WO2020233989A1 - Soupape de commande d'un fluide - Google Patents

Soupape de commande d'un fluide Download PDF

Info

Publication number
WO2020233989A1
WO2020233989A1 PCT/EP2020/062540 EP2020062540W WO2020233989A1 WO 2020233989 A1 WO2020233989 A1 WO 2020233989A1 EP 2020062540 W EP2020062540 W EP 2020062540W WO 2020233989 A1 WO2020233989 A1 WO 2020233989A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulator
valve according
contact sleeve
housing
valve
Prior art date
Application number
PCT/EP2020/062540
Other languages
German (de)
English (en)
Inventor
Niki Hawa
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2020233989A1 publication Critical patent/WO2020233989A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/128—Encapsulating, encasing or sealing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/16—Fastening of connecting parts to base or case; Insulating connecting parts from base or case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F2007/062—Details of terminals or connectors for electromagnets

Definitions

  • the invention relates to a valve for controlling a fluid, in particular a gas, with the features of the preamble of claim 1.
  • the valve can in particular be a gas valve for metering a gaseous fuel into an intake tract of an internal combustion engine.
  • Gas valves of the type mentioned above are used, for example, in gas or gas diesel engines in passenger vehicles, in commercial vehicles, in rail vehicles and / or on ships. Other possible applications are gas or gas / diesel engines in systems for energy generation and / or energy generation. Especially when used in marine applications, the gas valve must meet special requirements aimed at preventing any combustible gas from leaking the environment arrives. All gas-carrying components are therefore usually double-walled. Any gas that escapes as a result of the leak is collected in a specially designed chamber. The gas content in the chamber is monitored, for example with the help of so-called "gas sniffers". In order to meet the high security requirements, all outer walls of the chamber must be made pressure-tight.
  • gas valves of the above type are generally actuated electrically, in particular electromagnetically, there is a particular problem in designing the cable feed-through of a connection cable led into the housing from the outside in a pressure-tight manner.
  • Conventional cable bushings for example in the form of a cable gland, are not pressure-tight and therefore not suitable for double-walled valves of the type mentioned above.
  • the present invention has for its object to provide a valve for controlling a fluid, in particular for controlling a gas, which comprises a housing for receiving an electromagnet, which is in the area of a cable and / or line feed for connecting the electromagnet with a external power source, is pressure-tight. In this way, a valve is to be created that is suitable, among other things, for marine applications.
  • the proposed valve comprises a housing and an electromagnet accommodated in the housing for actuating a movable valve closing element. At least one electrical line for connection to an external power source is connected to the electromagnet.
  • a connection element is integrated into the housing, which comprises an insulator and at least one contact sleeve connected to the insulator in a force-fitting or form-fitting manner for receiving an end of the electrical line on the one hand and for receiving an end of an electrical line brought in from the outside on the other.
  • the at least one line connected to the electromagnet ends in the contact sleeve so that it does not have to be led to the outside.
  • the area in which the electromagnet is accommodated can be designed to be pressure-tight to the outside in a simple manner, since an interruption of the sealing plane by a connection cable or a connection line is not necessary.
  • the at least one electrical line by means of which the electromagnet can be connected to an external power source is interrupted. In the area of the interruption, the current conduction is ensured via the contact sleeve.
  • the contact sleeve is preferably designed to be electrically conductive, at least partially or partially.
  • the area of the housing accommodating the electromagnet can thus be made pressure-tight or fluid-tight in a simple manner.
  • a double-walled design can be implemented which ensures that any amount of gas escaping as a result of the leakage is captured and does not reach the outside.
  • the at least one contact sleeve preferably has a longitudinal axis which is oriented essentially parallel to a longitudinal axis of the insulator.
  • the alignment of the contact sleeve thus corresponds to the alignment of the insulator. Since the insulator has the task of electrically isolating the current-carrying parts, in particular cables and / or lines ge compared to the housing, it can at least partially also be sleeve-shaped or hollow-cylindrical and the contact sleeve vice versa. The accessibility of the contact sleeve is guaranteed by the parallel longitudinal axes.
  • the at least one contact sleeve preferably has a first and a second receptacle, the first and the second receptacle being arranged coaxially and separated from one another in a fluid-tight manner by a partition wall of the contact sleeve.
  • One end of an electrical line can be inserted into each of the two receptacles, so that they are connected in an electrically conductive manner via the contact sleeve.
  • At least two contact sleeves are advantageously provided, which are arranged eccentrically with respect to the insulator. At least two line ends can thus be inserted from each side of the connection element and connected in an electrically conductive manner via the contact sleeves.
  • the at least one contact sleeve preferably has an annular sealing element which is arranged on the outer circumference and rests against the insulator of the connection element under radial prestress.
  • the sealing element seals the area between the contact sleeve and the insulator, so that it is ensured that no fluid escapes to the outside.
  • the insulator is at least partially designed as a hollow cylinder and has at least one outer circumference On the catch side arranged annular sealing element, which rests under a radial tension on the housing.
  • the insulator has a base or intermediate base in which at least one seat is formed for the at least one contact sleeve.
  • the seat facilitates the non-positive or positive connection of the contact sleeve with the insulator.
  • the contact sleeve can be pressed into the insulator directly or indirectly via a ring-shaped sealing element in the area of the seat.
  • the seat is designed as a stepped bore. The stage is used to support the contact sleeve.
  • the isolator is made in several parts and comprises at least two coaxially arranged parts.
  • the multi-part design facilitates the assembly of the at least one contact sleeve. This is particularly true when the insulator is to engage behind the contact sleeve in order to achieve a form fit.
  • the two coaxially arranged parts of the isolator are butted axially.
  • the at least one contact sleeve can be fixed in position at the same time.
  • the two coaxially arranged parts are at least partially surrounded by a sleeve-shaped third part. With the aid of the sleeve-shaped third part, the two coaxially arranged parts can be joined in a simple manner. Furthermore, a seal of the joint area is sufficient over the sleeve-shaped third part.
  • the two coaxially arranged parts of the insulator are axially butted in the region of the Bo dens or intermediate floor and the at least one seat for the min least one contact sleeve extends through both parts.
  • a sufficiently large contact surface is created. Since this also represents a sealing point, it increases in size with the contact surface also the sealing surface. It is therefore achieved an improved waterproofing device.
  • part of the two coaxially arranged parts of the insulator have at least one axially protruding section, preferably at least one collar section, which engages in the area of the seat of the other part. In this way, a form fit is achieved between the coaxially arranged parts of the insulator, which counteracts a relative movement of the two parts to one another in the radial direction.
  • the axially protruding section, in particular the collar section, of one part of the insulator is preferably supported on a radially extending annular shoulder of the contact sleeve. This ensures that at least part of the insulator engages behind the contact sleeve, so that a form fit between the contact sleeve and the insulator is achieved.
  • connection element having the insulator and the at least one contact sleeve be completely accommodated in the housing and a cable duct for a connection cable brought in from the outside is inserted into the housing coaxially at an axial distance from the connection element.
  • the cable bushing can in particular be designed as a screw sleeve which is screwed or can be screwed into the housing from the outside. Since the required tightness is established via the connection element, a simple, non-pressure-tight cable bushing can be selected for the connection cable.
  • the movable valve element is preloaded in the direction of a valve seat by means of one or more springs.
  • FIG. 2 shows a longitudinal section through the connection element of the valve of FIG. 1.
  • the valve shown in Fig. 1 for controlling a fluid, in particular a Ga ses, has a housing 1 in which an electromagnet 2 is received. Above the electromagnet 2, a connection element 4 is also accommodated in the housing 1, which serves to electrically connect an electrical line 3 connected to the electromagnet 2 with an electrical line 7 of a connecting cable 16 brought in from the outside. Above the connection element 4, a cable bushing 15 is inserted into the housing 1, through which the connection cable 16 is guided into the housing 1. The cable bushing 15 is not designed to be fluid-tight. The sealing of the housing 1 to the outside is achieved in the present case by the connection element 4.
  • connection element 4 has a multi-part insulator 5 and two contact sleeves 6, the longitudinal axes Ai of which are aligned parallel to the longitudinal axis A2 of the insulator 5.
  • Both contact sleeves 6 are arranged ex-centrically with respect to the insulator 5 and each have a receptacle 6.1, 6.2 on each side for one line end.
  • the receptacles 6.1, 6.2 and thus the line ends are separated by a partition 8 of the contact sleeve 6, so that no fluid can pass through the contact sleeve 6 to the outside.
  • the two contact sleeves 6 each have an annular sealing element 9, which bears against the insulator 5 under a bias, so that this area is also sealed off.
  • the insulator 5 comprises two coaxially arranged parts 5.1, 5.2, which are each designed in the shape of a hollow cylinder and are butted axially in the region of a base 11.
  • the two floors 11 together form an intermediate floor 11 of the insulator 5, in which two seats 12 are formed for the two contact sleeves 6.
  • the two seats 12 are designed as stepped bores, so that the insulator 5 after joining of the two parts 5.1, 5.2 engages behind the contact sleeves 6 used therein.
  • one part 5.2 has axially protruding sections or collar sections 13 that engage in the areas of the seats 12 of the other part 5.1 and thereby come to rest on annular shoulders 14 of the contact sleeves 6 inserted therein. In this way, a positive connection of the two parts 5.1, 5.2 of the insulator 5 and of the insulator 5 with the contact sleeves 6 is achieved.
  • the insulator 5 shown in FIGS. 1 and 2 has a third part 5.3, which is sleeve-shaped and surrounds the two parts 5.1, 5.2 at least in sections.
  • the third part 5.3 covers the joint area of the two parts 5.1, 5.2, so that the sealing effect of the connection element 4 is further improved.
  • an annular sealing element 10 is angeord net on the outside of the catch side on the part 5.1 of the insulator 5, which rests against the housing 1 of the valve under a radial prestress after the assembly of the connection element 4 (see FIG. 1).
  • connection element 4 shown in FIGS. 1 and 2 With the aid of the connection element 4 shown in FIGS. 1 and 2, a pressure-tight electrical connection of an electromagnet 2 accommodated in a housing 1 can be realized. Any amounts of leakage remain in the housing 1 or can be fed to a chamber (not shown) via a connecting channel 17 in order to collect amounts of leakage.
  • the valve is therefore particularly suitable for marine applications or at least for applications that require a pressure-tight housing design.

Abstract

L'invention concerne une soupape de commande d'un fluide, notamment d'un gaz, comportant un boîtier (1) et un électroaimant (2) logé dans le boîtier (1), destiné à actionner un obturateur de soupape mobile, au moins une ligne électrique (3) étant raccordée à l'électroaimant (2) pour la connexion à une source de courant externe. Selon l'invention, un élément de raccordement (4) est intégré au boîtier (1), et comporte un isolateur (5) et au moins une douille de contact (6) reliée à force ou par complémentarité de forme à l'isolateur (5) pour la réception d'une extrémité de la ligne électrique (3) d'une part et d'une extrémité d'une ligne électrique (7) provenant de l'extérieur d'autre part.
PCT/EP2020/062540 2019-05-20 2020-05-06 Soupape de commande d'un fluide WO2020233989A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019207360.3A DE102019207360A1 (de) 2019-05-20 2019-05-20 Ventil zum Steuern eines Fluids
DE102019207360.3 2019-05-20

Publications (1)

Publication Number Publication Date
WO2020233989A1 true WO2020233989A1 (fr) 2020-11-26

Family

ID=70680483

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/062540 WO2020233989A1 (fr) 2019-05-20 2020-05-06 Soupape de commande d'un fluide

Country Status (2)

Country Link
DE (1) DE102019207360A1 (fr)
WO (1) WO2020233989A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5644104A (en) * 1994-12-19 1997-07-01 Porter; Fred C. Assembly for permitting the transmission of an electrical signal between areas of different pressure
US20090236551A1 (en) * 2006-03-02 2009-09-24 Kabushiki Kaisha Kawasaki Precision Machinery Valve Device
US20170054247A1 (en) * 2014-04-30 2017-02-23 Eaton Corporation High pressure sealed electrical connector
RU175606U1 (ru) * 2017-05-29 2017-12-12 Акционерное общество "Государственный Рязанский приборный завод" Герметичный электронный блок

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6452099B1 (en) * 2001-02-08 2002-09-17 Dynetek Industries Ltd. Electric signal pass through arrangement
US6575194B2 (en) * 2001-02-10 2003-06-10 Dynetek Industries Ltd. Electrical signal pass through arrangement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5644104A (en) * 1994-12-19 1997-07-01 Porter; Fred C. Assembly for permitting the transmission of an electrical signal between areas of different pressure
US20090236551A1 (en) * 2006-03-02 2009-09-24 Kabushiki Kaisha Kawasaki Precision Machinery Valve Device
US20170054247A1 (en) * 2014-04-30 2017-02-23 Eaton Corporation High pressure sealed electrical connector
RU175606U1 (ru) * 2017-05-29 2017-12-12 Акционерное общество "Государственный Рязанский приборный завод" Герметичный электронный блок

Also Published As

Publication number Publication date
DE102019207360A1 (de) 2020-11-26

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