CN109595186A

CN109595186A - A kind of air-foil fan

Info

Publication number: CN109595186A
Application number: CN201811496556.9A
Authority: CN
Inventors: 付观井
Original assignee: FOSHAN HAINAN JIUZHOU POPULA FAN Co Ltd
Current assignee: FOSHAN HAINAN JIUZHOU POPULA FAN Co Ltd
Priority date: 2018-12-07
Filing date: 2018-12-07
Publication date: 2019-04-09
Anticipated expiration: 2038-12-07
Also published as: CN109595186B

Abstract

The invention discloses a kind of air-foil fans, including spiral case, one end Middle face of spiral case is provided with air inlet, impeller is provided in spiral case, impeller includes chassis, several blades of chassis upper surface are set, blade includes surface plate, arc plate, the top surface of blade is provided with the first tilting section, connect the second tilting section of the first tilting section, first inclined height in the middle part of chassis towards chassis lateral direction by being gradually increased, second tilting section connects the first tilting section side, the lateral surface of spiral case includes the different ascending head and the tail splicing arc section of several segments radius, adjacent arc section is tangent mutually, the maximum arc section end of radius is provided with discharge pipe, the one side wall of discharge pipe and the maximum arc section of radius are tangent, another side wall of discharge pipe is connected with the smallest arc section of radius.The present invention solves the problems, such as that traditional blower causes fan performance variation to fluctuate the not high enough problem of larger, conventional fan outlet air efficiency using the design of single straight plate blade or single circular arc.

Description

A kind of air-foil fan

Technical field

The present invention relates to a kind of blower, especially a kind of air-foil fan.

Background technique

The design method of blower centrifugal impeller is using single straight plate blade or single circular arc flow design, Seriation Design at present It will cause that performance change is too big, and not high using the fan efficiency of this impeller, be not able to satisfy the demand of a variety of outlet air performances. Impeller blade, impeller hub disk are processed using steel plate, and blade bending deformation is difficult to guarantee, the Blade Properties processed using single plate Difference；Using welding processing impeller, machining accuracy is difficult to guarantee, and manufacturing cost is too high, and working efficiency is lower, is difficult to guarantee fan performance； Using steel plate materials welding integral leaf wheel, when running at high speed also it is easy to produce static electricity produce fire by friction flower cause fire.

Summary of the invention

The technical problem to be solved by the present invention is traditional blower leads to wind using the design of single straight plate blade or single circular arc Machine performance change fluctuates larger problem, in addition, solving the problems, such as that the outlet air efficiency of conventional fan is not high enough.

The solution that the present invention solves its technical problem is:

A kind of air-foil fan, including spiral case, one end Middle face of the spiral case are provided with air inlet, setting in the spiral case There are impeller, the setting of impeller described in the air inlet face, the impeller includes chassis, the several of the chassis upper surface are arranged in A blade, several described blades are arranged with the center circumferential array on the chassis, and the blade includes surface plate, described in connection The arc plate of surface plate side, the arc plate are set to far from the side in the middle part of the chassis, the top surface setting of the blade There is the second tilting section of the first tilting section, connection first tilting section, first tilting section is set to the surface plate Top surface, first tilting section are disposed in proximity to one end of the center chassis, and the first inclined height is by the chassis Middle part is gradually increased towards the chassis lateral direction, and second tilting section connects the highest point one of first tilting section The height of side, second tilting section is gradually reduced toward the chassis outer ledge, the upper surface of second tilting section and institute State chassis surface formed the first angle, first tilting section, second tilting section lateral surface with the blade Lateral surface is coplanar, and the lateral surface of the spiral case includes the arc section of the ascending head and the tail splicing of several segments radius, and adjacent is described Arc section is tangent mutually, and the maximum arc section end of radius is provided with discharge pipe, the one side wall and radius of the discharge pipe The maximum arc section is tangent, and another side wall of the discharge pipe is connected with the smallest arc section of radius.

As a further improvement of the above technical scheme, the arc section is arranged four, the radius of four arc sections It is of different sizes.

As a further improvement of the above technical scheme, the cross section of the discharge pipe is round or rectangle.

As a further improvement of the above technical scheme: the impeller further includes reel, is provided with out in the middle part of the chassis Hole, the periphery of the reel are provided with several grooves, and the inner wall of the aperture is provided with several protrusions, the protrusion and institute It states groove and corresponds cooperation, the spiral case is provided with motor far from the air inlet side, and the output shaft of the motor is worn The spiral case is crossed to be connected the reel.

As a further improvement of the above technical scheme, the periphery of the reel is provided with several slots, described flat Panel connects the slot, and the tangential direction of the depth direction of slot slot position corresponding with the reel forms acute angle.

As a further improvement of the above technical scheme, first angle is 10 ° -20 °.

As a further improvement of the above technical scheme, the surface plate and the tangent connection of the arc plate, the circular arc The tangent line of plate and the chassis edge forms obtuse angle.

As a further improvement of the above technical scheme, the air inlet is provided with wind collecting unit, and the wind collecting unit includes cover Body, the disk body for connecting the cover bottom, the opening of the cover and the opening of the disk body mutually deviate from setting, the cover Bottom be connected to the disk body, the opening side of the cover is provided with ring flange, and the ring flange connects the air inlet, institute State the side that disk body is disposed in proximity to the air inlet.

As a further improvement of the above technical scheme, the side of the disk body has a taper, the disk body side it is outer Diameter is gradually increased from the cover side toward the direction of the air inlet.

As a further improvement of the above technical scheme, the impeller uses aluminum alloy material.

As a further improvement of the above technical scheme, the spiral case uses aluminum alloy material.

As a further improvement of the above technical scheme, the cross section of the discharge pipe is circle.

As a further improvement of the above technical scheme, first angle is 15 °.

The beneficial effects of the present invention are: the blade is arranged with center chassis circumference array, so that chassis is during rotation With movable vane piece rotation, it can be achieved that the function of air draught and air draft, the setting of the surface plate and the arc plate are extraneous upon rotation of the blade Wind blown out from surface plate using arc plate, the effective controllability for improving air inlet with outlet air passes through first tilting section, the The setting of two tilting sections, the first angle, extraneous air are inhaled into the middle part of chassis, and partial air passes through the lateral surface of blade Blowout, partial air are blown out again by first tilting section, the second tilting section, the first angle, when air is by first inclination Section, the second tilting section, the first angle, air are moved along its surface, and the performance indicator for the blower which meets effectively mentions High impeller reaches the design efficiency of some particular characteristic index, and the performance of impeller can be played preferably, the side packet of the spiral case The ascending head and the tail splicing of the different arc section of several segments radius is included, the adjacent arc section is tangent mutually, and radius is maximum The arc section end is provided with discharge pipe, and the one side wall and the maximum arc section of radius of the discharge pipe are tangent, described Another side wall of discharge pipe is connected with the smallest arc section of radius, so, it is possible more convenient side to spiral case into The relevant radial design of row is adjusted, the performance of more convenient control blower.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described.Obviously, described attached drawing is a part of the embodiments of the present invention, rather than is all implemented Example, those skilled in the art without creative efforts, can also be obtained according to these attached drawings other designs Scheme and attached drawing.

Fig. 1 is explosive view of the invention；

Fig. 2 is the first axonometric drawing of impeller of the invention；

Fig. 3 is impeller side structural schematic diagram of the invention；

Fig. 4 is impeller overlooking structure diagram of the invention；

Fig. 5 is the second axonometric drawing of impeller of the invention；

Fig. 6 is wind collecting unit of the invention, impeller side schematic diagram；

Fig. 7 is side schematic view of the invention；

Fig. 8 is spiral case side schematic view of the invention.

In figure: air inlet 1, chassis 2, surface plate 3, arc plate 4, the first tilting section 5, the second tilting section 6, the first angle 7, Arc section 8, discharge pipe 9, reel 10, obtuse angle 11, motor 12, groove 13, protrusion 14, slot 15, acute angle 16, cover 17, disk body 18, ring flange 19.

Specific embodiment

It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear Chu is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair Bright a part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not being paid Other embodiments obtained, belong to the scope of protection of the invention under the premise of creative work.In addition, be previously mentioned in text All connection/connection relationships not singly refer to that component directly connects, and referring to can be added deduct according to specific implementation situation by adding Few couple auxiliary, Lai Zucheng more preferably coupling structure.Each technical characteristic in the invention, in not conflicting conflict Under the premise of can be with combination of interactions.

One end Middle face of referring to Fig.1~Fig. 8, a kind of air-foil fan, including spiral case, the spiral case is provided with air inlet 1, Impeller, the setting of impeller described in 1 face of air inlet are provided in the spiral case, the impeller includes chassis 2, is arranged described Several blades of 2 upper surface of chassis, several described blades are arranged with the center circumferential array on the chassis 2, the blade Arc plate 4 including surface plate 3, connection 3 side of surface plate, the arc plate 4 are set to far from 2 middle part of chassis Side, the top surface of the blade are provided with the second tilting section 6 of the first tilting section 5, connection first tilting section 5, and described the One tilting section 5 is set to the top surface of the surface plate 3, and first tilting section 5 is disposed in proximity to the one of 2 center of chassis End, the first inclined height are gradually increased by 2 middle part of chassis towards 2 lateral direction of chassis, and described second inclines Oblique section 6 connects the highest point side of first tilting section 5, and the height of second tilting section 6 is toward 2 outer ledge of chassis It is gradually reduced, the surface on the upper surface of second tilting section 6 and the chassis 2 forms the first angle 7, first tilting section 5, the lateral surface of second tilting section 6 is coplanar with the lateral surface of the blade, and the lateral surface of the spiral case includes several segments The arc section 8 of the ascending head and the tail splicing of radius, mutual tangent, the maximum arc section 8 of radius of the adjacent arc section 8 End is provided with discharge pipe 9, and the one side wall and the maximum arc section 8 of radius of the discharge pipe 9 are tangent, the discharge pipe 9 Another side wall be connected with the smallest arc section 8 of radius.

In the present embodiment, the blade is with the setting of 2 center circumferential array of chassis, so that chassis 2 drives during rotation Blade rotation, it can be achieved that air draught and air draft function, the setting of the surface plate 3 and the arc plate 4, upon rotation of the blade the external world Wind is blown out from surface plate 3 using arc plate 4, the effective controllability for improving air inlet with outlet air, by first tilting section 5, The setting of second tilting section 6, the first angle 7, extraneous air are inhaled into from the middle part on chassis 2, and partial air is by blade Lateral surface blowout, partial air are blown out again by first tilting section 5, the second tilting section 6, the first angle 7, when air is by being somebody's turn to do First tilting section 5, the second tilting section 6, the first angle 7, air are moved along its surface, the performance for the blower which meets Index effectively improves the design efficiency that impeller reaches some particular characteristic index, and the performance of impeller can be played preferably, the snail The side of shell includes the different ascending head and the tail of arc section 8 splicing of several segments radius, the adjacent mutual phase of the arc section 8 It cuts, maximum 8 end of arc section of radius is provided with discharge pipe 9, and the one side wall and radius of the discharge pipe 9 are maximum described Arc section 8 is tangent, and another side wall of the discharge pipe 9 is connected with the smallest arc section 8 of radius, so, it is possible more square Just the side to spiral case carries out relevant radial design adjusting, the performance of more convenient control blower.

It is further used as preferred embodiment, the arc section 8 is arranged four, and the radius of four arc sections 8 is big Small difference；The structure is simple, setting is convenient, setting with this configuration, adjusting four different arc sections 8 that can be more convenient Radius, in practical applications, those skilled in the art can be according to the size of different blower air output demands to each section of arc section 8 Radius be adjusted.

It is further used as preferred embodiment, the cross section of the discharge pipe 9 is rectangle.

It is further used as preferred embodiment, the cross section of the discharge pipe 9 is circle.

The structure is simple, setting is convenient, by the rectangle or it is circular be arranged, can adapt to more kinds of outlet air needs It asks.

It is further used as preferred embodiment, the impeller further includes reel 10, is provided with out in the middle part of the chassis 2 Hole, the periphery of the reel 10 are provided with several grooves 13, and the inner wall of the aperture is provided with several raised 14, described convex It plays 14 and is corresponded with the groove 13 and cooperated, the spiral case is provided with motor 12, the electricity far from 1 side of air inlet The output shaft of machine 12 passes through the spiral case and is connected the reel 10；The structure is simple, setting is convenient, setting with this configuration It sets, more convenient connection for realizing reel 10 and motor 12, meanwhile, motor 12 can be driven and then the connection with the reel 10 Chassis 2 rotates.

It is further used as preferred embodiment, the periphery of the reel 10 is provided with several slots 15, described flat Panel 3 connects the slot 15, the tangential direction of 15 position of the depth direction of the slot 15 slot corresponding with the reel 10 Form acute angle 16；The structure is simple, setting is convenient, and setting with this configuration more convenient can be entered the wind on blade Angle adjusting.

It is further used as preferred embodiment, first angle 7 is 10 ° -20 °；The structure is simple, setting is reasonable, The air output of the setting of first angle 7, blade is better, it is preferred that first angle 7 takes 15 ° in practical applications.

It is further used as preferred embodiment, first angle is 15 °.

It is further used as preferred embodiment, the surface plate 3 and the tangent connection of the arc plate 4, the arc plate 4 Obtuse angle 11 is formed with the tangent line at 2 edge of chassis, the structure is simple, setting is convenient, and it is more stable to can be realized outlet air, furthermore Those skilled in the art can be according to the adjustment to obtuse angle 11, so that meeting is accordingly fan performance.

It is further used as preferred embodiment, the air inlet 1 is provided with wind collecting unit, and the wind collecting unit includes cover 17, the disk body 18 of 17 bottom of cover is connected, the opening of the cover 17 and the opening of the disk body 18 mutually deviate from setting, The bottom of the cover 17 is connected to the disk body 18, and the opening side of the cover 17 is provided with ring flange 19, the ring flange The 19 connection air inlets 1, the disk body 18 are disposed in proximity to the side of the air inlet 1；The structure is simple, setting is convenient, Setting with this configuration, it is more stable from the air inlet of the air inlet 1 of spiral case, intake is bigger.

Be further used as preferred embodiment, the side of the disk body 18 has a taper, 18 side of disk body it is outer Diameter is gradually increased from 17 side of cover toward the direction of the air inlet 1；The structure is simple, setting is convenient, passes through setting for structure It sets, disk body 18 is more close to fan blade, and the inner wall of disk body 18 is more close to the top surface of second tilting section 6, so that blower is entered the wind It is more stable.

It is further used as preferred embodiment, the spiral case is all made of aluminum alloy material.

It is further used as preferred embodiment, the impeller uses aluminum alloy material.

It is easy to produce static electricity when avoiding running at high speed using traditional steel to produce fire by friction by the setting of the aluminum alloy material Flower, by using aluminum alloy material, those skilled in the art can disposably cast integral wheel, in addition, the camber of arc plate 4 It is bent more accurate, it is ensured that air inlet, the air outlet angle of blade do not need secondary operation integral wheel, improve impeller usability Energy and production efficiency.

Those skilled in the art correspondingly can be bent the blade by changing the outer diameter of the impeller during design Intersection point diameter increases, and blade bending intersection point diameter refers to the surface plate 3 and 4 junction of arc plate；In impeller outer diameter When increase, which increases, i.e. the diameter that the highest point of several first tilting sections 5 is surrounded increases； When the outer diameter of impeller increases, the arc plate 4, surface plate 3 height can be correspondingly improved, and then effectively improve air quantity；When When the outer diameter of impeller increases, which correspondingly increases；When impeller outer diameter increases, which correspondingly increases.

Better embodiment of the invention is illustrated above, but the invention is not limited to the implementation Example, those skilled in the art can also make various equivalent modifications on the premise of without prejudice to spirit of the invention or replace It changes, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.

Claims

1. a kind of air-foil fan, including spiral case, one end Middle face of the spiral case is provided with air inlet (1), it is characterised in that: institute It states and is provided with impeller in spiral case, the setting of impeller described in air inlet (1) face, the impeller includes chassis (2), is arranged in institute Several blades of chassis (2) upper surface are stated, several described blades are arranged with the center circumferential array of the chassis (2), institute The arc plate (4) that blade includes surface plate (3), connection surface plate (3) side is stated, the arc plate (4) is set to separate Side in the middle part of the chassis (2), the top surface of the blade are provided with the first tilting section (5), connection first tilting section (5) The second tilting section (6), first tilting section (5) is set to the top surface of the surface plate (3), first tilting section (5) Be disposed in proximity to the one end at the chassis (2) center, the first inclined height by the middle part of the chassis (2) towards the bottom Disk (2) lateral direction is gradually increased, and second tilting section (6) connects the highest point side of first tilting section (5), described The height of second tilting section (6) is gradually reduced toward the chassis (2) outer ledge, the upper surface of second tilting section (6) with The surface of the chassis (2) forms the first angle (7), first tilting section (5), second tilting section (6) lateral surface Coplanar with the lateral surface of the blade, the lateral surface of the spiral case includes the circular arc of the ascending head and the tail splicing of several segments radius Section (8), the adjacent arc section (8) is tangent mutually, and maximum arc section (8) end of radius is provided with discharge pipe (9), The one side wall of the discharge pipe (9) and the maximum arc section (8) of radius are tangent, another side wall of the discharge pipe (9) with The smallest arc section (8) of radius is connected.

2. a kind of air-foil fan according to claim 1, it is characterised in that: the arc section (8) is arranged four, four institutes The radius size for stating arc section (8) is different.

3. a kind of air-foil fan according to claim 1, it is characterised in that: the cross section of the discharge pipe (9) is rectangle.

4. a kind of air-foil fan according to claim 1, it is characterised in that: the impeller further includes reel (10), described It is provided with aperture in the middle part of chassis (2), the periphery of the reel (10) is provided with several grooves (13), the inner wall of the aperture Be provided with several raised (14), the protrusion (14) and the groove (13) correspond and cooperate, the spiral case far from described Air inlet (1) side is provided with motor (12), and the output shaft of the motor (12) passes through the spiral case and is connected the reel (10)。

5. a kind of air-foil fan according to claim 4, it is characterised in that: the reel (10) if periphery be provided with Dry slot (15), the surface plate (3) connect the slot (15), the depth direction and the reel of the slot (15) (10) tangential direction of corresponding slot (15) position forms acute angle (16).

6. a kind of air-foil fan according to claim 1, it is characterised in that: first angle (7) is 10 ° -20 °.

7. a kind of air-foil fan according to claim 1, it is characterised in that: the surface plate (3) and the arc plate (4) The tangent line at tangent connection, the arc plate (4) and the chassis (2) edge forms obtuse angle (11).

8. a kind of air-foil fan according to claim 1, it is characterised in that: the air inlet (1) is provided with wind collecting unit, institute State the disk body (18) that wind collecting unit includes cover (17), connection cover (17) bottom, the opening of the cover (17) with it is described The opening of disk body (18) mutually deviates from setting, and the bottom of the cover (17) is connected to the disk body (18), the cover (17) Opening side is provided with ring flange (19), and the ring flange (19) connects the air inlet (1), and the disk body (18), which is set to, leans on The side of the nearly air inlet (1).

9. a kind of air-foil fan according to claim 8, it is characterised in that: the side of the disk body (18) has taper, The outer diameter of disk body (18) side is gradually increased from the cover (17) side toward the direction of the air inlet (1).

10. a kind of air-foil fan according to claim 1, it is characterised in that: the spiral case uses aluminum alloy material.

11. a kind of air-foil fan according to claim 1, it is characterised in that: the impeller uses aluminum alloy material.

12. a kind of air-foil fan according to claim 1, it is characterised in that: the cross section of the discharge pipe (9) is circle Shape.

13. a kind of air-foil fan according to claim 6, it is characterised in that: first angle is 15 °.