• 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:

    公开号:DK201300376A1
    申请号:DKP201300376
    申请日:2013-06-19
    公开日:2017-06-12
    发明作者:Søren Dissing
    申请人:Dansk Skalform As；
    IPC主号:
    专利说明:

    Patent Application DS 2013-001CSRC Date: June 19, 2013
    Title:
    Fully cast speaker cabinet with integrated bass reflex produced by sand casting in a gray cast iron alloy. CSRC
    Description:
    Usually, speaker cabinets are made of wood MDF board painted or lined with metal foil, plastic or thin plate in stainless steel using damping inserts to reduce, and sometimes completely remove the resonance.
    Let's start with the human hearing, which can perceive tone in the frequency range about 20 - 20,000 Hz. The sound itself is pressure waves with very small pressure variations, about one hundred thousandth of the atmospheric pressure, see appendix 4.
    Characteristic of sound is that high-frequency sounds behave mainly in the same way as light rays, whereas low-frequency sounds behave like waves.
    The devices that produce the sound oscillate mechanically and can, in given situations, create resonance and greatly distort the sound image if one of the intrinsic oscillations of the cabinet is hit.
    The choice of material for the cabinet influences the determination of the intrinsic frequency, as it is well known that the tendency for resonance can be significantly reduced by reducing the bulk density of the cabinet by padding the inside with damping material.
    If the geometric influence of the cabinet is neglected in relation to the cabinet's ability to self-swing, the influence of the material can be simplified to the following expression.
    j where E is the modulus of elasticity of the material and p is the density.
    From this, using data from Appendices 2 and 3, it appears that the material eigenvalue index of MDF plates * 0.0625.
    For the metals it will be for Gray iron «0.0508, SG iron« 0.0573, Alu-bronze «0.0430, Aluminum alloys * 0.0907, steel« 0.0588 and stainless steel * 0.5884
    From this material index, it is generally seen that there is no big difference between whether the cabinet is made in a metal alloy or wood when internal padding is not taken into account. Taking into account further data from Appendix 4, gray cast iron becomes a particularly interesting material, since the natural damping capacity of this material can be more than a hundred times that of all the other metals. Now we go back to the fact that low-frequency sound behaves like pressure waves, whereas high-frequency sound's movement pattern can be more compared to reflected light, the interior surface design of the cabinet benefits, see Appendix 1 and 6. The sound from the treble becomes when reflected all the time, broken in such a way that no standing sound waves can occur which may disturb the sound image of the speaker unit.
    This pattern can be molded by using a sand core as seen in Appendix 6, which is placed directly in molds and forms the inner geometry. The uneven geometric shape of the surface is normally based on a hexagonal pattern that can be introvert or extrovert. After this, it is the natural slip angles for the core to come out of the core box after firing and hardening that (change) the geometry of the petrupled surface.
    The base unit which produces the low frequency sounds moves relatively much air which can relate to standing pressure waves. This problem is solved by the embedded bass reflex.
    To illustrate the effect of the interior 3D surface versus a smooth surface as well as material selection, 3 cabinets were cast. One in Sg iron with a smooth surface where all the irregularities on the core were cut out, one in Sg iron with a core with the described pattern and one in gray cast iron with a pattern. By comparing resonance measurements directly on these three enclosures, the effect of with / without pattern and material selection can be elucidated. There is a big difference between SG iron and gray cast iron in terms of strength and sound. The important thing here is that when you turn on Sg iron, it sings while gray cast iron is completely dead.
    From Appendix 10, it is clearly seen by comparison in Figure 10.1 that the interior pattern housing has less resonance propensity than that without pattern. By comparison in Figure 10.2, it is seen that the cabinet cast in gray iron with pattern works clearly better than the corresponding cast in Sg iron.
    From these measurements, it can be clearly seen that the speaker cabinet with gray molded internal pattern works best and is therefore the optimal solution.
    Patent Claims: # 1: The method of manufacture is claimed by a single-molded speaker cabinet, wherein the inside geometry is made via a sand core and the outside of a sand mold, so that the unit has a characteristic surface characteristic of sand molded goods. # 2: The production method is claimed, where the integrated bass reflex is obtained in the same process step as the manufacture of the cabinet itself. # 3: The molded interior geometric pattern is claimed. # 4 The exterior design language and design is made up of two composite spherical shells, which are naturally tangentially walled together. # 5 Claims are made for a single-cast high-speaker cabinet cast in any materials such as bronze, stainless steel, Sg iron, aluminum and especially gray cast iron. # 6 Claims are required to use gray cast iron as construction material, in whole or in part, for speaker cabinet manufacturing in the case of sand casting.
    Summary
    Cast sound reproduction is a unique newly invented speaker concept based on the best components of the market and a newly invented speaker cabinet design, material selection and manufacturing method. See Appendix 9.
    The unique feature of the invention is that the production is based on the fact that the cabinet is produced in one and only one stage of production using the sand casting technology while having a natural interior petrule geometry, reflecting the high frequency sound waves while charging the integrated bass reflex the speaker breath freely. The geometric design and material selection of the speaker cabinet makes it immune to mechanical vibrations.
    The uniqueness of this invention is that gray cast iron's sound attenuating properties and strength have been used to produce, in a single production step, a speaker enclosure with an internal geometry that reflects the high-frequency sounds in such a way that no resonance is created while the integrated bass reflex ensures that the speaker unit can breathe, creating standing pressure waves.
    权利要求:
    Claims (6)
    [1]
    Patent Application DS 2013-001CSRC Date: June 19, 2013 Title: Fully cast speaker cabinet with integrated bass reflex produced by sand casting in a gray cast iron alloy. CSRC Description: Normally, wooden speaker cabinets are made of MDF board painted or lined with metal foil, plastic or thin plate in stainless steel with the use of cushioning inserts to reduce and sometimes completely remove the resonance. Let's start with the human hearing, which can perceive tone in the frequency range about 20 - 20,000 Hz. The sound itself is pressure waves with very small pressure variants, about one hundred thousandth of the atmospheric pressure, see appendix 4. Characteristic of sound is that high frequency sounds behave mainly in the same way as light rays, whereas low frequency sounds behave like waves. The devices that produce the sound oscillate mechanically and can, in given situations, create resonance and greatly distort the sound image if one of the intrinsic oscillations of the cabinet is hit. The choice of material for the cabinet influences the determination of the intrinsic frequency, as it is well known that the tendency for resonance can be significantly reduced by reducing the bulk density of the cabinet by padding the inside with damping material. If the geometric influence of the cabinet is neglected in relation to the cabinet's ability to self-swing, the influence of the material can be simplified to the following expression.

    j where E is the modulus of elasticity of the material and p is the density. From this, using data from Appendices 2 and 3, it appears that the material eigenvalue index of MDF plates * 0.0625. For the metals, it will be for Gray iron «0.0508, SG iron« 0.0573, Alu-bronze «0.0430, Aluminum alloys * 0.0907, steel« 0.0588 and stainless steel * 0.5884 This material index shows In general, there is no big difference between whether the cabinet is made in a metal alloy or wood when internal padding is not taken into account. Taking into account further data from Appendix 4, gray cast iron becomes a particularly interesting material, since the natural damping capacity of this material can be more than a hundred times that of all the other metals. Now we go back to the fact that low-frequency sound behaves like pressure waves, whereas high-frequency sound's movement pattern can be more compared to reflected light, the interior surface design of the cabinet benefits, see Appendix 1 and 6. The sound from the treble becomes when reflected all the time, broken in such a way that no standing sound waves can occur which may disturb the sound image of the speaker unit. This pattern can be molded by using a sand core as seen in Appendix 6, which is placed directly in molds and forms the inner geometry. The uneven geometric shape of the surface is normally based on a hexagonal pattern that can be introvert or extrovert. After this, it is the natural slip angles for the core to come out of the core box after firing and hardening that (change) the geometry of the petrupled surface. The base unit which produces the low frequency sounds moves relatively much air which can relate to standing pressure waves. This problem is solved by the embedded bass reflex. To illustrate the effect of the interior 3D surface versus a smooth surface as well as material selection, 3 cabinets were cast. One in Sg iron with a smooth surface where all the irregularities on the core were cut out, one in Sg iron with a core with the described pattern and one in gray cast iron with a pattern. By comparing resonance measurements directly on these three enclosures, the effect of with / without pattern and material selection can be elucidated. There is a big difference between SG iron and gray cast iron in terms of strength and sound. The important thing here is that when you turn on Sg iron, it sings while gray cast iron is completely dead. From Appendix 10, it is clearly seen by comparison in Figure 10.1 that the interior pattern housing has less resonance propensity than that without pattern. By comparison in Figure 10.2, it is seen that the cabinet cast in gray iron with pattern works clearly better than the corresponding cast in Sg iron. From these measurements, it can be clearly seen that the speaker cabinet with gray molded internal pattern works best and is therefore the optimal solution. # 1: The method of manufacture is claimed by a single-molded speaker cabinet, the inside geometry being made via a sand core and the outside of a sand mold, so that the unit has a characteristic surface characteristic of sand molded goods.
    [2]
    # 2: The production method is claimed, where the integrated bass reflex is obtained in the same process step as the manufacture of the cabinet itself.
    [3]
    # 3: The molded interior geometric pattern is claimed.
    [4]
    # 4 The exterior design language and design is made up of two composite spherical shells, which are naturally tangentially walled together.
    [5]
    # 5 Claims are made for a single-cast high-speaker cabinet cast in any materials such as bronze, stainless steel, Sg iron, aluminum and especially gray cast iron.
    [6]
    # 6 Claims are required to use gray cast iron as construction material, in whole or in part, for speaker cabinet manufacturing in the case of sand casting. Summary Molded sound reproduction is a unique newly invented speaker concept based on the best components of the market and a newly invented speaker cabinet design, material selection and manufacturing method. See Appendix 9. The unique feature of the invention is that the generation is based on the fact that the cabinet is produced in one and only one stage of production using the sand casting technology while having a natural interior petrule geometry, reflecting the high frequency sound waves while the integrated bass reflex lets the speaker breathe freely. The geometric design and material selection of the speaker cabinet makes it immune to mechanical vibrations. The uniqueness of this invention is that gray cast iron's sound attenuating properties and strength have been used to produce, in a single production step, a speaker enclosure with an internal geometry that reflects the high-frequency sounds in such a way that no resonance is created while the integrated bass reflex ensures that the speaker unit can breathe, creating standing pressure waves.
    类似技术:
    公开号 | 公开日 | 专利标题
    CN104754454B|2019-03-26|Loudspeaker mould group
    US9165539B2|2015-10-20|Multiple contiguous closed-chambered monolithic structure guitar body
    US9918161B1|2018-03-13|Speaker box
    CN208908494U|2019-05-28|Loudspeaker mould group
    US20190132669A1|2019-05-02|Speaker Box
    CN203618111U|2014-05-28|Loudspeaker with multi-layer rear cavity
    DK201300376A1|2017-06-12|Fully cast speaker cabinet with integrated bass reflex produced by sand casting in a gray cast iron alloy. CSRC
    US20090200102A1|2009-08-13|Loudspeaker enclosure utilizing a rigid foam core
    CN203984643U|2014-12-03|Passive radiator
    JP2020014843A|2020-01-30|Multi-material golf club head
    WO2019128437A1|2019-07-04|Sounding device module
    KR101788110B1|2017-10-20|Microspeaker enclosure with air adsorbent in resonance space
    CN204377095U|2015-06-03|The anti-type earphone of dipole height radiation
    CN104285251B|2017-10-24|Parabola percussion instrument
    CN102065346A|2011-05-18|Sound box
    US8842868B1|2014-09-23|Structure for passive radiation sound box
    CN106034270A|2016-10-19|closed multiple-cavity type low-pitch sound box and television set with the built-in low-pitch sound box
    CN204518013U|2015-07-29|The anti-type earphone of high radiation
    US10104468B2|2018-10-16|Speaker cabinet
    CN206077646U|2017-04-05|In-Ear Headphones
    US9420364B2|2016-08-16|Display device with sound generation regions having different areas
    CN104378712B|2018-04-10|The audio amplifier of low frequency dynamic resonance enhancing
    TWM469703U|2014-01-01|Piezoelectric speaker
    CN104581565B|2018-12-28|A kind of car audio system
    Hafner et al.2015|Optimization of natural frequencies for fabrication-aware shape modeling
    同族专利:
    公开号 | 公开日
    DK179276B1|2018-03-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS59107061A|1982-12-09|1984-06-21|Takaoka Kogyo Kk|Base for speaker box|
    JPS59230394A|1983-06-13|1984-12-24|Takaoka Kogyo Kk|Speaker box|
    DE29609681U1|1996-05-31|1996-08-14|Karl Schmidt Fabrik Fuer Giese|Cooling pin with bracket|
    JP2000125382A|1998-10-13|2000-04-28|Aisin Takaoka Ltd|Speaker box|
    JP2000125381A|1998-10-13|2000-04-28|Aisin Takaoka Ltd|Speaker box|
    CN1283950A|1999-08-09|2001-02-14|高铨佐|Technology for making magnetically conductive iron core of loudspeake|
    JP2001285977A|2000-03-30|2001-10-12|Usui Chutetsu Kogyo Kk|Speaker box of integrated structure by spherical graphite cast iron|
    DE10352574A1|2003-11-11|2005-06-16|Deutsches Zentrum für Luft- und Raumfahrt e.V.|Filler containing aerogels|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA201300376A|DK179276B1|2013-06-19|2013-06-19|Fully cast speaker cabinet with integrated bass reflex produced by sand casting in a gray cast iron alloy. CSRC|DKPA201300376A| DK179276B1|2013-06-19|2013-06-19|Fully cast speaker cabinet with integrated bass reflex produced by sand casting in a gray cast iron alloy. CSRC|
    [返回顶部]