WO2024142339A1 - Dispositif de commande électronique - Google Patents

Dispositif de commande électronique Download PDF

Info

Publication number
WO2024142339A1
WO2024142339A1 PCT/JP2022/048430 JP2022048430W WO2024142339A1 WO 2024142339 A1 WO2024142339 A1 WO 2024142339A1 JP 2022048430 W JP2022048430 W JP 2022048430W WO 2024142339 A1 WO2024142339 A1 WO 2024142339A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
control device
electronic control
housing
cylindrical portion
Prior art date
Application number
PCT/JP2022/048430
Other languages
English (en)
Japanese (ja)
Inventor
慶仁 渡会
Original Assignee
日立Astemo株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日立Astemo株式会社 filed Critical 日立Astemo株式会社
Priority to PCT/JP2022/048430 priority Critical patent/WO2024142339A1/fr
Publication of WO2024142339A1 publication Critical patent/WO2024142339A1/fr

Links

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
    • H05K5/06—Hermetically-sealed casings

Definitions

  • Patent Documents 1 and 2, etc. Electronic control devices that are installed inside engine compartments and the like and that use breathing filters are known.
  • an electronic control device includes a circuit board, a housing that houses the circuit board, a filter membrane attached to the housing, and a resin cap that covers the filter membrane, the housing has a tubular portion that is recessed on the inner surface relative to the main body and protrudes outward and has a groove on the outer circumferential surface, the filter membrane is attached to the end face of the tubular portion so as to cover an air hole provided on the end face of the tubular portion, and the cap has a protrusion on its inner circumferential surface and is fitted over the tubular portion so that the protrusion and the groove engage with each other to fix the cap to the tubular portion.
  • the number of parts in the breathing filter is reduced, the assembly structure is simple, and the breathing filter can be easily assembled.
  • FIG. 1 is a perspective view showing a state in which high-pressure water collides with a breathing filter of an electronic control device according to a first embodiment of the present invention
  • FIG. 13 is a perspective view showing a state in which high-pressure water hits a breathing filter according to a comparative example.
  • FIG. 11 is a perspective view of an electronic control device according to a second embodiment of the present invention, as viewed from the base side;
  • FIG. 12 is an enlarged view of a portion XII in FIG. 11 showing the appearance of a cylindrical portion of a housing of an electronic control device according to a second embodiment of the present invention.
  • 13 is a cross-sectional view taken along line XIII-XIII in FIG. FIG.
  • FIG. 13 is an explanatory diagram of a procedure for attaching a cap of a breathing filter of a control device according to a fourth embodiment of the present invention
  • FIG. 13 is an explanatory diagram of a procedure for attaching a cap of a breathing filter of a control device according to a fourth embodiment of the present invention
  • FIG. 13 is an explanatory diagram of a procedure for attaching a cap of a breathing filter of a control device according to a fourth embodiment of the present invention
  • FIG. 13 is an explanatory diagram of a procedure for attaching a cap of a breathing filter of a control device according to a fourth embodiment of the present invention
  • FIG. 13 is a bottom view showing the inner structure of the cap of the breathing filter of the electronic control device according to the fifth embodiment of the present invention.
  • FIG. 13 is a perspective view showing an external appearance of a cylindrical portion of a housing of an electronic control device according to a fifth embodiment of the present invention.
  • FIG. 13 is a perspective view showing the inner structure of a cap of a breathing filter of an electronic control device according to a sixth embodiment of the present invention;
  • FIG. 13 is a cross-sectional view of a breathing filter of an electronic control device according to a sixth embodiment of the present invention.
  • FIG. 13 is an exploded view of a cylindrical portion of a housing of an electronic control device according to a seventh embodiment of the present invention and a cap of a breathing filter.
  • FIG. 13 is a perspective view of an electronic control device according to a seventh embodiment of the present invention;
  • FIG. 13 is a perspective view of an electronic control device according to a seventh embodiment of the present invention;
  • FIG. 13 is a perspective view showing an external appearance of a cylindrical portion of a housing of an electronic control device according to a fifth embodiment of the present invention.
  • FIG. 13 is a perspective
  • FIG. 13 is a perspective view showing the inner structure of a cap of a breathing filter of an electronic control device according to an eighth embodiment of the present invention.
  • FIG. 13 is an enlarged view of a main portion of a cap of a breathing filter of an electronic control device according to an eighth embodiment of the present invention.
  • Fig. 3A is an enlarged view of part III in Fig. 2, showing the appearance of the cylindrical part of the housing, and Fig. 3B is a plan view of the cylindrical part.
  • Fig. 4A is a perspective view showing the appearance of the cylindrical part with the filter membrane attached, and Fig. 4B is a cross-sectional view taken along line IV-IV in Fig. 4A.
  • elements that are the same as or correspond to those in the previously mentioned drawings are given the same reference numerals as those in the previously mentioned drawings, and their explanations will be omitted.
  • the main body section 21 of the cover 20 has a U-shaped step region 29 that protrudes outward from the inside of the housing so as to surround the periphery of the cylindrical section 22 (FIGS. 1 and 2), and this step region 29 increases the height of the space inside the housing, thereby improving the capacity of the housing.
  • the cylindrical portion 22 has a recess 22a in which the filter membrane 51 is placed and an air hole 22b on the end surface.
  • the recess 22a is located in the center of the end surface of the cylindrical portion 22 and is formed in a shape (circular in this embodiment) corresponding to the filter membrane 51.
  • the diameter of this circular recess 22a is slightly larger than the diameter of the filter membrane 51 and serves as a positioning guide when attaching the filter membrane 51 to the end surface of the cylindrical portion 22.
  • the diameter of the recess 22a is, of course, smaller than the diameter of the cylindrical portion 22.
  • the bottom surface of the recess 22a (the surface facing the cap 52) is a flat surface.
  • the outer edge portion 22c of the end face of the tubular portion 22 is relatively higher than the filter membrane 51, and even if high-pressure water enters through the gap between the tubular portion 22 and the cap 52, the outer edge portion 22c acts as a protective wall to protect the filter membrane 51.
  • ventilation grooves 22d are formed on the surface of the tubular portion 22, passing between the cap 52 and connecting the outside of the cap 52 to the recess 22a of the tubular portion 22.
  • the ventilation grooves 22d are provided in two locations at 180 degree intervals in the circumferential direction of the tubular portion 22.
  • the ventilation grooves 22d extend in the axial direction of the tubular portion 22 from the main body 21 of the cover 20 to the end face of the tubular portion 22, and further extend from the radial outside to the inside of the tubular portion 22 at the end face of the tubular portion 22 to connect to the recess 22a.
  • the ventilation grooves 22d and the surface of the recess 22a facing the cap 52 are flush with each other, and the wall surface of the ventilation groove 22d is smoothly connected to the surface of the recess 22a facing the cap 52 without any steps.
  • Figure 5 is an enlarged view of part V in Figure 1, showing the external appearance of the breathing filter
  • Figure 6A is a perspective view showing the inner structure of the cap
  • Figure 6B is an exploded view of the tubular part of the housing and the cap.
  • Figure 7A is an enlarged view of the protrusion on the cap
  • Figure 7B is a view showing the cap's protrusion removed from the housing
  • Figure 7C is a view showing the cap's protrusion fitted into the housing
  • Figure 8 is an enlarged view of the part of the housing where the cap's protrusion is fitted.
  • a screw mechanism is used to engage the tube portion 22 and the cap 52, and the convex portion and the groove portion (i.e., the crest 53a of the female thread 53 of the cap 52 and the valley 23a of the male thread 23 of the tube portion 22) engage with each other to fix the cap 52 to the tube portion 22.
  • the cap 52 is circular in a plan view.
  • the cover portion 54 of the cap 52 is a symmetrical trapezoid in a side view (i.e., when viewed from the radially outside), and its outer circumferential surface is inclined so that the diameter widens toward the main body portion 21a of the housing.
  • the cap 52 is also provided with a locking protrusion 55.
  • This protrusion 55 is formed on the outer peripheral surface of the cap 52 (i.e. the outer peripheral surface of the cover portion 54) so as to protrude like a claw towards the main body portion 21 of the housing (cover 20).
  • the protrusion 55 protrudes a predetermined amount from the cover portion 54 towards the housing.
  • the main body portion 21 of the housing (cover 20) has a recess 24 provided on its surface at a predetermined distance from the tube portion 22.
  • the cap 52 is screw-type, and the convex portion of the cap 52 (the crests 53a of the female thread 53) fits into the groove portion (the valley 23a of the male thread 23) of the tubular portion 22 of the housing from the circumferential direction of the tubular portion 22.
  • the cap 52 is tightened to a predetermined state in which the convex portion of the cap 52 (the crests 53a of the female thread 53) fits into the groove portion (the valley 23a of the male thread 23) of the tubular portion 22 from the circumferential direction, the protrusion 55 falls into and fits into the recess 24, and the fixation of the cap 52 to the tubular portion 22 is completed.
  • the housing of the control device 1 is configured to have a tubular portion 22 whose inner surface is recessed relative to the main body portion 21 and protrudes outward, and a filter film 51 is attached to the end face of the tubular portion 22 so as to cover the air vent 22b provided in the end face of the tubular portion 22. Since the filter film 51 is attached to the seamless tubular portion 22 that is integral with the housing in this manner, a sealing structure between the tubular portion 22 and the main body portion 21 in the housing is not necessary, and the housing has excellent airtightness.
  • a recess 22a in which the filter membrane 51 is placed is provided on the end face of the tubular portion 22 of the housing, and the distance between the opposing surfaces of the recess 22a and the cap 52 is set to be greater than the thickness of the filter membrane 51, thereby ensuring a gap between the filter membrane 51 and the cap 52 when the cap 52 is attached to the tubular portion 22. This prevents wear on the filter membrane 51 due to contact with the cap 52, and ensures a space for air to pass through the filter membrane 51.
  • the recess 22a functions as a positioning guide for the filter membrane 51 relative to the tubular portion 22, which also contributes to ensuring ease of assembly of the respiratory filter 50.
  • the recess 22a also ensures flatness at the attachment portion of the filter membrane 51, and the desired attachment strength of the filter membrane 51 can be stably ensured.
  • Fig. 11 is a perspective view of a control device according to a second embodiment of the present invention as seen from the base side
  • Fig. 12 is an enlarged view of part XII in Fig. 11
  • Fig. 13 is a cross-sectional view taken along line XIII-XIII in Fig. 12.
  • parts similar to or corresponding to those in the first embodiment are given the same reference numerals as in the previously mentioned drawings, and their explanation will be omitted.
  • this embodiment is similar to the first embodiment, or the third or fourth embodiment described later.
  • the difference between this embodiment and the first embodiment is the structure for fixing the cap 52 to the tubular portion 22 of the housing.
  • the groove of the tubular portion 22 of the housing is the valley 23a of the male thread 23, and the convex portion of the cap 52 is the crest 53a of the female thread 53.
  • the undercut portion 26 formed on the outer peripheral surface of the tubular portion 22 is the groove of the tubular portion 22, and the hook 59 provided on the inner peripheral surface of the cap 52 is the convex portion of the cap 52, and the hook 59 fits into the undercut portion 26 from the circumferential direction to fix the cap 52 to the tubular portion 22.
  • multiple pairs of undercut portions 26 and hooks 59 are provided at equal intervals in the circumferential direction of the tubular portion 22 and the cap 52 (two pairs at a 180-degree pitch).
  • the position where the hook 59 and ventilation groove 22d are aligned is uniquely determined, preventing incorrect assembly when assembling the cap 52 to the tubular portion 22.
  • the ventilation slit 56 is aligned with the ventilation groove 22d, and the cap 52 is pressed into the tubular portion 22, causing the hook 59 of the cap 52 to fit into the undercut portion 26, completing the fixation of the cap 52 to the tubular portion 22.
  • the structure does not require the protrusion 55 of the cap 52, the recess 24 of the housing, or the protrusion 25, and in this respect, the structure can be simplified as well, and the risk of the cap 52 coming off accidentally due to interference between the protrusion 55 and some obstacle or incorrect operation is reduced.
  • Fig. 22A is a perspective view showing the inner structure of the cap of the breathing filter of the electronic control device according to the eighth embodiment of the present invention
  • Fig. 22B is an enlarged view of the main part of the cap of the breathing filter of the electronic control device according to this embodiment.
  • the same reference numerals as in the previously described embodiments are used for the same or corresponding parts, and the description thereof will be omitted.
  • the same effects as in the first to seventh embodiments can be obtained by attaching a cap 52 to the tube portion 22 to which the filter membrane 51 is attached.
  • the rattle prevention boss 52b comes into contact with the housing and elastically deforms, and the restoring force of the rattle prevention boss 52b pushes the cap 52 up from the housing.
  • the convex portion of the cap 52 is pressed against the wall surface of the groove portion of the tubular portion 22, suppressing rattle of the cap 52, and also suppressing the generation of noise due to rattle of the cap 52.
  • the cap 52 is also provided with a ventilation slit 56, but if a gap is secured between the cap 52 and the housing by the rattle prevention boss 52b, the ventilation slit 56 can be omitted.
  • 1...Electronic control device 10...Base (housing), 20...Cover (housing), 22...Cylinder, 22a...Recess, 22b...Ventilation hole, 22d...Ventilation groove, 23...Male thread, 23a...Groove, 24...Dimple, 25...Protrusion, 26...Undercut, 30...Circuit board, 51...Filter membrane, 52...Cap, 52a...Opposite surface, 52b...Anti-rattle boss, 53...Female thread, 53a...Convex, 55...Protrusion, 56...Ventilation slit, 57...Engagement, 58...Drainage slit, 59...Hook, 59a...Crash rib

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

La présente invention concerne un dispositif de commande électronique qui comprend une carte de circuit imprimé, un boîtier qui retient hermétiquement la carte de circuit imprimé à l'intérieur, un film filtrant fixé au boîtier et un capuchon en résine qui recouvre le film filtrant. Le boîtier a une surface intérieure en dépression par rapport au corps principal et a une partie tubulaire faisant saillie vers l'extérieur et ayant une rainure dans la surface circonférentielle externe ; le film filtrant est collé à une surface d'extrémité de la partie tubulaire de manière à couvrir un trou d'air formé dans la surface d'extrémité de la partie tubulaire ; et le capuchon a une saillie sur sa surface circonférentielle interne et a été placé sur la partie tubulaire et fixé à celle-ci par l'ajustement de la saillie dans la rainure.
PCT/JP2022/048430 2022-12-27 2022-12-27 Dispositif de commande électronique WO2024142339A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/048430 WO2024142339A1 (fr) 2022-12-27 2022-12-27 Dispositif de commande électronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/048430 WO2024142339A1 (fr) 2022-12-27 2022-12-27 Dispositif de commande électronique

Publications (1)

Publication Number Publication Date
WO2024142339A1 true WO2024142339A1 (fr) 2024-07-04

Family

ID=91716832

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/048430 WO2024142339A1 (fr) 2022-12-27 2022-12-27 Dispositif de commande électronique

Country Status (1)

Country Link
WO (1) WO2024142339A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0169746U (fr) * 1987-10-29 1989-05-09
JPH09321445A (ja) * 1996-05-24 1997-12-12 Toyo Commun Equip Co Ltd 電子部品のパッケージ構造
JP2012230983A (ja) * 2011-04-26 2012-11-22 Nitto Denko Corp 通気部材
WO2017057609A1 (fr) * 2015-09-29 2017-04-06 キョーラク株式会社 Flotteur et flotteur pour panneau solaire
WO2019135399A1 (fr) * 2018-01-04 2019-07-11 日東電工株式会社 Kit de tubage et élément de ventilation
JP2019140141A (ja) * 2018-02-06 2019-08-22 株式会社デンソー 電子制御装置
JP2022040632A (ja) * 2020-08-31 2022-03-11 株式会社デンソー 電子装置
JP2022090873A (ja) * 2020-12-08 2022-06-20 日産自動車株式会社 電子機器のケース構造

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0169746U (fr) * 1987-10-29 1989-05-09
JPH09321445A (ja) * 1996-05-24 1997-12-12 Toyo Commun Equip Co Ltd 電子部品のパッケージ構造
JP2012230983A (ja) * 2011-04-26 2012-11-22 Nitto Denko Corp 通気部材
WO2017057609A1 (fr) * 2015-09-29 2017-04-06 キョーラク株式会社 Flotteur et flotteur pour panneau solaire
WO2019135399A1 (fr) * 2018-01-04 2019-07-11 日東電工株式会社 Kit de tubage et élément de ventilation
JP2019140141A (ja) * 2018-02-06 2019-08-22 株式会社デンソー 電子制御装置
JP2022040632A (ja) * 2020-08-31 2022-03-11 株式会社デンソー 電子装置
JP2022090873A (ja) * 2020-12-08 2022-06-20 日産自動車株式会社 電子機器のケース構造

Similar Documents

Publication Publication Date Title
US10292281B2 (en) Electronic control device
US10010006B2 (en) Electronic control device and method of manufacturing electronic control device
US6757155B2 (en) Electronic circuit board case
US6785146B2 (en) Electronic circuit board fastening member
US20190348797A1 (en) Waterproof connector and waterproof structure of device case
JP5884135B2 (ja) コネクタユニット
US7815443B2 (en) Electrical connection box and method of assembling the electrical connection box
US11758667B2 (en) Electronic control unit
JP2018067735A (ja) 電子制御装置
JP6213434B2 (ja) 電子装置
JP7499938B2 (ja) ブロワ装置
JP2007329413A (ja) 電子装置
JP6375214B2 (ja) 電子制御装置
WO2024142339A1 (fr) Dispositif de commande électronique
JP6790903B2 (ja) 電子装置
JP6148598B2 (ja) コネクタ
JPH09331181A (ja) 電子機器筐体の締結構造
JP2007128715A (ja) コネクタとケースとの防水構造
JP2018143013A (ja) 電子制御装置
JP7396235B2 (ja) 電子装置
JP6950253B2 (ja) 電子装置
JP2019200837A (ja) 筐体へのコネクタ組立体の取付構造
JP2022515663A (ja) 接着型電子制御ユニット
CN111953126A (zh) 驱动装置
CN215300364U (zh) 电动泵

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22970127

Country of ref document: EP

Kind code of ref document: A1