CN202158015U - Fan casing and fan comprising same - Google Patents
Fan casing and fan comprising same Download PDFInfo
- Publication number
- CN202158015U CN202158015U CN 201120266296 CN201120266296U CN202158015U CN 202158015 U CN202158015 U CN 202158015U CN 201120266296 CN201120266296 CN 201120266296 CN 201120266296 U CN201120266296 U CN 201120266296U CN 202158015 U CN202158015 U CN 202158015U
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- CN
- China
- Prior art keywords
- flange portion
- blower
- fan
- subtracts
- mounting hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a fan casing and a fan comprising the fan casing. The fan casing comprises a cavity, an upper end face and a lower end face, wherein the cavity is provided with a center line; outward-stretched flange parts are respectively formed in the radial direction; and at least one flange part is provided with an adhesive reducing part axially penetrating through the flange part. The fan casing disclosed by the utility model has the advantages that the resin deformation such as shrinkage, warping and the like can be prevented; the product qualified rate is increased; the usage amount of resin can be reduced; and the production cost is reduced.
Description
Technical field
The utility model relates to a kind of blower-casting and a kind of fan that comprises this blower-casting, more specifically, relates to a kind of blower-casting that prevents in forming process, to occur shrink, and a kind of fan that comprises said blower-casting.
Background technique
At present, most of electronic equipment all is provided with cooling fan, the heat of the electronic equipment generation in service that is used to leave.General fan comprises: motor; Impeller, this impeller have a plurality of epitrochanterian blades that are installed to motor; And housing, the stator of this housings support motor and the periphery of surrounding impeller.Said housing comprises: chamber, the passage of the air-flow that this chamber is formed for being produced by wheel rotation; Framework, this frame supported stator; And a plurality of ribs, these ribs are arranged to cross said passage and make said chamber and said framework is connected to each other.
Highi degree of accuracy is a large amount of produces and fast requirement process time in order to satisfy, and housing is formed through injection moulding by resin material.Usually in the injection molded process, under high temperature and high pressure environment, to the mould inside injecting molten resin, keep making its cooling after the internal pressure, die sinking obtains the moulding article after taking out.In this process, as shown in Figure 7, the cooling earlier of outside 101 (that is, the part that contact with die face in the melting resin) of melting resin, cool off melting resin inner 102 (that is, in the melting resin with mould contact surface distance part far away) back.Therefore, in forming process, there is melting resin outside 101 also uncured stage of cooling curing and melting resin inner 102.In this stage, inner 102 volume shrinkages of melting resin that are not cooled and solidify have formed the shape 103 (also being called as " shrink ") of surperficial depression.Thereby produce reject in process of production, thereby cause waste, increase cost.
In order to prevent in resin injection molded process, to shrink, JP 2007-224779 discloses a kind of fan motor housing, has formed the glue portion that subtracts at four flange portions of this housing.Fig. 8 shows base portion 2, stator vane 4 and the housing 6 that forms through injection moulding with the mode of one with resin material.Base portion 2 is used for support motor, and is connected to housing 6 through 11 stator vanes 4.Housing 6 respectively comprises four flange portions 62 in upper-end surface and lower end surface, in each flange portion 62, is provided with a mounting hole 64 and two and subtracts glue portion 66.
Yet, subtract glue portion 66 and do not run through flange portion 62, shown in Fig. 9 (along the sectional drawing of B-B line among Fig. 8).The problem of the axial warpage that shrink that therefore, occurs at flange portion and shrink cause is solved yet fully.
The model utility content
The purpose of the utility model just provides a kind of blower-casting, can solve flange portion fully and problems such as shrink and warpage occur.
According to an aspect of the utility model, a kind of blower-casting, this housing comprises: the chamber has center line; And upper-end surface and lower end surface, be formed with the flange portion that extends radially outwardly respectively, wherein at least one flange portion has the glue portion that subtracts of axially running through said flange portion.Like this, can prevent on the one hand to shrink, the distortion of resins such as warpage improves product percent of pass, can reduce the use amount of resin on the other hand, reduces production costs.
According to the utility model on the other hand, a kind of fan comprises above-mentioned blower-casting.
Description of drawings
From the description of the exemplary that provides below in conjunction with accompanying drawing, can be expressly understood the above-mentioned of the utility model and other aspects, feature and advantage, in said accompanying drawing:
Fig. 1 shows the sectional view of fan of first embodiment of the utility model;
Fig. 2 is the plan view of the fan of Fig. 1;
Fig. 3 is the sectional drawing of A-A line among Fig. 2, illustrates to subtract glue portion and run through flange portion;
Fig. 4 shows the sectional view of fan of second embodiment of the utility model;
Fig. 5 is the plan view of the fan of Fig. 4;
Fig. 6 is the sectional drawing of A-A line among Fig. 5, illustrates to subtract glue portion and run through flange portion and have groove;
Fig. 7 is the schematic representation that shrink appears in the blower-casting of existing technology;
Fig. 8 is the stereogram of the blower-casting of existing technology;
Fig. 9 is the sectional drawing along B-B line among Fig. 8, illustrates to subtract glue portion and do not run through flange portion.
Embodiment
Hereinafter will specifically describe the embodiment of the blower-casting of the utility model with reference to accompanying drawing.In institute's drawings attached, same parts or structure will use identical reference character to represent.Accompanying drawing is not necessarily drawn in proportion.Should be appreciated that following embodiment and accompanying drawing only are illustrative, should not be regarded as the scope of restriction the utility model.
The language of the expression direction of being mentioned in this specification such as upper and lower, interior and outer only is for according to the illustrative embodiment exemplarily of the orientation in the accompanying drawing, is not intended to limit the utility model.The statement that persons of ordinary skill in the art may appreciate that this specification concerned direction hereinafter described can change according to the real work position.
Fig. 1 shows the sectional view of fan of first embodiment of the utility model.Fig. 2 is the plan view of the fan of Fig. 1.Fig. 3 is the sectional view of A-A line among Fig. 2.
Fan comprises housing 1, base portion 2, rib 3, impeller 4 and motor.The base portion 2 that is placed with motor on it is roughly disc-shape, is fixed on the housing 1 through a plurality of ribs 3 that extend on the housing 1 from base portion 2.Usually, housing 1, base portion 2 and rib 3 are formed through injection moulding by the mode of resin material with one.It will be understood by those skilled in the art that rib 3 can be replaced by stator vane,, increase cooling effect motor so that more air-flow to be provided to motor internal.Base portion 2 heart place therein is formed with the bearing housing 2a of roughly tubular with bottom, in bearing housing 2a, has been press-fitted radial bearing 5.Axle 6 is supported by radial bearing 5 rotationally.Stator 7 as a motor part is supported on the periphery of bearing housing 2a.Stator 7 comprises stator core 71, insulator 72, coil 73 and circuit board 74.Stator core 71 is surrounded by the insulator that is formed by insulating material 72, and coil 73 insulation ground are around stator core 71, and insulator 72 is between them.The driving of control impeller 4 and the circuit board 74 of rotation are arranged in the bottom of insulator 72, and the diameter of the external diameter of circuit board 74 and base portion 2 is roughly the same.Circuit board 74 is connected to an end of coil 73, and is linked to each other with power supply by lead 8.Impeller 4 has a plurality of blade 4a, and is fixed on the axle 6.On the interior perimeter surface of impeller 4, be provided with rotor rack 9, on the interior weekly form of rotor rack 9, be provided with rotor magnet 10 as a motor part.This rotor magnet 10 is relative along radial direction with stator core 71.When by power supply through lead 8 and circuit board 74 when coil 73 provides electric current; The magnetic field interaction that the magnetic field that stator core 71 produces and the rotor magnet 10 that obtains multistage magnet by being magnetized form and the moment that on impeller 4, rotates makes impeller 4 around axle 6 rotations as rotatingshaft thus.During impeller 4 rotated, blade 4a promoted air downwards, produced roughly the air-flow along axial direction thus.
In addition, at least one flange portion 14 is provided with at least one axially with its glue portion that subtracts of running through.Preferably, in each flange portion 14 of upper-end surface 12 and lower end surface 13, be provided with two run through subtract 16a of glue portion and 16b, referring to Fig. 2 and Fig. 3.In other embodiments, can on each flange portion, be provided with one or more and subtract glue portion.In other embodiment, on each flange portion 14, be provided with the glue portion that subtracts of varying number.The shape that subtracts glue portion can be triangle, quadrilateral, other polygonals, ellipse or circle etc.Art technology should be understood that the layout that subtracts glue portion in the flange portion 14 of lower end surface 13 can arrange with the glue portion that subtracts in the flange portion 14 of upper-end surface 12 identical or different, for example in quantity, shape, size or whether run through aspect the flange portion.For example, flange portion is not run through in the glue portion that subtracts of all or part of flange portion of lower end surface, and flange portion is run through in the glue portion that subtracts of all or part of flange portion of upper-end surface, and is perhaps opposite.
In the utility model preferred embodiment; At at least one flange portion; Some is whole flange portions, housing 1 can also be included in two subtract between the glue portion radially extend and between upper-end surface 12 and lower end surface 13 axially extended strengthening rib 17, be used to increase the intensity of flange portion.Subtracting 16a of glue portion and 16b can be with respect to the line J-J ' symmetry of the center line of center line that passes chamber 11 and mounting hole 15.As shown in Figure 2, subtract 16a of glue portion and 16b and can be arranged to the radially inner side that is positioned at mounting hole 15.Certainly, also subtracting 16a of glue portion and 16b can be arranged to the radial outside that is positioned at mounting hole 15 or be positioned on the circumference with roughly the same radius with mounting hole 15.The subtract 16a of glue portion and 16b on the flange portion 14 can be with roughly the same with respect to the spatial volume that subtracts 16a ' of glue portion and 16b ' on the flange portion 14 ' of the center line symmetry (in this embodiment, being the diagonal angle) in chamber 11.For example, subtract the 16a of glue portion and subtract the 16a ' of glue portion and have identical spatial volume, and subtract the 16b of glue portion and subtract the 16b ' of glue portion and have identical spatial volume; Perhaps these four subtract the 16a of glue portion, 16b, and 16a ' and 16b ' have identical spatial volume.
Fig. 4 shows the sectional view of fan of second embodiment of the utility model.Fig. 5 is the plan view of the fan of Fig. 1.Fig. 6 is the sectional drawing of A-A line among Fig. 2.In this embodiment, adopt identical reference character with parts identical in first embodiment.For for purpose of brevity, the part no longer repeat specification identical with first embodiment.
In second embodiment of the utility model, subtract glue portion and can also be configured to allow provide the lead 8 of electric current to pass to motor, draw to the outside of housing 1 from motor.Referring to Fig. 4 and Fig. 6, the lead that is connected with circuit board 74 8 extracts from motor, extends radially outwardly into outside along the axial below of rib 3.Owing between the blade 4a of enclosure interior and lead 8, have rib 3, so keep certain distance between blade 4a and the lead 8, prevent that them from interfering each other.Said housing can be provided with groove 80 in the flange portion 14 of lower end surface 13, this groove leads to the glue portion that subtracts in this flange portion.Lead 8 is accommodated in the groove 80 and along this groove and extends, and passes the glue portion that subtracts, and derives from housing.The degree of depth of groove 80 can be configured to make and is contained in the lower end surface that wherein lead 8 does not exceed housing on axially, be convenient to the installing and locating of housing like this.Except groove 80, rib 3 also can comprise the otch that holds lead 8 at its lower surface, and the size of this otch is confirmed as and makes and to be contained in the lower end surface 13 that wherein lead 8 does not exceed housing on axially.
It will be understood by those skilled in the art that the lead 8 of deriving from housing can continue across the glue portion that subtracts or other the suitable parts the flange portion of upper-end surface 12.For example, as required, can comprise otch on the housing, be convenient to lead and therefrom pass.This otch can be arranged on flange portion or other parts.In the embodiment depicted in fig. 5, of being arranged in the flange portion of a kerf 90 subtracts Jiao Bushang.
Though not shown, in other embodiments, subtracting glue portion can communicate and fuse with mounting hole 15, glue portion that subtracts that promptly is integral and mounting hole both can prevent to shrink, but fastening piece such as mounting screw again.Perhaps, do not communicate and fuse with mounting hole 15 even subtract glue portion, according to the restriction of mounting point, mounting hole possibly can't insert fastening piece sometimes, uses as mounting hole and possibly need to subtract glue portion, and makes fastening piece from wherein passing.Flange portion is axially run through in the glue portion that subtracts in the utility model, and therefore can be used as mounting hole and uses.Because of the existence of stiffening rib, the glue portion that subtracts that uses as mounting hole also has higher intensity.
The blower-casting of the utility model has the following advantages.
The blower-casting of the utility model comprises the chamber, has center line; And upper-end surface and lower end surface, be formed with the flange portion that extends radially outwardly, wherein at least one flange portion has the glue portion that subtracts of axially running through said flange portion.Like this, can prevent on the one hand to shrink, the distortion of resins such as warpage improves product percent of pass, can reduce the use amount of resin on the other hand, reduces production costs.
In an exemplary of the utility model, each flange portion all has two and subtracts glue portion.Like this, both can prevent to shrink, and can avoid again punching and causing the reduction of flange portion intensity owing to opening one.
In an exemplary of the utility model; Each flange portion all has mounting hole; Said mounting hole has center line, and each flange portion said subtracts glue portion with respect to the horizontal line symmetry of the center line of center line that passes said chamber and said mounting hole.Like this, can keep the weight balancing of blower-casting.
In an exemplary of the utility model, said housing also is included in two of each flange portion and subtracts between the glue portion and radially extend and axially extended strengthening rib between upper-end surface and lower end surface.Can increase the intensity of flange portion like this.
In an exemplary of the utility model, the said glue portion that subtracts is arranged to the radially inner side that is positioned at said mounting hole.Can increase the intensity of flange portion like this.
In an exemplary of the utility model, a flange portion said subtracts glue portion and has identical spatial volume with the said glue portion that subtracts with respect to another flange portion of the center line symmetry in chamber.Can keep the weight balancing of blower-casting like this.
In an exemplary of the utility model, at least one subtracts glue portion and is configured to allow the motor to fan to provide the lead of electric current to pass.Can guarantee the derived channel of lead like this.
In an exemplary of the utility model, in the lower end surface of said flange portion the groove that radially extends is set, be used to hold the lead that electric current is provided to the motor of fan.The convenient like this lead of arranging.
In an exemplary of the utility model, said glue portion and the said mounting hole of subtracting is configured to be interconnected and is integral.Can reduce the manufacturing procedure number like this, boost productivity.
It is understandable that present disclosure is not limited to above-mentioned embodiment.Under the situation of spirit that does not depart from the present disclosure appended claims and scope, can carry out multiple modification and transformation to present disclosure.
Claims (11)
1. a blower-casting (1) is characterized in that, this housing comprises:
Chamber (11) has center line; And
Upper-end surface (12) and lower end surface (13) are formed with the flange portion (14) that extends radially outwardly respectively,
Wherein at least one flange portion have the glue portion that subtracts of axially running through this flange portion (16a, 16b).
2. blower-casting according to claim 1 (1) is characterized in that, each flange portion (14) all have two subtract glue portion (16a, 16b).
3. blower-casting according to claim 1 and 2 (1); It is characterized in that; Each flange portion (14) all has mounting hole (15); Said mounting hole has center line, and each flange portion (14) said subtracts glue portion, and (16a is 16b) with respect to the line of the center line of center line that passes said chamber (11) and said mounting hole (15) (J-J ') symmetry.
4. blower-casting according to claim 2 (1); It is characterized in that; Said housing (1) also is included in two of each flange portion (14) and subtracts glue portion (16a radially extends and axially extended strengthening rib (17) between upper-end surface (12) and lower end surface (13) between 16b).
5. blower-casting according to claim 1 and 2 (1) is characterized in that, saidly subtracts glue portion (16a 16b) is arranged to the radially inner side that is positioned at said mounting hole (15).
6. blower-casting according to claim 1 and 2 (1); It is characterized in that; A flange portion (14) said subtract glue portion (16a, 16b) with subtract glue portion (16a ', 16b ') with respect to another flange portion (14 ') of the center line symmetry in chamber said and have identical spatial volume.
7. blower-casting according to claim 1 and 2 (1) is characterized in that, at least one subtracts glue portion and is configured to allow provide the lead (8) of electric current to pass to the motor of fan.
8. blower-casting according to claim 7 (1) is characterized in that, in the lower end surface of said flange portion the groove that radially extends is set, and is used to hold the lead that electric current is provided to the motor of fan.
9. blower-casting according to claim 1 and 2 (1) is characterized in that, said glue portion and the said mounting hole of subtracting is configured to be interconnected and is integral.
10. blower-casting according to claim 1 and 2 (1) is characterized in that, the said glue portion that subtracts is configured as mounting hole, is used for fastening piece from wherein passing.
11. a fan is characterized in that, said fan comprises each described blower-casting in the aforesaid right requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120266296 CN202158015U (en) | 2011-07-25 | 2011-07-25 | Fan casing and fan comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120266296 CN202158015U (en) | 2011-07-25 | 2011-07-25 | Fan casing and fan comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202158015U true CN202158015U (en) | 2012-03-07 |
Family
ID=45765655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120266296 Expired - Fee Related CN202158015U (en) | 2011-07-25 | 2011-07-25 | Fan casing and fan comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202158015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900704A (en) * | 2011-07-25 | 2013-01-30 | 日本电产株式会社 | Fan housing and fan with same |
| CN104684321A (en) * | 2013-11-26 | 2015-06-03 | 深圳市海洋王照明工程有限公司 | Shell assembly structure |
-
2011
- 2011-07-25 CN CN 201120266296 patent/CN202158015U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900704A (en) * | 2011-07-25 | 2013-01-30 | 日本电产株式会社 | Fan housing and fan with same |
| CN104684321A (en) * | 2013-11-26 | 2015-06-03 | 深圳市海洋王照明工程有限公司 | Shell assembly structure |
| CN104684321B (en) * | 2013-11-26 | 2019-05-28 | 深圳市海洋王照明工程有限公司 | Casing assembling structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20200725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |