EP1039427B1 - Fire detector - Google Patents

Fire detector Download PDF

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Publication number
EP1039427B1
EP1039427B1 EP99105749A EP99105749A EP1039427B1 EP 1039427 B1 EP1039427 B1 EP 1039427B1 EP 99105749 A EP99105749 A EP 99105749A EP 99105749 A EP99105749 A EP 99105749A EP 1039427 B1 EP1039427 B1 EP 1039427B1
Authority
EP
European Patent Office
Prior art keywords
base
insert
detector
circuit board
housing
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.)
Expired - Lifetime
Application number
EP99105749A
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German (de)
French (fr)
Other versions
EP1039427A1 (en
Inventor
Peter Gruber
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.)
Siemens Building Technologies AG
Original Assignee
Siemens Schweiz AG
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
Priority to AT99105749T priority Critical patent/ATE361515T1/en
Priority to DE59914326T priority patent/DE59914326D1/en
Priority to ES99105749T priority patent/ES2287990T3/en
Priority to DK99105749T priority patent/DK1039427T3/en
Priority to EP99105749A priority patent/EP1039427B1/en
Application filed by Siemens Schweiz AG filed Critical Siemens Schweiz AG
Priority to CNB001047027A priority patent/CN1178181C/en
Priority to NO20001499A priority patent/NO20001499L/en
Publication of EP1039427A1 publication Critical patent/EP1039427A1/en
Application granted granted Critical
Publication of EP1039427B1 publication Critical patent/EP1039427B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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 present invention relates to a fire detector with a multi-pole connector strip having base and a usable in this and a sensor system and a circuit board with evaluation transmitter message insert, wherein the electrical connection between the socket and detector insert via a plug connection and for the preparation of this connection the detector insert relative is rotatable to the base.
  • WO 97/05586 describes a fire detector with a fixed base and a replaceable detector, which is secured for operation with the base by a first rotary ring to be rotated in a clockwise direction. By turning in a first direction, the detector can be placed in a waiting position. In this case, the electrical connections to the base part can be tested with a test voltage. By turning in a second direction, the detector is then brought into an operating position in which the detector is electrically connected to the base part.
  • a fire detector of this type described in DE-U-92 10 858.3 contains the existing example of a simple molded part detector base a multi-pin terminal block with the required sockets, and the detector insert has a contact pin strip with the corresponding pins on the terminal block at the onset of the detector (Detector insert plus detector hood) must be allocated forcibly.
  • the detector insert is rotatably arranged in the rotating detector hood and can be locked in its end position.
  • the detector insert on a circumferential side wall, which functions as a centering ring.
  • the detector hood is mechanically lockable on the detector base, wherein when inserting the detector, a locking cam formed on the detector hood is guided in an oblique slide guide of a locking guide. The latter is arranged on the detector hood such that when inserting and screwing in the detector, a vertical stroke for contacting is achieved.
  • both the locking mechanism with locking link and locking cam and the contact between terminal block and contact pins by a vertical lifting movement to an increase in manufacturing costs, which is undoubtedly disadvantageous in a large-scale product such as a fire detector.
  • the contacting by a vertical lifting movement increases the manufacturing costs. Because on the one hand a significant design effort is required to bring the contact pin strip first by a rotary movement of the detector in the correct position in which it is aligned with the terminal block, but spaced therefrom, and then gently and yet in the vertical stroke movement sure to make the electrical contact. And on the other hand, this type of contacting requires pins that are directed in the vertical direction of the circuit board up, which requires the installation of a separate component on the circuit board required. This assembly of the separate component in turn requires an additional step.
  • the fire alarms of the type mentioned are now to be improved so that a significant reduction in manufacturing costs can be achieved without affecting the robustness or the handling of the detector, in particular the insertion of the detector insert in or its removal from the base ,
  • circuit board has a contact strip which is inserted in a translatory movement in the connector strip during rotation of the detector insert.
  • the contact strip has the advantage that no separate plug must be mounted on the circuit board, whereby the cost of this and its installation can be saved.
  • the translatory insertion movement of the contact strip of the printed circuit board into the connector strip due to a rotary movement of the detector insert has the advantage that the detectors suspended from the ceiling can be exchanged or picked with a conventional detector exchanger. Detector insert plus hood) can be used up to a height of about 7 m without tools such as ladders by a pressure and rotational movement in the base and removed from it.
  • a fire detector with a circuit board having a contact strip is known per se from EP-A-0 772 170. Since in this fire detector the insertion into the base by a vertical movement and a subsequent horizontal displacement of the detector insert, the detector can not be replaced with a conventional detector picker.
  • the inventive fire detector makes it possible that the insertion of the detector insert in the base takes place in a vertical linear movement, wherein the contact strip is brought into alignment with the connector strip of the socket position.
  • the inventive fire detector oriented guides for the translational movement of the circuit board are provided in the base perpendicular to the connector strip.
  • a preferred embodiment of the inventive fire detector is characterized in that the circuit board is arranged in a box-like housing, from which protrudes the contact strip, and that said guides are formed like a jaw and provided for guiding this housing.
  • a further preferred embodiment of the fire detector according to the invention is characterized in that the printed circuit board and said box-like housing form part of the sensor system.
  • a preferred embodiment of the inventive fire detector is characterized in that the detector insert has a housing part with a web-like bottom, on which the sensor system is guided pivotably.
  • Another preferred embodiment of the fire detector according to the invention is characterized in that the printed circuit board and / or the box-like housing on a corresponding contour of the web-like bottom adjacent and / or this encompassing and / or guided in this arranged guide slots guiding means.
  • the sensor system When rotating the detector insert relative to the base, the sensor system is pivoted by the interaction between the guide means and the guide slots in the housing part. In this case, the pivoting of the sensor system is converted by the linear positive guidance between the jaw-like guides of the base and the box-like housing in a translational movement of the circuit board and thus in a Einschiebterrorism the contact strip in the power strip.
  • the fire detector shown in the figures consists in a known manner of three main components, namely a base 1, a detector insert 2 and a hood 3.
  • the detector insert 2 is shown in Fig. 1 by a hatching with the right in the box below the figure Direction marked.
  • Figs. 3 and 4 in which the detector insert 2 also by a hatching is marked, the fire detector with respect to FIGS. 1 and 2 is rotated by 90 °, also in Fig. 3, the base 1 is omitted.
  • Fig. 4 of the base 1 only the visible from above outer edge R is located.
  • 5 and 6 show the sensor system 4 of the detector insert 2, which is inserted into a likewise part of the detector insert 2 forming housing part 5.
  • the base 1 is intended for mounting on the ceiling of a spacecraft to be monitored, this assembly is done either directly on a flush box or together with a corresponding base addition plaster.
  • the base 1, which consists essentially of a circular plate 6 and this up and down superior edge web 7, contains a connector strip 8, which is shown in dashed lines in Figs. 1, 3 and 4.
  • the detector insert 2 includes a provided for insertion into the connector strip 8 contact strip.
  • the sensor system 4 which is particularly apparent from FIGS. 5 and 6, consists of an opto-electronic, cylindrical measuring chamber M and of a printed circuit board L arranged in a box-like housing 10 with the evaluation electronics.
  • the measuring chamber M which is shielded at its edge against light from the outside, contains in a known manner a light source, a light receiver and a diaphragm and a so-called labyrinth, which prevent light rays can pass directly from the light source to the light receiver.
  • a lid 11 Down the measuring chamber M is covered by a lid 11 having a plurality of small openings for the passage of smoke into the measuring chamber M in the manner of a screen.
  • the measuring chamber M is not shown in detail; for further details, reference is made to EP-A-0 772 170 and EP-A-0 821 330.
  • an approximately elliptical guide plate 12 is arranged, whose function will be described later.
  • This disk may be formed, for example, on the measuring chamber M or on the lid 11; it is essential that they project beyond the edge of the measuring chamber M more strongly in the direction towards the contact strip 9 than in the other directions.
  • the arranged in the housing 10 printed circuit board L with the transmitter carries on its side facing the connector strip 8, the contact strip 9, which can be inserted by a displacement in the direction of arrow A of Fig. 5 in the connector strip 9 (see in particular Figs. 3 and 4).
  • An essential feature of the fire detector shown is now that this linear movement of the contact strip 9 of the housing 10 is effected by a rotational movement of the housing part 5 of the detector insert 2 relative to the base 1.
  • the sensor system 4 is slidably guided in the housing part 5 in the direction perpendicular to the connector strip 8, wherein means for converting a rotational or rotational movement of the housing part 5 are provided in a linear movement of the sensor system 4.
  • the housing part 5 consists of a downwardly narrowing wall 13, which is closed at the bottom by an inwardly projecting annular web 14.
  • the inner diameter of the web 14 is greater than the largest diameter of the disc 12, so that the sensor part 4 can be easily inserted from above into the housing part 5.
  • two guide wings 15 projecting radially outwards are attached to the measuring chamber M directly underneath the housing 10. These are L-shaped and shaped and dimensioned so that they overlap the web 14 below.
  • the web 14 is provided with corresponding groove-shaped recesses 16 for pushing through the guide wings 15.
  • the web 14 has a plurality, according to the representation three, openings, which are provided for locking of the fixing of the hood 3 on the housing part 5 locking lugs 17.
  • the hood 3 has at a distance from its the latching lugs 17 carrying the upper edge of a protruding hood inner web 18, which serves as a support for the disc 12 of the sensor system 4.
  • the guide vanes 15 are pushed through the recesses 16, whereby the disc 12 comes to rest on the web 18 of the hood 3 and the guide wings 15 engage under the web 14 of the housing part 5.
  • On the underside of the circuit board supporting the housing 10 four guide cam 19 are arranged, which contact the insertion of the sensor system 4 on the web 14 of the housing part 5 arranged cams 20 and are guided by this.
  • the sensor system 4 is fixed in the housing part 5 and in the hood 3 in the vertical direction and by the guide cam 19 and the cams 20, a certain pivot angle between the sensor system 4 and the housing part 5 is defined.
  • the insertion of the sensor system 4 in the housing part 5 takes place in the relative position shown in Figure 4; after insertion of the guide vanes 15 in the groove-shaped recesses 16, the sensor system 4 is pivoted in the direction of FIG. 3 and 4 in the counterclockwise direction by 24 ° and enters the position shown in Fig. 3.
  • the swivel angle of 24 ° is predetermined by the cams 20.
  • the base 1 has at its edge R three mutually offset by 120 ° groove guides 21, which serve to insert corresponding guide projections 22 of the detector insert 2.
  • the Nuten adjustmenten 21 and mecanicsvosprünge 22 are formed so that the detector insert 2 only in a single position in the base 1 can be used.
  • the detector insert 2 is in the position shown in Fig. 3, in which the guide projections 22 are aligned with the Nuten Adjusten 21, inserted into the base 1, wherein the contact strip 9 is parallel to the connector strip 8 and just before this comes to rest.
  • the detector insert 2 is pivoted with the hood 3 from the position shown in FIG. 3 in the position shown in FIG. 4, wherein the contact strip 9 is inserted into the connector strip 8.
  • This linear positive guide is provided by guide jaws 23 in the base 1 (FIG. 4) and by rail-shaped sliding projections 24 provided on the side walls of the box-like housing 10 educated.
  • the sliding projections 24 bearing side walls of the box-like housing 10 are flexible.
  • the mechanical locking and the electrical contact between base 1 and detector insert 2 is thus effected by a two-stage movement: In the first stage, the detector insert 2 is pushed in the vertical direction from below into the base 1, which due to the shape of the Nuten Adjusten 21 and the guide projections 22nd can only be done in a single relative position between base 1 and detector insert 2. Then takes place in the second stage by a rotary movement of the detector insert 2 on the one hand, the mechanical lock and on the other hand, the translational Einschiebterrorism the contact strip 9 in the connector strip 8 and thereby the production of the electrical contact between socket 1 and detector insert 2.
  • This two-stage movement can with a conventional detector exchanger in the form of a cup attached to a pole.

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  • 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)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

Evaluation electronics circuit board (L) has contact strip which is fitted into plug strip (8) of socket by translatory movement when alarm insert (2) is twisted to fit into socket (1). Fire alarm has socket (1) with multi pin plug strip (8) and alarm insert (2), to fit into socket, with circuit board (L) containing evaluation electronics. Electrical connection between socket and insert is by plug connection. To connect them, alarm insert is twisted relative to socket whereby contact strip of circuit board is pressed into plug strip in translatory movement. Socket has guides for the circuit board to be inserted. Circuit board is arranged in a box-like housing. Alarm insert is then set into socket in vertical linear movement, whereby contact strip is aligned with plug strip of socket.

Description

Die vorliegende Erfindung betrifft einen Brandmelder mit einem eine mehrpolige Steckerleiste aufweisenden Sockel und einem in diesen einsetzbaren und ein Sensorsystem sowie eine Leiterplatte mit einer Auswerteelektronik enthaltenden Meldereinsatz, wobei die elektrische Verbindung zwischen Sockel und Meldereinsatz über eine Steckverbindung erfolgt und zur Herstellung dieser Verbindung der Meldereinsatz relativ zum Sockel verdrehbar ist.The present invention relates to a fire detector with a multi-pole connector strip having base and a usable in this and a sensor system and a circuit board with evaluation transmitter message insert, wherein the electrical connection between the socket and detector insert via a plug connection and for the preparation of this connection the detector insert relative is rotatable to the base.

Dabei beschreibt die WO 97/05586 einen Brandmelder mit einem festen Sockel und einen austauschbaren Detektor, welcher für den Betrieb mit der Basis durch ein in Uhrzeigersinn zu drehenden ersten Rotationsring gesichert ist. Durch Drehen in eine erste Richtung kann der Detektor in eine Wartestellung gebracht werden. Dabei können die elektrischen Verbindungen zum Sockelteil mit einer Testspannung geprüft werden. Durch Drehen in eine zweite Richtung wird der Detektor dann in eine Betriebsstellung gebracht, in der der Detektor mit dem Sockelteil elektrisch verbunden ist.WO 97/05586 describes a fire detector with a fixed base and a replaceable detector, which is secured for operation with the base by a first rotary ring to be rotated in a clockwise direction. By turning in a first direction, the detector can be placed in a waiting position. In this case, the electrical connections to the base part can be tested with a test voltage. By turning in a second direction, the detector is then brought into an operating position in which the detector is electrically connected to the base part.

Bei einem im DE-U-92 10 858.3 beschriebenen Brandmelder dieser Art enthält der beispielsweise aus einem einfachen Spritzteil bestehende Meldersockel einen mehrpoligen Anschlussblock mit den erforderlichen Steckbuchsen, und der Meldereinsatz weist eine Kontaktstiftleiste mit den entsprechenden Kontaktstiften auf, die dem Anschlussblock beim Einsetzen des Melders (Meldereinsatz plus Melderhaube) zwangsweise zugeordnet werden. Der Meldereinsatz ist drehbar in der umlaufenden Melderhaube angeordnet und in seiner Endstellung arretierbar. Zu diesem Zweck weist der Meldereinsatz eine umlaufende Seitenwand auf, die als Zentrierungsring funiert. Die Melderhaube ist auf dem Meldersockel mechanisch verriegelbar, wobei beim Einsetzen des Melders eine an der Melderhaube angeformte Verriegelungsnocke in einer schräg verlaufenden Kulissenführung einer Verriegelungskulisse geführt ist. Die letztere ist an der Melderhaube derart angeordnet, dass beim Einsetzen und Eindrehen des Melders ein vertikaler Hub für die Kontaktierung erreicht wird.In a fire detector of this type described in DE-U-92 10 858.3 contains the existing example of a simple molded part detector base a multi-pin terminal block with the required sockets, and the detector insert has a contact pin strip with the corresponding pins on the terminal block at the onset of the detector (Detector insert plus detector hood) must be allocated forcibly. The detector insert is rotatably arranged in the rotating detector hood and can be locked in its end position. For this purpose, the detector insert on a circumferential side wall, which functions as a centering ring. The detector hood is mechanically lockable on the detector base, wherein when inserting the detector, a locking cam formed on the detector hood is guided in an oblique slide guide of a locking guide. The latter is arranged on the detector hood such that when inserting and screwing in the detector, a vertical stroke for contacting is achieved.

Abgesehen von einer gewissen Gefahr der Beschädigung des Verriegelungsmechanismus bei unsachgemässer Behandlung, führt sowohl der Verriegelungsmechanismus mit Verriegelungskulisse und Verriegelungsnocke als auch die Kontaktierung zwischen Anschlussblock und Kontaktstiften durch eine vertikale Hubbewegung zu einer Erhöhung der Herstellkosten, was bei einem Grosserienprodukt wie einem Brandmelder zweifellos nachteilig ist.Apart from a certain risk of damage to the locking mechanism with improper handling, both the locking mechanism with locking link and locking cam and the contact between terminal block and contact pins by a vertical lifting movement to an increase in manufacturing costs, which is undoubtedly disadvantageous in a large-scale product such as a fire detector.

Insbesondere die Kontaktierung durch eine vertikale Hubbewegung erhöht die Herstellkosten. Denn einerseits ist ein nicht unbedeutender konstruktiver Aufwand erforderlich, um die Kontaktstiftleiste zuerst durch eine Drehbewegung des Melders in die richtige Position zu bringen, in der sie zwar mit dem Anschlussblock fluchtet, von diesem aber beabstandet ist, und dann bei der vertikalen Hubbewegung schonend und doch sicher den elektrischen Kontakt herzustellen. Und andererseits benötigt diese Art der Kontaktierung Kontaktstifte, die in vertikaler Richtung von der Leiterplatte nach oben gerichtet sind, was die Montage eines separaten Bauteils auf der Leiterplatte erforderlich macht. Diese Montage des separaten Bauteils wiederum erfordert einen zusätzlichen Arbeitsschritt.In particular, the contacting by a vertical lifting movement increases the manufacturing costs. Because on the one hand a significant design effort is required to bring the contact pin strip first by a rotary movement of the detector in the correct position in which it is aligned with the terminal block, but spaced therefrom, and then gently and yet in the vertical stroke movement sure to make the electrical contact. And on the other hand, this type of contacting requires pins that are directed in the vertical direction of the circuit board up, which requires the installation of a separate component on the circuit board required. This assembly of the separate component in turn requires an additional step.

Durch die Erfindung sollen nun die Brandmelder der eingangs genannten Art so verbessert werden, dass eine merkbare Reduktion der Herstellkosten erzielt werden kann, ohne dass die Robustheit oder die Handhabbarkeit des Melders, insbesondere das Einsetzen des Meldereinsatzes in oder dessen Herausnehmen aus dem Sockel, beeinträchtigt wird.With the invention, the fire alarms of the type mentioned are now to be improved so that a significant reduction in manufacturing costs can be achieved without affecting the robustness or the handling of the detector, in particular the insertion of the detector insert in or its removal from the base ,

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Leiterplatte eine Kontaktleiste aufweist, welche beim beim Verdrehen des Meldereinsatzes in einer translatorischen Bewegung in die Steckerleiste eingeschoben wird.This object is achieved according to the invention in that the circuit board has a contact strip which is inserted in a translatory movement in the connector strip during rotation of the detector insert.

Die Kontaktleiste hat den Vorteil, dass auf der Leiterplatte kein separater Stecker montiert werden muss, wodurch die Kosten für diesen und dessen Montage eingespart werden. Die translatorische Einschiebbewegung der Kontaktleiste der Leiterplatte in die Steckerleiste aufgrund einer Drehbewegung des Meldereinsatzes hat den Vorteil, dass die an der Decke hängenden Melder mit einem üblichen Melderaustauscher ausgetauscht oder gepflückt" werden können. Diese Melderaustauscher sind an einer Stange befestigte Becher, mit denen Brandmelder (Meldereinsatz plus Haube) bis zu einer Höhe von etwa 7 m ohne Hilfsmittel wie Leitern durch eine Druck- und Drehbewegung in den Sockel eingesetzt und aus diesem entfernt werden können.The contact strip has the advantage that no separate plug must be mounted on the circuit board, whereby the cost of this and its installation can be saved. The translatory insertion movement of the contact strip of the printed circuit board into the connector strip due to a rotary movement of the detector insert has the advantage that the detectors suspended from the ceiling can be exchanged or picked with a conventional detector exchanger. Detector insert plus hood) can be used up to a height of about 7 m without tools such as ladders by a pressure and rotational movement in the base and removed from it.

Ein Brandmelder mit einer eine Kontaktleiste aufweisenden Leiterplatte ist aus der EP-A-0 772 170 an sich bekannt. Da bei diesem Brandmelder das Einsetzen in den Sockel durch eine Vertikalbewegung und eine anschliessende Horizontalverschiebung des Meldereinsatzes erfolgt, kann der Melder aber nicht mit einem üblichen Melderpflücker ausgetauscht werden.A fire detector with a circuit board having a contact strip is known per se from EP-A-0 772 170. Since in this fire detector the insertion into the base by a vertical movement and a subsequent horizontal displacement of the detector insert, the detector can not be replaced with a conventional detector picker.

Der erfindungsgemässe Brandmelder ermöglicht es, dass das Einsetzen des Meldereinsatzes in den Sockel in einer vertikalen Linearbewegung erfolgt, wobei die Kontaktleiste in eine mit der Steckerleiste des Sockels fluchtende Stellung gebracht wird.The inventive fire detector makes it possible that the insertion of the detector insert in the base takes place in a vertical linear movement, wherein the contact strip is brought into alignment with the connector strip of the socket position.

Gemäss einer bevorzugten Ausführungsform des erfindungsgemässen Brandmelders sind im Sockel senkrecht zur Steckerleiste orientierte Führungen für die translatorische Bewegung der Leiterplatte vorgesehen.According to a preferred embodiment of the inventive fire detector oriented guides for the translational movement of the circuit board are provided in the base perpendicular to the connector strip.

Eine bevorzugte Ausführungsform des erfindungsgemässen Brandmelders ist dadurch gekennzeichnet, dass die Leiterplatte in einem schachtelartigen Gehäuse angeordnet ist, aus welchem die Kontaktleiste vorsteht, und dass die genannten Führungen backenartig ausgebildet und zur Führung dieses Gehäuses vorgesehen sind.A preferred embodiment of the inventive fire detector is characterized in that the circuit board is arranged in a box-like housing, from which protrudes the contact strip, and that said guides are formed like a jaw and provided for guiding this housing.

Eine weitere bevorzugte Ausführungsform des erfindungsgemässen Brandmelders ist dadurch gekennzeichnet, dass die Leiterplatte und das genannte schachtelartige Gehäuse Bestandteil des Sensorsystems bilden.A further preferred embodiment of the fire detector according to the invention is characterized in that the printed circuit board and said box-like housing form part of the sensor system.

Eine bevorzugte Ausführungsform des erfindungsgemässen Brandmelders ist dadurch gekennzeichnet, dass der Meldereinsatz einen Gehäuseteil mit einem stegartigen Boden aufweist, auf welchem das Sensorsystem verschwenkbar geführt ist.A preferred embodiment of the inventive fire detector is characterized in that the detector insert has a housing part with a web-like bottom, on which the sensor system is guided pivotably.

Eine andere bevorzugte Ausführungsform des erfindungsgemässen Brandmelders ist dadurch gekennzeichnet, dass die Leiterplatte und/oder das schachtelartige Gehäuse an einer entsprechenden Kontur des stegartigen Bodens anliegende und/oder diesen umgreifende und/oder in auf diesem angeordneten Führungskulissen geführte Führungsmittel aufweist.Another preferred embodiment of the fire detector according to the invention is characterized in that the printed circuit board and / or the box-like housing on a corresponding contour of the web-like bottom adjacent and / or this encompassing and / or guided in this arranged guide slots guiding means.

Beim Verdrehen des Meldereinsatzes relativ zum Sockel wird das Sensorsystem durch das Zusammenwirken zwischen den Führungsmitteln und den Führungskulissen im Gehäuseteil verschwenkt. Dabei wird durch die Linear-Zwangsführung zwischen den backenartigen Führungen des Sockels und dem schachtelartigen Gehäuse die Verschwenkung des Sensorsystems in eine translatorische Bewegung der Leiterplatte und damit in eine Einschiebbewegung der Kontaktleiste in die Steckerleiste umgewandelt.When rotating the detector insert relative to the base, the sensor system is pivoted by the interaction between the guide means and the guide slots in the housing part. In this case, the pivoting of the sensor system is converted by the linear positive guidance between the jaw-like guides of the base and the box-like housing in a translational movement of the circuit board and thus in a Einschiebbewegung the contact strip in the power strip.

Im folgenden wird die Erfindung anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert; es zeigt:

Fig. 1
einen Axialschnitt durch einen erfindungsgemässen Brandmelder, wobei der Meldereinsatz nicht in den Sockel eingesetzt ist,
Fig. 2
einen Axialschnitt durch den Brandmelder von Fig. 1, wobei der Meldereinsatz in den Sockel eingesetzt ist,
Fig. 3
eine Ansicht des Meldereinsatzes von oben in seiner nicht mit dem Sockel verriegelten Stellung,
Fig. 4
eine Ansicht des Meldereinsatzes von oben in seiner mit dem Sockel verriegelten Stellung,
Fig. 5
eine Draufsicht auf einen Teil des Meldereinsatzes; und
Fig. 6
eine Ansicht in Richtung des Pfeiles VI von Fig. 5.
In the following the invention will be explained in more detail with reference to an embodiment shown in the drawings; it shows:
Fig. 1
an axial section through a fire detector according to the invention, wherein the detector insert is not inserted into the base,
Fig. 2
an axial section through the fire detector of Figure 1, wherein the detector insert is inserted into the base,
Fig. 3
a view of the detector insert from above in its not locked to the socket position,
Fig. 4
a view of the detector insert from above in its locked to the base position,
Fig. 5
a plan view of a part of the detector insert; and
Fig. 6
a view in the direction of arrow VI of Fig. 5.

Der in den Figuren dargestellte Brandmelder besteht in bekannter Weise aus drei Hauptbestandteilen, und zwar aus einem Sockel 1, einem Meldereinsatz 2 und einer Haube 3. Der Meldereinsatz 2 ist in Fig. 1 durch eine Schraffur mit der in dem Kästchen rechts unterhalb der Figur gezeigten Richtung markiert. In den Fig. 3 und 4, in denen der Meldereinsatz 2 ebenfalls durch eine Schraffur markiert ist, ist der Brandmelder gegenüber den Fig. 1 und 2 um 90° verdreht, ausserdem ist in den Fig. 3 der Sockel 1 weggelassen. In Fig. 4 ist vom Sockel 1 lediglich der von oben sichtbare äussere Rand R eingezeichnet. Die Fig. 5 und 6 zeigen das Sensorsystem 4 des Meldereinsatzes 2, welches in einen ebenfalls Teil des Meldereinsatzes 2 bildenden Gehäuseteil 5 eingesetzt ist.The fire detector shown in the figures consists in a known manner of three main components, namely a base 1, a detector insert 2 and a hood 3. The detector insert 2 is shown in Fig. 1 by a hatching with the right in the box below the figure Direction marked. In Figs. 3 and 4, in which the detector insert 2 also by a hatching is marked, the fire detector with respect to FIGS. 1 and 2 is rotated by 90 °, also in Fig. 3, the base 1 is omitted. In Fig. 4 of the base 1, only the visible from above outer edge R is located. 5 and 6 show the sensor system 4 of the detector insert 2, which is inserted into a likewise part of the detector insert 2 forming housing part 5.

Der Sockel 1 ist zur Montage an der Decke eines zu überwachenden Raumers vorgesehen, wobei diese Montage entweder direkt auf eine Unterputzdose oder zusammen mit einem entsprechenden Sockelzusatz aufputz erfolgt. Der Sockel 1, der im wesentlichen aus einer kreisförmigen Platte 6 und einem diese nach oben und unten überragenden Randsteg 7 besteht, enthält eine Steckerleiste 8, die in den Fig. 1, 3 und 4 gestrichelt eingezeichnet ist. Der Meldereinsatz 2 enthält eine zum Einschieben in die Steckerleiste 8 vorgesehene Kontaktleiste 9.The base 1 is intended for mounting on the ceiling of a spacecraft to be monitored, this assembly is done either directly on a flush box or together with a corresponding base addition plaster. The base 1, which consists essentially of a circular plate 6 and this up and down superior edge web 7, contains a connector strip 8, which is shown in dashed lines in Figs. 1, 3 and 4. The detector insert 2 includes a provided for insertion into the connector strip 8 contact strip. 9

Das Sensorsystem 4, das besonders aus den Figuren 5 und 6 gut ersichtlich ist, besteht aus einer opto-elektronischen, zylindrischen Messkammer M und aus einer in einem schachtelartigen Gehäuse 10 angeordneten Leiterplatte L mit der Auswerteelektronik. Die Messkammer M, die an ihrem Rand gegen Licht von aussen abgeschirmt ist, enthält in bekannter Weise eine Lichtquelle, einen Lichtempfänger sowie eine Blende und ein sogenanntes Labyrinth, welche verhindern, dass Lichtstrahlen auf direktem Weg von der Lichtquelle zum Lichtempfänger gelangen können.The sensor system 4, which is particularly apparent from FIGS. 5 and 6, consists of an opto-electronic, cylindrical measuring chamber M and of a printed circuit board L arranged in a box-like housing 10 with the evaluation electronics. The measuring chamber M, which is shielded at its edge against light from the outside, contains in a known manner a light source, a light receiver and a diaphragm and a so-called labyrinth, which prevent light rays can pass directly from the light source to the light receiver.

Nach unten ist die Messkammer M durch einen Deckel 11 abgedeckt, der in der Art eines Siebes eine Vielzahl kleiner Öffnungen zum Durchtritt von Rauch in die Messkammer M aufweist. Die Messkammer M ist nicht im Detail dargestellt; bezüglich näherer Einzelheiten wird auf die EP-A-0 772 170 und die EP-A-0 821 330 verwiesen. Zwischen der Messkammer M und dem Deckel 11 ist eine annähernd elliptische Führungsscheibe 12 angeordnet, deren Funktion später beschrieben wird. Diese Scheibe kann beispielsweise an die Messkammer M oder an den Deckel 11 angeformt sein; wesentlich ist, dass sie in der Richtung zur Kontaktleiste 9 hin den Rand der Messkammer M stärker überragt als in den anderen Richtungen.Down the measuring chamber M is covered by a lid 11 having a plurality of small openings for the passage of smoke into the measuring chamber M in the manner of a screen. The measuring chamber M is not shown in detail; for further details, reference is made to EP-A-0 772 170 and EP-A-0 821 330. Between the measuring chamber M and the lid 11, an approximately elliptical guide plate 12 is arranged, whose function will be described later. This disk may be formed, for example, on the measuring chamber M or on the lid 11; it is essential that they project beyond the edge of the measuring chamber M more strongly in the direction towards the contact strip 9 than in the other directions.

Die im Gehäuse 10 angeordnete Leiterplatte L mit der Auswerteelektronik trägt an ihrer der Steckerleiste 8 zugewandten Seite die Kontaktleiste 9, die durch eine Verschiebung in Richtung des Pfeiles A von Fig. 5 in die Steckerleiste 9 einschiebbar ist (siehe dazu insbesondere die Fig. 3 und 4). Eine wesentliche Eigenschaft des dargestellten Brandmelders besteht nun darin, dass diese Linearbewegung der Kontaktleiste 9 des Gehäuses 10 durch eine Rotationsbewegung des Gehäuseteils 5 des Meldereinsatzes 2 relativ zum Sockel 1 bewirkt wird. Zu diesem Zweck ist das Sensorsystem 4 im Gehäuseteil 5 in der Richtung senkrecht zur Steckerleiste 8 verschiebbar geführt, wobei Mittel zur Umwandlung einer Rotations- oder Verdrehbewegung des Gehäuseteils 5 in eine Linearbewegung des Sensorsystems 4 vorgesehen sind.The arranged in the housing 10 printed circuit board L with the transmitter carries on its side facing the connector strip 8, the contact strip 9, which can be inserted by a displacement in the direction of arrow A of Fig. 5 in the connector strip 9 (see in particular Figs. 3 and 4). An essential feature of the fire detector shown is now that this linear movement of the contact strip 9 of the housing 10 is effected by a rotational movement of the housing part 5 of the detector insert 2 relative to the base 1. For this purpose, the sensor system 4 is slidably guided in the housing part 5 in the direction perpendicular to the connector strip 8, wherein means for converting a rotational or rotational movement of the housing part 5 are provided in a linear movement of the sensor system 4.

Der Gehäuseteil 5 besteht aus einer sich nach unten verengenden Wand 13, die unten durch einen nach innen ragenden, kreisringförmigen Steg 14 abgeschlossen ist. Der Innendurchmesser des Stegs 14 ist grösser als der grösste Durchmesser der Scheibe 12, so dass der Sensorteil 4 problemlos von oben in den Gehäuseteil 5 eingesetzt werden kann. Wie den Fig. 1, 2, 5 und 6 zu entnehmen ist, sind an der Messkammer M direkt unterhalb des Gehäuses 10 zwei radial nach aussen abstehende Führungsflügel 15 befestigt. Diese sind L-förmig ausgebildet und so geformt und dimensioniert, dass sie den Steg 14 unten übergreifen. Der Steg 14 ist mit entspre-chenden nutenförmigen Ausnehmungen 16 zum Hindurchschieben der Führungsflügel 15 versehen.The housing part 5 consists of a downwardly narrowing wall 13, which is closed at the bottom by an inwardly projecting annular web 14. The inner diameter of the web 14 is greater than the largest diameter of the disc 12, so that the sensor part 4 can be easily inserted from above into the housing part 5. As can be seen in FIGS. 1, 2, 5 and 6, two guide wings 15 projecting radially outwards are attached to the measuring chamber M directly underneath the housing 10. These are L-shaped and shaped and dimensioned so that they overlap the web 14 below. The web 14 is provided with corresponding groove-shaped recesses 16 for pushing through the guide wings 15.

Der Steg 14 weist mehrere, darstellungsgemäss drei, Durchbrechungen auf, die zum Einrasten von zur Fixierung der Haube 3 am Gehäuseteil 5 dienenden Rastnasen 17 vorgesehen sind. Die Haube 3 weist im Abstand von ihrem die Rastnasen 17 tragenden oberen Rand einen ins Haubeninnere ragenden Steg 18 auf, der als Auflage für die Scheibe 12 des Sensorsystems 4 dient.The web 14 has a plurality, according to the representation three, openings, which are provided for locking of the fixing of the hood 3 on the housing part 5 locking lugs 17. The hood 3 has at a distance from its the latching lugs 17 carrying the upper edge of a protruding hood inner web 18, which serves as a support for the disc 12 of the sensor system 4.

Zum Einsetzen des Sensorsystems 4 in den Gehäuseteil 5 werden die Führungsflügel 15 durch die Ausnehmungen 16 geschoben, wodurch die Scheibe 12 auf dem Steg 18 der Haube 3 zum Aufliegen kommt und die Führungsflügel 15 den Steg 14 des Gehäuseteils 5 untergreifen. An der Unterseite des die Leiterplatte tragenden Gehäuses 10 sind vier Führungsnocken 19 angeordnet, die beim Einsetzen des Sensorsystems 4 auf dem Steg 14 des Gehäuseteils 5 angeordnete Steuerkurven 20 kontaktieren und durch diese geführt sind. Durch die Scheibe 12 und die Führungsflügel 15 ist das Sensorsystem 4 im Gehäuseteil 5 und in der Haube 3 in vertikaler Richtung fixiert und durch die Führungsnocken 19 und die Steuerkurven 20 ist ein bestimmter Schwenkwinkel zwischen Sensorsystem 4 und Gehäuseteil 5 definiert.To insert the sensor system 4 in the housing part 5, the guide vanes 15 are pushed through the recesses 16, whereby the disc 12 comes to rest on the web 18 of the hood 3 and the guide wings 15 engage under the web 14 of the housing part 5. On the underside of the circuit board supporting the housing 10 four guide cam 19 are arranged, which contact the insertion of the sensor system 4 on the web 14 of the housing part 5 arranged cams 20 and are guided by this. Through the disc 12 and the guide vanes 15, the sensor system 4 is fixed in the housing part 5 and in the hood 3 in the vertical direction and by the guide cam 19 and the cams 20, a certain pivot angle between the sensor system 4 and the housing part 5 is defined.

Das Einsetzen des Sensorsystems 4 in den Gehäuseteil 5 erfolgt in der in Fig. 4 gezeigten Relativposition; nach dem Einschieben der Führungsflügel 15 in die nutenförmigen Ausnehmungen 16 wird das Sensorsystem 4 in Blickrichtung der Fig. 3 und 4 im Gegenuhrzeigersinn um 24° verschwenkt und gelangt in die in Fig. 3 dargestellte Lage. Der Schwenkwinkel von 24° ist durch die Steuerkurven 20 vorgegeben. Beim Verschwenken des Sensorsystems 4 und im Anschluss daran ist das Sensorsystem 4 im Gehäuseteil 5 durch die Führungsflügel 15 und die Scheibe 12 geführt. Der so zusammengesetzte Meldereinsatz 2 wird dann, mit daran fixierter Haube 3, in den Sockel 1 eingesetzt.The insertion of the sensor system 4 in the housing part 5 takes place in the relative position shown in Figure 4; after insertion of the guide vanes 15 in the groove-shaped recesses 16, the sensor system 4 is pivoted in the direction of FIG. 3 and 4 in the counterclockwise direction by 24 ° and enters the position shown in Fig. 3. The swivel angle of 24 ° is predetermined by the cams 20. When pivoting the sensor system 4 and subsequently the sensor system 4 is guided in the housing part 5 by the guide vanes 15 and the disc 12. The composite detector insert 2 is then inserted into the base 1, with the hood 3 fixed thereto.

Der Sockel 1 weist an seinem Rand R drei gegeneinander um 120° versetzte Nutenführungen 21 auf, die zum Einschieben entsprechender Führungsvorsprünge 22 des Meldereinsatzes 2 dienen. Wie den Figuren 3 und 4 zu entnehmen ist, sind die Nutenführungen 21 und die Führungsvosprünge 22 so ausgebildet, dass der Meldereinsatz 2 nur in einer einzigen Position in den Sockel 1 eingesetzt werden kann. Der Meldereinsatz 2 wird in der in Fig. 3 dargestellten Lage, in der die Führungsvorsprünge 22 mit den Nutenführungen 21 fluchten, in den Sockel 1 eingeschoben, wobei die Kontaktleiste 9 parallel zur Steckerleiste 8 und knapp vor dieser zu liegen kommt.The base 1 has at its edge R three mutually offset by 120 ° groove guides 21, which serve to insert corresponding guide projections 22 of the detector insert 2. As can be seen in Figures 3 and 4, the Nutenführungen 21 and Führungsvosprünge 22 are formed so that the detector insert 2 only in a single position in the base 1 can be used. The detector insert 2 is in the position shown in Fig. 3, in which the guide projections 22 are aligned with the Nutenführungen 21, inserted into the base 1, wherein the contact strip 9 is parallel to the connector strip 8 and just before this comes to rest.

Anschliessend wird der Meldereinsatz 2 mit der Haube 3 von der in Fig. 3 dargestellten Position in die in Fig. 4 dargestellte Lage verschwenkt, wobei die Kontaktleiste 9 in die Steckerleiste 8 eingeschoben wird. Zwischen dem Sockel 1 und dem Meldereinsatz 2 besteht eine Linearzwangsführung für das lineare Einschieben der Kontaktleiste 9 in die Steckerleiste 8. Diese Linearzwangsführung ist durch Führungsbacken 23 im Sockel 1 (Fig. 4) und durch an den Seitenwänden des schachtelartigen Gehäuses 10 vorgesehene schienenförmige Gleitvorsprünge 24 gebildet. Die die Gleitvorsprünge 24 tragenden Seitenwände des schachtelartigen Gehäuses 10 sind flexibel ausgebildet.Subsequently, the detector insert 2 is pivoted with the hood 3 from the position shown in FIG. 3 in the position shown in FIG. 4, wherein the contact strip 9 is inserted into the connector strip 8. This linear positive guide is provided by guide jaws 23 in the base 1 (FIG. 4) and by rail-shaped sliding projections 24 provided on the side walls of the box-like housing 10 educated. The sliding projections 24 bearing side walls of the box-like housing 10 are flexible.

Wenn der Meldereinsatz 2 von der in Fig. 3 dargestellten Lage durch Verdrehen um 24°im Gegenuhrzeigersinn in die in Fig. 4 dargestellte Position gebracht wird, bewegen sich einerseits die Führungsnocken 19 entlang den Steuerkurven 20 wodurch eine Rotations-Achsenführung zwischen Sockel 1 und Meldereinsatz 2 bewirkt wird, und andererseits gleiten die Gleitvorsprünge 24 an den Führungsbacken 23 in Richtung des Pfeiles A (Fig. 5) nach links. Bei dieser Linearbewegung des schachtelartigen Gehäuses 10 und damit des Meldereinsatzes 2 wird die Kontaktleiste 9 in die Steckerleiste 8 eingeschoben, wodurch zwischen dem Sockel 1 und dem Meldereinsatz 2 eine elektrische Verbindung hergestellt wird. Nicht dargestellte Anschläge am Rand R des Sockels 1 begrenzen die Verdrehung des Meldereinsatzes 2 und damit die Linearbewegung der Kontaktleiste 9. Ausserdem sind ebenfalls nicht dargestellte Mittel zur mechanischen Verriegelung des Meldereinsatzes 2 im Sockel 1 vorgesehen. Diese Mittel sind in der letzten Phase der Verdrehung des Meldereinsatzes 2 wirksam.When the detector insert 2 is brought from the position shown in Fig. 3 by turning counterclockwise by 24 ° in the position shown in Fig. 4, on the one hand move the guide cam 19 along the cams 20 whereby a rotational axis guide between the base 1 and detector insert 2, and on the other hand, the sliding projections 24 slide on the guide jaws 23 in the direction of the arrow A (FIG. 5) to the left. In this linear movement of the box-like housing 10 and thus of the detector insert 2, the contact strip 9 is inserted into the connector strip 8, whereby an electrical connection is made between the base 1 and the detector insert 2. Not shown stops on the edge R of the base 1 limit the rotation of the detector insert 2 and thus the linear movement of the contact strip 9. In addition, also not shown means for mechanical locking of the detector insert 2 in the base 1 are provided. These funds are effective in the last phase of the rotation of the detector insert 2.

Die mechanische Verriegelung und die elektrische Kontaktierung zwischen Sockel 1 und Meldereinsatz 2 erfolgt also durch eine zweistufige Bewegung: In der ersten Stufe wird der Meldereinsatz 2 in vertikaler Richtung von unten in den Sockel 1 geschoben, was aufgrund der Form der Nutenführungen 21 und der Führungsvorsprünge 22 nur in einer einzigen Relativposition zwischen Sockel 1 und Meldereinsatz 2 erfolgen kann. Dann erfolgt in der zweiten Stufe durch eine Rotationsbewegung des Meldereinsatzes 2 einerseits die mechanische Verriegelung und andererseits die translatorische Einschiebbewegung der Kontaktleiste 9 in die Steckerleiste 8 und dadurch die Herstellung des elektrischen Kontakts zwischen Sockel 1 und Meldereinsatz 2. Diese zweistufige Bewegung kann mit einem üblichen Melderaustauscher in Form eines an einer Stange befestigten Bechers vorgenommen werden.The mechanical locking and the electrical contact between base 1 and detector insert 2 is thus effected by a two-stage movement: In the first stage, the detector insert 2 is pushed in the vertical direction from below into the base 1, which due to the shape of the Nutenführungen 21 and the guide projections 22nd can only be done in a single relative position between base 1 and detector insert 2. Then takes place in the second stage by a rotary movement of the detector insert 2 on the one hand, the mechanical lock and on the other hand, the translational Einschiebbewegung the contact strip 9 in the connector strip 8 and thereby the production of the electrical contact between socket 1 and detector insert 2. This two-stage movement can with a conventional detector exchanger in the form of a cup attached to a pole.

Claims (8)

  1. Fire detector having a base (1) comprising a multipolar plug connector (8) and a detector insert (2) which can be inserted herein and contains a sensor system (4) as well as a circuit board (L) having evaluation electronics, with the electrical connection being carried out between the base (1) and detector insert (2) by way of a plug connection (8,9) and the detector insert (2) being twistable relative to the base (1) in order to establish this connection, characterised in that the circuit board (L) comprises a contact strip (9), which is inserted in a linear movement into the plug connector (8) by twisting the detector insert (2), and that means are provided for converting the rotational movement of the detector insert (2) into the linear movement of the circuit board (L).
  2. Fire detector according to claim 1, characterised in that guides (23) oriented at right angles to the plug connector (8) in the base (1) are provided for the linear movement of the circuit board (L).
  3. Fire detector according to claim 2, characterised in that the (L) is arranged in a box-like housing (10), from which the contact strip (9) projects, and that the said guides (23) are designed like jaws and are provided to guide said housing (10).
  4. Fire detector according to claim 3, characterised in that the circuit board (L) and the said box-like housing (10) form an integral part of the sensor system (4).
  5. Fire detector according to one of claims 1 to 4, characterised in that the detector insert (2) comprises a housing part (5) with a web-like base (4), on which the sensor system (4) is guided in a pivotable manner.
  6. Fire detector according to claim 5, characterised in that the printed circuit board (L) and or the box-like housing (10) comprise guide means (15 and/or 19) guide means lying on a corresponding contour of the web-like base (14) and/or surrounding said base and/or guided in guide links (20) arranged thereon.
  7. Fire detector according to claim 6, characterised in that the guide links are formed by means of control curves (20) and the guide means by means of guide cams (19).
  8. Fire detector according to claim 6 or 7, characterised by blades (15) arranged on the box-like housing (10) for guiding the sensor system (4) relative to the web-like base (14) in a vertical direction.
EP99105749A 1999-03-22 1999-03-22 Fire detector Expired - Lifetime EP1039427B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE59914326T DE59914326D1 (en) 1999-03-22 1999-03-22 fire alarm
ES99105749T ES2287990T3 (en) 1999-03-22 1999-03-22 FIRE WARNING.
DK99105749T DK1039427T3 (en) 1999-03-22 1999-03-22 fire Detector
EP99105749A EP1039427B1 (en) 1999-03-22 1999-03-22 Fire detector
AT99105749T ATE361515T1 (en) 1999-03-22 1999-03-22 FIRE ALARM
CNB001047027A CN1178181C (en) 1999-03-22 2000-03-22 Fire alarm
NO20001499A NO20001499L (en) 1999-03-22 2000-03-22 Fire alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99105749A EP1039427B1 (en) 1999-03-22 1999-03-22 Fire detector

Publications (2)

Publication Number Publication Date
EP1039427A1 EP1039427A1 (en) 2000-09-27
EP1039427B1 true EP1039427B1 (en) 2007-05-02

Family

ID=8237830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99105749A Expired - Lifetime EP1039427B1 (en) 1999-03-22 1999-03-22 Fire detector

Country Status (7)

Country Link
EP (1) EP1039427B1 (en)
CN (1) CN1178181C (en)
AT (1) ATE361515T1 (en)
DE (1) DE59914326D1 (en)
DK (1) DK1039427T3 (en)
ES (1) ES2287990T3 (en)
NO (1) NO20001499L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2451915R1 (en) 2012-09-27 2014-06-02 Utc Fire & Security Americas Corporation, Inc. MODULAR SMOKE DETECTION SYSTEM AND PROCEDURE FOR MOUNTING A SMOKE DETECTION SYSTEM
EP3270362B1 (en) * 2017-02-07 2019-01-02 Siemens Schweiz AG Fire alarm with a measurement chamber and a switch holder for joint assembly of a fire sensor of the measuring chamber and at least one further sensor for detecting a measured variable in the environment outside the fire detector

Family Cites Families (3)

* 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
GB9515380D0 (en) * 1995-07-27 1995-09-27 Thorn Security Fire detector positioning
DK0772170T3 (en) * 1995-11-06 2001-12-10 Siemens Building Tech Ag Automatic fire alarm

Also Published As

Publication number Publication date
ES2287990T3 (en) 2007-12-16
NO20001499D0 (en) 2000-03-22
NO20001499L (en) 2000-09-25
DK1039427T3 (en) 2007-08-06
ATE361515T1 (en) 2007-05-15
EP1039427A1 (en) 2000-09-27
CN1178181C (en) 2004-12-01
CN1270375A (en) 2000-10-18
DE59914326D1 (en) 2007-06-14

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