Motor noise reduction device and dust collector

Abstract

The utility model discloses a motor noise reduction device and dust collector, it is used for dust collector's motor noise reduction, its characterized in that it includes: the motor cover body with the cover body cavity, with the motor cover body interlock's motor cover, and the motor cover body and the motor cover between the accommodation in the cover body cavity and the motor inner cover of located, wherein the motor inner cover and motor cover body between be provided with the soft material for the noise reduction. The utility model discloses the advantage: through double -deck motor cover and realize the noise reduction, and again through the soft material prevents the vibration between motor inner cover and motor cover, to further sound elimination.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaning, and in particular to a motor noise reduction device and a vacuum cleaner. Background Technology

[0002] Currently, most of the noise generated by vacuum cleaners comes from the motor. To reduce noise, a motor cover is needed. A similar technology can be found in Chinese invention patent CN106691303A. However, since it is a single-layer motor cover, its noise reduction effect is more limited. The industry has also proposed a double-layer motor cover structure with an inner motor cover and an outer motor cover. However, the air duct in this structure is more complex, and when the gap between the inner motor cover and the outer motor cover is too small, it is easy to cause interference due to vibration, which will also generate noise. Therefore, it is necessary to improve it. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a motor noise reduction device and a vacuum cleaner, which achieves noise reduction by means of a double-layer motor cover, and uses soft materials to prevent vibration between the inner and outer motor covers, so as to further reduce noise.

[0004] To achieve the purpose of this utility model, the first technical solution provided by this utility model is: a motor noise reduction device and a vacuum cleaner, which is used for motor noise reduction of a vacuum cleaner, characterized in that it includes: a motor outer cover having an outer cover cavity, a motor outer cover cover that is tightly fitted to the motor outer cover, and a motor inner cover housed in the outer cover cavity and located between the motor outer cover and the motor outer cover cover, wherein a soft material for noise reduction is provided between the motor inner cover and the motor outer cover.

[0005] Based on the above technical solution, the following supplementary technical solutions are further included: The soft material includes an inner cover cushioning pad located at one end of the motor inner cover, or an inner cover cushioning component located on one side of the motor inner cover.

[0006] It also includes a first motor buffer pad located at one end of the motor and a second motor buffer pad located at the other end of the motor.

[0007] It also includes sound-absorbing cotton that is fitted onto the motor and located inside the motor housing.

[0008] The cross-sectional area of ​​the inner cover buffer pad is smaller than that of the inner cover buffer component, and the inner cover buffer pad is provided with a groove, while the motor inner cover is provided with a protrusion that mates with the groove.

[0009] The motor cover includes an air inlet grille connected to the motor air inlet, and an outer cover mounting hole adjacent to the air inlet grille.

[0010] It also includes a pressure relief valve located in the mounting hole of the outer cover.

[0011] The motor inner cover includes an inner cover cavity that is open at one end and closed at the other end, and an inner cover opening that communicates with the inner cover cavity, wherein the inner cover opening is located on one side of the inner cover cavity.

[0012] The second technical solution provided by this utility model is a vacuum cleaner, which includes a body, a dust cup detachably connected to the body, a motor located inside the body, and a motor noise reduction device located inside the body and reducing noise of the motor, wherein the motor noise reduction device is the motor noise reduction device described in the first technical solution.

[0013] The body includes an air inlet located at one end and connected to the air inlet of the dust cup, a pair of rollers located at the other end, and a handle located between the air inlet and the rollers.

[0014] Compared with the prior art, the present invention has the following positive effects: noise reduction is achieved by using a double-layer motor cover, and further noise reduction is achieved by using soft materials to prevent vibration between the inner and outer motor covers. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an exploded view of the present invention from one perspective; Figure 2 This is an exploded view of the present invention from another perspective; Figure 3 This is a top view of the second embodiment of the present invention; Figure 4 for Figure 3 Sectional view of line AA in the middle; Figure 5 This is a perspective view of the second embodiment of the present invention. Detailed Implementation

[0017] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0020] Example: Figure 1-2 As shown, this utility model discloses a first embodiment of a motor noise reduction device for reducing noise in a vacuum cleaner motor 4000. It includes: a motor outer cover 1000 having an outer cover cavity 1200; a motor outer cover cover 2000 that is tightly fitted to the motor outer cover 1000; a motor inner cover 3000 housed within the outer cover cavity 1200 and located between the motor outer cover 1000 and the motor outer cover cover 2000; sound-absorbing cotton 4200 fitted onto the motor 4000 and located within the motor inner cover 3000; a first motor buffer pad 2400 located at one end of the motor 4000; and a second motor buffer pad 2420 located at the other end of the motor 4000. A soft material for noise reduction is provided between the motor inner cover 3000 and the motor outer cover 1000.

[0021] The motor housing 1000 is roughly rectangular, hollow inside, and one end of the housing cavity 1200 is open and covered by the motor housing cover 2000. Both the motor housing 1000 and the motor housing cover 2000 are injection molded parts.

[0022] The soft material includes an inner cover buffer pad 2460 located at one end of the motor inner cover 3000, or an inner cover buffer member 2480 located on one side of the motor inner cover 3000. The cross-sectional area of ​​the inner cover buffer pad 2460 is smaller than that of the inner cover buffer member 2480. The inner cover buffer pad 2460 is circular and has grooves on its surface, while the inner cover buffer member 2480 is sheet-shaped and has clearance holes.

[0023] The motor cover 2000 includes an air inlet grille 2020 connected to the air inlet of the motor 4000, an air inlet mounting hole 2040 adjacent to the air inlet grille 2020, and a pressure relief valve 5000 located in the air inlet mounting hole 2040.

[0024] The motor inner cover 3000 includes an inner cover cavity 3020 that is open at one end and closed at the other end, and an inner cover opening 3040 that communicates with the inner cover cavity 3020, wherein the inner cover opening 3040 is located on one side of the inner cover cavity 3020. The motor inner cover 3000 is provided with a protrusion that mates with the groove of the inner cover buffer pad 2460.

[0025] like Figure 3-5 As shown, this utility model discloses a second embodiment of a vacuum cleaner, which includes a body 100, a dust cup 200 detachably connected to the body 100, a motor 4000 located within the body 100, and a motor noise reduction device located within the body 100 for reducing noise in the motor 4000. The motor noise reduction device is the same as that in the first embodiment, and includes: a motor outer cover 1000 having an outer housing cavity 1200, and a motor outer cover 200 that is tightly fitted to the motor outer cover 1000. 0, and an inner motor cover 3000 housed within the outer cover cavity 1200 and located between the outer motor cover 1000 and the outer motor cover 2000, a sound-absorbing cotton 4200 fitted onto the motor 4000 and located within the inner motor cover 3000, a first motor buffer pad 2400 located at one end of the motor 4000, and a second motor buffer pad 2420 located at the other end of the motor 4000, wherein a soft material for noise reduction is provided between the inner motor cover 3000 and the outer motor cover 1000.

[0026] The body 100 includes an air inlet 102 located at one end and connected to the air inlet end of the dust cup 200, a pair of rollers 300 located at the other end, and a body handle 140 located between the air inlet 102 and the rollers 300.

[0027] The dust cup 200 includes a dust cup cavity 220 located therein for collecting dust, a dust cup handle 240 disposed adjacent to the air inlet 102, a dust cup cover 260 located at the top of the dust cup handle 240 and covering the dust cup cavity 220, and a dust cup filter element 280 located at the air outlet of the dust cup cavity 220 and upstream of the motor 4000. The dust cup handle 240 is used to unlock the dust cup cover 260, facilitating its removal to empty the dust from the dust cup cavity 220. The cross-sectional area of ​​the dust cup filter element 280 is larger than the cross-sectional area of ​​the outer cover's air inlet grille 2020 to reduce airflow noise.

[0028] The advantages of this invention are: noise reduction is achieved through a double-layer motor cover, and further noise reduction is achieved by using soft materials to prevent vibration between the inner and outer motor covers.

[0029] The above are merely preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and improvements made by those skilled in the art without departing from the inventive concept of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A motor noise reduction device for reducing noise in a vacuum cleaner motor (4000), characterized in that... It includes: The motor housing (1000) has an outer housing cavity (1200), a motor housing cover (2000) that is tightly fitted to the motor housing (1000), and a motor inner housing (3000) housed in the outer housing cavity (1200) and located between the motor housing (1000) and the motor housing cover (2000), wherein a soft material for noise reduction is provided between the motor inner housing (3000) and the motor housing (1000).

2. The motor noise reduction device according to claim 1, characterized in that: The soft material includes an inner cover buffer pad (2460) located at one end of the motor inner cover (3000), or an inner cover buffer member (2480) located on one side of the motor inner cover (3000).

3. The motor noise reduction device according to claim 2, characterized in that... It also includes a first motor buffer pad (2400) located at one end of the motor (4000) and a second motor buffer pad (2420) located at the other end of the motor (4000).

4. The motor noise reduction device according to claim 3, characterized in that... It also includes sound-absorbing cotton (4200) that is fitted onto the motor (4000) and located inside the motor housing (3000).

5. The motor noise reduction device according to claim 4, characterized in that: The cross-sectional area of ​​the inner cover buffer pad (2460) is smaller than that of the inner cover buffer (2480), and the inner cover buffer pad (2460) is provided with a groove, while the motor inner cover (3000) is provided with a protrusion that cooperates with the groove.

6. The motor noise reduction device according to claim 1, 2, 3, 4, or 5, characterized in that: The motor cover (2000) includes an air inlet grille (2020) connected to the air inlet of the motor (4000) and an outer cover mounting hole (2040) adjacent to the air inlet grille (2020).

7. The motor noise reduction device according to claim 6, characterized in that... It also includes a pressure relief valve (5000) located in the mounting hole (2040) of the outer cover.

8. The motor noise reduction device according to claim 6, characterized in that: The motor inner cover (3000) includes an inner cover cavity (3020) that is open at one end and closed at the other end, and an inner cover opening (3040) that communicates with the inner cover cavity (3020), wherein the inner cover opening (3040) is located on one side of the inner cover cavity (3020).

9. A vacuum cleaner, characterized in that... It includes: The device comprises a body (100), a dust cup (200) detachably connected to the body (100), a motor (4000) located within the body (100), and a motor noise reduction device located within the body (100) for reducing noise in the motor (4000), wherein the motor noise reduction device is the motor noise reduction device as described in claim 1.

10. The vacuum cleaner according to claim 9, characterized in that: The body (100) includes an air inlet (102) located at one end and connected to the air inlet end of the dust cup (200), a pair of rollers (300) located at the other end, and a body handle (140) located between the air inlet (102) and the rollers (300).

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