• 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:
    An electrical system for measuring e.g. temperature in an enclosed space where the electrical system can be accredited continuously. In addition to a flat cable such as a flex PCB flat cable and a temperature sensor, it also includes a proximity sensor. This electrical system is suitable for e.g. reliable temperature detection by avoiding unnecessary alarms. The system is designed to be mounted in e.g. freezers, without the freezer first having to be emptied and defrosted, so that assembly or replacement in connection with accreditation takes place while the freezer or refrigerator is in operation.
    公开号:DK202000818A1
    申请号:DKP202000818
    申请日:2020-07-08
    公开日:2021-07-20
    发明作者:Jannik Holm Steffen；Svalling Daniel
    申请人:Tallwood Aps；
    IPC主号:
    专利说明:

    DK 2020 00818 A1 1 Electrical system for monitoring temperature measurements and other types of measurements in enclosed spaces.
    The present invention relates to an electrical system for monitoring sensor measurements such as temperature measurements in e.g. refrigerators and freezers, where the electrical system is easy to accredit on an ongoing basis.
    The disadvantage of known temperature sensors for monitoring e.g. refrigerators and freezers are that they can not be easily mounted and dismounted several times.
    This is important in the ongoing accreditation of laboratories' refrigerators and freezers, as e.g. the temperature sensor must be easily removable in order to be calibrated and easily reinserted afterwards.
    The conductor for known temperature sensors is mounted or must be mounted through a rear wall or side wall, where the outer dimensions of the conductor fit or must fit in, for example, a flange with a hole in it.
    Removing and removing the sensor can not be done while a freezer / refrigerator is in operation.
    The freezer must be emptied with the risks associated with it in order to calibrate the sensor.
    Easily mountable and removable sensors e.g. Temperature sensors for freezers and refrigerators, heating cabinets, incubators and other units that have a lockable space are thus important for a laboratory's refrigeration units with a mounted sensor to be easily accredited many times.
    The sensors in monitored units work together with a device for detecting the open / closed state of the enclosed space.
    The device for registering open / closed must also be designed to be able to be mounted and removed for each accreditation.
    This electrical system comprising a sensor and an open / closed state device must be able to supply data from which it is possible to generate only alarms to be responded to, i.e. which take into account the operation of a refrigerator / freezer.
    Summary 2020 The present invention solves the above problem with an electrical system comprising a sensor, e.g. a temperature sensor, on a flat cable, where the flat cable is 0.2 mm thinner or thinner, comprising a proximity sensor mounted on another or the same flat cable for detecting open or closed door, so that signals can be sent to an underlying system for use in an algorithm in a data processing unit.
    An embodiment comprises that said sensor is located in a first end of the flat cable, where the electrical system further comprises a magnet for fastening the sensor, so that the fastening can take place inside e.g. refrigerator / freezer during operation so that the flat cable is placed between the sealing strip on the door and the wall edge of the refrigerator / freezer. Furthermore, said live part of the proximity sensor is connected to a flat cable which can lie between the sealing strip of the door and the edge of the refrigerator / freezer, and the activating part of the proximity sensor, a magnet, is arranged to be placed opposite a suitable place on the freezer or refrigerator wall. , whereby the proximity sensor on the wall or door of the refrigerator / freezer can assist with information about the times and duration of the open and closed state of the door.
    A magnet affects the proximity sensor when it comes close to the proximity sensor, so the power to the proximity sensor is turned off or turned off depending on the function for which it is designed.
    A proximity sensor is an activatable contact e.g. ferromagnetically activatable, which is activated in the vicinity of a magnetic object.
    Another embodiment comprises that the other end of the flat cable is connected to a converter which converts the signal of the proximity sensor and, as mentioned above, a signal of a temperature sensor into a digital signal which can
    DK 2020 00818 A1 3 is forwarded to a unit. The sensor can be e.g. a temperature sensor, and the proximity sensor can sit on the same multi-conductor flat cable or separate flat cable.
    The magnet may be made of neodymium, which is resistant to impact at temperatures below -50 degrees Celsius. Alternatively, it may be of iridium. Another embodiment describes an electrical system in which at least one sensor is a temperature sensor or a humidity sensor. Yet another embodiment describes where the flat cable is 0.1 mm thick or less, which will be most suitable to use, as it minimizes the risk of ice crystal formation on and / or at a refrigerator sealing strip often a rubber strip where the flat cable is passed through and outside. The invention also relates to a cabinet with at least one enclosed space e.g. a refrigerator or freezer with an electrical system according to the invention. Embodiments of how the proximity sensor and its magnet are to be placed on the edge of the door or the wall of the refrigerator or freezer, respectively, are described. Likewise, embodiments of what the setup is like if the proximity sensor is located at the hinged side of the door are described. In order that the invention may be more readily understood, a non-limiting example of an embodiment will now be described in detail with reference to Figs. 1, with FIG. 1 shows an embodiment according to the invention for an electrical system comprising a sensor and a proximity sensor mounted on the same flat cable.
    DK 2020 00818 A1 4 Detailed description. FIG. 1 shows an electrical system, 1, which consists of a temperature sensor, 2, which is connected to a flat cable, 3, in a first end, 4. The first end, 4, of the flat cable 3, is shaded to illustrate that epoxy binds the sensor, 2, firmly against the flat cable, 3. In addition, the epoxy protects the sensor, 2. Other adhesives can also be used. In the case of surfaces of electrical components for printed circuit boards, e.g. an epoxy for protecting the sensor, 2. The epoxy is water-repellent, which is advantageous in e.g. refrigerators or freezers.
    FIG. 1 further shows a proximity sensor, 5, electrically connected to the flat cable and located on the flat cable, 3, while a magnet, not shown, for activating the proximity sensor is located on e.g. an opposite refrigerator door edge.
    A proximity sensor according to the present invention is suitable for e.g. a refrigerator and is intended to give a signal when a refrigerator door is closed or opened. A proximity sensor on the market today is designed so that the contact of the proximity sensor responds to the distance of a magnet when this distance becomes short. Yet another embodiment of the setup is where a proximity sensor, 5, magnet is mounted on e.g. the vertical edge of the refrigerator door at the opening side of the refrigerator door. This magnet will be close to the proximity sensor, 5, when the refrigerator door is closed, so that the proximity sensor, 5, connects an electrical connection therein, while the magnet will be far from the proximity sensor, 5, when the refrigerator door is opened, whereby the proximity sensor no longer closes it. electrical connection in this.
    DK 2020 00818 A1 Another and preferred embodiment of the setup is where the magnet on the edge of a refrigerator door on the opposite side approaches the proximity sensor, 5, by opening the refrigerator door so much that the proximity sensor terminates an electric current.
    The setup of the proximity sensor and activating magnet could also have been swapped, but it is most advantageous for the proximity sensor to sit on the fixed refrigerator wall, as appears from the description of the embodiment of the setups above.
    The electrical system is monitored using one or more systems designed to record and collect measurement data, as well as emit alarms when a certain threshold value is reached.
    Signals are collected for both e.g. temperature and information on whether a door is open or closed to the closable chamber, in which e.g. the temperature is measured as this information can be used in an algorithm that compares data from proximity sensor and temperature sensor to reduce false alarms. The information can e.g. be that if the door is open more than 5 minutes, an alarm will be generated, otherwise not.
    It is very important to avoid false alarms as too many false alarms create unreliability to the electrical system. One place where many false alarms occur is when a fridge / freezer needs to be filled with goods, as the cupboard is typically open for a very long time when filling. To solve this problem, a connection is programmed between the door opening register as a proximity sensor signal and e.g. a refrigerator temperature so that an alarm comes after X number of minutes, if e.g. the temperature in the cabinet rises above a selected limit after the door has been closed.
    DK 2020 00818 A1 6 If the temperature in the cabinet rises above the same limit while the door has been open, the alarm will sound after X + Y number of minutes.
    If the temperature rises due to a long-term door opening, extra time is thus required before an alarm is generated.
    That is, the temperature in a refrigerator or freezer is allowed in an algorithm to be too high for a while if the door is or has been open for a given period of time.
    A new type of conductor, which is very thin e.g.
    Flex PCB, is known from the Internet.
    Mutara Manufacturing Co.
    Ltd. has published a flex PCB flat cable with a temperature sensor mounted at the end of the flat cable.
    The flat cable is 0.1 mm thick.
    The flat cable is made of polyamide and polyester and is recommended for use in mobile phones or where space is tight.
    A suitable flat cable is 0.2 mm or less.
    A temperature sensor can be purchased as an integral part of the PCB flat cable, but can also be mounted on a PCB flat cable, without electrical component integrated, at a first end by means of an epoxy.
    A flat cable of the type mentioned can be included in the electrical system according to the invention, as it can be placed by means of a magnet without the conductor passing through a wall and can be placed between a sealing strip and a wall or over the upper side of a sealing strip forming a seal. at a door in e.g. a refrigerator or a freezer.
    This avoids that the refrigerator or freezer must first be emptied and the refrigerator or freezer brought to room temperature when an electrical component is to be calibrated, as the electrical system according to the invention can easily be taken out for calibration and reinserted afterwards.
    The magnet according to the invention ensures a fast and safe placement of the sensor and flat cable inside and out of the refrigerator.
    The easy installation saves time because it is not necessary to empty and defrost the refrigerator / freezer first.
    DK 2020 00818 A1 7 A rail arranged for mounting a magnet so that it is not pushed down by cooled items in the refrigerator can also be mounted on the inside of the wall of the refrigerator. Similarly, items will also be able to push the magnet down, if it is not secured with a rail, for other cabinets with at least one enclosed space.
    The invention relates to any cabinet with at least one enclosing space such as e.g. a heating cabinet or an incubator with a sensor that must be easy to calibrate. The arrangement of the electrical system arranged for the above-mentioned mounting method is in this case also advantageous, since one does not have to remove the contents temporarily. If an installation of the electrical system also comprises a proximity sensor on a corresponding or the same flat cable in a refrigerator or freezer as described, a data collection can be carried out, which is suitable for appropriate alarm generation. Appropriate alarm generation shall mean the generation of alarms to which it is necessary to respond. At the same time, ice crystals do not form on and / or at the list between the door and the refrigerator / freezer, as the flat cable is very thin.
    权利要求:
    Claims (10)
    [1]
    An electrical system, 1, for monitoring e.g. temperature in an enclosed space comprising at least one flat cable, 3, with a thickness of 0.2 mm or less with at least one sensor, 2, at a first end characterized in that the electrical system, 1, further comprises at least one proximity sensor, 5, electrically connected to the same or another flat cable, 1, wherein the live part of the proximity sensor, 5 is arranged to be able to be mounted on said closable space, e.g. the outer or inner wall edge or lid edge of a refrigerator or freezer, and could be disassembled for accreditation as well as an activating part, a magnet, the magnet being arranged to be positioned so that the proximity sensor, 5, conducting conductor closes when opening or closing of said door for registration of open or closed door, respectively.
    [2]
    An electrical system according to claim 1, wherein said sensor, 2, is located in a first end, 4, of the flat cable, 3, wherein the electrical system, 1, further comprises a magnet for attaching said sensor, 2, so that attachment can take place inside said enclosed space e.g. refrigerator / freezer during operation so that the flat cable, 3, can be placed between the sealing strip on the door and said closable space e.g. the wall edge of the refrigerator / freezer, and wherein said proximity sensors, 5, magnet are arranged to be able to sit opposite a suitable place in said closable space e.g. freezer / refrigerator door or wall.
    [3]
    An electrical system according to claim 1 or 2, wherein said electrical flat cable, 3, at a second end or position of the flat cable, 3, opposite the first end, 4, of the flat cable is electrically connected to a converter.
    DK 2020 00818 A1 9
    [4]
    An electrical system according to 2 or 3, wherein said magnet for attaching sensor, 2, and or proximity sensor activating magnet is made of neodymium or iridium.
    [5]
    An electrical system according to any one of claims 1 to 4, wherein said at least one sensor is a temperature sensor.
    [6]
    An electrical system according to any one of claims 1 to 5, wherein the flat cable is 0.1 mm thick or less e.g. a flexible printed circuit board flat cable.
    [7]
    7. A cabinet with at least one lockable space e.g. a refrigerator or freezer with an electrical system according to any one of claims 2 to 6, and if read depending on claim 3, wherein the converter is connected to a unit, 6, for receiving and forwarding.
    [8]
    A cabinet with at least one lockable space e.g. a refrigerator or freezer according to claim 7, wherein the proximity sensor magnet can be mounted on a vertical edge of a door at the opening side of the door so that the magnet will be close to the proximity sensor, 5 when the door is closed so that the magnet connects an electrical connection in the proximity sensor, 5, while the magnet will be far from the proximity sensor, 5 when the door is opened, whereby the proximity sensor can no longer connect the electrical connection therein.
    [9]
    9. A cabinet with at least one lockable space e.g. a refrigerator or freezer according to claim 7, wherein the magnet is mounted on the edge of a refrigerator door in its hinged side, and wherein the magnet approaches the proximity sensor, 5, by opening the door so much that the proximity sensor terminates an electric current.
    DK 2020 00818 A1 10
    [10]
    10. A cabinet with at least one lockable space e.g. a refrigerator or freezer according to claim 7, wherein the location of the proximity sensor, 5 or its activating magnet, respectively, is changed, it is preferred that the proximity sensor, 5, sits on the fixed refrigerator wall or the wall of the freezer.
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    同族专利:
    公开号 | 公开日
    DK180570B1|2021-08-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2021-07-20| PAT| Application published|Effective date: 20210610 |
    2021-08-03| PME| Patent granted|Effective date: 20210803 |
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA201901447|2019-12-09|
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