CN218266402U - Double-outlet centrifugal fan - Google Patents
Double-outlet centrifugal fan Download PDFInfo
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- CN218266402U CN218266402U CN202221356393.6U CN202221356393U CN218266402U CN 218266402 U CN218266402 U CN 218266402U CN 202221356393 U CN202221356393 U CN 202221356393U CN 218266402 U CN218266402 U CN 218266402U
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- impeller
- centrifugal fan
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Abstract
The utility model relates to the technical field of centrifugal fans, in particular to a double-outlet centrifugal fan, which comprises a volute, wherein a blade wheel component is arranged in the volute; the volute comprises a front shell and a rear shell, an air inlet is formed in the middle of the front shell, a rotating shaft is fixedly connected to the middle of the front side wall of the rear shell, and air outlets are formed in the lower end of the left side face and the upper end of the right side face of the volute; the impeller assembly comprises an impeller and an impeller motor, the impeller comprises a rear disc, a front disc and blades positioned between the rear disc and the front disc, and the middle of the rear disc is provided with a mounting cavity in a forward protruding mode. The utility model uses the impeller motor to work, and the rotor of the impeller motor drives the impeller to rotate, so that the air is sucked into the volute from the air inlet through the impeller and then blown out from the air outlet; set up two sets of air outlets and carry out two-sided air-out, greatly increased this two export centrifugal fan's air output, effectively reduced this two export centrifugal fan's inside vortex loss in order to reduce this two export centrifugal fan's noise.
Description
Technical Field
The utility model relates to a centrifugal fan technical field specifically is a two export centrifugal fan.
Background
A general centrifugal fan is provided with only one air outlet and is also called a single-outlet centrifugal fan, when wind is blown out by the fan, nearly one fourth of the wind does not leave through the air outlet, but does idle work inside the volute, meanwhile, the noise of the body can be increased after the wind inside the volute generates turbulence in an air duct, and therefore a client cannot meet the actual use requirement.
The patent of publication No. CN203796617U discloses a centrifugal fan, centrifugal fan includes the impeller is provided with impeller front bezel, impeller back dish and blade, and the blade is installed between impeller front bezel and impeller back dish, and the impeller mounting is in the casing, and the induction port links to each other with the impeller front bezel, the inside passageway of airing exhaust that is provided with of casing, exhaust duct's bottom is provided with the air exit, and its technical scheme main points are provided with wind-force buffering curved surface on the wall of passageway of airing exhaust, are provided with the filter screen on the vent, the practical wear-resisting material of blade and outward flange of impeller thicken gradually.
Above-mentioned centrifugal fan sets up an air exit for the discharge amount of the wind that enters into in the casing is less, and wind does useless work in the casing, and will increase the body noise after the vortex appears in the wind channel to the inside wind of casing.
To this end, we propose a double outlet centrifugal fan.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two export centrifugal fan to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme: a double-outlet centrifugal fan comprises a volute, wherein an impeller assembly is installed in the volute;
the volute comprises a front shell and a rear shell, an air inlet is formed in the middle of the front shell, a rotating shaft is fixedly connected to the middle of the front side wall of the rear shell, and air outlets are formed in the lower end of the left side surface and the upper end of the right side surface of the volute;
the impeller assembly comprises an impeller and an impeller motor, the impeller comprises a rear disc, a front disc and blades positioned between the rear disc and the front disc, and the middle part of the rear disc is provided with a mounting cavity in a forward protruding mode;
the impeller motor is installed in the rotating shaft outer side and located in the installation cavity, a rotor of the impeller motor is fixedly connected with the inner wall of the installation cavity, and a stator of the impeller motor is fixedly connected with the rotating shaft.
Two groups of mounting lugs are fixedly connected to the upper side wall and the lower side wall of the volute. Through the setting of installation ear, be convenient for install this two export centrifugal fan.
The front shell and the rear shell are connected through a buckle in a clamping mode. So that the front shell and the rear shell are convenient to mount and dismount.
The impeller corresponds to the air inlet. The impeller rotates to lead wind into the volute from the wind inlet.
And the rear disk, the blades and the front disk are connected by welding. The impeller has higher structural strength, so that the service life of the impeller is prolonged.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model uses the impeller motor to work, and the rotor of the impeller motor drives the impeller to rotate, so that the air is sucked into the volute from the air inlet through the impeller and then blown out from the air outlet;
2. the utility model discloses set up two sets of air outlets and carry out two-sided air-out, greatly increased this two export centrifugal fan's air output, effectively reduced this two export centrifugal fan's inside vortex loss in order to reduce this two export centrifugal fan's noise, relative single air inlet product, amount of wind and efficiency are higher than single air inlet more than 10%, and this two export centrifugal fan noise reduces more than 3 Dba.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the present invention;
fig. 3 is a schematic structural view of the impeller and the impeller motor of the present invention;
fig. 4 is a schematic view of the lateral cross-section structure of the volute of the present invention.
In the figure: 1. a front housing; 2. a rear housing; 3. an air inlet; 4. a rotating shaft; 5. an air outlet; 6. an impeller; 601. a rear disc; 602. a front plate; 603. a blade; 7. an impeller motor; 8. mounting ears; 9. and (5) buckling.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a two export centrifugal fan, includes the spiral case, the equal fixedly connected with two sets of installation ears 8 of both sides wall about the spiral case, through the setting of installation ear 8, be convenient for install this two export centrifugal fan, install the impeller subassembly in the spiral case.
The spiral case includes procapsid 1 and back casing 2, connect through buckle 9 joint between procapsid 1 and the back casing 2 for be convenient for install and dismantle between procapsid 1 and the back casing 2, procapsid 1 middle part is equipped with air intake 3, and air intake 3 is used for introducing the spiral case with wind in, 2 preceding lateral wall middle part fixedly connected with pivots 4 of back casing, spiral case left surface lower extreme and right flank upper end all are equipped with air outlet 5, and air outlet 5 is used for blowing off wind, sets up two sets of air outlets 5 and carries out two-sided air-out, greatly increased this two export centrifugal fan's air output, effectively reduce this two export centrifugal fan's inside vortex loss in order to reduce this two export centrifugal fan's of export noise, relative single air inlet product, amount of wind and efficiency are higher than single air inlet more than 10%, this two export centrifugal fan noise reduction more than 3 Dba.
The impeller assembly comprises an impeller 6 and an impeller motor 7, wherein the impeller 6 corresponds to the air inlet 3, the impeller 6 comprises a rear disc 601, a front disc 602 and blades 603 positioned between the rear disc 601 and the front disc 602, the rear disc 601, the blades 603 and the front disc 602 are connected in a welding manner, so that the impeller 6 is higher in structural strength, the service life of the impeller 6 is prolonged, and the middle part of the rear disc 601 is provided with a mounting cavity in a forward protruding manner.
Specifically, when the air-conditioning volute is used, the impeller motor 7 works, and the rotor of the impeller motor 7 drives the impeller 6 to rotate, so that air is sucked into the volute from the air inlet 3 through the impeller 6 and then is blown out from the air outlet 5; set up two sets of air outlets 5 and carry out two-sided air-out, greatly increased this two export centrifugal fan's air output, effectively reduced this two export centrifugal fan's inside vortex loss in order to reduce this two export centrifugal fan's noise, relative single air inlet product, amount of wind and efficiency are higher than single air inlet more than 10%, this two export centrifugal fan noise reduction more than 3 Dba.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a two export centrifugal fan, includes the spiral case, its characterized in that: an impeller component is arranged in the volute;
the volute comprises a front shell (1) and a rear shell (2), an air inlet (3) is formed in the middle of the front shell (1), a rotating shaft (4) is fixedly connected to the middle of the front side wall of the rear shell (2), and air outlets (5) are formed in the lower end of the left side face and the upper end of the right side face of the volute;
the impeller assembly comprises an impeller (6) and an impeller motor (7), the impeller (6) comprises a rear disc (601), a front disc (602) and blades (603) positioned between the rear disc (601) and the front disc (602), and the middle part of the rear disc (601) is provided with a mounting cavity in a protruding mode forwards;
impeller motor (7) install in pivot (4) outside and be located the installation cavity, just impeller motor (7)'s rotor and installation cavity inner wall fixed connection, impeller motor (7)'s stator and pivot (4) fixed connection.
2. A dual outlet centrifugal fan according to claim 1, wherein: two groups of mounting lugs (8) are fixedly connected to the upper side wall and the lower side wall of the volute.
3. The dual outlet centrifugal fan of claim 1, wherein: the front shell (1) and the rear shell (2) are connected through a buckle (9) in a clamping mode.
4. A dual outlet centrifugal fan according to claim 1, wherein: the impeller (6) corresponds to the air inlet (3).
5. The dual outlet centrifugal fan of claim 1, wherein: the rear disc (601), the blades (603) and the front disc (602) are connected in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221356393.6U CN218266402U (en) | 2022-06-02 | 2022-06-02 | Double-outlet centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221356393.6U CN218266402U (en) | 2022-06-02 | 2022-06-02 | Double-outlet centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218266402U true CN218266402U (en) | 2023-01-10 |
Family
ID=84756630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221356393.6U Active CN218266402U (en) | 2022-06-02 | 2022-06-02 | Double-outlet centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218266402U (en) |
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2022
- 2022-06-02 CN CN202221356393.6U patent/CN218266402U/en active Active
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