The application discloses a perforated plate muffler cover which comprises an inner cover with a plurality of through holes in both radial and axial directions. The outer cover is arranged outside the inner cover and a closed cavity is arranged between the inner cover and the outer cover. The inner cover and the top surface of the outer cover are provided with perforated shaft holes to extend the motor shaft installed in the inner cover. . Because both radial and axial holes of the inner cover are machined, the outer cover is arranged outside the inner cover, and a closed cavity is formed between the inner cover and the outer cover. The low and medium frequency noise produced by the motor located in the inner cover enters the closed cavity from the through hole, and the inner cavity and the outer cover are sealed. When the excitation frequency of the motor is uniform, resonance occurs and consumption of sound energy is achieved, so as to reduce noise. The utility model also discloses a motor with the silencing cover.
【技术实现步骤摘要】
一种多孔穿孔板消音罩及具有其的电机
本申请涉及家电
,更具体而言,涉及一种多孔穿孔板消音罩及具有其的电机。
技术介绍
现有家电领域中电机存在大量中低频噪声,通过改进电机的结构和降低功率来达到降低中低频噪声,但是,造成电机性能降低,况且降噪效果并不理想。因此,如何设计出一种可降低电机中低频噪声的消音罩成为目前亟待解决的问题。
技术实现思路
本技术旨在至少解决现有技术或相关技术中存在的技术问题之一。根据本申请的一个方面,提供了一种多孔穿孔板消音罩,包括,内罩,所述内罩的径向和轴向均设有若干个通孔;外罩设置于所述内罩外部;所述内罩与所述外罩之间设有密闭空腔;其中,所述内罩和所述外罩顶面均设有贯穿的轴孔,以使得安装于所述内罩的电机轴可通过轴孔伸出。可选地,在上述的多孔穿孔板消音罩中,所述内罩的轴向的所述通孔数量为50~360个,所述内罩的径向的所述通孔数量为80~500个。可选地,在上述的多孔穿孔板消音罩中,所述内罩的轴向的所述通孔数量为200个,所述内罩的径向的所述通孔数量为260个。可选地,在上述的多孔穿孔板消音罩中,在所述内罩的底端设有凸沿。可选地,在上述的多孔穿孔板消音罩中,在所述凸沿的圆周均等设有多个固定豁口。可选地,在上述的多孔穿孔板消音罩中,所述内罩和所述外罩均为圆柱形状。本申请提供的多孔穿孔板消音罩,由于内罩的径向和轴向均加工有通孔,外罩设置于内罩的外部,并在内罩和外罩之间形成密闭空腔,位于内罩里面的电机所产生的中低频噪音由通孔进入密闭空腔,密闭空腔和外罩,利用声阻原理,在消声器共振器固有频率和电机激发噪声频率一致时,发生共振,消耗声能,以此实现降低 ...
【技术保护点】
1.一种多孔穿孔板消音罩,其特征在于,包括,内罩,所述内罩的径向和轴向均设有若干个通孔;外罩,设置于所述内罩外部;所述内罩与所述外罩之间设有密闭空腔;其中,所述内罩和所述外罩顶面设有贯穿的轴孔,以使得安装于所述内罩的电机的电机轴延伸。
【技术特征摘要】
1.一种多孔穿孔板消音罩,其特征在于,包括,内罩,所述内罩的径向和轴向均设有若干个通孔;外罩,设置于所述内罩外部;所述内罩与所述外罩之间设有密闭空腔;其中,所述内罩和所述外罩顶面设有贯穿的轴孔,以使得安装于所述内罩的电机的电机轴延伸。2.根据权利要求1所述的多孔穿孔板消音罩,其特征在于,所述内罩的轴向的所述通孔数量为50~360个,所述内罩的径向的所述通孔数量为80~500个。3.根据权利要求2所述的多孔穿孔板消音罩,其特征在于,所述内罩...
【专利技术属性】
技术研发人员:任明旭,邓志强,靳海水,
申请(专利权)人:上海朴渡信息科技有限公司,
类型:新型
国别省市:上海,31
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。