WO2019175949A1 - Power source device and electronic module fixing method - Google Patents

Power source device and electronic module fixing method Download PDF

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Publication number
WO2019175949A1
WO2019175949A1 PCT/JP2018/009635 JP2018009635W WO2019175949A1 WO 2019175949 A1 WO2019175949 A1 WO 2019175949A1 JP 2018009635 W JP2018009635 W JP 2018009635W WO 2019175949 A1 WO2019175949 A1 WO 2019175949A1
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Prior art keywords
substrate
housing
elastic body
pressed
power supply
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PCT/JP2018/009635
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French (fr)
Japanese (ja)
Inventor
拓也 吉岡
雄一 高柳
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新電元工業株式会社
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Priority to PCT/JP2018/009635 priority Critical patent/WO2019175949A1/en
Priority to JP2019502809A priority patent/JP6650548B1/en
Publication of WO2019175949A1 publication Critical patent/WO2019175949A1/en

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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
    • H05K7/02—Arrangements of circuit components or wiring on supporting structure
    • H05K7/12—Resilient or clamping means for holding component to structure
    • 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

Definitions

  • the present invention relates to a power supply device and an electronic module fixing method.
  • an electronic module mounted on a car or the like is fixed to a housing or the like so that its position does not shift even when subjected to vibration, but after fixing, an excessive force is not applied to a substrate included in the electronic module. It has been done.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2017-34068
  • an elastic member is provided between the upper surface of the substrate and the head of the screw, thereby preventing an excessive force from being applied to the substrate.
  • 2 Japanese Patent Laid-Open No. 2017-33997 includes an elastic portion that presses the printed circuit board toward the shelf and presses the printed circuit board against the shelf to hold the printed circuit board, thereby preventing an excessive force from being applied to the circuit board. ing.
  • a heat dissipation material for example, grease
  • the substrate is fixed to the housing by screwing the outer edge of the substrate to the housing.
  • the heat radiating material is applied to the position of the housing corresponding to the center of the back surface of the substrate.
  • the heat radiating material has a certain degree of hardness, it takes time for the heat radiating material to spread around.
  • the present invention has been made in view of the above problems, and provides a power supply device and an electronic module fixing method that can alleviate a substrate fixed to a housing from warping in a direction away from the housing.
  • the purpose is to provide.
  • the power supply device is: A housing, A pressed member having a substrate on the surface facing the housing and provided on the housing; A plurality of elastic bodies having one end connected to the pressed member and extending in a direction away from the pressed member; A locking member for locking the elastic body to the housing at a position different from the position where the pressed member is provided; A heat dissipating material provided between the back surface of the substrate and the housing; Is provided.
  • the pressed member includes a sealing member that is connected to one end portions of the plurality of elastic bodies and seals the substrate, and the sealing member is a circular shape that contacts an outer edge portion of the surface of the substrate. End of the The substrate is pressed against the casing by pressing the circumferential end of the sealing member against the outer edge of the surface of the substrate.
  • the elastic body is provided with a through hole,
  • the locking member locks the elastic body to the housing in a state of being inserted into the through hole,
  • the elastic body is provided with a U-shaped notch at intervals around the through-hole, An end of the elastic body on the bottom side of the U-shaped notch is connected to the pressed member.
  • the locking member is a screw.
  • the elastic body is plate-shaped.
  • An electronic module fixing method includes: A pressed member having a substrate on one surface and provided on the casing, and a plurality of elastic bodies having one end connected to the pressed member and extending in a direction away from the pressed member
  • An electronic module fixing method for fixing an electronic module comprising: Applying the heat dissipation material so that the heat dissipation material is disposed at a position including the center of the back surface of the substrate; A step of locking the plurality of elastic bodies to the housing with a locking member at a position different from the position where the pressed member is provided;
  • the elastic body relaxes the locking force by the locking member in the middle of the elastic body being locked to the housing, and the pressing force based on the relaxed locking force Since the member to be pressed is pressed and the substrate included in the member to be pressed is pressed accordingly, the stress applied to the substrate can be relaxed. Thus, the substrate is pushed little by little toward the housing in the middle of the elastic body being locked to the housing. For this reason, since the force applied to the substrate can be suppressed until the heat radiating material spreads to the position where the substrate is pressed by the member to be pressed, it is possible to alleviate the substrate being warped upward during locking.
  • FIG. 1 is a schematic cross-sectional view showing a partial configuration of a power supply device according to an embodiment which is an aspect of the present invention, and is a cross-sectional view taken along line A-A ′ of FIG. 2.
  • FIG. 2 is a perspective view showing a partial configuration of the power supply device.
  • FIG. 3 is a perspective view when the electrode E1, the terminal T1, and the relay element R1 of FIG. 2 are extracted.
  • 4 is a cross-sectional view taken along the line A-A 'of FIG.
  • FIG. 5 is a perspective view of the elastic body.
  • FIG. 6 is a schematic cross-sectional view showing a partial configuration of the power supply device before being fixed by the locking member.
  • FIG. 7 is a schematic cross-sectional view showing a partial configuration of the power supply device being fixed by the locking member.
  • the power supply device 1 includes a housing 2 and an electronic module 6 fixed to the housing.
  • the housing 2 is, for example, a heat sink.
  • the electronic module 6 includes a pressed member 3 having a substrate on one side and provided on the casing.
  • the pressed member 3 has a substrate 31 on the surface facing the housing 2.
  • the electronic module 6 has elastic bodies D1 and D2.
  • the elastic bodies D1 and D2 are connected at one end to the sealing member 32 of the pressed member 3 and the sealing member 32 of the pressed member 3. It extends in the direction away from.
  • the elastic bodies D1 and D2 are plate-like, and are leaf springs as an example.
  • the number of elastic bodies is described as two. However, the number is not limited to this, and there may be three or more elastic bodies.
  • the power supply device 1 includes a locking member S ⁇ b> 1 that locks the elastic bodies D ⁇ b> 1 and D ⁇ b> 2 to the housing at a position different from the position where the pressed member 3 is provided.
  • S2 is provided.
  • the locking members S1 and S2 according to the present embodiment are screws as an example, and the pressed member 3 is pressed against the casing 2 by pressing the elastic bodies D1 and D2 against the casing 2 by the fastening force of the screws. It is fixed with. Thereby, the substrate 31 is fixed to the housing 2.
  • the power supply device 1 includes a heat dissipation material 5 provided between the back surface of the substrate 31 and the housing 2.
  • the heat dissipation material 5 is, for example, grease or a heat dissipation sheet.
  • the heat radiating material 5 will be described below as grease.
  • the substrate 31 has a metal heat sink 311 on the back surface.
  • the layer constituting the back surface of the substrate 31 is the metal heat radiating plate 311, the heat generated in the substrate 31 is efficiently released from the heat radiating plate 311 to the housing 2 through the heat radiating material 5. Can do.
  • the electrode E1 of the electronic module 6 is connected to the terminal T1 of the transformer 4 via the relay R1.
  • the electrode E1, the relay element R1, and the terminal T1 have conductivity.
  • substrate 31 is electrically connected to the transformer 4 via the relay element R1 and the terminal T1.
  • the relay element R1 has elasticity. Since the relay element R1 has elasticity as described above, the positions of the terminal T1 and the electrode E1 are horizontal with respect to the substrate 31 from the position where the terminal T1 and the electrode E1 should originally be in the manufacturing process before connecting the relay element R1 to the electrode E1 and the terminal T1.
  • the relay element sandwiched between the terminal T1 and the electrode E1 pushes both the terminal T1 and the electrode E1 with the force of returning by the elastic force, so that the relay element R1 is connected to the terminal T1 and the electrode E1. Can do.
  • the electrode E2 of the electronic module 6 is connected to the terminal T2 of the transformer 4 via the relay element R2.
  • the electrode E2, the relay R2 and the terminal T2 have conductivity.
  • substrate 31 is electrically connected to the transformer 4 via the relay element R2 and the terminal T2.
  • the relay element R2 has elasticity. Since the relay R2 has elasticity as described above, the positions of the terminal T2 and the electrode E2 are horizontal with respect to the substrate 31 from the position where the terminal T2 and the electrode E2 should originally be in the manufacturing process before connecting the relay R2 to the electrode E2 and the terminal T2.
  • the relay element sandwiched between the terminal T2 and the electrode E2 pushes both the terminal T2 and the electrode E2 with the force of returning by the elastic force, so that the relay element R2 is connected to the terminal T2 and the electrode E2. Can do.
  • the configuration of the relay element R1, the electrode E1, and the terminal T1 will be described below as a representative.
  • the electrode E1 provided on the substrate 31 has shoulders E11 and E12 provided on the side of the end and a center E13 provided in the center of the end.
  • the relay element R1 is curved in a U shape between the electrode E1 and the terminal T1 in a longitudinal sectional view.
  • the relay element R1 is curved in a U shape so as to be convex in a direction approaching the substrate 31 in a longitudinal sectional view.
  • the longitudinal sectional view is a cut surface cut by a plane perpendicular to the substrate 31.
  • the relay is performed. Since the child R1 is bent in a U shape, one end of the relay R1 is pressed against the electrode E1 by the elastic force, the other end of the relay R1 is pressed against the terminal T1, and the relay R1 is connected to the electrode E1. It is fixed while sandwiched between the terminals T1. In this way, the displacement in the height direction and the displacement in the horizontal direction of the electrode E1 and the terminal T1 can be absorbed.
  • the relay element R1 is curved in a U shape so that one end portion sandwiches the end portion of the electrode E1 and the other end portion sandwiches the end portion of the terminal T1 in the longitudinal sectional view. It is curved in a U shape.
  • one end and the other end of the relay element R1 are curved in a U shape so as to protrude in a direction away from the substrate 31.
  • the relay is performed.
  • One end of the child R1 can be fixed to the electrode E1 by sandwiching the electrode E1
  • the other end of the relay R1 can be fixed to the terminal T1 by sandwiching the terminal T1. In this way, the displacement in the height direction and the displacement in the horizontal direction of the electrode E1 and the terminal T1 can be absorbed.
  • the electrode E1 provided on the substrate 31 includes shoulders E11 and E12 provided on the side of the end, and a center E13 provided on the center of the end.
  • one end of the relay element R1 is branched into a plurality (here, three as an example), and the outer surface of the first branch portion R11 is the electrode E1 among the plurality of (here, three as an example) branches. It is fixed to the central portion E13 of the end portion by welding.
  • the first branch portion R11 is a branch located at the center among three branches as an example.
  • the second branch portions R12 and R13 of a plurality of (here, three as an example) branches are curved in a U shape so as to sandwich the shoulder portions E11 and E12 of the corresponding electrodes E1, respectively. is doing.
  • the relay The relay R1 is fixed to the electrode E1 by the second branch portions R12, R13 of the child R1 sandwiching the shoulders E11, E12 of the electrode E1. In this way, the deviation in the height direction and the horizontal direction of the electrode E1 can be absorbed. Furthermore, since the second branch parts R12 and R13 of the relay element R1 sandwich the shoulder parts E11 and E12 of the electrode E1, the fixing of the relay element R1 to the electrode E1 can be strengthened.
  • the terminal T1 provided in the transformer 4 includes shoulder portions T11 and T12 provided on the side of the end portion, and a center portion T13 provided in the center of the end portion.
  • the other end of the relay element R1 is branched into a plurality (here, three as an example), and the first branch portion among the plurality of (here, three as an example) branches.
  • the outer surface of R14 is fixed to the center portion T13 at the end of the terminal T1 by welding so that the second branch portions R15 and R16 of the plurality of branches sandwich the shoulder portions T11 and T12 of the corresponding terminal T1, respectively. It is curved in a U shape.
  • the relay branch R1 is fixed to the terminal T1 by the second branch portions R15 and R16 of the child R1 sandwiching the shoulder portions T11 and T12 of the terminal T1. In this way, the shift in the height direction and the horizontal direction of the terminal T1 can be absorbed. Further, since the second branch portions R15 and R16 of the relay element R1 sandwich the shoulder portions T11 and T12 of the electrode E1, the fixing of the relay element R1 to the terminal T1 can be strengthened.
  • the rigidity of the relay element R1 is lower than that of the electrode E1, for example. With this configuration, even if the position of the electrode E1 is displaced in the horizontal direction with respect to the substrate 31 due to a manufacturing process or vibration after manufacturing, the relay R1 can be bent to absorb an impact, and thus the electrode E1. Can be prevented from falling.
  • the rigidity of each relay element will be described as an example that is lower than the rigidity of the electrode to which the relay element is connected.
  • the pressed member 3 has a sealing member 32 to which one end portions of the elastic bodies D1 and D2 are connected and seal the substrate 31.
  • the sealing member 32 has a circular end that contacts the outer edge of the surface of the substrate 31.
  • the substrate 31 is pressed against the housing 2 by pressing the circumferential end of the sealing member 32 against the outer edge of the surface of the substrate 31.
  • the sealing member 32 is sandwiched between the elastic bodies D ⁇ b> 1 and D ⁇ b> 2 and the substrate 31, and the end portion on the circumference of the sealing member 32 abuts on the substrate and the circumference of the sealing member 32 is increased. Since the substrate is pushed by the entire end portion, the force that the substrate 31 receives from the sealing member 32 can be made uniform, and the surface pressure exerted on the housing by the substrate 31 can be made uniform. Thereby, it is possible to prevent a large stress from being applied locally to the substrate 31.
  • the elastic bodies D1 and D2 relax the locking force by the locking members S1 and S2, and the pressing is performed based on the relaxed locking force. Since the sealing member 32 is pushed by the force and the substrate 31 is pushed by the sealing member 32 accordingly, the stress applied to the substrate 31 can be relaxed. As a result, the substrate 31 is pushed toward the housing 2 little by little while the elastic bodies D1 and D2 are being locked to the housing 2. For this reason, since the force applied to the substrate 31 can be suppressed until the heat radiating material 5 spreads to the end of the back surface of the substrate 31, the substrate 31 can be prevented from warping upward during locking.
  • the elastic body D1 since the elastic bodies D1 and D2 have the same configuration, the elastic body D1 will be described as a representative.
  • the elastic body D1 is provided with a through hole H1.
  • the locking member S ⁇ b> 1 locks the elastic body D ⁇ b> 1 to the housing 2 while being inserted through the through hole H ⁇ b> 1.
  • the elastic body D1 is provided with a U-shaped notch M1 at intervals around the through hole H1.
  • the elastic body D2 is also provided with a U-shaped notch M2 at intervals around a through hole (not shown).
  • the bottom portion of the U shape is referred to as a bottom portion B1
  • the top portion of the U shape is referred to as top portions U11 and U12.
  • the worker locks the elastic bodies D1 and D2 to the housing 2 by the locking members S1 and S2 at a position different from the position where the pressed member 3 is provided.
  • screws as an example of the locking members S1 and S2 advance in a direction approaching the housing 2 while rotating, and the elastic bodies D1 and D2 are moved to the housing by the fastening force of the screws. It is pushed in the direction approaching the body 2.
  • the position of the edge part opposite to the edge part connected with the to-be-pressed member 3 of elastic body D1, D2 is located.
  • the elastic bodies D1 and D2 incline with respect to the surface facing the board
  • the heat dissipation material 5 gradually extends around the substrate 31 by being pushed toward the housing 2 in the direction.
  • the substrate 31 is allowed in a period before the heat radiating material 5 reaches a horizontal position (for example, x 1 or x 2 in FIG. 7) where the circular end of the sealing member 32 is located.
  • a consistency indicating the elasticity coefficient of the elastic bodies D1 and D2 or the hardness of the heat dissipating material 5 is set so that a pressing force equal to or less than the value is applied. This allowable value is set in advance.
  • the power supply device 1 includes the housing 2 and the pressed member 3 that has the substrate 31 on the surface facing the housing 2 and is provided on the housing 2. Is provided. Furthermore, the power supply device 1 includes elastic bodies D1 and D2 having one end connected to the pressed member 3 and extending in a direction away from the pressed member 3. Furthermore, the power supply device 1 includes locking members S1 and S2 that lock the elastic body to the housing at a position different from the position where the pressed member 3 is provided, the back surface of the substrate 31, and the housing 2. And a heat dissipating material 5 provided between the two.
  • the elastic bodies D1 and D2 relax the locking force by the locking members S1 and S2 in the middle of the locking of the elastic bodies D1 and D2 to the housing 2, and the relaxed locking force
  • the pressed member 3 is pressed by the pressing force based on this, and the substrate 31 included in the pressed member 3 is pressed accordingly, so that the stress applied to the substrate 31 can be relaxed.
  • the substrate 31 is pushed toward the housing 2 little by little while the elastic bodies D1 and D2 are being locked to the housing 2.
  • the force applied to the substrate 31 can be suppressed until the heat dissipation material 5 spreads to the position where the substrate 31 is pressed by the pressed member 3, the direction in which the substrate 31 moves away from the housing 2 during locking (here Then, it can alleviate upward warping.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Mounting Components In General For Electric Apparatus (AREA)

Abstract

The invention comprises: a casing; a pressure-receiving member provided above the casing and having a base plate on the surface facing the casing; a plurality of elastic bodies, each extending in a direction away from the pressure-receiving member and having one end section coupled to the pressure-receiving member; anchoring members, each anchoring the corresponding elastic body onto the casing at a different position from the position where the pressure-receiving member is provided; and a thermal dissipation member provided between the casing and the back surface of the base plate.

Description

電源装置及び電子モジュール固定方法Power supply device and electronic module fixing method
　本発明は、電源装置及び電子モジュール固定方法に関する。 The present invention relates to a power supply device and an electronic module fixing method.
　従来、車などに搭載される電子モジュールは、振動を受けてもその位置がずれないように筐体などに固定されているが、固定後に、電子モジュールに含まれる基板に過大な力がかからないようにすることが行われている。例えば、特許文献１（特開２０１７－３４０６８）では、基板の上面とネジの頭部との間に弾性部材が設けられていることにより、基板に過大な力がかかることを防止し、特許文献２（特開２０１７－３３９９７）では、プリント基板を棚部側に向かって押圧してプリント基板を棚部に押し付けて保持させる弾性部を備えることにより、基板に過大な力がかかることを防止している。 Conventionally, an electronic module mounted on a car or the like is fixed to a housing or the like so that its position does not shift even when subjected to vibration, but after fixing, an excessive force is not applied to a substrate included in the electronic module. It has been done. For example, in Patent Document 1 (Japanese Patent Application Laid-Open No. 2017-34068), an elastic member is provided between the upper surface of the substrate and the head of the screw, thereby preventing an excessive force from being applied to the substrate. 2 (Japanese Patent Laid-Open No. 2017-33997) includes an elastic portion that presses the printed circuit board toward the shelf and presses the printed circuit board against the shelf to hold the printed circuit board, thereby preventing an excessive force from being applied to the circuit board. ing.
　一方、基板及び基板を封止する封止部材を有する被押圧部材を筐体に固定する際には、筐体に放熱材（例えば、グリス）を塗布し、その上に被押圧部材を配置し基板の外縁部を筐体にねじ止めすることによって基板を筐体に固定することが考えられる。その際、放熱材は基板の裏面の中央に対応する筐体の位置に塗布されるが、放熱材はある程度の固さを有するので放熱材が周りに広がるのに時間がかかる。このため、係止（例えば、ねじ止め）の初期の段階では、基板が押される位置まで放熱材が到達しておらず、放熱材が基板の裏面の中央に偏って存在するため、基板の中央が筐体から離れる方向に反ってしまうという問題がある。 On the other hand, when fixing a substrate and a pressed member having a sealing member for sealing the substrate to the casing, a heat dissipation material (for example, grease) is applied to the casing, and the pressed member is disposed thereon. It is conceivable to fix the substrate to the housing by screwing the outer edge of the substrate to the housing. At that time, the heat radiating material is applied to the position of the housing corresponding to the center of the back surface of the substrate. However, since the heat radiating material has a certain degree of hardness, it takes time for the heat radiating material to spread around. For this reason, in the initial stage of locking (for example, screwing), since the heat dissipation material does not reach the position where the substrate is pressed, and the heat dissipation material is biased to the center of the back surface of the substrate, the center of the substrate There is a problem that warps in a direction away from the housing.
　そこで本発明は、上記問題に鑑みてなされたものであり、筐体に固定される基板が当該筐体から離れる方向に反るのを緩和することを可能とする電源装置及び電子モジュール固定方法を提供することを目的とする。 Therefore, the present invention has been made in view of the above problems, and provides a power supply device and an electronic module fixing method that can alleviate a substrate fixed to a housing from warping in a direction away from the housing. The purpose is to provide.
［概念１］
　本発明の概念１による電源装置は、
　筐体と、
　前記筐体に対向する面に基板を有し且つ前記筐体の上に設けられた被押圧部材と、
　一端部が前記被押圧部材に連結しており且つ前記被押圧部材から離れる方向に延在している複数の弾性体と、
　前記被押圧部材が設けられている位置とは異なる位置において前記弾性体を前記筐体に係止している係止部材と、
　前記基板の裏面と前記筐体との間に設けられている放熱材と、
　を備える。 [Concept 1]
The power supply device according to the first concept of the present invention is:
A housing,
A pressed member having a substrate on the surface facing the housing and provided on the housing;
A plurality of elastic bodies having one end connected to the pressed member and extending in a direction away from the pressed member;
A locking member for locking the elastic body to the housing at a position different from the position where the pressed member is provided;
A heat dissipating material provided between the back surface of the substrate and the housing;
Is provided.
［概念２］
　本発明の概念１による電源装置において、
　前記基板は、裏面に金属製の放熱板を有する。 [Concept 2]
In the power supply device according to the first concept of the present invention,
The said board | substrate has a metal heat sink on the back surface.
［概念３］
　本発明の概念１又は２による電源装置において、
　前記被押圧部材は、前記複数の弾性体の一端部が連結され且つ前記基板を封止する封止部材を有しており、当該封止部材は前記基板の表面の外縁部に当接する周回状の端部を有しており、
　前記封止部材の周回状の端部が前記基板の表面の外縁部に押し付けられることにより、前記基板が前記筐体に押し付けられている。 [Concept 3]
In the power supply device according to the concept 1 or 2 of the present invention,
The pressed member includes a sealing member that is connected to one end portions of the plurality of elastic bodies and seals the substrate, and the sealing member is a circular shape that contacts an outer edge portion of the surface of the substrate. End of the
The substrate is pressed against the casing by pressing the circumferential end of the sealing member against the outer edge of the surface of the substrate.
［概念４］
　本発明の概念３による電源装置において、
　当該封止部材の周回状の端部が位置する水平位置まで前記放熱材が到達する前の期間において、前記基板に対して許容値以下の押し付け力がかかるように前記弾性体の弾性係数または前記放熱材の硬さを表すちょう度が設定されている。 [Concept 4]
In the power supply device according to the concept 3 of the present invention,
In the period before the heat radiating material reaches the horizontal position where the circular end of the sealing member is located, the elastic coefficient of the elastic body or the elastic body so that a pressing force of an allowable value or less is applied to the substrate. A consistency indicating the hardness of the heat dissipation material is set.
［概念５］
　本発明の概念１乃至４のいずれか１つによる電源装置において、
　前記弾性体には、貫通孔が設けられており、
　前記係止部材は、前記貫通孔に挿通された状態で前記弾性体を前記筐体に係止しており、
　前記弾性体は、前記貫通孔の周りに間隔を空けてＵ字状の切り欠きが設けられており、
　前記弾性体における前記Ｕ字状の切り欠きの底辺部側の端部が前記被押圧部材に連結されている。 [Concept 5]
In the power supply device according to any one of the concepts 1 to 4 of the present invention,
The elastic body is provided with a through hole,
The locking member locks the elastic body to the housing in a state of being inserted into the through hole,
The elastic body is provided with a U-shaped notch at intervals around the through-hole,
An end of the elastic body on the bottom side of the U-shaped notch is connected to the pressed member.
［概念６］
　本発明の概念１乃至５のいずれか１つによる電源装置において、
　前記係止部材はねじである。 [Concept 6]
In the power supply device according to any one of the concepts 1 to 5 of the present invention,
The locking member is a screw.
［概念７］
　本発明の概念１乃至６のいずれか１つによる電源装置において、
　前記弾性体は板状である。 [Concept 7]
In the power supply device according to any one of the concepts 1 to 6 of the present invention,
The elastic body is plate-shaped.
［概念８］
　本発明の概念８による電子モジュール固定方法は、
　一面に基板を有し且つ筐体の上に設けられた被押圧部材と、一端部が前記被押圧部材に連結しており且つ前記被押圧部材から離れる方向に延在している複数の弾性体と、を備える電子モジュールを固定する電子モジュール固定方法であって、
　放熱材が前記基板の裏面の中央を含む位置に配置されるように当該放熱材を塗布する工程と、
　前記被押圧部材が設けられている位置とは異なる位置において前記複数の弾性体を前記筐体に係止部材によって係止する工程と、
　を有する。 [Concept 8]
An electronic module fixing method according to the concept 8 of the present invention includes:
A pressed member having a substrate on one surface and provided on the casing, and a plurality of elastic bodies having one end connected to the pressed member and extending in a direction away from the pressed member An electronic module fixing method for fixing an electronic module comprising:
Applying the heat dissipation material so that the heat dissipation material is disposed at a position including the center of the back surface of the substrate;
A step of locking the plurality of elastic bodies to the housing with a locking member at a position different from the position where the pressed member is provided;
Have
したがって、本発明に係る電源装置は、弾性体が筐体に係止される途中の段階において、係止部材による係止力を弾性体が緩和し、当該緩和した係止力に基づく押し付け力によって被押圧部材が押され、これに伴い被押圧部材に含まれる基板が押されるので、基板にかかる応力を緩和することができる。これにより、弾性体が筐体に係止される途中の段階において、基板は筐体に向かって少しずつ押される。このため、基板が被押圧部材によって押されている位置まで放熱材が広がるまで基板にかかる力を抑えることができるので、係止中に基板が上向きに反るのを緩和することができる。 Therefore, in the power supply device according to the present invention, the elastic body relaxes the locking force by the locking member in the middle of the elastic body being locked to the housing, and the pressing force based on the relaxed locking force Since the member to be pressed is pressed and the substrate included in the member to be pressed is pressed accordingly, the stress applied to the substrate can be relaxed. Thus, the substrate is pushed little by little toward the housing in the middle of the elastic body being locked to the housing. For this reason, since the force applied to the substrate can be suppressed until the heat radiating material spreads to the position where the substrate is pressed by the member to be pressed, it is possible to alleviate the substrate being warped upward during locking.
図１は、本発明の一態様である実施形態に係る電源装置の一部構成を示す模式的断面図であり、図２のＡ－Ａ’断面図である。FIG. 1 is a schematic cross-sectional view showing a partial configuration of a power supply device according to an embodiment which is an aspect of the present invention, and is a cross-sectional view taken along line A-A ′ of FIG. 2. 図２は、電源装置の一部構成を示す斜視図である。FIG. 2 is a perspective view showing a partial configuration of the power supply device. 図３は、図２の電極Ｅ１、端子Ｔ１、中継子Ｒ１を抜き出した場合の斜視図である。FIG. 3 is a perspective view when the electrode E1, the terminal T1, and the relay element R1 of FIG. 2 are extracted. 図４は、図３のＡ－Ａ’断面図である。4 is a cross-sectional view taken along the line A-A 'of FIG. 図５は、弾性体の斜視図である。FIG. 5 is a perspective view of the elastic body. 図６は、係止部材による固定前の電源装置の一部構成を示す模式的断面図である。FIG. 6 is a schematic cross-sectional view showing a partial configuration of the power supply device before being fixed by the locking member. 図７は、係止部材による固定中の電源装置の一部構成を示す模式的断面図である。FIG. 7 is a schematic cross-sectional view showing a partial configuration of the power supply device being fixed by the locking member.
　以下、本発明に係る本発明の一態様である実施形態について図面に基づいて説明する。 Hereinafter, an embodiment which is an aspect of the present invention according to the present invention will be described with reference to the drawings.
　＜電源装置の構成＞
　図２に示すように、本発明の一態様である実施形態に係る電源装置１は、筐体２と、筐体に固定されている電子モジュール６とを備える。ここで筐体２は例えばヒートシンクである。 <Configuration of power supply>
As shown in FIG. 2, the power supply device 1 according to the embodiment which is an aspect of the present invention includes a housing 2 and an electronic module 6 fixed to the housing. Here, the housing 2 is, for example, a heat sink.
　ここで、電子モジュール６は、一面に基板を有し且つ筐体の上に設けられた被押圧部材３を有する。この被押圧部材３は、筐体２に対向する面に基板３１を有する。 Here, the electronic module 6 includes a pressed member 3 having a substrate on one side and provided on the casing. The pressed member 3 has a substrate 31 on the surface facing the housing 2.
　更に電子モジュール６は、弾性体Ｄ１、Ｄ２を有し、当該弾性体Ｄ１、Ｄ２は、一端部が被押圧部材３の封止部材３２に連結しており且つ被押圧部材３の封止部材３２から離れる方向に延在している。本実施形態では弾性体Ｄ１、Ｄ２は板状であり、一例として板ばねである。なお、本実施形態では弾性体の数を二つとして説明するが、これに限らず、三つ以上あってもよく、複数であればよい。 Further, the electronic module 6 has elastic bodies D1 and D2. The elastic bodies D1 and D2 are connected at one end to the sealing member 32 of the pressed member 3 and the sealing member 32 of the pressed member 3. It extends in the direction away from. In this embodiment, the elastic bodies D1 and D2 are plate-like, and are leaf springs as an example. In the present embodiment, the number of elastic bodies is described as two. However, the number is not limited to this, and there may be three or more elastic bodies.
　更に電源装置１は、図１及び図２に示すように、被押圧部材３が設けられている位置とは異なる位置において弾性体Ｄ１、Ｄ２を筐体に係止している係止部材Ｓ１、Ｓ２を備える。本実施形態に係る係止部材Ｓ１、Ｓ２は一例としてねじであり、ねじの締結力によって弾性体Ｄ１、Ｄ２を筐体２に押し付けることによって、被押圧部材３が筐体２に押し付けられた状態で固定される。これにより、基板３１が筐体２に固定される。 Further, as shown in FIGS. 1 and 2, the power supply device 1 includes a locking member S <b> 1 that locks the elastic bodies D <b> 1 and D <b> 2 to the housing at a position different from the position where the pressed member 3 is provided. S2 is provided. The locking members S1 and S2 according to the present embodiment are screws as an example, and the pressed member 3 is pressed against the casing 2 by pressing the elastic bodies D1 and D2 against the casing 2 by the fastening force of the screws. It is fixed with. Thereby, the substrate 31 is fixed to the housing 2.
　更に電源装置１は、基板３１の裏面と筐体２との間に設けられている放熱材５を備える。この放熱材５は、例えばグリスまたは放熱シートなどである。本実施形態では一例として放熱材５はグリスであるものとして以下、説明する。 Furthermore, the power supply device 1 includes a heat dissipation material 5 provided between the back surface of the substrate 31 and the housing 2. The heat dissipation material 5 is, for example, grease or a heat dissipation sheet. In the present embodiment, as an example, the heat radiating material 5 will be described below as grease.
　また、図１に示すように、基板３１は、裏面に金属製の放熱板３１１を有する。この構成により、基板３１の裏面を構成する層が金属製の放熱板３１１であるので、放熱板３１１から放熱材５を介して筐体２に、基板３１で発生した熱を効率的に逃がすことができる。 Further, as shown in FIG. 1, the substrate 31 has a metal heat sink 311 on the back surface. With this configuration, since the layer constituting the back surface of the substrate 31 is the metal heat radiating plate 311, the heat generated in the substrate 31 is efficiently released from the heat radiating plate 311 to the housing 2 through the heat radiating material 5. Can do.
　図２に示すように、電子モジュール６の電極Ｅ１は、変圧器４の端子Ｔ１と中継子Ｒ１を介して連結している。ここで電極Ｅ１、中継子Ｒ１及び端子Ｔ１は導電性を有する。これにより、基板３１の電極Ｅ１は、中継子Ｒ１及び端子Ｔ１を介して変圧器４に電気的に接続している。また中継子Ｒ１は弾性を有する。このように中継子Ｒ１が弾性を有することにより、中継子Ｒ１を電極Ｅ１及び端子Ｔ１に連結する前の製造工程において、端子Ｔ１と電極Ｅ１の位置が本来あるべき位置から基板３１に対して水平または垂直にずれたとしても、端子Ｔ１と電極Ｅ１に挟まった中継子が、弾性力によって戻る力で端子Ｔ１と電極Ｅ１の両方を押すので、中継子Ｒ１が端子Ｔ１と電極Ｅ１に連結することができる。 As shown in FIG. 2, the electrode E1 of the electronic module 6 is connected to the terminal T1 of the transformer 4 via the relay R1. Here, the electrode E1, the relay element R1, and the terminal T1 have conductivity. Thereby, the electrode E1 of the board | substrate 31 is electrically connected to the transformer 4 via the relay element R1 and the terminal T1. Further, the relay element R1 has elasticity. Since the relay element R1 has elasticity as described above, the positions of the terminal T1 and the electrode E1 are horizontal with respect to the substrate 31 from the position where the terminal T1 and the electrode E1 should originally be in the manufacturing process before connecting the relay element R1 to the electrode E1 and the terminal T1. Or even if it is displaced vertically, the relay element sandwiched between the terminal T1 and the electrode E1 pushes both the terminal T1 and the electrode E1 with the force of returning by the elastic force, so that the relay element R1 is connected to the terminal T1 and the electrode E1. Can do.
　また電子モジュール６の電極Ｅ２は、変圧器４の端子Ｔ２と中継子Ｒ２を介して連結している。ここで電極Ｅ２、中継子Ｒ２及び端子Ｔ２は導電性を有する。これにより、基板３１の電極Ｅ２は、中継子Ｒ２及び端子Ｔ２を介して変圧器４に電気的に接続している。また中継子Ｒ２は弾性を有する。このように中継子Ｒ２が弾性を有することにより、中継子Ｒ２を電極Ｅ２及び端子Ｔ２に連結する前の製造工程において、端子Ｔ２と電極Ｅ２の位置が本来あるべき位置から基板３１に対して水平または垂直にずれたとしても、端子Ｔ２と電極Ｅ２に挟まった中継子が、弾性力によって戻る力で端子Ｔ２と電極Ｅ２の両方を押すので、中継子Ｒ２が端子Ｔ２と電極Ｅ２に連結することができる。 Also, the electrode E2 of the electronic module 6 is connected to the terminal T2 of the transformer 4 via the relay element R2. Here, the electrode E2, the relay R2 and the terminal T2 have conductivity. Thereby, the electrode E2 of the board | substrate 31 is electrically connected to the transformer 4 via the relay element R2 and the terminal T2. Further, the relay element R2 has elasticity. Since the relay R2 has elasticity as described above, the positions of the terminal T2 and the electrode E2 are horizontal with respect to the substrate 31 from the position where the terminal T2 and the electrode E2 should originally be in the manufacturing process before connecting the relay R2 to the electrode E2 and the terminal T2. Or, even if they are displaced vertically, the relay element sandwiched between the terminal T2 and the electrode E2 pushes both the terminal T2 and the electrode E2 with the force of returning by the elastic force, so that the relay element R2 is connected to the terminal T2 and the electrode E2. Can do.
　中継子Ｒ１、Ｒ２同士、電極Ｅ１、Ｅ２同士、端子Ｔ１、Ｔ２同士は同様の構成を有するので、以下代表して中継子Ｒ１、電極Ｅ１、端子Ｔ１の構成について説明する。 Since the relay elements R1 and R2, the electrodes E1 and E2, and the terminals T1 and T2 have the same configuration, the configuration of the relay element R1, the electrode E1, and the terminal T1 will be described below as a representative.
　図３に示すように、基板３１に設けられた電極Ｅ１は、端部の側方に設けられた肩部Ｅ１１、Ｅ１２と、端部の中央に設けられた中央部Ｅ１３と、を有する。 As shown in FIG. 3, the electrode E1 provided on the substrate 31 has shoulders E11 and E12 provided on the side of the end and a center E13 provided in the center of the end.
　図４に示すように、中継子Ｒ１は、縦断面視において、電極Ｅ１と端子Ｔ１との間でＵ字状に湾曲している。ここでは一例として、中継子Ｒ１は、縦断面視において、基板３１に近づく方向に凸になるようにＵ字状に湾曲している。縦断面視とは、基板３１に対して垂直な面で断ち切った切り口である。 As shown in FIG. 4, the relay element R1 is curved in a U shape between the electrode E1 and the terminal T1 in a longitudinal sectional view. Here, as an example, the relay element R1 is curved in a U shape so as to be convex in a direction approaching the substrate 31 in a longitudinal sectional view. The longitudinal sectional view is a cut surface cut by a plane perpendicular to the substrate 31.
　この構成により、中継子Ｒ１を電極Ｅ１及び端子Ｔ１に連結する前の製造工程において、電極Ｅ１または端子Ｔ１の位置が本来あるべき位置から基板３１に対して水平または垂直にずれたとしても、中継子Ｒ１がＵ字状に湾曲していることにより、弾性力によって中継子Ｒ１の一端部が電極Ｅ１に押し付けられ中継子Ｒ１の他端部が端子Ｔ１に押し付けられて中継子Ｒ１が電極Ｅ１及び端子Ｔ１の間に挟まった状態で固定される。このようにして、電極Ｅ１および端子Ｔ１の高さ方向のずれ及び水平方向のずれを吸収することができる。 With this configuration, even if the position of the electrode E1 or the terminal T1 is deviated horizontally or vertically with respect to the substrate 31 in the manufacturing process before connecting the relay R1 to the electrode E1 and the terminal T1, the relay is performed. Since the child R1 is bent in a U shape, one end of the relay R1 is pressed against the electrode E1 by the elastic force, the other end of the relay R1 is pressed against the terminal T1, and the relay R1 is connected to the electrode E1. It is fixed while sandwiched between the terminals T1. In this way, the displacement in the height direction and the displacement in the horizontal direction of the electrode E1 and the terminal T1 can be absorbed.
　更に図４に示すように、中継子Ｒ１は、縦断面視において、一端部が電極Ｅ１の端部を挟むようにＵ字状に湾曲し、且つ他端部が端子Ｔ１の端部を挟むようにＵ字状に湾曲している。ここでは一例として、中継子Ｒ１の一端部及び他端部は、基板３１から遠ざかる方向に凸になるようにＵ字状に湾曲している。 Further, as shown in FIG. 4, the relay element R1 is curved in a U shape so that one end portion sandwiches the end portion of the electrode E1 and the other end portion sandwiches the end portion of the terminal T1 in the longitudinal sectional view. It is curved in a U shape. Here, as an example, one end and the other end of the relay element R1 are curved in a U shape so as to protrude in a direction away from the substrate 31.
　この構成により、中継子Ｒ１を電極Ｅ１及び端子Ｔ１に連結する前の製造工程において、電極Ｅ１または端子Ｔ１の位置が本来あるべき位置から基板３１に対して水平または垂直にずれたとしても、中継子Ｒ１の一端部が電極Ｅ１を挟むことにより電極Ｅ１に固定され、中継子Ｒ１の他端部が端子Ｔ１を挟むことにより端子Ｔ１に固定することができる。このようにして、電極Ｅ１および端子Ｔ１の高さ方向のずれ及び水平方向のずれを吸収することができる。 With this configuration, even if the position of the electrode E1 or the terminal T1 is deviated horizontally or vertically with respect to the substrate 31 in the manufacturing process before connecting the relay R1 to the electrode E1 and the terminal T1, the relay is performed. One end of the child R1 can be fixed to the electrode E1 by sandwiching the electrode E1, and the other end of the relay R1 can be fixed to the terminal T1 by sandwiching the terminal T1. In this way, the displacement in the height direction and the displacement in the horizontal direction of the electrode E1 and the terminal T1 can be absorbed.
　より詳細には、図３に示すように、基板３１に設けられた電極Ｅ１は、端部の側方に設けられた肩部Ｅ１１、Ｅ１２と、端部の中央に設けられた中央部Ｅ１３と、を有する。一方、中継子Ｒ１の一端部は、複数（ここでは一例として三つ）に分岐しており、当該複数（ここでは一例として三つ）の分岐のうち第１の分岐部Ｒ１１の外面が電極Ｅ１の端部の中央部Ｅ１３と溶接により固定されている。ここで第１の分岐部Ｒ１１は、一例として三つある分岐のうち中央に位置する分岐である。そして図３に示すように、複数（ここでは一例として三つ）の分岐のうち第２の分岐部Ｒ１２、Ｒ１３がそれぞれ対応する電極Ｅ１の肩部Ｅ１１、Ｅ１２を挟むようにＵ字状に湾曲している。 More specifically, as shown in FIG. 3, the electrode E1 provided on the substrate 31 includes shoulders E11 and E12 provided on the side of the end, and a center E13 provided on the center of the end. Have. On the other hand, one end of the relay element R1 is branched into a plurality (here, three as an example), and the outer surface of the first branch portion R11 is the electrode E1 among the plurality of (here, three as an example) branches. It is fixed to the central portion E13 of the end portion by welding. Here, the first branch portion R11 is a branch located at the center among three branches as an example. Then, as shown in FIG. 3, the second branch portions R12 and R13 of a plurality of (here, three as an example) branches are curved in a U shape so as to sandwich the shoulder portions E11 and E12 of the corresponding electrodes E1, respectively. is doing.
　この構成により、中継子Ｒ１を電極Ｅ１及び端子Ｔ１に連結する前の製造工程において、電極Ｅ１または端子Ｔ１の位置が本来あるべき位置から基板３１に対して水平または垂直にずれたとしても、中継子Ｒ１の第２の分岐部Ｒ１２、Ｒ１３が電極Ｅ１の肩部Ｅ１１、Ｅ１２を挟むことにより中継子Ｒ１が電極Ｅ１に固定される。このようにして、電極Ｅ１の高さ方向及び水平方向のずれを吸収することができる。更に中継子Ｒ１の第２の分岐部Ｒ１２、Ｒ１３が電極Ｅ１の肩部Ｅ１１、Ｅ１２を挟んでいるので、中継子Ｒ１の電極Ｅ１への固定を強化することができる。 With this configuration, even if the position of the electrode E1 or the terminal T1 is deviated horizontally or vertically with respect to the substrate 31 in the manufacturing process before connecting the relay R1 to the electrode E1 and the terminal T1, the relay The relay R1 is fixed to the electrode E1 by the second branch portions R12, R13 of the child R1 sandwiching the shoulders E11, E12 of the electrode E1. In this way, the deviation in the height direction and the horizontal direction of the electrode E1 can be absorbed. Furthermore, since the second branch parts R12 and R13 of the relay element R1 sandwich the shoulder parts E11 and E12 of the electrode E1, the fixing of the relay element R1 to the electrode E1 can be strengthened.
　一方、図３に示すように、変圧器４に設けられた端子Ｔ１は、端部の側方に設けられた肩部Ｔ１１、Ｔ１２と、端部の中央に設けられた中央部Ｔ１３と、を有する。図３に示すように、中継子Ｒ１の他端部は、複数（ここでは一例として三つ）に分岐しており、当該複数（ここでは一例として三つ）の分岐のうち第１の分岐部Ｒ１４の外面が端子Ｔ１の端部の中央部Ｔ１３と溶接により固定されており、当該複数の分岐のうち第２の分岐部Ｒ１５、Ｒ１６がそれぞれ対応する端子Ｔ１の肩部Ｔ１１、Ｔ１２を挟むようにＵ字状に湾曲している。 On the other hand, as shown in FIG. 3, the terminal T1 provided in the transformer 4 includes shoulder portions T11 and T12 provided on the side of the end portion, and a center portion T13 provided in the center of the end portion. Have. As shown in FIG. 3, the other end of the relay element R1 is branched into a plurality (here, three as an example), and the first branch portion among the plurality of (here, three as an example) branches. The outer surface of R14 is fixed to the center portion T13 at the end of the terminal T1 by welding so that the second branch portions R15 and R16 of the plurality of branches sandwich the shoulder portions T11 and T12 of the corresponding terminal T1, respectively. It is curved in a U shape.
　この構成により、中継子Ｒ１を電極Ｅ１及び端子Ｔ１に連結する前の製造工程において、電極Ｅ１または端子Ｔ１の位置が本来あるべき位置から基板３１に対して水平または垂直にずれたとしても、中継子Ｒ１の第２の分岐部Ｒ１５、Ｒ１６が端子Ｔ１の肩部Ｔ１１、Ｔ１２を挟むことにより中継子Ｒ１が端子Ｔ１に固定される。このようにして、端子Ｔ１の高さ方向及び水平方向のずれを吸収することができる。更に中継子Ｒ１の第２の分岐部Ｒ１５、Ｒ１６が電極Ｅ１の肩部Ｔ１１、Ｔ１２を挟んでいるので、中継子Ｒ１の端子Ｔ１への固定を強化することができる。 With this configuration, even if the position of the electrode E1 or the terminal T1 is deviated horizontally or vertically with respect to the substrate 31 in the manufacturing process before connecting the relay R1 to the electrode E1 and the terminal T1, the relay is performed. The relay branch R1 is fixed to the terminal T1 by the second branch portions R15 and R16 of the child R1 sandwiching the shoulder portions T11 and T12 of the terminal T1. In this way, the shift in the height direction and the horizontal direction of the terminal T1 can be absorbed. Further, since the second branch portions R15 and R16 of the relay element R1 sandwich the shoulder portions T11 and T12 of the electrode E1, the fixing of the relay element R1 to the terminal T1 can be strengthened.
　中継子Ｒ１の剛性は例えば、電極Ｅ１の剛性より低い。この構成により、製造工程または製造後の振動等によって電極Ｅ１の基板３１に対して水平方向に位置がずれたとしても、中継子Ｒ１がたわむことにより、衝撃を吸収することができるので、電極Ｅ１が転倒するのを抑制することができる。なお、以下の各実施形態において、各中継子の剛性は一例として、当該中継子が連結される電極の剛性より低いものとして説明する。 The rigidity of the relay element R1 is lower than that of the electrode E1, for example. With this configuration, even if the position of the electrode E1 is displaced in the horizontal direction with respect to the substrate 31 due to a manufacturing process or vibration after manufacturing, the relay R1 can be bent to absorb an impact, and thus the electrode E1. Can be prevented from falling. In the following embodiments, the rigidity of each relay element will be described as an example that is lower than the rigidity of the electrode to which the relay element is connected.
　更に被押圧部材３は、弾性体Ｄ１、Ｄ２の一端部が連結され且つ基板３１を封止する封止部材３２を有する。この封止部材３２は基板３１の表面の外縁部に当接する周回状の端部を有する。この封止部材３２の周回状の端部が基板３１の表面の外縁部に押し付けられることにより、基板３１が筐体２に押し付けられている。 Further, the pressed member 3 has a sealing member 32 to which one end portions of the elastic bodies D1 and D2 are connected and seal the substrate 31. The sealing member 32 has a circular end that contacts the outer edge of the surface of the substrate 31. The substrate 31 is pressed against the housing 2 by pressing the circumferential end of the sealing member 32 against the outer edge of the surface of the substrate 31.
　この構成により、弾性体Ｄ１、Ｄ２と基板３１との間に封止部材３２が挟まれており、封止部材３２の周回上の端部が基板に当接して封止部材３２の周回上の端部全体で基板を押すので、基板３１が封止部材３２から受ける力を均一化することができ、基板３１が筐体へ及ぼす面圧を均一化することができる。これにより、基板３１に局所的に大きな応力がかかることを防ぐことができる。 With this configuration, the sealing member 32 is sandwiched between the elastic bodies D <b> 1 and D <b> 2 and the substrate 31, and the end portion on the circumference of the sealing member 32 abuts on the substrate and the circumference of the sealing member 32 is increased. Since the substrate is pushed by the entire end portion, the force that the substrate 31 receives from the sealing member 32 can be made uniform, and the surface pressure exerted on the housing by the substrate 31 can be made uniform. Thereby, it is possible to prevent a large stress from being applied locally to the substrate 31.
　すなわち、弾性体Ｄ１、Ｄ２が筐体２に係止される途中の段階において、係止部材Ｓ１、Ｓ２による係止力を弾性体Ｄ１、Ｄ２が緩和し、当該緩和した係止力に基づく押し付け力によって封止部材３２が押され、これに伴い基板３１が封止部材３２によって押されるので、基板３１にかかる応力を緩和することができる。これにより、弾性体Ｄ１、Ｄ２が筐体２に係止される途中の段階において、基板３１は筐体２に向かって少しずつ押される。このため、放熱材５が基板３１の裏面の端まで広がるまで基板３１にかかる力を抑えることができるので、係止中に基板３１が上向きに反るのを緩和することができる。 That is, in a stage where the elastic bodies D1 and D2 are locked to the housing 2, the elastic bodies D1 and D2 relax the locking force by the locking members S1 and S2, and the pressing is performed based on the relaxed locking force. Since the sealing member 32 is pushed by the force and the substrate 31 is pushed by the sealing member 32 accordingly, the stress applied to the substrate 31 can be relaxed. As a result, the substrate 31 is pushed toward the housing 2 little by little while the elastic bodies D1 and D2 are being locked to the housing 2. For this reason, since the force applied to the substrate 31 can be suppressed until the heat radiating material 5 spreads to the end of the back surface of the substrate 31, the substrate 31 can be prevented from warping upward during locking.
　以下、弾性体Ｄ１及びＤ２は同様の構成を有するので、代表して弾性体Ｄ１について説明する。 Hereinafter, since the elastic bodies D1 and D2 have the same configuration, the elastic body D1 will be described as a representative.
　図５に示すように、弾性体Ｄ１には、貫通孔Ｈ１が設けられている。図２に示すように係止部材Ｓ１は、この貫通孔Ｈ１に挿通された状態で弾性体Ｄ１を筐体２に係止している。弾性体Ｄ１は、貫通孔Ｈ１の周りに間隔を空けてＵ字状の切り欠きＭ１が設けられている。なお同様に、弾性体Ｄ２にも、貫通孔（図示せず）の周りに間隔を空けてＵ字状の切り欠きＭ２が設けられている。このＵ字状の切り欠きＭ１のうち、Ｕ字の底辺部分を底辺部Ｂ１といい、Ｕ字の上辺部分を上辺部Ｕ１１、Ｕ１２という。弾性体Ｄ１におけるＵ字状の切り欠きＭ１の底辺部Ｂ１側の端部が被押圧部材３に連結されている。これにより、このＵ字状の切り欠きＭ１の底辺部Ｂ１が、当該切り欠きの上辺部Ｕ１１、Ｕ１２よりも被押圧部材側に位置するようにすることができる。 As shown in FIG. 5, the elastic body D1 is provided with a through hole H1. As shown in FIG. 2, the locking member S <b> 1 locks the elastic body D <b> 1 to the housing 2 while being inserted through the through hole H <b> 1. The elastic body D1 is provided with a U-shaped notch M1 at intervals around the through hole H1. Similarly, the elastic body D2 is also provided with a U-shaped notch M2 at intervals around a through hole (not shown). Of the U-shaped cutout M1, the bottom portion of the U shape is referred to as a bottom portion B1, and the top portion of the U shape is referred to as top portions U11 and U12. An end of the U-shaped cutout M1 on the bottom side B1 side of the elastic body D1 is connected to the pressed member 3. Thereby, the bottom side B1 of the U-shaped cutout M1 can be positioned closer to the pressed member than the top sides U11 and U12 of the cutout.
　この構成により、係止部材Ｓ１（ここでは一例としてねじ）によって弾性体Ｄ１が押された力が、一度、当該切り欠きの上辺部Ｕ１１、Ｕ１２側の端部を介して、切り欠きＭ１の底辺部Ｂ１側の端部に伝わる。これにより、弾性体Ｄ１の大きさを抑えつつ、弾性体Ｄ１において力が伝わる経路を長くすることができるので、この長くなった経路分、力を吸収してやわらげるので、被押圧部材３を下向きに押さえる力を緩和することができる。これにより、基板３１の端部が下向きに押される力を緩和することができるので、基板３１に局所的に大きな応力がかかることを抑制することができる。 With this configuration, the force with which the elastic body D1 is pushed by the locking member S1 (here, a screw as an example) is once applied to the bottom of the notch M1 via the upper side U11 and U12 side ends of the notch. It is transmitted to the end on the part B1 side. As a result, it is possible to lengthen the path through which the force is transmitted in the elastic body D1 while suppressing the size of the elastic body D1, so the force is absorbed and softened by this lengthened path. It is possible to relieve the force of pressing. Thereby, since the force by which the edge part of the board | substrate 31 is pushed downward can be relieved, it can suppress that a big stress is locally applied to the board | substrate 31. FIG.
　＜電子モジュールの固定方法＞
　続いて本実施形態に係る電子モジュール６の固定方法について説明する。まず、電子モジュール６の固定を行う作業者は、放熱材５が基板３１の裏面の中央を含む位置に配置されるように当該放熱材５を塗布する。これにより、図６に示すように係止部材Ｓ１、Ｓ２で固定される前は、放熱材５の一例であるグリスは基板３１の裏面の中央に対応する筐体２の位置に塗布されて配置される。図６に示すように係止部材Ｓ１、Ｓ２で固定される前は、弾性体Ｄ１、Ｄ２は、筐体２の基板３１と対向する面に対して平行である。 <Method of fixing electronic module>
Then, the fixing method of the electronic module 6 which concerns on this embodiment is demonstrated. First, an operator who fixes the electronic module 6 applies the heat dissipation material 5 so that the heat dissipation material 5 is disposed at a position including the center of the back surface of the substrate 31. Thus, as shown in FIG. 6, before being fixed by the locking members S <b> 1 and S <b> 2, the grease that is an example of the heat radiating material 5 is applied and arranged at the position of the housing 2 corresponding to the center of the back surface of the substrate 31. Is done. As shown in FIG. 6, before being fixed by the locking members S <b> 1 and S <b> 2, the elastic bodies D <b> 1 and D <b> 2 are parallel to the surface of the housing 2 that faces the substrate 31.
　次に当該作業者は、被押圧部材３が設けられている位置とは異なる位置において弾性体Ｄ１、Ｄ２を筐体２に係止部材Ｓ１、Ｓ２によって係止する。これにより、例えば図７に示すように、係止部材Ｓ１、Ｓ２の一例であるねじが回転しながら筐体２に近づく方向に進展するとともに、このねじによる締結力によって弾性体Ｄ１、Ｄ２が筐体２に近づく方向に押し込まれる。これにより、弾性体Ｄ１、Ｄ２の被押圧部材３と連結している端部と比べて、弾性体Ｄ１、Ｄ２の被押圧部材３と連結している端部とは反対の端部の位置が筐体２に近づき、弾性体Ｄ１、Ｄ２は、筐体２の基板３１と対向する面に対して傾斜する。 Next, the worker locks the elastic bodies D1 and D2 to the housing 2 by the locking members S1 and S2 at a position different from the position where the pressed member 3 is provided. Accordingly, as shown in FIG. 7, for example, screws as an example of the locking members S1 and S2 advance in a direction approaching the housing 2 while rotating, and the elastic bodies D1 and D2 are moved to the housing by the fastening force of the screws. It is pushed in the direction approaching the body 2. Thereby, compared with the edge part connected with the to-be-pressed member 3 of elastic body D1, D2, the position of the edge part opposite to the edge part connected with the to-be-pressed member 3 of elastic body D1, D2 is located. Approaching the housing | casing 2, the elastic bodies D1 and D2 incline with respect to the surface facing the board | substrate 31 of the housing | casing 2. As shown in FIG.
　この係止部材Ｓ１、Ｓ２によって係止する工程中に、基板３１が筐体２に方向に押されることにより、放熱材５が徐々に周りに延びていく。本実施形態では、当該封止部材３２の周回状の端部が位置する水平位置（例えば図７のｘ１またはｘ２）まで放熱材５が到達する前の期間において、基板３１に対して許容値以下の押し付け力がかかるように弾性体Ｄ１、Ｄ２の弾性係数または放熱材５の硬さを表すちょう度が設定されている。この許容値は予め設定されている。 During the process of locking by the locking members S1 and S2, the heat dissipation material 5 gradually extends around the substrate 31 by being pushed toward the housing 2 in the direction. In the present embodiment, the substrate 31 is allowed in a period before the heat radiating material 5 reaches a horizontal position (for example, x 1 or x 2 in FIG. 7) where the circular end of the sealing member 32 is located. A consistency indicating the elasticity coefficient of the elastic bodies D1 and D2 or the hardness of the heat dissipating material 5 is set so that a pressing force equal to or less than the value is applied. This allowable value is set in advance.
　この構成により、基板３１の裏面の中央に対応する筐体２の位置に限局して放熱材５が存在するときに、基板３１に対して許容値を超える押し付け力がかからないので、基板３１が筐体２から離れる方向（ここでは上向き）に反るのを低減することができる。 With this configuration, when the heat dissipating material 5 is present at the position of the housing 2 corresponding to the center of the back surface of the substrate 31, no pressing force exceeding the allowable value is applied to the substrate 31. Warpage in a direction away from the body 2 (here, upward) can be reduced.
　以上のように、本発明の一態様に係る電源装置１は、筐体２と、筐体２に対向する面に基板３１を有し且つ筐体２の上に設けられた被押圧部材３とを備える。更に電源装置１は、一端部が被押圧部材３に連結しており且つ被押圧部材３から離れる方向に延在している弾性体Ｄ１，Ｄ２を備える。更に電源装置１は、被押圧部材３が設けられている位置とは異なる位置において弾性体を前記筐体に係止している係止部材Ｓ１、Ｓ２と、基板３１の裏面と筐体２との間に設けられている放熱材５とを備える。 As described above, the power supply device 1 according to one embodiment of the present invention includes the housing 2 and the pressed member 3 that has the substrate 31 on the surface facing the housing 2 and is provided on the housing 2. Is provided. Furthermore, the power supply device 1 includes elastic bodies D1 and D2 having one end connected to the pressed member 3 and extending in a direction away from the pressed member 3. Furthermore, the power supply device 1 includes locking members S1 and S2 that lock the elastic body to the housing at a position different from the position where the pressed member 3 is provided, the back surface of the substrate 31, and the housing 2. And a heat dissipating material 5 provided between the two.
　この構成により、弾性体Ｄ１、Ｄ２が筐体２に係止される途中の段階において、係止部材Ｓ１、Ｓ２による係止力を弾性体Ｄ１、Ｄ２が緩和し、当該緩和した係止力に基づく押し付け力によって被押圧部材３が押され、これに伴い被押圧部材３に含まれる基板３１が押されるので、基板３１にかかる応力を緩和することができる。これにより、弾性体Ｄ１、Ｄ２が筐体２に係止される途中の段階において、基板３１は筐体２に向かって少しずつ押される。このため、基板３１が被押圧部材３によって押されている位置まで放熱材５が広がるまで基板３１にかかる力を抑えることができるので、係止中に基板３１が筐体２から離れる方向（ここでは上向き）に反るのを緩和することができる。 With this configuration, the elastic bodies D1 and D2 relax the locking force by the locking members S1 and S2 in the middle of the locking of the elastic bodies D1 and D2 to the housing 2, and the relaxed locking force The pressed member 3 is pressed by the pressing force based on this, and the substrate 31 included in the pressed member 3 is pressed accordingly, so that the stress applied to the substrate 31 can be relaxed. As a result, the substrate 31 is pushed toward the housing 2 little by little while the elastic bodies D1 and D2 are being locked to the housing 2. For this reason, since the force applied to the substrate 31 can be suppressed until the heat dissipation material 5 spreads to the position where the substrate 31 is pressed by the pressed member 3, the direction in which the substrate 31 moves away from the housing 2 during locking (here Then, it can alleviate upward warping.
　なお、上述した各実施形態の記載及び図面の開示は、請求の範囲に記載された発明を説明するための一例に過ぎず、上述した各実施の形態の記載又は図面の開示によって請求の範囲に記載された発明が限定されることはない。また、出願当初の請求項の記載はあくまでも一例であり、明細書、図面等の記載に基づき、請求項の記載を適宜変更することもできる。 The description of each embodiment and the disclosure of the drawings are merely examples for explaining the invention described in the scope of claims, and the claims are disclosed by the description of each embodiment or the disclosure of the drawings. The described invention is not limited. The description of the claims at the beginning of the application is merely an example, and the description of the claims can be appropriately changed based on the description, drawings, and the like.
１　電源装置
２　筐体
３　被押圧部材
３１　基板
３１１　放熱板
３２　封止部材
５　放熱材
６　電子モジュール
Ｂ１　底辺部
Ｄ１、Ｄ２　弾性体
Ｅ１、Ｅ２　電極
Ｅ１１、Ｅ１２　肩部
Ｈ１　貫通孔
Ｍ１、Ｍ２　切り欠き
Ｒ１、Ｒ２　中継子
Ｒ１４　第１の分岐部
Ｒ１５、Ｒ１６　第２の分岐部
Ｓ１　係止部材
Ｔ１、Ｔ２　端子
Ｔ１１、Ｔ１２　肩部
Ｕ１１、Ｕ１２　上辺部 DESCRIPTION OF SYMBOLS 1 Power supply device 2 Housing | casing 3 Pressed member 31 Substrate 311 Heat sink 32 Sealing member 5 Heat sink 6 Electronic module B1 Base part D1, D2 Elastic body E1, E2 Electrode E11, E12 Shoulder part H1 Through-hole M1, M2 Notch R1, R2 Relay element R14 First branch part R15, R16 Second branch part S1 Locking member T1, T2 Terminals T11, T12 Shoulder parts U11, U12 Upper side part

Claims (8)

  1. 　筐体と、
    　前記筐体に対向する面に基板を有し且つ前記筐体の上に設けられた被押圧部材と、
    　一端部が前記被押圧部材に連結しており且つ前記被押圧部材から離れる方向に延在している複数の弾性体と、
    　前記被押圧部材が設けられている位置とは異なる位置において前記弾性体を前記筐体に係止している係止部材と、
    　前記基板の裏面と前記筐体との間に設けられている放熱材と、
    　を備える電源装置。      A housing,
    A pressed member having a substrate on the surface facing the housing and provided on the housing;
    A plurality of elastic bodies having one end connected to the pressed member and extending in a direction away from the pressed member;
    A locking member for locking the elastic body to the housing at a position different from the position where the pressed member is provided;
    A heat dissipating material provided between the back surface of the substrate and the housing;
    A power supply device comprising:
  2. 　前記基板は、裏面に金属製の放熱板を有する請求項１に記載の電源装置。 The power supply device according to claim 1, wherein the substrate has a metal heat sink on the back surface.
  3. 　前記被押圧部材は、前記複数の弾性体の一端部が連結され且つ前記基板を封止する封止部材を有しており、当該封止部材は前記基板の表面の外縁部に当接する周回状の端部を有しており、
    　前記封止部材の周回状の端部が前記基板の表面の外縁部に押し付けられることにより、前記基板が前記筐体に押し付けられている
    請求項１または２に記載の電源装置。     The pressed member includes a sealing member that is connected to one end portions of the plurality of elastic bodies and seals the substrate, and the sealing member is a circular shape that contacts an outer edge portion of the surface of the substrate. End of the
    The power supply device according to claim 1, wherein the substrate is pressed against the casing by pressing a circumferential end of the sealing member against an outer edge portion of the surface of the substrate.
  4. 　当該封止部材の周回状の端部が位置する水平位置まで前記放熱材が到達する前の期間において、前記基板に対して許容値以下の押し付け力がかかるように前記弾性体の弾性係数または前記放熱材の硬さを表すちょう度が設定されている請求項３に記載の電源装置。 In the period before the heat radiating material reaches the horizontal position where the circular end of the sealing member is located, the elastic coefficient of the elastic body or the elastic body so that a pressing force of an allowable value or less is applied to the substrate. The power supply device according to claim 3, wherein a consistency indicating the hardness of the heat dissipating material is set.
  5. 　前記弾性体には、貫通孔が設けられており、
    　前記係止部材は、前記貫通孔に挿通された状態で前記弾性体を前記筐体に係止しており、
    　前記弾性体は、前記貫通孔の周りに間隔を空けてＵ字状の切り欠きが設けられており、
    　前記弾性体における前記Ｕ字状の切り欠きの底辺部側の端部が前記被押圧部材に連結されている請求項１から４のいずれか一項に記載の電源装置。     The elastic body is provided with a through hole,
    The locking member locks the elastic body to the housing in a state of being inserted into the through hole,
    The elastic body is provided with a U-shaped notch at intervals around the through-hole,
    5. The power supply device according to claim 1, wherein an end of the U-shaped notch on the bottom side of the elastic body is connected to the pressed member.
  6. 　前記係止部材はねじである請求項１から５のいずれか一項に記載の電源装置。 The power supply device according to any one of claims 1 to 5, wherein the locking member is a screw.
  7. 　前記弾性体は板状である
    　請求項１から６のいずれか一項に記載の電源装置。     The power supply device according to any one of claims 1 to 6, wherein the elastic body has a plate shape.
  8. 　一面に基板を有し且つ筐体の上に設けられた被押圧部材と、一端部が前記被押圧部材に連結しており且つ前記被押圧部材から離れる方向に延在している複数の弾性体と、を備える電子モジュールを固定する電子モジュール固定方法であって、
    　放熱材が前記基板の裏面の中央を含む位置に配置されるように当該放熱材を塗布する工程と、
    　前記被押圧部材が設けられている位置とは異なる位置において前記複数の弾性体を前記筐体に係止部材によって係止する工程と、
    　を有する電子モジュール固定方法。     A pressed member having a substrate on one surface and provided on the casing, and a plurality of elastic bodies having one end connected to the pressed member and extending in a direction away from the pressed member An electronic module fixing method for fixing an electronic module comprising:
    Applying the heat dissipation material so that the heat dissipation material is disposed at a position including the center of the back surface of the substrate;
    A step of locking the plurality of elastic bodies to the housing with a locking member at a position different from the position where the pressed member is provided;
    An electronic module fixing method comprising:
PCT/JP2018/009635 2018-03-13 2018-03-13 Power source device and electronic module fixing method WO2019175949A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015170825A (en) * 2014-03-10 2015-09-28 三菱マテリアル株式会社 Manufacturing method of power module substrate with radiation plate
JP2016063145A (en) * 2014-09-19 2016-04-25 三菱マテリアル株式会社 Manufacturing apparatus and manufacturing method of substrate for power module with heatsink
JP2017228630A (en) * 2016-06-22 2017-12-28 富士電機株式会社 Semiconductor device and method for manufacturing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015170825A (en) * 2014-03-10 2015-09-28 三菱マテリアル株式会社 Manufacturing method of power module substrate with radiation plate
JP2016063145A (en) * 2014-09-19 2016-04-25 三菱マテリアル株式会社 Manufacturing apparatus and manufacturing method of substrate for power module with heatsink
JP2017228630A (en) * 2016-06-22 2017-12-28 富士電機株式会社 Semiconductor device and method for manufacturing the same

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