CN104595209B

CN104595209B - Fan

Info

Publication number: CN104595209B
Application number: CN201310531911.2A
Authority: CN
Inventors: 陈潮; 许彐琼; 任珂
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-02
Filing date: 2013-11-02
Publication date: 2016-09-07
Anticipated expiration: 2033-11-02
Also published as: CN104595209A

Abstract

A kind of fan, including fan frame, impeller, motor, outlet housing and air intake cover, described fan frame includes framework, motor shell and multiple support bar, described outlet housing or described air intake cover include breach, one end of described support bar is fixed with described framework, the other end of described support bar is fixed with described motor shell, and, described support bar at least part is positioned in described breach.This kind of fan has compact conformation, air-flow delivery efficiency high.

Description

Fan

Technical field

The present invention relates to a kind of fan.Especially, but it not in exclusive manner, the present invention relates to a kind of domestic fan.

Background technology

Motor is positioned at the fan of guard and generally includes fan frame, the impeller with multiple blade, drives wheel rotation work Motor, outlet housing and air intake cover, described fan frame includes framework, for the motor shell of fixing motor and multiple support bar, leaf Wheel is between the inlet end and the outlet side of air intake cover of outlet housing.In this kind of fan, owing to support bar has bigger thickness Spend and between the inlet end and the outlet side of air intake cover of outlet housing so that the structure of fan is the compactest, the transmission of its air-flow It is lost the biggest.

Summary of the invention

The invention aims to provide a kind of compact conformation and the higher fan of operating efficiency.This kind of fan, its feature Being, described fan includes that fan frame, impeller, motor, outlet housing and air intake cover, described fan frame include framework, motor shell and many Individual support bar, described outlet housing or described air intake cover include that breach, one end of described support bar are fixed with described framework, described The other end of strut is fixed with described motor shell, and, described support bar at least part is positioned in described breach.

In this kind of fan, described support bar is positioned in the breach of outlet housing or air intake cover, is conducive to shortening air intake cover Average distance between outlet side and the inlet end of outlet housing, thus shorten the transmission range of air-flow and reduce the transmission damage of air-flow Consumption, and make the structure of fan become compact.

Experiment shows, the average distance between blade and the inlet end of outlet housing of impeller is the least more is conducive to improving air-flow Delivery efficiency and the average speed of air-flow that exported.In the prior art, support bar is usually located at impeller and outlet housing Between inlet end, and support bar generally has the thickness more than 10mm at the outgassing direction of outlet housing, thus the leaf of prior art Average distance between blade and the inlet end of outlet housing of wheel is relatively big, and the fan of the present invention is described owing to its support bar is positioned at In breach, be conducive to the average distance shortening between the blade of its impeller and the inlet end of outlet housing, thus improve the defeated of air-flow The average speed of the air-flow going out efficiency and exported.

Preferably, described outlet housing includes breach and central cavity, and described support bar at least part is positioned at described air-out In the breach of cover, described motor at least part is positioned in the central cavity of described outlet housing.So be conducive to fan shorten into Average distance between outlet side and the inlet end of outlet housing of fan housing, thus shorten air-flow in the transmission range within fan With the loss of minimizing air-flow, it is simultaneously also beneficial to the densification of fan.

Preferably, described air intake cover includes breach and central cavity, and described support bar at least part is positioned at described air intake In the breach of cover, described motor at least part is positioned in the central cavity of described air intake cover.So it is also beneficial to fan shorten Average distance between outlet side and the inlet end of outlet housing of air intake cover, thus shorten air-flow the transmission within fan away from From the loss with minimizing air-flow, it is also beneficial to the densification of fan.

Described breach preferably includes radially-arranged breach.The quantity of the breach of described air intake cover or described outlet housing is led to It is frequently located between 3 to 12.

Described fan frame can also include the guide ring for guiding air-flow being positioned at described framework.Preferably, described fan Frame includes the guide ring for guiding air-flow being positioned at described framework, wherein, one end of described guide ring and described outlet housing Contacting, the other end of described guide ring contacts with described air intake cover.So advantageously reduce the backflow of air-flow and reduce gas The produced noise of stream.

Described impeller includes that multiple blade, described blade are usually more than 10mm, preferably with the distance of described outlet housing It is not more than 6mm, more preferably no more than 4mm.

Preferably, described outlet housing and described air intake cover all include being separated by least 3 conducting elements that certain interval arranges (or Claim flow deflector), and, in the conducting element of described outlet housing and described air intake cover, at least a conducting element has breach.

Preferably, described outlet housing and described air intake cover all include being separated by least 3 conducting elements that certain interval is arranged, often Individual conducting element all includes suction side, blows out end, have the first side of convex outward and have the second side of inner sunken face；? In the conducting element that any two is adjacent, the first side of one of them conducting element and the second side of another conducting element are common Limit at least one for the inner passage of transmission airflow, at least one there is height not less than 6mm for input air-flow Air inlet and at least one there is height not less than the gas outlet of 6mm for output gas flow, one of which conducting element At the gas outlet that second side and the short transverse comprising the gas outlet that this second side is limited and this second side are limited Every intersection being formed of the plane of airflow direction on be constantly present two points meeting following condition: connect these two points Straightway is not more than 0 to the distance of the first side of another conducting element therein.

Owing to the height of described air inlet and described gas outlet is all not less than the outlet housing of 6mm, i.e. fan and air intake cover all There is sufficiently large air inlet and gas outlet, can guarantee that input and the output of air-flow；Simultaneously as outlet housing or air intake cover is upper Stating structure, its human eye can be hidden with the most invisible parts being positioned within fan of various angles in the outside of outlet housing or air intake cover Tibetan is positioned at the parts such as the impeller within fan, and its human body is also difficult to be touched the impeller of rotation by outlet housing or air intake cover, favorably In the security that the attractive in appearance and fan improving fan uses.

Described conducting element can be arranged around axis, and multiple conducting elements of described outlet housing or described air intake cover can also phase It is arranged in parallel mutually.Preferably, multiple conducting elements of described outlet housing or described air intake cover are all arranged around described axis.

Described conducting element includes annular conducting element, arc conducting element and bar shaped conducting element etc..Described annular conducting element includes Annular conducting element and oval ring conducting element.

Preferably, described outlet housing and described air intake cover all include the annular conducting element arranged around axis, described annular The number of conducting element is usually located between 3 to 30, is preferably located between 5 to 20.

Described annular conducting element can include first point of annular conducting element and be positioned at described first point of annular conducting element upstream And the second point of annular conducting element being connected with described first point of annular conducting element.Described annular conducting element is by two points of annular water conservancy diversion Part is constituted, and so can use mould that two points of annular conducting elements are carried out batch micro operations respectively, be conducive to improving product Production efficiency.It is true that using mould that this annular conducting element with curved surface carries out overall manufacture is to be difficult to the smooth demoulding 's.Preferably, described annular conducting element can include being sequentially connected with first point of annular conducting element, second point of annular conducting element, 3rd point of annular conducting element and the 4th point of annular conducting element.This annular conducting element with curved surface is divided into four parts, holds Mould is easily used respectively they to be carried out batch micro operations.

Described inner passage is usually located between 25mm to 150mm along the length of described axis direction, is preferably located in Between 25mm to 90mm.

Preferably, described outlet housing and described air intake cover all have the length along described axis direction, wherein, described in go out The length of fan housing is more than the length of described air intake cover.

The height of described air inlet is usually located between 6mm to 15mm, is preferably located between 6mm to 10mm；Described go out The height of gas port is usually located between 6mm to 15mm, is preferably located between 6mm to 10mm.

Described outlet housing and described air intake cover can include the fixture being positioned in described inner passage, described fixture It is attached respectively with two the adjacent conducting elements limiting described inner passage.Preferably, described outlet housing and described air intake Cover all includes the fixture being positioned in described inner passage, wherein, described fixture and two phases limiting described inner passage Adjacent conducting element integration.Use and the integrated fixture of two adjacent conducting elements of the described inner passage of restriction, favorably In making that inner passage is firm, being unlikely to deform, to improve the service life of outlet housing, it is also beneficial to use mould that outlet housing is carried out Batch micro operations.

Preferably, each conducting element of described outlet housing and described air intake cover is arranged around described axis, described air intake First side of each conducting element of cover both facing to described axis, the second side of each conducting element of described outlet housing both facing to Described axis.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the fan of the present invention.

Fig. 2 is the sectional view that the A A line along Fig. 1 is intercepted.

Fig. 3 is the sectional view that the B B line along Fig. 1 is intercepted.

Fig. 4 is the side view of the outlet housing in Fig. 1.

Fig. 5 is the rearview of the outlet housing in Fig. 1.

Fig. 6 is the structural representation of the fan frame in Fig. 1.

Fig. 7 is the schematic diagram of second embodiment of the present invention.

Fig. 8 is the sectional view that the C C line along Fig. 7 is intercepted.

Fig. 9 is the sectional view that the D D line along Fig. 7 is intercepted.

Figure 10 is the side view of the air intake cover in Fig. 7.

Detailed description of the invention

Fig. 1 is the schematic diagram of the fan of the present invention from device forward observation, and Fig. 2 is that the A A line along Fig. 1 is intercepted Sectional view, Fig. 3 is the sectional view that the B B line along Fig. 1 is intercepted, Fig. 4 and Fig. 5 is the side-looking of the outlet housing in Fig. 1 respectively Figure and rearview, Fig. 6 is the structural representation of the fan frame in Fig. 1.It can be seen that fan 100 includes pedestal 1 from Fig. 1 to Fig. 6 With the fan main body being positioned on pedestal 1；Fan main body includes the outlet housing that fan frame 63, impeller 61, motor 10 are connected with fan frame 63 15 and the air intake cover 16 that is connected with fan frame 63；Fan frame 63 includes framework 64, for the motor shell 65 of fixing motor 10 and 4 Strut 70；One end of support bar 70 is fixed with framework 64, and the other end of support bar 70 is fixed with motor shell 65；Outlet housing 15 wraps Include 4 radially-arranged breach 71 and 76,4 support bars 70 of a central cavity lay respectively at 4 radial directions of outlet housing 15 and divide In the breach 71 of cloth, motor 10 has part to be positioned in the central cavity 76 of outlet housing 15.

It can easily be seen that the fan of this kind of structure is the compactest from Fig. 2 and Fig. 3, the outlet side of its air intake cover 16 and air-out Distance D5 between the inlet end of cover 15 is shorter, and the blade 62 of its impeller 61 is less with the distance of the inlet end of outlet housing 15, has It is beneficial to the average speed of delivery efficiency and the air-flow exported improving air-flow.

It will be seen that fan frame 63 also includes the guide ring for guiding air-flow being positioned at framework 64 from Fig. 2 and Fig. 3 66, the front end of this guide ring 66 contacts with the inlet end of outlet housing 15, gives vent to anger with air intake cover 16 in the rear end of this guide ring 66 End contacts.This guide ring 66 can effectively reduce noise produced by the backflow of air-flow and air-flow.

In the present embodiment, outlet housing 15 and air intake cover 16 are connected (being not drawn in figure) respectively by screw with fan frame 63, I.e. outlet housing 15 and air intake cover 16 can be separated with fan frame 63 by dismounting screw, in order to outlet housing 15 and air intake cover 16 carry out list Solely clean.

Motor 10 is an alternating current motor, and this motor is fixed on motor shell 65 by screw, and motor 10 has parallel In the rotating shaft 7 of axis X, impeller 61 is an axial wheel.

Outlet housing 15 include around axis X and be separated by 7 annular conducting elements 31 that certain gap arranges and with near The plectane 6 that one annular conducting element of axis X connects, these 7 annular conducting elements all have length D2 along axis X direction.

From Fig. 2 it will be clear that each of 7 annular conducting elements 31 include suction side 13, blowout end 14, There is the first side 21 of convex outward 19 and there is the second side 20 of inner sunken face 18；These 7 annular conducting elements 31 are separated by Certain gap is arranged；In the annular conducting element 31 that any two is adjacent, the first side of one of them annular conducting element 21 is relative with the second side 20 of another annular conducting element, this first side 21 and second side relative with this first side 21 Face 20 collectively defines inner passage 12, air inlet 8 and gas outlet 4.

From Fig. 2 it can also be seen that in the annular conducting element 31 that any two is adjacent, one of which conducting element Second side 20 is limited with short transverse D comprising the gas outlet 4 that this second side 20 is limited and this second side 20 Be constantly present on every intersection 38 that the plane of the airflow direction P at gas outlet is formed a little 22 and point 23, tie point 22 and point The straightway 39 of 23 is D1 to the distance of the first side 21 of another conducting element therein.

In the present embodiment, intersection 38 is the curve of arc, and point 22 is the starting point of intersection 38, and point 23 is the end of intersection 38 Point, D1 is about 0, and D2 is 60mm, and the height of air inlet 8 and gas outlet 4 is all 8mm.With reference to Fig. 2 and combine the value of D1, easily send out Existing, the fan of the present embodiment, its human eye is positioned at so that various angles are the most invisible in the front of the gas outlet 4 of outlet housing 15 The impeller 61 of fan housing 15 upstream and other parts, its human body is also difficult to touch impeller 61 by outlet housing 15, can be the most hiding Being positioned at the parts of outlet housing 15 upstream, this is conducive to improving the attractive in appearance of fan and improving the security that fan uses.

Air intake cover 16 includes around axis X and is separated by 8 annular conducting elements 69 and the shell 75 that certain gap is arranged, should 8 annular conducting elements 69 all have length D3 along axis X direction.

From Fig. 2 it will be clear that each of 8 annular conducting elements 69 include suction side 80, blowout end 81, There is the first side 73 of convex outward and there is the second side 72 of inner sunken face；These 8 annular conducting elements 69 are separated by necessarily Gap arrange；In the annular conducting element 69 that any two is adjacent, the first side 73 of one of them annular conducting element with Second side 72 of another annular conducting element is relative, this first side 73 and second side 72 relative with this first side 73 Collectively define inner passage 11, air inlet 67 and gas outlet 68.

From Fig. 2 it can also be seen that in the annular conducting element 69 that any two is adjacent, one of which conducting element Second side 72 is limited with the short transverse comprising the gas outlet 68 that this second side 72 is limited and this second side 72 A little 82 and point 83, tie point 82 and point 83 it are constantly present on every intersection that the plane of the airflow direction at gas outlet is formed Straightway is D4 to the distance of the first side 73 of another conducting element therein.

In the present embodiment, D4 is about 0, and D3 is 30mm, and the height of air inlet 67 and gas outlet 68 is all 8mm.With reference to Fig. 2 And combine the value of D4, easily find, the fan of the present embodiment, its human eye in the front of the air inlet 67 of air intake cover 16 with various angles Spending the most invisible impeller 61 being positioned at air intake cover 16 downstream and other parts, its human body is also difficult to be touched by air intake cover 16 Impeller 61, can hide the parts being positioned at air intake cover 16 downstream completely, and this is conducive to improving the attractive in appearance of fan and improving fan making Security.

It can also be seen that outlet housing 15 also includes the multiple fixtures 5 in internally positioned passage 12 from Fig. 1 and Fig. 3, Gu Locking member 5 is integrated with two the adjacent annular conducting elements 31 limiting inner passage 12；Air intake cover 16 also includes internally positioned logical Multiple fixtures 84 in road 11, fixture 84 is integrated with two the adjacent annular conducting elements 69 limiting inner passage 11. So be conducive to outlet housing 15 or air intake cover 16 to carry out overall manufacture, make that inner passage is firm, be unlikely to deform, to improve outlet housing 15 or the service life of air intake cover 16.Preferably, outlet housing 15, air intake cover 16 and fan frame 63 are all formed by plastics.

From Fig. 2 it can be clearly seen that in the present embodiment, the first side of 8 annular conducting elements 69 of air intake cover 16 Face 73 is both facing to axis X, and the second side 20 of 7 annular conducting elements 31 of outlet housing 15 is both facing to described axis X.Air intake cover 16 Conducting element and outlet housing 15 conducting element this kind arrange, be conducive to improve air-flow delivery efficiency.

When fan 100 works, motor 10 drives impeller 61 rotary work, and the air-flow around fan 100 passes through air intake cover In 16 are inhaled into fan frame 63 and being accelerated by impeller 61, the air-flow accelerated by impeller 61 is exported by outlet housing 15.

Fig. 7 is the front schematic view of second embodiment of the present invention, Fig. 8 be the C C line along Fig. 7 intercepted cut Face figure, Fig. 9 is the sectional view that the D D line along Fig. 7 is intercepted, and Figure 10 is the side view of the air intake cover in Fig. 7.From Fig. 7 to figure It can easily be seen that the fan of the present embodiment and first embodiment are similar in 10, simply the position of breach and central cavity is the most not With.In the present embodiment, air intake cover 16 has 4 radially-arranged breach 79 and one by an annular near axis X The central cavity 77 that conducting element 69 and plectane 78 are constituted, 4 support bars 70 of fan frame 63 lay respectively at 4 of air intake cover 16 and lack In mouth 79, motor 10 has part to be positioned in the central cavity 77 of air intake cover 16.And in first embodiment, outlet housing 15 has 4 radially-arranged breach 71 and a central cavity 76,4 support bars 70 of fan frame 63 lay respectively at 4 of outlet housing 15 In breach 71, motor 10 has part to be positioned in the central cavity 76 of outlet housing 15.

The fan of this embodiment is the compactest, between outlet side and the inlet end of outlet housing 15 of its air intake cover 16 away from The shortest from D5, the distance between blade 62 and the inlet end of outlet housing 15 of its impeller 61 is the least, is conducive to improving air-flow Delivery efficiency and the average speed of air-flow that exported.

While there has been shown and described that it is presently considered to be preferred embodiments of the invention, but it will be apparent that this area Technical staff can carry out various changes and improvements, and deviate from the scope of the present invention that appended claims is limited.

Claims

1. a fan, it is characterised in that described fan includes fan frame, impeller, motor, outlet housing and air intake cover, described fan frame Breach, one end of described support bar is included including framework, motor shell and multiple support bar, described outlet housing or described air intake cover Fixing with described framework, the other end of described support bar is fixed with described motor shell, and, described support bar at least part Being positioned in described breach, described outlet housing and described air intake cover all include being separated by least 3 conducting elements that certain interval is arranged, often Individual conducting element all includes suction side, blows out end, have the first side of convex outward and have the second side of inner sunken face；? In the conducting element that any two is adjacent, the first side of one of them conducting element and the second side of another conducting element are common Limit at least one for the inner passage of transmission airflow, at least one there is height not less than 6mm for input air-flow Air inlet and at least one there is height not less than the gas outlet of 6mm for output gas flow, one of which conducting element At the gas outlet that second side and the short transverse comprising the gas outlet that this second side is limited and this second side are limited Every intersection being formed of the plane of airflow direction on be constantly present two points meeting following condition: connect these two points Straightway is equal to 0 to the distance of the first side of another conducting element therein.