CN210178608U

CN210178608U - Centrifugal exhaust fan

Info

Publication number: CN210178608U
Application number: CN201920749004.8U
Authority: CN
Inventors: Qin Li; 李勤
Original assignee: Guangdong Volendam Electric Co Ltd
Current assignee: Guangdong Volendam Electric Co Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-03-24
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses a centrifugal air exhauster, include: motor, setting centrifugation impeller, casing subassembly on the output shaft of motor, casing subassembly includes: the motor is arranged on the outer shell, a cavity with a downward opening is formed in the outer shell, and the centrifugal impeller is positioned in the cavity; the inner shell is installed at the opening of the cavity and comprises a bottom plate and side plates distributed along the edges of the bottom plate, the upper ends of the side plates of the inner shell are connected to the upper wall or the side wall of the cavity when the inner shell is installed in the cavity, so that an air duct distributed by the centrifugal impellers is formed by the inner shell and the upper wall of the cavity or the upper wall and the side wall of the cavity, an air inlet corresponding to the centrifugal impellers is formed in the bottom plate, and an air outlet is formed in the air duct. The air channel corresponding to the centrifugal impeller is formed by matching the outer shell with the inner shell, different inner shells can be selected according to the requirement of the centrifugal impeller, the section and the shape of the air channel are adjusted, the shape of the outer shell does not need to be changed, the air channel can be well matched with the centrifugal impeller, and the air outlet efficiency is improved.

Description

Centrifugal exhaust fan

Technical Field

The utility model relates to an air exhauster field, in particular to centrifugal air exhauster.

Background

The air exhauster includes centrifugal fan and axial fan, axial fan usually needs the axial to air exhaust, the installation height space has certain limitation, centrifugal fan is owing to can the side direction air exhaust, so can be used for the installation position installation that the height space is less, centrifugal fan usually need dispose centrifugal impeller and with the wind channel that centrifugal impeller matches can better completion air supply, traditional centrifugal fan is independent configuration wind channel casing in the fan shell, assurance wind channel that can be better like this matches with centrifugal impeller, but manufacturing cost is high, the structure is complicated, it directly forms the wind channel to set up the inside wall that the bottom plate directly passes through the fan shell certainly also on the fan shell, but the wind channel that forms through this mode, the wind channel size is restricted by the fan shell, make centrifugal fan's centrifugal impeller and wind channel be difficult to better matching, influence the efficiency of air-out.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least, provide a centrifugal air exhauster, guarantee wind channel that can be better and centrifugal impeller's matching nature improves air-out efficiency.

The utility model provides a technical scheme that its technical problem adopted is:

a centrifugal blower comprising: motor, setting centrifugation impeller on the output shaft of motor, and housing assembly, housing assembly includes:

the motor is arranged on the shell, a cavity with a downward opening is formed in the shell, and the centrifugal impeller is located in the cavity;

the inner shell is installed at the opening of the cavity and comprises a bottom plate and side plates distributed along the edge of the bottom plate, the upper end of each side plate of the inner shell is connected to the upper wall or the side wall of the cavity when the inner shell is installed in the cavity, so that an air duct distributed by the centrifugal impellers is formed by the inner shell and the upper wall of the cavity or the upper wall and the side wall of the cavity, an air inlet corresponding to the centrifugal impellers is formed in the bottom plate, and air outlets are formed in the air duct.

One of the above technical solutions has at least one of the following advantages or beneficial effects: the air channel corresponding to the centrifugal impeller is formed by matching the outer shell with the inner shell, different inner shells can be selected according to the requirement of the centrifugal impeller, the section and the shape of the air channel are adjusted, the shape of the outer shell does not need to be changed, the air channel can be well matched with the centrifugal impeller, and the air outlet efficiency is improved.

Preferably, the upper end of the side plate is connected to the upper wall of the cavity through a buckling structure so as to facilitate the disassembly and assembly of the inner shell and the outer shell.

Preferably, the air outlet is rotatably provided with an air outlet baffle to prevent mosquitoes or dust from entering the fan when the fan is not started.

Preferably, the lower end of the shell is provided with a face frame, so that the decorative effect of the fan is improved.

Preferably, the face frame middle part is provided with the vent, is provided with middle part panel components in this vent department, have the clearance that can supply the air to pass through between middle part panel components and the vent, shelter from the vent through disposing middle part panel components, further improve the effect of decorating.

Preferably, middle part panel components is through at least a set of interference fit installation mechanism fixed mounting on a frame, interference fit installation mechanism includes the erection column and the elastic component that corresponds with the erection column, be provided with on the elastic component can with erection column interference fit's mounting hole, the erection column with the two one of them setting of elastic component is on a frame, and another setting is at middle part panel components, through interference fit installation mechanism realizes middle part panel components's quick assembly disassembly, and conveniently changes middle part panel components to conveniently demolish middle part panel components and clean inside the fan.

Preferably, the middle panel component is an LED flat lamp to achieve the effect of decorative lighting.

Preferably, the housing assembly is provided with a plurality of mounting fasteners for fixing the housing assembly to a ceiling so as to mount the fan to the ceiling.

Preferably, the lower end of the shell is provided with a skirt edge, the mounting fastener is rotatably arranged at the skirt edge through a rotating shaft, and a gap corresponding to the thickness of the ceiling is formed between the mounting fastener and the skirt edge so as to clamp a plate of the ceiling and fix the fan.

Preferably, the lower end of the rotating shaft penetrates through the skirt edge, and a poking piece is arranged at the lower end of the rotating shaft, so that the fastener is rotatably installed below the fan to the installation position, and the installation is convenient.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of an embodiment of the present invention;

fig. 4 is a second cross-sectional view of the embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, fig. 1 to 4 are schematic structural views of an embodiment of the present invention, and a centrifugal blower includes: motor 1, set up centrifugal impeller 2 on motor 1's output shaft, and housing assembly, housing assembly includes: the centrifugal impeller comprises an outer shell 3 and an inner shell 4, wherein the motor 1 is arranged on the outer shell 3, a cavity with a downward opening is formed in the outer shell 3, and the centrifugal impeller 2 is positioned in the cavity; inner shell 4 is installed the opening part of cavity, it includes a bottom plate 41 and follows bottom plate 41 edge distribution's curb plate 42, inner shell 4 is installed during the cavity, and its curb plate 42 upper end is connected to the upper wall or the lateral wall of cavity for inner shell 4 forms the wind channel 5 that centrifugal impeller 2 distributes with the upper wall of cavity or the upper wall and the lateral wall of cavity, be provided with the air intake 51 that corresponds with centrifugal impeller 2 on the bottom plate 41, be provided with air outlet 52 on the wind channel 5, the utility model discloses specific embodiment forms the wind channel that corresponds with centrifugal impeller 2 through the cooperation of shell 3 with inner shell 4, can select different inner shell 4 according to centrifugal impeller 2's needs, adjusts the cross-section and the shape in wind channel, need not to change the shape of shell, can make the wind channel can with the better matching of centrifugal impeller 2, improve the efficiency of air-out.

In the embodiment, because the shell structure is not required to be changed when the air duct is adjusted, the influence on other accessories or installation mechanisms of the shell structure caused by changing the air duct can be avoided, namely, the use requirements of different centrifugal fans can be met without redesigning the shell or remanufacturing the shell, and the production cost is reduced; in addition, the air duct is formed through the structure, so that the structure of the shell is simplified, the production cost is reduced, and the maintenance is convenient.

As shown in fig. 3, in the present embodiment, the upper end of the side plate 42 is connected to the upper wall of the cavity, the air duct is formed by the bottom plate 41 and the side plate 42 of the inner casing 4 and the upper wall of the cavity, and the air duct can be adjusted by adjusting the bottom plate 41 and the side plate 42, so that the air duct can be matched with the centrifugal impeller.

Preferably, as shown in fig. 1 and 2, the upper end of the side plate 42 is connected to the upper wall of the cavity through a snap structure 421, so that the assembly of the outer shell 3 and the inner shell 4 can be completed, and the disassembly and assembly are convenient, and of course, in the implementation process, the outer shell 3 and the inner shell 4 can also be connected through screws, which is not described in detail herein.

Preferably, as shown in fig. 1 and 2, the air outlet 52 is rotatably provided with an air outlet baffle 521, when the wind speed or wind pressure reaches a certain value, the air outlet baffle 521 can be blown away to realize air exhaust, and when the fan is not opened, the air outlet baffle 521 can utilize the air outlet 52 of the dead weight air-entraining bar to prevent mosquitoes or dust from entering the fan.

Preferably, as shown in the figure, the lower end of the outer shell 3 is provided with a face frame 6 to improve the decoration effect when the fan is installed.

Preferably, as shown in the figure, the middle of the face frame 6 is provided with a vent 61, the vent 61 is provided with a middle panel assembly 7, a gap 61a for air to pass through is formed between the middle panel assembly 7 and the vent 61, normal air suction is ensured, the vent 61 is shielded by configuring the middle panel assembly 7, and the decorative effect is further improved.

Preferably, as shown in fig. 2 and 3, middle part panel assembly 7 is installed on face frame 6 through at least a set of interference fit installation mechanism fixed mounting, interference fit installation mechanism includes erection column 71 and the elastic component 62 that corresponds with erection column 71, be provided with on the elastic component 62 can with erection column 71 interference fit's mounting hole, erection column 71 with one of the two of elastic component 62 sets up on face frame 6, and another setting is at middle part panel assembly 7, can realize the quick assembly disassembly and disassembly of middle part panel assembly 7 through foretell interference fit installation mechanism, conveniently changes different middle part panel assembly according to the decoration needs of difference, and when needs are clean, dismantlement middle part panel assembly 7 that can be quick, conveniently cleans the fan is inside.

Preferably, in this embodiment, the middle panel assembly 7 is an LED flat lamp, so as to achieve the effect of decoration and illumination. Of course, in the implementation, the middle panel assembly 7 may also be a color plate or a decorative pattern plate, and will not be described in detail herein.

Preferably, as shown in the figure, the housing assembly is provided with a plurality of mounting fasteners 8 for fixing the housing assembly to the ceiling so as to facilitate mounting the fan on the ceiling.

Preferably, as shown in fig. 1 to 4, the skirt 31 is provided at the lower end of the housing 3, the mounting fastener 8 is rotatably provided at the skirt 31 through a rotating shaft 81, and a gap corresponding to the thickness of the ceiling is provided between the mounting fastener 8 and the skirt 31 to clamp the panels of the ceiling, so as to fix the fan.

Preferably, as shown in fig. 2, the lower end of the rotating shaft 81 penetrates through the skirt 31, a poking piece 82 is arranged at the lower end of the rotating shaft 81, and after the fan is installed in a ceiling, the poking piece 82 can be rotated below the fan to drive the installation fastener 8 to rotate to the installation position, so that the fan is conveniently installed.

Of course, in the implementation, the mounting fastener 8 may also be an elastic buckle, which is mounted on a hole of the ceiling through the elastic buckle, and will not be described in detail herein.

It is readily understood by those skilled in the art that the above-described preferred modes can be freely combined and superimposed without conflict.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A centrifugal blower, comprising: motor (1), set up centrifugal impeller (2) on the output shaft of motor (1) and housing assembly, housing assembly includes:

the motor (1) is arranged on the shell (3), a cavity with a downward opening is formed in the shell (3), and the centrifugal impeller (2) is located in the cavity;

inner shell (4), inner shell (4) are installed the opening part of cavity, and it includes a bottom plate (41) and along bottom plate (41) edge distribution's curb plate (42), inner shell (4) are installed during the cavity, its curb plate (42) upper end is connected to the upper wall or the lateral wall of cavity for inner shell (4) and the upper wall of cavity or the upper wall and the lateral wall of cavity form wind channel (5) that centrifugal impeller (2) distribute, be provided with air intake (51) that correspond with centrifugal impeller (2) on bottom plate (41), be provided with air outlet (52) on wind channel (5).

2. The centrifugal blower of claim 1,

the upper end of the side plate (42) is connected to the upper wall of the cavity through a buckling structure (421).

3. The centrifugal blower of claim 1,

an air outlet baffle (521) is rotatably arranged at the air outlet (52).

4. The centrifugal blower of claim 1,

the lower end of the shell (3) is provided with a face frame (6).

5. A centrifugal blower according to claim 4,

the air conditioner is characterized in that a ventilation opening (61) is formed in the middle of the face frame (6), a middle panel assembly (7) is arranged at the ventilation opening (61), and a gap (61a) through which air can pass is formed between the middle panel assembly (7) and the ventilation opening (61).

6. A centrifugal blower according to claim 5,

middle part panel components (7) are through at least a set of interference fit installation mechanism fixed mounting on face frame (6), interference fit installation mechanism includes erection column (71) and elastic component (62) that correspond with erection column (71), be provided with on elastic component (62) can with erection column (71) interference fit's mounting hole, erection column (71) with one of the two of elastic component (62) sets up on face frame (6), and another setting is at middle part panel components (7).

7. A centrifugal blower according to claim 5 or 6,

the middle panel component (7) is an LED panel lamp.

8. The centrifugal blower of claim 1,

the shell assembly is provided with a plurality of mounting fasteners (8) for fixing the shell assembly to a ceiling.

9. The centrifugal blower of claim 8,

the lower end of the shell (3) is provided with a skirt edge (31), the mounting fastener (8) is rotatably arranged at the skirt edge (31) through a rotating shaft (81), and a gap corresponding to the thickness of a ceiling is formed between the mounting fastener (8) and the skirt edge (31).

10. The centrifugal blower of claim 9,

the lower end of the rotating shaft (81) penetrates through the skirt edge (31), and a poking sheet (82) is arranged on the lower end of the rotating shaft (81).