WO2015129599A1 - 電子機器モジュールおよび電源モジュール - Google Patents
電子機器モジュールおよび電源モジュール Download PDFInfo
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- WO2015129599A1 WO2015129599A1 PCT/JP2015/054937 JP2015054937W WO2015129599A1 WO 2015129599 A1 WO2015129599 A1 WO 2015129599A1 JP 2015054937 W JP2015054937 W JP 2015054937W WO 2015129599 A1 WO2015129599 A1 WO 2015129599A1
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- heat
- semiconductor
- heating element
- conductor
- electronic device
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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
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/209—Heat transfer by conduction from internal heat source to heat radiating structure
-
- H10W40/10—
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- H10W90/00—
Definitions
- the present invention relates to a heat dissipation structure for an electronic device module having high heat generation such as a power supply module.
- Patent Document 1 describes an electronic device module including a coil, a resistor, and a capacitor that constitute a filter circuit, and a heat radiating plate that radiates heat from the coil and the resistor.
- the amount of heat generation is further increased, and a sufficient heat dissipation effect may not be obtained simply by contacting the heat sink.
- an object of the present invention is to provide an electronic device module and a power supply module having a simple structure and a structure capable of effectively radiating heat generating elements.
- the electronic device module includes a cooler and a heat conductor as well as a heating element.
- the cooler actively dissipates heat, such as a liquid cooling jacket.
- the cooler is in thermal contact with the heating element.
- the thermal conductor has a higher thermal conductivity than the heating element.
- the thermal conductor is in thermal contact with the heating element. Further, the heat conductor is in thermal contact with the cooler in a region that does not contact the heating element.
- the heat of the heating element is directly transmitted to the cooler. Further, the heat of the heating element is propagated to the cooler via the heat conductor. Thereby, the heat dissipation effect with respect to a heat generating element improves rather than a cooler single-piece
- the heat conductor is disposed on the side opposite to the side where the cooler is disposed in the heating element.
- the heat conductor is plate-shaped and includes a convex portion that forms a space for sandwiching the heat generating element between the heat conductor.
- the heat generating element can be effectively dissipated by a heat conductor having a simple configuration.
- the electronic device module of the present invention may have the following configuration.
- the heating element is used as a first heating element, and a second heating element different from the first heating element is provided in the electronic device module.
- the second heating element is in thermal contact with the surface of the thermal conductor opposite to the first heating element, or the region where the thermal conductor is in thermal contact with the cooler.
- the first heating element is dissipated by the cooler and the heat conductor that is in thermal contact with the cooler
- the second heating element is heat that is in thermal contact with the cooler.
- Heat is dissipated by the conductor.
- the electronic device module of the present invention may have the following configuration.
- the electronic device module includes a third heat generating element different from the first heat generating element and the second heat generating element, and a second heat conduction different from the first heat conductor using the heat conductor as the first heat conductor. And a body.
- the third heating element is disposed on the surface of the heat conductor opposite to the second heating element.
- the second heat conductor is disposed on the side opposite to the side where the first heat conductor is disposed with the third heat generating element interposed therebetween, and is in thermal contact with the first heat conductor or the cooler. is doing.
- the present invention also relates to a power supply module, and the power supply module has the configuration of the electronic device module described above.
- the heating element is a semiconductor IC for power supply.
- the heating element is a semiconductor IC for power supply
- the electronic device module is a power supply module.
- the semiconductor IC of the power supply module is a highly heat-generating element. Therefore, a power supply module having excellent heat dissipation can be realized by effectively radiating the semiconductor IC.
- the present invention also relates to a power supply module, and the power supply module has the configuration of the electronic device module described above.
- the first heating element is a primary side semiconductor IC and a secondary side semiconductor IC for power supply.
- the second heating element is a transformer core. The transformer core is disposed between the primary semiconductor IC placement region and the secondary semiconductor IC placement region, and the thermal conductor is in thermal contact with the cooler.
- the primary semiconductor IC and the secondary semiconductor IC of the power supply module can be effectively radiated and the main transformer can also be radiated effectively. Further, since the main transformer is disposed between the primary side semiconductor IC and the secondary side semiconductor IC, the wiring between the primary side semiconductor IC and the main transformer and the wiring between the main transformer and the secondary side semiconductor IC are simplified. Can be realized with a simple configuration.
- a structure capable of effectively dissipating heat generated by a heating element provided in an electronic device module such as a power supply module can be realized with a simple structure.
- FIG. 1A is a plan view of the electronic device module according to the first embodiment of the present invention.
- FIG. 1B is a side view of the electronic device module according to the first embodiment of the present invention.
- the electronic device module 10 includes a cooler 20, a heat conductor 30, and semiconductor ICs 41 and 42.
- the semiconductor ICs 41 and 42 correspond to “heating elements” of the present invention.
- the semiconductor IC 41 includes a main body 410 and external connection terminals 413 and 414.
- the main body 410 has a structure in which a semiconductor substrate on which a predetermined semiconductor circuit is formed is molded with an insulating resin.
- the main body 410 is a substantially flat rectangular parallelepiped having a small thickness (height) compared to the dimensions in two orthogonal directions in plan view.
- the external connection terminals 413 and 414 are formed so as to protrude from the side surface of the main body 410 to the outside.
- the semiconductor IC 42 includes a main body 420 and an external connection terminal 423.
- the semiconductor IC 42 has the same structure as that of the semiconductor element 41, and a description thereof will be omitted.
- the cooler 20 includes a cooling frame 21 and a cooling function unit 22.
- the cooling frame 21 has a structure having a main surface with a predetermined area.
- the cooling frame 21 is made of a material having high thermal conductivity. More specifically, the cooling frame 21 is made of a material having a high thermal conductivity with respect to the semiconductor ICs 41 and 42, and more preferably a material having a sufficiently high thermal conductivity with respect to the semiconductor ICs 41 and 42 (for example, one digit). As described above, it is made of a material having different thermal conductivity.
- the cooling function unit 22 is, for example, a liquid cooling function unit, and is disposed on the inner surface side of the surface wall of the cooling frame 21.
- the cooling frame 21 is cooled by the cooling function unit 22. In other words, the cooling frame 21 is radiated by the cooling function unit 22.
- the semiconductor ICs 41 and 42 are arranged on the surface side of the cooling frame 21.
- the semiconductor IC 41 and the semiconductor IC 42 are spaced apart from each other on the surface of the cooling frame 21.
- the entire back surface 411 of the main body 410 is in contact with the cooling frame 21.
- the semiconductor IC 42 the entire back surface 421 of the main body 420 is in contact with the cooling frame 21.
- an insulating sheet having a high thermal conductivity may be interposed between the cooling frame 21 and the semiconductor ICs 41 and 42. As a result, the semiconductor ICs 41 and 42 and the cooling frame 21 are in thermal contact with each other.
- the heat conductor 30 has a flat plate shape and includes protrusions 31 and 32 protruding in a direction perpendicular to the flat plate surface.
- the planar area of the convex portion 31 is equal to or larger than the planar area of the semiconductor IC 41, and preferably approximately equal to the area of the semiconductor IC 41.
- the planar area of the convex portion 32 is equal to or larger than the planar area of the semiconductor IC 42, and is preferably approximately equal to the area of the semiconductor IC 42.
- the heat conductor 30 has a shape including convex portions 31, 32 and concave portions 33, 34, 35 as viewed from the side.
- the concave portion 33 is a region sandwiched between the convex portions 31 and 32, the concave portion 34 is a region closer to the end of the flat plate than the convex portion 31, and the concave portion 35 is closer to the end of the flat plate than the convex portion 32. It is an area.
- the thermal conductor 30 is made of a material having a high thermal conductivity with respect to the semiconductor ICs 41 and 42, and more preferably made of a material having a sufficiently high thermal conductivity with respect to the semiconductor ICs 41 and 42.
- the heat conductor 30 is disposed on the surface of the cooling frame 21.
- the heat conductor 30 has the bottom surfaces of the recesses 33, 34, and 35 in contact with the surface of the cooling frame 21, and the semiconductor IC 41 is disposed in the space on the cooling frame 21 side formed by the protrusions 31.
- the semiconductor IC 42 is arranged in the cooling frame 21 so that the semiconductor IC 42 is arranged in the space on the cooling frame 21 side that can be formed.
- the cooling frame 21 and the heat conductor 30 are in thermal contact with each other.
- the cooling frame 21 and the heat conductor 30 are in contact with each other over a wide area, so that the heat conduction between the cooling frame 21 and the heat conductor 30 is increased. can do.
- the surface of the convex portion 31 on the hollow side is in contact with the surface 412 of the semiconductor IC 41.
- the hollow surface of the convex portion 32 is in contact with the surface 422 of the semiconductor IC 42.
- the heat conductor 30 is a conductive material and the conductor portion of the semiconductor ICs 41 and 42 exists in a region where the heat conductor 30 and the semiconductor ICs 41 and 42 abut, the heat conductor 30 and the semiconductor ICs 41 and 42 are present. Between them, an insulating sheet having a high thermal conductivity may be interposed. As a result, the semiconductor ICs 41 and 42 and the thermal conductor 30 are in thermal contact with each other.
- FIG. 2 is a diagram illustrating a heat dissipation concept of the electronic device module according to the first embodiment of the present invention.
- FIG. 2 is a partially enlarged view including a region where the semiconductor IC 41 is disposed in the electronic device module 10.
- a thick arrow having a dashed outline shown in FIG. 2 indicates a heat conduction state.
- heat generated from the semiconductor IC 41 is conducted to the cooling frame 21 and the heat conductor 30.
- the heat conducted from the back surface 411 of the semiconductor IC 41 to the cooling frame 21 is radiated by the cooling function unit 22. Therefore, the cycle in which heat is conducted from the semiconductor IC 41 toward the cooling frame 21 and is radiated by the cooling function unit 22 is continued.
- the heat conducted from the surface 412 of the semiconductor IC 41 to the heat conductor 30 is conducted through the heat conductor 30 and is conducted from the recesses 33 and 34 to the cooling frame 21.
- the heat conducted to the cooling frame 21 is radiated by the cooling function unit 22. Therefore, the cycle in which heat is conducted from the semiconductor IC 41 toward the cooling frame 21 via the heat conductor 30 and is radiated by the cooling function unit 22 is continued.
- the heat conductor 30 since the heat conductor 30 has the same thermal conductivity as that of the cooling frame 21, it is possible to obtain a heat radiation function substantially equivalent to the mode in which the cooler 20 is in contact with the surface 412 side of the semiconductor IC 41.
- Such heat dissipation is similarly performed on the semiconductor IC 42.
- the semiconductor ICs 41 and 42 can be effectively radiated. Furthermore, by using the configuration of the present embodiment, a heat dissipation effect equivalent to the structure in which the semiconductor ICs 41 and 42 are sandwiched between the two coolers can be obtained without using the structure in which the semiconductor ICs 41 and 42 are sandwiched between the two coolers. Can do. That is, effective heat dissipation can be realized with a simple configuration.
- the heat conductor 30 can be easily fixed to the cooling frame 21 by forming the heat conductor 30 as a flat plate. For example, if through holes are formed in the recesses 33, 34, and 35 of the heat conductor 30 and are fixed to the cooling frame 21 with screws that pass through the through holes, the heat conductor 30 can be easily fixed to the cooling frame 21. Can do. Thereby, the heat dissipation mechanism with high heat dissipation with respect to semiconductor IC41,42 is easily realizable.
- the heat dissipation function may be shared.
- the external connection terminal 414 that also serves as the heat dissipation function may be sandwiched between the cooling frame 21 and the heat conductor 30. Thereby, the heat dissipation efficiency with respect to the semiconductor IC 41 can be further increased.
- the heat conductor is structured to sandwich the semiconductor IC that is a heat generating element, but is not limited to this, and any structure that can be in thermal contact with the heat generating element may be used.
- any structure that can be in thermal contact with the heat generating element may be used.
- an L-shaped structure may be used so that both the heating element and the cooler are in thermal contact.
- FIG. 3A is a plan view of an electronic device module according to the second embodiment of the present invention.
- FIG. 3B is a side view of the electronic device module according to the second embodiment of the present invention.
- FIG. 4 is a schematic circuit diagram of an electronic device module according to the second embodiment of the present invention.
- the power supply module 10A of this embodiment has a basic configuration of the electronic device module 10 according to the first embodiment. Therefore, below, only a different part from the electronic device module 10 which concerns on 1st Embodiment is demonstrated concretely.
- the power supply module 10A includes a semiconductor IC 41 that is a primary side switching IC and a semiconductor IC 42 that is a secondary side switching IC.
- the input end of the semiconductor IC 41 is the input end of the power supply module 10A and is connected to an external power supply.
- a primary coil of the main transformer 43 is connected to the output terminal of the semiconductor IC 41.
- a resonance coil 44 is connected between the primary side coil and one output end of the semiconductor IC 41. If the resonance coil 44 is not required, the resonance coil 44 can be omitted.
- the input end of a semiconductor IC 42 which is a secondary side switching IC is connected to the secondary side coil of the main transformer 43.
- the output end of the semiconductor IC 42 is the output end of the power supply module 10A and is connected to an external load.
- the power supply module 10A having such a circuit configuration has a structure shown in FIG.
- the core of the main transformer 43 is disposed in contact with the surface of the recess 33 of the heat conductor 30. Thereby, the main transformer 43 is in thermal contact with the heat conductor 30.
- the core of the resonance coil 44 is disposed in contact with the surface of the convex portion 31 of the heat conductor 30. Thereby, the resonance coil 44 is in thermal contact with the heat conductor 30.
- FIG. 5 is a diagram showing a heat dissipation concept of the power supply module according to the second embodiment of the present invention.
- FIG. 5 is a partially enlarged view including a region where the main transformer 43 and the resonance coil 44 are arranged in the power supply module 10A.
- a thick arrow having a dashed outline shown in FIG. 5 indicates a heat conduction state.
- the heat generated from the semiconductor ICs 41 and 42 is conducted to the cooling frame 21 and the heat conductor 30 as in the above-described embodiment, and is effectively dissipated.
- the heat generated from the core of the main transformer 43 is conducted to the upper thermal conductor 30 in the region where the thermal conductor 30 and the cooling frame 21 abut, and is conducted to the lower cooling frame 21 as it is.
- the heat conducted to the cooling frame 21 is radiated by the cooling function unit 22. Therefore, the cycle in which heat is conducted from the core of the main transformer 43 at a short distance through the two layers of the heat conductor 30 and the cooling frame 21 and is radiated by the cooling function unit 22 is continued.
- the heat conductor 30 has a thermal conductivity equivalent to that of the cooling frame 21, it is possible to obtain a heat radiation effect substantially equivalent to the mode in which the core of the main transformer 43 is in direct contact with the cooling frame 21. it can. That is, the core of the main transformer 43 that generates a large amount of heat can be effectively radiated.
- the heat generated from the core of the resonance coil 44 is conducted to the heat conductor 30.
- the thermal conductor 30 has higher thermal conductivity than the semiconductor IC 41, and is in thermal contact with the cooling frame 21 in the recesses 33 and 34. Therefore, the heat emitted from the core of the resonance coil 44 and conducted to the heat conductor 30 is conducted from the convex portion 31 to the cooling frame 21 via the concave portions 33 and 34 without being conducted to the semiconductor IC 41. Thereby, the heat generated from the core of the resonance coil 44 can also be effectively dissipated. At this time, the heat conductor 30 is in thermal contact with the cooling frame 21.
- the temperature of the convex portion 31 is increased by the interaction between the heat generated from the core of the resonance coil 44 and the heat generated from the semiconductor IC 41, and the heat dissipation efficiency of the resonance coil 44 and the semiconductor IC 41 is decreased. This can be suppressed. That is, even if it is the structure which arrange
- the core of the main transformer 43 is disposed between the semiconductor IC 41 that is the primary side semiconductor IC and the semiconductor IC 42 that is the secondary side semiconductor IC, the circuit connection order and the element placement order And become the same.
- a primary resonance coil 44 is disposed above the semiconductor IC 41 which is the primary semiconductor IC.
- the core of the main transformer 43 with high heat generation as the power supply module 10A is disposed in the surface contact area largely on the cooling frame 21, the core of the main transformer 43 can be radiated more effectively and the efficiency. High power module 10A can be realized.
- the power supply module 10A has been described as an example. However, a mode in which the heating elements are arranged in a plurality of layers can be applied to other electronic device modules.
- the thermal conductor of each layer only needs to be in thermal contact with the thermal conductor on the cooling frame side, and if the thermal conductor of each layer is in direct thermal contact with the cooling frame, respectively, Effective heat dissipation becomes possible.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
Abstract
Description
10A:電源モジュール
20:冷却器
21:冷却フレーム
22:冷却機能部
30…熱伝導体
41,42:半導体IC
31,32:凸部
33,34,35:凹部
43:メイントランス
44:共振用コイル
410:半導体IC41の本体
411:半導体IC41の裏面
412:半導体IC41の表面
413,414:半導体IC41の外部接続端子
420:半導体IC42の本体
421:半導体IC42の裏面
422:半導体IC42の表面
423:半導体IC42の外部接続端子
Claims (7)
- 発熱素子を備える電子機器モジュールであって、
前記発熱素子に対して熱的に接触する冷却器と、
前記発熱素子に熱的に接触し、前記発熱素子よりも熱伝導率の高い熱伝導体と、
を備え、
前記熱伝導体は、前記発熱素子と接触しない領域において前記冷却器に熱的に接触している、
電子機器モジュール。 - 前記熱伝導体は、前記発熱素子における前記冷却器の配置される側と反対側に配置されている、請求項1に記載の電子機器モジュール。
- 前記熱伝導体は板状であり、
前記熱伝導体は、前記冷却器との間に前記発熱素子を挟み込む空間を形成する凸部を備える、
請求項1または請求項2に記載の電子機器モジュール。 - 前記発熱素子を第1の発熱素子とし、
該第1の発熱素子とは異なる第2の発熱素子を備え、
前記第2の発熱素子は、前記熱伝導体の前記第1の発熱素子と反対側の面、または、前記熱伝導体が前記冷却器に熱的に接触している領域に熱的に接触している、
請求項1乃至請求項3のいずれか1項に記載の電子機器モジュール。 - 前記第1の発熱素子および前記第2の発熱素子と異なる第3の発熱素子と、
前記熱伝導体を第1の熱伝導体として該第1の熱伝導体と異なる第2の熱伝導体と、
を備え、
前記第3の発熱素子は、前記熱伝導体における前記第2の発熱素子と反対側の面に配置され、
前記第2の熱伝導体は、前記第3の発熱素子を挟んで前記第1の熱伝導体の配置される側と反対側に配置されるとともに、前記第1の熱伝導体または前記冷却器に熱的に接触している、
請求項4記載の電子機器モジュール。 - 請求項1乃至請求項5のいずれか1項に記載の電子機器モジュールの構成を備え、
前記発熱素子は、電源用の半導体ICである、
電源モジュール。 - 請求項4に記載の電子機器モジュールの構成を備え、
前記第1の発熱素子は、電源用の一次側半導体ICと二次側半導体ICであり、
前記第2の発熱素子は、トランスコアであり、
前記トランスコアは、前記一次側半導体ICの配置領域と前記二次側半導体ICの配置領域間にあり前記熱伝導体が前記冷却器に熱的に接触している領域に配置されている、
電源モジュール。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016505190A JP6265260B2 (ja) | 2014-02-28 | 2015-02-23 | 電源モジュール |
| DE112015001037.8T DE112015001037B4 (de) | 2014-02-28 | 2015-02-23 | Elektronikgerätmodul und Stromversorgungsmodul |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014037736 | 2014-02-28 | ||
| JP2014-037736 | 2014-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015129599A1 true WO2015129599A1 (ja) | 2015-09-03 |
Family
ID=54008919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2015/054937 Ceased WO2015129599A1 (ja) | 2014-02-28 | 2015-02-23 | 電子機器モジュールおよび電源モジュール |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6265260B2 (ja) |
| DE (1) | DE112015001037B4 (ja) |
| WO (1) | WO2015129599A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018007414A (ja) * | 2016-07-01 | 2018-01-11 | 株式会社デンソー | Dc−dcコンバータ用半導体モジュール及びパワーコントロールユニット |
| JP2021082804A (ja) * | 2019-11-15 | 2021-05-27 | 株式会社デンソー | 半導体モジュール |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0528079U (ja) * | 1991-09-18 | 1993-04-09 | 株式会社リコー | 中折れドアの組付け位置調整機構 |
| JP2002083915A (ja) * | 2000-06-29 | 2002-03-22 | Denso Corp | 電力用半導体装置 |
| WO2011043493A1 (ja) * | 2009-10-08 | 2011-04-14 | 日本電気株式会社 | 半導体装置 |
| JP2012227344A (ja) * | 2011-04-19 | 2012-11-15 | Toyota Motor Corp | 電力変換装置 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006032490A (ja) * | 2004-07-13 | 2006-02-02 | Hitachi Ltd | エンジン制御回路装置 |
| JP2008041893A (ja) * | 2006-08-04 | 2008-02-21 | Denso Corp | 放熱装置 |
| DE102008019797B4 (de) * | 2008-04-18 | 2023-09-21 | Sew-Eurodrive Gmbh & Co Kg | Kühlanordnung und Umrichter |
-
2015
- 2015-02-23 WO PCT/JP2015/054937 patent/WO2015129599A1/ja not_active Ceased
- 2015-02-23 JP JP2016505190A patent/JP6265260B2/ja active Active
- 2015-02-23 DE DE112015001037.8T patent/DE112015001037B4/de active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0528079U (ja) * | 1991-09-18 | 1993-04-09 | 株式会社リコー | 中折れドアの組付け位置調整機構 |
| JP2002083915A (ja) * | 2000-06-29 | 2002-03-22 | Denso Corp | 電力用半導体装置 |
| WO2011043493A1 (ja) * | 2009-10-08 | 2011-04-14 | 日本電気株式会社 | 半導体装置 |
| JP2012227344A (ja) * | 2011-04-19 | 2012-11-15 | Toyota Motor Corp | 電力変換装置 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018007414A (ja) * | 2016-07-01 | 2018-01-11 | 株式会社デンソー | Dc−dcコンバータ用半導体モジュール及びパワーコントロールユニット |
| JP2021082804A (ja) * | 2019-11-15 | 2021-05-27 | 株式会社デンソー | 半導体モジュール |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112015001037B4 (de) | 2020-10-15 |
| JPWO2015129599A1 (ja) | 2017-03-30 |
| DE112015001037T5 (de) | 2016-12-22 |
| JP6265260B2 (ja) | 2018-01-24 |
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