CN205123466U - Waterproof structure of external rotor electric machine - Google Patents
Waterproof structure of external rotor electric machine Download PDFInfo
- Publication number
- CN205123466U CN205123466U CN201520833737.1U CN201520833737U CN205123466U CN 205123466 U CN205123466 U CN 205123466U CN 201520833737 U CN201520833737 U CN 201520833737U CN 205123466 U CN205123466 U CN 205123466U
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- China
- Prior art keywords
- external rotor
- guard ring
- electric machine
- plastic packaging
- rotor electric
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a waterproof structure of external rotor electric machine, including pivot, external rotor and plastic envelope stator, plastic envelope stator outside is located to the external rotor cover, and the pivot is installed in the middle of the plastic envelope stator and link together with the external rotor, is provided with first annular groove on the bottom surface of, plastic envelope end plate peripheral in stator core, is provided with annular first guard ring on the external rotor is close to the outer fringe of plastic envelope end plate one end, and first guard ring stretches into first annular groove the inside, first guard ring include the root, manger plate portion and the rake of connection between root and manger plate portion, the root is installed in the outer fringe of external rotor tip, the rake extends to the outside aslope, and the rake of part stretches into first annular groove the inside at least, manger plate portion begins to stretch into first annular groove the inside along the axial extension from the tip of rake, a structure is simple, waterproof ability is good, effectively improve the reliability of external rotor electric machine use and the life of extension external rotor electric machine.
Description
Technical field:
The utility model relates to a kind of waterproof construction of external rotor electric machine, belongs to technical field of motors.
Background technology:
At present, the waterproof ability of most of external rotor electric machine is poor on the market, and the fitted seal between external rotor and stator is good not, is difficult to meet use in comparatively rugged environment.As shown in Figure 1, when the environment for use of external rotor electric machine 100 be outdoor or moisture more indoor time, water is easy to enter into external rotor electric machine inside from the gap 103 between external rotor 101 and the plastic packaging end plate 102 of stator, causes external rotor electric machine to damage or the lost of life.If the axial horizontal positioned of external rotor electric machine, the ability of waterproof can be poorer.
Summary of the invention:
The purpose of this utility model is to provide a kind of waterproof construction of external rotor electric machine, and its structure is simple, and waterproof ability is good, effectively improves the reliability that external rotor electric machine uses and the useful life extending external rotor electric machine.
The purpose of this utility model is achieved by following technical proposals.
A kind of waterproof construction of external rotor electric machine, comprise rotating shaft, external rotor and plastic packaging stator, external rotor is sheathed on outside plastic packaging stator, rotating shaft is arranged on plastic packaging stator centre and links together with external rotor, described plastic packaging stator comprises stator core, overhang insulation, coil windings and plastic-sealed body, overhang insulation is arranged on the end face of stator core, coil windings is set around on overhang insulation, plastic-sealed body is described stator core, overhang insulation and coil windings connect to one, in stator core one end, plastic-sealed body is provided with plastic packaging end plate, peripheral in stator core, the bottom surface of plastic packaging end plate is provided with first ring connected in star, in the outer rim of plastic packaging end plate one end, the first guard ring of annular is provided with at external rotor, first guard ring extend into inside first ring connected in star, the first described guard ring comprises root, retaining section and the rake be connected between root and retaining section, root is arranged in the outer rim of external rotor end, rake extends obliquely laterally, and at least part of rake extend into inside first ring connected in star, retaining section extends vertically and extend into inside first ring connected in star from the end of rake.
Above-mentionedly between the first guard ring and the outer rim of external rotor end, form the second annular groove, the diapire of first ring connected in star is provided with the second guard ring of annular, and the second guard ring extend into inside the second annular groove.
Above-mentioned the first groove portion being provided with annular on the lateral surface of the second guard ring.
The above-mentioned side toward retaining section from the end of the second guard ring is extended with the first stop hook.
Above-mentioned the second groove portion being provided with annular in the outer rim of the second annular groove madial wall, external rotor end.
The above-mentioned side toward the second guard ring from the end of external rotor is extended with the second stop hook.
Above-mentioned second guard ring and plastic packaging end plate are installed together by injection moulding.
The utility model compared with prior art, has following effect:
1) root is arranged in the outer rim of external rotor end, rake extends obliquely laterally, and at least part of rake extend into inside first ring connected in star, retaining section extends vertically and extend into inside first ring connected in star from the end of rake, such rake just defines ground floor protection, when the axial horizontal positioned of external rotor electric machine, first water can appeared by rake gear, can flow away along the outer rim of external rotor to make water, reduce water enters into external rotor electric machine inside possibility from the gap between external rotor and plastic packaging end plate, improve the reliability that external rotor electric machine uses and the useful life extending external rotor electric machine,
2) between the first guard ring and the outer rim of external rotor end, the second annular groove is formed, the diapire of first ring connected in star is provided with the second guard ring of annular, second guard ring extend into inside the second annular groove, such second guard ring just defines second layer protection, if water breakthrough first guard ring enters into the gap between external rotor and plastic packaging end plate, now water to flow on the second guard ring and down flows away along the second guard ring and can not enter into external rotor electric machine inside, the waterproof effect of external rotor electric machine is effectively improved by arranging the second guard ring,
3) on the lateral surface of the second guard ring, be provided with the first groove portion of annular, the waterproof effect of external rotor electric machine is improved with this, even if water breakthrough first guard ring enters into the gap between external rotor and plastic packaging end plate, water also can flow to inside the first groove portion and down flow away along the first groove portion, greatly reduces water breakthrough second guard ring and enters into the possibility of external rotor electric machine inside from the gap between external rotor and plastic packaging end plate;
4) in the outer rim of the second annular groove madial wall, external rotor end, be provided with the second groove portion of annular, third layer protection is formed with this, the waterproof effect of external rotor electric machine is improved with this, even if water breakthrough second guard ring enters into the gap between external rotor and plastic packaging end plate, water also can flow to inside the second groove portion and down flow away along the second groove portion, greatly reduces water breakthrough third layer and protects and the possibility entering into external rotor electric machine inside from the gap between external rotor and plastic packaging end plate.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of existing plastic packaging motor;
Fig. 2 is the stereogram of plastic packaging motor in embodiment;
Fig. 3 is the structural representation of plastic packaging motor in embodiment;
Fig. 4 is the partial enlarged drawing of part A in Fig. 3;
Fig. 5 is the stereogram of external rotor in embodiment;
Fig. 6 is the stereogram of plastic packaging stator in embodiment.
Embodiment:
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Embodiment one: as Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5 and Fig. 6, the present embodiment is a kind of waterproof construction of external rotor electric machine, comprise rotating shaft 1, external rotor 2 and plastic packaging stator 3, external rotor 2 is sheathed on outside plastic packaging stator 3, rotating shaft 1 is arranged on plastic packaging stator 3 centre and links together with external rotor 2, described plastic packaging stator 3 comprises stator core 31, overhang insulation 32, coil windings 33 and plastic-sealed body 34, overhang insulation 32 is arranged on the end face of stator core 31, coil windings 33 is set around on overhang insulation 32, plastic-sealed body 34 is described stator core 31, overhang insulation 32 and coil windings 33 connect to one, in stator core 31 one end, plastic-sealed body 34 is provided with plastic packaging end plate 35, peripheral in stator core 31, the bottom surface of plastic packaging end plate 35 is provided with first ring connected in star 351, in the outer rim of plastic packaging end plate 35 one end, the first guard ring 4 of annular is provided with at external rotor 2, first guard ring 4 extend into inside first ring connected in star 351, described external rotor 3 is AC external rotors, it comprises rotor core and aluminum casting, described first guard ring 4 can be the individual part be arranged in addition on aluminum casting, or the part integrally formed with aluminum casting.
The rake 42 that the first described guard ring 4 comprises root 41, retaining section 43 and is connected between root 41 and retaining section 43, root 41 is arranged in the outer rim of external rotor 2 end, rake 42 extends obliquely laterally, and at least part of rake 42 extend into inside first ring connected in star 351, retaining section 43 extends vertically and extend into inside first ring connected in star 351 from the end of rake 42.Such rake 42 just defines ground floor protection, when the axial horizontal positioned of external rotor electric machine, first water can be kept off by rake 42 and appearing, can flow away along the outer rim of external rotor 2 to make water, reduce water enters into external rotor electric machine inside possibility from the gap between external rotor 2 and plastic packaging end plate 35, improve the reliability that external rotor electric machine uses and the useful life extending external rotor electric machine. same, when external rotor electric machine is axially vertically placed, identical during the axial horizontal positioned of its waterproof principle and external rotor electric machine, does not repeat them here.
Between the first guard ring 4 and the outer rim of external rotor 2 end, form the second annular groove 20, the second guard ring 5, second guard ring 5 that the diapire of first ring connected in star 351 is provided with annular extend into inside the second annular groove 20.Such second guard ring 5 just defines second layer protection, if water breakthrough first guard ring 4 enters into the gap between external rotor 2 and plastic packaging end plate 35, now water to flow on the second guard ring 5 and down flows away along the second guard ring 5 and can not enter into external rotor electric machine inside, effectively improves the waterproof effect of external rotor electric machine by arranging the second guard ring 5.
The lateral surface of the second guard ring 5 is provided with the first groove portion 50 of annular, the water flow on the second guard ring 5 lateral surface finally can flow into inside the first groove portion 50, and down can flow away along the first groove portion 50, greatly reduce water breakthrough second guard ring and enter into the possibility of external rotor electric machine inside from the gap between external rotor and plastic packaging end plate.
Side toward retaining section 43 from the end of the second guard ring 5 is extended with the first stop hook 51, first stop hook 51 can effectively water shelves inside the first groove portion 50, thus reduce water breakthrough second guard ring and enter into the possibility of external rotor electric machine inside from the gap between external rotor and plastic packaging end plate.
The outer rim of the second annular groove 20 madial wall, external rotor 2 end is provided with the second groove portion 21 of annular, third layer protection is formed with this, even if water breakthrough second guard ring 5 enters into the gap between external rotor 2 and plastic packaging end plate 35, water also can flow to inside the second groove portion 21 and down flow away along the second groove portion 21, greatly reduces water breakthrough third layer and protects and the possibility entering into external rotor electric machine inside from the gap between external rotor and plastic packaging end plate.
Side toward the second guard ring 5 from the end of external rotor 2 is extended with the second stop hook 22, second stop hook 22 can effectively water shelves inside the second groove portion 21, thus reduce the protection of water breakthrough third layer and enter into the possibility of external rotor electric machine inside from the gap between external rotor and plastic packaging end plate.
Described second guard ring 5 is installed together by injection moulding with plastic packaging end plate 35, and production technology is simple, structural strength is large.
Above embodiment is better embodiment of the present invention; but embodiments of the present invention are not limited thereto; other are any do not deviate from Spirit Essence of the present invention and principle under do change, modification, substitute, combine, simplify; be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. the waterproof construction of an external rotor electric machine, comprise rotating shaft (1), external rotor (2) and plastic packaging stator (3), external rotor (2) is sheathed on plastic packaging stator (3) outside, rotating shaft (1) is arranged on plastic packaging stator (3) centre and links together with external rotor (2), described plastic packaging stator (3) comprises stator core (31), overhang insulation (32), coil windings (33) and plastic-sealed body (34), overhang insulation (32) is arranged on the end face of stator core (31), coil windings (33) is set around on overhang insulation (32), plastic-sealed body (34) is described stator core (31), overhang insulation (32) and coil windings (33) connect to one, in stator core (31) one end, plastic-sealed body (34) is provided with plastic packaging end plate (35), peripheral in stator core (31), the bottom surface of plastic packaging end plate (35) is provided with first ring connected in star (351), in the outer rim of plastic packaging end plate (35) one end, first guard ring (4) of annular is provided with at external rotor (2), first guard ring (4) extend into first ring connected in star (351) the inside, it is characterized in that: described the first guard ring (4) comprises root (41), retaining section (43) and the rake (42) be connected between root (41) and retaining section (43), root (41) is arranged in the outer rim of external rotor (2) end, rake (42) extends obliquely laterally, and at least part of rake (42) extend into first ring connected in star (351) the inside, retaining section (43) extend vertically from the end of rake (42) extend into first ring connected in star (351) the inside.
2. the waterproof construction of a kind of external rotor electric machine according to claim 1, it is characterized in that: between the first guard ring (4) and the outer rim of external rotor (2) end, form the second annular groove (20), the diapire of first ring connected in star (351) is provided with second guard ring (5) of annular, and the second guard ring (5) extend into the second annular groove (20) the inside.
3. the waterproof construction of a kind of external rotor electric machine according to claim 2, is characterized in that: the first groove portion (50) being provided with annular on the lateral surface of the second guard ring (5).
4. the waterproof construction of a kind of external rotor electric machine according to claim 3, is characterized in that: the side toward retaining section (43) from the end of the second guard ring (5) is extended with the first stop hook (51).
5. the waterproof construction of a kind of external rotor electric machine according to Claims 2 or 3 or 4, is characterized in that: the second groove portion (21) being provided with annular in the outer rim of the second annular groove (20) madial wall, external rotor (2) end.
6. the waterproof construction of a kind of external rotor electric machine according to claim 5, is characterized in that: the side toward the second guard ring (5) from the end of external rotor (2) is extended with the second stop hook (22).
7. the waterproof construction of a kind of external rotor electric machine according to Claims 2 or 3 or 4, is characterized in that: described second guard ring (5) and plastic packaging end plate (35) are installed together by injection moulding.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833737.1U CN205123466U (en) | 2015-10-22 | 2015-10-22 | Waterproof structure of external rotor electric machine |
| PCT/CN2016/075895 WO2017067125A1 (en) | 2015-10-22 | 2016-03-08 | Waterproof structure for external rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833737.1U CN205123466U (en) | 2015-10-22 | 2015-10-22 | Waterproof structure of external rotor electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205123466U true CN205123466U (en) | 2016-03-30 |
Family
ID=55579039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520833737.1U Active CN205123466U (en) | 2015-10-22 | 2015-10-22 | Waterproof structure of external rotor electric machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205123466U (en) |
| WO (1) | WO2017067125A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720725A (en) * | 2016-04-20 | 2016-06-29 | 苏州朗高电机有限公司 | Main drive motor splash-proof device of passenger car |
| CN106787370A (en) * | 2017-03-29 | 2017-05-31 | 常州朗奇威电器有限公司 | A kind of modified external rotor electric machine and its production method |
| CN107834743A (en) * | 2017-11-09 | 2018-03-23 | 合肥市通得力电气制造有限公司 | A kind of external rotor electric machine with waterproof construction |
| CN113937925A (en) * | 2021-10-18 | 2022-01-14 | 珠海格力电器股份有限公司 | Waterproof structure of external rotor motor and motor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108433526B (en) * | 2018-04-23 | 2023-11-03 | 广东格兰仕集团有限公司 | Hot air component of steaming and baking oven |
| CN109185198A (en) * | 2018-11-06 | 2019-01-11 | 杭州雪尔电器有限公司 | A kind of protection type external rotor axial-flow fan |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101075756A (en) * | 2006-05-19 | 2007-11-21 | 南京乐金熊猫电器有限公司 | Electric motor |
| CN201789359U (en) * | 2010-09-14 | 2011-04-06 | 中山大洋电机制造有限公司 | External rotor electric machine with waterproof structure |
| US8480385B2 (en) * | 2010-11-25 | 2013-07-09 | Asia Vital Components Co., Ltd. | Waterproof and dustproof fan motor structure and fan using the same |
| CN203942373U (en) * | 2014-06-26 | 2014-11-12 | 付家骐 | A kind of waterproof construction of motor |
-
2015
- 2015-10-22 CN CN201520833737.1U patent/CN205123466U/en active Active
-
2016
- 2016-03-08 WO PCT/CN2016/075895 patent/WO2017067125A1/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720725A (en) * | 2016-04-20 | 2016-06-29 | 苏州朗高电机有限公司 | Main drive motor splash-proof device of passenger car |
| CN105720725B (en) * | 2016-04-20 | 2018-08-07 | 苏州朗高电机有限公司 | A kind of car main drive motor splash proof device |
| CN106787370A (en) * | 2017-03-29 | 2017-05-31 | 常州朗奇威电器有限公司 | A kind of modified external rotor electric machine and its production method |
| CN106787370B (en) * | 2017-03-29 | 2023-12-08 | 常州朗奇威电器有限公司 | Improved outer rotor motor and production method thereof |
| CN107834743A (en) * | 2017-11-09 | 2018-03-23 | 合肥市通得力电气制造有限公司 | A kind of external rotor electric machine with waterproof construction |
| CN113937925A (en) * | 2021-10-18 | 2022-01-14 | 珠海格力电器股份有限公司 | Waterproof structure of external rotor motor and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017067125A1 (en) | 2017-04-27 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |