CN1320727C - Motor axle tube assembly - Google Patents
Motor axle tube assembly Download PDFInfo
- Publication number
- CN1320727C CN1320727C CNB031574157A CN03157415A CN1320727C CN 1320727 C CN1320727 C CN 1320727C CN B031574157 A CNB031574157 A CN B031574157A CN 03157415 A CN03157415 A CN 03157415A CN 1320727 C CN1320727 C CN 1320727C
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- China
- Prior art keywords
- central siphon
- motor
- axle sleeve
- bearing
- assembly according
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Abstract
The present invention relates to an axle tube assembly of a motor, which provides a motor component having the advantages of enhancement of assembling reliability, maintenance of the rotating balance stability of the rotor, extension of the service life of a motor. The axle tube assembly of a motor comprises an axle tube and an axle sleeve, wherein the axle tube is arranged on the casing seat of the motor, and the inner part and the periphery of the axle tube are respectively combined with a motor bearing and a stator group; the axle sleeve is tightly matched and combined in the axle tube and is clamped and supported with the axle tube to position the bearing.
Description
Technical field
The invention belongs to motor component, particularly a kind of motor central siphon assembly.
Background technology
As shown in Figure 1 and Figure 2, the group establish commonly use central siphon 11 ' fan comprise shell block 10 ', bearing 20 ', stator pack 30 ', circuit board 31 ' and rotor 40 '.
The central authorities of central siphon 11 ' one-body molded formation shell block 10 '.
Central siphon 11 ' inwall forms end difference 111 ', is provided with several in central siphon 11 ' top and enlarges flexible grooving 112 ' so as to making its tool.Bearing 20 ' group is established in the central siphon 11 ', and utilizes fixed cover 113 ' to be sheathed on the end difference 111 ' of central siphon 11 ' inwall, increasing the reliability of bearing 20 ' assembling, and then firmly wears the axostylus axostyle 41 ' in conjunction with rotor 40 '.
Moreover, the outer wall of central siphon 11 ' form at least one pair of should and so as to the fin 114 ' of clip, to increase the stability of stator pack 30 ' assembling in conjunction with several grooves 31 ' in the stator pack 30 ' axis hole.
Stator pack 30 ' is provided with several feets 32 ' so as to combined circuit plate 31 '.
When finishing assembling, but the external diameter on fixed cover 113 ' elasticity amplification central siphon 11 ' top, thus avoid stator pack 30 ' to break away from central siphon 11 '.
Though, the above-mentioned central siphon 11 ' of commonly using has simple in structure, assembling easily, and can reduce manufacturing cost, yet, the motor that group is established known central siphon 11 ' only utilizes fixed cover 113 ' to keep the assembled relation of bearing 20 ', stator pack 30 ' and circuit board 31 ', not only there is the low shortcoming of assembling reliability, and on reality is used, remain at following other problems, for example: when bearing 20 ' directly being incorporated into and existed the central siphon 11 ' of high tolerance nargin to go up between it, cause bearing 20 ' easily along with the axostylus axostyle 41 ' of rotor 40 ' rotates; On the other hand, bearing 20 ' is directly combined closely when central siphon 11 ' is gone up at auxiliary time that lacks location structure, it also may cause the axle center of axostylus axostyle 41 ' of central siphon 11 ', bearing 20 ' and rotor 40 ' inconsistent, thereby influences rotational stability and because of rotating the unbalance noise that produces.Moreover break away under the situation of central siphon 11 ' lacking the auxiliary fixed cover 113 ' that prevents of position limiting structure, when rotor 40 ' running causes axostylus axostyle 41, when axially shaking, axostylus axostyle 41 ' terminal clasp 21 ' may axially push bearing 20 ' and fixed cover 113 ', breaks away from central siphon 11 '.In addition, have excessive slit between assembling rear axle tube 11 ' and rotor 40 ', its dust that also causes air-flow to be carried secretly enters bearing 20 ' easily, thereby influences the oil lubrication degree of bearing 20 ', and then reduces the rotating speed of rotor 40 '.
Therefore, when motor unit is established the central siphon commonly used 11 ', may cause assembling reliability deficiency, rotate unbalance, produce noise, reduce problem such as useful life, even because of stator pack member accidental release, thereby shorten useful life of motor.
Summary of the invention
The purpose of this invention is to provide and a kind ofly improve the assembling reliability, keep the rotor rotation stability of equilibrium, increase the motor motor central siphon assembly in useful life.
The present invention comprises central siphon and axle sleeve; Central siphon is located on the motor shell block, its internal and external circumferential power respectively motivation bearing and stator pack combination; Axle sleeve closely cooperates and is incorporated in the central siphon, and shores so as to location bearing with the mutual cramping of central siphon.
Wherein:
Central siphon is shaped on the motor shell block.
The bottom outward radial of central siphon is convexly equipped with several combined blocks, and the bottom correspondence of the hollow cylinder of described motor shell block is arranged with several engagement grooves, and the corresponding clip of the combined block of described central siphon is in conjunction with the engagement groove of described hollow cylinder.
The central siphon first half is provided with several combination arms, and between two adjacent combination arms, form make the combination arm have a support, in the flexible open slot that contracts.
The end outward radial of combination arm is convexly equipped with the hook portion so as to clip fixed stator group.
Axle sleeve top upward axis is outside extending the central siphon top, to dwindle the axle sleeve top to the slit between rotor.
Be provided with locating ring in the central siphon, and the rotor shaft bottom is provided with annular groove, described locating ring corresponding to the annular groove of described rotor shaft bottom and be located in central siphon and the axle sleeve bottom between.
Be folded with so as to shoring the top bracing member of rotor shaft between central siphon and the axle sleeve bottom.
Axle sleeve is provided with the base of establishing for the locating ring folder.
Top bracing member forms room, and described room holds wear plate and stores lubricating oil.
Top bracing member forms end difference, and is provided with locating ring in the described central siphon, and described end difference is for the described locating ring of carrying.
Bearing in the axle sleeve is selected from oiliness bearing, self-lubricating bearing, copper bearing or sintered bearing.
Axle sleeve is provided with the base of establishing for the top bracing member folder.
Because the present invention comprises central siphon and axle sleeve; Central siphon is located on the motor shell block, its internal and external circumferential power respectively motivation bearing and stator pack combination; Axle sleeve closely cooperates and is incorporated in the central siphon, and shores so as to location bearing with the mutual cramping of central siphon.During with assembling motor of the present invention, at first stator pack and circuit board group zoarium tentatively are incorporated on the hollow cylinder of shell block, bearing is inserted in the axle sleeve; Subsequently the axle sleeve tight fit is incorporated in the central siphon, utilize the mutual cramping of axle sleeve and central siphon to shore, can make inside tight fit combination of axle sleeve and location bearing, and, can prevent that not only the relative central siphon of axle sleeve itself from rotating by the tight fit relation that has sufficient intensity between axle sleeve and the central siphon; If when the central siphon that makes has slightly high tolerance nargin, the bearing tight fit is incorporated in the central siphon by axle sleeve; Certain reliability and stability that increases the bearing assembling, and can and then promote rotor rotation stability and avoid unbalance and the generation noise; Promptly can promote the assembling reliability really, keep rotor spin balancing and rotational stability and not only improve the assembling reliability, keep the rotor rotation stability of equilibrium, and increase motor useful life, thereby reach purpose of the present invention by axle sleeve.
Description of drawings
Fig. 1, establish the motor decomposition texture schematic isometric of commonly using central siphon for group.
Fig. 2, establish the motor decomposition texture schematic sectional view of commonly using central siphon for group.
Fig. 3, for decomposition texture schematic isometric of the present invention.
Fig. 4, for structural representation stereogram of the present invention.
Fig. 5, be A-A cutaway view among Fig. 4.
Fig. 6, establish electric motor structure schematic sectional view of the present invention for group.
Fig. 7, for decomposition texture schematic isometric of the present invention (central siphon directly is shaped on the shell block).
Fig. 8, for structural representation stereogram of the present invention (central siphon directly is shaped on the shell block).
Fig. 9, be B-B cutaway view among Fig. 8.
Figure 10, establish electric motor structure schematic sectional view of the present invention for group.
Figure 11, be decomposition texture schematic isometric of the present invention (axle sleeve be directly overlap).
Figure 12, be structural representation cutaway view of the present invention (axle sleeve be directly overlap).
Embodiment
As shown in Figure 3, the present invention comprises central siphon 11, axle sleeve 12, locating ring 13, top bracing member 14 and wear plate 15.
As Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, central siphon 11 is preferable to be made by plastic material, its bottom outward radial be convexly equipped with number corresponding and with the combined block 111 of motor shell block 10 hollow cylinders 101 bottom engagement grooves 102 clips, it can be elongated or L shaped.The first half of central siphon 11 is provided with several combination arms 112, and forms open slot 114 between two adjacent combination arms 112 so that several combination arms 112 have a support, in the elasticity that contracts.End outward radial in combination arm 112 is convexly equipped with hook portion 113, for clip location stator pack 30.Be convexly equipped with several cushion blocks 115 in central siphon 11 bottom interior wall symmetries.
Locating ring 13 upwards breaks away from bearing 20 corresponding to the annular groove 411 of rotor 40 axostylus axostyles 41 bottoms so as to avoiding axostylus axostyle 41.
During assembling, as shown in Figure 5, the top bracing member 14 that is installed with wear plate 15 and carrying locating ring 13 is mounted in the central siphon 11 and places on several cushion blocks 115, axle sleeve 12 tight fits are incorporated in the central siphon 11, so that the end difference 142 of top bracing member 14 is located between the base 120 of several cushion blocks 115 of central siphon 11 and axle sleeve 12, so that locating ring 13, top bracing member 14 and wear plate 15 have enough assemble stable and reliability.
During with assembling motor of the present invention, as shown in Figure 6, at first stator pack 30 and circuit board 31 assemblys tentatively are incorporated on the hollow cylinder 101 of shell block 10, again with central siphon 11 of the present invention by in the last hollow cylinder 101 that up inserts shell block 10, at this moment, central siphon 11 is incorporated into the several combined blocks 111 in several engagement grooves 102 of hollow cylinder 101 bottoms by tight clip, rotate relative to shell block 10 to prevent central siphon 11.Simultaneously, hollow cylinder 101 and stator pack 30 are crossed by 113 in an ancient unit of weight portion of central siphon 11 from bottom to top elasticity, and clip is in stator pack 30 axis hole peripheries, with the assembly of fixed stator group 30 and circuit board 31.Then, locating ring 13, top bracing member 14 and wear plate 15 are inserted in the central siphon 11, and bearing 20 is inserted in the axle sleeve 12.Subsequently axle sleeve 12 tight fits are incorporated in the central siphon 11.So, locating ring 13, top bracing member 14 and wear plate 15 firmly are folded between several cushion blocks 115 of the base 120 of axle sleeve 12 and central siphon 11, at last, make the axostylus axostyle 41 of rotor 40 pass bearing 20 and locating ring 13, and stay on top bracing member 14 and the wear plate 15, so, promptly finish the assembling of motor.
As shown in Figure 5, after axle sleeve 12 tight fits snap in the central siphon 11, utilize the axle sleeve 12 and the mutual cramping of central siphon 11 to shore, can make axle sleeve 12 inside tight fits combination and location bearings 20, and the combination arm 112 of central siphon 11 also outwards bullet open, with tight fit in conjunction with and snaps into position stator pack 30.Simultaneously, owing to have the tight fit relation of sufficient intensity between axle sleeve 12 and the central siphon 11, therefore, the present invention can prevent that not only axle sleeve 12 central siphons 11 relatively own from rotating, and can prevent that axle sleeve 12, locating ring 13, top bracing member 14 and top abrasive disc 15 upwards break away from central siphon 11.Moreover, owing to set up axle sleeve 12,, bearing 20 tight fits are incorporated in the central siphon 11 by axle sleeve 12 even when therefore the central siphon 11 that makes has slightly high tolerance nargin.As a result, central siphon 11, axle sleeve 12 and hook portion 113 increase the assembling reliability and the stability of bearing 20 and stator pack 30 really, and can and then promote rotor 40 rotational stabilities and avoid unbalance and the generation noise.
As shown in Figure 6, axle sleeve 12 tops can select upward axis outside extending the central siphon top, dwindling the slit of axle sleeve 12 tops to 40 of rotors, and then avoid dust to enter bearing 20, increase the useful life of bearing 20 whereby.
Bearing 20 preferable oiliness bearing, self-lubricating bearing, copper bearing or the sintered bearings of being selected from, and in top bracing member 14 rooms 141, store lubricating oil, so as to increasing the useful life of bearing 20.
As Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, central siphon 11a directly is shaped on the shell block 10, to reduce the quantity of assembled component.Moreover it can make central siphon 11a and axle sleeve 12 and bearing 20 form more firm tight fit marriage relation equally, increasing the assembling reliability and the stability of bearing 20 and stator pack 30, and can and then promote rotor 40 rotational stabilities and avoids unbalance generation noise.Moreover axle sleeve 12 tops can select upward axis outside extending central siphon 11a top, enter bearing 20 to avoid dust, increase the useful life of bearing 20 whereby.
As Figure 11, shown in Figure 12, central siphon 11a directly is shaped on the shell block 10, to reduce the quantity of assembled component.Axle sleeve 12a is for omitting the straight cover of base.So, the present invention only need select the bearing 20 of suitable specification for use after assembling, and its root edge and central siphon 11a that locating ring 13, top bracing member 14 and wear plate 15 firmly can be folded in axle sleeve 12a, bearing 20 equally counts between the cushion block 115.
As mentioned above, the shortcoming that establish with group that the motor assembling of commonly using central siphon 11 ' is reliably low, rotor 40 ' rotational stability deficiency and dust enters bearing 20 ' easily.And the present invention can promote the assembling reliability really, keep rotor 40 spin balancings and rotational stability by the hook portion 113 on axle sleeve 12 (12a) and the central siphon 11 (11a), and increase by 20 useful lifes of bearing, and also make the applicable small-sized brushless DC motor of oiliness bearing, self-lubricating bearing, copper bearing or sintered bearing.
Claims (13)
1, a kind of motor central siphon assembly, it comprises central siphon; Central siphon is located on the motor shell block, its internal and external circumferential power respectively motivation bearing and stator pack combination; It is characterized in that closely cooperating in the described central siphon is combined with axle sleeve, and the mutual cramping of axle sleeve and central siphon is shored so as to location bearing.
2, motor central siphon assembly according to claim 1 is characterized in that described central siphon is shaped on the motor shell block.
3, motor central siphon assembly according to claim 1, the bottom outward radial that it is characterized in that described central siphon is convexly equipped with several combined blocks, and the bottom correspondence of the hollow cylinder of described motor shell block is arranged with several engagement grooves, and the corresponding clip of the combined block of described central siphon is in conjunction with the engagement groove of described hollow cylinder.
4, according to claim 2 or 3 described motor central siphon assemblies, it is characterized in that the described central siphon first half is provided with several combination arms, and between two adjacent combination arms, form make the combination arm have a support, in the flexible open slot that contracts.
5, motor central siphon assembly according to claim 4, the end outward radial that it is characterized in that described combination arm is convexly equipped with the hook portion so as to clip fixed stator group.
6, motor central siphon assembly according to claim 1 is characterized in that described axle sleeve top upward axis outside extending the central siphon top, to dwindle the axle sleeve top to the slit between rotor.
7, motor central siphon assembly according to claim 1 is characterized in that being provided with locating ring in the described central siphon, and the rotor shaft bottom is provided with annular groove, described locating ring corresponding to the annular groove of described rotor shaft bottom and be located in central siphon and the axle sleeve bottom between.
8, motor central siphon assembly according to claim 1 is characterized in that being folded with so as to shoring the top bracing member of rotor shaft between described central siphon and the axle sleeve bottom.
9, motor central siphon assembly according to claim 7 is characterized in that described axle sleeve is provided with the base of establishing for the locating ring folder.
10, motor central siphon assembly according to claim 8 is characterized in that described top bracing member forms room, and described room holds wear plate and stores lubricating oil.
11, motor central siphon assembly according to claim 8 is characterized in that described top bracing member forms end difference, and is provided with locating ring in the described central siphon that described end difference is for the described locating ring of carrying.
12, motor central siphon assembly according to claim 1 is characterized in that the bearing in the described axle sleeve is selected from oiliness bearing, self-lubricating bearing, copper bearing or sintered bearing.
13, motor central siphon assembly according to claim 8 is characterized in that described axle sleeve is provided with the base of establishing for the top bracing member folder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031574157A CN1320727C (en) | 2003-09-19 | 2003-09-19 | Motor axle tube assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031574157A CN1320727C (en) | 2003-09-19 | 2003-09-19 | Motor axle tube assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1599200A CN1599200A (en) | 2005-03-23 |
| CN1320727C true CN1320727C (en) | 2007-06-06 |
Family
ID=34660292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031574157A Expired - Fee Related CN1320727C (en) | 2003-09-19 | 2003-09-19 | Motor axle tube assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1320727C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011083868A1 (en) * | 2011-09-30 | 2013-04-04 | Robert Bosch Gmbh | Cooling circuit pump for a motor vehicle |
| GB2563612B (en) * | 2017-06-20 | 2020-09-23 | Dyson Technology Ltd | An electric motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2376130Y (en) * | 1999-05-14 | 2000-04-26 | 台达电子工业股份有限公司 | Motor |
| US6097121A (en) * | 1995-10-06 | 2000-08-01 | Nidec Corporation | Spindle motor design facilitating and ensuring precise assembly of the motor |
| CN1281284A (en) * | 1999-07-02 | 2001-01-24 | 建准电机工业股份有限公司 | Electric motor with improved locating structure of rotor |
-
2003
- 2003-09-19 CN CNB031574157A patent/CN1320727C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6097121A (en) * | 1995-10-06 | 2000-08-01 | Nidec Corporation | Spindle motor design facilitating and ensuring precise assembly of the motor |
| CN2376130Y (en) * | 1999-05-14 | 2000-04-26 | 台达电子工业股份有限公司 | Motor |
| CN1281284A (en) * | 1999-07-02 | 2001-01-24 | 建准电机工业股份有限公司 | Electric motor with improved locating structure of rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1599200A (en) | 2005-03-23 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: The new Taiwan China Ya Lu Kaohsiung City No. 30 Lane 296 Patentee after: Sunonwealth Electric Machine Industry Co.,Ltd. Address before: Kaohsiung City, Taiwan, China Patentee before: Sunonwealth Electric Machine Industry Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |