Motor end cover with vibration and noise reduction effects

Abstract

The utility model discloses a motor end cover with vibration and noise reduction effects, which comprises an end cover formed by integral injection molding, and the end cover comprises a triangular end cover plate. A first end cover mounting unit, a second end cover mounting unit and a third end cover mounting unit are respectively arranged at each corner of the end cover cover plate, and each end cover mounting unit is used for being fixedly mounted and connected with a motor shell; wherein a plurality of first reinforcing ribs are arranged on the outer surface of the end cover plate between each end cover mounting unit and the end cover center hole, a plurality of second reinforcing ribs are arranged on the outer surface of the end cover plate between the adjacent end cover mounting units, and the shapes of the first reinforcing ribs are different from those of the second reinforcing ribs; on the premise of not increasing the overall weight of the motor and the cost of the motor, the motor end cover can effectively enhance the structure of the motor, the reinforced structure can effectively suppress the vibration of the motor, the vibration and noise of the motor are obviously improved, and the market competitiveness of a dust collector motor product applying the motor end cover is promoted.

Description

Technical Field

[0001] The utility model belongs to the field of vacuum cleaner motor manufacturing, and particularly relates to a motor end cover with vibration reduction and noise reduction effects. Background Art

[0002] Currently, the end covers of vacuum cleaner motor structures are usually made of plastic parts. With the increase in the power of vacuum cleaner motors, the rotational speed, vibration, and noise of the motors have all increased significantly. As a result, the current end cover structures on the market cannot meet the requirements of high-power motors, and the vibration during the operation of the motors cannot be reasonably suppressed, leading to the vibration damage of motor components and then the failure of the motors.

[0003] The current solutions basically change the plastic end cover to a metal end cover, and the vibration reduction and noise reduction effects of the motor are achieved by increasing the strength of the motor end cover in this way. However, this increases the overall weight and cost of the motor, and reduces the competitiveness of vacuum cleaner motor products.

[0004] Therefore, the applicant hopes to seek technical solutions to solve the above technical problems. Summary of the Invention

[0005] In view of this, the purpose of the utility model is to provide a motor end cover with vibration reduction and noise reduction effects. Without increasing the overall weight and cost of the motor, the structure of the motor can be effectively strengthened. The strengthened structure can effectively suppress the vibration of the motor, significantly improve the vibration and noise of the motor, and enhance the market competitiveness of vacuum cleaner motor products using this motor end cover.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A motor end cover with vibration reduction and noise reduction effects includes an integrally injection-molded end cover. The end cover includes an end cover plate in a triangular shape. A central hole of the end cover for passing through a core shaft is provided at the center of the end cover plate. Each corner of the end cover plate is respectively a first end cover installation unit, a second end cover installation unit, and a third end cover installation unit. Each end cover installation unit is used for fixedly installing and connecting with a motor housing. Among them, a plurality of first reinforcing ribs are provided on the outer surface of the end cover plate between each end cover installation unit and the central hole of the end cover, and a plurality of second reinforcing ribs are provided on the outer surface of the end cover plate between adjacent end cover installation units. The shape of the first reinforcing ribs is different from the shape of the second reinforcing ribs.

[0008] Preferably, the first reinforcing ribs are recessed inward relative to the outer surface of the end cover plate; the second reinforcing ribs are recessed inward relative to the outer surface of the end cover plate.

[0009] Preferably, the first reinforcing ribs are in a quadrilateral shape, and the second reinforcing ribs are in a triangular shape.

[0010] Preferably, the number of the first reinforcing ribs on the outer surface of the end - cover cover plate located between a single end - cover mounting unit and the central hole of the end - cover is 4, and they are arranged in an array.

[0011] Preferably, the number of the second reinforcing ribs on the outer surface of the end - cover cover plate located between a single group of adjacent end - cover mounting units is 2, and they are spaced along the direction of the side length of the triangle where they are located.

[0012] Preferably, the second reinforcing ribs on the outer surface of the end - cover cover plate located between a single group of adjacent end - cover mounting units are mirror - spaced along the direction of the side length of the triangle where they are located.

[0013] Preferably, the second reinforcing rib includes a first right - angled side and a second right - angled side near the outside, and an arc - shaped side located inside, and the first right - angled side and the second right - angled side are respectively connected to both ends of the arc - shaped side.

[0014] Preferably, a number of third reinforcing ribs are provided on the inner surface of the end - cover cover plate between adjacent end - cover mounting units, and the shape of the third reinforcing rib is the same as the shape of the second reinforcing rib.

[0015] Preferably, the first end - cover mounting unit, the second end - cover mounting unit, and the third end - cover mounting unit are bent downward relative to the outer surface of the end - cover cover plate; wherein, mounting holes for fixedly installing and connecting with the motor housing are provided on the bent surface.

[0016] Preferably, the thickness range of the end - cover cover plate is 2 - 5 mm.

[0017] Based on the structure of the injection - molded end - cover, this application proposes a structural design of a specific combination of reinforcing ribs. Specifically, a number of first reinforcing ribs are provided on the outer surface of the end - cover cover plate located between each end - cover mounting unit and the central hole of the end - cover. At the same time, a number of second reinforcing ribs are provided on the outer surface of the end - cover cover plate between adjacent end - cover mounting units. At the same time, the shape of the first reinforcing rib is different from the shape of the second reinforcing rib. The applicant uses the motor end - cover with this structure as the end - cover structure of the vacuum cleaner motor. Through verification of the actual implementation effect, it can be confirmed that the motor end - cover proposed in this application can effectively enhance the structure of the motor without increasing the overall weight and cost of the motor. The strengthened structure can effectively suppress the vibration of the motor, significantly improve the vibration and noise of the motor, and promote the market competitiveness of the vacuum cleaner motor products. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the motor end - cover structure with vibration - damping and noise - reduction effects under the specific implementation manner of the present utility model (showing the outer surface);

[0019] Figure 2Schematic diagram of the motor end cover structure with vibration and noise reduction effects in the specific embodiment of the present utility model (showing the inner surface);

[0020] Figure 3 is Figure 1 Front structure schematic diagram of the outer surface of the motor end cover structure with vibration and noise reduction effects;

[0021] Figure 4 is Figure 3 Cross-sectional view in the E-E direction. Specific embodiment

[0022] An embodiment of the present utility model discloses a motor end cover with vibration and noise reduction effects, including an integrally injection-molded end cover. The end cover includes an end cover plate in a triangular shape, and an end cover center hole for penetrating the core shaft is provided at the center of the end cover plate; each corner of the end cover plate is respectively a first end cover installation unit, a second end cover installation unit, and a third end cover installation unit, and each end cover installation unit is used for fixedly installing and connecting with the motor housing; wherein, a plurality of first reinforcing ribs are provided on the outer surface of the end cover plate between each end cover installation unit and the end cover center hole, and a plurality of second reinforcing ribs are provided on the outer surface of the end cover plate between adjacent end cover installation units, and the shape of the first reinforcing ribs is different from the shape of the second reinforcing ribs.

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, a motor end cover with vibration reduction and noise reduction effects includes an integrally injection-molded end cover. The end cover includes a triangular end cover cover plate 1. At the center of the end cover cover plate 1, there is an end cover central hole 2 for passing through a core shaft (a well-known structure, not shown in the figure) (there is a step 21 on the inner side of the end cover central hole 2); at each corner of the end cover cover plate 1, there are a first end cover mounting unit 3a, a second end cover mounting unit 3b, and a third end cover mounting unit 3c respectively. Each end cover mounting unit (i.e., the first end cover mounting unit 3a, the second end cover mounting unit 3b, and the third end cover mounting unit 3c) is used for fixedly installing and connecting with a motor housing (a well-known structure, which is fixedly installed with the motor stator as a whole, not shown in the figure); preferably, in order to facilitate the installation strength between the motor end cover and the motor housing, in this embodiment, the first end cover mounting unit 3a, the second end cover mounting unit 3b, and the third end cover mounting unit 3c are bent downward relative to the outer surface of the end cover cover plate 1; among them, there are mounting holes 4 for fixedly installing and connecting with the motor housing on the bent surface; preferably, in order to ensure the structural strength of the motor end cover, improve the structural enhancement of the reinforcing rib structure combination, and the vibration reduction and noise reduction effects, in this embodiment, the thickness range of the end cover cover plate 1 is 2-5 mm, more preferably 3-5 mm.

[0025] In this embodiment, on the outer surface 1a of the end cover cover plate between the first end cover mounting unit 3a, the second end cover mounting unit 3b, and the third end cover mounting unit 3c and the end cover central hole 2, there are a number of first reinforcing ribs 5, and on the outer surface 1a of the end cover cover plate between adjacent end cover mounting units, there are a number of second reinforcing ribs 6. The shape of the first reinforcing rib 5 is different from the shape of the second reinforcing rib 6.

[0026] Preferably, in order to reduce the deformation of the injection-molded end cover cover plate 1, which in turn affects the installation performance and strength of the motor end cover, in this embodiment, the first reinforcing rib 5 is recessed inward relative to the outer surface 1a of the end cover cover plate; the second reinforcing rib 6 is recessed inward relative to the outer surface 1a of the end cover cover plate.

[0027] After a large number of experimental explorations, in order to further improve the strength of the motor end cover and effectively suppress the vibration of the motor, preferably, in this embodiment, the first reinforcing rib 5 is in the shape of a quadrilateral (it can be decided whether to set chamfers for each first reinforcing rib 5 according to the situation. In this specific embodiment, the four sides of the first reinforcing rib 5 near the end cover central hole 2 are rounded), and the second reinforcing rib 6 is in the shape of a triangle; preferably, in this embodiment, the second reinforcing rib 6 includes a first right-angle side 6a and a second right-angle side 6b near the outside, and an arc-shaped side 6c (specifically bent outward) on the inside. The first right-angle side 6a and the second right-angle side 6b are respectively connected to the two ends of the arc-shaped side 6c.

[0028] Preferably, in order to further improve the strength of the motor end cover and effectively suppress the vibration of the motor, in this embodiment, the number of the first reinforcing ribs 5 on the outer surface 1a of the end cover plate located between a single end cover mounting unit and the end cover central hole 2 is 4, and they are arranged in an array; preferably, the number of the second reinforcing ribs 6 on the outer surface 1a of the end cover plate located between a single group of adjacent end cover mounting units is 2, and they are spaced apart along the direction of the side length of the triangle where they are located.

[0029] Preferably, in order to further improve the strength of the motor end cover and effectively suppress the vibration of the motor, in this embodiment, the second reinforcing ribs 6 on the outer surface 1a of the end cover plate located between a single group of adjacent end cover mounting units are mirror-spaced along the direction of the side length of the triangle where they are located; a plurality of third reinforcing ribs 7 are provided on the inner surface 1b of the end cover plate between adjacent end cover mounting units, and the shape and layout of the third reinforcing ribs 7 are the same as those of the second reinforcing ribs 6, and they also recess inward along the inner surface 1b of the end cover plate where they are located to prevent the end cover from deforming.

[0030] Based on the structure of the injection-molded end cover, this embodiment proposes a structural design of a specific combination of reinforcing ribs. Specifically, a plurality of first reinforcing ribs 5 are provided on the outer surface 1a of the end cover plate located between each end cover mounting unit and the end cover central hole, and at the same time, a plurality of second reinforcing ribs 6 are provided on the outer surface 1a of the end cover plate between adjacent end cover mounting units. At the same time, the shape of the first reinforcing ribs 5 is different from that of the second reinforcing ribs 6. The applicant uses the above motor end cover provided by this embodiment as the end cover structure of a vacuum cleaner motor. After verifying the actual implementation effect of the vacuum cleaner motor, it can be confirmed that the motor end cover proposed in this embodiment can effectively enhance the structure of the motor without increasing the overall weight and cost of the motor. The strengthened structure can effectively suppress the vibration of the motor, significantly improve the vibration and noise of the motor, and enhance the market competitiveness of the vacuum cleaner motor products.

[0031] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0032] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A motor end cover with vibration and noise reduction effects, characterized in that, It includes an end cover integrally injection-molded. The end cover includes a triangular end cover plate, and a central hole of the end cover for passing through the core shaft is provided at the center of the end cover plate; each corner of the end cover plate is respectively a first end cover mounting unit, a second end cover mounting unit and a third end cover mounting unit, and each end cover mounting unit is used for fixedly installing and connecting with the motor housing; wherein, a plurality of first reinforcing ribs are provided on the outer surface of the end cover plate between each end cover mounting unit and the central hole of the end cover, and a plurality of second reinforcing ribs are provided on the outer surface of the end cover plate between adjacent end cover mounting units, and the shape of the first reinforcing rib is different from the shape of the second reinforcing rib.

2. The motor end cover with vibration and noise reduction effects according to claim 1, characterized in that, The first reinforcing rib is recessed inward relative to the outer surface of the end cover plate; the second reinforcing rib is recessed inward relative to the outer surface of the end cover plate.

3. The motor end cover with vibration and noise reduction effects according to claim 1, characterized in that, The first reinforcing rib is in the shape of a quadrilateral, and the second reinforcing rib is in the shape of a triangle.

4. The motor end cover with vibration reduction and noise reduction effects according to claim 1, characterized in that, The number of the first reinforcing ribs on the outer surface of the end cover plate between a single end cover mounting unit and the central hole of the end cover is 4, and they are arranged in an array.

5. The motor end cover with vibration and noise reduction effects according to claim 1, characterized in that, The number of the second reinforcing ribs on the outer surface of the end cover plate between a single group of adjacent end cover mounting units is 2, and they are spaced along the length direction of the triangle side where they are located.

6. The motor end cover with vibration and noise reduction effects according to claim 5, wherein The second reinforcing ribs on the outer surface of the end cover plate between a single group of adjacent end cover mounting units are mirror-image spaced along the length direction of the triangle side where they are located.

7. The motor end cover with vibration and noise reduction effect according to claim 1 or 3 or 5 or 6, characterized in that, The second reinforcing rib includes a first right-angled side and a second right-angled side near the outside, and an arc-shaped side located inside, and the first right-angled side and the second right-angled side are respectively connected to both ends of the arc-shaped side.

8. The motor end cover with vibration and noise reduction effects according to claim 1, characterized in that, A plurality of third reinforcing ribs are provided on the inner surface of the end cover plate between adjacent end cover mounting units, and the shape of the third reinforcing rib is the same as the shape of the second reinforcing rib.

9. The motor end cover with vibration and noise reduction effects according to claim 1, characterized in that, The first end cover mounting unit, the second end cover mounting unit and the third end cover mounting unit are bent downward relative to the outer surface of the end cover plate; wherein, mounting holes for fixedly installing and connecting with the motor housing are provided on the bent surface.

10. The motor end cover with vibration and noise reduction effects according to claim 1, characterized in that, The thickness range of the end cover plate is 2-5 mm.

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