CN201705517U - Electric fuel pump - Google Patents
Electric fuel pump Download PDFInfo
- Publication number
- CN201705517U CN201705517U CN2010201734071U CN201020173407U CN201705517U CN 201705517 U CN201705517 U CN 201705517U CN 2010201734071 U CN2010201734071 U CN 2010201734071U CN 201020173407 U CN201020173407 U CN 201020173407U CN 201705517 U CN201705517 U CN 201705517U
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- Prior art keywords
- negative
- positive
- pump case
- inductance
- metal pump
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- Expired - Lifetime
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Abstract
The utility model discloses an electric fuel pump, which comprises a metal pump case, an electrical inductor, positive and negative power lines and positive and negative power terminals. A rotor, a permanent magnet, a commutation piece, positive and negative electric brushes, and one end of positive and negative electric brushes terminals are packaged inside the metal pump case. The electrical inductor, the positive and negative power terminals, and the other end of the positive and negative electric brushes terminals are arranged outside the metal pump case. The positive and negative power lines are respectively connected between the positive and negative power terminals and the positive and negative electric brushes terminals in series. The electrical inductor and the power lines are connected between the power terminals and the electric brushes terminals in series. The electric fuel pump is suitable for meeting the requirement on small space of small-sized electric fuel pump case.
Description
Technical field
The utility model relates to the miniature gasoline engine oil-fired system, particularly a kind of electric fuel punp.
Background technique
The motorcar electric fuel pump, in the commutation process that runs up, electric current changes fast, because the time that discharges and recharges is fast, the unit time current changing rate is big, can generate electromagnetic waves other electric equipments are produced harassing and wrecking, influences other electric equipment proper functioning when serious.
The patent No. is that the Chinese patent of ZL 200520020583.0 discloses a kind of electric fuel punp electromagnetic distrubance restraining device, as shown in Figure 1, comprise round barrel shape housing 1 and be installed in front cover 6, the rear end cover 11 at housing 1 two ends respectively, rotor 10 is housed in the housing 1, permanent magnet 2 is installed between rotor 10 and the housing 1, the front end of rotor shaft 3 is equipped with commutator segment 9, blade 12 is equipped with in the rear end, a pair of brush 4 is arranged in the front cover of cavity, a pair of inductance 8 also is housed in the front end lid of cavity, and inductance 8 two ends are connected with brush 4 and the brush terminal 7 in the front cover respectively.This patent scheme, in the loop, seal in inductance, inductance value in the loop is increased, the characteristic of utilizing inductance opposing electric current to change, reduce the current changing rate of motorcar electric fuel pump unit time in the commutation process that runs up, the electromagnetic wave energy of generation is reduced, thereby reduce electromagnetic distrubance external circuit.
Above-mentioned solution owing to need a pair of inductance be installed in housing, require the space of housing bigger, but the spatial requirement of small-sized electric fuel pump housing is very little, and the space is not enough on the structure, can't this technology of directly transplanting.
The model utility content
The technical problems to be solved in the utility model provides a kind of electric fuel punp, can be applicable to the little spatial requirement of small-sized electric fuel pump housing.
For solving the problems of the technologies described above, electric fuel punp of the present utility model, comprise the metal pump case, inductance, positive and negative two power lines, positive and negative two power supply terminals, be packaged with rotor in the described metal pump case, permanent magnet, commutator segment, positive and negative two brushes, one end of positive and negative two brush terminals, described inductance, positive and negative two power lines, positive and negative two power supply terminals, the other end of positive and negative two brush terminals is arranged on outside the described metal pump case, described positive and negative two power lines are serially connected with respectively between described positive and negative two power supply terminals and described positive and negative two the brush terminals, and described inductance is serially connected with described power supply terminal with between the described brush terminal with described power line.
Described inductance can be positive and negative two inductance, and described positive inductance is serially connected with described positive power terminal with between the described positive brush terminal with described positive power line, and described negative inductance is serially connected with described negative power source terminal with between the described negative brush terminal with described negative power line.
Can also comprise an electric capacity, described electric capacity is arranged on outside the described metal pump case, and two ends join with described positive and negative two power lines respectively.
Described positive and negative two inductance, electric capacity, the part of positive and negative two power lines and an end of positive and negative two power supply terminals can be packaged together in injection moulding.
Described positive and negative two brushes are fixed on described metal pump case cavity one end by an insulation supporting sleeve, and an end outside metal pump case cavity of positive and negative two brushes connects positive and negative two brush terminals respectively, and an end is used to contact commutator segment in metal pump case cavity.
Can also be provided with earth tag, described earth tag with negative brush with metal pump case short circuit.
Electric fuel punp of the present utility model, in the metal pump case, be packaged with rotor, permanent magnet, commutator segment, positive and negative two brushes etc., tandem electric inductance in and power line metal pump case outside that link to each other with brush, and the indirect electric capacity of the power line outside the metal pump case, the current changing rate of unit time of reducing the motorcar electric fuel pump in the commutation process that runs up, the electromagnetic wave energy of generation is reduced, minimizing is to the electromagnetic distrubance of external circuit, and since described inductance and electric capacity be arranged on outside the described metal pump case, can not take the space of housing, can be applicable to the little spatial requirement of small-sized electric fuel pump housing.Because rotor, permanent magnet, commutator segment, positive and negative two devices such as brush are encapsulated within the described metal pump case, and described metal pump case with positive brush insulation and by earth tag with the negative brush short circuit, utilize metal pump shell joint ground, can realize effective shielding radiation emission distrubance source.
Description of drawings
Fig. 1 is existing a kind of electric fuel punp schematic representation;
Fig. 2 is electric fuel punp one a mode of execution schematic representation of the present utility model;
Fig. 3 is electric fuel punp one a preferred embodiment schematic representation of the present utility model;
Fig. 4 is another preferred embodiment schematic representation of electric fuel punp of the present utility model.
Embodiment
Electric fuel punp one mode of execution of the present utility model such as Fig. 2, shown in Figure 4, comprise metal pump case 1, positive and negative two inductance 21, positive and negative two power lines 22, positive and negative two power supply terminals 23, an electric capacity 24, be packaged with rotor in the described metal pump case 1, permanent magnet, commutator segment, positive and negative two brushes, one end of positive and negative two brush terminals 11, described positive and negative two brushes are fixed on described metal pump case 1 cavity one end by plastic support cover 2, an end outside metal pump case 1 cavity of positive and negative two brushes connects described positive and negative two brush terminals 11 respectively, an end is used to contact commutator segment in metal pump case 1 cavity, described positive and negative two inductance 21, positive and negative two power lines 22, positive and negative two power supply terminals 23, an electric capacity 24, the other end of positive and negative two brush terminals 11 is arranged on outside the described metal pump case 1, described positive inductance is serially connected with described positive power terminal with between the described positive brush terminal with described positive power line, described negative inductance is serially connected with described negative power source terminal with between the described negative brush terminal with described negative power line, and described electric capacity 24 two ends join with described positive and negative two power lines 22 respectively.And be provided with earth tag 31, described earth tag 31 with negative brush 32 with metal pump case 1 short circuit.
One preferred embodiment as shown in Figure 3, described positive and negative two inductance 21, electric capacity 24, the part of positive and negative two power lines 22 and an end injection moulding of positive and negative two power supply terminals 23 are packaged together, with protection inductance 21, electric capacity 24 and power line 22.
Electric fuel punp of the present utility model, in the metal pump case, be packaged with rotor, permanent magnet, commutator segment, positive and negative two brushes etc., tandem electric inductance in and power line metal pump case outside that link to each other with brush, and the indirect electric capacity of the power line outside the metal pump case, the current changing rate of unit time of reducing the motorcar electric fuel pump in the commutation process that runs up, the electromagnetic wave energy of generation is reduced, minimizing is to the electromagnetic distrubance of external circuit, and since described inductance and electric capacity be arranged on outside the described metal pump case, can not take the space of housing, can be applicable to the little spatial requirement of small-sized electric fuel pump housing.Because rotor, permanent magnet, commutator segment, positive and negative two devices such as brush are encapsulated within the described metal pump case, and described metal pump case with positive brush insulation and by earth tag with the negative brush short circuit, utilize metal pump shell joint ground, can realize effective shielding radiation emission distrubance source.Electric fuel punp of the present utility model has electromagnetic compatibility (EMC, Electro Magnetic Compatibility) preferably, and the EMC grade can reach 5 grades.
Claims (6)
1. electric fuel punp, it is characterized in that, comprise the metal pump case, inductance, positive and negative two power lines, positive and negative two power supply terminals, be packaged with rotor in the described metal pump case, permanent magnet, commutator segment, positive and negative two brushes, one end of positive and negative two brush terminals, described inductance, positive and negative two power lines, positive and negative two power supply terminals, the other end of positive and negative two brush terminals is arranged on outside the described metal pump case, described positive and negative two power lines are serially connected with respectively between described positive and negative two power supply terminals and described positive and negative two the brush terminals, and described inductance is serially connected with described power supply terminal with between the described brush terminal with described power line.
2. electric fuel punp according to claim 1, it is characterized in that, described inductance is positive and negative two inductance, described positive inductance is serially connected with described positive power terminal with between the described positive brush terminal with described positive power line, and described negative inductance is serially connected with described negative power source terminal with between the described negative brush terminal with described negative power line.
3. electric fuel punp according to claim 2 is characterized in that, also comprises an electric capacity, and described electric capacity is arranged on outside the described metal pump case, and two ends join with described positive and negative two power lines respectively.
4. electric fuel punp according to claim 3 is characterized in that, described positive and negative two inductance, electric capacity, the part of positive and negative two power lines and an end injection moulding of positive and negative two power supply terminals are packaged together.
5. according to claim 1,2,3 or 4 each described electric fuel punps, it is characterized in that, described positive and negative two brushes are fixed on described metal pump case cavity one end by an insulation supporting sleeve, an end outside metal pump case cavity of positive and negative two brushes connects positive and negative two brush terminals respectively, and an end is used to contact commutator segment in metal pump case cavity.
6. electric fuel punp according to claim 5 is characterized in that, also is provided with earth tag, described earth tag with negative brush with metal pump case short circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201734071U CN201705517U (en) | 2010-04-27 | 2010-04-27 | Electric fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201734071U CN201705517U (en) | 2010-04-27 | 2010-04-27 | Electric fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705517U true CN201705517U (en) | 2011-01-12 |
Family
ID=43442672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201734071U Expired - Lifetime CN201705517U (en) | 2010-04-27 | 2010-04-27 | Electric fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109952425A (en) * | 2016-10-20 | 2019-06-28 | 世倍特集团有限责任公司 | Petrolift |
-
2010
- 2010-04-27 CN CN2010201734071U patent/CN201705517U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109952425A (en) * | 2016-10-20 | 2019-06-28 | 世倍特集团有限责任公司 | Petrolift |
| US11199167B2 (en) | 2016-10-20 | 2021-12-14 | Vitesco Technologies GmbH | Fuel pump having a motor housing and pump housing against one another |
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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: 20110112 |
|
| CX01 | Expiry of patent term |