• 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 an elastic soundproofing panel (1) in which a twistable support plate (2) and a sound-absorbing layer (3) also applied thereto are provided.
    公开号:AT520050A1
    申请号:T50362/2017
    申请日:2017-05-04
    公开日:2018-12-15
    发明作者:
    申请人:Siemens Ag；
    IPC主号:
    专利说明:

    Description
    Sound insulation, especially for air choke coils
    The invention relates to an elastic soundproofing panel, a soundproofing device for air choke coils with an elastic soundproofing panel and a method for producing the soundproofing device.
    Air choke coils for high voltage technology have considerable operating noises. This is due to the vibrations of the air choke coil due to the electromagnetic forces acting on the windings.
    A choke coil is known from WO2010000005 A1, in which to reduce those that arise during operation
    Sound emissions an outermost winding layer is designed as a current-carrying, acoustic shield winding.
    EP 0585772 A1 describes a method for reducing the sound emission from transformers, in which the sound waves emitted by the transformer are divided into one or more
    Concentrators are introduced, are spatially concentrated therein and, after being passed through the concentrators, interference noise insulation elements arranged in pairs in acoustic series connection are introduced, one pair of these interference noise insulation elements being matched to the lowest emitted sound frequency per pair, and the other interference noise insulation element being twice the value of the lowest emitted Sound frequency is tuned.
    The object of the invention is to further develop the state of the art.
    According to the invention, this is done with a method according to claim 1.
    Advantageous embodiments result from the claims at under.
    The invention is explained in more detail with reference to figures.
    The following are examples:
    1 shows an inventive elastic soundproofing panel,
    2 different variants of the elastic soundproofing panel according to the invention,
    3 shows a side view of an air choke coil with acoustic insulation and
    4 shows a top view of an air choke coil with acoustic insulation.
    The elastic according to the invention shown in Fig. 1
    Soundproofing panel 1 has a twistable carrier plate 2 and a likewise twistable sound-absorbing layer 3 applied thereon. It can therefore be rolled up in an advantageous manner after the manufacturing process and can simply be shipped and stored in the rolled up state. The length and width of the soundproofing panel 1 are preferably adapted to the intended purpose, i.e. when used for acoustic insulation (sound insulation) of an air choke coil 4, the width of the soundproof panel 1 should correspond to the height of the area to be insulated and the length should at least correspond to the circumference of the air choke coil 4 and an additional overlap zone.
    The materials used for carrier plate 2 and sound-absorbing layer 3 must be used for a
    Air choke coil meet the appropriate electrical regulations, such as the voltage requirements.
    The materials used here are, for example, fiber-reinforced
    Plastics for the carrier board 2 and mineral fiber boards and acoustic foams for the sound-absorbing layer 3 are conceivable.
    In order to improve the acoustic insulation properties, the sound-absorbing layer 3 can have a structured surface on the side facing away from the carrier plate 2, as is shown in FIG. 2.
    In addition, it is particularly advantageous in the case of soundproofing panels 1 with comparatively larger dimensions if the twistable carrier plate 2 has stiffening ribs 5 on the side facing away from the sound-absorbing layer 3, which ribs are arranged in such a way that they neither roll up before transport and storage, nor apply them hinder on the air throttle coil 4.
    The carrier plate 2 can also be constructed in multiple layers and, for example, have two carrier layers 6 which are spaced apart by means of spacer strips 7.
    As can be seen from FIGS. 3 and 4, the elastic soundproofing panel 1 forms a cylindrical hollow body which surrounds the air throttle coil 4 when used for sheathing an air throttle coil 4.
    In the illustrated embodiment, the air throttle coil 4 also has an internal acoustic insulation.
    A further noise reduction can be achieved by additional roof and floor elements.
    The procedure for producing a soundproofing device according to the invention is as follows:
    The elastic soundproofing panel 1 is brought in roll form to the production location of the air throttle coil 4, wrapped around the air throttle coil 4 and with vibration-isolating
    Adapters connected to structural elements of the air throttle coil 4. The ends of the soundproofing panel 1 are glued or using suitable mechanical connecting elements (e.g.
    Plastic rivets) connected.
    The advantage of the method according to the invention is, among other things, that the soundproofing device is installed in the factory under controlled environmental conditions and not on site outdoors.
    The method requires little space, only the (small) space for the rolled soundproofing panel 1 next to the air throttle coil must be available.
    Short delivery times are possible and there are no mold costs.
    Existing systems can be converted easily.
    LIST OF REFERENCE NUMERALS 1 soundproofing panel 2 support plate 3 sound absorbing layer 4 air choke coil 5 stiffening ribs 6 support layers 7 spacer strips 8 outer cylindrical hollow body 9 inner cylindrical hollow body
    权利要求:
    Claims (7)
    [1]
    Patent claims
    1. Elastic soundproofing panel, characterized in that a twistable carrier plate (2) and a likewise twistable sound-absorbing layer (3) applied thereon are provided.
    [2]
    2. Elastic soundproofing panel according to claim 1, characterized in that the sound-absorbing layer (3) on the side facing away from the carrier plate (2) has a structured surface.
    [3]
    3. Elastic soundproofing panel according to claim 1 or 2, characterized in that the twistable carrier plate (2) on the side facing away from the sound-absorbing layer (3) has stiffening ribs (5).
    [4]
    4. Elastic soundproofing panel according to one of claims 1 to 3, characterized in that the twistable carrier plate (2) is constructed in several layers and has at least two carrier layers (6) which are spaced apart by means of spacer strips (7).
    [5]
    5. Soundproofing device for acoustic insulation, in particular for air choke coils, with an elastic soundproofing panel (1) according to one of claims 1 to 4, characterized in that the elastic soundproofing panel (1) forms a cylindrical hollow body (8) which is the object to be insulated encloses.
    [6]
    6. Soundproofing device for air choke coils with an elastic soundproofing panel according to one of claims 1 to 4, characterized in that the elastic soundproofing panel (1) forms an outer cylindrical hollow body (8) and an inner cylindrical hollow body (9), and the object to be insulated is arranged between the two hollow bodies (8, 9).
    [7]
    7. A method for producing a soundproofing device for an air choke coil, with an elastic soundproofing panel (1) according to one of claims 1 to 4, characterized in that the elastic soundproofing panel (1) is brought into a roll shape after its manufacture, that for application on the air throttle coil (4), the elastic soundproofing panel (1) is wound around the air throttle coil (4) and connected to vibration-isolating adapters on structural elements of the air throttle coil (4).
    类似技术:
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    同族专利:
    公开号 | 公开日
    AT520050B1|2020-04-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE8313950U1|1983-05-11|1983-12-15|Münstermann, Siegfried, 4830 Gütersloh|ACOUSTIC ELEMENT|
    DE4429045A1|1994-08-16|1996-02-22|Missel Gmbh & Co E|Insulation material|
    CN201804671U|2010-01-18|2011-04-20|杨保和|Low-noise reactor|
    WO2014186888A1|2013-05-21|2014-11-27|Trench Limited|Integrated sound shield for air core reactor|
    DE202016100104U1|2015-02-06|2016-02-22|Xigma Style Corp.|Vibration and sound-absorbing mat structure|WO2020219259A1|2019-04-22|2020-10-29|Trench Limited|Double wall sound shield with modular sound absorbent panels for an air core reactor|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50362/2017A|AT520050B1|2017-05-04|2017-05-04|Sound insulation, especially for air choke coils|ATA50362/2017A| AT520050B1|2017-05-04|2017-05-04|Sound insulation, especially for air choke coils|
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