CN1311611C - Metallic brush bracing arrangement of automobile AC generator - Google Patents
Metallic brush bracing arrangement of automobile AC generator Download PDFInfo
- Publication number
- CN1311611C CN1311611C CNB2003101006581A CN200310100658A CN1311611C CN 1311611 C CN1311611 C CN 1311611C CN B2003101006581 A CNB2003101006581 A CN B2003101006581A CN 200310100658 A CN200310100658 A CN 200310100658A CN 1311611 C CN1311611 C CN 1311611C
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- Prior art keywords
- brush
- bracket
- tail
- cylindrical portion
- air
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- Motor Or Generator Cooling System (AREA)
Abstract
The present invention relates to an electric brush supporting device of an AC generator for automobiles. The electric brush supporting component (62) of the electric brush supporting device (60) is composed of a cylinder part (62a) for coating a conducting ring (50), and a supporting part (62b) capable of being provided with an electric brush (61) in the direction perpendicular to the cylinder part, wherein an air flowing-in port (62c) is formed on the side end surface of the cylinder part so that air flows into the periphery of the electric brush (61); a shaft hole (21a) not contacting the circumferential surface of the conducting ring (50) and a first guiding hole (21b) formed between the shaft hole and the periphery of a cooling fan (31) are formed on a back bracket (21), and a sealing piece (20) for preventing the air from flowing to a rectifying device (70) is arranged between the inner segment of the cylinder part (62a) of the electric brush supporting component (62) and the periphery of the shaft hole (21a) of the back bracket (21).
Description
Technical field
The present invention relates to the brush bracing or strutting arrangement of motorcar alternator, in more detail, the brush conducting ring partly is arranged at the tail-bracket outside, the coated with conductive loop section also passes air into and flows out, by assembling like this through improved brush support component, so that the brush powder that brush generates discharges easily along described brush support component inside.
Background technology
Usually, motorcar alternator is formed by being located at the stator between the carriage of front and back and being located at its central rotor, by brush and the conducting ring coil midstream overexcitation electric current at described rotor, the three-phase alternating current that produces in stator coil becomes direct current after being arranged on rectifier rectification on the tail-bracket.
So in the existing alternating current generator that uses, brushgear has structure as shown in Figure 1.
Promptly, the axle 10 of rotor is by bearing 24 supportings that are located at tail-bracket 21 central authorities, be provided with the conducting ring 50 of the first terminal 51 and second terminal 52 in the inner segment portion of axle 10, described the first terminal 51 links to each other with rotor coil lead-in wire 41, and second terminal 52 is connected with brush 61.
At this moment, described brush 61 is coated by brush support component 62, establish at the rear end of its brush 61 bullet to be used to make its front end to contact spring 64 at conducting ring 50 all the time, and the terminal of this spring 64 is pushed down by the top of brush support component 62.
But this existing brush support component 62 comes because of the brush powder can not be discharged from, thereby and residue in inside and cause short circuit, and then shorten the generator life-span.
Promptly, existing brush support component 62 as shown in Figure 1, flowing of air can not be arranged around the brush that contacts with conducting ring, again by 53 coatings such as grade of conducting ring guide, the discharge difficulty of brush powder, especially damage bearing when the brush powder flow into bearing 24 is provided with seal for this reason, but still has the problem that can not fully block.
Summary of the invention
The present invention makes in view of the problems referred to above of the prior art, its main purpose is to form air inflow aperture and air outflow port on the brush support component, form on tail-bracket and the corresponding air vent hole of described brush support component air outflow port, the brush powder that the wearing and tearing because of brush are produced can not adhere to bearing and deposit or flow into the termination contact part.
To achieve these goals, the brush support component of described brush bracing or strutting arrangement by the cylindrical portion of coated with conductive ring and be used on perpendicular to the direction of described cylindrical portion can in establish brush the support portion constitute, and around thereby formation air inflow aperture in the side end face of described cylindrical portion allows air to flow into brush, on described tail-bracket, form and bump, between the axis hole of the cylindrical portion inner segment of described brush support component and described tail-bracket, be provided for blocking air to the mobile seal of rectifying device direction less than the axis hole of the periphery of described conducting ring with by first bullport that forms from described axis hole to described cooling fan.
Description of drawings
Fig. 1 is existing brush bracing or strutting arrangement profile;
Fig. 2 is the alternating current generator profile of embodiments of the invention;
Fig. 3 is the seal configuration figure of Fig. 2;
Fig. 4 is the brush support component profile of another embodiment of the present invention.
Embodiment
The effect that describes formation of the present invention in detail and bring below by accompanying drawing by its structure.
Fig. 2 is the alternating current generator of the embodiment of the invention 1 and the profile of its inner brush support component, and Fig. 3 is the pie graph of seal.Fig. 4 is the brush support component figure of the embodiment of the invention 2.
At first, alternating current generator of the present invention is applicable to rear end cap 23 types that have shown in Figure 2.
Alternating current generator is by front rack 22 that has a support and tail-bracket 21, be combined in the rear end cap 23 at its rear, the bearing 24 that is arranged on the central authorities of described front and back carriage supports and has at its leading portion the axle 10 of belt pulley 11, be located at the stage casing of described axle and at the fixing rotor 30 of cooling fan 31 of its front and back sides, between the carriage of described front and back, coat the stator 40 of described rotor, be fixed in described axle back segment portion and be used for conducting ring 50 to described rotor power supply, a pair of brush 61 with the conducting ring sliding contact, accommodate the brush bracing or strutting arrangement 60 of this brush, rectifier unit that contains fin 70 that is electrically connected with described stator and the voltage regulator that is adjusted in the alternating voltage size that produces in the described stator 80 are formed.
Embodiment 1
The structure of embodiment 1 is the structure of having improved brush support component 62, the structure of tail-bracket 21 and the structure behind the seal 20.
Promptly, when forming described brush support component 62, form the cylindrical portion 62a of coated with conductive ring 50 and on perpendicular to the direction of described cylindrical portion 62a can in establish the brush support portion 62b of brush 61, around thereby the side end face of described cylindrical portion 62a formation air inflow aperture 62c allows air to flow into brush, on described tail-bracket 21, form and bump less than the axis hole 21a of described conducting ring 50 peripheries and the first bullport 21b that forms around from described axis hole to described cooling fan 31, between around the axis hole 21a of the inner segment of the cylindrical portion 62a of described brush support component 62 and tail-bracket 21, be provided for blocking air to the mobile seal 20 of rectifier unit 70 directions.
Be used to block its upper interior and push down brush 61 and the stator 65 of brush usefulness spring 64 inner insertion of the support portion of described brush support component 62 62b, cover seal cover 63 in order to prevent moisture and foreign matter from invading described support portion 62b inside in its outside.
So the embodiments of the invention 1 that constitute can be discharged the brush powder.
When rotor 30 rotates, the brush 61 that is contacted with conducting ring 50 produces the brush powder because of friction, and the brush powder that is produced is carried by the air inflow aperture 62c leaked-in air by brush support component 62 and discharges from the first bullport 21b that is formed at tail-bracket 21.
Air flows among the embodiment 1 is to make the cooling fan 31 of rotor 30 both sides that force air moves and produce by mind-set circumferencial direction from axle 10, discharges by the hole around air inflow aperture 62c, the brush, around the first bullport 21b and the tail-bracket 21.
At this moment, bearing 24 is exposed in the middle of the first bullport 21b.
Because of seal 20 be arranged at around the described axis hole 21a and the cylindrical portion 62a inner segment of brush support component 62 between, so can not flow to rectifying device 70 1 sides along the first bullport 21b flow air, and flow along circumferencial direction around cooling fan, so the brush powder can not flow into terminal connecting portion one side of conducting ring.
Embodiment 2
The structure of embodiment 2 also is the structure of having improved behind brush support component 62, tail-bracket 21 and the seal 20.
When forming described brush support component 62, form the cylindrical portion 62a of coated with conductive ring 50 and on perpendicular to the direction of described cylindrical portion 62a can in establish the brush support portion 62b of brush 61, side end face at described cylindrical portion 62a forms air inflow aperture 62c, thereby forming air guiding groove 62d to the inboard of described support portion 62b flows through around the described brush 61 air, on butt 21, form the second bullport 21c of the air guiding groove 62d that is communicated in described support portion 62b, between the axis hole 21a on the cylindrical portion 62a of described brush support component 62 inner segment and the described tail-bracket 21, be provided for blocking seal 20 to rectifying device 70 flow air of its inboard bearing 24 and its outline.
Also in the inner 62b in the support portion of described brush support component 62, insert among the embodiment 2 be used to block its top and push down brush 61 and brush with the stator 65 of spring 64, cover seal cover 63 in its outside in order to prevent moisture and impurity from invading the inside of described support portion 62b.
So the embodiments of the invention 2 that constitute can be discharged the brush powder.
When rotor 30 rotates, the brush 61 that is contacted with conducting ring 50 produces the brush powder because of friction, the brush powder that is produced is carried by the air inflow aperture 62c leaked-in air by brush support component 62 and flows along the air guiding groove 62d that is located at brush support component 62 inboards, discharges by the second bullport 21c that is formed at tail-bracket 21 again.
The air flows of this moment is also the same with embodiment 1 to be to make the cooling fan 31 of rotor 30 both sides that force air moves and produce by mind-set circumferencial direction from axle 10, discharges by the hole around air inflow aperture 62c, the brush, around air guiding groove 62d, bullport 21b and the tail-bracket 21.
In embodiment 2, bearing 24 is not exposed to the centre of the air guiding groove 62d or the second bullport 21c.
Also be arranged at around the axis hole 21a because of seal 20 this moment and the inner segment of the cylindrical portion 62a of brush support component 62 between, so can not flow to bearing and conducting ring terminal part along air guiding groove 62d flow air, can not flow to a side of rectifying device 70 yet, and along the circumferential direction flow around cooling fan, so the brush powder can not adhere to inner pith.
In addition, when establishing brush 61 in brush support component 62, because stator 65 is set and can opens and closes the seal cover 63 on its top, thus easy to assembly, and help preventing the intrusion of moisture and foreign matter.
As mentioned above, the present invention forms air inflow aperture and air guiding groove on the brush support component, on tail-bracket in the shape air outflow port, between brush support component and tail-bracket, conducting ring is set, can all forces along with the air flows that produces by cooling fan to discharge so result from the interior brush powder of the cylindrical portion of brush support component.
And, thereby can prevent in advance that as before to remain in brush support component and generator inner and be collected in the short circuit phenomenon that pith and terminal part cause because of the brush powder, and then have the advantage that can prolong the whole generator life-span.
Claims (3)
1. the brush bracing or strutting arrangement of a motorcar alternator, this motorcar alternator is by tail-bracket that has a support (21) and front rack (22), the bearing (24) that is arranged on the central authorities of described front and back carriage supports and its front end has the axle (10) of belt pulley (11), be located at described axle stage casing and at the fixing rotor (30) of cooling fan (31) of its front and back sides, between the carriage of described front and back, coat the stator (40) of described rotor, the back segment portion of being fixed in described axle is used for the conducting ring (50) to described rotor power supply, a pair of brush (61) with the conducting ring sliding contact, accommodate the brush bracing or strutting arrangement (60) of described brush, rectifying device that contains fin (70) that is electrically connected with described stator and adjusting are made up of the voltage regulator (80) of the alternating voltage that described stator sends, and it is characterized in that:
The brush support component (62) of described brush bracing or strutting arrangement (60) by the cylindrical portion (62a) of coated with conductive ring (50) and on perpendicular to the direction of described cylindrical portion can in establish brush (61) brush support portion (62b) constitute, and form air inflow aperture (62c) in the side end face of described cylindrical portion (62a) thus allow air to flow into brush (61) on every side
Go up to form at described tail-bracket (21) and to bump less than the axis hole (21a) of the periphery of described conducting ring (50) with from described axis hole to described cooling fan (31) and the 1st bullport (21b) that forms,
Between the axis hole (21a) of cylindrical portion (62a) inner segment of described brush support component (62) and described tail-bracket (21), be provided for the seal (20) that blocking-up stream air flows to rectifying device (70) direction.
2. according to the brush bracing or strutting arrangement of the described motorcar alternator of claim 1, it is characterized in that:
The inner insertion is used to block its top and pushes down brush (61) and the stator (65) of brush usefulness spring (64) in the brush support portion of described brush support component (62) (62b), covers seal cover (63) in its outside in order to prevent moisture and foreign matter from invading inside, described brush support portion (62b).
3. the brush bracing or strutting arrangement of a motorcar alternator, this motorcar alternator is by tail-bracket that has a support (21) and front rack (22), the bearing (24) that is arranged on the central authorities of described front and back carriage supports and its front end has the axle (10) of belt pulley (11), be located at described axle stage casing and at the fixing rotor (30) of cooling fan (31) of its front and back sides, between the carriage of described front and back, coat the stator (40) of described rotor, the back segment portion of being fixed in described axle is used for the conducting ring (50) to described rotor power supply, a pair of brush (61) with the conducting ring sliding contact, accommodate the brush bracing or strutting arrangement (60) of described brush, rectifying device that contains fin (70) that is electrically connected with described stator and adjusting are made up of the voltage regulator (80) of the alternating voltage that described stator sends, and it is characterized in that:
The brush support component (62) of described brush bracing or strutting arrangement (60) by the cylindrical portion (62a) of coated with conductive ring (50) and on perpendicular to the direction of described cylindrical portion can in establish brush (61) brush support portion (62b) constitute, and the side end face in described cylindrical portion (62a) forms air inflow aperture (62c), form air guiding groove (62d) in the inboard of described brush support portion (62b) thus allow air to flow into brush (61) on every side
Go up the 2nd bullport (21c) that formation is communicated with the air guiding groove (62d) of described brush support portion (62b) at described tail-bracket (21),
Between the axis hole (21a) of cylindrical portion (62a) inner segment of described brush support component (62) and described tail-bracket (21), be provided for blocking rectifying device (70) direction mobile of the outline of the bearing (24) of inboard of the described tail-bracket of air flow (21) and described tail-bracket (21) with seal (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101006581A CN1311611C (en) | 2003-10-10 | 2003-10-10 | Metallic brush bracing arrangement of automobile AC generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101006581A CN1311611C (en) | 2003-10-10 | 2003-10-10 | Metallic brush bracing arrangement of automobile AC generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1606212A CN1606212A (en) | 2005-04-13 |
| CN1311611C true CN1311611C (en) | 2007-04-18 |
Family
ID=34756026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101006581A Expired - Fee Related CN1311611C (en) | 2003-10-10 | 2003-10-10 | Metallic brush bracing arrangement of automobile AC generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1311611C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976187A (en) * | 2011-09-02 | 2013-03-20 | 上海三菱电梯有限公司 | Traction machine for elevator |
| CN107996016B (en) * | 2015-08-06 | 2020-01-17 | 三菱电机株式会社 | Rotating electric machine for vehicle |
| CN105743265B (en) * | 2016-04-14 | 2017-12-29 | 锦州汉拿电机有限公司 | Belt driven type starting-generating all-in-one |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05111222A (en) * | 1991-10-15 | 1993-04-30 | Mitsubishi Electric Corp | Ac generator for vehicle |
| US6169344B1 (en) * | 1999-02-23 | 2001-01-02 | Mitsubishi Denki Kabushiki Kaisha | Alternating current generator for vehicle |
| CN1062687C (en) * | 1996-04-16 | 2001-02-28 | 瓦莱奥万都电子系统韩国有限公司 | Rectifier for vehicle alternator |
-
2003
- 2003-10-10 CN CNB2003101006581A patent/CN1311611C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05111222A (en) * | 1991-10-15 | 1993-04-30 | Mitsubishi Electric Corp | Ac generator for vehicle |
| CN1062687C (en) * | 1996-04-16 | 2001-02-28 | 瓦莱奥万都电子系统韩国有限公司 | Rectifier for vehicle alternator |
| US6169344B1 (en) * | 1999-02-23 | 2001-01-02 | Mitsubishi Denki Kabushiki Kaisha | Alternating current generator for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1606212A (en) | 2005-04-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070418 Termination date: 20201010 |