• 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:
    The invention relates to a facade ventilation box with an electronically self-regulating ventilation valve in a ventilation channel for electronically controlling a through-front of ventilation air through the ventilation channel, and a mechanically self-regulating protective valve in or in front of the ventilation channel between the outside and the ventilation valve. The protective valve is mechanically driven by a pressure difference between the outside and inside. Above a threshold value of the pressure difference, the ventilation channel between the outside and the ventilation valve is at least partially closed and the ventilation valve is at least partially screened off from the outside. In case of strong wind and rain, the protective cap can therefore protect the electronics of the ventilation valve against water ingress.
    公开号:BE1022905B1
    申请号:E2014/0265
    申请日:2014-04-16
    公开日:2016-10-11
    发明作者:Adrianus Jacobus Zwaan
    申请人:Alusta Natuurlijke Ventilatietechniek B.V.；
    IPC主号:
    专利说明:

    Facade ventilation cabinet
    The invention relates to a facade ventilation cabinet comprising a housing that can be received in an opening of a facade and has a ventilation channel, which ventilation channel can form an air connection between an outside and inside of the facade during use; and an electronic self-regulating ventilation valve in the ventilation channel for electronically controlling a passage of ventilation air through the ventilation channel.
    The façade ventilation cabinet can be mounted in a designated opening in a façade, typically in an outside wall of a building and / or above a window frame. The façade ventilation cabinet protrudes through the façade and can provide a room located on the inside of the façade with ventilation air, extracted from the outside of the façade. The passage of ventilation air through the ventilation channel can, for example, be quantified as a flow rate, i.e. an amount of air per unit of time that flows through the ventilation channel. The flow of ventilation air can be easily regulated, for example by simply opening or closing the ventilation duct. However, in order to comply with certain regulations, such as the Dutch Standard NEN 1087: 2001, it is desirable to provide a more accurate control of the ventilation air. There are various options for this.
    For example, you can choose between active and passive ventilation cabinets. An active ventilation cabinet can comprise a fan in the ventilation channel, wherein the throughput can be controlled by setting a speed of the fan. On the other hand, a passive ventilation cabinet can offer a cheaper and less susceptible to failure solution where the ventilation is only driven by a pressure difference between the inside and outside of the facade. This pressure difference can occur naturally, for example if wind blows against the outside of the ventilation cabinet or facade. A pressure difference can also be artificially generated, for example by actively extracting the air in a building at another location. To attract fresh ventilation air from outside, an overpressure is typically required on the outside of the facade relative to the inside. The pressure difference can also depend on weather conditions such as wind speed and wind direction.
    The throughput in a ventilation channel can be further controlled by partially or partially closing off the ventilation channel, for example with the aid of an adjustable ventilation valve in the ventilation channel. The ventilation valve can for example be operated manually. However, this has the disadvantage that a user must actively take care of regulating the ventilation. Therefore, it is often preferred to provide an automatically controlled ventilation valve, also referred to as a self-regulating ventilation valve. The term “self-regulating ventilation valve” therefore refers to a ventilation valve that can be controlled automatically during use without the conscious operation of a user. This does not mean that in addition to the self-regulating ventilation valve, there can also be a manual operation, for example, to operate a separate closing valve.
    A mechanically self-regulating ventilation valve can for example be passively driven by a pressure difference between the outside and inside of a facade. If central extraction in a building takes place, for example, there will typically be an overpressure on the outside of the facade relative to the inside. Properties of the valve, such as weight, shape and suspension, can be set to cause the ventilation valve to move to a closed condition under the influence of a certain pressure difference and to close the ventilation channel, partially or not, in order to automatically regulate the flow of ventilation air. . A disadvantage of a mechanically self-regulating ventilation valve is that it will usually not take into account a possible demand requirement. Such a ventilation valve will also be open, for example, if there are no people in the building and operate independently of the air quality on the inside. This in turn can lead to unnecessary energy consumption, such as heating costs.
    With a view to saving energy, it is therefore preferable to replace the mechanically self-regulating ventilation valve with an electronic self-regulating ventilation valve. The electronic self-regulating ventilation valve can be used flexibly to actively regulate the ventilation, depending on an actual demand requirement. For example, a ventilation system can be provided with a sensor. The sensor can perform an autonomous measurement of a specific environmental variable such as air quality, time, presence of people, etc. The sensor data can then be used to actively control the ventilation valve. A disadvantage of an electronic self-regulating ventilation valve, however, is that it can be vulnerable to weather influences.
    It is an object of the invention to provide a solution to this problem. To this end, the invention provides a facade ventilation cabinet with electronic self-regulating ventilation valve of the aforementioned type, characterized in that the facade ventilation cabinet is furthermore provided with a mechanically self-regulating protective valve in or before the ventilation channel between the outside and the electronically self-regulating ventilation valve, wherein the mechanically self-regulating protective valve is arranged to be mechanically driven by a pressure difference between the outside and inside to at least partially close the ventilation channel between the outside and the electronically self-regulating ventilation valve to at least partially close the electronically self-regulating ventilation valve above the threshold value of the pressure difference can be shielded from the outside.
    The invention is based on the insight that in certain weather conditions, such as a combination of rain and wind, rain water can be included in the ventilation duct with the ventilation air. The rain can then come into contact with the electronics of the electronic self-regulating ventilation valve and cause interference, for example as a result of a short circuit. The mechanically self-regulating protective valve is arranged to close off the ventilation duct at least partially automatically above a threshold value of the pressure difference. This threshold value is achieved with a certain wind pressure on the outside of the facade. Because the protective valve is placed between the outside and the electronically self-regulating ventilation valve, the protective valve can protect the electronics of the electronically self-regulating ventilation valve against weather influences from outside, for example if there is strong wind. By adding a mechanically controlled control valve - placed between the ventilation input and the electronic control valve - to the electronically controlled valve, a pressure increase can be built up in front of the mechanically controlled control valve and a pressure reduction behind this valve due to the larger duct cross-section, which it water penetration. The smaller the opening (at high wind speeds), the higher the pressure build-up and the better the "watertightness". This can prevent malfunctions in the electronics due to rain water, for example. Rain water can also be prevented from being taken to the interior.
    A façade ventilation cabinet according to the invention is preferably included in a façade ventilation system with a sensor. The sensor is adapted to perform a measurement of an environmental variable such as air quality, and to generate a sensor output based on the measurement. The electronic self-regulating ventilation valve can be controlled in dependence on the sensor output. This embodiment provides a combination of a sensor-controlled electronic control / closing valve (for example, responsive to the indoor climate) and a mechanically-controlled control valve (responsive to the outdoor climate) placed in front of it. Both valves complement each other's operation. This embodiment can be compared, for example, to a conventional ventilation cabinet with only a CO2 sensor-controlled valve. When such an electronic control valve is open, with considerable CO2 pollution, completely open (independent of the weather conditions), water can be carried with the airflow in rain and strong wind. Short-circuiting and water on the floor can then result, which can be prevented with the embodiment of the invention.
    It is further noted that the facade ventilation cabinet according to the invention need not perform a separate wind speed measurement to control the electronic valve because this control can be performed by the mechanical valve. This saves a valuable speed sensor. In addition, a mechanical valve may be less susceptible to malfunction than an electronic wind speed sensor. The combination of a mechanically controlled control valve and a sensor-controlled electronic control / closing valve disclosed here can hereby be more advantageous and less vulnerable than known systems with a separate (electronic) wind speed sensor.
    Further preferred forms, examples and applications of the invention are explained below with reference to a figure. Herein: FIG 1 shows a schematic section of a first embodiment of a ventilation system with a facade ventilation cabinet.
    In the description and figure, similar reference numerals refer to the same or similar elements. Details of the device may be omitted or added to the figure to make certain aspects clearer. In the figure, relative dimensions of parts can be exaggerated to better show them. It is to be understood that when a connection between structures or components is described or shown, this connection can be established directly or via intermediate structures or components, unless otherwise stated. FIG 1 shows a ventilation system 10 with a facade ventilation cabinet 1. The facade ventilation cabinet 1 comprises a housing 3 which can be accommodated in an opening of a facade 2 intended for this purpose. The housing 3 comprises a ventilation channel 4. During use, the ventilation channel 4 can form an air connection 5 between an outside 6 and inside 7 of the facade 2. The facade ventilation cabinet 1 further comprises an electronically self-regulating ventilation valve 8. The electronically self-regulating ventilation valve 8 is arranged in the ventilation channel 4 for electronically controlling a passage of ventilation air through the ventilation channel 4. The facade ventilation cabinet 1 further comprises a mechanically self-regulating protective valve 9. The protective valve 9 is placed in the ventilation duct 4 between the outside 6 and the electronically self-regulating ventilation valve 8. In another In an embodiment, the protective valve can also be placed in front of the ventilation duct 4 on the outside 6 of the facade ventilation cabinet 1 as long as it can at least partially close off the ventilation duct 4. The protective valve 9 is arranged to be mechanically driven by a pressure difference between the outside 6 and inside 7. Above a threshold value of the pressure difference, the protective valve 9 will at least partially close the ventilation channel 4 between the outside 6 and the electronically self-regulating ventilation valve 8. Hereby the electronically self-regulating ventilation valve 8 is at least partially shielded from the outside 6 above the threshold value of the pressure difference.
    In the embodiment shown, the mechanically self-regulating protective valve 9 is pivotally suspended in the ventilation duct 4. The mechanically self-regulating protective valve 9 is here arranged to pivot, above the threshold value of the pressure difference, towards an at least partially closed state. The protective valve 9 can therefore close if a certain excess pressure prevails on the outside 6 relative to the inside 7. This pressure difference can cause an air flow that can also set the protective valve in motion. The ventilation channel 4 can hereby at least partially be closed by means of the protective valve 9 between the outside 6 and the electronically self-regulating ventilation valve 8. The protective valve 9 can for instance be attached to a hinge connection 9s on an upper side of the protective valve 9.
    The protective valve 9 shown has a zigzag profile which can have the advantage of providing a specific rigidity in the protective valve 9. The ventilation valve 8 shown has a bent profile with which a specific rigidity can also be obtained. Other forms of the protective valve 9 and / or ventilation valve 8 are also possible. The shape of the protective valve 9 can for instance be adapted to obtain a specific surface area or a specific weight distribution with respect to the hinge connection 9s. A weight, shape, and suspension can be adjusted to cause the protective valve 9 to move at a desired pressure difference. By varying these properties, a threshold value can therefore be set at which the protective valve 9 at least partially closes off the ventilation duct 4. For example, if the weight of the protective valve 9 is higher, the ventilation valve will only close the ventilation channel 4 with higher pressure differences. If the protective valve 9 has a larger surface area and / or is placed closer to an entrance of the ventilation duct 4, the ventilation valve can start to swing towards a closed state of the ventilation duct 4 at lower pressure differences.
    In the embodiment shown, the facade ventilation cabinet 1 is provided with an electric motor 13. The motor 13 is adapted to drive the electronic self-regulating ventilation valve 8. The motor 13 is electronically controlled for at least partially opening and closing the ventilation channel 4 with the electronic self-regulating ventilation valve 8. The electronically self-regulating ventilation valve 8 as shown shows an open condition of the ventilation duct 4, wherein the air connection 5 is maximum. The dotted line, indicated by reference numeral 8 ", shows a closed state of the ventilation duct 4, wherein the air connection 5 is minimal. The minimum opening state is not necessarily a completely closed state but can also keep a space open for the air connection. In the embodiment shown, the ventilation valve 8 is rotatably arranged, for example with a hinge connection on the side of the motor 13. Other configurations are also possible for moving the ventilation valve 8. In an embodiment not shown, the ventilation valve can for instance also be slid up and down to close off the ventilation channel 4. A plurality of ventilation valves can also be provided which together can close off the ventilation channel 4.
    In one embodiment, the electric motor is arranged to control the electronically self-regulating ventilation valve (8) between two discrete opening states. This may be sufficient to ensure that the ventilation duct 4 is closed off when there is no need for ventilation air. Such a motor and associated control electronics can be designed simply and therefore inexpensively. At the same time, the mechanically self-regulating protective valve 9 can provide a further refined control of the supply of ventilation air through the ventilation channel 4. For example, in strong wind, the protective valve 9 can prevent too much ventilation air from flowing through the open ventilation channel 4. The combination of a simple electronic self-regulating ventilation valve 8 with a mechanically self-regulating protective valve 9 can therefore offer the advantages of a demand-driven system with a simple self-regulation.
    In another embodiment, an electric motor is arranged to control the electronic self-regulating ventilation valve 8 between three discrete opening states, for example open, half-open, and closed. Also in this case a relatively simple motor and electronics can be used and at the same time a refined control of the ventilation air supply can be provided. In other embodiments, more than three discrete opening states can also be provided or even a continuous setting of the opening state. It will be clear that the system can be implemented more easily if fewer opening conditions are required.
    In one embodiment, the facade ventilation cabinet 1 comprises means (not shown) for preventing the mechanically self-regulating protective valve 9 from completely closing off the ventilation duct 4. Such means can, for example, prevent the ventilation from being completely switched off at a certain overpressure on the outside 6 of the facade 2 relative to the inside 7.
    In an embodiment (not shown), the means may comprise a blockage arranged to stop the mechanically self-regulating protective valve 9 beyond a certain position. A minimum air passage along the mechanically self-regulating protective valve 9 can hereby be provided. The blockage may, for example, consist of a stop in the ventilation channel 4 against which the protective valve 9 runs against before the protective valve 9 completely closes off the ventilation channel 4. The blockage can also be formed in the hinge connection 9s, whereby it allows only a partial pivoting of the protective valve 9 such that the ventilation duct 4 is not completely closed off. In addition to a blockage, other means can be provided to prevent the protective valve 9 from completely closing off the ventilation duct 4. For example, the protective valve 9 may have one or more passages through which ventilation air can flow even if the protective valve 9 is in a fully closed state.
    A length of the protective valve 9 can also be shorter than a distance between the hinge connection 9s and the other side of the ventilation duct 4 so that there is always a ventilation space.
    In one embodiment, the mechanically self-regulating protective valve 9 is set to close off the ventilation duct 4 at least partially in the event of an overpressure on the outside 6 relative to the inside 7 a higher threshold value. When the threshold value is exceeded, i.e. when the excess pressure on the outside 6 relative to the inside 7 is higher than the threshold value, this pressure difference will cause the protective valve 9 to move, i.e. mechanically control it, to at least partially close off the ventilation duct 4. As described above, a desired threshold value can be set by, for example, varying a weight, shape, and / or suspension of the protective valve 9.
    The desired setting of the threshold value may depend on the further design of the facade ventilation cabinet 1. The ventilation duct 4 in the embodiment shown has, for example, an opening to the outside 6 which is directed downwards and is partially shielded by a roof. In such an embodiment, a higher threshold value can be set, i.e. the protective valve 9 remains open at relatively larger pressure differences because the chance of blowing in rainwater 14 is smaller. In another embodiment, the opening of the ventilation duct 4 can be arranged without a roof. In such an embodiment the threshold value can be set lower because in such an embodiment rainwater 14 can be blown into the ventilation duct 4 even with a lower wind pressure. The threshold value of the pressure difference at which the protective valve 9 at least partially closes the ventilation duct 4 will preferably be set somewhere between 5 Pa (light wind pressure, here expressed in "Pascal") and 120 Pa (strong wind pressure). The wind pressure can, for example, depend on the wind speed, wind direction, airtightness and shape of the facade. In order to remain on the safe side with regard to the prevention of watering in, the threshold value is preferably set somewhere between 5 Pa and 25 Pa (moderate wind pressure). The protective valve can also be set to gradually close the ventilation channel 4 over a range of pressure differences, for example between 1 and 25 Pa. The protective valve can thus also have a regulating function for the amount of ventilation. The greater the pressure difference across the grid, the greater the risk of watering. In practice it is therefore desirable that the protective valve starts to close under the influence of the pressure difference at 2 Pa pressure difference and with higher pressure differences, in particular 25 Pa and higher, has reached its final position under the influence of the pressure difference.
    In the embodiment shown, in addition to the described facade ventilation cabinet 1, the ventilation system 10 also comprises a sensor 11 and a processor 12. The sensor 11 is adapted to perform an autonomous measurement of an environmental variable 15, and to provide a sensor output based on the autonomous measurement. to generate. The term "autonomous" is used here to indicate that the sensor can function without conscious operation of a user. The ventilation system 1 can thus function as a whole self-regulating. The processor 12 is adapted to control the electronically self-regulating ventilation valve 8 in dependence on the sensor output. The processor 12 and sensor 11 can also be integral. The sensor 11 and / or processor 12 can be integrated in the facade ventilation cabinet 1 or be provided separately therefrom, for example on an inner side of the facade 2.
    In one embodiment, the sensor comprises an air quality sensor. The air quality sensor is designed for measuring an air quality of the façade ventilation cabinet 1 in a space on the inside 7 of the façade 2. The air quality can therefore count as an ambient variable. The processor 12 is adapted to control the ventilation valve 8 via electronic means, for example via control signal 12s. In the embodiment shown, the ventilation channel 4 between the outside 6 and the electronically self-regulating ventilation valve 8 is at least partially closed if the air quality measurement meets a set quality criterion. The advantage of this is that ventilation air is not attracted unnecessarily if there is no need for it due to the air quality. Furthermore, the processor 12 may be arranged to open the ventilation valve 8 if the air quality sensor measures that the air quality does not meet the set quality criterion.
    The air quality sensor can, for example, be adapted to measure a carbon dioxide concentration and / or carbon monoxide concentration in the room as a measure of the air quality. For example, air humidity in the room can also be measured as a measure of air quality. Other measurements for air quality are also conceivable, for example the presence of certain chemicals.
    In another or further embodiment, the sensor 11 comprises a presence sensor. The presence sensor is adapted to measure whether a person is present in a space on the inside 7 of the facade 2. The presence of a person can therefore count as an environment variable. In the embodiment, the processor 12 is adapted to electronically control the ventilation valve 8 to at least partially close the ventilation channel 4 between the outside 6 and the ventilation valve 8 if the presence sensor measures that no person is present in the space. On the other hand, the processor can be arranged to open the ventilation valve 8 if a person is present. This can have the advantage that a room is not unnecessarily ventilated if no person is present in the room, which can save energy costs. The presence sensor can for instance comprise an infrared sensor. The infrared sensor according to this embodiment is adapted to distinguish infrared radiation from a person present in the room, for example with respect to background radiation. Other types of presence sensors are also possible, for example a check-in sensor, which keeps track of whether a person has been checked into the room.
    In another or further embodiment, the sensor 11 comprises a clock. The clock is adapted to measure a time. The processor 12 of this embodiment is arranged to control the electronic self-regulating ventilation valve 8 to at least partially close the ventilation duct 4 between the outside 6 and the electronic self-regulating ventilation valve 8 during a set time criterion, for example at set times when there are no people in the room present. With this embodiment, for example, the ventilation valve in an office building can be closed at night to prevent unnecessary energy consumption.
    In another or further embodiment, the sensor 11 comprises a flow sensor. The flow sensor is adapted to measure a flow of ventilation air through the ventilation channel 4. In the embodiment, the processor 12 is arranged to electronically control the ventilation valve 8 to provide a set flow rate. With this embodiment, for example, a specific ventilation requirement can be provided. The flow sensor can for instance comprise a fan, wherein a speed of the fan is a measure of the flow. In another embodiment, the flow sensor can be formed by measuring a position of the protective valve, for example with a potentiometer attached to the hinge connection 9s. Other sensors are also possible that can measure a flow. The addition of a self-regulating mechanical protective valve to a ventilation cabinet with a flow-controlled electronic ventilation valve can be advantageous to support the flow control through the electronic ventilation valve and to further protect the ventilation valve against weather influences.
    The capacity of the façade ventilation cabinet 1 can be measured with the ventilation valve 8 in maximum open position, with a certain pressure difference. This is also called the nominal capacity. This nominal capacity can be adjusted to the ventilation needs of a room. The ventilation channel 4 is typically adapted to provide a certain nominal ventilation requirement. The nominal capacity is preferably maintained with a tolerance of ± 20% over a range of different wind pressures, for example from 1 to 25 Pa. The self-regulating electronic ventilation valve and / or the self-regulating mechanical protective valve can, for example, be arranged to automatically close the ventilation duct 4 gradually, alone or in combination, in order to maintain a desired capacity with increasing pressure differences. For example, an air speed of 1 meter per second can be maintained by means of self-regulation at a pressure difference varying between 1 and 25 Pa.
    Two or more of the aforementioned versions of the sensor can also be combined. For example, the system may include both a clock and an air quality sensor where the valve is closed if the air quality meets set air quality criteria or if the clock measures that the set time criteria are met. Other combinations are also possible.
    Typical dimensions of the facade ventilation cabinet 1 as drawn may differ depending on a ventilation requirement and / or thickness of the facade. As an example, the façade ventilation cabinet as shown in the figure has a height of 70 mm, a width in the drawn cross-section of 150 mm. The length perpendicular to the drawn cross-section can vary depending on the ventilation requirement or connection with existing structures, such as an underlying window frame. Typically this length will be a meter or a few meters.
    The facade 2 in which the ventilation cabinet 1 is placed can be formed by an outside wall of a building. In some cases, the ventilation cabinet can be hung above a window frame from a practical point of view. The ventilation cabinet can also be installed in other places. The ventilation cabinet 1 can for instance also be placed in a sloping roof. The term "façade" can therefore be interpreted broadly as a wall that separates an inner space from the outside air. Preferably, the ventilation channel 4 of a ventilation cabinet in use extends substantially horizontally through the housing 3.
    The processor 12 as described herein may comprise one or more processors configured to control a position of the ventilation valve 8, for example via a dedicated motor 13. The processor may be a special processor or a generally applicable processor. The processor may work using a program portion and / or applying an integrated circuit. The processor may include microcontrollers, central processing units (CPUs), digital signal processors (DSP), or other processors) or controller (s) such as analog electrical circuits. The controller or processor may further comprise a memory that may form part of the processor or may be operatively coupled to the processor. For example, certain set criteria can be stored in the memory, such as air quality criteria or time criteria. The memory can optionally also store further user preferences or program components for the control of the facade ventilation cabinet 1.
    The embodiments as described herein offer a number of advantages. If there is no need for ventilation, the ventilation duct 4 can be closed so that no unnecessary heat loss occurs. As a solution for watering, the electronically self-regulating ventilation valve is combined with a mechanically self-regulating protective valve arranged on the outside of the ventilation duct. The ventilation valve can be fully open for a specific ventilation requirement, while the protective valve responds to the prevailing wind pressure. Tests of the inventor have shown that with a facade ventilation cabinet according to the invention, leakage can be prevented up to 350 Pa wind pressure, while leakage without a protective valve can often already occur at 20 - 25 Pa. This advantage is thus achieved by adding the mechanically self-regulating protective valve to the electronically self-regulating ventilation valve. If there is no wind, the protective flap is in the fully open position and when the wind increases, the ventilation duct is closed further. In a basic version, the function of the electronic control valve can be reduced to a simple open / close function. The refined control of the ventilation can be partly carried out by the mechanically self-regulating protective valve. This can result in considerable savings with regard to the electronics of the self-regulating electronic version. The mechanically self-regulating protective valve can consist of a simple plastic profile, for example obtained with an extrusion process. The benefits may therefore include a lower cost, fewer disruptions and less maintenance.
    Unless defined otherwise, the terms used have the meaning as generally understood by one skilled in the art to which this invention belongs, read in light of the description and drawings. The terms used should therefore be interpreted on the basis of their current meaning in the context of the relevant field and not in an idealized or overly formalistic way unless otherwise defined. Terminology for describing specific embodiments is not intended to limit the invention. The invention is not limited to the embodiments shown and described, but also extends to variants thereof. The various elements of the exemplary embodiments as discussed can optionally also be combined or used separately in a manner other than the one shown. The singular terms "the", "it, and" a "do not include a plural tut unless this is clear from the context. The term "and / or" includes all combinations of one or more said terms. The term "includes" implies the presence of said elements, but does not exclude the presence or addition of one or more other elements. conclusions do not limit the scope of protection but are for illustrative purposes only.
    权利要求:
    Claims (14)
    [1]
    CONCLUSIONS
    Facade ventilation cabinet (1) comprising a housing (3) that can be received in an opening of a facade (2) and has a ventilation duct (4), which ventilation duct (4) can form an air connection (5) between an outside (6) and inside (7) of the facade (2); and an electronic self-regulating ventilation valve (8) in the ventilation duct (4) for electronically controlling a passage of ventilation air through the ventilation duct (4); characterized in that the façade ventilation cabinet (1) is furthermore provided with a mechanically self-regulating protective valve (9) in or in front of the ventilation duct (4) between the outside (6) and the ventilation valve (8), the protective valve (9) being arranged to be mechanically driven by a pressure difference between the outside (6) and inside (7) to at least partially close the ventilation channel (4) between the outside (6) and the ventilation valve (8) above a threshold value of the pressure difference in order to close the ventilation valve (8) at least partially shielded from the outside (6) above the threshold value of the pressure difference.
    [2]
    Facade ventilation cabinet (1) according to claim 1, characterized in that the protective valve (9) is pivotally suspended in the ventilation duct (4), the protective valve (9) being arranged to reach an at least partially closed state above the threshold value of the pressure difference. pivoting to at least partially close off the ventilation duct (4) by means of the protective valve (9) between the outside (6) and the ventilation valve (8).
    [3]
    Façade ventilation cabinet (1) according to one of the preceding claims, characterized in that the façade ventilation cabinet (1) further comprises an electric motor (13), adapted to drive the ventilation valve (8) and adapted to be electronically controlled for the at least partially opening and closing the ventilation duct (4) with the ventilation valve (8).
    [4]
    Facade ventilation cabinet (1) according to claim 3, characterized in that the electric motor is adapted to control the ventilation valve (8) between two or more discrete opening states.
    [5]
    Façade ventilation cabinet (1) according to one of the preceding claims, characterized in that the façade ventilation cabinet (1) comprises means for preventing the mechanically self-regulating protective valve (9) from completely closing off the ventilation duct (4).
    [6]
    Façade ventilation cabinet (1) according to claim 5, characterized in that the means comprise a blockage arranged to stop the mechanically self-regulating protective valve (9) beyond a certain position to provide a minimum air passage along the mechanically self-regulating protective valve (9).
    [7]
    Façade ventilation cabinet (1) according to one of the preceding claims, characterized in that the mechanically self-regulating protective valve (9) is set to at least partially close off the ventilation duct (4) in the event of excess pressure on the outside (6) with respect to the inside ( 7) with a threshold value higher than 2 Pascal.
    [8]
    A ventilation system (10) comprising a facade ventilation cabinet (1) according to any one of the preceding claims; a sensor (11) adapted to perform an autonomous measurement of an environment variable (15), and to generate a sensor output (lis) based on the autonomous measurement; a processor (12) adapted to control the electronically self-regulating ventilation valve (8) in dependence on the sensor output (lis).
    [9]
    Ventilation system (10) according to claim 8, characterized in that the sensor (11) comprises an air quality sensor adapted to measure an air quality of a room on the inside (7) of the facade (2); wherein the processor (12) is arranged to control the electronically self-regulating ventilation valve (8) to at least partially close the ventilation duct (4) between the outside (6) and the electronically self-regulating ventilation valve (8) if the air quality measurement meets a set quality criterion .
    [10]
    Ventilation system (10) according to claim 9, characterized in that the air quality sensor is adapted to measure one or more of a carbon dioxide concentration, carbon monoxide concentration, and / or air humidity in the room.
    [11]
    Ventilation system (10) according to one of claims 8 to 10, characterized in that the sensor (11) comprises a presence sensor, adapted to measure whether there is a person in a space on the inside (7) of the facade (2) is present; wherein the processor (12) is arranged to control the electronically self-regulating ventilation valve (8) to at least partially close the ventilation duct (4) between the outside (6) and the electronically self-regulating ventilation valve (8) if the presence sensor detects that there is no person is present in the space.
    [12]
    Ventilation system (10) according to claim 11, characterized in that the presence sensor comprises an infrared sensor, adapted to distinguish infrared radiation from a person present in the room.
    [13]
    A ventilation system (10) according to any one of claims 8 to 12, characterized in that the sensor (11) comprises a clock adapted to measure a time; wherein the processor (12) is arranged to control the electronic self-regulating ventilation valve (8) to at least partially close the ventilation duct (4) between the outside (6) and the electronic self-regulating ventilation valve (8) during a set time criterion.
    [14]
    Ventilation system (10) according to one of claims 8 to 13, characterized in that the sensor comprises a flow sensor, adapted to measure a flow of ventilation air through the ventilation channel (4); wherein the processor (12) is adapted to control the electronic self-regulating ventilation valve (8) to provide a set flow rate.
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    同族专利:
    公开号 | 公开日
    NL2010677C2|2014-10-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1063384A2|1999-06-21|2000-12-27|Siegenia-Frank Kg|Ventilation device|
    WO2001009473A1|1999-07-29|2001-02-08|Cwikilewicz Marek|Intake ventilator|
    EP1568947A1|2004-02-27|2005-08-31|Renson Ventilation NV|Device for regulating the airflow in a ventilation device|
    NL1027908C2|2004-12-28|2006-07-03|Vero Duco Nv|Ventilation device for installing in outside wall of building, has bypass passage extending along hinge for auxiliary valve used to maintain constant flow of air|
    NL2002401C2|2009-01-08|2010-07-12|Alusta Natuurlijke Ventilatietechniek B V|FACADE VENTILATION CABINET WITH INTEGRATED SUN PROTECTION.|
    EP2574860A2|2011-03-15|2013-04-03|Vero Duco N.V.|Ventilatie-inrichting met verwarming, alsmede gebouw met een dergelijke ventilatie-inrichting|
    法律状态:
    2018-03-21| FG| Patent granted|Effective date: 20161011 |
    2018-03-21| MM| Lapsed because of non-payment of the annual fee|Effective date: 20170430 |
    优先权:
    申请号 | 申请日 | 专利标题
    NL2010677A|NL2010677C2|2013-04-19|2013-04-19|FACADE VENTILATION BOX.|
    NL2010677|2013-04-19|
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