Y7125型磨齿机低噪声吸尘器

降低吸尘器噪声是使Y7125磨齿机噪声达到“标准”要求的关键之一。我们改进了Y7125磨齿机的吸尘器,其噪声降到 70 dB(A)以下,整机噪声保持在74 dB(A)以下,使该产品获得“质量信得过”的称号。 一、吸尘器的工作原理及噪声源的测定 Y7125磨齿机吸尘器的结构如图,其中电动机功率     

一种可自动收放线多自由度清洁的遥控吸尘器

通过对家用吸尘器现状的研究和分析,结合实际需求,提出了一种在住宅中具有一定环境适应性,并且具有自主控制能力的新型家用真空吸尘器。该新型遥控吸尘器是集自动行走、吸尘清洁、全自动收放线、头部摆动伸缩、避障等多功能于一体的新型机电一体化产品,它在原有吸尘器的基础上有机加入多个机电控制装置,解放人的双手。新型遥控吸尘器由双马达独立驱动机构、无级变速机构、六连杆机构和内部嵌入式系统等结合而成,在实际使用中得到了很好的作业效果。论文主要介绍其工作原理及创新设计。     

实用型智能吸尘器传感器技术初探

对智能吸尘器的传感器技术进行初步研究,同时,将该技术应用到实际的项目中,以期开发出价格低、体积小,同时覆盖率能够满足家庭应用的性价比较高的实用型智能吸尘器产品.     

用户行为对家用吸尘器造型设计的影响

随着生活水平的不断提高,居民要求改善居住环境,改变传统的打扫方式,吸尘器的需求量必然会有一个新的突破。用户行为对家用吸尘器造型设计的影响研究以美国IIT设计学院Whitney教授建立的POEM （People,Objects,Environments,Mes?sages）分析框架为基础,从行为的主要因素出发,深入理解用户行为的内涵及其对产品造型设计的影响,从而期望从另一个角度挖掘产品造型设计的规律,摆脱形式化的造型缺陷,为吸尘器造型设计的改良寻找了一个更准确的视角,做出“易用的、实用的”产品,从而提升产品的认知度,为企业带来更大的收益。     

基于逆向工程的产品快速制造的研究

以吸尘器为例,详细阐述了逆向工程技术和快速成型技术在产品设计中的应用和实现。采用三坐标测量机测得吸尘器表面若干空间点数据,利用U G N X 6.0对其点云数据进行处理并完成三维C A D模型的重建,最后基于3D P技术实现对吸尘器原型的快速成型制造,从而为后续对新产品进行快速评价、结构优化验证和性能测试等方面打下坚实的基础。结果表明,逆向工程与快速成型技术相结合,为新产品尤其是复杂型面产品的设计与制造提供了更为广阔的平台,并且缩短产品开发周期、降低试制成本、避免产品研发失败的风险,可以极大地提高企业的竞争力和经济效益。     

基于气固两相流吸尘器风道数值模拟

为了提高吸尘器滤袋的容尘量,对吸尘器尘仓设有导流板的流场进行气固两态数值模拟研究,与常规吸尘器尘仓相比,导流板可以显著保护滤袋滤材的完好性,滤袋内壁粉尘不容易堆积,出风口粉尘体积率相对较少,从而提高吸尘器滤袋的容尘,提高滤袋的寿命。为了验证模型的正确性,采用产品型式实验,参考IEC 60312A标准,对比两种工况下滤袋的容尘,结果表明设有导流板可以提高16.6%滤袋的容尘量,实验结果验证模型的准确性。     

四种新型吸尘器悄然崛起

四种新型吸尘器为微型吸尘器、激光吸尘器、高效吸尘器和杀菌吸尘器。微型吸尘器主要用于家庭清洗大衣、棉被、床单及计算机键盘上的灰尘。这类吸尘器多为手持式,重量轻,吸尘率高,应用领域广泛。激光吸     

应用UGNX进行吸尘器的并行设计

以吸尘器的开发设计为例,阐述应用WAVE技术,实现产品控制结构和产品装配分离的并行工程,以防止重复设计,极大地缩短了开发时间,避免了在后期的设计过程因修改设计导致成本的增加,实现了利润的最大化。     

智能吸尘器行走遍历方式研究

针对大部分智能吸尘器吸尘遍历的算法复杂和遍历效果不佳的问题,提出了以参照物相对定位的方式来确定智能吸尘器在房间的相对位置,以极坐标的形式实现在房间的100%遍历行走吸尘,实验采用超声波测距的方式实现智能吸尘器的相对位置确定.结果表明,此方法简洁高效地实现了智能吸尘器在房间的吸尘遍历,同时也提高了智能吸尘器的避障能力.     

基于Rhino的吸尘器外壳造型设计

证实了计算机辅助设计软件Rhino在吸尘器外壳造型设计中运用的可行性,从吸尘器外壳造型的分析入手,以一款卧式吸尘器的三维建模为例,对设计过程中涉及到的关键技术进行分析,提出一种基于Rhino的吸尘器外壳设计建模的一般方法.     

应用MATLAB图像处理技术获取吸尘效率

针对目前在测算真空吸尘车吸尘效率的过程中,普遍存在人为干扰因素及劳动强度大等问题,提出一种基于MATLAB图像均匀化处理、图像阀值化方法以及图像面积提取技术的测算吸尘效率的新方法,并通过实验证明,应用MATLAB图像处理技术可以快速、高效地获取吸尘效率。     

一种具有吸尘功能的环保型振动式电动剪刀

介绍了一种设计新颖、使用灵活方便、安全环保、生产效率高、产品质量可靠的振动式电动剪刀。剪刀的剪切部分由固定剪刀片和活动剪刀片组成,活动剪刀片的动力来自于电磁铁产生的脉动电磁力。在剪刀的头部安装了一个吸尘器,剪刀工作时吸尘器能够及时吸除剪下的毛头和飞屑。     

基于Rhino的吸尘器外壳造型设计

证实了计算机辅助设计软件Rhino在吸尘器外壳造型设计中运用的可行性,从吸尘器外壳造型的分析入手,以一款卧式吸尘器的三维建模为例,对设计过程中涉及到的关键技术进行分析,提出一种基于Rhino的吸尘器外壳设计建模的一般方法。     

Experimental analysis of flow fields inside intake heads of a vacuum cleaner

The flow structure inside the intake head greatly affects the working efficiency of a vacuum cleaner such as suction power and aero-acoustic noise In this study, the flow inside intake heads of a vacuum cleaner was investigated using qualitative flow visualization and quantitative PIV (Particle Image Velocimetry) techniques The aerodynamic power, suction efficiency and noise level of the intake heads were also measured In order to improve the performance of the vacuum cleaner, inner structure of the flow paths of the intake head, such as trench height and shape of connection chamber were modified. The flow structures of modified intake heads were compared with that of the original intake head The aero-acoustic noise caused by flow separation was reduced and the suction efficiency was also changed due to flow path modification of intake head In this paper, the variations of flow fields for different intake heads are presented and discussed together with results of aerodynamic power, suction efficiency and noise level     

Specifying your requirements

The author explains the power and advantages of product design specification. As an example he considers the first vacuum cleaner launched by Dyson     

Acoustic metamaterial design for noise reduction in vacuum cleaner

Journal of Mechanical Science and Technology - In this study, we investigate the acoustic metamaterial (AMM) design for flow noise reduction when using a vacuum cleaner. The AMM was based on the...     

Aeroacoustic characteristics and noise reduction of a centrifugal fan for a vacuum cleaner

The aeroacoustic characteristics of a centrifugal fan for a vacuum cleaner and its noise reduction method are studied in this paper. The major noise source of a vacuum cleaner is the centrifugal fan. The impeller of the fan rotates at over 3000 rpm, and generates very high-level noise. It was revealed that the dominant noise source is the aerodynamic interaction between the rotating impeller and stationary diffuser. The directivity of acoustic pressure showed that most of the noise propagates backward direction of the fan-motor assembly. In order to reduce the high tonal sound generated from the aerodynamic interaction, unevenly pitched impeller and diffuser, and tapered impeller designs were proposed and experiments were performed. Uneven pitch design of the impeller changes the sound quality while the overall sound power level (SPL) and the performance remains similar. The effect of the tapered design of impeller was evaluated. The trailing edge of the tapered fan is inclined. This reduces the flow interaction between the rotating impeller and the stationary diffuser because of some phase shifts. The static efficiency of the new impeller design is slightly lower than the previous design. However, the overall SPL is reduced by about 4 dB(A). The SPL of the fundamental blade passing frequency (BPF) is reduced by about 6 dB(A) and the 2^nd BPF is reduced about 20 dB(A). The vacuum cleaner with the tapered impeller design produces lower noise level than the previous one, and the strong tonal sound was dramatically reduced.     

Effect of suction nozzle modification on the performance and aero-acoustic noise of a vacuum cleaner

The suction nozzle of a vacuum cleaner was modified to enhance the power performance and to reduce the airflow-induced acoustic noise. The suction power efficiencies of the vacuum cleaner were measured for various nozzles: (1) original nozzle, (2) original nozzle with modified trench height, (3) original nozzle with modified connecting chamber, and (4) a combination of (2) and (3). In addition, the suction pressure and sound pressure level around the suction nozzle were measured to validate the reduction of acoustic noise. The power efficiency and mean suction pressure increased when the trench height of the suction nozzle was increased. This was attributed to the suppression of the flow separation in the suction channel. Modification of the connecting chamber in the original nozzle, which had an abrupt contraction from a rectangular chamber into a circular pipe, into a smooth converging contraction substantially improved the suction flow into the connecting pipe. When both modifications were applied simultaneously, the resulting suction nozzle was more effective from the viewpoints of aerodynamic power increase and sound pressure level reduction.     

真空吸尘器安全阀部件的设计

简述了吸尘器安全阀部件的工作原理、设置位置及受力分析。详细介绍了如何用平均功率法确定安全阀部件的进气孔面积等关键参数,然后通过简化后的两个安全阀工作状态进行安全阀弹簧相关参数的计算,利用获得的参数能够完成安全阀部件的结构设计。