• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Measuring a radiation, such as magnetism or light, with a measuring device with a detector, which originates from the interior of the housing of the B-relay and which leaves this interior and passes through a boundary wall of the housing of the B-relay enters the immediate vicinity of the housing of the B relay, in which immediate environment the measuring device measures this radiation with the detector. This for relay position monitoring at a railroad safety relay. Also called B-relay monitoring unit (BMU).
    公开号:NL2016440A
    申请号:NL2016440
    申请日:2016-03-15
    公开日:2016-10-10
    发明作者:Steentjes Noel
    申请人:Volkerrail Nederland Bv；
    IPC主号:
    专利说明:

    Measuring a radiation, relay box, relay, for example for relay position monitoring at a railroad safety relay.
    This invention relates to monitoring the relay position of a security relay (so-called BI relay) in a railway application, in particular relays that are used at security level in the control and control of points or crossings or used for track occupancy reporting, such as a so-called track occupancy notification. track repeat relay (TPR relay).
    A B relay is a relay with a safety function in a railway protection installation (including NX beverages). B relays have a very high degree of reliability, and will last for decades if they are regularly overhauled. Important properties of B-relays are that they are guaranteed to fall off if the coil is voltage-free, and that the break contacts (in jargon "back contact") open before the make contacts ("front contact") are closed. There are various types of B relays, with specific characteristics. The most commonly used type is the 56001-783Grl. This relay has two coils that operate on 12V DC, four change-over contacts ("whole contacts"), two make contacts and a break contact. Furthermore, there are B-relays that are delayed, delayed, suitable for large currents, etc. Another type of B relay is the track relay (TR). This relay is part of a track current loop, and is "up" if a track section is unoccupied, and drops out if the track section is occupied by a train.
    A safety relay is supplied in a sealed housing at the factory. The rear wall of the housing is equipped with contact ports that correspond to contact plugs (so-called terminals) that protrude from a contact block in the relay box. A B relay is placed by pressing its rear wall against the contact block so that the terminals are inserted into the contact ports so that the B relay, via wires connected to the terminals, is galvanically connected to the relevant circuit in which the B relay must be included. If, after being delivered, the housing is modified or damaged by the factory or the seal is broken, the relevant product will be rejected. Until now, therefore, only the power wires connected to the terminals have been used for relay position monitoring. FR A 2731974 discloses placing a Mali effect sensor around a power wire connected to a protection relay. The sensor responds to the magnetic field that is generated by current flowing through the electric wire. From practice it is known to place a loose so-called current clamp on a current wire which is connected to a B1 relay. This current clamp also works with Hall effect and forms a functionally corresponding sensor with FR A 2731974. Both types of sensors form a closed ring around the electrical wire that is sensitive to the magnetic field of the electric wire.
    The object of the invention is an improved relay position monitoring, wherein the improvement is one or more of: fast and reliable installation of the monitoring; reliability of monitoring; independence of the way the relay to be monitored is installed; another benefit.
    In order to achieve the object of the invention, it is proposed to use a measuring device with a detector to measure a radiation originating from the interior of the housing of the B relay and passing through a boundary wall of the housing of the B relay leaves internal space and enters the immediate vicinity of the housing of the B relay, in which immediate environment the measuring device measures this radiation with the detector. The detector is thereby connected via a wired or wireless (e.g. RF) connection to an input of a computer of a relay position monitoring system, so that the measurement signal from the detector can be supplied to this computer for processing.
    The radiation that is measured is, for example, light or a magnetic field, to which radiation the detector is sensitive. This radiation originates from inside the housing of the B relay and is preferably generated inside this housing, for example when the radiation is a magnetic field generated by a galvanic coil located in the internal space. Alternatively, the radiation is generated outside the housing, enters the entrance space via a boundary wall and then leaves the internal space via a boundary wall, for example when the radiation is ambient light.
    For the interior space of the housing of the B relay, one or more of the following preferably applies; is singular; contains one or more of a single or double galvanic magnet coil with a preferably soft core, an anchor, an anchor return spring, an exchange contact, a make contact, a break contact; contains all components of the B relay; is hermetically sealed with respect to the environment; is sealed against unauthorized access; has a boundary wall that is transparent to the radiation to which the measuring device is sensitive; at least one or two, preferably mutually parallel and / or straight, mounting sleeves extend therethrough, sealed with respect thereto and opening into the environment through the two opposite end wall walls, so that in a mounting sleeve a mounting pin protruding on either side can be plugged in (in a relay box a pair of mutually parallel, fixed mounting pins is available for each B relay on which a B-relay housing is simply plugged in so that its rear wall is placed against the contact block and then nuts are turned on the out of the front wall of the B -relay housing protruding thread ends of these mounting pins so that the B-relay housing remains slidably on the mounting pins); from this space one or more galvanic conductors protruded through a boundary wall and protrude into the environment; only one or more galvanic conductors extend from the space into the environment; the galvanic conductors are galvanically connected to one or more components in this space, such as a magnetic coil or a switch contact.
    For the detector, preferably one or more of the following applies: is a Hall sensor, preferably of a bipolar type; is placed outside the relay housing, is preferably placed at a distance of less than 5 or 10 mm below the relay housing; viewed in top view, is spaced between the front and rear walls, preferably at a distance of more than 10 or 30 mm from the front and / or rear wall of the relay housing, more preferably about halfway along the length of the relay housing installed; viewed in top view, is spaced between the two opposite side walls of the relay housing, preferably at a distance of more than 10 or 20 mm from the one and / or other side wall, more preferably approximately midway between; is located directly below the relay solenoid coil; is located in the vicinity of a concentrating body that concentrates the radiation detected by the detector, such as magnetic field, on the detector, which concentrating body is, for example, metal, for example aluminum, soft iron or ferrite material, preferably wherein the concentrating body is at a maximum of 5 or 10 mm is a horizontal level different from the detector, more preferably the concentrator body has a space or space in which the detector is accommodated, preferably exactly fitting, the concentrator body preferably being elongated and located in the longitudinal direction of the relay housing and / or horizontally and / or extends parallel to the relay coil and / or directly under the relay coil; the concentrator body is located outside the relay housing; is, preferably as a unit with the concentrator, adjustable, preferably stepless, mounted on a chassis immovably mounted on the relay housing, preferably adjustable in the longitudinal direction of the relay housing, for example via a slot in the chassis.
    The measuring device is preferably equipped with a microcontroller or such computer device, provided with a memory in which a reference value is stored with which the signal coming from the detector is compared to determine the relay position on the basis thereof.
    It is preferable to use a bipolar detector, such as a bipolar Hall sensor. This is based on the insight developed by the inventor that a switching relay generates a short-lived magnetic peak that causes a measurement failure with a unipo ± aire nail sensor. The inventor Dij coincidentally determined this phenomenon not known from the prior art experimentally from a field test with B reiais of different types occurring in the Netherlands, and a representative sample, carried out with a detector of unipolar type. In 75% of the B relays tested, the result of the monitoring was found to be inconsistent with the predictions based on laboratory results. Initially this disappointing result prompted. to stop developing this measurement device. In a later test, the offending phenomenon seemed inexplicably disappeared. Further investigation revealed that the later test was mistakenly tested with a bipolar Hall sensor. Substantial research in the laboratory has subsequently provided insight into why a unipolar whey and a bipolar Hall sensor do not lead to interference. Tolerances of the level of the supply voltage, galvanic property of components (such as the magnetic coil) of the relay and of the measuring device (such as the Hall sensor) appear to lead to unstable results of detection with a unipolar Hall sensor. The malfunction, which could be called "magnetic field counter pulse", is misinterpreted by the microcontroller as if the relay were switching.
    The bipolar detector is preferably used with a direction-sensitive relay. It has been established that a direction-sensitive relay in particular exhibits the magnetic peak during switching.
    The measuring device preferably includes an electronic filter connected to the detector so that the signal from the detector is first filtered before being input to the microcontroller. This filter is preferably one or more of a high-pass, low-pass, or b a n d o o r 1 a a t f i 11 e r.
    For the chassis, one or more of the following preferably applies: is preferably made of sheet material, for example metal; is substantially U-shaped in cross-section; take the relay housing between the legs of the U ορ; extends mainly. over the entire length and / or height of the relay housing; substantially covers the entire bottom and / or side walls of the relay housing; forms an open para, preferably parallelepiepicic Pak of which preferably one or more: of the top wall, front and rear wall are missing; has a stop cooperating with the front wall of the relay housing to prevent the chassis moving in the longitudinal direction of the relay housing in one direction; the detector is spaced between the bottom wall of the chassis and the bottom wall of the relay housing; is equipped with galvanic insulators in the mounting area with the relay housing to galvanically isolate the chassis completely from the relay housing and from the mounting means, for example a galvanically insulating U-shaped bracket; the detector provides a Faraday cage or similar shield against an ambient magnetic field; has a size and shape so that, in addition to the two mounting pins, an air gap is present everywhere or there is no contact surface with the relay housing and possibly the frame belonging to the relay box on which the relay housing is mounted; is wider than the relay housing; ends with its rear side forward of the rear side of the relay housing.
    One or more of the following applies to the U-shaped bracket: is made of sheet material; the two legs connect to the side walls of the chassis, preferably about half way up the height of the side walls; the legs are integral with. the side walls; the legs are covered with galvanic insulating material, preferably over substantially the full length, for example covered with an insulation sleeve; the body between the legs is entirely of insulating material; the body has two holes for mounting on the wire ends of the two mounting pins on which the B-relay housing is mounted; the legs have an approximately angled end that overlaps with the body and with which the legs are fixed to the body; the body has at least 10% greater clan ee "leg height; the height of a leg is less than 30% or 50% of the height of the chassis; the length of a leg is at least 15 or 20 mm; ae legs are running in the north case parallel to the mounting pins and / or at a level at a distance below the mounting pins, relative to the lengthwise direction of the mounting pins, the body of the U is spaced forward from the chassis.
    In a preferred embodiment, the detector is sensitive to the magnetic field that generates the galvanic magnet coil of the B relay, and for this purpose is located outside the relay housing at the shortest possible distance from the galvanic coil. Thus, measurement is performed directly on the component of the relay that initiates switching the relay from one state to the other.
    In an alternative, the detector is a reed switch or the re magnet s ch ake, a, or a re component. An RFID chip may be used in the measuring device to cooperate with or provide the detector. The detector can be sensitive to (visible: or IR) light., For example, part of a license. For example, the detector is arranged within the measuring device so that it may or may not receive a light beam belonging to the license tube, which light beam does not resp. is hindered by a movable component located in the relay housing which, by switching the relay, moves between two positions corresponding to the two switching positions of the relay, in one of which two positions the component does and does not control the light beam in the other position obstructs or blocks.
    The invention is further described with reference to the drawing. Hereby shows:
    FIG. 1 a perspective view of the relay housing;
    FIG. 2 a photo of a B relay;
    FIG. 3 an example of a chassis, in perspective /
    FIG. 4 a photo of a detail of a B-re1 a i s me t cha s s in the relay box.
    FIG. 1 shows the block-shaped relay housing which hermetically closes a single internal space from the environment. At a high level, two parallel, straight mounting sleeves run through the interior and protrude through both end walls. These mounting sleeves are sealed with respect to the internal space. A mounting pin longer than the sleeve can protrude from the sleeve at both sleeve ends.
    The internal space contains all components of the B relay, of which only the magnet coil is shown. This is at a low level. This magnet coil switches the relay.
    Outside the housing, a short distance straight below the magnet coil, the detector is shown as a plate. In this embodiment the detector comprises a bipolar Hall sensor with which the magnetic field of the magnetic coil is registered.
    Fig. 2 again shows the block-shaped, hermetically sealed relay housing and now also all components of the B relay inside this relay housing, including: a galvanic magnetic coil with a soft-iron core, an anchor, a return spring of the anchor, a changeover contact, a make contact break contact. The mounting sleeves are also visible. The plate-shaped detector is not visible in Fig. 2.
    FIG. 3 shows the sheet metal chassis, with integral U-bracket with legs 11 and holes 12 to be inserted into the body on the mounting pins. The legs 11 have right-angled lips that hold the separate member. The legs 11 are covered with. insulating sleeve and the body is located forward of the chassis. The slit hole 13 m at the bottom of the chassis provides the detector with the longitudinally traproze adjustability with respect to the r ea s b e s s a ls. lie. 4 shows the wires of the two mounting pins protruding forwards from the relay housing and on which nuts with round ribbed groove. are scorched around the relay housing against TT! The old part of these threaded ends protruding beyond these nuts, the body of the U-bracket of the chassis is plugged and pressed against nuts by nuts probed on the threaded ends. In addition to the mounting parts, the chassis has an air gap everywhere, so no contact with the relay housing or the frame on which the relay housing is mounted,
    权利要求:
    Claims (10)
    [1]
    1. Measuring a signal such as magnetism or light with a measuring device with a detector, originating from the interior space of the housing of the B-relay and passing through a boundary wall of the housing of the B-relay this interior leaves space and enters the immediate environment The housing of the B relay enters the immediate environment in which the measuring device measures this radiation with the detector.
    [2]
    2 .. ReiarsKasr this is a grore aa.nta.i relazs oeva.t of which at least one, or all, relay is located in its own relay housing which is equipped with an external, individual detector sensitive to radiation from the housing, which relay box. is associated with a railway, in particular contains a relay in its own relay housing which is applied at security level in the control and control of points or level crossings or used for track occupancy reporting, such as a so-called repeat relay.
    [3]
    3. Relay, for example for the relay box according to claim 2 or the method according to claim 1, in its own relay housing provided with an external, individual detector that is sensitive to radiation from the relay housing.
    [4]
    Relay according to claim 3, wherein the detector is at a distance of less than 10 mm below and, viewed in top view, at a distance of more than 10 mm between the front and rear wall and at a distance of more than 10 mm between the two opposite side walls of the relay housing are placed directly below the relay solenoid coil.
    [5]
    Relay according to claim 3 or 4, wherein the detector is adjustably mounted on a chassis immovably mounted on the relay housing.
    [6]
    Relay according to any of claims 3-5, wherein the detector is mounted on a chassis, which chassis is mounted on the relay housing by plugging on the wire ends of the two mounting pins on which the B-relay housing is mounted and the chassis is equipped with galvanic insulators in the mounting area with the relay housing.
    [7]
    Relay according to any of claims 3-6, the detector is spaced between the bottom wall of the chassis and the bottom wall of the relay housing.
    [8]
    The relay of any one of claims 3-7, wherein the detector is a bipolar detector, such as a bipolar Hall sensor.
    [9]
    The relay of any one of claims 3-8, which is a direction sensitive relay.
    [10]
    Relay according to one of claims 3 to 9, which is a safety relay in a railway application, in particular a relay that is used at safety level in the control and control of points or crossings or used for track occupancy notification, such as a so-called track repeat. re 1 ais
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    同族专利:
    公开号 | 公开日
    EP3069953A1|2016-09-21|
    NL2016440B1|2017-04-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP3663162A1|2018-12-05|2020-06-10|VolkerWessels Intellectuele Eigendom B.V.|Guarding a railroad track for workplace security|DE3001352C2|1980-01-16|1982-07-01|Siemens AG, 1000 Berlin und 8000 München|Diagnostic device in relay interlockings for testing assemblies during operation|
    FR2731974B1|1995-03-20|1998-09-11|Robert Jean|RAIL TRAFFIC MONITORING DEVICE|
    DE202004000987U1|2004-01-22|2004-04-22|Db Reise & Touristik Ag|Relay testing device, especially for testing an H8 type relay used with railway auxiliary protection circuits, in which startup and cut-off voltages are applied while coil current and burn-in currents and voltages are measured|
    EP2166365A1|2008-09-19|2010-03-24|Bombardier Transportation GmbH|Distributed safety monitoring system provided with a safety loop and method of testing such a system|
    WO2012116824A1|2011-03-02|2012-09-07|Phoenix Contact Gmbh & Co. Kg|Electromagnetic relay having a monitored switching position|NL2020390B1|2017-02-07|2020-01-24|Volkerrail Nederland Bv|Remote-controlledsection occupation on a railroad with B-relay.|
    EP3722181A1|2019-04-11|2020-10-14|VolkerRail Nederland BV|Magneto inductive principle safety relay current detector|
    法律状态:
    2020-03-25| PD| Change of ownership|Owner name: VOLKERWESSELS INTELLECTUELE EIGENDOM B.V.; NL Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: VOLKERRAIL NEDERLAND B.V. Effective date: 20200317 |
    2021-11-03| MM| Lapsed because of non-payment of the annual fee|Effective date: 20210401 |
    优先权:
    申请号 | 申请日 | 专利标题
    NL2014468|2015-03-17|
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