CN1627612A - Vehicle AC generator and its making method - Google Patents
Vehicle AC generator and its making method Download PDFInfo
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- CN1627612A CN1627612A CN 200410047168 CN200410047168A CN1627612A CN 1627612 A CN1627612 A CN 1627612A CN 200410047168 CN200410047168 CN 200410047168 CN 200410047168 A CN200410047168 A CN 200410047168A CN 1627612 A CN1627612 A CN 1627612A
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- lead
- binding post
- plate
- shaped member
- rectifier
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Abstract
Provided is an alternator for a vehicle, where stator winding and a rectifier can be joined surely with each other and the cost can be reduced, and its manufacturing method. The alternator for a vehicle is equipped with a rotor 3 to be rotated, a stator 2 where stator winding is wound, and the above rectifier 7 to which a lead wire 25 led out of the stator winding is connected via a joint 78 and which converts the AC voltage induced in the stator winding into DC voltage. The rectifier 7 has a joining terminal 76 to which the lead wire 25 is connected. The joint 78 is made by covering the periphery of the joining terminal 76 and the lead wire 25 with a metallic plate-shaped member 77.
Description
The cross reference of related application
The Japanese patent application No.2003-409182 that the application and on December 8th, 2003 propose is relevant, its full content at this with for referencial use.
Technical field
The application relates to a kind of vehicle-mounted dlternator, and it is suitable for being installed on passenger vehicle and the truck etc., and relates to a kind of relevant manufacture method.
Background technology
Vehicle-mounted dlternator has stator winding to produce electrical power, and this electrical power is got by the rectifier rectification that is connected to this stator winding.For this reason, the wire end of stator winding need be connected to the binding post of rectifier by some suitable methods.
For example, past attempts attempts taking such technology, the cross sectional shape that is arranged on the binding post in the rectifier terminal box is complementary with the cross sectional shape of the lead of tap from stator winding, thereby these parts are interconnected, disclose the disclosed content of No.2000-350426 (among 2-3 page or leaf and the accompanying drawing 1-9) temporarily as Japan Patent.
About the disclosed this technology of above-mentioned correlation technique, the shape of the binding post of rectifier and the cross sectional shape of lead need be complementary.Therefore, under having the situation of different cross sectional shapes and diameter of wire, the stator winding lead needs to prepare the multiple rectifier that forms difform binding post that has.Perhaps, change the terminal shape that need change rectifier under the situation of its cross sectional shape and diameter of wire at the stator winding lead at shell (case-by-case) on the pedestal of shell.Thereby the problem of appearance is that number of components and parts increases, and causes cost to increase.In addition, if form the conductor shape of stator winding, perhaps the specification of winding is former thereby change because of some, occurs the unmatched problem of cross sectional shape of the cross sectional shape and the binding post of stator winding lead so possibly.For example, be manufactured on the external small sized product in this case at vehicle-mounted dlternator, cause that possibly the winding data of employed stator winding and types of conductors change because of the simplification of production technology or the change of production equipment, and think that such stator winding and specification do not have the rectifier combination that changes.In this case, it is unstable that the annexation between lead and the binding post just becomes, and causes worrying the defect problem of syndeton.
Summary of the invention
The present invention is based on above-mentioned consideration realization and purpose and be to provide a kind of vehicle-mounted dlternator and manufacture method thereof, wherein stator winding can stably be connected each other with rectifier under situation about reducing cost.
For addressing the above problem, according to an aspect of the present invention, a kind of vehicle-mounted dlternator is provided, it comprises rotatable driving rotor, be wound with the stator of stator winding on it, and rectifier, to be connected to this rectifier by connecting portion be direct voltage with the AC voltage conversion that will respond in the stator winding to the lead of tap from stator winding.Rectifier comprises the binding post that is connected to lead, and the connecting portion that comprises the metal plate-like parts, and the periphery of binding post and lead is surrounded by this plate-shaped member.
By this structure, cover by this plate-shaped member in the periphery of the lead situation lower connecting terminal connected to one another of the binding post of rectifier and stator winding and lead and fastening, thereby guarantee that stator winding reliably is connected each other with rectifier.Equally, even occur not matching between the cross sectional shape of the shape of binding post and lead, also can avoid occurring between these parts the unsettled situation of annexation.Therefore, even the variant shape of pair of wire connection terminals that also do not need of the conductor cross-section shape of stator winding and diameter of wire changes.Equally, employed binding post makes the quantity of part reduce in rectifier or whole rectifier because of commercialization has been used, and cost is reduced.
In addition, above-mentioned binding post, lead and plate-shaped member are preferably mutually and weld.This makes stator winding and rectifier be connected to each other with reliable more form.
In addition, above-mentioned plate-shaped member can be formed with at least one through hole.This makes scolder flow into the inside of syndeton easily by this through hole, and binding post, and the space between lead and the plate-shaped member can be filled with scolder reliably, can further reduce the defective of syndeton.
In addition, above-mentioned plate-shaped member have one with lead facing surfaces, the shape that it preferably has and the surface profile of lead coincide.This can reduce the contact resistance between lead and the plate-shaped member and further realize good annexation.
In addition, above-mentioned binding post preferably has pancake or L shaped structure.This makes that binding post can be combined with the lead with various cross sectional shapes.Especially, use the binding post that forms L shaped structure to make the intensity of counter-bending or vibration increase, and the defective of effectively avoiding occurring as the wire fracture occur.
In addition, above-mentioned rectifier preferably has the terminal box that plastic resin is made, and the lead that can be connected to binding post is inserted into wherein and it forms the height that makes from the outstanding binding post of terminal box like this and matches with the width of plate-shaped member.This makes and carry out the position adjustment of plate-shaped member easily when adopting plate-shaped member formation connecting portion, thereby can simplify technology and reduce the variation of installing and locating.
In addition, above-mentioned lead is preferably formed by a plurality of conductors that are set parallel to each other.This makes that these a plurality of conductors can connect simultaneously when lead is covered by plate-shaped member, has further simplified technology than connecting a plurality of conductors successively.
According to a further aspect in the invention, a kind of method of making vehicle-mounted dlternator is provided, comprise that the first step will mate mutually from the position of the lead of stator winding tap and the position of rectifier binding post, second step surrounded with the periphery of metal plate-like parts with lead and binding post, and the 3rd step was deformed into plate-shaped member consistent with the profile of lead and binding post.
By this manufacture method, make these parts cover and secured to one another by only the position of the lead of the binding post of rectifier and stator winding being complementary with corresponding by plate-shaped member, stator winding can be connected each other reliably with rectifier.Equally, even do not match existing in shape between binding post and the conductor cross-section, also can avoid the unstable contact relation between these parts.Therefore, even there are differences, the cross sectional shape of stator winding and diameter of wire do not need to change the shape of binding post to satisfy all size yet, thereby employed binding post makes the quantity of part reduce in rectifier or whole rectifier because of commercialization has been used, and cost is reduced.
In addition, after above-mentioned the 3rd step, manufacture method of the present invention preferably included for the 4th step with binding post, lead and plate-shaped member welding.
By this welding step, stator winding and rectifier can be connected to each other in more reliable mode.
Description of drawings
For understanding the present invention better and show how to implement the present invention, referring now to accompanying drawing, only the form with demonstration is described specific embodiment of the present invention, wherein:
Fig. 1 is the sectional view of total that the vehicle-mounted dlternator of one embodiment of the invention is shown;
Fig. 2 shows the profile and the local cross section structure of stator.
Fig. 3 is the bottom view of rectifier;
Fig. 4 is the partial side view of rectifier;
Fig. 5 is the plane graph of binding post shown in Figure 4;
Fig. 6 shows lead and rectifier situation connected to one another;
Fig. 7 illustrates and sees lead and rectifier situation connected to one another from the side;
Fig. 8 is the assembling perspective view of plate-shaped member before;
Fig. 9 illustrates the variant that lead adopts the connecting portion of square-section;
Figure 10 is the perspective view that the variant of the plate-shaped member that is formed with through hole is shown.
Embodiment
Below, the vehicle-mounted dlternator to one embodiment of the invention with reference to the accompanying drawings is described.Though the form with example is described with reference to vehicle-mounted dlternator and relevant manufacture method, should be appreciated that the present invention also can be used for the AC generating of other fixed network such as family expenses or industry use here.
Fig. 1 is the integrally-built sectional view that the vehicle-mounted dlternator of one embodiment of the invention is shown.
Vehicle-mounted dlternator 1 shown in Figure 1 is by stator 2, rotor 3, side arm 4, after-frame 5, brush equipment 6, formations such as rectifier 7 and bonnet 9.
Fig. 2 is the profile of stator 2 and the schematic diagram of local cross section structure.
As shown in Figure 2, can be connected to the lead 25 of rectifier 7 from being wrapped in stator winding 23 taps in the stator core 22.With regard to current embodiment, each three phase winding that form stator winding 23 comprises two conductor parts that are parallel to each other and twine, and each conductor part has circular cross-section and covered by dielectric film.Each lead 25 is formed by two conductor parts parallel to each other, and each conductor part has circular cross-section.Equally, stator winding 23 comprises three phase windings that form the Y-connection, and three-phase conducting wire 25 also extracts another lead 25 from neutral point simultaneously from the terminal tap of each phase winding.
Rotor 3 forms sandwich structure, and wherein excitation winding 31 is clipped between the pole core 32 of excitation winding 31 both sides, and this excitation winding 31 is wound in columniform electric insulation copper cash and is formed by coaxial.Each pole core 32 has six portions of grabbing and only is fixed on the rotating shaft 33 that is used to rotate.In addition, as welding or the similar cooling fan 35 that is equipped with on the end face of front side pole core 32, the cold wind of side suction blows out to cool off each parts vertically and radially by this cooling fan 35 in the past by certain suitable mode.Equally, as welding or the similar cooling fan 36 that is equipped with on the end face of another pole core 32 of rear side, the cold wind that sucks from rear side blows out vertically and radially by this cooling fan 35 by certain suitable mode.In addition, be provided with two collector rings 37,38 near the end of rear side rotating shaft 33, its two ends that are electrically connected to excitation winding 31 are used for electric power is provided to excitation winding 31 from brush equipment 6.
Side arm 4 and after-frame 5 interconnect in the mode of surrounding stator 2 and rotor 3.Rotor 3 is fixed on the rotating shaft 33 to pivot in stator 2 inside.Side arm 4 and after-frame 5 be support stator 2 tightly, between the outward flange of the inward flange of stator 2 and pole core 32 a given air gap is arranged.Be formed with lug boss 44 on the side arm 4, bearing 43 tightly is installed to this lug boss 44.
Further, side arm 4 has ring edge and anterior axial end, this ring edge is formed with ventilation window 41, being used for cold wind with near position ventilates to the front end face from the stator winding 23 of the anterior axial end projection of stator core 22, this front portion axial end is formed with air and enters window 42, is used for cold air is sucked from the outside.Equally, after-frame 5 has ring edge and rear portion axial end, this ring edge is formed with ventilation window 51, being used for cold wind with near position ventilates to the rear end face from the stator winding 23 of the rear portion axial end projection of stator core 22, this rear portion axial end is formed with air and enters window 52, is used for cold air is sucked from the outside.
Brush equipment 6 is used to make exciting current to flow to the excitation winding 31 of rotor 3 from rectifier 7, and comprises and be formed on the keep-up pressure brush 61,62 of contact of collector ring 37,38 on the rotating shaft 33 of rotor 3.Rectifier 7 is used for the three-phase alternating voltage rectification with the output voltage of threephase stator winding 23, to obtain VD.Bonnet 9 is used to hide electric component, and as brush equipment 6, rectifier 7 and IC adjuster 8 or the like are to protect these elements.
To describe rectifier 7 in detail below.Fig. 3 is the bottom view of rectifier 7.As shown in figs. 1 and 3, rectifier 7 constitutes has negative pole fin 72, the terminal box 75 of positive pole radiating fin 74 and plastic resin system, wherein negative pole rectifier cell 71 is connected to this negative pole fin 72 by suitable mode as welding or pressure assembling, anodal rectifier cell 73 is connected to this positive pole radiating fin 74 by suitable mode as welding or pressure assembling, and negative pole fin 72 and positive pole radiating fin 74 tightly are fixed to terminal box 75 and inner distribution extends by this terminal box 75.Terminal box 75 has the binding post made from infix form 76.Utilize this binding post 76 feasible rectifier cell 73 lead connections mutually that are connected to the rectifier cell 71 of negative pole fin 72 and are connected to positive pole radiating fin 74, thereby constitute three-phase full wave rectifier circuit by the conductor part (not shown) that is inserted into terminal box 75.
Fig. 4 is the partial side view of rectifier 7 and the peripheral structure that shows the binding post 76 that exposes from terminal box 75.And Fig. 5 is the plane graph of binding post 76.In addition, these accompanying drawings show the partial structurtes of standard rectifier 7, and Fig. 6 and 7 shows the situation that is connected to rectifier 7 from the lead 25 of stator winding 23 taps.
Shown in Fig. 6 and 7, binding post 76 has the protuberance that extends from terminal box 75, and it has L shaped cross section.Comprise two electric conductor 25A that the surface contacts with L shaped binding post 76,25B from the lead 25 of stator winding 23 taps.Equally, for current embodiment, under the situation that lead 25 and binding post 76 keep in touch, binding post 76 surrounds with the plate-shaped member 77 that the outer cause metal (as zinc-plated steel plate or similar) of lead 25 is made, thereby forms connecting portion 78.Further, as shown in Figure 6, plate-shaped member 77 has and the substantially quite determined width of giving prominence to the binding post 76 that forms connecting portion 78 from terminal box 75 under the situation that adopts plate-shaped member 77 of height (length of vertical direction Fig. 6), and the end of plate-shaped member 77 aligns substantially with binding post 76.
Fig. 8 is the perspective view of plate-shaped member 77 before assembling.As shown in Figure 8, plate-shaped member 77 has the U-shaped cross section before the assembling.Plate-shaped member 77 is assembled into a feasible surface and two apparent surface 77A with the binding post 76 in L shaped cross section on binding post 76 and the lead 25, a surperficial 77A among the 77B keeps in touch in Zone Full substantially, and another surface and two apparent surface 77A of binding post 76, the surperficial 77C of another outside the 77B keeps in touch in Zone Full substantially.Therefore, two apparent surface 77A of plate-shaped member 77,77B, another surperficial 77C (surface of not keeping in touch with binding post 76) is by from external compression and distortion, make and surround two electric conductor 25A that form lead 25,25B is consistent with the shape of these parts, thereby forms connecting portion 78.
Be the embodiment of mode of operation below, this mode of operation makes lead 25 be connected at connecting portion 78 with binding post 26;
(1) mates (first step) in position from the lead 25 of stator winding 23 taps and the binding post 76 of rectifier 7.
(2) whole from the lead 25 and the binding post 76 of stator winding 23 taps by plate-shaped member 77 encirclements (second step) with U-shaped cross section.
(3) plate-shaped member 77 deformation are the shape consistent (the 3rd step) with lead 25 and binding post 76.
(4) with binding post 76, lead 25 and plate-shaped member 77 welding (the 4th step).
Therefore, vehicle-mounted dlternator 1 for current embodiment, by being fixed on the appropriate location by the lead 25 with the binding post 76 of rectifier 7 and stator winding 23 metal plate-like parts 77 are covered the outer rim of binding post 76 and lead 25, stator winding 23 and rectifier 7 can be connected to each other in reliable mode.Equally, even be not complementary (promptly between the cross section of the shape of binding post 76 and lead 25, among the current embodiment, lead 25 has circular cross-section and binding post 76 forms the situation in L shaped cross section), also can avoid the unstable contact relation between these parts.Therefore, even difference appears in the cross section or the diameter of wire of the lead 25 of stator winding 23, do not need to make the alteration of form of binding post 76 for consistent with the cross section or the diameter of wire of lead 25 yet.Such result is that employed binding post 76 makes the quantity of part reduce in rectifier 7 or whole rectifier 7 because of commercialization has been used, thereby cost is reduced.Especially, because binding post 76, lead 25 and plate-shaped member 77 weld each other, so stator winding 23 and rectifier 7 can interconnect more reliably.
Further, plate-shaped member 77 after the deformation has towards the surface of lead 25, it has the shape consistent with the surface topography of lead 25, and therefore can reduce the contact impedance between lead 25 and the plate-shaped member 77, makes can access better annexation in wiring.
Further, binding post 76 has L shaped structure and can be combined with other lead of the lead 25 of circular cross-section and various cross sectional shapes.Especially binding post 76 forms the intensity that L shaped cross section can increase the crooked and vibration of opposing, thereby can avoid taking place the phenomenon as the wire fracture.
Further, rectifier 7 comprises the terminal box 75 that plastic resin is made, and the conductor part that is connected to binding post 76 is inserted into this terminal box 75, and the width with plate-shaped member 77 is suitable substantially from the height of the outstanding binding post 76 of terminal box 75.This feasible position correction of realizing plate-shaped member 77 when utilizing plate-shaped member 77 to form connecting portions 78 easily can be simplified technology and reduce the variation of installation site.
In addition, the present invention is not limited to top listed embodiment but can carries out various replacements within the spirit and scope of the present invention, revises and distortion.Though the foregoing description is described in conjunction with schematic situation, wherein by two electric conductor 25A with circular cross-section, the lead 25 that 25B constitutes is connected at connecting portion 78 with binding post 76, but should be appreciated that the present invention also can be applied to have the lead of square-section or other shape.For example, in the example as shown in Figure 9, the lead 124 with square-section is placed on the connecting portion 78, and the outer cause plate-shaped member 77 of lead 124 and binding post 76 covers to realize reliable annexation simultaneously.
In addition, though in the situation shown in Figure 9, shown lead 124 comprises single electric conductor, lead also can be formed by each two (or more than two) electric conductor with square-section.Among another embodiment, even each that adopts current embodiment has the lead that the electric conductor of circular cross-section forms, lead also can be formed by single electric conductor.
Further, for current embodiment, though welding job after plate-shaped member deformation, carry out, at plate-shaped member 77, under the less situation of contact impedance between binding post 76 and the lead 25 or the electric current that flows through connecting portion 78 be positioned under the low level situation, also can omit welding job.Among another embodiment, as shown in figure 10, adopt plate-shaped member 177, make scolder flow to the inside of plate-shaped member 177 by through hole 178 with sidewall that is formed with one or more (Figure 10 shows that two positions) through hole 178.This makes scolder flow to easily to be coated with the whole interior zone of plate-shaped member 177, and binding post 76, gap between lead 25 and the plate-shaped member 177 can be filled in reliable mode by scolder, can further reduce to occur in the scolder connection possibility of defective.
In addition, for current embodiment, though have L shaped cross section binding post 76 and the plate-shaped member 77 with U-shaped cross section before installation steps, just combine, before installation steps, also can adopt plate-shaped member with simple shape such as pancake or L shaped cross section.Equally, can be used for during installation steps deformation to surround whole binding post 76 and lead 25 at the plate-shaped member that has pancake or L shaped cross section before the installation steps.Among another embodiment, the public end of plate-shaped member 77 can overlappedly be placed after the deformation step.
In addition, among the current embodiment, though suitable with the length of plate-shaped member 77 from the height of the part of the outstanding binding post 76 of terminal box 75, plate-shaped member 77 is can be than the height of binding post 76 long or lack.Equally, though plate-shaped member 7 be assembled into and form connecting portion 78 and make and adjoin engagement with terminal box 75 maintenances that plate-shaped member 77 can be assembled like this and make the plate-shaped member 77 and the end face of terminal box 75 separate in end near the plate-shaped member 77 of terminal box 75.
In addition, among the current embodiment, though weld after plate-shaped member 77 deformation, plate-shaped member 77 can be adhesively fixed in place to substitute welding.
Though specific embodiment of the present invention is described in detail, be it should be appreciated by those skilled in the art that those skilled in the art can carry out various modifications and replacement to these details under the enlightenment of its disclosure.Therefore, disclosed specific arrangements only is to illustrate rather than to the restriction of invention scope, its four corner and all equivalence of having contained following claim is replaced.
Claims (9)
1. a vehicle-mounted dlternator comprises
Rotatable driving rotor;
Be wound with the stator of stator winding on it; With
Rectifier is connected to this rectifier from the lead of stator winding tap by connecting portion, is direct voltage in order to the AC voltage conversion that will respond in the stator winding;
Wherein rectifier comprises the binding post that connects lead, and connecting portion comprises the metal plate-like parts, surrounds the outer rim of binding post and lead by this plate-shaped member.
2. vehicle-mounted dlternator according to claim 1, its middle connecting terminal, lead and plate-shaped member are welded to each other.
3. vehicle-mounted dlternator according to claim 2, wherein plate-shaped member is formed with at least one through hole.
4. according to the arbitrary described vehicle-mounted dlternator of claim 1-3, wherein plate-shaped member has a surface towards lead, and it forms has the shape of coincideing with the surface topography of lead.
5. according to the arbitrary described vehicle-mounted dlternator of claim 1-4, its middle connecting terminal has pancake or L shaped structure.
6. according to the arbitrary described vehicle-mounted dlternator of claim 1-5, wherein rectifier comprises the terminal box that plastic resin is made, the lead that is connected to binding post is inserted into this terminal box, and wherein the width from the height of the outstanding binding post of terminal box and plate-shaped member is suitable substantially.
7. according to the arbitrary described vehicle-mounted dlternator of claim 1-6, wherein lead is formed by a plurality of electric conductors that are arranged in parallel.
8. method of making vehicle-mounted dlternator comprises:
The first step will be complementary from the position of the binding post of the position of the lead of stator winding tap and rectifier;
Second step, the outer rim of surrounding lead and binding post with the metal plate-like parts; And
In the 3rd step, make plate-shaped member deformation for consistent with the profile of lead and binding post.
9. the method for manufacturing vehicle-mounted dlternator according to claim 8 further comprises, after the 3rd step:
The 4th step, with binding post, lead and plate-shaped member welding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP409182/03 | 2003-12-08 | ||
| JP409182/2003 | 2003-12-08 | ||
| JP2003409182A JP4259305B2 (en) | 2003-12-08 | 2003-12-08 | AC generator for vehicle and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1627612A true CN1627612A (en) | 2005-06-15 |
| CN1627612B CN1627612B (en) | 2012-06-20 |
Family
ID=34730638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410047168 Expired - Fee Related CN1627612B (en) | 2003-12-08 | 2004-12-08 | Vehicle AC generator and its making method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4259305B2 (en) |
| CN (1) | CN1627612B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4404112B2 (en) | 2007-08-03 | 2010-01-27 | 株式会社デンソー | Vehicle alternator |
| WO2015040943A1 (en) * | 2013-09-19 | 2015-03-26 | 株式会社パイオラックス | Bus ring |
| CN114244027B (en) * | 2021-12-21 | 2023-09-19 | 成都华川电装有限责任公司 | Rectifier guide structure of alternating current generator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5833946A (en) * | 1981-08-20 | 1983-02-28 | Matsushita Electric Ind Co Ltd | Lead wire connecting method for stator of rotary electric machine |
| JP3578142B2 (en) * | 2002-01-15 | 2004-10-20 | 株式会社日立製作所 | Connection structure, connection method thereof, rotating electric machine and AC generator using the same |
| JP3724375B2 (en) * | 2000-02-01 | 2005-12-07 | 株式会社デンソー | Vehicle alternator |
| US6555937B2 (en) * | 2000-02-01 | 2003-04-29 | Denso Corporation | Vehicle alternator rectifier having L-shaped connection terminals |
-
2003
- 2003-12-08 JP JP2003409182A patent/JP4259305B2/en not_active Expired - Fee Related
-
2004
- 2004-12-08 CN CN 200410047168 patent/CN1627612B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1627612B (en) | 2012-06-20 |
| JP4259305B2 (en) | 2009-04-30 |
| JP2005176423A (en) | 2005-06-30 |
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