CN202940718U - New oil-immersed brushless direct current motor - Google Patents
New oil-immersed brushless direct current motor Download PDFInfo
- Publication number
- CN202940718U CN202940718U CN 201220583872 CN201220583872U CN202940718U CN 202940718 U CN202940718 U CN 202940718U CN 201220583872 CN201220583872 CN 201220583872 CN 201220583872 U CN201220583872 U CN 201220583872U CN 202940718 U CN202940718 U CN 202940718U
- Authority
- CN
- China
- Prior art keywords
- stator
- oil
- motor
- driver
- oil inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 claims abstract description 8
- 239000000295 fuel oil Substances 0.000 claims description 9
- 230000011664 signaling Effects 0.000 claims description 5
- 239000000446 fuel Substances 0.000 abstract description 4
- 239000007921 spray Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
Landscapes
- Dc Machiner (AREA)
Abstract
The utility model discloses a new oil-immersed brushless direct current motor, which comprises a rotor, an oil inlet, bearings, a stator, an oil outlet, a position signal sensor and a driver, wherein the oil inlet is arranged on the left end surface of the stator; the oil outlet is arranged on the right end surface of the stator; pressurized fuel enters the inner part of the motor from the oil inlet via the front bearing, circulates at the air gap between the stator and the rotor, passes through the back bearing and the oil outlet and evenly sprays; the driver comprises electronic switches, and one path of the electronic switches is connected with each winding of the stator; and the position signal sensor is connected with the driver. As a result of adopting the brushless structure, brush replacement is not needed, and use and maintenance are simple; as the motor is provided with the proper oil inlet and the oil outlet, the fuel flows through the inner part of the motor, and the bearings can be dynamically lubricated; and heat generated by the stator windings and the iron core is taken away by the flowing fuel at the air gap, and temperature rise is reduced.
Description
Technical field
The utility model relates to machine field, is specifically related to a kind of novel oil-immersed type brushless DC motor.
Background technology
The motor of working in force (forcing) pump, require motor to be immersed in fuel oil and work, and stable pressure is provided.The brush DC motors used in the past, must change brush after wear of brush, and temperature rise is large, and the spark produced when simultaneously brush-commutated contacts and can bring danger with fuel oil.Therefore, in use and installation process, must take a lot of insulation blocking measures.
Summary of the invention
The weak point existed for above-mentioned prior art, the purpose of this utility model is to provide a kind of novel oil-immersed type brushless DC motor, and this New-type electric machine has advantages of that temperature rise is low, it is simple to safeguard, it is safe to use.
The technical solution of the utility model is: a kind of novel oil-immersed type brushless DC motor, comprise rotor, oil-in, bearing, stator, oil-out, position signalling transducer and driver, oil-in is located at the left side of stator, oil-out is located at the right side of stator, pressurized fuel oil enters motor internal from oil-in by fore bearing, after air gap circulation between stator and rotor, after rear bearing and oil-out, evenly ejection, driver is comprised of electronic switch, road each winding of electronic switch connecting stator wherein, the position signalling transducer is connected with driver.
Compared with prior art, the beneficial effects of the utility model are: owing to adopting the brushless structure, need not change brush, working service is simple, and motor is provided with suitable oil-in and oil-out, the fuel oil motor internal of flowing through, bearing is produced to the dynamically lubricating effect, stator winding and the heat produced unshakable in one's determination, the fuel oil flowed in air gap is taken away, and has reduced temperature rise.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Pressurized fuel oil enters motor internal from oil-in 2 by fore bearing 3, after air gap circulation between stator 4 and rotor 1, and by rear bearing 5, the rear even ejection of oil-out 6, stator winding and the heat produced unshakable in one's determination, the fuel oil flowed in air gap is taken away.The rotor outer circle at the position corresponding with stator core is embedded with rare-earth permanent magnet.As preferably, go out, enter mouth position, fuel gallery and size in motor and can guarantee that fuel oil evenly sprays, guarantee the force (forcing) pump pressure stability.
Driver 8 is comprised of electronic switch, a road electronic switch wherein respectively with stator in each winding link, selected the device for power switching of the low on-resistance of milliohm level.
It is three figure place coded signals that position signalling transducer 7 in motor changes volume by the real time position of electric machine rotation, the break-make of driver 8 each road electronic switches of opsition dependent signal controlling, thus each winding of motor is switched on successively, motor is realized to contactless electronic commutation.
Motor power voltage is between 27～29V, and driver arranges the absorption circuit of the surge pulse voltage between anti-75～85V, guarantees the reliability of motor.
Claims (1)
1. a novel oil-immersed type brushless DC motor, comprise rotor, oil-in, bearing, stator, oil-out, position signalling transducer and driver, oil-in is located at the left side of stator, oil-out is located at the right side of stator, pressurized fuel oil enters motor internal from oil-in by fore bearing, after air gap circulation between stator and rotor, after rear bearing and oil-out, evenly ejection, driver is comprised of electronic switch, road each winding of electronic switch connecting stator wherein, the position signalling transducer is connected with driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583872 CN202940718U (en) | 2012-11-08 | 2012-11-08 | New oil-immersed brushless direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583872 CN202940718U (en) | 2012-11-08 | 2012-11-08 | New oil-immersed brushless direct current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940718U true CN202940718U (en) | 2013-05-15 |
Family
ID=48324940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220583872 Expired - Lifetime CN202940718U (en) | 2012-11-08 | 2012-11-08 | New oil-immersed brushless direct current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912368A (en) * | 2019-12-06 | 2020-03-24 | 陕西航空电气有限责任公司 | Oil-cooled high-pressure brushless direct-current motor for aviation fuel system |
-
2012
- 2012-11-08 CN CN 201220583872 patent/CN202940718U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912368A (en) * | 2019-12-06 | 2020-03-24 | 陕西航空电气有限责任公司 | Oil-cooled high-pressure brushless direct-current motor for aviation fuel system |
| CN110912368B (en) * | 2019-12-06 | 2021-11-16 | 陕西航空电气有限责任公司 | Oil-cooled high-pressure brushless direct-current motor for aviation fuel system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
|
| CX01 | Expiry of patent term |