WO2013166071A1 - Systèmes et procédés destinés à recouvrir des orifices d'accès - Google Patents

Systèmes et procédés destinés à recouvrir des orifices d'accès Download PDF

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Publication number
WO2013166071A1
WO2013166071A1 PCT/US2013/038946 US2013038946W WO2013166071A1 WO 2013166071 A1 WO2013166071 A1 WO 2013166071A1 US 2013038946 W US2013038946 W US 2013038946W WO 2013166071 A1 WO2013166071 A1 WO 2013166071A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
cover
fastener
item
access port
Prior art date
Application number
PCT/US2013/038946
Other languages
English (en)
Inventor
Bradley D. Chamberlin
Steve Burton
Original Assignee
Remy Technologies, Llc
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 Remy Technologies, Llc filed Critical Remy Technologies, Llc
Priority to DE112013001853.5T priority Critical patent/DE112013001853T5/de
Priority to CN201380029409.XA priority patent/CN104334414B/zh
Publication of WO2013166071A1 publication Critical patent/WO2013166071A1/fr
Priority to US14/528,199 priority patent/US9809181B2/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements

Definitions

  • Embodiments of this invention relate generally to systems and methods to inhibit access to dangerous items, and to safety covers for high voltage electrical devices, such as, for example, electrical devices associated with electric and/or hybrid gas/electric vehicles.
  • high voltage electrical devices such as, for example, electrical devices associated with electric and/or hybrid gas/electric vehicles.
  • hybrid vehicles may be described herein with respect to gas/electric powertrain systems, the fuel powering the nonelectric portion of the hybrid powertrain may be another form of combustible fuel, such as ethanol, diesel, natural gas or vegetable oil, as non-limiting examples.
  • HVIL circuits frequently operate to rapidly dissipate electrical energy stored in an electrical device when an access cover for the electrical device is removed, thereby preventing an individual from being accidentally shocked by the high voltage device.
  • HVIL circuits typically require some form of electrical controller and wiring.
  • Embodiments of the present invention provide improved access port safety cover systems and methods.
  • an improved access port cover system retains the access cover to a device (e.g., an electrical device) after the access cover is installed during the device manufacturing and/or installation process.
  • the device has operational and nonoperational states.
  • the cover is retained such that it cannot be removed without first disassembling at least a portion of the electrical device or the larger device in which the electrical device is a component (e.g., removing the electrical device from the larger device), or damaging a part of the cover system, such as the cover, the housing (which may include a portion of the larger device or system) to which the cover is attached, or a fastener connecting the cover and the housing.
  • fasteners for holding a cover over an access port are accessible from inside a housing for securing and removing the cover, but are inaccessible from outside the housing for securing and removing the cover.
  • fasteners accessible from outside the housing may also be used to securely hold the cover to the housing.
  • advantages are realized by having a cover that cannot be removed (at least without damaging a component) by either a user or a lower-level maintenance technician of the electric device during its normal service life.
  • the cover may be removed only during disassembly of the electrical device, which should normally be performed only by higher-level maintenance technicians, such as during an overhaul of a hybrid (e.g., internal combustion (IC) engine/electric motor) powertrain by the manufacturer or service facility, during which the powertrain is at least partially disassembled.
  • a hybrid e.g., internal combustion (IC) engine/electric motor
  • a system is used to control access to the above-mentioned dangerous or sensitive equipment.
  • the present disclosure provides an access port cover system including a housing for an item.
  • the housing defines interior and exterior regions and includes an access port through which access to the item from the exterior region is provided.
  • the system also includes a cover inhibiting access through the access port from the exterior region to the interior region, and a fastener connectable to the housing and the cover.
  • the fastener has an actuation portion for disconnecting the housing and the cover to permit access through the access port from the exterior region to the interior region, the actuation portion being inaccessible from the exterior region when the fastener is connected to the housing and the cover.
  • An aspect of the access port cover system is that the actuation portion of the fastener is accessible from the interior region.
  • An aspect of the access port cover system is that the actuation portion is inaccessible from the exterior region without disassembling or damaging the system.
  • An aspect of the access port cover system is that the actuating portion is configured for being engaged with a tool.
  • An aspect of the access port cover system is that the housing includes a portion of a hybrid vehicle.
  • An aspect of the access port cover system is that the housing includes a portion of a hybrid vehicle powertrain.
  • an aspect of the access port cover system is that the fastener includes a securing portion and the cover includes a fastener engagement portion, the securing portion and the fastener engagement portion engageable for securing the cover to the housing.
  • the securing portion and fastener engagement portion include
  • An aspect of the access port cover system is that it further includes an external fastener optionally connectable to the housing and the cover.
  • the external fastener has an actuation portion for disconnecting the housing and the cover, the external fastener actuation portion being accessible from the exterior region the fastener is connected to the housing and the cover.
  • An aspect of the access port cover system is that the fastener is not part of the cover and is not part of the housing.
  • An aspect of the access port cover system is that the fastener includes a portion of the cover, a portion of the housing, or a portion of the cover and a portion of the housing.
  • the present disclosure also provides a system including a housing for an item having operational and nonoperational states.
  • the housing including an access port through which the item may be accessed from the exterior of the housing.
  • the system also includes a cover connectable to the housing, and a fastener configured and sized to connect the cover to the housing in a position that inhibits access to the item from the exterior of the housing through the access port.
  • the fastener includes an actuation portion for connecting and disconnecting the cover and the housing, the actuating portion being inaccessible to disconnect the cover and the housing from the exterior of the housing when the fastener, the cover and the housing are connected and the item is in an operational state.
  • An aspect of the system is that the fastener is accessible from the interior of the housing.
  • An aspect of the system is that the item is a high voltage electrical component connectable to the housing, and the system further includes a hybrid vehicle and hybrid powertrain connectable to the high voltage electrical component. The actuating portion of the fastener is inaccessible while the housing is connected to the hybrid vehicle.
  • An aspect of the system is that the actuating portion of the fastener is inaccessible to disconnect the cover and the housing from the exterior of the housing without disassembling or damaging at least one the housing, the cover, and the fastener.
  • An aspect of the system is that it further includes an external fastener configured and sized to connect the cover to the housing.
  • the external fastener includes an actuation portion for connecting and disconnecting the cover and the housing, the external fastener actuating portion being accessible to disconnect the external fastener from at least one of the housing and the cover from the exterior of the housing when the external fastener, the cover, and the housing are connected and the item is in an operational state.
  • the present disclosure also provides a method for covering an access port, including the steps of: connecting a cover to a housing for an item contained within the housing, in a location that inhibits access to the item through an access port in the housing from an exterior region of the housing by actuating an actuation portion of a fastener in contact with the housing and the cover; and ceasing actuation of the fastener actuation portion when the actuation portion is in a location that is inaccessible from the exterior region of the housing when the item is operational.
  • An aspect of the method is that it further includes the steps of: securing the cover to the housing by actuating an external fastener; and ceasing actuation of the external fastener when the actuation portion of the external fastener is in a location that is accessible from the exterior region of the housing when the item is operational.
  • An aspect of the method is that the actuating of the actuating portion is from an interior region of the housing.
  • a further aspect of the method is that it further includes the step of connecting the housing to a hybrid powertrain.
  • FIG. 1 is a perspective view of one embodiment of a housing access port cover system
  • FIG. 2 is a perspective view of the exterior surface of the cover depicted in FIG. 1;
  • FIG. 3 is a perspective view of the interior surface of the cover depicted in FIG. 1;
  • FIG. 4 is perspective view of the housing access port depicted in FIG. 1 as viewed from the interior region defined by the housing;
  • FIG. 5 is a perspective view of the housing access port depicted in FIG. 1 with the cover installed as viewed from the interior region defined by the housing;
  • FIG. 6 is a perspective view of the housing access port depicted FIG. 1 as viewed from the exterior region defined by the housing; and [0036] FIG. 7 is a perspective view of the housing access port depicted in FIG. 1 with the cover installed as viewed from the exterior region defined by the housing.
  • invention within this document is a reference to an embodiment of a family of inventions, with no single embodiment including features that are necessarily included in all embodiments, unless otherwise stated. Furthermore, although there may be references to “advantages” provided by some embodiments of the present invention, other embodiments may not include those same advantages, or may include different advantages. Any advantages described herein are not to be construed as limiting to any of the claims.
  • FIGS. 1-7 Depicted in FIGS. 1-7 is an embodiment of access port cover system 100, which has an associated method for covering and/or uncovering access port 112 such as described herein.
  • Cover system 100 includes housing 110 which may be a housing for an electrical device, or at least a part of such a housing. Access port 112 is located in housing 110, and cover system 100 includes access port cover 120 and at least one internal fastener 130. Some embodiments of access port cover system 100 may also include one or more external fasteners 140, as shown.
  • Housing 110 defines interior region 116 in which an item (not shown) such as a component of the device, to which access is to be controlled, is at least partially contained.
  • Housing 110 further defines exterior region 117 from which access to the item is to be controlled.
  • housing 110 at least partially encloses an item that is an electrical component which may be a high voltage component in the electric motor portion of a vehicle hybrid IC engine/electric motor powertrain.
  • System 100 inhibits access to the high voltage electrical component by people (such as mechanics and vehicle owners), their tools, and foreign objects such as water and dirt, particularly when housing 110 and the component are installed in the vehicle, and have an operational state.
  • limiting access to interior region 116 is desirable when housing 110 and the electrical component are operational, it may be desirable to permit access to interior region 116 and/or the item during manufacturing and/or installation of the component and/or housing 110.
  • Access port 112 provides access to interior region 116 while cover 120 is removed.
  • Cover 120 inhibits access to interior region 116 when positioned over access port 112.
  • Cover 120 optionally includes sealing portion, such as groove 126 for receiving a gasket (not shown) to maintain a seal between cover 120 and housing 110.
  • Cover 120 includes one or more fastener engagement portions 122.
  • Fastener engagement portion 122 shown in the figures is a tapped hole.
  • internal fasteners 130 are not accessible or visible from exterior region 117 in the illustrated embodiment, wherein fastener engagement portion 122 is a tapped, blind hole located in a boss 128, alternative embodiments are readily envisioned in which internal fasteners 130 are visible, but not operationally accessible, from exterior region 117. In other words, portions of internal fasteners 130 in such alternative embodiments are visible from exterior region 117, but a user of the device is unable to access internal fastener actuating portion 132 without damaging housing 110, cover 120, or internal fastener 130.
  • fastener engagement portion 122 may be a tapped, through hole open at its opposite ends.
  • One or more fasteners accessible from interior region 116 (for example, one or more internal fasteners 130) engages one or more fastener engagement portions 122 and holds cover 120 securely over access port 112.
  • internal fastener(s) 130 can be actuated from interior region 116, but cannot be actuated from exterior region 117 to remove cover 120 from access port 112.
  • each internal fastener 130 is inserted from interior region 116 through fastener aperture 114, which may be a clearance hole, in housing 110.
  • Each internal fastener 130 engages a fastener engagement portion 122 of cover 120.
  • Each internal fastener includes an actuation portion that is manipulated to connect (or disconnect) cover 120 and housing 110.
  • the internal fastener also includes a securing portion that holds cover 120 and housing 110 together when the actuation portion is no longer being manipulated.
  • internal fastener 130 includes actuating portion 132 and securing portion 134.
  • Actuating portion 132 is adapted to be manipulated to connect or disconnect access port cover 120 and housing 110.
  • securing portion 134 of internal fastener 130 engages cover 120 and/or housing 110.
  • internal fastener 130 is a threaded bolt that engages internal threads 136 of cover fastener engagement portion 122.
  • Internal fastener actuating portion 132 as shown includes the internal hexagonal surfaces of the bolt head depicted in FIG. 5, and can be manipulated by a torquing tool (not shown) such as a wrench to rotate bolt 130.
  • Securing portion 134 e.g., the threads of bolt 130 and the bolt head surface nearest the bolt threads holds cover 120 and housing 110 together.
  • the head of bolt 130 engages the rim 138 surrounding fastener aperture 114 and bolt threads engage internally threaded portion 136 of cover fastener engagement portion 122.
  • internal fastener actuating portion 132 is accessible from interior region 116 but is inaccessible from exterior region 117.
  • a portion of housing 110 may be a part of the larger device.
  • a portion of housing 110 may be formed by a part of the vehicle to which the portion of housing 110 depicted in FIG. 1 is attached.
  • FIG. 4 depicts access port 112 and fastener apertures 114 of housing 110 as viewed from interior region 116.
  • FIG. 5 depicts a view from the same perspective as FIG. 4, but with cover 120 positioned over access port 112 and internal fasteners 130 holding cover 120 in position over access port 112.
  • FIG. 6 depicts access port 112 and fastener apertures 114 as viewed from exterior region 117.
  • FIG. 7 depicts a view from the same perspective as FIG. 6, but with cover 120 secured over access port 112.
  • embodiments of system 100 may optionally include one or more fasteners (for example, external fasteners 140) accessible from exterior region 117 that are used to further secure cover 120 over access port 112.
  • external fasteners 140 may be accessed and manipulated from exterior region 117 when housing 110 and the item (e.g., a high voltage electrical component) within interior region 116 are operational.
  • External fasteners 140 may be substantially similar to internal fasteners 130, and be provided with actuating portions 142 and securing portions 144 respectively similar to actuating portions 132 and securing portions 134.
  • the actuating portions 142 of fasteners 140 include the external hexagonal surfaces of the bolt head. External fasteners 140 are received into clearance holes 146 of cover 120 and engage the internal threads of tapped holes 148 in housing 110.
  • access port 112 allows workers to gain access to interior region 116 from exterior region 117 during the manufacture and, if required, installation of housing 110 and the item contained within. This may be useful for various purposes during manufacture or installation, such as when securing the item within housing 110 or inspecting the installation of the item within housing 110.
  • cover 120 is positioned over access port 112 and secured in position with one or more internal fasteners 130.
  • One or more external fasteners 140 may also be used to further secure cover 120 in position over access port 112.
  • housing 110 and the device componentry contained within housing 110 are configured for operation.
  • housing 110 and the high voltage electrical device are operationally connected to the vehicle and configured for operation (e.g., once operational), interior region 116 and actuating portion(s) 132 of internal fastener(s) 130 are inaccessible from exterior region 117 without de-configuring housing 110 and/or device componentry contained within housing 110 from operation, or damaging a component of system 100 or the device to which housing 110 and/or the item contained within housing 110 are attached.
  • actuating portions 132 of internal fasteners 130 cannot be accessed from exterior region 117 without removing housing 110 from the vehicle, or damaging housing 110, cover 120, internal fastener 130 or the vehicle.
  • internal fastener 130 is depicted as a bolt in FIG. 1, in alternative embodiments of system 100 internal fasteners 130 may include, by way of non-limiting examples, screws, retaining rings, clips, retaining collars with expandable inserts, and/or cotter pins.
  • actuating portion 132 and securing portion 134 are selfsame, while in other embodiments of system 100 actuating portion 132 and securing portion 134 are different.
  • actuating portion 132 for connection is the same as actuating portion 132 for disconnection, and in still further embodiments of system 100 actuating portion 132 for connection is different from actuating portion 132 for
  • internal fastener 130 is a portion of cover 120, a portion of housing 110, or a portion of cover 120 and a portion of housing 110.
  • housing 110 includes a retaining aperture (not shown) through which an expandable insert portion (not shown) of cover 120 is inserted, and when a tip of the insert portion is inserted past a point at which it can expand, the tip expands and inhibits removal of cover 120.
  • the insert portion expandable tip is compressed and the insert portion is removed from the retaining aperture.
  • access port cover 120 is installed on housing 110 of an electric motor used to power equipment other than the drive wheels of a vehicle.
  • access port cover 120 is installed on housing 110 of an electric motor that drives auxiliary devices on equipment used in agricultural, mining, or construction applications.
  • Embodiments of system 100 may be used with various types of electric machines, such as traction motors, induction motors, permanent magnet motors (including internal and surface mounted magnets), generators or other types of rotating electrical devices.
  • system 100 limit access to particular portions of electric machines, for example, various dangerous or sensitive components such as stators (including conventional round wire wound stators and high voltage hairpin (“HVH”) stators), rotors (including AC induction rotors, which may be made of copper, aluminum, or other suitable material), windings, or the like.
  • stators including conventional round wire wound stators and high voltage hairpin (“HVH") stators
  • rotors including AC induction rotors, which may be made of copper, aluminum, or other suitable material
  • windings or the like.
  • Some embodiments of system 100 may be used to limit access in electric and nonelectric devices, and may be used to limit access to rotating components of machinery, such as driveshafts, camshafts and electric rotors.
  • a system including: a housing for a hybrid vehicle electrical component, the housing defining an exterior region and including an access port, the access port providing access to the hybrid vehicle electrical component from the exterior region; a cover inhibiting access through the access port from the exterior region to the hybrid vehicle electrical component; and a fastener connected to the housing and the cover, the fastener having an actuation portion for disconnecting the housing and the cover to permit access through the access port from the exterior region to the hybrid vehicle electrical component, the actuation portion being inaccessible from the exterior region when the hybrid vehicle electrical component is operational.
  • a system including: a housing for an electrical component, the housing including an access port through which the electrical component may be accessed from the exterior of the housing; a cover connectable to the housing; a fastener configured and sized to connect the cover to the housing in a position that inhibits access to the electrical component from the exterior of the housing through the access port, the fastener including an actuation portion for connecting and disconnecting the cover and the housing, the actuating portion being inaccessible to disconnect the cover and the housing from the exterior of the housing when the fastener, the cover and the housing are connected and the electrical component is operational.
  • a method including the acts or steps of: connecting a cover to a housing for an electrical device in a location that inhibits access to the electrical device from an exterior region of the housing through an access port in the housing by actuating an actuation portion of a fastener in contact with the housing and the cover; and ceasing actuation of the fastener actuation portion when the actuation portion is in a location that is inaccessible from the exterior region of the housing when the electrical device is operational.

Abstract

Système de cache pour orifice d'accès, comprenant un carter destiné à un article, le carter délimitant des régions intérieure et extérieure et comprenant un orifice d'accès par lequel on peut accéder à l'article depuis la région extérieure, un cache empêchant l'accès à la région intérieure, par l'orifice d'accès, depuis la région extérieure, et un organe de fixation pouvant être relié au carter et au cache. L'organe de fixation possède une partie d'actionnement destinée à désolidariser le carter et le cache pour permettre l'accès à la région intérieure, par l'orifice d'accès, depuis la région extérieure, la partie d'actionnement étant inaccessible depuis la région extérieure lorsque l'organe de fixation est relié au carter et au cache.
PCT/US2013/038946 2012-04-30 2013-04-30 Systèmes et procédés destinés à recouvrir des orifices d'accès WO2013166071A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112013001853.5T DE112013001853T5 (de) 2012-04-30 2013-04-30 System und Verfahren zum Bedecken von Zugangsöffnungen
CN201380029409.XA CN104334414B (zh) 2012-04-30 2013-04-30 用于覆盖进入端口的系统和方法
US14/528,199 US9809181B2 (en) 2012-04-30 2014-10-30 Systems and methods for covering access ports

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261640333P 2012-04-30 2012-04-30
US61/640,333 2012-04-30

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/528,199 Continuation US9809181B2 (en) 2012-04-30 2014-10-30 Systems and methods for covering access ports

Publications (1)

Publication Number Publication Date
WO2013166071A1 true WO2013166071A1 (fr) 2013-11-07

Family

ID=49514829

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/038946 WO2013166071A1 (fr) 2012-04-30 2013-04-30 Systèmes et procédés destinés à recouvrir des orifices d'accès

Country Status (3)

Country Link
CN (1) CN104334414B (fr)
DE (1) DE112013001853T5 (fr)
WO (1) WO2013166071A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113824237A (zh) * 2021-09-14 2021-12-21 郝子翾 一种耐磨性节能型电动机

Citations (5)

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Publication number Priority date Publication date Assignee Title
US4761852A (en) * 1985-11-12 1988-08-09 Sauber Charles J Hinge for vehicle panel door
US4986096A (en) * 1989-09-07 1991-01-22 William Soehner Access cover security device
US20070071619A1 (en) * 2005-08-10 2007-03-29 Envirotech Pumpsystems, Inc. Fill port for a self-priming centrifugal pump, with safety device
US7337695B2 (en) * 2003-12-18 2008-03-04 Stöber Antriebstechnik GmbH & Co. Transmission casing
US20110133575A1 (en) * 2008-12-26 2011-06-09 Mitsubishi Heavy Industries, Ltd. In-vehicle integrated-inverter electric compressor

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US8122866B2 (en) * 2008-10-29 2012-02-28 GM Global Technology Operations LLC Acoustic bumpers with engine front cover hidden mounting

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761852A (en) * 1985-11-12 1988-08-09 Sauber Charles J Hinge for vehicle panel door
US4986096A (en) * 1989-09-07 1991-01-22 William Soehner Access cover security device
US7337695B2 (en) * 2003-12-18 2008-03-04 Stöber Antriebstechnik GmbH & Co. Transmission casing
US20070071619A1 (en) * 2005-08-10 2007-03-29 Envirotech Pumpsystems, Inc. Fill port for a self-priming centrifugal pump, with safety device
US20110133575A1 (en) * 2008-12-26 2011-06-09 Mitsubishi Heavy Industries, Ltd. In-vehicle integrated-inverter electric compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113824237A (zh) * 2021-09-14 2021-12-21 郝子翾 一种耐磨性节能型电动机

Also Published As

Publication number Publication date
CN104334414A (zh) 2015-02-04
CN104334414B (zh) 2017-03-08
DE112013001853T5 (de) 2014-12-31

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