CN2528656Y - Fuel pump - Google Patents
Fuel pump Download PDFInfo
- Publication number
- CN2528656Y CN2528656Y CN 01265263 CN01265263U CN2528656Y CN 2528656 Y CN2528656 Y CN 2528656Y CN 01265263 CN01265263 CN 01265263 CN 01265263 U CN01265263 U CN 01265263U CN 2528656 Y CN2528656 Y CN 2528656Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- sensor
- stator
- motor
- circuit module
- 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 - Fee Related
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a fuel pump, particularly a fuel pump on the electric spraying engine of automobiles. The fuel pump comprises a back cover, a fuel pump, an electric motor and a front end cover; wherein, the front end cover is provided with a fuel outlet, and the back cover is provided with a fuel inlet. The electric motor is an electric brushless motor; a rotor shaft is through and fixed with an axis orifice of a rotating wheel of the fuel pump; the rotor end is provided with a cover board having a sensor rotor; one end of the rotor shaft is provided with a driving circuit module having a sensor stator; and a lead of the driving circuit module is communicated with a lead of a stator on the electric motor.
Description
One, technical field:
The utility model relates to a kind of fuel charger on a kind of fuel charger, particularly automotive electric injection engine.
Two, background technology:
Fuel charger is one of requisite parts of electro jet car driving engine.Usually such fuel charger is a kind of integral structure that comprises motor and oil pump.During work, vehicle fuel passes through motor internal again through oil pump, and mode of operation is accompanied by starting of automobile, and work-hours is very long.Motor in the fuel charger all adopts brush motor in the prior art, so its drawback at first gives prominence at brush and commutator wear soon, and general the best also can only reach 2000～3000 hours, has determined the whole fuel charger life-span not improve again.The mounting means of fuel charger in automobile mainly contains two kinds of built-in (placing in the fuel tank) and externals (placing outside the fuel tank).External is installed because of cooling problem and installation reliability problem and is eliminated.And can not produce electro spark during the work of built-in installation requirement fuel charger, usually employing partly is immersed in pasta with motor commutation in the fuel charger and eliminates electro spark to get off, in case but pasta cross and low can bring potential safety hazard equally, this is second drawback of such fuel charger.
Three, summary of the invention:
The utility model can not produce electro spark, a kind of fuel charger of long service life when aiming to provide a kind of work.
The utility model is finished by following technical scheme:
A kind of fuel charger, by the oil circuit order bonnet is arranged successively, oil pump, motor, front end cover, front end cover is provided with oil outlet, bonnet is provided with oil inlet, described motor is a brushless motor, set son in its shell, the rotor pedestal of rotor is between bonnet and front end cover, rotor shaft passes the axle center hole of runner of oil pump and fastening with it, the rotor tip pressing has cover plate, and an end casing double as rotor sensor is provided with the driver circuit module at the circumferential position place of rotor shaft one end, the driver circuit module is provided with sensor stator, and the electric line of stator communicates on the electric line of driver circuit module and the motor.
At the cover plate near sensor stator one end is a disk that has the annular breach of two symmetry fans, and this cover plate is rotor sensor, and the material of rotor sensor is the non-magnetic material.
The opening angle of breach is 90 °～92 ° on the rotor sensor, and sensor stator quantity is two, the circular movement track of its position respective sensor rotor breach, and for the center of circle of rotor sensor, location interval is 90 ° between the two sensors stator.
The motor commutation mode of operation is an electronic type in the utility model, detect the variation in magnetic field by rotor sensor and sensor stator, import signal into the driver circuit module and handle, by the switching of driver circuit module controls motor stator out of phase, realize commutation then.So it has substituted the mechanical switching that utilizes commutator and brush to realize, thereby has solved the problem of the generation of electro spark, partly there is not the problem of mechanical wear in commutation simultaneously, so improved the service life of motor and fuel charger.
Four, description of drawings
Fig. 1 is the utility model structure cross-sectional schematic.
Fig. 2 is the utility model sensor stator and rotor sensor relative position scheme drawing.
Five, the specific embodiment
Further describe embodiment below in conjunction with accompanying drawing.As shown in Figure 1: whole fuel charger is made of bonnet 1, oil pump 3, motor 5, front end cover 10, and front end cover 10 is provided with oil outlet 11, bonnet 1 is provided with fuel feed hole 2, and fuel oil enters from oil inlet, through oil pump, passes through motor internal again, sprays from oil outlet at last.This motor 5 is a brushless motor, sets son 7 in the shell 6, and 9 of the rotor shafts of rotor 8 are between front end cover 10 and bonnet 1.Rotor shaft 9 passes the axle center hole of oil pump 3 runners and fastening with it, becomes the rotating shaft of runner simultaneously, forms motor and oil pump integral structure like this.In the pressing of the two ends of rotor gland 4 is arranged, on the gland of left side, have two breach 14, this side pressure lid had not only been made gland but also as rotor sensor 15, breach 14 shapes on the rotor sensor 15 and position as shown in Figure 2: the fan annular breach 14 of two symmetries, the opening angle of each breach is 91 °.Driver circuit module 12 is arranged at rotor sensor 15 1 sides, establish on the driver circuit module with sensor stator 13, as shown in Figure 2: sensor stator 13 positions have two sensor stators corresponding to breach 14 positions of rotor sensor, are 90 ° of positions respectively and place.This embodiment is a fuel charger with four phase four condition mode of operation motors, locate all not to be in the dead point at an arbitrary position in order to make rotor, simultaneously when making machine operation not because of the energising phasor repeats to cause waste of energy too much, so the angular aperture of the breach of rotor sensor is chosen in 91 °.
Claims (3)
1, a kind of fuel charger, by the oil circuit order bonnet (1) is arranged successively, oil pump (3), motor (5), front end cover (10), front end cover is provided with oil outlet (11), bonnet is provided with oil inlet (2), it is characterized in that: described motor (5) is a brushless motor, set son (7) in its shell (6), rotor shaft (9) frame of rotor (8) is between bonnet and front end cover, rotor shaft passes the axle center hole of runner of oil pump (3) and fastening with it, the rotor tip pressing has cover plate (4), cover plate is provided with rotor sensor (15), be provided with driver circuit module (12) at the circumferential position place of rotor shaft one end, the driver circuit module is provided with sensor stator (13), and the electric line of stator communicates on the electric line of driver circuit module and the motor.
2, fuel charger as claimed in claim 1, it is characterized in that: at the cover plate near sensor stator one end is a disk that has two symmetry annular breach of fan (14), the cover plate of this side is rotor sensor, and the material of rotor sensor is the non-magnetic material.
3, fuel charger as claimed in claim 1 or 2, it is characterized in that: the opening angle that rotor sensor (15) is gone up breach (14) is 90 °～92 °, sensor stator (13) quantity is two, the circular movement track of its position respective sensor rotor breach, for the center of circle of rotor sensor, location interval is 90 ° between the two sensors stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01265263 CN2528656Y (en) | 2001-10-06 | 2001-10-06 | Fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01265263 CN2528656Y (en) | 2001-10-06 | 2001-10-06 | Fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2528656Y true CN2528656Y (en) | 2003-01-01 |
Family
ID=33672240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01265263 Expired - Fee Related CN2528656Y (en) | 2001-10-06 | 2001-10-06 | Fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2528656Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006105694A1 (en) * | 2005-04-08 | 2006-10-12 | Pujin Chen | Brushless motor for car fuel pump |
-
2001
- 2001-10-06 CN CN 01265263 patent/CN2528656Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006105694A1 (en) * | 2005-04-08 | 2006-10-12 | Pujin Chen | Brushless motor for car fuel pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Shen Zhengjie Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |