CN106329799A - Motor sealing structure and motor - Google Patents
Motor sealing structure and motor Download PDFInfo
- Publication number
- CN106329799A CN106329799A CN201610917667.7A CN201610917667A CN106329799A CN 106329799 A CN106329799 A CN 106329799A CN 201610917667 A CN201610917667 A CN 201610917667A CN 106329799 A CN106329799 A CN 106329799A
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- China
- Prior art keywords
- motor
- face
- casing
- end cap
- groove
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 32
- 230000002093 peripheral effect Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 239000000084 colloidal system Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 14
- 239000003292 glue Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a motor sealing structure. The motor sealing structure has the advantages that the end of an original iron core is subjected to insulating treatment such as plastic package and glue filling to form a boss which serves as a male end of an original motor, and a minimum distance L1 or L2 between the original iron core and an end cover is eliminated, so that on one hand, the male end serves as a male end of an original end cover with an O-type seal ring for sealing, a distance L3 between a stator and the end cover is shortened, and the motor length is further shortened; on the other hand, the male end is formed in the insulating end of the iron core, a minimum wall thickness H1 of the end cover is increased indirectly by means of reducing the outer diameter of the male end of the motor, and strength reliability of parts and components of the motor is improved; adopting axial sealing for the O-type seal ring is ensured, so that the O-type seal ring is protected from being scratched. The invention further discloses the motor applying the motor sealing structure.
Description
Technical field
The present invention relates to motor protection technical field, particularly to a kind of motor sealing structure and motor.
Background technology
The motor that degree of protection is higher, it will usually select O-ring seals to seal, between motor case 01 and end cap 02
Using O-ring seals to seal, its sealing means is usually static seal, and stressing conditions when installing according to O-ring seals will
It is divided into tangential and axial type, the most as illustrated in figs. ia and ib.
According to the structure shown in Fig. 1, either tangential or axial type sealing, in order to make O-ring seals be in one
Individual completely enclosed region, devises the fit structure of seam between end cap 02 and casing 01, the most just create a problem:
Owing to seam is combined with length requirement, as shown in Figures 2 and 3, the stator core of the effect length of L1 Yu L2 is in the casing 01
Rigging position, the length of the extreme position L3 that stator is installed in casing 01 >=L1 (or L2).
Furthermore, seal according to axial type O-ring seals, due to casing 01 seam size φ D2 ＞ φ D1 so that motor exists
In the case of having same trench size, end cap 02 can produce the hidden danger of minimum wall thickness (MINI W.) H1 can become big, as shown in Figure 4.
In sum, there is following point in conventional art: stator installation site L3 is the biggest, the installation of stator motor the most dorsad
Position at end cap, motor internal space availability ratio is relatively low, causes motor overall length under same case the longest with this；Tangential simultaneously
O-ring seals can cause O-ring seals surface to be scratched by casing when motor is installed, and causes the leakage efficiency of O-ring seals to drop
Low；Axial seal is due to the restriction of seam size so that end cap can produce minimum wall thickness (MINI W.) H1, is unfavorable for the processing of end cap, reduces
The intensity of end cap.
Summary of the invention
In view of this, the invention provides a kind of motor sealing structure, decrease the distance between stator and end cap, improve electricity
Machine inner space utilization rate, shortens the length of motor；Ensure that O-ring seals still uses the mode of axial seal, prevent O shape close
Seal is scratched；Simultaneously by reducing motor seam outside dimension, indirectly can improve the thickness at end cap minimum wall thickness (MINI W.), improve
The processing difficulty of part and strength reliability.
Present invention also offers a kind of motor applying above-mentioned motor sealing structure.
For achieving the above object, the present invention provides following technical scheme:
A kind of motor sealing structure, including casing, end cap and stator；
The inner peripheral surface of described end cap and the intersection of its inner face are provided with stepped annular groove, described including being positioned at
First groove of inner face, and second groove adjacent with described first groove；
Described stator is provided with insulated end portions near one end of described end cap, and the outer peripheral face of described insulated end portions is provided with use
In the positioning boss with described second groove fit；
The outer peripheral face of the end face of described casing, the first groove of described end cap and described insulated end portions coordinates, and surrounds O shape close
The closed area of seal.
Preferably, described positioning boss is cylindrical boss structure, and described second groove is cylinder shape groove structure.
Preferably, the end face of the body of described stator is concordant with the end face of described casing.
Preferably, described insulated end portions outer peripheral face is near the Part I of its end face, with described end cap inner peripheral surface near it
The Part II matched in clearance of interior bottom face.
Preferably, the Part I of described insulated end portions outer peripheral face is the conical surface that its end face close is the least, in described end cap
The Part II of side face is the conical surface coordinated with described Part I.
Preferably, the end face of described insulated end portions coordinates with the inner bottom end clearance of described end cap.
Preferably, described insulated end portions is formed at the end of described stator by plastic packaging or process for filling colloid.
A kind of motor, is provided with sealing structure at the end cap of its housing and casing, described sealing structure is above-mentioned motor
Seal structure.
From above-mentioned technical scheme it can be seen that the motor sealing structure of present invention offer, set by the end at stator
Put the boss of insulation, coordinate with end cap, casing, substitute former end cap, casing seam, decrease the distance between stator and end cap, carry
High motor internal space availability ratio, shortens the length of motor；
Ensure that O-ring seals still uses the mode of axial seal, prevent O-ring seals to be scratched；
Meanwhile, by reducing motor seam outside dimension, indirectly can improve the thickness at end cap minimum wall thickness (MINI W.), improve zero
The processing difficulty of part and strength reliability.
Present invention also offers a kind of motor applying above-mentioned motor sealing structure, beneficial effect is the most aforementioned.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 a is the structural representation coordinating face O tangential to seal of prior art end cap and casing；
Fig. 1 b is the structural representation coordinating face O axial type to seal of prior art end cap and casing；
Fig. 2 a is the seam length of fit structural representation that in prior art, tangential seals；
Fig. 2 b is the seam length of fit structural representation that in prior art, axial type seals；
Fig. 3 is stator installation site structural representation in casing in prior art；
Fig. 4 is that in prior art, axial type seals the structural representation that there is minimum wall thickness (MINI W.) situation；
The close-up schematic view of the sealing structure that Fig. 5 provides for the embodiment of the present invention；
The overall structure schematic diagram of the motor that Fig. 6 provides for the embodiment of the present invention.
Wherein, in the prior art of Fig. 1-Fig. 4,01 is casing, and 02 is end cap, and 03 is stator；
In this programme of Fig. 5 and Fig. 6,11 is casing, and 12 is (front) end cap, and 13 is stator, and 131 is insulated end portions, 132
For positioning boss, 14 is O-ring seals, and 15 is electromagnetic wire, and 16 is skeleton, and 17 is bearing, and 18 is permanent magnet, and 19 is rotor, 20
For rear end cap, 21 is brake, and 22 is back cover, and 23 is position-detection sensor, and 24 is bearing.
Detailed description of the invention
The invention discloses a kind of motor sealing structure and motor, prevent O-ring seals from scratching when motor is installed,
Reduce the mounting distance between stator and end cap, reduce motor overall length, improve the thickness of end cap minimum wall thickness (MINI W.), reduce motor component
Difficulty of processing and improve part machining accuracy.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
The motor sealing structure that the embodiment of the present invention provides, its core improvement is, including casing 11, end cap 12 and fixed
Son 13, its structure is referred to shown in Fig. 5；
Wherein, the inner peripheral surface of end cap 12 and the intersection of its inner face are provided with stepped annular groove, including being positioned at
First groove of inner face, and second groove adjacent with the first groove, the second groove therein is as inner stopper；It is appreciated that
, the radial dimension of the second groove is bigger, i.e. deep than the first groove；
Stator 13 is provided with insulated end portions 131 near one end of end cap 12, and the outer peripheral face of this insulated end portions 131 is provided with use
In the positioning boss 132 with above-mentioned second groove fit, this positioning boss 132 is as male half coupling；
The outer peripheral face of the end face of casing 11, the first groove of end cap 12 and insulated end portions 131 coordinates, and surrounds O-ring seals
The closed area of 14, cross section is rectangle, and axial dimension is more than the diameter of O-ring seals 14.
From above-mentioned technical scheme it can be seen that the embodiment of the present invention provide motor sealing structure, by stator 13
End insulated end portions 131 is set, end cap that its positioning boss 132 overall dimensions, tolerance can coordinate according to actual needs and
Housing design, insulation insulated end portions 131 coordinates with end cap 12, casing 11, substitutes former end cap, casing seam so that former end cap is only
Mouthful size L1 or L2 are 0, eliminate former minimum spacing L1 or the L2 of stator core and end cap so that between unshakable in one's determination and end cap away from
From becoming L3, wherein L3 >=0, from improve motor internal space availability ratio；Due to stator core installation position in complete machine
Put the length comparing forward L1 or L2 of former scheme, so the overall length of motor can also shorten the length of L1 or L2 accordingly；
Meanwhile, the mode that former seam coordinates, due to seam size φ D2 ＞ φ D1, and use stator insulation end as only
Mouthful so that φ D2 size diminished more originally, under same trench size, improve the thickness of end cap minimum wall thickness (MINI W.) H1；
It addition, O-ring seals 14 compresses deformation between the counterface of both casing 11 and end cap 12, it is ensured that it is still
Use the mode of axial seal, prevent O-ring seals to be scratched.
This programme provide specific embodiment in, positioning boss 132 be cylindrical boss structure, including side periphery with
End plane, the second groove is cylinder shape groove structure, effectively be ensure that radially and axle by two cooperations being mutually perpendicular to face
To location.Certainly, those skilled in the art can also select other shapes of seam fit system, does not repeats them here.
As preferably, the end face of the body (i.e. its iron core) of stator 13 is concordant with the end face of casing 11 so that stator 13 ferrum
Distance between the heart and end cap 12 becomes 0, from maximization motor internal space availability ratio.With reference to Fig. 5, unshakable in one's determination and end cap spacing
L3=0, is equivalent to motor overall length and shortens L3 length.It is understood that the end face of said stator 13 body refers to that it is near end
That one end of lid 12, the end face of casing 11 refers to its that one end coordinated with end cap 12.
In order to optimize above-mentioned technical scheme further, insulated end portions 131 outer peripheral face near the Part I of its end face, with
End cap 12 inner peripheral surface is Part II matched in clearance of bottom face (bottom end face of end cap 12 inside center) in it.Such one
Come, just reduce this two-part requirement on machining accuracy, it is to avoid be not properly sized the assembly problem brought.
In the specific embodiment that this programme provides, the Part I of insulated end portions 131 outer peripheral face is near its end face gradually
The little conical surface, the Part II of end cap 12 inner peripheral surface is the conical surface coordinated with Part I.Its structure is referred to shown in Fig. 5,
So cone match mode can play guide effect when assembling.
As preferably, the end face of insulated end portions 131 coordinates with the inner bottom end clearance of end cap 12.So, just reduce
The requirement on machining accuracy of this both ends of the surface height, it is to avoid be not properly sized the assembly problem brought
In the specific embodiment that this programme provides, insulated end portions 131 is formed at stator by the technique such as plastic packaging or encapsulating
The end of 13, this patent is not limited to any technology mode.Electric machine stator iron use the technique such as plastic packaging, encapsulating carry out absolutely
Edge processes, and processes respective outer diameters and the boss of height at original surface of stator core, becomes former end cap seam, itself and stator ferrum
The heart is integrally forming.
The embodiment of the present invention additionally provides a kind of motor, is provided with sealing structure, its core at the end cap of its housing and casing
Heart improvement is, sealing structure is above-mentioned motor sealing structure.
Below in conjunction with practical set order, this programme is described further:
1) O-ring seals is placed into core inductance end；2) iron core is installed with end cap；3) casing is installed to iron core
With on end cap；Or in operation 1) on the basis of first iron core is installed in casing, then end cap is installed in casing.Unshakable in one's determination
Insulated end portions and end cap can be designed as boss location, are so possible to prevent the installation site in end cap unshakable in one's determination to change,
With this assembly technology, it is ensured that the stress of O-ring seals is still axial type, effectively prevent O-ring seals in Fig. 1 a from pacifying
The situation that in process of assembling, surface is scratched, improves the sealing reliability that motor is overall.
In sum, the motor sealing structure that the embodiment of the present invention provides, at former core end, it is carried out plastic packaging, encapsulating
Form boss etc. insulation processing, and the just boss on iron core is as the seam of original motor, eliminate between former iron core and end cap
Minimum range L1 or the length of L2, on the one hand this seam is as O-ring seals former end cap seam, decreases between stator and end cap
Distance L3, and then shorten motor length；On the other hand seam is put into core inductance end, by reducing outside motor seam
Footpath size, indirectly improves the thickness of end cap minimum wall thickness (MINI W.) H1, improves motor component strength of reliability；Additionally ensure O shape
Sealing ring its still use the mode of axial seal, prevent O-ring seals to be scratched.The embodiment of the present invention additionally provides a kind of answering
Motor with above-mentioned motor sealing structure.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (8)
1. a motor sealing structure, it is characterised in that include casing (11), end cap (12) and stator (13)；
The inner peripheral surface of described end cap (12) and the intersection of its inner face are provided with stepped annular groove, described including being positioned at
First groove of inner face, and second groove adjacent with described first groove；
Described stator (13) is provided with insulated end portions (131) near one end of described end cap (12), described insulated end portions (131)
Outer peripheral face is provided with for the positioning boss (132) with described second groove fit；
The outer peripheral face of the end face of described casing (11), the first groove of described end cap (12) and described insulated end portions (131) coordinates,
Surround the closed area of O-ring seals (14).
Seal structure for casing the most according to claim 1, it is characterised in that described positioning boss (132) is circular cylindrical projection
Platform structure, described second groove is cylinder shape groove structure.
Seal structure for casing the most according to claim 1, it is characterised in that the end face of the body of described stator (13) and institute
The end face stating casing (11) is concordant.
Seal structure for casing the most according to claim 1, it is characterised in that described insulated end portions (131) outer peripheral face is close
The Part I of its end face, with described end cap (12) inner peripheral surface Part II matched in clearance of bottom face in it.
Seal structure for casing the most according to claim 4, it is characterised in that the institute of described insulated end portions (131) outer peripheral face
Stating Part I is the conical surface that its end face close is the least, and the described Part II of described end cap (12) inner peripheral surface is and described first
The conical surface that part coordinates.
Seal structure for casing the most according to claim 1, it is characterised in that the end face of described insulated end portions (131) and institute
The inner bottom end clearance stating end cap (12) coordinates.
7. according to the seal structure for casing described in claim 1-6 any one, it is characterised in that described insulated end portions (131)
The end of described stator (13) it is formed at by plastic packaging or process for filling colloid.
8. a motor, is provided with sealing structure at the end cap of its housing and casing, it is characterised in that described sealing structure is such as
Motor sealing structure described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610917667.7A CN106329799B (en) | 2016-10-21 | 2016-10-21 | A kind of motor sealing structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610917667.7A CN106329799B (en) | 2016-10-21 | 2016-10-21 | A kind of motor sealing structure and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106329799A true CN106329799A (en) | 2017-01-11 |
| CN106329799B CN106329799B (en) | 2018-10-19 |
Family
ID=57817965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610917667.7A Active CN106329799B (en) | 2016-10-21 | 2016-10-21 | A kind of motor sealing structure and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106329799B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834745A (en) * | 2017-12-01 | 2018-03-23 | 丹阳荣嘉精密机械有限公司 | A kind of electric machine casing of good airproof performance |
| CN108418334A (en) * | 2018-05-02 | 2018-08-17 | 隆鑫通用动力股份有限公司 | Generator seal casinghousing and generator |
| CN109888938A (en) * | 2019-02-01 | 2019-06-14 | 东菱技术有限公司 | A kind of servo motor |
| CN112134386A (en) * | 2020-10-13 | 2020-12-25 | 中船重工鹏力（南京）超低温技术有限公司 | Airtight motor |
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| JP2000050574A (en) * | 1998-07-24 | 2000-02-18 | Matsushita Electric Ind Co Ltd | Fully sealed external fan induction motor |
| CN201226480Y (en) * | 2008-07-04 | 2009-04-22 | 中山大洋电机股份有限公司 | Localization structure for assembling motor end cap |
| CN203377709U (en) * | 2013-07-15 | 2014-01-01 | 淮安威灵电机制造有限公司 | A spigot structure of a motor end cap and a motor |
| CN104539080A (en) * | 2014-12-31 | 2015-04-22 | 广东威灵电机制造有限公司 | Plastic package stator and bearing end cap waterproof sealing structure and plastic package motor |
| CN206149064U (en) * | 2016-10-21 | 2017-05-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Sealing structure of motor and motor |
-
2016
- 2016-10-21 CN CN201610917667.7A patent/CN106329799B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000050574A (en) * | 1998-07-24 | 2000-02-18 | Matsushita Electric Ind Co Ltd | Fully sealed external fan induction motor |
| CN201226480Y (en) * | 2008-07-04 | 2009-04-22 | 中山大洋电机股份有限公司 | Localization structure for assembling motor end cap |
| CN203377709U (en) * | 2013-07-15 | 2014-01-01 | 淮安威灵电机制造有限公司 | A spigot structure of a motor end cap and a motor |
| CN104539080A (en) * | 2014-12-31 | 2015-04-22 | 广东威灵电机制造有限公司 | Plastic package stator and bearing end cap waterproof sealing structure and plastic package motor |
| CN206149064U (en) * | 2016-10-21 | 2017-05-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Sealing structure of motor and motor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834745A (en) * | 2017-12-01 | 2018-03-23 | 丹阳荣嘉精密机械有限公司 | A kind of electric machine casing of good airproof performance |
| CN107834745B (en) * | 2017-12-01 | 2024-02-09 | 丹阳荣嘉精密机械有限公司 | Motor housing with good sealing performance |
| CN108418334A (en) * | 2018-05-02 | 2018-08-17 | 隆鑫通用动力股份有限公司 | Generator seal casinghousing and generator |
| CN108418334B (en) * | 2018-05-02 | 2024-04-30 | 隆鑫通用动力股份有限公司 | Generator seal housing and generator |
| CN109888938A (en) * | 2019-02-01 | 2019-06-14 | 东菱技术有限公司 | A kind of servo motor |
| CN112134386A (en) * | 2020-10-13 | 2020-12-25 | 中船重工鹏力（南京）超低温技术有限公司 | Airtight motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106329799B (en) | 2018-10-19 |
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Effective date of registration: 20181123 Address after: 519000 Qianshan Golden Chicken West Road in Zhuhai, Guangdong Co-patentee after: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI Patentee after: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI Address before: 519070 Nine Science and Technology Building, 789 Jinji Road, Qianshan, Zhuhai City, Guangdong Province Patentee before: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI |
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