CN219918605U - Anti-loosening and anti-friction low-noise motor - Google Patents

Abstract

The utility model relates to the technical field of motors, in particular to an anti-loosening and anti-friction low-noise motor which comprises a motor shell consisting of a lower shell assembly and an upper cover assembly, wherein a sound insulation cavity is formed in the motor shell; an inner rotor assembly is assembled at the inner axis of the lower shell, and an elastic damping piece is filled between the inner rotor assembly and the motor shell; the upper cover assembly comprises a rear end cover and a rear cover, and the rear end cover is assembled between the rear cover and the lower shell assembly; the side wall of the rear end cover is provided with a notch, an end cover wiring assembly is assembled in the notch, and the side wall of the rear cover is provided with a wire guide hole which penetrates to the outside of the motor; the flat cable inside the motor and the assembly on the parts are compact, and the outside assembly part can strengthen the whole fixed inside and outside of the motor to reduce the noise, and simultaneously reduce the noise of the friction motor when the inner rotor assembly operates.

Description

Anti-loosening and anti-friction low-noise motor

Technical Field

The utility model relates to the technical field of motors, in particular to an anti-loosening and anti-friction low-noise motor.

Background

In order to reduce the noise of the motor, the stator of the low-noise motor needs to be designed with consideration of the source and propagation path of the noise, and the appropriate materials and structures are adopted to reduce the gap between the stator and the rotor as much as possible so as to reduce the mechanical vibration and noise generation.

The noise generated by the motor is due to wear and loosening that may occur when the motor is operated. Therefore, in order to solve the technical problem of excessive noise of the motor, besides considering the friction caused by the rotation of the rotor, the whole assembly of the motor should be considered to be stable so as to reduce the looseness of each part in the motor.

Disclosure of Invention

The utility model aims at: based on the motor design, realize that each equipment is convenient, the winding displacement draws out neatly to guarantee to assemble on the fixity better, prevent the too big technical problem of noise that wear and looseness brought each other.

A low noise motor with looseness prevention and friction prevention comprises a motor shell composed of a lower shell assembly and an upper cover assembly, wherein a sound insulation cavity is formed in the motor shell; an inner rotor assembly is assembled at the inner axis of the lower shell, and an elastic damping piece is filled between the inner rotor assembly and the motor shell; the upper cover assembly comprises a rear end cover and a rear cover, and the rear end cover is assembled between the rear cover and the lower shell assembly; the side wall of the rear end cover is provided with a notch, an end cover wiring assembly is assembled in the notch, and the side wall of the rear cover is provided with a wire guide which penetrates to the outside of the motor.

Further, a bearing fixed inside the motor shell is arranged at the center of the inner rotor assembly; the upper end of the bearing is provided with an encoder near the periphery of the rear end cover and the rear cover, and both sides of the encoder are provided with fixing lugs fixed on the rear cover.

Further, the four corners of the lower end of the lower shell assembly are provided with assembling plates along the periphery, and the upper parts of the assembling plates are arc-shaped guiding positions.

Further, the elastic damping piece is provided with a plurality of groups of nitrile rubber strips, and the nitrile rubber strips are arranged on the inner side of the lower shell in a surrounding mode at intervals.

Further, an assembling nitrile rubber strip is arranged on the inner side of the lower shell, and a strip-shaped long hole is formed.

The beneficial effects of the utility model are as follows:

the flat cable inside the motor and the assembly on the parts are compact, and the outside assembly part can strengthen the whole fixed inside and outside of the motor to reduce the noise, and simultaneously reduce the noise of the friction motor when the inner rotor assembly operates.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Fig. 1 is a schematic view of the external structure of the whole motor.

Fig. 2 is an exploded view of the motor.

FIG. 3 is a schematic view of the internal assembly structure of the lower housing assembly.

Fig. 4 is a schematic view of the structure of the upper cover assembly.

The figures in the drawings are respectively: the sound insulation assembly comprises a lower shell assembly-1, an upper cover assembly-2, a sound insulation cavity-3, an inner rotor assembly-4, an elastic damping piece-5, a rear end cover-21, a rear cover-22, a notch-23, an end cover wiring assembly-6, a wire guide hole-24, a bearing-41, an encoder-42, a fixing lug-43, an assembly plate-11, a guide position-12 and a strip hole-13.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, the present utility model includes a motor housing comprising a lower housing assembly and an upper cover assembly, and a sound insulation chamber is formed inside the motor housing; an inner rotor assembly is assembled at the inner axis of the lower shell, and an elastic damping piece is filled between the inner rotor assembly and the motor shell; the upper cover assembly comprises a rear end cover and a rear cover, and the rear end cover is assembled between the rear cover and the lower shell assembly; the side wall of the rear end cover is provided with a notch, an end cover wiring assembly is assembled in the notch, and the side wall of the rear cover is provided with a wire guide which penetrates to the outside of the motor.

Embodiment one:

the mode of making an uproar falls mainly lies in the antifriction nature and the steadiness of equipment between each subassembly, first of all, through the equipment between lower casing assembly 1 and upper cover assembly 2, can form outside motor casing, make the operation of each part operate in the middle sound cavity 3 in inside, thereby separate with outside, the noise is produced at first because the friction force that produces inside rotor rotation, consequently, in order to be aimed at this technical problem, it has elastic damping piece 5 to fill between inner rotor assembly 4 and the motor casing, concretely, elastic damping piece 5 sets up into multiunit butanall rubber strip, realize the interval type equipment through the rectangular hole 13 of lower casing inboard department, mainly play at stator casing and butanall rubber strip be interference fit, the stator is producing damping force always, make the motor release at the in-process that rotates, motor rotation noise and vibration frequency big problem have been avoided, make its noise and vibration frequency lower.

Embodiment two:

secondly, the motor generates noise and looseness of each component, so that in order to further reduce the noise caused by looseness when the motor operates, the internal wire and the components are fixed, for the arrangement of the trend of the wire, the side wall of the rear end cover 21 is provided with a notch 23, the end cover wiring assembly 6 for fixing wires is assembled in the notch 23, the wires are led out from the upper end of the motor through the end cover wiring assembly 6 and then through the wire hole 24 on the side wall of the rear cover 22 in the wiring process, so as to be electrically connected with other devices, the wires can be conveniently and firmly fixed under the action of the end cover wiring assembly 6 and the wiring action of the wire hole 24, the vibration and the shaking are avoided, and the wires collide with other components,

meanwhile, for the inner rotor assembly 4 in the motor, the inner rotor assembly is assembled and fixed in the motor by the bearing 41, the encoder 42 is arranged at the upper end of the bearing 41 near the periphery of the rear end cover 21 and the rear cover 22, the fixing lugs 43 fixed on the rear cover 22 are arranged at two sides of the encoder 42, on one hand, the encoder 42 is assembled at the upper end of the rear end cover 21, the encoder 42 is accommodated through the opening at the lower end of the rear cover 22, the encoder 42 is fixed on the rear end cover 21 by the fixing lugs 43, and wires on the encoder 42 can be led out to the outside directly through the wire guide holes 24 arranged on the rear cover 22.

With the above embodiment, the encoder 42 assembly and the wire arrangement routing inside the motor can be designed so as to enhance the position fixation of the internal components thereof.

Embodiment III:

in order to fix the whole assembly of motor, the four corners of lower end of lower shell assembly 1 are equipped with assembly plate 11 along the outside, the upper side of assembly plate 11 is arc-shaped guiding position 12, and the assembly is fixed with other parts through the guide hole on assembly plate 11, guiding position 12 is used for making the sideline smooth, namely when assembling equipment, through the arrangement of guiding position 12 and assembly plate 11, the assembled equipment is more compact, and the collision between each other can be alleviated simultaneously.

The technology reduces friction force from damping when the motor rotates, fixes compact internal flat cable and components, and assembles the whole part of the motor, thereby effectively reducing noise.

The present utility model is not limited to the preferred embodiments, but is intended to be limited to the following description, and any modifications, equivalent changes and variations in light of the above-described embodiments will be apparent to those skilled in the art without departing from the scope of the present utility model.

Claims (5)

1. A low noise motor of anti-loosening, antifriction, its characterized in that:

comprises a motor shell consisting of a lower shell assembly (1) and an upper cover assembly (2), and a sound insulation cavity (3) is formed in the motor shell;

an inner rotor assembly (4) is assembled at the inner axis of the lower shell, and an elastic damping piece (5) is filled between the inner rotor assembly (4) and the motor shell;

the upper cover assembly (2) comprises a rear end cover (21) and a rear cover (22), and the rear end cover (21) is assembled between the rear cover (22) and the lower shell assembly (1);

the side wall of the rear end cover (21) is provided with a notch (23), an end cover wiring assembly (6) is assembled in the notch (23), the side wall of the rear cover (22) is provided with a wire guide (24), and the wire guide penetrates to the outside of the motor along the upper direction.

2. A low noise motor of the anti-loosening and anti-friction type as defined in claim 1, wherein: the center of the inner rotor component (4) is provided with a bearing (41) fixed inside the motor shell; the upper end of the bearing (41) is close to the periphery of the rear end cover (21) and the rear cover (22), encoders (42) are arranged at the periphery of the rear end cover (21), and fixing lugs (43) fixed on the rear cover (22) are arranged at two sides of each encoder (42).

3. A low noise motor of the anti-loosening and anti-friction type as defined in claim 1, wherein: four corners of the lower end of the lower shell assembly (1) are provided with assembling plates (11) along the periphery, and arc-shaped guiding positions (12) are arranged above the assembling plates (11).

4. A low noise motor of the anti-loosening and anti-friction type as defined in claim 1, wherein: the elastic damping parts (5) are arranged into a plurality of groups of nitrile rubber strips and are arranged on the inner side of the lower shell in a surrounding way at intervals.

5. A low noise motor of the anti-loosening and anti-friction type as defined in claim 4, wherein: the inner side of the lower shell is provided with a strip hole (13) for assembling the nitrile rubber strip and having a strip shape.