CN221263529U - Split type motor shell that makes an uproar that falls - Google Patents

Abstract

The utility model provides a split noise reduction motor shell, which comprises the following structures: the bottom of the shell is fixedly provided with a radiating hole, and the opening area of the radiating hole facing the inner side of the shell is larger than the opening area of the radiating hole facing the outer side of the shell; the stator assembly comprises an inner shell, conical holes are fixedly formed in the surface of the inner shell at equal intervals, fins are alternately arranged on the inner side of the inner shell and are arranged on the inner side of the inner shell at equal intervals, the stator assembly is provided with the fins arranged between the shell and the inner shell, the fins are alternately arranged to form a noise blocking structure, the design of the conical holes on the inner shell and the special design of the radiating holes on the shell are based on the Helmholtz silencing principle, loss of sound in the process of spreading from the large holes to the small holes is increased, noise reduction of the equipment is completed, and the problem that the size of the equipment is overlarge due to the fact that the existing equipment motor is used for noise reduction and the thick shell is solved.

Description

Split type motor shell that makes an uproar that falls

Technical Field

The utility model mainly relates to the technical field of motor shells, in particular to a split noise reduction motor outer shell.

Background

In the motor noise reduction design for white household appliances, a shell is generally selected to be added, the motor is wrapped, and meanwhile, in order to meet the air cooling and heat dissipation design of the motor, an air channel is required to flow out of the shell.

The inventor provides a split type motor shell that falls, and the shell design of the compound split type structure that its adopted accomplishes the noise reduction of motor, and it is compared with the product that adopts the thickening casing to realize falling the noise at present, when obtaining the same noise reduction performance, need not to use too thick casing to obtain less equipment volume.

Disclosure of utility model

1. Technical problem to be solved by the utility model

The utility model provides a split noise reduction motor outer shell, which solves the problem of overlarge equipment volume caused by the adoption of an excessively thick shell for noise reduction of an existing equipment motor.

2. Technical proposal

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: a split noise reduction motor shell body comprises the following structures:

The casing, the bottom of casing has set firmly the louvre, and the opening area of this louvre towards the casing inboard is greater than its opening area towards the casing outside.

The inner shell is characterized in that conical holes are fixedly formed in the surface of the inner shell at equal intervals, fins are alternately arranged on the inner side of the inner shell, and the fins are arranged on the inner side of the inner shell at equal intervals.

Further, the top of the shell is fixedly provided with a front machine cover, the middle part of the front machine cover is movably connected with a rotating shaft, the bottom of the rotating shaft is movably connected with the middle part of the bottom end of the shell, and the bottom of the rotating shaft is fixedly provided with a heat dissipation fan blade.

Further, the stator assembly shell is fixedly arranged on the inner side of the top of the front machine cover, and the outer side of the stator assembly shell is in contact with the outer side of the fin.

Further, the small opening of the conical hole faces the casing, and the large opening of the conical hole faces the rotating shaft.

Further, an assembly gap between the outer shell and the inner shell is provided with an injecting glue layer.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

The utility model provides a split noise reduction motor outer shell, which is characterized in that fins are arranged between a stator assembly shell and an inner shell, the fins are alternately arranged to form a noise blocking structure, the design of conical holes on the inner shell and the special design of radiating holes on a shell are based on the Helmholtz noise elimination principle, and the loss is increased in the process of sound propagation from a big hole to a small hole, so that the noise reduction treatment of the device is completed;

The utility model provides a split type noise reduction motor outer shell, wherein an injection layer is added between a shell and an inner shell, and the split type composite structure shell provides better noise reduction protection for the equipment;

None of the parts of the device are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a perspective view of the structure of the present utility model;

FIG. 2 is a perspective view, partly in cross-section, of the construction of the case of the present utility model;

FIG. 3 is an enlarged view of the structure of FIG. 2A in accordance with the present utility model;

FIG. 4 is a perspective view, partly in cross-section, of the construction of the sleeve of the present utility model;

FIG. 5 is a perspective view in semi-section of the inner shell structure of the present utility model;

Fig. 6 is an enlarged view of the structure of fig. 5B in accordance with the present utility model.

Reference numerals

A casing-1;

A heat radiation hole-2;

an inner shell-3;

a tapered hole-4;

a fin-5;

Front cover-6;

A main shaft-7;

Radiating fan blades-8;

The stator is fitted with a housing-9.

Detailed Description

In order that the utility model may be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which, however, the utility model may be embodied in many different forms and are not limited to the embodiments described herein, but are instead provided for the purpose of providing a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-6, the utility model provides a split noise reduction motor outer shell, which comprises the following structures:

The casing 1, the bottom of casing 1 has set firmly louvre 2, and the opening area of this louvre 2 towards casing 1 inboard is greater than its opening area towards casing 1 outside.

The inner shell 3, the surface equidistant of inner shell 3 has set firmly taper hole 4, and the inboard of inner shell 3 has arranged fin 5 in turn, and this fin 5 equidistant arranges in the inboard of inner shell 3.

In this embodiment, as shown in fig. 1, 2 and 5, a front cover 6 is fixedly arranged at the top of the casing 1, a rotating shaft is movably connected to the middle of the front cover 6, the bottom of the rotating shaft is movably connected to the middle of the bottom end of the casing 1, a heat dissipation fan blade 8 is fixedly arranged at the bottom of the rotating shaft, and the front cover 6 and the casing 1 form an external first-layer casing of the motor.

In this embodiment, as shown in fig. 1, 2, 3, 5 and 6, a stator assembly housing 9 is fixed on the inner side of the top of the front cover 6, and the outer side of the stator assembly housing 9 abuts against the outer side of the fin 5.

The fins 5 are arranged between the stator assembly shell 9 and the inner shell 3, and the fins 5 are alternately arranged to form a layer of noise blocking structure.

In this embodiment, as shown in fig. 5 and 6, the small mouth of the tapered hole 4 faces the casing 1, and the large mouth of the tapered hole 4 faces the rotation axis.

The design of the conical hole 4 on the inner shell 3 and the special design of the radiating hole 2 on the shell 1 are based on the Helmholtz silencing principle, and the loss in the process of sound propagation from the big hole to the small hole is increased, so that the noise reduction treatment of the device is completed.

In this embodiment, as shown in fig. 3, an assembly gap between the outer shell 1 and the inner shell 3 is provided with an injection molding layer.

The glue injection layer is added between the casing 1 and the inner casing 3, the casing of the split type composite structure provides better noise reduction protection for the equipment, and compared with the product of realizing noise reduction by adopting a thickened casing at present, the equipment has the same noise reduction performance and simultaneously does not need to use an excessively thick casing so as to obtain smaller equipment volume.

The foregoing examples merely illustrate certain embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the concept of the utility model, all of which fall within the scope of protection of the utility model; accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (5)

1. The utility model provides a split type motor shell body of making an uproar that falls which characterized in that: the structure comprises the following steps:

the shell comprises a shell body (1), wherein a radiating hole (2) is fixedly formed in the bottom of the shell body (1), and the opening area of the radiating hole (2) facing the inner side of the shell body (1) is larger than the opening area of the radiating hole facing the outer side of the shell body (1);

The inner shell (3), the surface equidistant taper hole (4) that has set firmly of inner shell (3), the inboard of inner shell (3) has arranged fin (5) in turn, and this fin (5) equidistant arrangement is in the inboard of inner shell (3).

2. The split noise reduction motor housing of claim 1, wherein: the top of cover shell (1) has set firmly preceding protecgulum (6), the middle part swing joint of preceding protecgulum (6) has the pivot, the bottom of this pivot and the bottom middle part swing joint of cover shell (1), the bottom of pivot has set firmly heat dissipation flabellum (8).

3. The split noise reduction motor housing according to claim 2, wherein: the inner side of the top of the front machine cover (6) is fixedly provided with a stator assembly shell (9), and the outer side of the stator assembly shell (9) is in contact with the outer side of the fin (5).

4. The split noise reduction motor housing of claim 1, wherein: the small opening of the conical hole (4) faces the casing (1), and the large opening of the conical hole (4) faces the rotating shaft.

5. The split noise reduction motor housing of claim 1, wherein: the assembly gap between the shell (1) and the inner shell (3) is provided with an injecting glue layer.