CN213511287U - Double-inlet double-outlet fan - Google Patents

Abstract

The utility model relates to a two fan that go into, including the spiral case, set up in the double-shaft motor at spiral case middle part, set up in the epaxial centrifugal wind wheel of output at double-shaft motor both ends, be provided with two confessions in the spiral case centrifugal wind wheel pivoted wind chamber, the spiral case both ends be provided with communicate in the air intake in wind chamber, each intercommunication in one has been seted up to spiral case both sides end the air outlet in wind chamber, two the air outlet orientation is opposite. This application has and advances doubly under the condition that does not increase motor quantity and does not reduce the amount of wind, and it is more convenient to install, and life is longer.

Description

Double-inlet double-outlet fan

Technical Field

The application relates to the technical field of air conveying equipment, in particular to a double-inlet and double-outlet fan.

Background

At present, a centrifugal fan is a driven fluid machine which increases gas pressure and discharges gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion. Some nonstandard equipment need adopt the mode of two air outlets to accomplish the air feed demand when selecting for use the fan.

The prior patent grant publication number: CN107514379B centrifugal fan with double air inlets and double air outlets discloses a centrifugal fan with double air inlets and double air outlets, which comprises a volute, a motor and a centrifugal wind wheel, wherein the volute comprises an upper shell and a lower shell connected with the upper shell; the upper shell and the lower shell are both provided with air inlets, and the motor is arranged between the upper shell and the lower shell; the centrifugal wind wheel is connected with the motor, the volute is provided with an air deflector, and a double air duct is formed between the air deflector and the centrifugal wind wheel; and an air outlet is arranged on the outer side of the double air ducts.

The above prior art solutions have the following drawbacks: centrifugal fan adopts single motor and single centrifugal wind wheel among the above-mentioned scheme, rotates through motor drive centrifugal wind wheel for the air is blown off by the air outlet along two wind channels after getting into by the air intake of both sides, and this scheme makes the wind that originally blows off by an air outlet become two air outlets, has reduced the size of the wind that blows off by the air outlet.

SUMMERY OF THE UTILITY MODEL

In order not to reduce the size of original wind, this application provides a two advances two fan of going out.

The above object of the present application is achieved by the following technical solutions:

the utility model provides a two-inlet and two-outlet fan, includes the spiral case, set up in the biax motor at spiral case middle part, set up in the epaxial centrifugal wind wheel of output at biax motor both ends, be provided with two confession in the spiral case centrifugal wind wheel pivoted wind chamber, the spiral case both ends be provided with communicate in the air intake in wind chamber, spiral case both sides end is seted up respectively and is communicated in one the air outlet in wind chamber, two the air outlet orientation is opposite.

Through adopting above-mentioned technical scheme, when using this double inlet and double outlet fan, the double-shaft motor carries out work, and the output shaft at double-shaft motor both ends rotates in step to the centrifugal wind wheel that drives both ends rotates, makes the air that centrifugal wind wheel pivoted in-process is with outside from air intake suction to the wind cavity, makes the air blow off along the air outlet again. This scheme drives two centrifugal wind wheels through the biax motor and rotates to make the air quality of suction in two wind cavities the same, make the wind size that blows out along two air outlets the same, make two air outlets of single motor, but not reduce the size of wind, make two advance two fan still can keep powerful amount of wind when using.

Preferably, the volute comprises a middle shell in the middle and outer shells on two sides.

Through adopting above-mentioned technical scheme, set the spiral case to form by the mesochite in the middle of and the extra shell concatenation of both sides for when the double entry double exit fan of production, can install the back with double-shaft motor and two centrifugal wind wheels installation earlier, install the shell at the mesochite both ends again, thereby reduce the installation procedure of double entry double exit fan, make the assembly of double entry double exit fan quicker, improved the production rate of double entry double exit fan.

Preferably, the middle part of the middle shell is provided with a mounting hole for the insertion of the double-shaft motor, the two ends of the middle shell are provided with covers arranged on the motor shells at the two ends of the double-shaft motor, and the outer end of the motor shell is provided with a limiting hole for the output shaft of the double-shaft motor to penetrate out.

Through adopting above-mentioned technical scheme, directly peg graft the mounting hole with double-shaft motor, with the both ends of two motor casing buckle closure and double-shaft motor for double-shaft motor's output shaft is worn out along spacing hole, protects double-shaft motor's body through the motor casing in this scheme, avoids centrifugal wind wheel to damage or outside hard object to enter the wind cavity, causes double-shaft motor's damage, thereby effectual double-shaft motor of having protected.

Preferably, two ends of the double-shaft motor are convexly provided with limiting bosses which are inserted into the limiting holes in an interference manner, the middle shell is provided with connecting holes on the periphery of the mounting hole, and the side end of the motor shell is provided with bolt holes aligned with the connecting holes.

Through adopting above-mentioned technical scheme, set up spacing boss at double-shaft motor's both ends, make spacing boss peg graft in spacing downthehole, make two motor casings with double-shaft motor location, then with the both ends of the inner butt of motor casing at the mesochite, pass the connecting hole behind the bolt hole with the bolt, pass the bolt hole of the other end again, thereby it is fixed with two motor casings and mesochite, make the double-shaft motor at middle part also fixed, it is more convenient to make double-shaft motor's installation fixed through this kind of scheme, it is more firm.

Preferably, the shell is arranged at the air inlet and is provided with a filter screen.

Through adopting above-mentioned technical scheme, the shell sets up the filter screen in air inlet department to filter the air that gets into in the double-click two air-out machines, avoid bulky impurity to get into wind intracavity portion, cause phenomenons such as centrifugal wind wheel damage.

Preferably, the middle shell is formed by integral injection molding.

Through adopting above-mentioned technical scheme, the mesochite is as an organic whole and moulds plastics and form for the structural strength of mesochite is higher, and the mesochite is the skeleton of whole double inlet and double outlet fan, thereby makes double inlet and double outlet fan more durable, and life is longer.

Preferably, the volute is provided with an air deflector at one end of the air outlet, the air deflectors are parallel to each other, and the air deflectors are tangent to the volute.

Through adopting above-mentioned technical scheme, the aviation baffle is tangent in the spiral case, and two aviation baffles of two air outlets department are parallel to each other, when installing double-shaft motor on the mesochite, can put the mesochite on level and smooth ground for the outer end butt of aviation baffle is subaerial, and it will be more convenient to install double-shaft motor this moment again.

To sum up, the beneficial technical effect of this application does:

1. by arranging the double-shaft motor and the two centrifugal wind wheels, the single double-shaft motor synchronously drives the two centrifugal wind wheels to rotate, so that a double-inlet and double-outlet effect is achieved, and meanwhile, the air volume can be kept unchanged;

2. the motor shell is buckled at the outer end of the double-shaft motor, so that the double-shaft motor is fixed on the middle shell by the motor shell, and the double-outlet double-inlet air fan is more convenient to assemble;

3. the volute is provided with the air deflector at one end of the air outlet, and the air deflector is tangent to the volute, so that the middle shell can be directly placed on the ground when the double-shaft motor is installed, and the installation is more convenient.

Drawings

FIG. 1 is a schematic structural view of a double-inlet and double-outlet fan;

FIG. 2 is a partial exploded view of the double inlet and outlet blower;

fig. 3 is an enlarged view of fig. 2 at a.

In the figure: 1. a volute; 2. a double-shaft motor; 3. a centrifugal wind wheel; 4. a middle shell; 5. a housing; 6. a wind cavity; 7. an air inlet; 8. filtering with a screen; 9. an air outlet; 10. an air deflector; 11. mounting holes; 12. connecting holes; 13. a motor housing; 14. bolt holes; 15. a limiting hole; 16. and a limiting boss.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1 and 2, the double-inlet and double-outlet fan includes a volute 1, a double-shaft motor 2 disposed in the middle of the volute 1, and a centrifugal wind wheel 3 disposed on output shafts at both ends of the double-shaft motor 2.

Volute 1 includes mesochite 4 at middle part and bonds in the shell 5 at mesochite 4 both ends, set up between shell 5 and the mesochite 4 and supply 3 pivoted wind cavities 6 of centrifugal wind wheel, shell 5 keeps away from 4 one ends of mesochite and is air intake 7, shell 5 is located integrative the moulding plastics at air intake 7 and is formed with filter screen 8 for the air is earlier through filter screen 8's filtration before getting into wind cavity 6, avoid having the great impurity of volume to get into wind cavity 6 in, cause 3 damages of centrifugal wind wheel.

When shell 5 and shell 4 assemble together, wind chamber 6 is cylindricly, and two opposite air outlets 9 of orientation are seted up in two wind chamber 6 outsides to spiral case 1, and spiral case 1 is equipped with aviation baffle 10 in the integrative protruding one end of two air outlets 9, and aviation baffle 10 is tangent in spiral case 1, and two guide vanes are parallel to each other for when aviation baffle 10 is pressed close to with the plane, the fan that advances doubly can stand on the plane, and when mesochite 4 or shell 5 used alone, mesochite 4 and shell 5 also can stand on ground.

Referring to fig. 2 and 3, the middle shell 4 is formed by integral injection molding, a mounting hole 11 is formed in the middle of the middle shell 4, connecting holes 12 are uniformly formed in the periphery of the mounting hole 11 of the middle shell 4, motor shells 13 are arranged at two end covers of the double-shaft motor 2 inserted into the mounting hole 11, bolt holes 14 aligned with the connecting holes 12 are formed in the periphery of the motor shells 13, the inner ends of the motor shells 13 abut against two sides of the mounting hole 11, and the middle shell 4 and the motor shells 13 are fixed by sequentially penetrating the bolt holes 14 and the bolt holes 14 through bolts.

The spacing hole 15 that supplies the output shaft of double-shaft motor 2 to wear out is seted up at motor casing 13 outer end middle part, and the integrative protruding spacing boss 16 that is equipped with the output shaft coaxial in the both ends of double-shaft motor 2, and spacing boss 16 interference is pegged graft in spacing hole 15 for the inboard butt in motor casing 13 spacing hole 15 is at the both ends of double-shaft motor 2, makes motor casing 13 fixed double-shaft motor 2.

The implementation principle of the embodiment is as follows:

when the double-inlet double-outlet fan is produced, the middle shell 4 is arranged on a plane, the outer end face of one air deflector 10 is abutted to the plane, the double-shaft motor 2 is inserted into the mounting hole 11 in the middle of the middle shell 4, the motor shells 13 are sleeved at two ends of the double-shaft motor 2, output shafts at two ends of the double-shaft motor 2 penetrate through the limiting hole 15, limiting bosses 16 at two ends of the double-shaft motor 2 are inserted into the limiting holes 15 in an interference mode, the centrifugal wind wheel 3 is mounted on the output shafts of the double-shaft motor 2 at the moment, and the outer shells 5 are mounted at two ends of the middle shell 4. When using this double-inlet and double-outlet fan, double-shaft motor 2 carries out work, and the output shaft at double-shaft motor 2 both ends rotates in step to drive the centrifugal wind wheel 3 at both ends and rotate, make 3 pivoted in-process of centrifugal wind wheel with outside air from air intake 7 suction to wind chamber 6 in, make the air blow off along air outlet 9 again.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (7)

1. The utility model provides a fan is gone out to two advances, its characterized in that: including spiral case (1), set up in double-shaft motor (2) at spiral case (1) middle part, set up in centrifugal wind wheel (3) on the output shaft at double-shaft motor (2) both ends, be provided with two confessions in spiral case (1) centrifugal wind wheel (3) pivoted wind chamber (6), spiral case (1) both ends be provided with communicate in air intake (7) of wind chamber (6), spiral case (1) both sides end has been seted up and has respectively been communicated in one air outlet (9) of wind chamber (6), two air outlet (9) orientation is opposite.

2. The double-inlet double-outlet fan according to claim 1, characterized in that: the volute (1) comprises a middle shell (4) in the middle and outer shells (5) on two sides.

3. The double-inlet double-outlet fan according to claim 2, characterized in that: the utility model discloses a two-shaft motor, including mesochite (4), double-shaft motor (2) and motor casing (13), the confession is seted up at mesochite (4) middle part mounting hole (11) that supply double-shaft motor (2) are pegged graft, mesochite (4) both ends are provided with the lid and locate motor casing (13) at double-shaft motor (2) both ends, spacing hole (15) that the output shaft of motor casing (13) worn out are seted up to the confession.

4. The double-inlet double-outlet fan according to claim 3, characterized in that: the double-shaft motor is characterized in that two ends of the double-shaft motor (2) are convexly provided with limiting bosses (16) which are inserted into the limiting holes (15) in an interference mode, connecting holes (12) are formed in the peripheral sides of the mounting holes (11) of the middle shell (4), and bolt holes (14) aligned with the connecting holes (12) are formed in the side ends of the motor shell (13).

5. The double-inlet double-outlet fan of claim 4, wherein: the shell (5) is provided with a filter screen (8) at the air inlet (7).

6. The double-inlet double-outlet fan of claim 5, wherein: the middle shell (4) is formed by integral injection molding.

7. The double-inlet double-outlet fan according to claim 1, characterized in that: the volute (1) is provided with an air deflector (10) at one end of the air outlet (9), the air deflectors (10) are parallel to each other, and the air deflectors (10) are tangent to the volute (1).

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