WO2023181534A1 - 電子部品筐体 - Google Patents
電子部品筐体 Download PDFInfo
- Publication number
- WO2023181534A1 WO2023181534A1 PCT/JP2022/046605 JP2022046605W WO2023181534A1 WO 2023181534 A1 WO2023181534 A1 WO 2023181534A1 JP 2022046605 W JP2022046605 W JP 2022046605W WO 2023181534 A1 WO2023181534 A1 WO 2023181534A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- case
- screw
- block
- longitudinal direction
- electronic component
- Prior art date
Links
- 239000012530 fluid Substances 0.000 description 4
- 239000000470 constituent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
- H05K5/0047—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB
- H05K5/0052—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having a two-part housing enclosing a PCB characterized by joining features of the housing parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10151—Sensor
Definitions
- Embodiments of the present invention relate to an electronic component housing that houses electronic components such as a pressure sensor that detects fluid pressure.
- An electronic component such as a pressure sensor, includes a case as a housing, a pressure sensor unit disposed within the case, and a printed circuit board connected to the pressure sensor unit (for example, as disclosed in Japanese Patent Laid-Open No. 2003-299230). (see official bulletin)
- the case is provided to protect the electronic components placed inside the case. For example, if a case is divided into a plurality of cases and these cases are fixed using a plurality of screws, if these screws become loose, the plurality of cases will come off, making it impossible to sufficiently protect the electronic components.
- the embodiments of the present application provide an electronic component housing that can prevent screws from loosening and can prevent the case from falling off.
- the electronic component housing of this embodiment has a first surface, a second surface parallel to the first surface, a third surface perpendicular to the first surface and the second surface, and the first surface and the second surface.
- a fourth surface that is perpendicular to the second surface and parallel to the third surface, and includes a block on which an electronic component is placed, a first end and a second end, and the first end is arranged on the third surface of the block, and has a fifth surface parallel to the second surface of the block at the second end; a first screw fixed to the third surface of the block; a third end and a fourth end; the third end is disposed on the fourth surface of the block; a second case having a sixth surface parallel to the fifth surface of the first case; a second screw fixing the third end of the second case to the fourth surface of the block; a third screw for fixing the sixth surface of the second case to the fifth surface of the first case, the first screw being fixed to one side from the center in a direction intersecting the longitudinal direction of the first case. the second
- FIG. 1 is a perspective view showing an example of an electronic component according to the present embodiment.
- FIG. 2 is an exploded perspective view of FIG. 1;
- FIG. 2 is a front view of the electronic component shown in FIG. 1.
- 2 is a rear view of the electronic component shown in FIG. 1.
- FIG. FIG. 2 is a diagram schematically showing the assembly operation of FIG. 1;
- FIG. 1 to 4 show an electronic component housing according to this embodiment, and show a case where the electronic component housing is applied to, for example, a pressure sensor.
- the electronic component according to this embodiment is not limited to a pressure sensor, and can also be applied to other electronic components.
- the pressure sensor 10 has a case 11 as a housing.
- the case 11 includes, for example, a first case 12, a second case 13, a block 14, a first screw 18, a second screw 19, and a third screw 20.
- a pressure sensor unit 15, a printed circuit board 16, a connector 17, etc. are housed in the case 11.
- the first screw 18, the second screw 19, and the third screw 20 are also simply referred to as screws 18, 19, and 20.
- the block 14 is, for example, a substantially rectangular parallelepiped, and has a rectangular first surface 14a, a second surface 14b parallel to the first surface, a third surface 14c connecting the first surface 14a and the second surface, and a third surface 14c that connects the first surface 14a and the second surface. It has a fourth surface 14d parallel to the third surface 14c and two other surfaces 14e and 14f.
- the first end 12-1 of the first case 12 is fixed to the third surface 14c of the block 14 with screws 18.
- the second end 12-2 of the first case 12 has an upper surface 12e parallel to the second surface 14b of the block 14.
- the third end 13-1 of the second case 13 is fixed to the fourth surface 14d of the block 14 with screws 19.
- the fourth end 13-2 of the second case 13 has an upper surface 13e parallel to the second surface 14b of the block 14.
- the upper surface 12e of the first case 12 and the upper surface 13e of the second case 13 are fixed with screws 20.
- the screw 18 is arranged on one side with respect to the center in the direction intersecting the longitudinal direction of the first case 12, and the screw 19 is arranged on the other side with respect to the center in the direction intersecting the longitudinal direction of the first case 12.
- the screw 20 is arranged on the other side with respect to the center of the first case 12 in a direction intersecting the longitudinal direction.
- an opening 14g passing through the first surface 14a and the second surface 14b is provided at the center in the longitudinal direction of the first surface 14a and the second surface 14b of the block 14.
- a fluid to be measured is introduced into the opening 14g.
- screw holes 14h and 14i are provided on both sides of the opening 14g.
- the first surface 14a of the block 14 is arranged on the surface of a pipe through which fluid flows, and the block 14 is fixed to the surface of the pipe by a plurality of screws (not shown) that are screwed into screw holes 14h and 14i. Ru.
- the second surface 14b of the block 14 is provided with a mounting portion 14j that communicates with the opening 14g.
- the pressure sensor unit 15 is attached to this attachment portion 14j.
- the pressure sensor unit 15 includes, for example, a diaphragm (not shown) inside, a strain sensor provided on the diaphragm, and the like. The diaphragm is deformed by the pressure of the fluid introduced into the opening 14g, and the deformation of the diaphragm is detected as an electrical signal by the strain sensor.
- the configuration of the pressure sensor unit 15 can be modified in various ways.
- the pressure sensor unit 15 is electrically connected to the printed circuit board 16 by wiring (not shown).
- the printed circuit board 16 includes circuit components (not shown) that process signals supplied from the pressure sensor unit 15, and is attached to the back surface of the second case 13, for example.
- the first case 12 includes a main surface 12a, a side surface 12b, a side surface 12c, a first mounting portion 12d, and an upper surface 12e.
- the main surface 12a is, for example, rectangular, and side surfaces 12b and 12c are provided on two sides along the longitudinal direction of the main surface 12a, respectively.
- the side surface 12b and the side surface 12c are arranged perpendicularly to the main surface 12a and are parallel to each other.
- the first attachment part 12d is provided at a first end 12-1 of the main surface 12a (one end in the longitudinal direction of the main surface 12a), and as shown in FIG.
- the length L1 is longer than the width W3 in the direction intersecting the longitudinal direction of the main surface 12a (L1>W3).
- the first attachment part 12d includes a hole 12g into which the screw 18 is inserted.
- the hole 12g is arranged on one side of the longitudinal center of the first attachment part 12d. Therefore, the hole 12g is arranged on one side of the center of the width W3 in the direction intersecting the longitudinal direction of the main surface 12a.
- the upper surface 12e of the first case 12 is provided at the second end 12-2 (the other end in the longitudinal direction of the main surface 12a) of the main surface 12a, is perpendicular to the main surface 12a, and is provided on a side surface. 12b and the side surface 12c are arranged in the same direction.
- the width of the upper surface 12e is equal to the width W1 of the side surfaces 12b and 12c.
- the upper surface 12e includes a hole 12h into which the screw 20 is inserted. As shown in FIG. 3, the hole 12h is arranged on the other side from the center of the longitudinal direction of the upper surface 12e (the direction intersecting the longitudinal direction of the main surface 12a).
- an opening 12f is provided in the longitudinal center of the side surface 12b, and the connector 17 is exposed to the outside of the first case 12 through the opening 12f.
- the connector 17 is provided on the printed circuit board 16 and electrically connected to the printed circuit board 16.
- the first attachment portion 12d of the first case 12 is attached to the third surface 14c of the block 14. Specifically, the first attachment portion 12d of the first case 12 is fitted into the recess 14k provided on the third surface 14c of the block 14. The width, length, and depth of the recessed portion 14k are equal to the width, length, and thickness of the first attachment portion 12d.
- the screw 18 is inserted into the hole 12g of the first attachment part 12d.
- the screw 18 is screwed into a screw hole 14m (shown in FIG. 3) provided in the recess 14k on the third surface 14c of the block 14. Thereby, the first case 12 is attached to the block 14.
- the second case 13 includes a main surface 13a, a side surface 13b (shown in FIG. 4), a side surface 13c, a second attachment portion 13d, and an upper surface 13e.
- the main surface 13a is, for example, rectangular, and side surfaces 13b and 13c are provided on two sides along the longitudinal direction of the main surface 13a, respectively.
- the side surface 13b and the side surface 13c are arranged perpendicularly to the main surface 13a and are parallel to each other.
- the width W4 in the direction intersecting the longitudinal direction of the side surfaces 13b and 13c is narrower than the width W1 of the side surfaces 12b and 13c of the first case 12 (W4 ⁇ W1 ).
- the distance L2 between the outer surface of the side surface 13b and the outer surface of the side surface 13c of the second case 13 is equal to the distance L3 between the inner surface of the side surface 12b and the inner surface of the side surface 12c of the first case 12.
- the second attachment part 13d of the second case 13 is provided at the third end (one end in the longitudinal direction) 13-1 of the main surface 13a of the second case 13, and extends along the longitudinal direction of the main surface 13a.
- the second attachment portion 13d includes a hole 13g into which the screw 19 is inserted.
- the hole 13g is arranged on one side (the other side when viewed from the first case 12 side) from the center in the longitudinal direction of the second attachment portion 13d. Specifically, the hole 13g is arranged on the side corresponding to the hole 12h into which the screw 20 of the first case 12 is inserted from the center of the second attachment portion 13d in the longitudinal direction.
- the upper surface 13e of the second case 13 is located at a fourth end (the other end in the longitudinal direction) 13-2 of the main surface 13a, and extends in a direction intersecting the longitudinal direction of the main surface 13a. It is provided. Specifically, the upper surface 13e of the second case 13 is orthogonal to the main surface 13a, and is arranged in the same direction as the side surfaces 13b and 13c.
- the length from one longitudinal end of the main surface 13a of the second case 13 to the outer surface of the upper surface 13e is from one longitudinal end of the main surface 12a of the first case 12 to the outer surface of the upper surface 13e. It is slightly shorter (L5 ⁇ L6) than the length to the inner surface of the upper surface 12e (L6 shown in FIG. 5).
- the upper surface 13e of the second case 13 includes a screw hole 13h into which the screw 20 is inserted.
- the screw hole 13h is arranged on one side ((the other side when viewed from the first case 12 side) from the center in the direction intersecting the longitudinal direction of the main surface 12a.
- the second attachment portion 13d of the second case 13 is attached to the fourth surface 14d of the block 14.
- the second attachment portion 13d of the second case 13 is fitted into a recess 14l provided on the fourth surface 14d of the block 14.
- the width, length, and depth of the recessed portion 14l are equal to the width, length, and thickness of the second attachment portion 13d.
- the screw 19 is inserted into the hole 13g of the second attachment part 13d.
- the screw 19 is screwed into a screw hole 14n provided in the recess 14l on the fourth surface 14d of the block 14.
- the second case 13 is attached to the block 14.
- the upper surface of the upper surface 13e of the second case 13 faces the lower surface of the upper surface 12e of the first case 12 with a slight distance therebetween.
- the screws 20 are screwed into the holes 12h provided in the upper surface 12e of the first case 12 and the screw holes 13h provided in the upper surface 13e of the second case 13, and the first case 12 and the second case 13 is fixed.
- FIG. 5 schematically shows the operation when fixing the first case 12, second case 13, and block 14 with screws 18, 19, and 20.
- the length L5 from one longitudinal end of the main surface 13a of the second case 13 to the upper surface of the upper surface 13e is the length L5 from one longitudinal end of the main surface 12a of the first case 12 to the lower surface of the upper surface 12e.
- the length is slightly shorter than L6 (L5 ⁇ L6). Therefore, when the first case 12 is fixed to the block 14 with the screws 18 and the second case 13 is fixed with the screws 19, the upper surface 13e of the second case 13 and the upper surface of the first case 12 A slight gap G is created between the lower surface of the holder 12e and the lower surface of the holder 12e.
- the screws 18 and 19 are right-handed screws, and a clockwise torque A is generated in the first case 12 and a clockwise torque B is generated in the second case 13. Therefore, the frictional force between the first case 12 and the screw 18, the frictional force between the screw 18 and the screw hole 14m, the frictional force between the second case 13 and the screw 19, and the frictional force between the screw 19 and the screw hole 14n are reduced. will be increased.
- the first case 12 has the first attachment part 12d fixed to the block 14 with the screw 18, and the second case 13 has the second attachment part 13d fixed to the block 14 with the screw 19, and the second case 13 has the second attachment part 13d fixed to the block 14 with the screw 19.
- the upper surface 12e of the first case 12 and the upper surface 13e of the second case 13 are fixed to each other by screws 20, the screw 18 is arranged on one side from the center in the direction intersecting the longitudinal direction of the first case 12, and the screw 19 is , are arranged on the other side from the center in the direction intersecting the longitudinal direction of the second case, and the screws 20 are arranged on the other side from the center in the direction intersecting the longitudinal direction of the first case 12 and the third case 13.
- each of the screws 18, 19, and 20 receives torque from the first case 12 and the second case 13, so the friction force between the first case 12 and the screw 18, and the friction force between the screw 18 and the screw hole 14m.
- the frictional force between the second case 13 and the screw 19, the frictional force between the screw 19 and the screw hole 14n, and the frictional force between the first case 12, the second case 13 and the screw 20 can be increased. Therefore, the screws 18, 19, and 20 can be prevented from loosening, and the first case 12 and the second case 13 can be prevented from coming off the block 14. Therefore, it is possible to reliably protect the electronic components inside the case 11.
- the present invention is not limited to the above-mentioned embodiments as they are, and at the implementation stage, the constituent elements can be modified and embodied without departing from the spirit of the invention.
- various inventions can be formed by appropriately combining the plurality of constituent elements disclosed in each of the above embodiments. For example, some components may be deleted from all the components shown in the embodiments. Furthermore, components of different embodiments may be combined as appropriate.
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- Microelectronics & Electronic Packaging (AREA)
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- Casings For Electric Apparatus (AREA)
Abstract
Description
第1ケース12の第1端部12-1は、ブロック14の第3面14cにネジ18により固定される。第1ケース12の第2端部12-2は、ブロック14の第2面14bと平行な上面12eを有している。
図1に示すように、ブロック14の第1面14aと第2面14bの長手方向の中央には、第1面14aと第2面14bとを貫通する開口14gが設けられている。開口14g内には、測定対象としての流体が導入される。ブロック14の第1面14aで、開口14gの両側には、ネジ孔14h、14iが設けられている。
上記実施形態によれば、第1ケース12は、第1取り付け部12dがネジ18によりブロック14に固定され、第2ケース13は、第2取り付け部13dがネジ19によりブロック14に固定され、第1ケース12の上面12eと第2ケース13の上面13eは、ネジ20により互いに固定され、ネジ18は、第1ケース12の長手方向と交差する方向の中央から一方側に配置され、ネジ19は、第2ケースの長手方向と交差する方向の中央から他方側に配置され、ネジ20は、第1ケース12と第3ケース13の長手方向と交差する方向の中央から他方側に配置されている。このため、ネジ18、19、20のそれぞれは、第1ケース12と第2ケース13からトルクを受けるため、第1ケース12とネジ18との摩擦力、ネジ18とネジ孔14mとの摩擦力、第2ケース13とネジ19との摩擦力、ネジ19とネジ孔14nとの摩擦力、及び第1ケース12、第2ケース13とネジ20との摩擦力を増加させることができる。したがって、ネジ18、19、20の緩みを防止することができ、第1ケース12、第2ケース13がブロック14から外れることを防止できる。よって、ケース11内の電子部品を確実に保護することが可能である。
Claims (7)
- 第1面と、前記第1面と平行する第2面と、前記第1面及び前記第2面と直交する第3面と、前記第1面及び前記第2面と直交し、前記第3面と平行な第4面と、を有し、電子部品が配置されるブロックと、
第1端部と第2端部とを含み、前記第1端部が前記ブロックの前記第3面に配置され、前記第2端部に前記ブロックの前記第2面に平行な第5面を有する第1ケースと、
前記第1ケースの前記第1端部を前記ブロックの前記第3面に固定する第1ネジと、
第3端部と第4端部とを含み、前記第3端部が前記ブロックの前記第4面に配置され、前記第4端部に前記第1ケースの前記第5面に平行な第6面を有する第2ケースと、
前記第2ケースの前記第3端部を前記ブロックの前記第4面に固定する第2ネジと、
前記第2ケースの前記第6面を前記第1ケースの前記第5面に固定する第3ネジと、
を具備し、
前記第1ネジは、前記第1ケースの長手方向と交差する方向の中央より一方側に配置され、前記第2ネジは、前記第2ケースの長手方向と交差する方向の中央より他方側に配置され、前記第3ネジは、前記第1ケースの長手方向と交差する方向の中央より他方側に配置されることを特徴とする電子部品筐体。 - 前記第2ケースの前記第3端部と前記第4端部との間の長さは、前記第1ケースの前記第1端部と前記第2端部との間の長さより短いことを特徴とする請求項1に記載の電子部品筐体。
- 前記第3ネジに対する前記第1ネジの位置は、前記第1ケースに前記第1ネジに対して時計方向のトルクが印加される位置であり、前記第3ネジに対する前記第2ネジの位置は、前記第2ケースに前記第2ネジに対して時計方向のトルクが印加される位置であることを特徴とする請求項1に記載の電子部品筐体。
- 前記第1ケースは、長手方向と交差する方向の一端に設けられた第1側面と、前記長手方向と交差する方向の他端に設けられた第2側面と、を具備し、前記第1側面及び前記第2側面の長手方向の一端は、前記ブロックの前記第2面上に位置することを特徴とする請求項1に記載の電子部品筐体。
- 前記第2ケースは、長手方向と交差する方向の一端に設けられた第3側面と、前記長手方向と交差する方向の他端に設けられた第4側面と、を具備し、前記第3側面の外面は、前記ブロックの前記第2面上において、前記第1ケースの前記第1側面の内面に接触され、前記第4側面の外面は、前記ブロックの前記第2面上において、前記第1ケースの前記第2側面の内面に接触されることを特徴とする請求項4に記載の電子部品筐体。
- 前記ブロックは、前記第3面に前記第1ケースの前記第1端部を収容する第1凹部を具備することを特徴とする請求項1に記載の電子部品筐体。
- 前記ブロックは、前記第4面に前記第2ケースの前記第3端部を収容する第2凹部を具備することを特徴とする請求項1に記載の電子部品筐体。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58191674U (ja) * | 1982-06-15 | 1983-12-20 | 松下電器産業株式会社 | セツト脚装置 |
JPS6155406U (ja) * | 1984-09-13 | 1986-04-14 | ||
JPS62142881U (ja) * | 1986-02-28 | 1987-09-09 | ||
JPH0590985U (ja) * | 1992-05-18 | 1993-12-10 | 株式会社東芝 | 電子機器の筐体構造 |
-
2022
- 2022-12-19 KR KR1020247030451A patent/KR20240142573A/ko unknown
- 2022-12-19 WO PCT/JP2022/046605 patent/WO2023181534A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58191674U (ja) * | 1982-06-15 | 1983-12-20 | 松下電器産業株式会社 | セツト脚装置 |
JPS6155406U (ja) * | 1984-09-13 | 1986-04-14 | ||
JPS62142881U (ja) * | 1986-02-28 | 1987-09-09 | ||
JPH0590985U (ja) * | 1992-05-18 | 1993-12-10 | 株式会社東芝 | 電子機器の筐体構造 |
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