EP1045354A2 - Dispositif d'alarme - Google Patents

Dispositif d'alarme Download PDF

Info

Publication number
EP1045354A2
EP1045354A2 EP00650025A EP00650025A EP1045354A2 EP 1045354 A2 EP1045354 A2 EP 1045354A2 EP 00650025 A EP00650025 A EP 00650025A EP 00650025 A EP00650025 A EP 00650025A EP 1045354 A2 EP1045354 A2 EP 1045354A2
Authority
EP
European Patent Office
Prior art keywords
base
alarm
alarm device
alarm body
terminal
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP00650025A
Other languages
German (de)
English (en)
Other versions
EP1045354B1 (fr
EP1045354A3 (fr
Inventor
Michael Byrne
James Duignan
Keith Fawcett
Fergus Flynn
Michael Guinee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EI Technology Ltd
Original Assignee
EI Technology Ltd
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 EI Technology Ltd filed Critical EI Technology Ltd
Publication of EP1045354A2 publication Critical patent/EP1045354A2/fr
Publication of EP1045354A3 publication Critical patent/EP1045354A3/fr
Application granted granted Critical
Publication of EP1045354B1 publication Critical patent/EP1045354B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Definitions

  • the invention relates to an alarm device, such as a smoke or heat alarm device.
  • alarm devices are mains-powered and usually have a battery back-up.
  • alarm devices must be installed by a qualified electrician and the user must be extremely careful when opening the device to change a back-up battery or for any other maintenance.
  • United States Patent Serial No. 4315594 (Cerberus) describes a fire alarm device having a socket portion for connection to a ceiling and a fire alarm insert for mechanical and electrical connection to the socket portion. Connection is made by virtue of mutual rotations.
  • the invention is directed towards providing a mains-powered alarm device which is simpler to install and which may be opened after installation in a simpler and more convenient manner. Another object is to provide for improved safety by minimising possible exposure to mains supply.
  • an alarm device comprising:-
  • the mechanical and electrical connection means comprise means for providing connection in a mutual sliding action.
  • the sliding action is in the plane of the base.
  • the mechanical connection means comprises engagement members which interleave and are configured to press the alarm body against the base as they slide relative to each other.
  • the base comprises an aperture and the alarm body comprises a lip extending in the plane of the base and spaced-apart from the alarm body, the aperture and the lip being configured so that the lip is initially pushed into the aperture and is subsequently pushed across in the plane of the base to overlie the base adjacent the aperture.
  • the mechanical connection means further comprises a snap-fitting safety catch which automatically engages when the mechanical connection is complete and may be disengaged only with use of a tool.
  • the electrical connection means comprises a plurality of alarm body terminals in the base terminal block, each alarm body terminal comprising a pair of leaves spring-biassed together, and terminal spades on the alarm body each associated with an alarm body terminal, the terminals and terminal spades being configured whereby the leaves press against a terminal spade which has been pushed into the terminal.
  • the alarm body terminal leaves are splayed to form a mouth to receive a spade.
  • the leaves are housed in a terminal block cover which comprises a tapered mouth for receiving a spade for each terminal.
  • the base terminal block comprises a protective cover which covers the mains terminals and comprises lock means for snap-fitting engagement with the base.
  • the cover lock means is configured for opening only with a tool.
  • the base terminal block comprises an integral component comprising the alarm body terminals and the mains terminals.
  • the alarm body comprises a compartment in an upper side for a back-up battery.
  • the battery compartment comprises safety means to prevent connection of the alarm body to the base without a battery present.
  • the safety means comprises a spring-biassed prong which is retracted by a battery inserted in the compartment.
  • the sensor circuit comprises a battery power supply comprising an alarm body terminal whereby the power is drawn from the battery only when the alarm body is electrically connected to the base and mains power is absent.
  • an alarm device 1 comprising a base 2 and an alarm body 3.
  • the base 2 comprises a base plate 10 having screw fastener apertures 11 for connection to a wall or ceiling.
  • the base 2 is shown connected to a ceiling.
  • a mains cable 12 is connected beneath a protective cover 13 to a terminal block 14.
  • a foan pad 9 overlies the base plate 10, and is pressed into position by the base plate 10 against the ceiling. This prevents air draughts and dust from cable openings from affecting performance of the device 1 by, for example, blowing smoke away from the sensor.
  • the base 2 also comprises means for mechanical connection to the alarm body 3, namely a set of four connection apertures 15 and a snap-fitting fastener 16.
  • the base 2 also comprises a recess 17 for a warning and/or instruction indicia.
  • the rear of the base plate 10 has ribs 18. This view also shows a mains cable aperture 19 which receives a mains cable 12 connected to the terminal block 14.
  • the base 2 also comprises a side wall 20 having a rectangular section 21 which can be broken out for receiving a mains cable 12 from the side.
  • a rectangular-shaped protruding block 21 is integrally moulded with the base plate 10.
  • the terminal block 14 comprises mains terminals 25 which are of the type having a leaf terminal 26 which is pressed under the action of a screw against individual wires 27 of the mains cable 12.
  • the mains terminals 25 are covered by the protective cover 13.
  • the cover 13 snap-fits into place with a fastener 29 which may only be opened by use of a tool, in this case a screwdriver.
  • the terminals 25 are formed by terminal units 30 which provide both the mains terminals 25 (with the leaf terminals 26) and alarm body terminals on the opposite side of the block 14.
  • each terminal unit 30 comprises a pair of resilient leaves 31 which are pressed together and splayed outwardly at the front to form a mouth 32.
  • the leaves 31 are connected by a bridge 33 to the mains terminal leaf 26 within the block 14.
  • the base 2 also comprises, as shown most clearly in Fig. 4, a terminal 40 for "parking" an earth wire if required for looping purposes.
  • a terminal unit 35 for connection of the battery is illustrated.
  • This comprises a pair of splayed leaves 36, much like the leaves 31 of the unit 30.
  • the leaves 36 connect by a transverse bridge 38 to a mains terminal leaf 37.
  • Fig. 8 shows the two main parts of the alarm body 3, and Fig. 9 shows the side which engages the cover 2.
  • the alarm body 3 comprises a front ventilated casing part 50 and a rear circuit support part 51.
  • the front part 50 comprises circumferential vents 50 and front vents 53.
  • This part also comprises a test button 54 and two LED openings 55.
  • the alarm body 3 also comprises a battery compartment 60 and it houses a sensor circuit 56 which supports the terminal spades 39.
  • the battery compartment is not needed in a different version of the product having rechargeable batteries which do not need to the replaced.
  • the alarm body 3 comprises a safety catch 71 for engagement with the catch 16 of the base 2. Once these are connected, they may only be opened by use of a screwdriver.
  • the battery compartment 60 comprises a safety catch 61 having a prong 62 which protrudes upwardly and prevents the alarm body 3 from being engaged to the base 2 unless a battery is present and presses the prong 62 into a retracted position.
  • the base 2 comprises an aperture 63 for receiving the prong 61 if it is not retracted.
  • the alarm body 3 comprises a set of four lips 70 which are spaced-apart from the rear surface of the alarm body and which are in the plane of this surface and of the base 2. The lips 70 are tapered.
  • the electrician installs the alarm device 1 by training a mains cable 3 through the aperture 19 of the base 2 and subsequently securing the base 2 to the ceiling or wall using the screw fastener apertures 11. He or she then uses a screwdriver to disengage the safety catch 29 and remove the mains terminals protective cover 13. The individual wires 27 of the mains cable 12 are connected to the terminals 25 in a conventional manner. The protective cover 13 is then snap-fitted into position again.
  • the alarm body 3 be brought into proximity to the base 2 and pushed against it until the lips 70 of the alarm body 3 are engaged within the apertures 15 of the base 2. Then the electrician simply pushes the alarm body 3 in a sliding action sideways (as shown in Fig. 1) in the plane of the wall or ceiling. This pushing action causes the lips 70 to overlie the edges of the apertures 15. The corresponding surfaces are tapered so that the sliding action causes the alarm body to be pressed tighter against the base 2. Also, this action causes the terminal spades 39 to enter the mouths 32 and 35 of the alarm body terminals to create an electrical connection as shown in Fig. 7.
  • the leaves 31 and 36 of the alarm body terminals are housed within the body of the terminal block 14, which itself includes tapered openings which tend to guide the spades 39 towards the mouths 32 of the alarm body terminals.
  • the fixtures 16 and 71 of the base and the alarm body respectively snap into engagement. This gives a positive indication to the electrician that the alarm body has been fully pushed home.
  • the user can do this very simply without exposure to mains power. He or she simply disengages the fixtures 71 and 16 using a screwdriver and then pushes the alarm body 3 in the opposite direction until the lips 70 disengage from the sides of the apertures 15 and the terminal spades 39 have separated from the alarm body terminals in the base. The battery may then be simply replaced or any other maintenance action may be carried out. The alarm body 3 is then re-connected in the same manner as during installation.
  • the invention provides for installation of an alarm device in a very simple and effective manner.
  • An electrician may connect the base mechanically and electrically in a simple and conventional manner. All that is then necessary is that the alarm body 3 be pushed into engagement. This provides excellent safety by virtue of the manner in which the mains terminals are covered and also because the electrical contacts are automatically made by pushing the mains body home.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Alarm Systems (AREA)
EP00650025A 1999-04-13 2000-03-31 Dispositif d'alarme Expired - Lifetime EP1045354B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IE990304 1999-04-13
IE990304 1999-04-13
IE990427 1999-05-26
IE19990427A IE990427A1 (en) 1999-04-13 1999-05-26 An Alarm Device

Publications (3)

Publication Number Publication Date
EP1045354A2 true EP1045354A2 (fr) 2000-10-18
EP1045354A3 EP1045354A3 (fr) 2001-03-07
EP1045354B1 EP1045354B1 (fr) 2003-07-16

Family

ID=26320244

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00650025A Expired - Lifetime EP1045354B1 (fr) 1999-04-13 2000-03-31 Dispositif d'alarme

Country Status (4)

Country Link
EP (1) EP1045354B1 (fr)
AT (1) ATE245298T1 (fr)
DE (1) DE60003865D1 (fr)
IE (1) IE990427A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1235193A2 (fr) * 2001-02-15 2002-08-28 Maple Chase Company Interrupteur marche-arrêt multi-usage pour un détecteur de danger
GB2396752A (en) * 2002-12-24 2004-06-30 Apollo Fire Detectors Ltd Connector base for detector
EP1573696A1 (fr) * 2002-12-18 2005-09-14 Clipsal Australia Pty Ltd. Dispositif de detection convenant pour des detecteurs de fumee
EP1854085A2 (fr) * 2005-02-28 2007-11-14 Jason R. Rosenblatt Ensemble de detection monte a fleur d'etats anormaux de l'air ambiant
WO2008125834A2 (fr) 2007-04-11 2008-10-23 Fireangel Limited Alarme d'incendie et dispositifs analogues
WO2008110785A3 (fr) * 2007-03-13 2009-01-08 Thorn Security Détecteur
EP2804161A1 (fr) * 2013-05-17 2014-11-19 Hager Security Coffret comprenant un socle, un boîtier et un organe rotatif d'assemblage
EP3321903A1 (fr) * 2016-10-06 2018-05-16 Robert Bosch GmbH Dispositif de détection d'incendie pour un bâtiment, procédé de montage du dispositif de détection d'incendie ainsi qu'un bâtiment doté ??du dispositif de détection d'incendie
CN117501331A (zh) * 2021-05-14 2024-02-02 简单安全有限公司 用于检测器的电池变动指示器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH633122A5 (en) * 1978-06-27 1982-11-15 Cerberus Ag Connecting device on an alarm consisting of a base part and an alarm part with sensor
GB2137390A (en) * 1983-03-07 1984-10-03 Emhart Ind Sensor assembly
GB2276970A (en) * 1993-04-06 1994-10-12 Dee Electronics Limited Gas alarm
GB2292489A (en) * 1994-08-20 1996-02-21 Aphel Ltd Electrical distribution system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH633122A5 (en) * 1978-06-27 1982-11-15 Cerberus Ag Connecting device on an alarm consisting of a base part and an alarm part with sensor
GB2137390A (en) * 1983-03-07 1984-10-03 Emhart Ind Sensor assembly
GB2276970A (en) * 1993-04-06 1994-10-12 Dee Electronics Limited Gas alarm
GB2292489A (en) * 1994-08-20 1996-02-21 Aphel Ltd Electrical distribution system

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1235193A3 (fr) * 2001-02-15 2003-11-26 Maple Chase Company Interrupteur marche-arrêt multi-usage pour un détecteur de danger
EP1235193A2 (fr) * 2001-02-15 2002-08-28 Maple Chase Company Interrupteur marche-arrêt multi-usage pour un détecteur de danger
CN100437652C (zh) * 2002-12-18 2008-11-26 奇胜(澳大利亚)有限公司 适用于烟雾报警器的检测装置
EP1573696A1 (fr) * 2002-12-18 2005-09-14 Clipsal Australia Pty Ltd. Dispositif de detection convenant pour des detecteurs de fumee
EP1573696A4 (fr) * 2002-12-18 2006-03-15 Clipsal Australia Pty Ltd Dispositif de detection convenant pour des detecteurs de fumee
EP1783711A1 (fr) * 2002-12-18 2007-05-09 Clipsal Australia Pty Ltd. Ensemble de détecteur adapté aux détecteurs de fumée
AU2003287769B2 (en) * 2002-12-18 2008-05-29 Clipsal Australia Pty Ltd Detector assembly suited to smoke alarms
GB2396752A (en) * 2002-12-24 2004-06-30 Apollo Fire Detectors Ltd Connector base for detector
EP1854085A4 (fr) * 2005-02-28 2010-12-01 Jason R Rosenblatt Ensemble de detection monte a fleur d'etats anormaux de l'air ambiant
EP1854085A2 (fr) * 2005-02-28 2007-11-14 Jason R. Rosenblatt Ensemble de detection monte a fleur d'etats anormaux de l'air ambiant
WO2008110785A3 (fr) * 2007-03-13 2009-01-08 Thorn Security Détecteur
US8154415B2 (en) 2007-03-13 2012-04-10 Simplexgrinnell Lp Detector
WO2008125834A2 (fr) 2007-04-11 2008-10-23 Fireangel Limited Alarme d'incendie et dispositifs analogues
WO2008125834A3 (fr) * 2007-04-11 2008-12-11 Fireangel Ltd Alarme d'incendie et dispositifs analogues
EP2804161A1 (fr) * 2013-05-17 2014-11-19 Hager Security Coffret comprenant un socle, un boîtier et un organe rotatif d'assemblage
FR3005802A1 (fr) * 2013-05-17 2014-11-21 Hager Security Coffret comprenant un socle, un boitier et un organe rotatif d'assemblage
EP3321903A1 (fr) * 2016-10-06 2018-05-16 Robert Bosch GmbH Dispositif de détection d'incendie pour un bâtiment, procédé de montage du dispositif de détection d'incendie ainsi qu'un bâtiment doté ??du dispositif de détection d'incendie
CN117501331A (zh) * 2021-05-14 2024-02-02 简单安全有限公司 用于检测器的电池变动指示器

Also Published As

Publication number Publication date
IE990427A1 (en) 2000-11-15
ATE245298T1 (de) 2003-08-15
EP1045354B1 (fr) 2003-07-16
DE60003865D1 (de) 2003-08-21
EP1045354A3 (fr) 2001-03-07

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