CN223206913U - Fan with stable structure - Google Patents

Abstract

The utility model relates to the field of fans and discloses a fan with a stable structure, which comprises a shell, an impeller and a motor, wherein the impeller and the motor are arranged in the shell, a mounting groove matched with the motor is formed in the shell, a plurality of connecting brackets are arranged on the peripheral outer wall of the motor in a protruding mode, a plurality of connecting grooves matched with the connecting brackets and provided with front ends are formed in the inner wall of the mounting groove, the motor is arranged in the mounting groove, and the connecting brackets are correspondingly arranged in the connecting grooves and are locked and fixed through threaded fasteners. The linking bridge is spacing in the spread groove, and linking bridge and spread groove cooperation can bear bigger circumference torsion, increase the stability of motor in circumference. In addition, the shaking force generated in the circumferential direction of the motor due to the rotation of the motor acts on the connecting groove through the connecting bracket, so that the influence on the threaded fastener for fixing can be reduced, and the installation stability of the motor is improved.

Description

Fan with stable structure

Technical Field

The utility model relates to the field of fans, in particular to a fan with a stable structure.

Background

Centrifugal fans are widely used in industrial and domestic fields and mainly consist of impellers, motors and housings. The motor is generally installed by arranging a first connecting hole on the front end face or the rear end face of the motor, arranging a second connecting hole corresponding to the first connecting hole on the casing, and installing bolts to the first connecting hole and the second connecting hole to enable the motor to be fixedly connected in the casing, wherein the centrifugal fan is installed by adopting the motor installation structure as disclosed in the utility model with the patent number of CN 202122022388.3. The motor mounting structure has insufficient structural strength, and can lead to loosening of the structure after long-term use when a large amount of vibration or impact exists in a working environment. The motor mounting structure is loose and can cause the whole vibrations of fan to increase, influences the operating efficiency of equipment, and unstable mounting structure easily causes resonance, leads to the noise increase, influences operational environment and operating personnel's comfort level, and because vibrations and unsteady, the motor need consume more energy to maintain normal operating. Unstable mounting structure of the centrifugal fan motor not only can influence the operation efficiency and service life of equipment, but also can bring a series of problems of noise increase, potential safety hazard, maintenance cost increase and the like. Therefore, the stability of the motor mounting structure must be ensured to ensure the normal, safe operation of the apparatus.

Disclosure of utility model

The utility model mainly aims to provide a fan with a stable structure, and aims to improve the stability of a motor installation structure.

The utility model provides a fan with a stable structure, which comprises a casing, an impeller and a motor, wherein the impeller and the motor are arranged in the casing, a mounting groove matched with the motor is formed in the casing, a plurality of connecting brackets are arranged on the circumferential outer wall of the motor in a protruding mode, a plurality of connecting grooves matched with the connecting brackets are formed in the inner wall of the mounting groove, the motor is arranged in the mounting groove, and the connecting brackets are correspondingly arranged in the connecting grooves and are locked and fixed through threaded fasteners.

Preferably, the connecting brackets are provided with at least two groups, the two groups of connecting brackets are distributed back and forth in the axial direction of the motor, the connecting grooves are provided with at least two groups, the depths of the connecting grooves are respectively matched with the positions of the connecting brackets, and the connecting brackets are fixed on the bottom surface in the connecting grooves.

Preferably, the bottom surfaces in the two groups of connecting grooves are respectively close to the two ends of the mounting groove.

Preferably, the connecting bracket is L-shaped and comprises a first connecting part and a second connecting part which are mutually perpendicular, wherein the first connecting part is fixedly connected with the motor, the second connecting part is fixedly connected in the connecting groove, and the two groups of connecting brackets which are distributed front and back are mutually inverted.

Preferably, the second connecting part is provided with a first connecting hole, the bottom surface in the connecting groove is provided with a second connecting hole, and bolts are installed in the corresponding first connecting hole and second connecting hole, so that the connecting bracket is fixedly connected in the installing groove.

Preferably, the shell comprises an air channel volute and a main shell which are connected relatively, the impeller is positioned in the air channel volute, an air inlet cover is arranged at the air inlet end of the air channel volute, an air outlet assembly is arranged at the air outlet end of the air channel volute, the mounting groove is formed in the main shell, and a heat dissipation cover is arranged on the outer end cover of the mounting groove.

Compared with the prior art, the utility model has the beneficial effects that:

The fan provided by the utility model is characterized in that a mounting groove matched with a motor is formed in a shell of the fan, a plurality of connecting brackets are arranged on the peripheral outer wall of the motor in a protruding mode, a plurality of connecting grooves matched with the connecting brackets and provided with front ends are formed in the inner wall of the mounting groove, the motor is mounted in the mounting groove, and the connecting brackets are correspondingly mounted in the connecting grooves and are locked and fixed through threaded fasteners. The linking bridge is spacing in the spread groove, and linking bridge and spread groove cooperation can bear bigger circumference torsion, increase the stability of motor in circumference. In addition, the shaking force generated in the circumferential direction of the motor due to the rotation of the motor acts on the connecting groove through the connecting bracket, so that the influence on the threaded fastener for fixing can be reduced, and the installation stability of the motor is improved.

Drawings

Fig. 1 is a schematic exploded view of a fan according to the present utility model.

FIG. 2 is an exploded view of the housing of the fan of the present utility model.

FIG. 3 is a schematic view of the main housing of the fan of the present utility model.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals identify like or similar elements or elements having like or similar functionality throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

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 application belongs, the terms used in the description of this application are for the purpose of describing particular embodiments only and are not intended to be limiting of the application, and the terms "comprising" and "having" and any variations thereof in the description of this application and the claims and the above description of the drawings are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1 to 3, an embodiment of the present utility model provides a fan with a stable structure, including a casing, an impeller 4 installed in the casing, and a motor 3. The casing comprises an air duct volute 2 and a main casing 1 which are connected relatively, an impeller 4 is positioned in the air duct volute 2, an air inlet cover 5 is arranged at the air inlet end of the air duct volute 2, and an air outlet assembly 6 is arranged at the air outlet end of the air duct volute 2. The motor 3 is installed in the main housing 1, and a heat dissipation cover 7 is connected to the rear portion of the main housing 1, and the heat dissipation cover 7 faces the main housing 1.

The main casing 1 is provided with a mounting groove 11 for mounting the motor 3. The motor 3 is installed in the installation groove 11, and the output shaft of the motor 3 is connected with the impeller 4.

The peripheral outer wall of the motor 3 is convexly provided with a plurality of connecting brackets 31, the inner wall of the mounting groove 11 is provided with a plurality of connecting grooves 12 matched with the connecting brackets 31, and the connecting brackets 31 are correspondingly arranged in the connecting grooves 12 and are locked and fixed through threaded fasteners.

The connecting bracket 31 is limited in the connecting groove 12, and the connecting bracket 31 and the connecting groove 12 are matched to bear larger circumferential torsion, so that the stability of the motor 3 in the circumferential direction is improved. Further, since the shaking force generated in the circumferential direction of the motor due to the rotation of the motor acts on the connecting groove 12 through the connecting bracket 31, the influence on the screw fastener for fixing can be reduced, and thus the screw fastener is not easily loosened.

Specifically, the connecting brackets 31 are provided with two groups, the first group of connecting brackets 311 and the second group of connecting brackets 312 are distributed in the front and back directions of the motor shaft, the second group of connecting brackets 312 is close to the axial rear end of the motor, and the second group of connecting brackets 311 is close to the axial middle part of the motor.

The connecting grooves 12 are provided with two groups, the depths of the two groups are respectively matched with the positions of the connecting brackets, the first group of connecting grooves 121 are used for installing the first group of connecting brackets 311, the second group of connecting grooves 122 are used for installing the second group of connecting brackets 312, the bottom surface in the first group of connecting grooves 121 is close to the outer end of the installing groove 11, the bottom surface in the second group of connecting grooves 122 is close to the inner end of the installing groove 11, and the two groups of connecting brackets are fixed on the bottom surfaces in the two groups of connecting grooves.

The motor is further enhanced in installation stability through connection and matching of the two groups of connecting brackets and the two groups of connecting grooves which are distributed in the front and the back.

The connecting bracket 31 is L-shaped and comprises a first connecting part and a second connecting part which are mutually perpendicular, wherein the first connecting part is fixedly connected to the motor 3, the second connecting part is fixedly connected to the connecting groove 12, and the two groups of connecting brackets which are distributed in the front and the back are mutually inverted. Specifically, the second connecting portion is provided with a first connecting hole, the bottom surface in the connecting groove 12 is provided with a second connecting hole, and bolts are locked in the corresponding first connecting hole and second connecting hole, so that the connecting bracket 31 is fixedly connected in the mounting groove 12.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model. It will be apparent that the described embodiments are merely some, but not all, embodiments of the utility model. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present utility model or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present utility model, which also falls within the scope of the present utility model.

Claims (6)

1. A fan with a stable structure, comprising a casing, an impeller installed in the casing, and a motor, characterized in that a mounting groove adapted to the motor is provided in the casing, a plurality of connecting brackets are protruding from the circumferential outer wall of the motor, a plurality of connecting grooves adapted to the connecting brackets are provided on the inner wall of the mounting groove, the motor is installed in the mounting groove, and the connecting brackets are correspondingly installed in the connecting grooves and locked and fixed by threaded fasteners. 2. The structurally stable fan according to claim 1 is characterized in that the connecting brackets are provided with at least two groups, and the two groups of connecting brackets are distributed front and back in the axial direction of the motor, and the connecting grooves are provided with at least two groups, and their depths are respectively adapted to the positions of the connecting brackets, and the connecting brackets are fixed on the bottom surface of the connecting grooves. 3 . The fan with a stable structure according to claim 2 , wherein the bottom surfaces of the two groups of connecting grooves are respectively close to both ends of the installation groove. 4. The structurally stable fan according to claim 3 is characterized in that the connecting bracket is L-shaped, including a first connecting portion and a second connecting portion perpendicular to each other, the first connecting portion is connected and fixed to the motor, and the second connecting portion is connected and fixed in the connecting groove; the two groups of connecting brackets distributed front and back are inverted with each other. 5. The structurally stable fan according to claim 4 is characterized in that a first connecting hole is provided on the second connecting portion, a second connecting hole is provided on the bottom surface of the connecting groove, and bolts are installed in the corresponding first connecting hole and second connecting hole to connect and fix the connecting bracket in the installation groove. 6. A structurally stable fan according to any one of claims 1 to 5, characterized in that the casing includes a relatively connected air duct volute and a main outer casing, the impeller is located in the air duct volute, the air inlet end of the air duct volute is installed with an air inlet cover, and the air outlet end of the air duct volute is installed with an air outlet assembly; the mounting groove is arranged on the main outer casing, and the outer end cover of the mounting groove is provided with a heat dissipation cover.