Vacuum cleaner
A technology for vacuum cleaners and dust collection rooms, which is applied to vacuum cleaners, cleaning equipment, household appliances, etc., can solve the problems of reducing sound wave energy, loud fan noise, and power loss of vacuum cleaners, and achieves increased gas flow, good noise reduction effect, and guaranteed The effect of power
Inactive Publication Date: 2009-11-04
金日清洁设备(苏州)有限公司
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Problems solved by technology
[0002] Vacuum cleaners in the prior art usually include a housing, a fan inside the housing, and a cover outside the fan. Because the noise of the fan is very loud when it is working, especially the noise of high-power vacuum cleaners used in hotels or office buildings It is very large and affects people's normal life and work. In order to alleviate the noise, some sound-absorbing materials, such as sponges, are usually placed on the fan or in the casing.
Chinese patent ZL96207867.0 discloses a low-noise vacuum cleaner, which uses a labyrinth-shaped airflow channel formed by a sound-absorbing cover with a spiral-shaped sound-absorbing channel to extend the travel route of the airflow in the vacuum cleaner, so that the sound waves can pass through the sound-absorbing cover multiple times. Reflection attenuation, thereby reducing the energy of the sound wave. However, in this spiral sound-absorbing structure, the sound wave must go through a long route to attenuate most of the energy; in addition, the spiral sound-absorbing structure severely limits the size of the air volume. The vacuum cleaner will lose some power
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[0014] attached Figure 1~2 As a preferred embodiment of the present invention, a vacuum cleaner includes a base 1 with a dust collection chamber 6, a fan 5 arranged on the base 1, a top cover 7 covered on the base 1, and the top cover 7 is provided with The air outlet 4, through the air outlet 4, the base 1 and the top cover 7 form a cavity that can communicate with the air outlet of the blower fan 5 and the outside air. A baffle wall arranged around the fan 5, the baffle wall includes the inner baffle wall 2 surrounding the outside of the fan 5 and the middle baffle wall 3 surrounding the outside of the inner baffle wall 3, an intermediate baffle wall is used in this embodiment, sometimes for To achieve a better sound attenuation effect, the number of intermediate retaining walls will be appropriately increased.
[0015] The inner retaining wall 2 and the middle retaining wall 3 extend from the base 1 to the top cover 7, and the two retaining walls divide the cavity into tw...
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A vacuum cleaner, comprising a base, a fan arranged on the base and a top cover covering the base, a cavity for accommodating the fan is formed between the base and the top cover, and the cavity passes through the fan installed on the top cover. The air outlet is connected with the outside air, and there are at least two baffles surrounding the fan between the base and the top cover, the baffles extend from the base to the top cover, and the baffles divide the cavity into multiple independent The anechoic chamber also has gaps on the retaining walls, and the gaps on two adjacent retaining walls are staggered from each other, and the multiple anechoic chambers communicate with each other only at the gaps. The present invention attenuates the energy of the sound waves by reflecting the sound waves emitted by the fan multiple times, thus having better noise reduction effect.
Description
technical field [0001] The invention relates to a vacuum cleaner. Background technique [0002] Vacuum cleaners in the prior art usually include a housing, a fan inside the housing, and a cover outside the fan. Because the noise of the fan is very loud when it is working, especially the noise of high-power vacuum cleaners used in hotels or office buildings It is very large and affects people's normal life and work. In order to alleviate the noise, some sound-absorbing materials, such as sponges, are usually placed on the fan or in the casing. However, placing the sponge makes it difficult to dissipate the heat of the fan, causing accidents such as fire. Chinese patent ZL96207867.0 discloses a low-noise vacuum cleaner, which uses a labyrinth-shaped airflow channel formed by a sound-absorbing cover with a spiral-shaped sound-absorbing channel to extend the travel route of the airflow in the vacuum cleaner, so that the sound waves can pass through the sound-absorbing cover mult...
Claims
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IPC IPC(8): A47L5/12A47L9/00
Inventor 卞庄
Owner 金日清洁设备(苏州)有限公司