CN213684630U

CN213684630U - Mute axial flow fan

Info

Publication number: CN213684630U
Application number: CN202022794142.3U
Authority: CN
Inventors: 朱锦洪
Original assignee: Foshan City Nanhai Jiuzhou Popula Fan Co Ltd
Current assignee: Foshan City Nanhai Jiuzhou Popula Fan Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-07-13
Anticipated expiration: 2030-11-27

Abstract

A silent axial flow fan comprises a shell, a motor damping fixing component, a motor, an impeller and a movable shutter, wherein the impeller is positioned in the shell, the motor is installed in the middle of a front frame face of the shell through the motor damping fixing component, the motor is used for driving the impeller to rotate, the movable shutter is installed on a rear frame face of the shell, the motor damping fixing component comprises an installation seat and a damping support net, the installation seat is used for installing the motor, the damping support net comprises a plurality of damping pieces and a plurality of connecting pieces, the damping pieces are a plurality of coaxially arranged circular ring pieces or square ring pieces with sequentially increased sizes, the damping pieces are connected through the connecting pieces, one end of each connecting piece is connected with the installation seat, and the other end of each connecting piece is connected with the inner wall of the front frame face of; the installation seat is positioned in the middle of the damping support net, and the output shaft of the motor is coaxially arranged with the axis of the damping piece. The utility model provides a silence axial fan according to above-mentioned content can prevent that the rainwater from pouring into indoorly from the open air to realize noise reduction's effect.

Description

Mute axial flow fan

Technical Field

The utility model relates to an axial fan field especially relates to a silence axial fan.

Background

Conventional fans have not been satisfactory for use. The ventilator industry and the air purification industry both need low noise and convenient installation of the ventilator, and the conventional axial flow ventilator has larger noise when being fully opened; the circular casing is arranged on a wall, a large hole is required to be formed, the fan is arranged and then filled with the filler, and the motor base is welded in the circular casing, so that the fan vibration noise is easy to generate, and the assembly, disassembly and maintenance are inconvenient; the fan is arranged on the wall, and rainwater is easily poured into the room from the fan. The installation trompil is complicated and fan noise is big.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a silence axial fan can prevent that the rainwater from pouring into indoorly from the open air to realize noise reduction's effect.

To achieve the purpose, the utility model adopts the following technical proposal:

a mute axial flow fan comprises a shell, a motor damping fixing component, a motor, an impeller and a movable shutter;

the impeller is positioned in the shell, the motor is mounted in the middle of the front frame surface of the shell through the motor damping fixing component, the motor is used for driving the impeller to rotate, and the movable shutter is mounted on the rear frame surface of the shell;

the motor damping fixing component comprises a mounting seat and a damping supporting net, and the mounting seat is used for mounting the motor; the damping support net comprises a plurality of damping pieces and a plurality of connecting pieces, the damping pieces are a plurality of coaxially arranged circular ring pieces or square ring pieces with sequentially increased sizes, the damping pieces are connected by the connecting pieces, one end of each connecting piece is connected with the mounting seat, and the other end of each connecting piece is connected with the inner wall of the front frame face of the machine shell; the mounting seat is positioned in the middle of the damping support net, and the output shaft of the motor is coaxially arranged with the axis of the damping piece.

Preferably, the casing is a square casing, the shock absorption piece is a square ring piece, the number of the connecting pieces is four, and the four connecting pieces are distributed in a cross shape.

Specifically, the connecting piece is a closed loop piece, the closed loop shape of the closed loop piece is a rounded rectangle, the rounded rectangle is divided into a fixed end and a connecting end by using two ends of the rounded rectangle in the length direction, the fixed end is used for being connected with the inner wall of the front frame face of the casing, the connecting end is connected with the mounting seat, and the fixed end is turned over and arranged and the turning angle is 90 degrees.

Furthermore, the machine shell comprises two L-shaped plates and corner connectors, the number of the L-shaped plates is two, the L-shaped plates are composed of two plates which are vertically connected, a limiting piece extends outwards from one side edge of each plate, and an included angle between the limiting piece and each plate is 90 degrees;

two L type plate encloses and constitutes a square structure, and two the junction of L type plate passes through the angle sign indicating number is connected fixedly.

In some embodiments, the impeller further comprises an air outlet plate, wherein the air outlet plate is provided with an air outlet, and the diameter of the air outlet is larger than that of the impeller;

the air outlet plate is fixedly arranged in the casing, the air outlet plate is positioned between the impeller and the movable shutter, and the distance between the air outlet plate and the impeller is 0-20 mm.

Furthermore, the movable shutter comprises a connecting rod and a rainproof backflow shutter;

the left end and the right end of the rain backflow prevention louver are respectively hinged to the inner wall of the rear frame surface of the shell;

the rain-proof flow reversal louver is at least provided with two, and is multiple, the rain-proof flow reversal louver passes through connecting rod interconnect, the connecting rod is used for a plurality of the synchronous swing of rain-proof flow reversal louver.

Specifically, the anti-rain backflow louver comprises an upper end cover and a lower end cover;

the plurality of the rain backflow preventing shutters are arranged along the length direction of the connecting rod, and when the movable shutters are completely closed, the lower end covers of the rain backflow preventing shutters positioned above are covered with the upper end covers of the rain backflow preventing shutters positioned below;

the included angle beta between the upper end cover and the lower end cover is 150-175 degrees.

In some embodiments, the upper end cover and the lower end cover are respectively provided with a reinforcing rib;

the reinforcing ribs respectively protrude from the outer surface of the upper end cover and the outer surface of the lower end cover, and the reinforcing ribs are respectively used for reinforcing the structures of the upper end cover and the lower end cover.

The utility model has the advantages that:

1. the damping and noise reduction effects of the axial flow fan are realized through the damping piece and the connecting piece;

2. through rain-proof refluence tripe, reach and prevent that the rainwater from outdoor flowing in the inside effect of axial fan.

Drawings

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

FIG. 2 is a schematic structural diagram of one embodiment of the present invention;

fig. 3 is a schematic view of an L-shaped plate according to an embodiment of the present invention;

fig. 4 is a schematic view of a venetian blind according to one embodiment of the invention;

fig. 5 is a schematic structural diagram of β according to an embodiment of the present invention;

wherein: the device comprises a machine shell 1, an L-shaped plate 11, a plate 111, a limiting piece 112, an angle bracket 12, a motor damping fixing component 2, a mounting seat 21, a damping support net 22, a damping piece 221, a connecting piece 222, a motor 3, an impeller 4, a venetian blind 5, a connecting rod 51, a rain backflow preventing louver 52, an upper end cover 521, a lower end cover 522, a reinforcing rib 523 and an air outlet plate 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "inner", "outer end", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1-5, a silent axial flow fan comprises a casing 1, a motor damping fixing component 2, a motor 3, an impeller 4 and a movable shutter 5;

the impeller 4 is positioned in the casing 1, the motor 3 is mounted in the middle of the front frame surface of the casing 1 through the motor damping fixing component 2, the motor 3 is used for driving the impeller 4 to rotate, and the movable shutter 5 is mounted on the rear frame surface of the casing 1;

the motor damping and fixing component 2 comprises a mounting seat 21 and a damping and supporting net 22, wherein the mounting seat 21 is used for mounting the motor 3; the shock absorption support net 22 comprises a plurality of shock absorption pieces 221 and a plurality of connecting pieces 222, the shock absorption pieces 221 are a plurality of coaxially arranged circular ring pieces or square ring pieces with successively larger sizes, the shock absorption pieces 221 are connected by the connecting pieces 222, one end of each connecting piece 222 is connected with the mounting seat 21, and the other end of each connecting piece 222 is connected with the inner wall of the front frame face of the machine shell 1; the mounting seat 21 is located in the middle of the damping support net 22, and the output shaft of the motor 3 is coaxial with the axis of the damping member 221.

When the air conditioner works, the motor 3 is started, the output shaft of the motor 3 rotates to drive the impeller 4 to rotate, the movable shutter 5 is opened, and the impeller 4 rotates to pump indoor air to the outdoor so as to realize the functions of ventilation; the motor 3 is installed in the installation base 21 through the damping support net 22, the vibration generated by the motor 3 is reduced in vibration amplitude through the plurality of damping pieces 221, the connecting piece 222 is used for strengthening and supporting the tension of the motor 3, the damping effect is achieved by offsetting each other, the vibration amplitude of the motor 3 is reduced, and the effect of reducing the working noise of the axial flow fan is achieved.

As shown in fig. 1-2, the casing 1 is a square casing, the shock absorbing members 221 are square ring members, four connecting members 222 are provided, and the four connecting members 222 are distributed in a cross shape.

In the embodiment, compared with the traditional circular casing, the circular casing needs to be provided with a large hole when being installed on a wall, and the fan is installed and then filled with filling materials, so that the circular casing is inconvenient to assemble, disassemble and maintain; and only need direct mount in the wall mouth during the installation of the casing 1 of this application, the four corners of square casing is in the wall mouth inner wall of direct top, and the installation is reliable, easy dismounting, and firm indeformable, and damper 221 sets up to square ring spare, is favorable to offsetting the vibrations of motor 3, the reuse is four connecting piece 222 is the cross distribution, strengthens from four directions damper 221's structural stability.

As shown in fig. 2, the connecting member 222 is a closed loop member, the closed loop of the closed loop member is a rounded rectangle, the rounded rectangle is divided into a fixed end and a connecting end by two ends in the length direction, the fixed end is used for being connected with the inner wall of the front frame surface of the casing 1, the connecting end is connected with the mounting base 21, and the fixed end is turned over and arranged with a turning angle of 90 °.

In this embodiment, when the connecting element 222 is fixed, specifically, a pin is disposed in the rounded rectangle, the connecting end of the connecting element 222 is fixed to the mounting base 21, the fixed end of the connecting element 222 abuts against the inner wall of the front frame surface of the casing 1, and then the pin is used for fixing and positioning, and the fixed end is turned over by 90 degrees to facilitate the mounting of the connecting element 222, so as to achieve the effect of improving the mounting stability of the connecting element 222.

As shown in fig. 2-3, the casing 1 includes two L-shaped plate members 11 and corner connectors 12, the number of the L-shaped plate members 11 is two, the L-shaped plate members 11 are composed of two plate members 111 connected vertically, a limiting member 112 extends outwards from one side of each plate member, and an included angle between the limiting member 112 and the plate member 111 is 90 °;

two L type plate 11 encloses and constitutes a square structure, and two the junction of L type plate 11 passes through angle sign indicating number 12 is connected fixedly.

In this embodiment, the casing 1 is by two the L type plate 11 constitutes, two the L type plate 11 passes through angle sign indicating number 12 is connected fixedly, easy dismounting, dismouting maintenance when being convenient for axial fan internal failure reaches the effect that improves axial fan dismouting efficiency. The two L-shaped plates 11 may be an integrally formed L-shaped member.

One side of the plate 111 extends to the outside to form the limiting part 112, the limiting part 112 is located at an included angle of the plate 111 of 90 degrees, during installation, the axial flow fan is placed in a fan installation hole which is formed in advance, the back of the limiting part 112 abuts against an installation wall surface, the casing 1 is accommodated in the installation hole, the limiting part 112 is beneficial to installation and positioning of the axial flow fan, and the effect of improving the installation efficiency of the axial flow fan is achieved.

As shown in fig. 2, the impeller further comprises an air outlet plate 6, wherein the air outlet plate 6 is provided with an air outlet, and the diameter of the air outlet is larger than that of the impeller 4;

the air outlet plate 6 is fixedly arranged in the casing 1, the air outlet plate 6 is positioned between the impeller 4 and the movable shutter 5, and the distance between the air outlet plate 6 and the impeller 4 is 0-20 mm.

In the embodiment, the test shows that the noise reduction effect is optimal when the distance between the air outlet plate 6 and the impeller 4 is in the range of 0-20 mm.

As shown in fig. 2, said venetian blind 5 comprises a connecting rod 51 and a backflow-preventing louver 52;

the left end and the right end of the rain-proof backflow louver 52 are respectively hinged with the inner wall of the rear frame surface of the machine shell 1;

the number of the rain backflow preventing louvers 52 is at least two, the plurality of the rain backflow preventing louvers 52 are connected with each other through the connecting rods 51, and the connecting rods 51 are used for synchronous swinging of the plurality of the rain backflow preventing louvers 52.

In this embodiment, the number of the rain-proof backflow louvers 52 is four, the four rain-proof backflow louvers 52 are opened and closed in a synchronous swinging manner through the connecting rod 51, when the device is used, the opening and closing degree of the rain-proof backflow louvers 52 is selected according to the outdoor and indoor conditions, for example, when the device is normally used outdoors without rain, the rain-proof backflow louvers 52 are completely opened, the rain-proof backflow louvers 52 swing 90 degrees from a closed state to realize maximum airflow pumping of the axial flow fan, when the device rains outdoors, if the axial flow fan needs to continue working, the rain-proof backflow louvers 52 swing 0 to 90 degrees to prevent rainwater from flowing backwards from the outdoor to the indoor, if the axial flow fan does not need to work, the rain-proof backflow louvers 52 can be completely closed, the function of preventing rainwater from flowing backwards is realized through the opening and closing of the rain-proof backflow louvers, the effects of improving the working efficiency of the axial flow fan and prolonging the service life of the motor 3 are achieved.

The four rain-proof backflow-preventing louvers 52 are arranged to facilitate maintenance and replacement, when one of the rain-proof backflow-preventing louvers 52 is damaged, the other rain-proof backflow-preventing louvers 52 can still have a certain rain-proof function, and the four rain-proof backflow-preventing louvers 52 can control the pumping direction of the air flow, for example, the rain-proof backflow-preventing louvers 52 swing from a closed state by 0-90 degrees to realize downward air flow discharge of the axial flow fan, and the rain-proof backflow-preventing louvers 52 swing from the closed state by 90-180 degrees to realize upward air flow discharge of the axial flow fan, so that the effect of reliability of the rain-proof backflow-.

As shown in fig. 5, the backflow-preventing louver 52 includes an upper cover 521 and a lower cover 522;

the plurality of the anti-rain backflow louvers 52 are arranged along the length direction of the connecting rod 51, and when the movable louver 5 is completely closed, the lower end cover 522 of the anti-rain backflow louver 52 positioned above is covered on the upper end cover 521 of the anti-rain backflow louver 52 positioned below;

the included angle beta between the upper end cover 521 and the lower end cover 522 is 150-175 degrees.

In this embodiment, when rainwater drops to the anti-rain backflow louvers 52, since the lower end cap 522 of the anti-rain backflow louvers 52 located above covers the upper end cap 521 of the anti-rain backflow louvers 52 located below, rainwater can only drop from the anti-rain backflow louvers 52 located above to the anti-rain backflow louvers 52 located below, and cannot flow back into the axial flow fan through the gaps between the two anti-rain backflow louvers 52, thereby achieving the effect of improving the reliability of the movable louvers 5.

As shown in fig. 4, the upper end cap 521 and the lower end cap 522 are respectively provided with a reinforcing rib 523;

the reinforcing ribs 523 respectively protrude from the outer surface of the upper end cover 521 and the outer surface of the lower end cover 522, and the reinforcing ribs 523 are respectively used for reinforcing the structures of the upper end cover 521 and the lower end cover 522.

In this embodiment, the outer surface of the upper cover 521 and the outer surface of the lower cover 522 are both provided with the reinforcing ribs 523, so as to enhance the structural stability of the rain backflow prevention louver 52 and make it difficult to deform.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A silence axial fan which characterized in that: comprises a shell, a motor damping fixing component, a motor, an impeller and a movable shutter;

2. The silent axial flow fan according to claim 1, wherein: the casing is square casing, the damping piece is square ring spare, the connecting piece is equipped with four, four the connecting piece is the cross distribution.

3. The silent axial flow fan according to claim 2, wherein: the connecting piece is a closed loop piece, the closed loop shape of the closed loop piece is a rounded rectangle, the rounded rectangle is divided into a fixed end and a connecting end by two ends in the length direction, the fixed end is used for being connected with the inner wall of the front frame face of the shell, the connecting end is connected with the mounting seat, and the fixed end is turned over and arranged and turns over an angle of 90 degrees.

4. The silent axial flow fan according to claim 1, wherein: the shell comprises two L-shaped plates and corner connectors, the number of the L-shaped plates is two, the L-shaped plates are composed of two plates which are vertically connected, a limiting piece extends outwards from one side edge of each plate, and the included angle between the limiting piece and each plate is 90 degrees;

5. The silent axial flow fan according to claim 1, wherein: the impeller is characterized by also comprising an air outlet plate, wherein the air outlet plate is provided with an air outlet, and the diameter of the air outlet is larger than that of the impeller;

6. The silent axial flow fan according to claim 1, wherein: the movable shutter comprises a connecting rod and a rainproof backflow shutter;

7. The silent axial flow fan according to claim 6, wherein: the anti-rain backflow shutter comprises an upper end cover and a lower end cover;

8. The silent axial flow fan as claimed in claim 7, wherein: the upper end cover and the lower end cover are respectively provided with a reinforcing rib;