CN102913361B

CN102913361B - Starting engine and with rotating the starting relay in stop portion and its manufacture method

Info

Publication number: CN102913361B
Application number: CN201210279592.6A
Authority: CN
Inventors: V·泽尔瓦姆; B·芬卡塔苏布拉马尼安
Original assignee: Robert Bosch GmbH
Current assignee: SEG Automotive Germany GmbH
Priority date: 2011-08-05
Filing date: 2012-08-03
Publication date: 2016-06-08
Anticipated expiration: 2032-08-03
Also published as: CN102913361A; DE102011080477B4; FR2978861B1; FR2978861A1; DE102011080477A1

Abstract

The present invention relates to a kind of for trigger mechanism (10), it is particularly useful for starting the starting relay (13) of oil engine starting engine used, it contact device (20) comprising magnetic core (24) and comprising switch axle (21), wherein, described switch axle (21) is at one end can be bearing in the way of moving in described magnetic core (24), and wherein, it is configured with motion stop portion (30) at described contact device (20) and/or described magnetic core (24) place, with other parts of the rotation and/or described contact device (20) of avoiding described magnetic core (24) at least in part relative to the axial motion of described switch axle (21), the present invention also relates to a kind of trigger mechanism, in particular for starting the starting engine of oil engine, it comprises the starting relay according to the present invention (13), further, the present invention relates to the method that one comprises the step for the manufacture of starting relay (13).

Description

Starting engine and with rotating the starting relay in stop portion and its manufacture method

Technical field

The present invention relates to a kind of starting relay for trigger mechanism, in particular for starting the starting relay of the starting engine of oil engine, described starting relay comprises magnetic core and comprises the contact device of switch axle, wherein, described switch axle is at one end can be bearing in described magnetic core in the way of moving.

In addition, the present invention relates to a kind of trigger mechanism, in particular for starting the starting engine of oil engine, it comprises the connection rly. for connecting engagement process.

In addition, the present invention relates to a kind of method for the manufacture of starting relay, this starting relay is with magnetic core and the contact device comprising switch axle, and wherein, switch axle is at one end bearing in magnetic core movingly.

Background technology

The present invention is based on a kind of system with starting engine or starting motor and a kind of with internal reduction device with for the starting engine of the transmission rig that reduces rotating speed while improving moment of torsion, it comprises starting relay, described starting relay comprises magnetic core and comprises the contact device of switch axle, wherein, described switch axle is at one end can be bearing in described magnetic core in the way of moving.

The theme of the present invention is for the starting engine of the vehicle of oil engine and trigger and especially starting relay for being applied in starting engine.

From known in the state of the art for the vehicle with oil engine and the trigger with starting relay, it generally includes direct-current machine for driving oil engine.

In such starting engine or starting motor, such as, it is responsible for for the engagement in gear ring or stroke with the rly. shift fork system of corresponding rly.. At stroke, also referred to as spacing, or saying more accurately in gear motion, electromagnetic relay pulls shift fork backward. This is by correspondingly realizing to relay power. When being energized, axially move towards the direction of contact with the switch axle of magnetic core acting in conjunction or move away from contact. It is positioned on switch axle for contact by the contact bridge shape contact pin that make spring is tight in advance to interact. By the motion of switch axle, contact bridge shape contact pin contact contact.

From file EP778600A1, become known for the starting relay of motor vehicle, wherein, between the rest position front drawn and the active position being pulled, movable contact by can axially slide mobile in the way of be bearing on the middleware of cylindricality switch axle. By elastic return unit axially towards the contact applied load that the rest position of movable contact is movable to this. The supporting surface of movable contact and the stop surface acting in conjunction of switch axle, determine the rest position of movable contact for reference switch axle. Switch axle comprises the accommodation section at center, this switch axle is laterally run through in this accommodation section from side to another side, and the athwartship plane being positioned at rear portion in this accommodation section forms the supporting surface of the elastic reset part for movable contact, and this elastic reset part abuts on the face being positioned at rear portion of movable contact in addition. Movable contact abuts in the axial stop surface of the middleware front portion being arranged in switch axle by being positioned at anterior face in the rest position front drawn at switch axle place.

Such rly. is arranged in casing of relay. At this, contact configuration, in case lid or in case lid, axially extends to switch axle. In order to realize the predetermined contact of contact bridge shape contact pin and contact, lid has region that surround, unlimited towards the direction of switch axle by wall, the contact mostly comprising pole, two contacts is arranged in this region, and contact bridge shape contact pin is directed in this region to contact with contact. Wall has relative big gap each other with contact bridge shape contact pin. Correspondingly, the contact pin of contact bridge shape can carry out rotary motion at least a little within the region limited by wall. At this, can causing abrasion according to material is secondary due to the contact between contact bridge shape contact pin and wall, abrasion concentrates in the region of contact and the contact worsened during this place causes work-ing life.

Summary of the invention

Compared with prior art, have the following advantages according to the starting relay of the present invention, the trigger mechanism according to the present invention and the method tool according to the present invention: the abrasion in contact region reduces. For trigger mechanism, (this starting relay comprises magnetic core and comprises the contact device of switch axle for the starting relay that is particularly useful for starting oil engine starting engine used, wherein, switch axle is at one end bearing in magnetic core movingly) in, it is arranged to, it is configured with motion stop portion at contact device and/or magnetic core place, with at least one other parts of the rotation and/or contact device of avoiding magnetic core at least in part relative to the axial motion of switch axle, thus realize the contact that improves for a long time. In one embodiment, except switch axle, contact device also comprises the contact bridge shape contact pin tight in advance by make spring. Motion stop portion according to the present invention comprises and rotates stop portion, to avoid contact device relative to the parts rotation relative to each other of the rotation of magnetic core and/or contact device. In one embodiment, motion stop portion comprises axial retention region, to avoid the parts axial motion relative to each other at least in part contacting stop portion.

By the rotation stop portion that is configured in magnetic core and/or contact device place, the rotation stop portion that namely not constructed by wall at lid place or housing place, thus in other words avoid contact device or its parts, the especially contact pin of contact bridge shape relative to the rotation of contact. Thus, reduce the rotation due to contact device, more properly say the abrasion that the rotation of contact bridge shape contact pin at contact place causes and thus reduce the contact between Gai Hegai wall. Preferably, core configurations one-tenth is fixed relative to lid position. In order to set up contact, contact device is relative to magnetic core motion between magnetic core and lid, and wherein, contact device can be bearing in magnetic core with axial motion. In a kind of design, rotate stop portion and it is integrated in contact device and/or in magnetic core, and the parts not needed to add. In addition, simplified the assembling of starting relay at contact device place by rotation stop cage structure. Thus, starting relay structure very little, can simply assemble and by contact region reduce abrasion improve work-ing life.

In a kind of design, motion stop portion comprises at least one and rotates stop portion, this rotation stop portion comprise at least two rotate asymmetric, especially at least two actings in conjunction, complementary, rotationally symmetrical cross section. Matched by the corresponding cross section in the support region in switch axle magnetic core, avoid the rotation between switch axle and magnetic core. By movable contact bridge shape contact pin (it is positioned on switch axle in the way of tight in advance by make spring) relative to switch axle to rotate relevant lock and stop, achieve a kind of bayonet socket for contact bridge shape contact pin is fixed on switch axle place to connect, thus make simply to be assembled into possibility. By this way, it is achieved motion stop portion in the axial direction. By corresponding latch piece, such as at the groove at the side place in the face of contact, prevent from further rotating. Alternatively or additionally, other stop part is not only set in one embodiment in the axial direction but also diametrically. The form fit that these stop parts are such as configured to switch axle connects profile, and switch is coupling in the hole being incorporated into contact bridge shape contact pin afterwards. In order to the stop of axis, stopping element, such as stopper ring can be set in addition.

By the measure hereinafter mentioned, it is achieved that at favourable improvement scheme and the improving countermeasure of foregoing device.

A kind of favourable design specifies, motion stop portion comprises and rotates stop portion, this rotation stop portion comprise at least two rotate asymmetric, especially at least two actings in conjunction, cross section complementary, non-rotating symmetry. By this way, it is achieved that rotate stop portion at magnetic core and/or contact device place, more properly say simple at switch axle place and joint space-efficient is integrated. The cross section of all non-rotating symmetries, especially except circle or annular cross section except all cross sections, namely, preferably have corner angle, the cross section of especially trilateral, tetragon, rectangle, Polygons, but also have oval and/or avette cross section to be all possible embodiment.

A kind of favourable design specifies, it is to construct be constructed in the rotation stop portion at magnetic core place to have rotate asymmetric cross section for holding and the guidance cavity of guide switch axle. Preferably, this guidance cavity is configured to hole, is advantageously configured to the hole of central authorities, such as, is through hole. In one embodiment, rotating asymmetric cross section and be constructed to have the Embedded Division rotating asymmetric interior cross section, it is inserted in hole. Achieve the rotation stop portion that structure is very little by this way, it is possible to existing have the magnetic core of rotationally symmetrical interior cross section installs additional this rotation stop portion. So, Embedded Division works as adapter and is fixed on magnetic core place by corresponding web member.

In addition, a kind of embodiment regulation, the rotation stop portion being configured in contact device place is constructed to having of switch axle and rotates asymmetric cross section, especially has the first area rotating asymmetric cross section rotating asymmetric cross section complementation with guidance cavity, and it is bearing in guidance cavity at least in part. Such as, rotate asymmetric cross section integrally, that is integratedly, or independent ground, such as it is configured in switch axle place by the set piece put. Therefore, two of magnetic core and switch axle rotate asymmetric cross section economical space saving and acting in conjunction in the way of form fit connection.

Specifying in a kind of favourable design, switch axle at least has the cross section being applicable to rotatably accommodation contact bridge shape contact pin, especially rotationally symmetrical cross section in the 2nd region (accommodation section of the contact bridge shape contact pin of contact device is arranged on the 2nd zone).

In addition, specify in another preferred form of implementation, motion stop portion comprise with the 2nd area adjacency or axial retention region in the second area, with the rotation release according to contact bridge shape contact pin or lock only contact bridge shape contact pin cross the axial motion in this region. By this way, simple assembling is realized by the connection of contact bridge shape contact pin and the bayonet socket joint type of switch axle.

Specifying in the design that another is favourable, axial retention region is constructed to region that is that have non-rotating symmetry or that rotate asymmetric cross section. At this, the outline (observing at least diametrically) in axial retention region is greater than the outline of the cross section in the 2nd region diametrically, thus the 2nd region is stretched out in axial retention region at least in part.

A design again specifies, in order to hold with axial retention on switch axle, contact bridge shape contact pin has a through hole, and this through hole has axially asymmetric cross section, especially has the cross section rotating asymmetric cross section complementation being configured to axial retention region. The cross section of through hole is at least less times greater than the cross section in the 2nd region so that contact bridge shape contact pin rotation in the second area is possible.

Preferably, lock stop member is set in one embodiment, to limit the rotation of contact bridge shape contact pin at least in part. Such as, this lock stop member is included in the groove on the side of contact of contact bridge shape contact pin. Alternatively or additionally, such as, at the 2nd zone, latch elements is set, itself and contact bridge shape contact pin acting in conjunction. Preferably, groove is provided with recess, and it is complementary that this recess is configured to cross section with axial retention portion, but can reverse, and that is through hole with contact bridge shape contact pin does not overlap. So, when rotating accordingly, realize contact bridge shape tab engagement when the axial motion such as caused by make spring tight in advance and enter in recess.

Another favourable design of the present invention specifies, by non magnetic and/or can not magnetized material, be preferably made of plastics switch axle. By this way, switch axle can be manufactured very light.

Compared with prior art, trigger mechanism, in particular for start oil engine starting engine (it comprises the starting relay for connecting engagement process, wherein, starting relay is constructed to the starting relay according to the present invention) advantage that has is, avoid fret wear at lid (contact configuration is at this lid) place being mostly made up of softer material, and thus can realize the contact of high-quality. Thus reduce the number of faults caused due to the abrasion material between contact bridge shape contact pin and contact. The starting relay of trigger mechanism comprises magnetic core, the contact device being movably bearing in magnetic core at least in part and the contact fixing relative to contact device and/or magnetic core position, wherein, in order to set up contact, contact device motion is made to come to contact place, and wherein, stop portion is rotated, to avoid contact device relative to the rotation of contact in magnetic core side at contact device and/or magnetic core place structure.

A kind of method for the manufacture of starting relay according to the present invention, this starting relay is with magnetic core and the contact device comprising switch axle, wherein, switch axle is at one end movably bearing in magnetic core, the method comprises the following steps: rotating contact bridge shape contact pin, until can axially guide the asymmetric through hole of rotation to cross rotating asymmetric cross section and discharging axial motion of axial retention region; Axially moving contact bridge shape contact pin, makes it to cross axial retention region, moves on switch axle; And rotating contact bridge shape contact pin so that cross the axial motion that axial retention region returns and only locked. Compared with prior art, the advantage that the method has is, obviously can manufacture starting relay by this way more simply. Carry out crossing the axial motion in axial retention region contraryly with the spring power of make spring. Contact bridge shape contact pin is fixed on switch axle place by the form according to bayonet socket joint. Simply by switch axle moving contact spring. There is no the assembling of high cost.

A kind of embodiment regulation, independently, that is the joint of bayonet socket formula also can be configured in control axle or switch axle and magnetic core place when not rotating stop portion. In this case, control axle or the first area (switch axle utilizes this first area to be bearing in magnetic core) of switch axle and the corresponding region of magnetic core, that is guidance cavity and there is rotationally symmetrical cross section, especially complementary rotationally symmetrical cross section respectively. The remaining region of switch axle and contact bridge shape contact pin remains unchanged. Such as surrounded by wall the region of contact is arranged in lid and rotate stop portion.

Accompanying drawing explanation

Shown in the drawings and explain embodiments of the invention in the following description in detail. Wherein:

Fig. 1 shows with the trigger mechanism connecting rly. with transverse sectional view,

Fig. 2 shows the part with the contact device rotating stop portion with stereographic map,

Fig. 3 shows the enforcement mode of the part cutting according to Fig. 2 with another stereographic map,

Fig. 4 shows the enforcement mode of the part cutting according to Fig. 2 with the stereographic map according to Fig. 2,

Fig. 5 shows with the switch axle rotating stop portion with stereographic map,

Fig. 6-17 shows the step for the manufacture of starting relay with multiple stereographic map, and

Figure 18 shows a part for magnetic core with vertical view.

Embodiment

Fig. 1 shows the trigger mechanism 10 of the oil engine with starting relay 13 (also referred to as connecting rly.) with transverse sectional view. Such trigger mechanism 10 is mainly used in motor vehicle, and is called as starting engine, especially release formula spiral wheel trigger (Schub-Schraubtrieb-Starter). Motor 11 (especially starting engine), transmission rig 12 (especially sun and planet gear mechanism) and starting relay 13 (especially magnetic switch) belong to main assembly. Motor 11 is in the effective of machinery by means of armature shaft 14 and transmission rig 12 and is connected. Transmission rig 12 is by means of the separative element 15 adjacent with armature shaft 14, and especially covering plate or covering dish, be separated with motor 11. It is important in this that, armature shaft 14 is provided with sealing element, and sealing element forms the sealing portion of rotatable motion together with separative element 15. Sealing portion is arranged in the region surrounded by mark window 17. Thus, achieve a kind of decoration form by technical scheme here, this decoration form is protected transmission rig 12 not by the infringement of particle or medium penetrant.

In the starting process of oil engine, motor 11 temporarily is connected with oil engine by gear drive by magnetic switch. Due to the typical high rotating speed of electric motor 11 with for the moment of torsion needed for starting process, it is necessary to big transmitting ratio. Desired transmitting ratio is by the pinion(gear) (especially starting pinion(gear)) at trigger place and realizing relative to starting the bigger pinion(gear) of pinion(gear) by corresponding flywheel. Start pinion(gear) can axially infinitely move on armature shaft 14, and engaged with the portion of engagement of flywheel by magnetic switch or electromagnet. Afterwards, connecting motor or electric motor 11 followed by closed contact switch, contact switch is a part for magnetic switch or pushes away the part into magnet more precisely. Starting pinion(gear) and be equipped with freewheel, this freewheel prevents the oil engine started from too high rotating speed drive-motor 11 by the starting pinion(gear) still engaged and thus being damaged or destroying motor 11. Such starting engine generally has the electric motor of series motor or lasting excitation as motor 11.

Motor 11 is made up of immovable parts (stator) and the parts (rotor) that rotatably supported. In this case, it relates to inner rotor type motor, its rotor limits the part of the part of the inside of motor 11 and the outside of its stator restriction motor 11. Rotor has the coil with iron core, and it is also referred to as armature and can be rotated to support in the magnetic field between the pole boots of stator. In motor 11, replace so-called excitation winding by permanent magnet, i.e. permanent magnet. Due to the permanent magnet of advanced person, stator winding can be saved in for the trigger mechanism of motor vehicle. Coil, the especially armature winding of armature is manipulated by reverser. Such as, reverser realizes the connection of housing to armature winding by two fixing carbon brush (it is compressed against on the cylinder jointly rotated with armature). The surface of cylinder is divided into the section of mutually insulated. As general in direct-current machine, the winding quantity that armature has is the half of the section quantity of reverser. At this, each winding is connected with two sections relative to each other in its end. Due to the special requirement to moment of torsion and electric current, the cross section between section and the carbon brush of correspondence is especially wide. When four carbon brush, two windings can be simultaneously effective, and when six carbon brush, three windings can effectively simultaneously.

In the embodiment shown in this, contact switch comprises contact 16, and this contact is configured in case lid place in case side, or in brief, covers 18 places.

Fig. 2 shows a part for contact device 20 with stereographic map, and this contact device comprises the switch axle 21 with the motion stop portion 30 for the starting relay 13 according to Fig. 1. Motion stop portion 30 comprises rotation stop portion 30a and axial retention region 27. According to Fig. 2, except switch axle 21, contact device 20 comprises contact bridge shape contact pin 22 and make spring 23, and this make spring is axially pre-tight on switch axle 21 by contact bridge shape contact pin 22. Contact device 20 has and rotates stop portion 30a, and in shown diagram, this rotation stop portion 30a is integrally, that is corresponding to contact device 20 integratedly parts, i.e. switch axle 21 be configured in together. Rotation stop portion 30a is included in first in the first area of switch axle 21 and rotates asymmetric cross section 31, and switch axle is bearing in the corresponding guidance cavity 24a of magnetic core 24 (see Figure 16-18) in this region. Forming section 31a that radially stretched out from the cylindrical matrix 21a of switch axle 21 by two, square forms cross section 31, and forming section 31a is arranged on matrix 21a relatively.

Switch axle 21 stretches out from the guidance cavity 24a of magnetic core 24 and/or arranges the accommodation section of contact bridge shape contact pin 22 at the 2nd zone in the second area, in this second area, switch axle 21 has rotationally symmetrical cross section, rotatably holds contact bridge shape contact pin 22 with the cross-section rotationally symmetrical at this. In the 2nd region of switch axle 21, it is being configured between the stopper ring 25 of convex annular shoulder and the contact bridge shape contact pin 22 held to be furnished with the make spring 23 being configured to helical pressure spring. The contact bridge shape contact pin 22 of accommodation is pressed against on the axial retention region 27 being configured to stop plate 27a by it. 3rd region or axial retention region 27 are with for cross section that is that have non-rotating symmetry with holding the 2nd rotationally symmetrical area adjacency of contact bridge shape contact pin 22 or that rotate asymmetric rectangular in form. This cross-section corresponding is in the cross section of the through hole 22a of contact bridge shape contact pin 22, and this cross-sectional configuration becomes complementary with through hole 22a, is that is configured to rectangle equally. As long as through hole 22a and stop plate 27a is correspondingly directed at, contact bridge shape contact pin 22 just can axially move across stop plate 27a by this through hole 22a. If through hole 22a correspondingly rotates about 90 �� relative to stop plate 27a, as, shown in Fig. 2 to 4, make spring 23 makes the contact bridge shape contact pin 22 of accommodation abut against on stop plate 27a, thus contact bridge shape contact pin 22 is compressed against on stop plate 27a. Contact bridge shape contact pin 22 has the part 22b of the annular being positioned at central authorities, diametrically extends radially a contact element 22c from this part 22b respectively, and contact bridge shape contact pin 22 utilizes contact element 22c to contact corresponding contact 16. At this, two contact element 22c are preferably of similar shape, and are arranged to tilt relative to the part 22b of the annular being positioned at central authorities a little.

Fig. 3 and 4 shows the enforcement mode of the part cutting of the contact device 20 according to Fig. 2 with different stereographic maps. At this it can be seen that in shown enforcement mode, the part 22b and contact element 22c of the annular being positioned at central authorities of contact bridge shape contact pin 22 is configured to the flat board of the axial forming section of not band respectively. If contact bridge shape contact pin 22 should be got rid of to be continued to rotate undesirably, forming section and/or recessed portion can also be set except through hole 22a, such as, with the form of groove.

Fig. 5 shows the switch axle 21 in the motion stop portion 30 with integrated and integrated axial retention region 27 with stereographic map. Obviously it can be seen that the different zones of switch axle 21 has different cross sections. As clear and definite from following description, at this, non-rotating symmetry or rotate asymmetric cross section and achieve motion stop portion 30.

Fig. 5 to 17 shows the different steps for the manufacture of starting relay 13 with multiple stereographic map. At this, first guiding make spring 23 is crossed stop plate 27a and is arranged between stopper ring 25 and stop plate 27a for (Fig. 6 and 7) in the 2nd region holding contact bridge shape contact pin 22. Afterwards, rotating contact bridge shape contact pin 22 so that the cross section of its through hole 22a or through hole 22a is directed at matchingly or complementally with the cross section of stop plate 27a. And then, make contact bridge shape contact pin 22 axially move across stop plate 27a, wherein, make spring 23 by the axial motion of contact bridge shape contact pin 22 by compression and be thus tightly resisted against on stopper ring 25 in advance. Once contact bridge shape contact pin 22 axially moves across stop plate 27a, with regard to rotating contact bridge shape contact pin 22 so that stop plate 27a can not be crossed again and axially move. At this, it is preferable that make contact bridge shape contact pin 22 rotate 90 ��. In order to simplify correct rotation, such as, supplementary card lock section or groove are set. In the position rotated, contact bridge shape contact pin 22 is pressed against on stop plate 27a by make spring 23. Fig. 8-11 and 12-15 show step described above from different views. When so assembling is good, switch axle 21 is inserted in magnetic core 24, more properly say in insertion its guidance cavity 24a. Guidance cavity 24a is configured to pass through the center through hole of magnetic core 24. At this, this through hole is in supporting or has equally in holding the region rotating asymmetric cross section of switch axle 21 and rotates asymmetric cross section. These cross-sectional configuration become correspondingly complementary so that the rotation stop portion 30a of switch axle 21 is configured in magnetic core 24. Therefore, in such as axial motion shown in Figure 16 and 17, in the way of rotating stop, guide switch axle 21 is through magnetic core 24.

Figure 18 shows a part for magnetic core 24 with vertical view. Magnetic core 24 has the guidance cavity 24a being configured to through hole in central authorities. The cross section that the cross section that guidance cavity 24a has is configured to the first area corresponding to switch axle 21 is complementary. For this reason, this cross section has circular middle portion, and the forming part of two rectangles diametrically is arranged in this middle part. By the cross section that this rotation is asymmetric, under the acting in conjunction of the cross section asymmetric with the rotation of the switch axle 21 of corresponding and complementation, realize the rotation stop portion 30 integrally constructed. By two forming parts or forming section, only make the axial motion of switch axle 21 become possibility, and rotary motion can not be produced.

Claims

1. the starting relay for trigger mechanism (10) (13), described starting relay comprises

Magnetic core (24) and

Comprise the contact device (20) of switch axle (21), wherein, described switch axle (21) at one end can be bearing in the way of moving in described magnetic core (24),

It is characterized in that,

Described switch axle (21) has motion stop portion (30), this motion stop portion comprises rotation stop portion (30a) and region, axial retention portion (27), with at least one other parts of the rotation and described contact device (20) of avoiding described magnetic core (24) at least in part relative to the axial motion of described switch axle (21)

What described rotation stop portion (30a) was described switch axle (21) has the first area rotating asymmetric cross section, this first area be bearing at least in part described magnetic core (24) for hold and guide switch axle (21) guidance cavity (24a) in, and

Described switch axle (21) at least have in the 2nd region of the accommodation section of contact bridge shape contact pin (22) that described contact device (20) is set can so that the cross section of described contact bridge shape contact pin (22) can be held in the way of rotating, and

Described axial retention region (27) and described 2nd area adjacency or in described 2nd region, with the rotation release according to described contact bridge shape contact pin (22) or lock only described contact bridge shape contact pin (22) cross the axial motion in described region.

2. according to starting relay according to claim 1 (13), it is characterized in that, described guidance cavity (24a) has the asymmetric cross section of rotation, and the cross section that the rotation rotating asymmetric cross section and described guidance cavity (24a) of described first area is asymmetric is complementary.

3. according to aforementioned starting relay according to claim 1 (13), it is characterised in that, it is possible to it is rotationally symmetrical so that the cross section of described contact bridge shape contact pin (22) can be held in the way of rotating.

4. according to starting relay according to claim 1 (13), it is characterised in that, described axial retention region (27) rotates the region of asymmetric cross section for having.

5. according to starting relay according to claim 4 (13), it is characterized in that, in order to hold with axial retention on described switch axle (21), described contact bridge shape contact pin (22) has through hole (22a), and this through hole has the asymmetric cross section of rotation.

6. according to starting relay according to claim 5 (13), it is characterized in that, the through hole (22a) of described contact bridge shape contact pin (22) has the cross section rotating asymmetric cross section complementation with described axial retention region (27).

7. according to starting relay according to claim 1 (13), it is characterised in that, it is provided with lock stop member, to limit the rotation of described contact bridge shape contact pin (22) in described 2nd region at least in part.

8. according to starting relay according to claim 1 (13), it is characterised in that, described switch axle (21) is by non magnetic and/or can not make by magnetized material.

9. according to starting relay according to claim 1 (13), it is characterised in that, described trigger mechanism (10) starts oil engine starting engine used.

10. a trigger mechanism (10), it comprises the connection rly. for connecting engagement process, it is characterised in that, described connection rly. is according to the starting relay (13) according to any one of aforementioned claim 1 to 9.

11. according to trigger mechanism according to claim 10 (10), it is characterised in that, described trigger mechanism (10) is the starting engine for starting oil engine.

12. 1 kinds of methods for the manufacture of starting relay (13), described starting relay has magnetic core (24) and comprises the contact device (20) of switch axle (21), wherein, described switch axle (21) is at one end can be bearing in the way of moving in described magnetic core (24), described switch axle (21) has motion stop portion (30), this motion stop portion comprises rotation stop portion (30a) and region, axial retention portion (27), with at least one other parts of the rotation and described contact device (20) of avoiding described magnetic core (24) at least in part relative to the axial motion of described switch axle (21),

Described axial retention region (27) and described 2nd area adjacency or in described 2nd region, the axial motion that described contact bridge shape contact pin (22) crosses described region is stopped with the rotation release according to described contact bridge shape contact pin (22) or lock

Described method comprises the following steps:

Rotating contact bridge shape contact pin (22), until can axially guide the asymmetric through hole (22a) of rotation to cross rotating asymmetric cross section and discharging axial motion of axial retention region (27);

Axially move described contact bridge shape contact pin (22), make this contact bridge shape contact pin cross described axial retention region (27), move on described switch axle (21);

Rotate described contact bridge shape contact pin (22) so that cross the axial motion that described axial retention region (27) returns and only locked; And

In the way of rotating stop, guide switch axle (21) is through magnetic core (24).