CN219204256U

CN219204256U - Shock-absorbing structure of motor shaft of range hood and range hood

Info

Publication number: CN219204256U
Application number: CN202223527842.1U
Authority: CN
Inventors: 王杰; 桑鹏飞; 许平建
Original assignee: Whirlpool China Co Ltd
Current assignee: Whirlpool China Co Ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-06-16
Anticipated expiration: 2032-12-23

Abstract

The utility model provides a motor shaft damping structure of a range hood, which comprises a volute, a front bracket and a rear bracket, wherein the front bracket and the rear bracket extend axially from the side walls of a front air inlet and a rear air inlet of the volute to the inner cavity of the front bracket and the rear bracket respectively; and one end of the motor shaft is fixed on the front support, and the other end of the motor shaft is arranged on the rear support through an axial damping component, wherein the axial damping component comprises a mounting plate sleeved at the shaft end of the motor shaft and a damping ring arranged between the mounting plate and the rear support. In the utility model, one end of the motor shaft is fixed through the front bracket, and the other end of the motor shaft is connected with the rear bracket through the axial damping component, and the other end of the motor shaft is not rigidly connected with the rear bracket, but the stability and damping are realized by utilizing the mounting plate and the damping ring arranged between the mounting plate and the rear bracket, so that the effective damping and stability of two output ends of the motor built-in the impeller can be realized.

Description

Shock-absorbing structure of motor shaft of range hood and range hood

Technical Field

The utility model relates to the technical field of kitchen household appliances, in particular to a motor shaft damping structure of a range hood and the range hood.

Background

The prior range hood structure generally comprises a range hood shell, an air duct component, a volute, an impeller, a motor and other parts, so that the volume of the motor occupies a normal air duct when the impeller works, the air quantity of the motor is reduced, the volume of the motor is reduced to occupy the air duct when the impeller works normally, the motor is arranged into a flat structure on one hand, the motor is arranged in an inner cavity of the impeller on the other hand, and particularly, two sides of the inner cavity of the motor output shaft are extended, which is different from a single output end of the motor.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a structure capable of effectively damping and stabilizing a motor shaft arranged in an inner cavity of an impeller, and a range hood comprising the structure, and the specific technical scheme is as follows:

the utility model provides a lampblack absorber motor shaft shock-absorbing structure, includes the spiral case, still includes:

the front support and the rear support extend axially from the side walls of the front air inlet and the rear air inlet of the volute to the inner cavity of the volute respectively; and

and one end of the motor shaft is fixed on the front support, and the other end of the motor shaft is arranged on the rear support through an axial damping component, wherein the axial damping component comprises a mounting plate sleeved at the shaft end of the motor shaft and a damping ring arranged between the mounting plate and the rear support.

Preferably, the front support comprises a first wind scooper, a first fixing rod and a first fixing disc, the first wind scooper is fixedly arranged at an air inlet at the front side of the volute, the first fixing rods are multiple and extend from the wind scooper to the axis of the volute, the first fixing disc is arranged at one end, far away from the first wind scooper, of the first fixing rod, and the motor shaft is fixed on the first fixing disc through a nut.

Preferably, the rear support comprises a second wind scooper, a second fixing rod and a second fixing disc, the second wind scooper and the air inlet at the rear side of the volute are integrally formed, the second fixing rods are multiple and extend from the axis of the volute to the wind scooper, and the second fixing disc is arranged at one end, far away from the second wind scooper, of the second fixing rod.

Preferably, the mounting plate is provided with a central hole matched with the motor shaft, and one end of the motor shaft penetrating through the central hole is fixedly connected with the mounting plate through a nut.

Preferably, the second fixing plate is provided with a plurality of embedded holes along the circumferential direction of the second fixing plate, the damping ring is clamped on the embedded holes, one side of the damping ring is in contact with the mounting plate, and the other side of the damping ring is provided with a limiting screw which sequentially penetrates through the damping ring, the second fixing plate and the mounting plate.

Preferably, the damping ring is provided with an annular groove which is matched with the fixed disc.

Preferably, a notch which is communicated with the embedding hole and used for embedding the damping ring is formed in the second fixed disc.

A range hood comprises the motor shaft damping structure of the range hood.

According to the technical scheme, the utility model has the following beneficial effects: in the utility model, one end of the motor shaft is fixed through the front bracket, and the other end of the motor shaft is connected with the rear bracket through the axial damping component, and the other end of the motor shaft is not rigidly connected with the rear bracket, but the stability and damping are realized by utilizing the mounting plate and the damping ring arranged between the mounting plate and the rear bracket, so that the effective damping and stability of two output ends of the motor built-in the impeller can be realized.

Drawings

FIG. 1 is a schematic diagram of a connection structure between a shock absorbing structure and a volute casing provided by the utility model;

FIG. 2 is a schematic diagram of the portion A in FIG. 1;

FIG. 3 is a perspective view of FIG. 1;

FIG. 4 is a schematic view of the volute and its upper rear bracket of the present utility model;

FIG. 5 is a schematic view of the volute and its upper front support of the present utility model;

FIG. 6 is a schematic structural view of a front bracket;

FIG. 7 is a schematic structural view of a mounting plate;

fig. 8 is a schematic structural view of a damper ring.

In the figure: 10. a volute; 20. a front bracket; 210. a first wind scooper; 220. a first fixed rod; 230. a first fixed disc; 30. a rear bracket; 310. a second wind scooper; 320. a second fixing rod; 330. a second fixed disc; 331. an insertion hole; 40. a motor shaft; 410. a nut; 510. a mounting plate; 511. a central bore; 520. a damping ring; 521. an annular groove; 530. and (5) limiting screws.

Detailed Description

The present utility model will be described in detail below with reference to the drawings and detailed embodiments, and before the technical solutions of the embodiments of the present utility model are described in detail, the terms and terms involved will be explained, and in the present specification, the components with the same names or the same reference numerals represent similar or identical structures, and are only limited for illustrative purposes.

Referring to fig. 1 and 2, a motor shaft damping structure of a range hood comprises a volute 10, a front bracket 20, a rear bracket 30 and a motor shaft 40, wherein the front bracket 20 and the rear bracket 30 are symmetrically arranged and axially extend from the side wall of a front air inlet and a rear air inlet of the volute 10 to the inner cavity of the rear bracket, the rear bracket 30 and the volute 10 are integrally formed, so that the integration level of the volute 10 can be improved, one end of the motor shaft 40 is fixed on the front bracket 20, the other end of the motor shaft 40 is arranged on the rear bracket 30 and is connected with the rear bracket 30 through an axial damping component, the axial damping component comprises a mounting plate 510 sleeved at the shaft end of the motor shaft 40 and a damping ring 520 arranged between the mounting plate 510 and the rear bracket 30, so that when the motor and an impeller rotate along the motor shaft 40, one end of the motor shaft 40 is fixed through the front bracket 20, and the other end of the motor shaft 40 is connected with the rear bracket 30 through the axial damping component, and the other end of the motor shaft 40 is in non-rigid connection with the rear bracket 30, so that the motor shaft is stably and stably arranged at the output ends of the motor are arranged inside the impeller.

Referring to fig. 5 and 6, as a preferred technical solution of the present utility model, the front bracket 20 includes a first air guiding cover 210, a first fixing rod 220 and a first fixing plate 230, the first air guiding cover 210 is fixedly arranged at an air inlet at the front side of the volute 10, the first fixing rod 220 is plural, extends from the first air guiding cover 210 to the axis of the volute 10, the first fixing plate 230 is arranged at one end of the first fixing rod 220 away from the first air guiding cover 210, and the first fixing plate 230 is perpendicular to the axial direction of the motor shaft 40, further, in order to fix the motor shaft 40, one end of the motor shaft 40 is fixed on the first fixing plate 230 through a nut 410, it should be noted that the first air guiding cover 210 and the volute 10 of the present embodiment are fixedly connected through fasteners such as screws.

Referring to fig. 3 and 4, the rear bracket 30 includes a second air guide housing 310 fixedly connected to the air inlet at the rear side of the volute 10, a second fixing rod 320 and a second fixing plate 330, the second fixing rod 320 is plural and extends from the second air guide housing 310 to the axis of the volute 10, the second fixing plate 330 is disposed at one end of the second fixing rod 320 far away from the second air guide housing 310, and the second fixing plate 330 is disposed perpendicular to the axial direction of the motor shaft 40, so that one end of the motor shaft 40 is fixed by the front bracket 20, the other end passes through the rear bracket 30 and is connected with the rear bracket 30 by the mounting plate 510 and the damping ring 520, and the axial vibration of the motor shaft 40 is absorbed by the damping ring 520 to achieve the damping effect.

Referring further to fig. 7, in order to facilitate the coupling of the mounting plate 510 and the motor shaft 40, a central hole 511 is formed in the mounting plate 510 to match the motor shaft 40, and a nut 410 for fixing the mounting plate 510 is further provided at one end of the motor shaft 40 passing through the central hole 511, specifically, the nut 410 is screw-coupled with the end of the motor shaft 40, and the mounting plate 510 is fixed to the motor shaft 40 by using the nut 410.

Specifically, the second fixing plate 330 is provided with a plurality of embedding holes 331 along the circumferential direction thereof, and the damping ring 520 is clamped in the embedding holes 331, so that one side of the damping ring 520 is in contact with the mounting plate 510, the other side of the damping ring is arranged at the outer side of the second fixing plate 330, and in order to fix the damping ring 520 with the second fixing plate 330 and the mounting plate 510, a limiting screw 530 penetrating through the damping ring 520, the second fixing plate 330 and the mounting plate 510 in sequence is further arranged, and the damping ring 520 can be stably arranged between the rear bracket 30 and the mounting plate 510, so that the damping ring 520 can conveniently exert a damping effect.

Further referring to fig. 8, in order to facilitate the engagement of the damper ring 520 with the second fixing plate 330, an annular groove 521 is formed in the damper ring 520, so that, in use, the damper ring 520 is connected with the second fixing plate 330 through the annular groove 521, and in order to facilitate the insertion of the damper ring 520 into the second fixing plate 330, a notch communicated with the insertion hole 331 is formed in the second fixing plate 330, and in use, the damper ring 520 enters the second fixing plate 330 through the notch.

The utility model also provides a range hood, which comprises the shaft damping structure of the range hood motor, wherein when the range hood is used, one end of the motor shaft 40 is fixed through the front bracket 20, the other end of the motor shaft is fixed with the rear bracket 30 through the mounting plate 510, and the damping rings 520 are arranged between the mounting plate 510 and the rear bracket 30, so that when the motor shaft 40 rotates, the axial damping and stability of the motor shaft 40 are realized by utilizing the combination of the mounting plate 510 and the damping rings 520.

The above-described embodiments are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the present utility model.

Claims

1. Motor shaft damping structure of a range hood, comprising a volute (10), characterized in that it further comprises:

the front support (20) and the rear support (30) extend axially from the side walls of the front air inlet and the rear air inlet of the volute (10) to the inner cavity of the volute respectively; and

the motor comprises a motor shaft (40), wherein one end of the motor shaft (40) is fixed on a front support (20), and the other end of the motor shaft is arranged on a rear support (30) through an axial damping component, and the axial damping component comprises a mounting plate (510) sleeved at the shaft end of the motor shaft (40) and a damping ring (520) arranged between the mounting plate (510) and the rear support (30).

2. The motor shaft damping structure of a range hood according to claim 1, wherein the front bracket (20) comprises a first wind guiding cover (210), a first fixing rod (220) and a first fixing disc (230), the first wind guiding cover (210) is fixedly arranged at a front side air inlet of the volute (10), the first fixing rods (220) are multiple and extend from the first wind guiding cover (210) to the axis of the volute (10), the first fixing disc (230) is arranged at one end, away from the first wind guiding cover (210), of the first fixing rod (220), and the motor shaft (40) is fixed on the first fixing disc (230) through a nut (410).

3. The motor shaft damping structure of a range hood according to claim 2, wherein the rear bracket (30) comprises a second air guide cover (310), a second fixing rod (320) and a second fixing disc (330), the second air guide cover (310) and the air inlet on the rear side of the volute (10) are integrally formed, the second fixing rods (320) are multiple and extend from the second air guide cover (310) to the axis of the volute (10), and the second fixing disc (330) is arranged at one end, far away from the second air guide cover (310), of the second fixing rod (320).

4. A shock absorbing structure of a motor shaft of a range hood according to claim 3, wherein the mounting plate (510) is provided with a central hole (511) matched with the motor shaft (40), and one end of the motor shaft (40) penetrating through the central hole (511) is fixedly connected with the mounting plate (510) through a nut (410).

5. The motor shaft damping structure of a range hood according to claim 4, wherein the second fixing plate (330) is provided with a plurality of insertion holes (331) along the circumferential direction thereof, the damping ring (520) is clamped on the insertion holes (331), one side of the damping ring (520) is contacted with the mounting plate (510), and the other side of the damping ring is provided with a limit screw (530) penetrating through the damping ring (520), the second fixing plate (330) and the mounting plate (510) in sequence.

6. The motor shaft damping structure of the range hood according to claim 5, wherein the damping ring (520) is provided with an annular groove (521) matched with the second fixed disk (330).

7. The motor shaft damping structure of the range hood according to claim 5, wherein the second fixed disk (330) is provided with a notch which is communicated with the embedding hole (331) and used for embedding the damping ring (520).

8. A range hood comprising a range hood motor shaft shock absorbing structure according to any one of claims 1 to 7.