CN104242534A - Immersion-type brushless direct-current motor - Google Patents
Immersion-type brushless direct-current motor Download PDFInfo
- Publication number
- CN104242534A CN104242534A CN201410522389.6A CN201410522389A CN104242534A CN 104242534 A CN104242534 A CN 104242534A CN 201410522389 A CN201410522389 A CN 201410522389A CN 104242534 A CN104242534 A CN 104242534A
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- CN
- China
- Prior art keywords
- stator
- motor
- bearing
- main shaft
- soaking type
- 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 claims abstract description 5
- 238000002791 soaking Methods 0.000 claims description 21
- 239000003822 epoxy resin Substances 0.000 claims description 14
- 229920000647 polyepoxide Polymers 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 6
- 239000008393 encapsulating agent Substances 0.000 claims description 5
- 229910001369 Brass Inorganic materials 0.000 claims description 4
- 239000010951 brass Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 abstract description 6
- 239000000498 cooling water Substances 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract 2
- 238000005265 energy consumption Methods 0.000 description 7
- 229910002804 graphite Inorganic materials 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses an immersion-type brushless direct-current motor which comprises a main case. A rotor and a stator are arranged in the main case, a spindle is arranged in the middle of the rotor, two ends of the spindle are connected on the main case through bearings, an isolation tube is arranged in the main case, a sealed stator placement area is formed between the isolation tube and the main case, and the stator is placed in the stator placement area; spiral water guide grooves are at least arranged at the positions of the bearings of the spindle. By the arrangement, no external sealing is needed, the immersion-type brushless direct-current motor is in direct contact with water, the cooling water can flow inside the motor, and cooling effect is high.
Description
Technical field
The present invention relates to a kind of brshless DC motor, be specifically related to a kind of soaking type brshless DC motor.
Background technology
Have at present brushless motor in use carbon brush easily wear and tear, once water inlet will short circuit, energy consumption is higher.Although common brushless electric machine energy consumption is low, the easy short circuit of same water inlet, and it is dumb to commutate, and have time delay phenomenon, speed governing is slow.Above two kinds of direct current machines and common brushless electric machine are not the best products used under water.
The technical problem that in prior art, motor exists when soaking comprises: motor needs outside seal, directly can not contact water, usually uses sealing ring to seal.Common brshless DC motor just has time delay when rotating, and needs speed change step by step.Common electric machine uses rolling bearing, and usual material is steel, easily gets rusty under water, and coefficient of friction is large, and energy consumption is high.Common electric machine directly can not use water cooling under water, easily generates heat.
Summary of the invention
The present invention is intended to solve one of above-mentioned existing technical problem existed in the art, proposes a kind of soaking type brshless DC motor.
In order to above-mentioned purpose, the technical solution used in the present invention is:
A kind of soaking type brshless DC motor, comprise casing, rotor and stator is provided with in casing, main shaft is provided with in the middle part of rotor, the two ends of main shaft connect on the housing by bearing, be provided with isolating cylinder in described casing, form the stator rest area of sealing between isolating cylinder and casing, described stator is placed in stator rest area; Described main shaft is at least provided with spiral helicine guiding gutter at described bearing place.
It is water funk that the enamelled wire be wound around owing to having stator when brushless electric machine works under water only belongs to electronic section; soaking type brshless DC motor according to the present invention is inside and outside two-layer by being made by motor housing; skin is protecting of stator shell; internal layer is isolating cylinder, forms stator rest area between protecting of stator shell and isolating cylinder.Stator is put into stator rest area, reach the waterproof effect of motor stator with epoxy resin encapsulated gap.The present invention also by being designed with spiral guiding gutter on main shaft, helicla flute is driven to rotate as the spindle turns, thus the water outside motor is flow to from the bearing of main shaft one end through guiding gutter, in the Clearance Flow of stator and rotor, then flow out from the bearing of the main shaft other end through guiding gutter.It can thus be appreciated that soaking type brshless DC motor of the present invention does not need to do any outside seal, directly contact with water, and cooling water can flow at motor internal, cooling effect is strong.
Soaking type brshless DC motor according to the embodiment of the present invention can also have following additional technical feature:
Preferably, the outside of described rotor is provided with waterproof drum, and the two ends of described waterproof drum are connected to the two ends of described rotor.Described waterproof drum is stainless steel waterproof drum.
Preferably, the gap between described waterproof drum and isolating cylinder is 0.3mm.Be greater than 0.3mm(isolating cylinder with voltage with galvanic gaps through experiment motor and turn between waterproof drum) time can cause motor torque to reduce rotating speed promoting, cause energy efficiency to reduce.Cannot discharge when gap is less than 0.3mm the calcium magnesium addition and tiny silt that motor internal produces for a long time under water, can motor rotation blockage be caused.
Preferably, described isolating cylinder is for be formed for encapsulant is wrapped in outside described stator.
Preferably, described encapsulant is epoxy resin.It can thus be appreciated that, adopt epoxy resin encapsulated gap to reach the waterproof effect of motor stator.
Preferably, described bearing is sliding bearing, and sliding bearing is provided with some grooves, is filled with lubriation material in described groove.It can thus be appreciated that, relative to the steel rolling bearing that common electric machine uses, adopt sliding bearing, lubriation material graphite is mounted in copper sheathing, reduce coefficient of friction, reduce energy consumption.Further, be increase the rub proofness of sliding bearing and lubricity, described lubriation material is that the brass of 6:1 and graphite mix and forms by weight portion.
Preferably, the inner surface of described bearing has spiral helicine groove.It can thus be appreciated that Bearing inner has matrix spiral grooves effect (1) to coordinate motor helical axle to realize motor internal water circulation, also motor internal calcium magnesium addition and tiny silt can be discharged motor internal; (2) coefficient of friction reducing axle and graphite bearing reduces energy consumption of electrical machinery.In addition, establish guiding gutter if only had on main shaft, then discharge is limited to the size of guiding gutter and the rotating speed of main shaft, water-cooled weak effect.Bearing also arranges groove, and a part of water from the drive of main axis, can flow to from the groove bearing or flows out, adding discharge, good water-cooling effect.As preferably, spiral grooves pitch on bearing is greater than the spiral shell cabinet of gathering sill on main shaft, like this, in the rotary course of main shaft, the current introduced through main shaft helicla flute are less owing to being subject to the resistance of spiral grooves on bearing, thus can flow out fast, half side formation negative pressure after bearing, increases water velocity further then.But on bearing, pitch should not be too large, if too large, can affect the rotation of the water yield, and flow out current and produce resistance, the spiral grooves pitch therefore on bearing is that the 1.2-2 of the spiral shell cabinet of gathering sill on main shaft is doubly advisable.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of soaking type brshless DC motor of the present invention;
Fig. 2 is the surface structure schematic diagram of soaking type brshless DC motor of the present invention;
Fig. 3 is the structural representation () of stator rest area of the present invention part;
Fig. 4 is the structural representation (two) of stator rest area of the present invention part;
Fig. 5 is the structural representation of bearing of the present invention.
Description of reference numerals:
Casing 1, rotor 2, stator 3, main shaft 4, bearing 5, epoxy resin isolating cylinder 6, stainless steel waterproof drum 7, stator rest area 8, brass 9, graphite 10, water channel 11, groove 12.
Embodiment
Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
With reference to figure 1-5, a kind of soaking type brshless DC motor of the embodiment of the present invention, comprises casing 1, rotor 2, stator 3, main shaft 4, bearing 5, epoxy resin isolating cylinder 6 and stainless steel waterproof drum 7.
Be provided with rotor 2 and stator 3 in casing 1, in the middle part of rotor 2, be provided with main shaft 4.The two ends of main shaft 4 are connected on casing 1 by bearing 5, and one end of casing 1 inherent left side bearing 5 is provided with water channel 11.Be provided with epoxy resin isolating cylinder 6 in casing 1, epoxy resin isolating cylinder 6 is for being formed outside encapsulant epoxy resin is wrapped in described stator 3.Form the stator rest area 8 of sealing between epoxy resin isolating cylinder 6 and casing 1, described stator 3 is placed in stator rest area 8.The outside of described rotor 2 is provided with stainless steel waterproof drum 7, and the two ends of stainless steel waterproof drum 7 are connected to the two ends of rotor 2.Gap between stainless steel waterproof drum 7 and epoxy resin isolating cylinder 6 is 0.3mm.Be greater than 0.3mm(isolating cylinder with voltage with galvanic gaps through experiment motor and turn between waterproof drum) time can cause motor torque to reduce rotating speed promoting, cause energy efficiency to reduce.Cannot discharge when gap is less than 0.3mm the calcium magnesium addition and tiny silt that motor internal produces for a long time under water, can motor rotation blockage be caused.
As shown in Figure 5, bearing 5 is sliding bearing, and sliding bearing is provided with some grooves, is filled with lubriation material in described groove.Lubriation material is that the brass 9 of 6:1 and graphite 10 mix and forms by weight portion.
Main shaft 4 is provided with spiral helicine guiding gutter at described bearing 5 place, and guiding gutter is communicated with described water channel 11.The inner surface of bearing 5 has spiral helicine groove 12.It can thus be appreciated that bearing 5 inside has the groove 12 of matrix spiral to act on (1) cooperation motor helical axle to realize motor internal water circulation, also motor internal calcium magnesium addition and tiny silt can be discharged motor internal; (2) coefficient of friction reducing axle and graphite bearing reduces energy consumption of electrical machinery.In addition, establish guiding gutter if only had on main shaft 4, be then limited to the size of guiding gutter and the rotating speed of main shaft 4 by the discharge of water channel 11, water-cooled weak effect.Bearing 5 also arranges groove 12, the drive that a part of water can rotate from main shaft 4, flows to from the groove 12 bearing 5 or flow out, adding discharge, good water-cooling effect.Spiral grooves 12 pitch on the present embodiment bearing 5 is 1.5 times of the spiral shell cabinet of gathering sill on main shaft 4, like this, in the rotary course of main shaft 4, through main shaft 4 helicla flute introduce water channel 11 current due to the resistance being subject to spiral grooves 12 on bearing 5 less, thus can flow out fast, then half side formation negative pressure after bearing 5, increases water velocity further.
It is water funk that the enamelled wire be wound around owing to having stator 3 when brushless electric machine works under water only belongs to electronic section; inside and outside two-layer by motor housing is made according to the soaking type brshless DC motor of the embodiment of the present invention; skin is protecting of stator shell; internal layer is epoxy resin isolating cylinder 6, forms stator rest area 8 between protecting of stator shell and epoxy resin isolating cylinder 6.Stator 3 is put into stator rest area 8, reaches the waterproof effect of motor stator 3 with epoxy resin encapsulated gap.The present invention also by being designed with spiral guiding gutter on main shaft 4, drive helicla flute to rotate when main shaft 4 rotates, thus the water outside motor is flow to from the bearing 5 of main shaft 4 one end through guiding gutter, in the Clearance Flow of stator 3 with rotor 2, then flow out from the bearing 5 of main shaft 4 other end through guiding gutter.It can thus be appreciated that soaking type brshless DC motor of the present invention does not need to do any outside seal, directly contact with water, and cooling water can flow at motor internal, cooling effect is strong.
The advantage of the present embodiment:
1. there is no carbon brush, long service life;
2. without the need to outside seal, water flows at motor internal, there is not short circuit phenomenon;
3. coefficient of friction is little, and energy consumption is low.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (8)
1. a soaking type brshless DC motor, comprise casing, rotor and stator is provided with in casing, main shaft is provided with in the middle part of rotor, the two ends of main shaft connect on the housing by bearing, it is characterized in that, are provided with isolating cylinder in described casing, form the stator rest area of sealing between isolating cylinder and casing, described stator is placed in stator rest area; Described main shaft is at least provided with spiral helicine guiding gutter at described bearing place.
2. soaking type brshless DC motor according to claim 1, is characterized in that, the outside of described rotor is provided with waterproof drum, and the two ends of described waterproof drum are connected to the two ends of described rotor.
3. soaking type brshless DC motor according to claim 2, is characterized in that, the gap between described waterproof drum and isolating cylinder is 0.3mm.
4. soaking type brshless DC motor according to claim 1, is characterized in that, described isolating cylinder is for be formed for encapsulant is wrapped in outside described stator.
5. soaking type brshless DC motor according to claim 4, is characterized in that, described encapsulant is epoxy resin.
6. soaking type brshless DC motor according to claim 1, is characterized in that, described bearing is provided with some grooves, is filled with lubriation material in described groove.
7. soaking type brshless DC motor according to claim 6, is characterized in that, described lubriation material is that the brass of 6:1 and graphite form by weight portion.
8. soaking type brshless DC motor according to claim 1, is characterized in that, the inner surface of described bearing has spiral helicine groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410522389.6A CN104242534B (en) | 2014-10-01 | 2014-10-01 | A kind of soaking type brshless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410522389.6A CN104242534B (en) | 2014-10-01 | 2014-10-01 | A kind of soaking type brshless DC motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104242534A true CN104242534A (en) | 2014-12-24 |
| CN104242534B CN104242534B (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410522389.6A Active CN104242534B (en) | 2014-10-01 | 2014-10-01 | A kind of soaking type brshless DC motor |
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| Country | Link |
|---|---|
| CN (1) | CN104242534B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671390A (en) * | 2015-01-19 | 2015-06-03 | 安徽舜禹水务实业有限公司 | External water tank disinfecting instrument |
| CN110758696A (en) * | 2019-11-29 | 2020-02-07 | 青岛澎湃海洋探索技术有限公司 | Be used for integrated underwater propulsor of AUV |
| CN110836190A (en) * | 2019-09-28 | 2020-02-25 | 金华市东大泵业有限公司 | Internal mesh-shaped two-state heat-conducting permanent magnet shielding tube pump |
| CN111313583A (en) * | 2019-12-24 | 2020-06-19 | 天津深之蓝海洋设备科技有限公司 | Permanent magnet rotor structure of underwater motor, underwater motor and underwater equipment |
| CN114123616A (en) * | 2021-12-22 | 2022-03-01 | 湖南耐普泵业股份有限公司 | A wet type motor bearing cooling structure |
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| CN102868249A (en) * | 2012-10-15 | 2013-01-09 | 浙江东音泵业股份有限公司 | Submersible motor for well |
| CN102954005A (en) * | 2011-08-16 | 2013-03-06 | 上海佰诺泵阀有限公司 | Low-noise electric pipeline shielding pump |
| CN103149004A (en) * | 2013-03-15 | 2013-06-12 | 杭州电子科技大学 | Special hammer device for nuclear power station |
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2014
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| JPS61280728A (en) * | 1985-06-04 | 1986-12-11 | Yazaki Corp | Canned motor pump automatic thrust balance apparatus |
| JPH05219687A (en) * | 1992-02-05 | 1993-08-27 | Yazaki Corp | Canned motor pump |
| CN1141395A (en) * | 1995-07-25 | 1997-01-29 | 大宇电子株式会社 | Circulating pump for cooling water to be forcibly circulated |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671390A (en) * | 2015-01-19 | 2015-06-03 | 安徽舜禹水务实业有限公司 | External water tank disinfecting instrument |
| CN110836190A (en) * | 2019-09-28 | 2020-02-25 | 金华市东大泵业有限公司 | Internal mesh-shaped two-state heat-conducting permanent magnet shielding tube pump |
| CN110836190B (en) * | 2019-09-28 | 2021-06-01 | 金华市东大泵业有限公司 | Internal mesh-shaped two-state heat-conducting permanent magnet shielding tube pump |
| CN110758696A (en) * | 2019-11-29 | 2020-02-07 | 青岛澎湃海洋探索技术有限公司 | Be used for integrated underwater propulsor of AUV |
| CN111313583A (en) * | 2019-12-24 | 2020-06-19 | 天津深之蓝海洋设备科技有限公司 | Permanent magnet rotor structure of underwater motor, underwater motor and underwater equipment |
| CN114123616A (en) * | 2021-12-22 | 2022-03-01 | 湖南耐普泵业股份有限公司 | A wet type motor bearing cooling structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104242534B (en) | 2017-09-15 |
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| PB01 | Publication | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180423 Address after: 276800 the southern section of HSBC Road, Rizhao City International Marine City, Shandong Patentee after: RIZHAO SUNTIME AMUSEMENT EQUIPMENT Co.,Ltd. Address before: 250011 No. 1, unit 1, block 5, Chai pan District, Lixia District, Ji'nan, Shandong, China. Patentee before: Chen Wantao |
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Address after: 276800 resident of taoluo Town, Rizhao City, Shandong Province Patentee after: Rizhao wuguangshise industry and Trade Co.,Ltd. Address before: 276800 the southern section of HSBC Road, Rizhao City International Marine City, Shandong Patentee before: RIZHAO SUNTIME AMUSEMENT EQUIPMENT Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A water immersed brushless DC motor Effective date of registration: 20221018 Granted publication date: 20170915 Pledgee: Rizhao Donggang Rural Commercial Bank Co.,Ltd. Pledgor: Rizhao wuguangshise industry and Trade Co.,Ltd. Registration number: Y2022980018611 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |