WO2004057086A1 - Procede de lavage par vibration d'ondes acoustiques et transducteur permettant de mettre en oeuvre ce procede - Google Patents

Procede de lavage par vibration d'ondes acoustiques et transducteur permettant de mettre en oeuvre ce procede Download PDF

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Publication number
WO2004057086A1
WO2004057086A1 PCT/CN2003/001104 CN0301104W WO2004057086A1 WO 2004057086 A1 WO2004057086 A1 WO 2004057086A1 CN 0301104 W CN0301104 W CN 0301104W WO 2004057086 A1 WO2004057086 A1 WO 2004057086A1
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Prior art keywords
vibration
transducer
washing
frequency
sonic
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PCT/CN2003/001104
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English (en)
French (fr)
Inventor
Tianlong Zhang
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Tianlong Zhang
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Priority to AU2003296200A priority Critical patent/AU2003296200A1/en
Publication of WO2004057086A1 publication Critical patent/WO2004057086A1/zh

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F19/00—Washing machines using vibrations for washing purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations

Definitions

  • the present invention relates to a method for washing articles (such as clothes, tableware, etc.), and specifically relates to a sonic vibration washing method.
  • the invention also relates to a transducer implementing the above-mentioned sonic vibration-type washing method. Background technique
  • an ultrasonic wave or an electric pulse with an ultrasonic frequency is strictly used as a vibration source (such as an ultrasonic washing machine).
  • the electric pulse with an ultrasonic frequency acts on the transducer.
  • the transducer converts the electric pulse energy with ultrasonic frequency into vibrational mechanical energy, and the vibrational mechanical energy propagates and diffuses in the water, causing the water to vibrate, thereby achieving the washing of the articles in the water.
  • the most important device for implementing the ultrasonic vibration washing method is an ultrasonic washing machine, but due to technical, structural, material, and manufacturing process constraints, the existing ultrasonic washing machines basically stay on theoretical research and cannot reach a practical level.
  • the invention solves the problem that the existing vibration washing method has a small practical area, breaks through the traditional recognition that the vibration washing method must use ultrasonic waves as a vibration pie, and provides a vibration washing method using sound waves as a vibration source. At the same time, A transducer implementing the sonic vibration washing method.
  • the present invention is realized by using the following technical scheme:
  • the sonic vibration washing method is generated by sonic pulses.
  • the generator generates a square wave electric pulse with adjustable frequency.
  • the square wave electric pulse acts on the transducer and converts the square wave electric pulse into mechanical energy that can cause water to vibrate.
  • the frequency range of the square wave electric pulse is 20- 3000HZ.
  • the traditional understanding is that the washing of items and clothes by the vibratory washing method depends on the cavitation effect of ultrasonic waves. Therefore, a misunderstanding has been formed in the thinking of vibration, that is, the vibration washing method uses ultrasonic waves as the vibration source, or the vibration sources generate ultrasonic waves. Frequency vibration waves, but as explained in the background section, this is not the case.
  • the test proves that reducing the frequency of the vibration wave generated by the vibration source to the sonic frequency band (20-3000HZ) has a prominent and significant improvement in the washing effect compared to the traditional washing method, which is reflected in the range of activation of water vibrations that can reach tens of centimeters, making It is possible to realize vibration-type washing in a large water area (such as a real sonic washing machine); from ultrasonic waves to the sonic frequency band, so that the mechanical vibration frequency that the transducer can achieve is adapted to the sonic frequency, so that it can be manufactured with practicality. Although the vibration frequency of the value transducer has decreased, the energy conversion efficiency of the transducer has been significantly improved at the same power.
  • the inventiveness of the present invention is embodied in overcoming and breaking through the traditional recognition that the ultrasonic washing method must use ultrasonic waves, and selecting the frequency of the sound wave band as the frequency of the vibration source.
  • the sonic vibration washing method of the present invention only selects the frequency of the sonic band as the frequency of the vibration source, it overcomes the traditional knowledge formed over many years, and the effect is very obvious, which is reflected in: 1. It can be used in large waters. Realize the vibration washing, make the vibration washing method really have practical value.
  • various washing devices can be made, such as sonic washing machines and dishwashers with the same volume as existing pulsator or drum type washing machines, and because the sound waves have no harm to the human body, they can be made into sonic bath boxes, Foot washing boxes and other washing devices form a series of acoustic washing devices.
  • Strong washing and decontamination ability If the washed out clothes are cleaner than the wheeled or drum type washing machine, the decontamination effect on the collar and cuffs of the clothes is particularly obvious.
  • Short washing time For example, sweaters and knitwear can be washed in 3-5 minutes, and ordinary clothes can be washed in 5-10 minutes. 4.
  • the washing device manufactured by this method has a moderate cost and is convenient for popularization and use of the washing device.
  • Another object of the present invention is to provide a transducer that realizes the above-mentioned sonic vibration-type washing method.
  • the transducer includes a bracket, a magnetic core fixed to the bracket, a coil sleeved on the magnetic core, and a vibration plate fixed to the coil. A middle portion of the vibration plate is convex. This structure of the vibration plate is conducive to the transducer's conversion of electrical pulses and mechanical vibration energy, and it is also conducive to the uniform transmission of vibration waves in water.
  • the convex upper end of the middle part of the vibration plate is a circular arc surface to further improve the performance of the transducer.
  • the convex cross section of the middle of the vibration plate is oval or circular, so that the effect of energy conversion and vibration wave transmission of the transducer can be further improved.
  • the magnetic core can be composed of a ring magnet and an iron core fixed to the ring magnet, which can further improve the performance of the ring resonator.
  • the transducer is a special device for realizing the above-mentioned sonic vibration washing method, and has a reasonable structure and remarkable use effect, and is an ideal matching special device for the sonic vibration washing method.
  • FIG. 1 is a schematic structural diagram of a transducer of the present invention
  • Figure 2 is a top view of a transducer vibration plate
  • FIG. 3 is a schematic circuit diagram of a square wave pulse generator capable of generating a required frequency and continuously adjustable in frequency;
  • FIG. 4 is a schematic structural diagram of an external appearance of a sonic washing machine according to the present invention.
  • Fig. 1 is a schematic structural diagram of a transducer of the present invention
  • Fig. 2 is a top view of a transducer vibration plate.
  • the figure shows a transducer that realizes the production technology vibration-type washing method, which includes a bracket 1, a ring magnet fixed to the bracket 2, an iron core 3 fixed to the ring magnet, a coil 4 sleeved on the iron core, and fixed to the coil.
  • the vibration plate 5 has a protrusion 6 in the middle of the vibration plate 5.
  • the upper end surface of the middle protrusion 6 of the vibration plate 5 is an arc surface.
  • the raised cross section of the middle of the vibration plate is oval or circular.
  • a protective net 7 fixed to the support is provided on the upper part of the vibrating plate to protect the vibrating plate and prevent damage to the vibrating plate by the items to be washed and affect the normal operation of the vibrating plate.
  • a frequency-adjustable square wave electric pulse (20-3000 Hz) generated by a sound wave pulse generator is input to the coil 4 of the transducer, and the coil 4 generates an alternating magnetic field.
  • the alternating magnetic field is constant with the ring magnet 2
  • the magnetic field interacts to cause the coil 4 to drive the vibrating trigger 5 to generate vibration, and the vibration wave is transmitted to the washing water area through the vibration plate 5, thereby converting the square wave electric pulse into mechanical energy capable of causing water to vibrate.
  • a bump 6 is provided in the middle of the vibration plate 5. This structure facilitates the conversion of electrical pulses and mechanical vibration energy by the transducer, and also facilitates the uniform transmission of vibration waves in water.
  • FIG. 3 is a circuit schematic diagram of a square wave pulse generator capable of generating a required frequency and continuously adjustable in frequency.
  • a circuit capable of generating square wave pulses of a certain frequency is a very well-known prior art, and only one of the circuit structures shown in the accompanying drawings is mainly used to prove the feasibility of the technical solution of the present invention.
  • the square wave pulse frequency generated by this circuit structure is continuously adjustable within the required range of the sound wave band, and a suitable square wave frequency is selected within 20-3000HZ according to the different washing items and clothes.
  • FIG. 4 is a schematic structural diagram of an external appearance of a sonic washing machine achieved according to the present invention, which shows a schematic structural diagram of an external appearance of a sonic washing machine constructed according to the method of the present invention and using the transducer of the present invention. Shows the feasibility of the present invention.
  • the washing machine uses a rectangular cylinder, and the transducer is fixed on the front and rear cylinder walls of the cylinder and the bottom of the cylinder, so that the present invention can be implemented in specific industrial applications.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Description

声波振动式洗涤方法以及实现该洗涤
方法所用的换能器 技术领域
本发明涉及物品 （如衣物、 碗筷等） 的洗涤方法， 具体为一种声波振动式洗 涤方法。
本发明还涉及实现上述声波振动式洗涤方法的换能器。 背景技术
现有技术中， 但凡涉及振动式的洗涤方式， 都是以超声波或者严格地讲是以 具有超声频率的电脉冲作为振动源 （如超声波洗衣机） ， 具有超声频率的电脉冲 作用于换能器上， 由换能器将具有超声频率的电脉冲能转换成振动的机械能， 振 动机械能在水中传播、 扩散， 使水产生振动， 从而实现对水中物品的洗涤。 实现 超声振动式洗涤方式最主要的装置为超声波洗衣机， 但受技术、 结构、 材料、 制 造工艺等方面的制约， 现有的超声波洗衣机基本上停留在理论研究上， 无法达到 实用的程度， 这也说明为什么超声被洗衣机很早就已有文献报道但目前仍迟迟未 见成熟产品的原因。 现有技术中也有以特定的超声频率的振动源对特定的物品进 行清洗、 消毒的洗涤方法或装置， 由于其振动频率的不可调性， 决定了其洗涤对 象的特定性， 而且其成本极高， 使其应用的领域受到极大的限制。 现有技术中较 实际的技术方案也只是在洗衣机内设置一个很小的超声洗涤区域 （如申请号为
00107086. X 的发明专利申请文件所公开的技术方案） ， 只能对衣物的局部如衣 领进行超声洗涤。 发明内容
本发明解决现有振动式洗涤方法实用面较小的问题， 突破振动式洗涤方法必 以超声波作为振动派的传统认识， 给出一种以声波作为振动源的振动式洗涤方法， 同时， 给出实现该声波振动式洗涤方法的一种换能器。
本发明是釆用如下技术方案实现的： 声波振动式洗涤方法， 由声波脉冲发生 器产生一个频率可调的方波电脉冲， 该方波电脉冲作用于换能器上， 将方波电脉 冲转换成能使水产生振动的机械能， 该方波电脉冲的频率范围为 20-3000HZ。 传 统认识认为振动式洗涤方式对物品、 衣物的洗涤依赖于超声波的空化效应， 因此， 在认识思路上形成一个误区， 即振动式洗涤方式都以超声波作为振动源， 或者说 振动源都产生超声频率的振动波， 但正如在背景技术部分所阐述的那样， 事实并 非如此。 试验证明将振动源产生的振动波频率降至声波频段 （ 20-3000HZ ) 对洗 涤效果较传统的洗涤方式也有突出、 显著的提高， 体现在对水域振动激活的范围 可达到几十厘米， 使得在大水域范围内实现振动式洗涤成为可能 （如真正意义的 声波洗衣机） ； 从超声波降至声波频段， 使得换能器所能达到的机械振动频率与 声波段频率相适应， 从而能够制造出具有实用价值的换能器， 虽然振动频率下降 了， 但在相同功率的情况下， 换能器的换能效率有了显著提高， 应该说这是能够 产生效果的主要原因。 因此， 本发明的创造性就体现在克服和突破了振动式洗涤 方式必用超声波这一传统认识， 选用声波段频率作为振动源的频率。 . 本发明所述的声波振动式洗涤方法虽然只是选用了声波段频率作为振动源的 频率， 但克服了多年形成的传统认识， 而且产生的效果十分明显， 体现在： 1、 能 够在大水域内实现振动式洗涤， 使振动式洗涤方式真正具有实用价值。 以该方法 为基础可制成各种洗涤装置， 如容积与现有波轮式或滚筒式洗衣机相同的声波洗 衣机、 洗碗机， 而且由于声波对人体无任何损害， 可制成声波浴盒、 洗脚盒以及 其它的洗涤装置， 形成声被洗涤装置的系列产品。 2、 洗涤去污能力强。 如洗出的 衣物比被轮式或滚筒式洗衣机干净， 对衣服衣领与袖口的去污效果尤其明显。 3、 洗涤用时短。 如对毛衣、 针织品衣物一般 3-5 分即可洗干净， 对一般衣物也只需 5- 10 分钟。 4、 由于被洗涤物品如衣服在水中基本不动， 因此对被洗涤的物品基 本不磨损， 而且衣服凉干后平整、 柔软。 5、 成本适中。 以该方法制造的洗涤装置 成本适中， 便于洗涤装置的推广使用。
本发明的另一个目的是提供实现上述声波振动式洗涤方法的换能器。
该换能器包含支架、 与支架固定的磁芯、 套于磁芯上的线圈和与线圈固定的 振动板， 振动板的中部有凸起。 该种结构的振动板有利于换能器对电脉冲与机械 振动能的转换， 也有利于振动波在水域中的均匀传递。
振动板的中部凸起的上端而为圆弧面， 以进一步改善换能器的性能。 振动板中部的凸起的横截面为椭圆形或者圆形， 这样， 能进一步提高换能器 能量转换和振动波传递的效果。
磁芯可由环形磁铁以及与环形磁铁固定的铁芯组成， 这样可以进一步提高环 能器的性能。
该换能器是实现上述声波振动式洗涤方法的专用装置， 其结构合理， 使用效 果显著， 为声波振动洗涤方式理想的配套专用装置。 附图说明
图 1为本发明换能器的结构示意图；
图 2为换能器振动板的俯视图；
图 3为能产生所需频率且频率连续可调的方波脉冲发生器的电路原理图； 图 4为依据本发明成就的声波洗衣机外型结构示意图； 具体实施方式
如图 1和 2所示， 图 1为本发明换能器的结构示意图； 图 2为换能器振动板 的俯视图。 图中示出了实现产技振动式洗涤方法的换能器， 包含支架 1、 与支架 固定的环形磁铁 2、 与环形磁铁固定的铁芯 3、 套于铁芯上的线圈 4和与线圈固定 的振动扳 5，振动板 5的中部有凸起 6。振动板 5的中部凸起 6的上端面为圆弧面。 振动板中部的凸起的横截面为椭圆形或者圆形。 在振动板上部设有与支架固定的 护网 7， 用于保护振动板， 防止被洗涤物品对振动板的损害和影响振动板的正常 工作。
操作中， 将由声波脉冲发生器产生的频率可调的方波电脉冲 （20- 3000Hz ) ， 输入换能器的线圈 4， 线圈 4产生交变磁场， 该交变磁场与环形磁铁 2产生的恒 定磁场相互作用， 使线圈 4带动振动扳 5产生振动， 通过振动板 5向洗涤水域传 递振动波， 从而将方波电脉冲转换成能使水产生振动的机械能。 而振动板 5 的中 部有凸起 6， 这样的结构有利于换能器对电脉冲与机械振动能的转换， 也有利于 振动波在水域中的均匀传递。 可以理解， 图中虽然示出了环形磁铁和与环形磁铁 固定的铁芯， 但是为了使该换能器的结构更加合理， 可以用单一的磁芯替换上述 的结构。 图 3为能产生所需频率且频率连续可调的方波脉冲发生器的电路原理图。 实 际上能产生一定频率的方波脉冲的电路为非常公知的现有技术， 附图中给出的只 是其中的一种电路结构， 主要用于证明本发明所述技术方案的可实施性。 该电路 结构产生的方波脉冲频率在所需的声波段范围内连续可调， 根据洗涤物品、 衣物 的不同在 20- 3000HZ内选择适合的方波频率。
图 4为依据本发明成就的声波洗衣机外型结构示意图， 其中示出了依据本发 明所述方法和釆用本发明所述的换能器构建的一种声波洗衣机的外型结构示意 图， 以进一步显示本发明的可实施性。 该洗衣机采用矩型缸筒， 将换能器固定于 缸筒的前后筒壁上以及缸筒底部， 就可以在具体的工业应用上实现本发明。

Claims

权利要求
1、 一种声波振动式洗涤方法， 该方法包括由声波脉冲发生器产生一个频率 可调的方波电脉冲， 将该方波电脉冲作用于换能器上， 以及将方波电脉冲转换成 能使水产生振动的机械能， 其中该方波电脉冲的频率范围为 20-3000Hz。
2、 一种实现如权利要求 1 所述声波振动式洗涤方法的换能器， 包含支架、 与支架固定的磁芯、 套于磁芯上的线圈和与线圈固定的振动扳， 其中所述振动板 的中部有凸起。
3、 如权利要求 2 所述的换能器， 其特征在于： 振动板的中部凸起的上端面 为圆弧面。
4、 如权利要求 2 或 3所述的换能器， 其特征在于： 振动板中部的凸起的横 截面为椭圆形。
5、 如权利要求 2 或 3 所述的换能器， 其特征在于： 振动板中部的凸起的横 截面为圆形。
6、 如权利要求 2 或 3 所述的换能器， 其特征在于： 在振动板上部设有与支 架固定的护网。
7、 如权利要求 2 所述的换能器， 其特征在于： 所述磁芯由环形磁铁以及与 环形磁铁固定的铁芯组成， 其中所述线圈套于所述铁芯上。
PCT/CN2003/001104 2002-12-21 2003-12-22 Procede de lavage par vibration d'ondes acoustiques et transducteur permettant de mettre en oeuvre ce procede WO2004057086A1 (fr)

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CN02151605.7 2002-12-21
CNB021516057A CN1190541C (zh) 2002-12-21 2002-12-21 声波振动式洗涤方法

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CN1190541C (zh) 2005-02-23
AU2003296200A1 (en) 2004-07-14

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