CN209984148U - A vacuum cleaner that can reduce noise - Google Patents

Abstract

The utility model discloses a dust collector capable of reducing noise, which comprises a fan, a dust collection box, a shell and a horn-shaped cover, wherein the dust collection box is provided with an opening for dust to enter and is used for collecting external dust under the negative pressure action of the fan, the fan and the dust collection box are both arranged in the shell, the suction opening of the fan faces the dust collection box, the horn-shaped cover is sleeved on the fan, one end of the large opening of the horn-shaped cover is close to the suction opening of the fan, the other end of the small opening is far away from the suction opening of the fan, the suction opening of the large opening of the horn-shaped cover close to the fan can collect the wind generated by the suction opening of the fan in the maximum range, so that the wind moves to the small opening along the inner wall of the horn-shaped cover, because the width of the large opening of the horn-shaped cover extending to the small opening gradually decreases, the wind plays a guiding role and then is intensively discharged at the, thereby reducing noise.

Description

A vacuum cleaner that can reduce noise

technical field

The utility model relates to the field of household appliances, in particular to a vacuum cleaner capable of reducing noise.

Background technique

The existing vacuum cleaner absorbs dust and debris by generating negative air pressure in the casing by a fan. The fan generally uses a motor to drive the blades to rotate at a high speed, and the air will run around in the casing and generate a lot of noise.

Utility model content

In order to solve the above technical problems, the purpose of the present invention is to provide a vacuum cleaner capable of reducing noise.

The technical scheme adopted by the utility model is:

A vacuum cleaner capable of reducing noise, comprising a fan, a dust collecting box, a casing and a horn-shaped cover, the dust collecting box is provided with an opening for entering dust, and is used for collecting external dust under the action of the negative pressure of the fan, The fan and the dust collecting box are both arranged in the casing, and the air outlet of the fan is facing the dust collecting box. One end is away from the exhaust port of the fan.

As a further improvement of the present invention, the housing is provided with a handle which is convenient for carrying.

As a further improvement of the present invention, the casing is configured as an aluminum alloy casing.

As a further improvement of the present invention, an aluminum alloy sleeve is also included, the aluminum alloy sleeve wraps the outer side wall of the motor, and the horn-shaped cover is located in the aluminum alloy sleeve.

As a further improvement of the present invention, a battery for supplying electric energy to the fan is also arranged inside the casing.

The beneficial effects of the present utility model:

In the utility model, the horn-shaped cover is sleeved on the fan, one end of the large opening of the horn-shaped cover is close to the air outlet of the fan, and one end of the small opening is far away from the air outlet of the fan. One end of the large opening of the horn-shaped hood is close to the air outlet of the fan, which can collect the wind generated by the air outlet of the fan to the greatest extent, so that the wind moves along the inner wall of the horn-shaped hood to the small opening. Due to the large opening of the horn-shaped hood The width gradually decreases toward the small opening, which guides the wind, and then concentrates the discharge at the small opening, thereby reducing the noise.

Description of drawings

The specific embodiments of the present utility model will be further described below with reference to the accompanying drawings.

Fig. 1 is the appearance structure schematic diagram of the present utility model.

Figure 2 is a schematic diagram of the structure of the present utility model split.

FIG. 3 is a schematic view of the appearance structure of the present invention from another perspective.

4 is a schematic diagram of the noise reduction principle of the present invention.

Detailed ways

As shown in Figures 1-4, a vacuum cleaner capable of reducing noise includes a fan 1, a dust collecting box 2, a housing 3 and a horn-shaped cover 4. The dust collecting box 2 is provided with an opening for dust to enter, for The external dust is collected by the negative pressure of the fan 1. The fan 1 and the dust collecting box 2 are both arranged in the casing 3 and the air outlet of the fan 1 faces the dust collecting box 2. The horn-shaped cover 4 is sleeved. On the fan 1 , one end of the large opening 41 of the horn-shaped cover 4 is close to the air outlet of the fan 1 , and one end of the small opening 42 is far away from the air outlet of the fan 1 . One end of the large opening 41 of the horn-shaped cover 4 is close to the air outlet of the fan 1, which can collect the wind generated by the air outlet of the fan 1 in the maximum range, so that the wind moves along the inner wall of the horn-shaped cover 4 to the small opening 42. The width of the large opening 41 of the horn-shaped cover 4 toward the small opening 42 gradually decreases, which guides the wind, and then the small opening 42 is concentrated to reduce the noise, and the dotted line in FIG. Air flow direction line when hood.

Further, the housing 3 is provided with a handle 6 which is convenient for carrying.

The casing 3 is set as an aluminum alloy casing, which can absorb or isolate the EMI radiation generated by the fan 1, can effectively prevent the leakage of EMI radiation, reduce the pollution of EMI radiation, and reduce the interference obtained by other household appliances. , has practicality.

The utility model also includes an aluminum alloy set 7, the aluminum alloy set 7 wraps the outer side wall of the motor, and the horn-shaped cover 4 is located in the aluminum alloy set 7, which further improves the performance of absorbing EMI radiation.

A battery 8 for supplying electric energy to the fan 1 is also arranged inside the casing 3 .

The above are only the preferred embodiments of the present invention, and the present invention is not limited to the above-mentioned embodiments, as long as the technical solutions that achieve the purpose of the present invention by basically the same means fall within the protection scope of the present invention.

Claims (5)

1. a vacuum cleaner capable of reducing noise, it is characterized in that: comprise fan, dust collecting box, housing and horn-shaped cover, and this dust collecting box is provided with the opening that dust enters, for the negative pressure effect of described fan To collect external dust, the fan and the dust box are all arranged in the casing, and the air outlet of the fan faces the dust box. The air outlet and one end of the small opening are far away from the air outlet of the fan. 2 . The vacuum cleaner capable of reducing noise according to claim 1 , wherein the housing is provided with a handle that is convenient for carrying. 3 . 3 . The vacuum cleaner capable of reducing noise according to claim 1 , wherein the casing is an aluminum alloy casing. 4 . 4 . The vacuum cleaner capable of reducing noise according to claim 1 , further comprising an aluminum alloy casing, the aluminum alloy casing wraps the outer side wall of the motor, and the horn-shaped cover is located in the aluminum alloy casing. 5 . 5 . The vacuum cleaner capable of reducing noise according to claim 1 , wherein a battery for supplying electric power to the fan is further provided inside the casing. 6 .

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