Negative pressure device with noise reduction structure

A negative pressure device and noise reduction technology, which is applied in the field of negative pressure devices, can solve problems such as loud noise, poor user experience, and user discomfort, and achieve the effect of weakening the impact force

Pending Publication Date: 2019-03-29
NINGBO FUJIA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the continuous improvement of people's living standards, more and more families have vacuum cleaners. The negative pressure device is the core component of the vacuum cleaner, and its function is to generate negative pressure in the

Method used

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  • Negative pressure device with noise reduction structure
  • Negative pressure device with noise reduction structure
  • Negative pressure device with noise reduction structure

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Example Embodiment

[0019] Hereinafter, a number of embodiments of the present invention will be disclosed in drawings. For clear description, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventionally used structures and components will be shown in simple schematic ways in the drawings.

[0020] In addition, in the present invention, the descriptions related to "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish between The same technical terms describe only the components or operations, but cannot be understood as indicating or implying their relative impor...

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Abstract

The invention discloses a negative pressure device with a noise reduction structure, which comprises a motor component, a motor front cover and a motor rear cover, wherein a motor fixing bracket is arranged in the motor rear cover, a gap is reserved between the motor fixing bracket and the inner wall of the motor rear cover, the motor component is arranged in the motor fixing bracket, gaps are reserved between the motor component and the inner wall and upper end and lower end of the motor fixing bracket, the front cover of the motor is arranged at the upper end of the rear cover of the motor,a plurality of groups of first air outlet holes which are circumferentially distributed are arranged on the side wall of the motor fixing bracket, the side wall of the motor rear cover is provided with a plurality of groups of second air outlet holes which are circumferentially distributed, and the second air outlet holes and the first air outlet holes are staggered; when in work, the device can make the wind surround in the cavity between the motor fixing bracket and the motor rear cover, namely, the wind output from the negative pressure device flows out after passing through the cavity formed by the motor fixing bracket and the motor rear cover, thereby weakening the impact force of the wind and achieving the purpose of noise reduction.

Description

technical field [0001] The invention relates to the technical field of negative pressure devices for vacuum cleaners, in particular to a negative pressure device with a noise reduction structure. Background technique [0002] With the continuous improvement of people's living standards, more and more families have vacuum cleaners. The negative pressure device is the core component of the vacuum cleaner, and its function is to generate negative pressure in the dust cup to achieve the purpose of dust collection; The negative pressure device used in the device has the disadvantage of high noise when it is working, which will bring discomfort to the user, and has the disadvantage of poor user experience. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a negative pressure device with a noise reduction structure, which interleaves the first air outlet holes on the motor fixing bracket with the second air outlet holes...

Claims

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Application Information

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IPC IPC(8): A47L9/00
CPCA47L9/00
Inventor 王跃旦
Owner NINGBO FUJIA IND
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