CN102894931A - Dust collector with improved motor cover - Google Patents

Abstract

The invention discloses a dust collector with an improved motor cover. The dust collector comprises a dust collector body, a motor chamber, a motor, a motor cover and a retainer, wherein the motor chamber is arranged behind the dust collector body, the motor is arranged in the motor chamber, the motor cover partially covers the motor and is provided with an air outlet, and the retainer is arranged between the motor cover and the motor chamber and is close to the air outlet so as to change air outlet direction. The dust collector with the improved motor cover is simple in structure, and noise can be effectively reduced in a limited space.

Description

Vacuum cleaner with modified motor hood

technical field

The present invention relates to a vacuum cleaner with an improved motor cover.

Background technique

With the increasing awareness of environmental protection, the noise requirements for vacuum cleaners are getting higher and higher. In order to obtain better noise reduction and noise reduction effects, it is necessary to increase the size of the product to extend the air duct. At the same time, the power requirements of vacuum cleaners are increasing. , which increases the difficulty of noise reduction and increases the cost. How to achieve a better noise reduction effect in a limited space is undoubtedly a major problem in the industry at present.

Contents of the invention

The purpose of the present invention is to provide a vacuum cleaner with a simple structure and an improved motor cover.

The technical solution of the present invention is: a vacuum cleaner with an improved motor cover, which includes a body, a motor room located behind the body, a motor accommodated in the motor room, a motor cover at least partially covering the motor and having an air outlet, wherein It includes a blocking piece arranged between the motor cover and the motor room and close to the air outlet to change the direction of the air outlet.

On the basis of the above technical solutions, it further includes subsidiary technical solutions:

The blocking member is integrally formed on the motor cover, protrudes from the outer edge of the motor cover and abuts against the inner side wall of the motor chamber.

The blocking member partially surrounds the motor cover and is provided with a motor cover air outlet opposite to the air outlet.

It further includes a motor cover that accommodates the motor cover and has an air outlet of the cover, a motor front cover located at the front end of the motor cover, a motor cover sealing ring for sealing between the motor cover and the motor front cover, and a motor cover sealing ring for sealing between the motor and the motor front cover. A sealed motor sealing ring, and an air outlet of the body communicated with the air outlet of the cover.

The air outlet direction of the air outlet of the outer cover is perpendicular to the air outlet direction of the air outlet, and is the same as the air outlet direction of the air outlet of the machine body.

The blocking member is integrally formed on the inner side wall of the motor cover and abuts against the outer edge of the motor cover.

The blocking member is integrally formed on the inner side wall of the motor chamber and abuts against the outer edge of the motor cover.

The stop is a single piece that snaps between the motor housing and the motor housing.

Advantage of the present invention is:

The invention changes the straight air outlet mode of the traditional motor cover into a curved air outlet mode, extends the air outlet duct, effectively reduces the wind energy, and can reduce the noise in a limited space, from the previous noise of 82dB(A) to 76dB(A) A), while simple in structure.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

Fig. 1 is a schematic cross-sectional view of the present invention;

Fig. 2 is an exploded schematic diagram of some components in Fig. 1;

Fig. 3 is a schematic perspective view of the motor cover of the present invention at an angle;

Fig. 4 is similar to Fig. 3, and is a schematic perspective view at another angle;

Among them: 12. Vacuum chamber; 14. Motor room; 20. Motor; 30. Motor cover; 32. Blocking piece; 40. Motor cover; 50. Motor front cover; 60. Motor cover sealing ring; 62. Motor sealing ring; 140, the air outlet of the body; 300, the accommodation cavity; 302, the air outlet; 304, the air outlet of the motor cover;

Detailed ways

Embodiment: as shown in Figure 1-4, the present invention provides a kind of concrete embodiment of the vacuum cleaner with improved motor cover, and it comprises the body that has vacuum chamber 12 and motor chamber 14, the motor chamber 14 that is positioned at the body rear, The motor 20 accommodated in the motor chamber 14, at least partially covering the motor 20 and having a motor cover 30 with an air outlet 302, is arranged between the motor cover 30 and the motor chamber 14 and is close to the air outlet 302 to change the direction of the wind. Part 32, accommodate the motor cover 30 and have the motor cover 40 of the cover air outlet 42, the motor front cover 50 positioned at the front end of the motor cover 40, the motor cover sealing ring 60 for sealing between the motor cover 30 and the motor front cover 50, use The motor sealing ring 62 sealed between the motor 20 and the motor front cover 50 , and the air outlet 140 of the body communicated with the air outlet 42 of the outer cover.

The motor cover 30 is an integrally formed open cylindrical structure, which includes a housing cavity 300 for housing the motor 20 and communicating with the air outlet 302 . And the size of this accommodating chamber 300 matches with the profile of motor 20, and motor cover 30 is divided into three parts along the axial direction: head, middle part, afterbody, wherein the head of motor cover 30 accommodates the impeller cover (not shown) of motor 20 marked), which is larger in diameter than the middle or tail. The air outlet 302 is located in the middle of the motor cover 30 , one side of which is close to the head of the motor cover 30 , and the opposite side is adjacent to the blocking member 32 .

The blocking member 32 is integrally formed on the motor cover 30 , protrudes from the outer edge of the motor cover 30 and abuts against the inner wall of the motor chamber 14 . The blocking member 32 partially surrounds the motor cover 30 and is provided with a motor cover air outlet 304 opposite to the air outlet 302 on the motor cover 30, wherein the motor cover air outlet 304 is a low-lying part of the motor cover 30 and is a blocking member 32 at both ends, so the air flow changes direction under the blocking of the blocking member 32 and thus flows into the motor cover 40 through the motor cover air outlet 304. In this embodiment, as shown in Figure 1, the blocking member 32 It is to prevent the airflow from flowing along the axial direction of the motor 20 , but to flow around the motor cover instead, wherein the blocking member 32 surrounds at least half of the circumference of the motor cover 30 . The air outlet direction of the outer cover air outlet 42 is perpendicular to the air outlet direction of the air outlet 302 , and is the same as the air outlet direction of the body air outlet 140 . Likewise, it can be understood that the blocking member can be integrally formed on the inner side wall of the motor housing 40 and abut against the outer edge of the motor cover 30 , or integrally formed on the inner side wall of the motor chamber 14 and contact the outer edge of the motor cover 30 . Edges against each other, or a single part that is snapped between the motor cover 30 and the motor chamber 14, can change the direction of the wind, and can also achieve the purpose of the present invention.

The invention changes the straight air outlet mode of the traditional motor cover into a curved air outlet mode, extends the air outlet duct, effectively reduces the wind energy, and can reduce the noise in a limited space, from the previous noise of 82dB(A) to 76dB(A) A), while simple in structure.

Of course, the above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the main technical solutions of the present invention shall fall within the protection scope of the present invention.

Claims (8)

1. dust catcher with improved type electric hood, the motor cover (30) that it comprises body, is positioned at the motor room at body rear (14), is housed in motor (20), at least part of coating motor (20) of motor room (14) and an air outlet (302) are arranged is characterized in that: its also comprise be arranged between motor cover (30) and motor room (14) and near air outlet (302) to change a block piece (32) of air-out direction.

2. dust catcher according to claim 1 is characterized in that: it is upper and protrude the outer rim of motor cover (30) and lean with the madial wall of motor room (14) that described block piece (32) is shaped in motor cover (30).

3. dust catcher according to claim 2 is characterized in that: described block piece (32) is upper and be provided with the motor cover air outlet (304) established relative to air outlet (302) in motor cover (30) for part wound motor cover (30).

4. dust catcher according to claim 1 is characterized in that: it further comprises the outsides cover of electric machinery (40) of accommodating motor cover (30) and outer cover air outlet (42) being arranged, the motor front shroud (50) that is positioned at outsides cover of electric machinery (40) front end, is used for the motor cover sealing ring (60) of sealing between motor cover (30) and the motor front shroud (50), is used for the electricity secret seal (62) that seals between motor (20) and the motor front shroud (50) and the body air outlet (140) that is connected with outer cover air outlet (42).

5. dust catcher according to claim 4, it is characterized in that: described outer cover air outlet (42) air-out direction is mutually vertical with the air-out direction of air outlet (302), and identical with body air outlet (140) air-out direction.

6. dust catcher according to claim 5 is characterized in that: described block piece (32) is shaped on the madial wall of outsides cover of electric machinery (40) and leans with the outer rim of motor cover (30).

7. dust catcher according to claim 1 is characterized in that: described block piece (32) is shaped on the madial wall of motor room (14) and leans with the outer rim of motor cover (30).

8. dust catcher according to claim 1 is characterized in that: described block piece (32) is for being buckled in the single part between motor cover (30) and motor room (14).

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