End cover structure capable of reducing noise and reducing production cost

Abstract

The utility model discloses an end cover structure capable of reducing noise and production cost. The end cover structure comprises a machine shell, a fan cover connected with one end of the machine shell is arranged at one end of the machine shell, a rotating shaft extending into the fan cover is arranged in the middle of the machine shell, a commutator is arranged on the rotating shaft, and a supporting sleeve, a pressing ring, a nut, a fixed impeller and a movable impeller are sequentially arranged at the end, close to the fan cover, of the commutator. The utility model has the beneficial effects that the end cover and the fluid fan blades are arranged into an integrated structure, so that several assembling steps are reduced in the assembling process, the assembling time is shortened, the assembling efficiency is improved, the part processing cost and the assembling cost are also greatly reduced, firstly, the noise of the motor caused by the traditional assembly of the end cover is reduced, and the assembling efficiency is improved; and the fluid fan blade design is also carried out at the rotor end, so that the fluid trend is more accurate, and the cooling effect of the motor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an end cover structure capable of reducing noise and production costs. Background Art

[0002] In the prior art, the end cover part inside the motor is basically in the form and structure of an end cover plus a fluid fan blade that are separately fixed and installed. However, this structure has many steps in the assembly process, and the assembly is cumbersome. At the same time, the assembly time is long and the efficiency is low. In addition, since there are many components in the end cover part, the parts processing cost is high. Utility Model Content

[0003] The purpose of the utility model is to provide an end cover structure that can reduce noise and production costs, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an end cover structure that can reduce noise and reduce production costs, including a casing, one end of the casing is provided with a wind hood connected thereto, the middle of the casing is provided with a rotating shaft extending into the wind hood, the rotating shaft is provided with a commutator, and the end of the commutator close to the wind hood is provided with a support sleeve, a pressure ring, a nut, a stator impeller and a movable impeller in sequence.

[0005] Further optimized, a carbon brush assembly is provided on the outside of the commutator.

[0006] Further optimized, an end cover is provided at the lower end of the carbon brush assembly.

[0007] Further optimized, the end cover is an integrally formed structure of the end cover and the fluid impeller, which reduces several assembly steps during the assembly process, while reducing assembly time and increasing assembly efficiency.

[0008] Further optimized, the end cover is provided with a bevel structure of the buckling piece, and the bevel angle is 10°-22°.

[0009] Further optimized, the end cover is installed in cooperation with the casing through a rotating shaft, and is fixedly connected by a pressure ring, a support sleeve, a moving impeller and a nut.

[0010] Further optimized, the ratio of the outer diameters of the stator impeller and the movable impeller is 1.02-1.05.

[0011] Beneficial Effects

[0012] The end cover structure provided by the utility model can reduce noise and reduce production costs. The end cover fluid fan blades are set as an integrated structure, which reduces several assembly steps in the assembly process, while reducing the assembly time, increasing the assembly efficiency, and greatly reducing the parts processing cost and assembly cost. First of all, it reduces the noise of the traditional end cover that needs to be assembled to the motor, and also designs the fluid fan blades at the rotor end to make the fluid flow more precise, thereby improving the cooling effect of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic cross-sectional view of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the end cover structure of the utility model;

[0015] Figure 3 It is a top view schematic diagram of the end cover structure of the utility model. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] Example

[0018] like Figure 1-3 As shown, an end cover structure that can reduce noise and production costs includes a casing 10, one end of the casing 10 is provided with a wind hood 1 connected thereto, the middle of the casing 10 is provided with a rotating shaft 9 extending into the wind hood 1, a commutator 8 is provided on the rotating shaft 9, and the end of the commutator 8 close to the wind hood 1 is provided with a support sleeve 5, a pressure ring 3, a nut 2, a fixed impeller and a movable impeller 4 in sequence.

[0019] In this embodiment, a carbon brush assembly 7 is provided outside the commutator 8 .

[0020] An end cover 6 is provided at the lower end of the carbon brush assembly 7. The end cover 6 is an integrated structure of the end cover and the fluid fan blade, which reduces several assembly steps in the assembly process, while reducing the assembly time, increasing the assembly efficiency, and greatly reducing the parts processing cost and assembly cost. First of all, it reduces the noise of the motor caused by the traditional end cover that needs to be assembled.

[0021] The end cover 6 is provided with a beveled structure of the buckling plate, and the beveled angle is 10°-22°, which has the best noise reduction effect; there is a gap design between the end cover 6 and the impeller 4, thereby reducing wind noise and reducing the noise of the entire machine.

[0022] The end cover 6 is installed in cooperation with the casing 10 through the rotating shaft 9, and is fixedly connected by the pressure ring 3, the support sleeve 5, the impeller 4 and the nut 2, omitting the parts that need to be assembled in the traditional end cover and directly assembling.

[0023] The outer diameter ratio of the fixed impeller to the movable impeller 4 is 1.02-1.05, which has a better noise reduction effect.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the utility model content within the protection scope of the utility model.

Claims

1. An end cover structure capable of reducing noise and production costs, characterized in that: The invention comprises a casing (10), one end of which is provided with a wind cover (1) connected thereto, a rotating shaft (9) extending into the wind cover (1) is provided in the middle of the casing (10), a commutator (8) is provided on the rotating shaft (9), and a support sleeve (5), a pressure ring (3), a nut (2), a fixed impeller and a movable impeller (4) are provided in sequence at one end of the commutator (8) close to the wind cover (1).

2. The end cover structure capable of reducing noise and production cost according to claim 1, characterized in that: A carbon brush assembly (7) is provided on the outside of the commutator (8).

3. The end cover structure capable of reducing noise and production cost according to claim 2 is characterized in that: An end cover (6) is provided at the lower end of the carbon brush assembly (7).

4. The end cover structure capable of reducing noise and production cost according to claim 3 is characterized in that: The end cover (6) is an integrally formed structure of the end cover and the fluid impeller.

5. The end cover structure capable of reducing noise and production cost according to claim 1, characterized in that: The end cover (6) is provided with a buckling plate bevel structure, and the bevel angle is 10°-22°.

6. The end cover structure capable of reducing noise and production cost according to claim 1, characterized in that: The end cover (6) is mounted in cooperation with the casing (10) via a rotating shaft (9), and is fixedly connected via a pressure ring (3), a support sleeve (5), a moving impeller (4) and a nut (2).

7. The end cover structure capable of reducing noise and production cost according to claim 1, characterized in that: The ratio of the outer diameters of the fixed impeller and the movable impeller (4) is 1.02-1.05.

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