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DE-102007032504-B4 - Sensor device for non-contact identity or position determination

DE102007032504B4DE 102007032504 B4DE102007032504 B4DE 102007032504B4DE-102007032504-B4

Abstract

Sensor device for monitoring the closing and/or locking status of a door or window, which can be attached to a stationary door or window frame and interacts with a control element carried by a movable door or window sash, wherein the sensor device is designed in two parts and consists of a holding device (4, 24) that can be attached to the stationary first support (1) and an interchangeable sensor module (3, 23) held by this, characterized in that separable electrical contacts (9, 10) are provided between the holding device (4; 24) and the sensor module (3, 23) and the contacts (9) of the holding device are electrically connected to a connecting cable (8) and the sensor module has features designed so that the sensor module (3; 23) inserted into the holding device (4; 24) can only be detached from the holding device using a spring clip (29).

Inventors

  • Daniel Link

Assignees

  • LINK GMBH

Dates

Publication Date
20260513
Application Date
20070712

Claims (15)

  1. Sensor device for monitoring the closing and/or locking status of a door or window, which can be attached to a stationary door or window frame and interacts with a control element carried by a movable door or window sash, wherein the sensor device is designed in two parts and consists of a holding device (4, 24) that can be attached to the stationary first support (1) and an interchangeable sensor module (3, 23) held by this, characterized in that separable electrical contacts (9, 10) are provided between the holding device (4; 24) and the sensor module (3, 23) and the contacts (9) of the holding device are electrically connected to a connecting cable (8) and the sensor module has features designed so that the sensor module (3; 23) inserted into the holding device (4; 24) can only be detached from the holding device using a spring clip (29).
  2. Sensor device according to Claim 1 , characterized in that the holding device (4; 24) is provided with plug-in or spring force contacts (9) and the sensor module (3; 23) with corresponding counter contacts (10).
  3. Sensor device according to Claim 2 , characterized in that the holding device (24) and sensor module (23) are equipped with guide means (32) for establishing a contact connection in a unique manner.
  4. Sensor device according to Claim 2 or 3 , characterized in that the holding device (4) has a printed circuit board (7) which carries the plug contacts (9) and electrical conductors to the cable connections and is surrounded by a housing (6).
  5. Sensor device according to one of the Claims 1 until 4 , characterized in that the sensor module (3; 23) inserted into the holding device (4; 24) cannot be removed from the holding device without visible damage.
  6. Sensor device according to one of the Claims 1 until 5 , characterized in that the holding device (4; 24) and sensor module (3; 23) are equipped with locking or latching means (17, 18) for releasably securing the position of both parts.
  7. Sensor device according to Claim 6 , characterized in that , for securing the position of the sensor module (3; 23) in the holding device (4; 24), at least one spring tongue (17) is attached to the sensor module, which acts against a stop (18) provided on the holding device.
  8. Sensor device according to Claim 6 , characterized in that at least one spring tongue is attached to the holding device to secure the position of the sensor module in the holding device, which acts as a stop provided on the sensor module.
  9. Sensor device according to one of the Claims 1 until 8 characterized in that the holds device (4; 24) and the connecting cable (8) is firmly connected.
  10. Sensor device according to one of the Claims 2 until 9 , characterized in that the sensor module (3; 23) has a sensor board (11) carrying the sensor (12) and the counter contacts (10), surrounded by a housing.
  11. Sensor device according to Claim 1 , characterized in that the holding device (4; 24) can be attached directly to the stationary frame (1).
  12. Sensor device according to Claim 1 , characterized in that the holding device can be attached to a locking fitting supported by the frame.
  13. Sensor device according to Claim 11 or 12 , characterized in that the holding device (24) can be inserted into a receiving opening (13) provided in the frame (1) or in the fitting.
  14. Sensor device according to Claim 11 or 12 , characterized in that the module housing (3) is provided on its bearing surface on the frame (1) or fitting with a projection which engages in a recess (14) of the frame or fitting for position fixing.
  15. Sensor device according to one of the Claims 1 until 10 , characterized in that the sensor module (3; 23) has a query circuit for a transponder arranged on the second carrier.

Description

The invention relates to a sensor device for non-contact identification or position determination, which is attached to a stationary first support. It interacts non-contact with a control element located on a movable second support. If, for example, it serves to monitor the closed and/or locked status of a window, door, or the like, it is attached to the stationary door or window frame, while a magnet is usually arranged on the movable door or window sash as the control element. If it is only necessary to determine whether the window is open or closed, the sensor device is typically mounted directly on or in the window frame. If monitoring of the locked status of the window handle is also required, the sensor device is provided on the locking hardware, e.g., on the strike plate, while, for example, a drive rod carries the control magnet (see [reference]). DE 199 14 568 C2 Magnetic sensors often consist of reed contacts or Hall effect sensors, with the magnetic sensor permanently connected to a connecting cable and the cable connection point usually potted. The sensor assembly can also include other electronic components, e.g., an electronic interface for connecting the sensor to a bus line (see...). DE 299 14 391 U1 ). In one of DE 201 06 061 U1 With familiar door/window contacts, the installation effort is reduced by transmitting the status signal ("open" or "closed") generated by the sensor wirelessly to a monitoring center instead of via cable. To ensure that a self-contained door/window contact with wireless transmission can be easily attached to and replaced on different frame profiles, [the following is suggested:] DE 201 06 061 U1 Furthermore, it is recommended that the housing of the door/window contact sensor not be screwed directly to the door or window frame, but that an adapter plate first be attached to the frame, the mounting profile of which is adapted to the respective frame profile. The sensor housing is then attached to this adapter plate by means of a detachable snap connection. From the printed text GB 2 250 367 A A window frame with a number of sensors for monitoring the window is known. A two-part design of sensors in the area of the transmission of a vehicle is described in the publication. EP 1 213 564 A2 revealed. When installing monitoring systems for windows or doors, especially during expansion or retrofitting, it is sometimes only at an advanced stage of the installation that the type of sensor to be installed is determined, e.g., a reed contact with or without external field monitoring. Or an already installed sensor needs to be replaced with a different one. This often results in considerable additional installation effort. The invention provides a solution by designing the sensor device in two parts: a holding device attached to the first support, e.g., the window frame, and a replaceable sensor module held by this device. The sensor module contains the actual sensor. This can be, for example, at least one reed switch, a Hall sensor, or the transceiver for a transponder, in particular an RFID transponder. The sensor module is preferably designed as a plug-in module with plug-in or spring-loaded contacts. It is inserted into the holding device, which is equipped with mating contacts, and can only be removed from the holding device using tools, e.g., a tool. Alternatively, or in addition, the plug-in module can be designed so that it is destroyed or visibly damaged upon unauthorized removal and/or cannot be reinstalled. The installation point could also be sealed. If this seal is broken, it is evident that at least an attempt has been made to tamper with the sensor module. When installing the monitoring system, all mounting brackets and their connecting cables can be pre-installed or pre-routed. Only as a final step are the selected sensor modules inserted into their respective mounting brackets and, if necessary, locked or latched in place. Should it become apparent during testing or commissioning that a sensor module needs to be replaced with one of different features or performance, this can be done without significant installation effort. Using a simple tool, the connection between the sensor module and the mounting bracket is released, the sensor module is removed, and replaced with another. The same applies to any repairs. This also prevents incorrect wiring when replacing the sensor. It is evident that such a two-part design of the sensor device can be useful not only in monitoring systems for windows or doors, but also when using other sensors, for example, optical, acoustic, or electromagnetic position or distance sensors, or in a transponder/receiver for a transponder, such as an RFID transponder. The term "control element" therefore includes not only passive components, such as magnets, reflectors, barcode carriers, and the like, but also To understand active components, such as transponders. RFID transponders are known to serve not only for position determination bu