CN103426684B - Electromagnetic switch, manufacturing method of electromagnetic switch and vehicle starter - Google Patents
Electromagnetic switch, manufacturing method of electromagnetic switch and vehicle starter Download PDFInfo
- Publication number
- CN103426684B CN103426684B CN201210158379.XA CN201210158379A CN103426684B CN 103426684 B CN103426684 B CN 103426684B CN 201210158379 A CN201210158379 A CN 201210158379A CN 103426684 B CN103426684 B CN 103426684B
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- Prior art keywords
- push rod
- electromagnetic switch
- moving core
- iron core
- vehicle starter
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- 239000007858 starting material Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000000034 method Methods 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 7
- 238000002788 crimping Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 description 24
- 238000007906 compression Methods 0.000 description 24
- 238000010586 diagram Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000008520 organization Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/041—Details concerning assembly of relays
- H01H50/045—Details particular to contactors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
- H01H51/065—Relays having a pair of normally open contacts rigidly fixed to a magnetic core movable along the axis of a solenoid, e.g. relays for starting automobiles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/006—Assembling or mounting of starting devices
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Push-Button Switches (AREA)
- Manufacture Of Switches (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses a manufacturing method of an electromagnetic switch of a vehicle starter. A single push rod is moved backwards until an initial electric connection state which is set up between two binding posts through a contact bridge on the push rod is detected. The push rod is further moved backwards for a reserved distance, under the condition that the state that a movable iron core is pushed to abut against a fixed iron core is kept, the movable iron core is fixed on the push rod and a splicing window used into which the upper end of a shift fork to can be inserted is machined in the front end of the push rod. The invention further discloses the electromagnetic switch manufactured with the manufacturing method and the vehicle starter comprising the electromagnetic switch. The manufacturing method of the electromagnetic switch, the electromagnetic switch and the vehicle starter can improve the positioning precision of a drive gear.
Description
Technical field
The present invention relates to a kind of for the electromagnetic switch in vehicle starter, the manufacture method of this electromagnetic switch and bag
Vehicle starter containing this electromagnetic switch.
Background technology
The starter of motor vehicles is generally made up of dc motor, drive mechanism and controlling organization etc..Start vehicle
Electromotor when, motor produces turning moment, and this turning moment passes through the driving gear of drive mechanism, and to be delivered to electromotor winged
Gear ring on wheel, to drive the bent axle of electromotor to rotate.
Controlling organization is used for controlling the break-make of starter circuit, and controls engaging and disengagement of driving gear and gear ring.
At present, widely used starter controlling organization is electromagnetic switch.Fig. 1 shows a kind of structure of existing starter relay
Schematic diagram.This electromagnetic switch mainly includes：It is fixedly mounted on the fixed iron core 4 in housing 2 and solenoid 6；By being fixed on shell
Two binding posts 10 that cap 8 on body 2 carries；The moving core 16 being axially movable inside solenoid 6；It is fixed on work
Push rod 12 and 18 on dynamic unshakable in one's determination 16, equipped with contact bridge 14, push rod 18 front end is provided with and is engaged with shift fork 9 for wherein push rod 12 rear end
Engagement windows.
After vehicle ignition switch is connected, solenoid 6 produces electromagnetic force in moving core 16, so that active iron
The heart 16 is mobile rearwardly towards fixed iron core 4, so that contact bridge 14 is driven by push rod 12 and touches two binding posts 10 with by two
Person's electrical connection, thereby turns on the main circuit of motor and drive motor rotates.Touch two binding posts 10 in contact bridge 14
And after setting up electrical connection between two binding posts 10, moving core 16 continues to move a bit of reservation towards fixed iron core 4
Stroke, until stoped by fixed iron core 4.During this period, the front end of push rod 18 pulls drive mechanism by shift fork 9, thus its drive
Moving gear is moved forward and is engaged with the gear ring on engine flywheel, thus starts electromotor.Described reservation stroke can be true
After protecting the contact site generation ablation between contact bridge 14 and two binding posts 10, electromagnetic switch remains to maintain above-mentioned functions.
During the assembling of the electromagnetic switch shown in Fig. 1, push rod 18 front end is pre-formed engagement windows, and push rod 12,18
It is previously assembled on moving core 16, solenoid 6 and fixed iron core 4 are installed in housing 2, then will be with push rod 12,18
Moving core 16 be arranged on inside solenoid 6, then again to push rod 12 over-assemble contact bridge 14, finally that cap 8 is fixing
On housing 2.In this electromagnetic switch, after finishing assembly, the position relationship between each part is just determined and cannot adjust
Section.Due to exist from moving core 16, solenoid 6, housing 2 to cap 8 Complex Dimensional Chain Analyses, therefore described retain stroke
The margin of tolerance is larger.On the other hand, for the positioning precision of engagement windows, there is also can not after electromagnetic switch is completed
There are Complex Dimensional Chain Analyses, therefore engagement windows size and position between the problem adjusting and engagement windows and binding post 10
The margin of tolerance put is also larger.
The above-mentioned both sides margin of tolerance brings various problems compared with conference, and the positioning precision of such as driving gear is low.
Content of the invention
Present invention seek to address that the reservation stroke of electromagnetic switch in the vehicle starter of prior art and engagement windows chi
The low problem of the positioning precision of the larger driving gear leading to of very little and position the margin of tolerance.
For this reason, according to an aspect of the invention, it is provided a kind of vehicle starter electromagnetic switch manufacture method, including under
State step：
(1) fixed iron core is fixedly mounted in the housing；
(2) moving core with single-piece push rod is installed in the housing, wherein moving core can move forward and backward status
In housing, push rod can slidingly back and forth be located at moving core in, and push rod pass through fixed iron core so that the rear end of push rod from
The rear portion of fixed iron core is exposed；
(3) elastic elements on push rod, and on the rear end of push rod, contact bridge is installed, so that push rod can against
The active force of described flexible member is moved rearwards by with respect to contact bridge；
(4) so that push rod is moved rearwards by, pass through described connecing between two binding posts after contact bridge until detecting
Tactile bridge and establish initial status of electrically connecting；
(5) push rod is made to move further back one section of reservation stroke；
(6) push against in holding moving core and in the state of fixed iron core, moving core is fixed on push rod.
In above-mentioned manufacture method, described reservation stroke can be 0.5 to 1.5mm, preferably approximately 1mm.
It is preferable that to detect initial status of electrically connecting using current sensor in above-mentioned manufacture method, described electric current passes
Sensor determines when electric current flows through between two binding posts and establishes initial electrical connection between two binding posts detecting to begin with
State.
In above-mentioned manufacture method it is preferable that in step (6), moving core is fixed on push rod is by by activity
A part of material unshakable in one's determination crimps, rivets or is welded on realization on push rod.
It is preferable that the described a part of material being crimped, rivet or welding of described moving core in above-mentioned manufacture method
Material is formed at moving core front end in advance in the form of cylinder.
In above-mentioned manufacture method it is preferable that push rod will be crimped or be riveted on described a part of material of moving core
Position in material is pre-formed roughened surface, depressions or protrusions.
Preferably, above-mentioned manufacture method is additionally included in the following step of execution after step (6)：(7) keeping active iron
The heart pushes against and processes the engagement windows for being inserted the upper end of shift fork in push rod front end in the state of fixed iron core.
Preferably, described engagement windows be punched by machinery or cut and make.
The present invention its on the other hand provide a kind of for the electromagnetic switch in vehicle starter, it can utilize aforementioned
Manufacture method is made, and includes：Fixed iron core；The moving core that can move forward and backward with respect to fixed iron core；Located at fixing ferrum
A pairs of posts at heart back location；The single-piece push rod being carried by moving core, described push rod passes through fixed iron core, so that
The rear end obtaining push rod is exposed from the rear portion of fixed iron core；It is arranged on the flexible member on push rod；And it is arranged on putting back-end simultaneously
And the contact bridge facing to the pair of binding post, described push rod can against the active force of described flexible member with respect to contact
Bridge is moved rearwards by；Wherein, contact with two binding posts in described contact bridge and set up initial electrical connection between two binding posts
Make push rod be moved rearwards by one section after state retain stroke, keep moving core to push against in the state of fixed iron core simultaneously,
Described moving core is fixed on push rod.
It is preferable that described reservation stroke is 0.5 to 1.5mm, preferably approximately 1mm in above-mentioned electromagnetic switch.
It is preferable that a part of material of moving core is crimped, rivets or be welded on push rod in above-mentioned electromagnetic switch
On.
It is preferable that the described a part of material being crimped, rivet or welding of described moving core in above-mentioned electromagnetic switch
The form of material is to be previously formed in the cylindrical portion of moving core front end.
It is preferable that the described a part of material being crimped or being riveted on moving core of push rod in above-mentioned electromagnetic switch
In position be provided with roughened surface, depressions or protrusions.
It is preferable that the front end of push rod is provided with the joint for being inserted the upper end of shift fork in above-mentioned electromagnetic switch
Window.
The present invention provides a kind of vehicle starter at its another aspect, including：Motor；Output shaft phase with motor
Drive mechanism even；And foregoing electromagnetic switch, it controls the operation of described motor and drive mechanism.
According to the present invention, single push rod is used, and to retain stroke be between contact bridge and two binding posts
Initial status of electrically connecting is moved further back by push rod after being detected and establishes, and therefore retains stroke and is not subject to complicated chi
The impact of very little chain, thus the tolerance retaining stroke can reduce.
Additionally, having moved further back one section and retained stroke simultaneously in contact bridge and two binding post initial contact rear push-rods
And keep moving core in the state of being pushed against fixed iron core to be fixed together and form joint push rod and moving core
Window.Therefore, the margin of tolerance of the size of engagement windows and positioning can also reduce, and the positioning precision of driving gear can carry
High.
Brief description
Fig. 1 is a kind of structural representation according to the electromagnetic switch in the vehicle starter of prior art.
Fig. 2 is the structure and assembling according to the electromagnetic switch in the vehicle starter of a preferred embodiment of the present invention
The schematic diagram of the starting stage of process.
Fig. 3 is the schematic diagram in the interstage of the assembling process of the electromagnetic switch in Fig. 2.
Fig. 4 is the schematic diagram of the final stage of the assembling process of the electromagnetic switch in Fig. 2.
Fig. 5 is the schematic diagram of the contact bridge and its mounting means that may adopt in electromagnetic switch in Fig. 2.
Fig. 6 is the structural representation according to the electromagnetic switch in the vehicle starter of another preferred embodiment of the present invention
Figure.
Specific embodiment
Some preferred implementations of the present invention are described with reference to the accompanying drawings.
Show in Fig. 2 according to an embodiment of the invention for the electromagnetic switch in vehicle starter.This electricity
Magnetic switch includes housing 2, and it has general cylindrical shape body, and (left end in Fig. 2, towards vehicle motor with being located at body front end
The end of that side) reduced-diameter portion 2a.
In the rear portion of the body of housing 2, fixedly mount fixed iron core 4.This fixed iron core 4 includes being fixed on housing 2
Body in substantially disc large diameter portion, the substantial cylindrical path part projecting forward from large diameter portion, from minor diameter part
Divide the generally frustoconical part projecting forward.Additionally, being formed with the guide through hole of insertion before and after vertically in fixed iron core 4.
Nonmagnetic substance (such as pyrite) bushing 32 of general cylindrical shape is arranged in housing 2, wherein, the front end of bushing 32
It is plugged in the reduced-diameter portion 2a of housing 2, the path that rear end is sleeved on fixed iron core 4 is partly gone up, thus bushing 32 is fixed on
In housing 2.
Solenoid 6 is arranged between bushing 32 and the body of housing 2, and is supported by bushing 32.
In the substantially front portion of bushing 32, arrange moving core 16 in the way of being axially movable.This moving core 16
Generally cylindrical, it is formed with the installation through-hole that diameter increases successively, spring retention groove, truncated cone shape tank in it from front to back.
The generally frustoconical part of fixed iron core 4 is adapted for insertion in the truncated cone shape tank of moving core 16.
Single push rod 30 is regularly carried by moving core 16, thus can move axially with moving core 16.Push away
Bar 30 has the big footpath leading portion 30a of the substantial cylindrical and path back segment 30b of substantial cylindrical, and the two is coaxially disposed and holds in the mouth in front and back
Connect.The front part of big footpath leading portion 30a is fixed in the installation through-hole of moving core 16, and rear section is in the bullet of moving core 16
Extend in spring storage tank.Big transition shoulder between footpath leading portion 30a and path back segment 30b is located at described spring retention groove or truncated cone
Describe in groove.
The path back segment 30b of push rod 30 is axially rearwardly extending from big footpath leading portion 30a, the guiding through in fixed iron core 4
Through hole, the rear end of path back segment 30b is exposed from the rear end face of fixed iron core 4.
The front end of big footpath leading portion 30a forward extends out from the front end face of moving core 16, and the front end tool of big footpath leading portion 30a
There is (being for example formed with) homalocephalus portion 40, in this homalocephalus portion, engagement windows will be processed, for by shift fork (not shown)
End is inserted, and the approximate mid-section of this shift fork is pivotably supported, and the lower end of this shift fork is connected with drive mechanism.So, push away
When bar 30 moves axially rearward (in Fig. 2 to the right), drive mechanism can be driven axially to move forward by shift fork, so that driver
The driving gear of structure moves towards the gear ring on engine flywheel and engages.Conversely, push rod 30 is axially forward (in Fig. 2
When moving to the left), drive mechanism can be driven axially to be moved rearwards by by shift fork, so that the driving gear of drive mechanism departs from starting
Gear ring on machine flywheel.
Near the rear end of push rod 30 equipped with contact bridge 14 on the path back segment 30b of push rod 30.Specifically, with reference to Fig. 2
And combine Fig. 5, in an axially sliding manner equipped with mounting seat 28 on path back segment 30b, it can be made up of ambroin.
Mounting seat 28 is in substantially discoid, and inner circumferential surface slidably engages on path back segment 30b.Mounting seat 28 includes anterior lip
28a and rear portion cylindrical section 28b.The external diameter of anterior lip 28a is more than the external diameter of rear portion cylindrical section 28b, and is more than fixed iron core 4
Guide through hole internal diameter.Rear portion cylindrical section 28b carries contact bridge 14, the front side of this contact bridge 14 pushes against in anterior convex
Edge 28a, rear side is blocked by clamp device 42.
Additionally, sleeve 20 and compression spring 22 are set with push rod 30.Before sleeve 20 is located at path back segment 30b
Portion, compression spring 22 is sandwiched between the rear end of sleeve 20 and anterior lip 28a of mounting seat 28.The external diameter of sleeve 20 is suitable to can
It is fitted slidably within the guide through hole of fixed iron core 4.
In the state of contact bridge 14 is held on push rod 30 rear end by mode as above, contact bridge 14 can against
The thrust of compression spring 22 and moved axially forward to (slip) on the path back segment 30b of push rod 30, but its backward mobile will
Stopped by clamp device 42.
It is appreciated that clamp device 42 can have any suitable structure, such as shown in Fig. 5, wherein fastening dress
Put 42 include pushing against the packing ring 44 in contact bridge 14 rear side, the steel ring 46 positioned at packing ring 44 rear side, be fixed on below in steel ring 46
The clamp 48 of push rod 30 rear end.It is appreciated that any permission contact bridge 14 moves forward with respect to push rod 30 but stops it from pushing away
The structure that the rear end of bar 30 is moved rearwards by with respect to push rod 30 and element can adopt.
Sleeve 20 can be made up of ambroin, in substantially cylindric, the front end of sleeve 20 be resisted against big footpath leading portion 30a with
Transition shoulder between path back segment 30b, rear end is pushed against by the front end of compression spring 22.
Cap 8 is fixed on the rear portion of housing 2, and two binding post 10 break-through caps 8 being fixed on wherein.Each wiring
The anterior enlarged portion of post 10 constitutes contact jaw 10a, and the front end face of two contact jaw 10a is facing to the rear surface of contact bridge 14.
Cap 8 can be made of plastics.The front portion of each binding post 10 is fixed in cap 8, and rear portion is from the rear table of cap 8
Show out.
Two binding posts 10 can be fixed on by produced by insert molding in the material of cap 8.Or, two binding posts 10 can
To be fixed on cap 8 using securing member.For example, the rear portion of each binding post 10 could be formed with screw thread, to utilize and institute
Binding post 10 lock onto on cap 8 the nut (not shown) stating screw thread engagement.
Additionally, equipped with compression spring 24 between moving core 16 and fixed iron core 4.The front end of this compression spring 24 is located at
In the spring retention groove of moving core 16 and push against in the bottom of spring retention groove.The rear sleeve of this compression spring 24 is located at sleeve
On 20.The rear end of this compression spring 24 pushes against in the front end face of fixed iron core 4 (its generally frustoconical part).
Compression spring 24 is used as the back-moving spring of push rod 30.Compression spring 22 is used as the back-moving spring of contact bridge 14, also simultaneous
Back-moving spring as push rod 30.It is contemplated that it is also possible to being the reseting elastic element that push rod and contact bridge are equipped with other forms.
In the front end of moving core 16, it is formed with flange 16a round push rod 30, it is before the body of moving core 16
End face projection forward.The external diameter of this flange 16a is much smaller than the radial dimension of the body of moving core 16.
In the front end of flange 16a, round push rod 30 be formed with columnar be fixedly connected portion 16b, it is from flange 16a's
Front end faces forward projection, and its radial thickness is arranged to pass through crimping, riveting, weldering by instruments such as crimping, riveting, welding
The periphery of the fixing push rod 30 (big footpath leading portion 30a) of the mode such as connect.
According to the present invention, when manufacturing the electromagnetic switch shown in Fig. 2, each element described above is produced first
Come, but in homalocephalus portion 40, not yet process engagement windows.
Then, assemble each element.First, fixed iron core 4 is arranged in housing 2 with bushing 32 and solenoid 6.
Next, the rear end of push rod 30 is inserted the installation through-hole of moving core 16 from the front side of moving core 16, with
The big footpath leading portion 30a making push rod 30 is slidably located in the installation through-hole of moving core 16.
Next, sleeved 20 and compression spring 24 are covered on push rod 30.
Next, moving core 16 is loaded housing 2 with push rod 30, sleeve 20, compression spring 24 from front side, wherein
Moving core 16 is slidably inserted in bushing 32；The path back segment 30b of push rod 30 passes through the guide through hole of fixed iron core 4, with
The rear end making push rod 30 is exposed on rear side of fixed iron core 4；Sleeve 20 is inserted in the guide through hole of fixed iron core 4 at least in part
In, and compression spring 24 is compressed between moving core 16 and fixed iron core 4.
Next, from the path back segment 30b that compression spring 22 is sleeved on push rod 30 by rear side, and its major part insertion
In the guide through hole of fixed iron core 4, then mounting seat 28, contact bridge 14 and clamp device are assembled on the rear end of push rod 30 successively
42.Compression spring 22 is pre-compressed between sleeve 20 and mounting seat 28.
Next, cap 8 is installed to housing 2 from rear side with two binding posts 10.
In so pre-assembled electromagnetic switch, push rod 30 can slide in moving core 16.
Next, connect at the rear portion of the exposure of two binding posts 10 to detect on off operating mode between two binding posts 10
Detection means, such as current sensor.
Apply the thrust of () axially backward to push rod 30 in Fig. 2 to the right, so that push rod 30 is moved rearwards by, until contact bridge 14
Touch the contact jaw 10a of two binding posts 10, as shown in Figure 3.In the process, moving core 16 also may be against pressure
The thrust of contracting spring 24 is moved rearwards by (for example being driven) by homalocephalus portion 40.
After contact bridge 14 initial contact to two binding posts 10, contact bridge 14 is prevented from and can not continue to be moved rearwards by,
And push rod 30 then continues to be moved rearwards by.Now, the compression stress in compression spring 22 starts to increase, so that contact bridge 14 and two
Contact pressure between binding post 10 is gradually increased.Continue in the rear push-rod 30 of contact bridge 14 initial contact to two binding posts 10
After being moved rearwards by one section very little of the first distance (such as 0.05 to 0.1mm), between contact bridge 14 and two binding posts 10
Set up initial status of electrically connecting, now the compression stress value added in compression spring 22 (i.e. current compression power deducts pre-compression force) is very
Little.
This initial status of electrically connecting can be detected by detection means, thus detection means obtains initial turn-on letter
Number.For example, begin with electric current and flow through two binding posts 10, obtained the initial current flowing through two binding posts 10 by current sensor
Signal.
After initial turn-on signal is detected, push rod 30 is made to move further back second distance, this second distance is big
In the first distance.For example, second distance is 0.5 to 1.5mm, preferably approximately 1mm.This second distance can be regarded as reservation line
Journey, in order to guarantee still to enable reliably to be electrically connected after the generation ablation of the contact site between contact bridge 14 and two binding posts 10
Connect.
Now, electromagnetic switch is in position shown in Fig. 4, and wherein, clamp device 42 and contact bridge 14 are separated a distance L
(equal to the first distance plus second distance), this distance be contact bridge 14 and two binding post 10 initial contact rear push-rods 30 backward
Displacement.
In this state, moving core 16 is pushed in a rearwardly direction, until it pushes against in fixed iron core 4, thus quilt
Prevention can not move further back.For example, now the rear end face of moving core 16 pushes against in the substantial cylindrical of fixed iron core 4
On the front end face of path part.
It is moved rearwards by distance described in being maintained in push rod 30 and moving core 16 is pushed against on fixed iron core 4
Under state, push rod 30 is fixed in moving core 16.The fixation of the two is by activity by instruments such as crimping, riveting, welding
Unshakable in one's determination 16 be fixedly connected portion 16b by the periphery of the fixing push rod 30 (big footpath leading portion 30a) of the modes such as crimping, riveting, welding
Realize.The instruments such as crimping, riveting, welding that exist for of flange 16a provide larger working place.
In order to improve the bonding strength between push rod 30 and moving core 16, can be crimped in the expection of push rod 30 or rivet
Position on carry out pretreatment, for example formed roughened surface or depression, projection etc..
After push rod 30 and moving core 16 are fixed together, push against in the shape of fixed iron core 4 keeping moving core 16
Under state, in the homalocephalus portion 40 of push rod 30, process engagement windows 40a, in order to be inserted the upper end of shift fork.Engagement windows
40a can be formed by methods such as punching press, Laser Processings.When processing engagement windows 40a, one or more positions on housing 2
(such as surface) can serve as positioning datum.
After processing engagement windows 40a, unclamp moving core 16, so that it is in the thrust of compression spring 22 and 24
Under move forward () with push rod 30 in Fig. 4 to the left.After push rod 30 has been advanced past afore-mentioned distance L, clamp device 42
Touch contact bridge 14 and be pulled away from two binding posts 10.Next, in the presence of compression spring 24, moving core 16 carries
Push rod 30 to continue to move along, until anterior lip 28a of mounting seat 28 pushes against in the rear end of fixed iron core 4, for example, push against
In the rearmost flute of fixed iron core 4.In this state, moving core 16 be prevented from push rod 30 and can not further to
Front movement.
It may be noted that in the manufacture process according to the above-mentioned electromagnetic switch of the present invention, the sequence of each part is not
It is confined to previously described, but can be set according to the concrete structure of these parts.
The structure of the above-mentioned electromagnetic switch according to the present invention and manufacture process, retaining stroke is to connect with two in contact bridge 14
Initial status of electrically connecting between terminal 10 is moved further back by push rod 30 after being detected and establishes, and therefore retains
Stroke is not affected by Complex Dimensional Chain Analyses, thus the tolerance retaining stroke can be with very little.
Additionally, single push rod 30 is used, to replace two push rods of the prior art.In such configuration, connecing
Tactile bridge 14 and two binding post 10 initial contact rear push-rods 30 have moved further back a segment distance and have kept moving core
16 are pushed against being fixed together and forming engagement windows 40a push rod 30 and moving core 16 in the state of fixed iron core 4.
Therefore, there is simple dimension chain (the single push rod of contact bridge 14- 30) between engagement windows 40a and binding post 10, therefore engage
The size of window and the margin of tolerance also very little of positioning.In other words, engagement windows only exist the size of finish formation
And alignment tolerance, and in prior art, the middle build-up tolerance of impact engagement windows size and alignment tolerance scope is avoided by.This
The tolerance of the size of engagement windows of invention and positioning is much smaller than prior art, and the positioning precision of driving gear can greatly carry
High.
Can see, the present invention is improved to the structure of the electromagnetic switch with single-piece push rod and manufacture,
To reduce the tolerance retaining the tolerance of stroke and the size of engagement windows and positioning.The other elements relevant with single-piece push rod
Structure and arrangement, for example, sleeve 20, mounting seat 28, the structure of clamp device 42, arrangement of compression spring 22,24 etc.,
The above-mentioned thought of the present invention is not construed as limiting.
For example, show in Fig. 6 according to the electricity in the vehicle starter of another preferred embodiment of the present invention
Magnetic switch, it essentially consists in, with the difference of electromagnetic switch shown in Fig. 2-4, the diameter that sleeve 20 has increasing.In this feelings
Under condition, the diameter of the guide through hole of fixed iron core 4 correspondingly increases.As a result, the internal perisporium of the guide through hole of fixed iron core 4 with push away
Space between the outer peripheral face of path back segment 30b of bar 30 increases, so that the magnetic gap between fixed iron core 4 and push rod 30 adds
Greatly, thus the impact to the magnetic circuit that solenoid 6 produces for the push rod 30 reduces, this make using low price magnetic material (for example
Ordinary steel) make push rod 30 and be possibly realized.In contrast, the push rod 30 in electromagnetic switch shown in Fig. 2-4 is generally by high price
Nonmagnetic substance (such as copper, copper alloy, rustless steel etc.) make.
The other side of the present invention be related to by above-mentioned manufacture method make have aforementioned structure electromagnetic switch and
Comprise the vehicle starter of this electromagnetic switch.
Although describing the present invention herein with reference to specific embodiment, the scope of the present invention is not limited to shown
Details.In the case of the ultimate principle without departing from the present invention, various modifications can be made for these details.
Claims (22)
1. a kind of vehicle starter electromagnetic switch manufacture method, comprises the steps：
(1) fixed iron core is fixedly mounted in the housing；
(2) moving core with single-piece push rod is installed in the housing, wherein moving core can be located at shell movably forward and backward
In body, push rod can be located in moving core slidingly back and forth, and push rod passes through fixed iron core, so that the rear end of push rod is from fixation
Rear portion unshakable in one's determination is exposed；
(3) elastic elements on push rod, and install contact bridge on the rear end of push rod so that push rod can against described
The active force of flexible member is moved rearwards by with respect to contact bridge；
(4) so that push rod is moved rearwards by, pass through described contact bridge between two binding posts after contact bridge until detecting
And establish initial status of electrically connecting；
(5) push rod is made to move further back one section of reservation stroke；
(6) push against in holding moving core and in the state of fixed iron core, moving core is fixed on push rod.
2. vehicle starter electromagnetic switch manufacture method as claimed in claim 1, wherein, described reservation stroke be 0.5 to
1.5mm.
3. vehicle starter electromagnetic switch manufacture method as claimed in claim 1, wherein, described reservation stroke is of about 1mm.
4. vehicle starter electromagnetic switch manufacture method as claimed any one in claims 1 to 3, wherein, is passed using electric current
Sensor detecting initial status of electrically connecting, described current sensor detect begin with electric current and flow through between two binding posts when
Determine and establish initial status of electrically connecting between two binding posts.
5. vehicle starter electromagnetic switch manufacture method as claimed any one in claims 1 to 3, wherein, in step (6)
It is real on push rod by crimping, riveting or being welded on a part of material of moving core that moving core is fixed on push rod
Existing.
6. vehicle starter electromagnetic switch manufacture method as claimed in claim 5, wherein, being crimped of described moving core,
Described a part of material of riveting or welding is formed at moving core front end in advance in the form of cylinder.
7. vehicle starter electromagnetic switch manufacture method as claimed in claim 5, wherein, being crimped or being riveted on of push rod
Position in described a part of material of moving core is pre-formed roughened surface, depressions or protrusions.
8. vehicle starter electromagnetic switch manufacture method as claimed any one in claims 1 to 3, is additionally included in step (6)
The following step executing afterwards：
(7) push against in holding moving core and process for inserting the upper end of shift fork in push rod front end in the state of fixed iron core
Enter engagement windows therein.
9. vehicle starter electromagnetic switch manufacture method as claimed in claim 8, wherein, described engagement windows are rushed by machinery
Cut out or cut and make.
10. a kind of for the electromagnetic switch in vehicle starter, including：
Fixed iron core；
The moving core that can move forward and backward with respect to fixed iron core；
A pairs of posts at fixed iron core back location；
The single-piece push rod being carried by moving core, described push rod passes through fixed iron core, so that the rear end of push rod is from fixing ferrum
The rear portion of the heart is exposed；
It is arranged on the flexible member on push rod；And
It is arranged on putting back-end and the contact bridge facing to the pair of binding post, described push rod can against described elasticity unit
The active force of part is moved rearwards by with respect to contact bridge；
Wherein, after described contact bridge is contacted with two binding posts and sets up initial status of electrically connecting between two binding posts
Make push rod be moved rearwards by one section retain stroke, keep moving core to push against in the state of fixed iron core simultaneously, described activity
Iron core is fixed on push rod.
11. electromagnetic switch as claimed in claim 10, wherein, described reservation stroke is 0.5 to 1.5mm.
12. electromagnetic switch as claimed in claim 10, wherein, described reservation stroke is of about 1mm.
13. electromagnetic switch as any one of claim 10 to 12, wherein, a part of material of moving core is pressed
Connect, rivet or be welded on push rod.
14. electromagnetic switch as claimed in claim 13, wherein, described moving core be crimped, rivet or weld described
The form of a part of material is to be previously formed in the cylindrical portion of moving core front end.
15. electromagnetic switch as claimed in claim 13, wherein, being crimped or be riveted on described of moving core of push rod
The position in material is divided to be provided with roughened surface, depressions or protrusions.
16. electromagnetic switch as claimed in claim 14, wherein, being crimped or be riveted on described of moving core of push rod
The position in material is divided to be provided with roughened surface, depressions or protrusions.
17. electromagnetic switch as any one of claim 10 to 12, wherein, the front end of push rod is provided with for by shift fork
The engagement windows that upper end is inserted.
18. electromagnetic switch as claimed in claim 13, wherein, the front end of push rod is provided with for being inserted the upper end of shift fork
Engagement windows.
19. electromagnetic switch as claimed in claim 14, wherein, the front end of push rod is provided with for being inserted the upper end of shift fork
Engagement windows.
20. electromagnetic switch as claimed in claim 15, wherein, the front end of push rod is provided with for being inserted the upper end of shift fork
Engagement windows.
21. electromagnetic switch as claimed in claim 16, wherein, the front end of push rod is provided with for being inserted the upper end of shift fork
Engagement windows.
A kind of 22. vehicle starter, including：
Motor；
The drive mechanism being connected with the output shaft of motor；And
Electromagnetic switch as any one of claim 10 to 21, it controls the operation of described motor and drive mechanism.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210158379.XA CN103426684B (en) | 2012-05-21 | 2012-05-21 | Electromagnetic switch, manufacturing method of electromagnetic switch and vehicle starter |
| EP13794212.4A EP2930734B1 (en) | 2012-05-21 | 2013-05-21 | Electromagnetic switch, manufacturing method therefor, and vehicle engine |
| PCT/CN2013/075981 WO2013174253A1 (en) | 2012-05-21 | 2013-05-21 | Electromagnetic switch, manufacturing method therefor, and vehicle engine |
| HUE13794212A HUE043481T2 (en) | 2012-05-21 | 2013-05-21 | Electromagnetic switch, manufacturing method therefor, and vehicle engine |
| BR112014028799-6A BR112014028799B1 (en) | 2012-05-21 | 2013-05-21 | METHOD FOR MAKING A SOLENOID KEY FOR A VEHICLE START, SOLENOID KEY FOR A VEHICLE START AND VEHICLE START |
| IN9825DEN2014 IN2014DN09825A (en) | 2012-05-21 | 2014-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210158379.XA CN103426684B (en) | 2012-05-21 | 2012-05-21 | Electromagnetic switch, manufacturing method of electromagnetic switch and vehicle starter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103426684A CN103426684A (en) | 2013-12-04 |
| CN103426684B true CN103426684B (en) | 2017-02-08 |
Family
ID=49623119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210158379.XA Active CN103426684B (en) | 2012-05-21 | 2012-05-21 | Electromagnetic switch, manufacturing method of electromagnetic switch and vehicle starter |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2930734B1 (en) |
| CN (1) | CN103426684B (en) |
| BR (1) | BR112014028799B1 (en) |
| HU (1) | HUE043481T2 (en) |
| IN (1) | IN2014DN09825A (en) |
| WO (1) | WO2013174253A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779038B (en) * | 2014-01-27 | 2016-07-13 | 北京阳铭诚科技有限责任公司 | Thrust keeps electric magnet |
| JP6416439B2 (en) * | 2016-04-27 | 2018-10-31 | 三菱電機株式会社 | Electromagnetic switch device for starter |
| CN106712385A (en) * | 2017-03-15 | 2017-05-24 | 合肥海鲨智能科技有限责任公司 | Planetary gear motor with high torque |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2018030B (en) * | 1978-03-30 | 1982-08-25 | Bosch Gmbh Robert | Electromagnetic switch for starter motor control in internal combustion engines |
| EP0643411A1 (en) * | 1993-09-14 | 1995-03-15 | INDUSTRIE MAGNETI MARELLI S.p.A. | Electromagnetic control device for an electric starter motor for internal combustion engines |
| EP0789379A1 (en) * | 1996-02-09 | 1997-08-13 | Valeo Equipements Electriques Moteur | Starter of motor vehicle having a sealing joint carried by an operating rod |
| JPH10149917A (en) * | 1996-11-20 | 1998-06-02 | Hamanako Denso Kk | Solenoid |
| JP2007165247A (en) * | 2005-12-16 | 2007-06-28 | Denso Corp | Electromagnetic switch for starter |
| CN101026051A (en) * | 2006-02-23 | 2007-08-29 | 株式会社电装 | Electromagnetic switch with fixed magnetic core having disc portion |
| CN201478208U (en) * | 2009-09-10 | 2010-05-19 | 迪克斯汽车电器(上海)有限公司 | Automotive starter electromagnetic switch |
| CN101858292A (en) * | 2009-04-02 | 2010-10-13 | 株式会社电装 | Be installed in the starter motor on the vehicle with idling stop device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008016281A (en) * | 2006-07-05 | 2008-01-24 | Denso Corp | Magnet switch |
| WO2011115050A1 (en) * | 2010-03-15 | 2011-09-22 | オムロン株式会社 | Contact switching device |
| CN202564149U (en) * | 2012-05-21 | 2012-11-28 | 博世汽车部件(长沙)有限公司 | Electromagnetic switch and vehicle starter |
-
2012
- 2012-05-21 CN CN201210158379.XA patent/CN103426684B/en active Active
-
2013
- 2013-05-21 EP EP13794212.4A patent/EP2930734B1/en active Active
- 2013-05-21 BR BR112014028799-6A patent/BR112014028799B1/en not_active IP Right Cessation
- 2013-05-21 HU HUE13794212A patent/HUE043481T2/en unknown
- 2013-05-21 WO PCT/CN2013/075981 patent/WO2013174253A1/en active Application Filing
-
2014
- 2014-11-19 IN IN9825DEN2014 patent/IN2014DN09825A/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2018030B (en) * | 1978-03-30 | 1982-08-25 | Bosch Gmbh Robert | Electromagnetic switch for starter motor control in internal combustion engines |
| EP0643411A1 (en) * | 1993-09-14 | 1995-03-15 | INDUSTRIE MAGNETI MARELLI S.p.A. | Electromagnetic control device for an electric starter motor for internal combustion engines |
| EP0789379A1 (en) * | 1996-02-09 | 1997-08-13 | Valeo Equipements Electriques Moteur | Starter of motor vehicle having a sealing joint carried by an operating rod |
| JPH10149917A (en) * | 1996-11-20 | 1998-06-02 | Hamanako Denso Kk | Solenoid |
| JP2007165247A (en) * | 2005-12-16 | 2007-06-28 | Denso Corp | Electromagnetic switch for starter |
| CN101026051A (en) * | 2006-02-23 | 2007-08-29 | 株式会社电装 | Electromagnetic switch with fixed magnetic core having disc portion |
| CN101858292A (en) * | 2009-04-02 | 2010-10-13 | 株式会社电装 | Be installed in the starter motor on the vehicle with idling stop device |
| CN201478208U (en) * | 2009-09-10 | 2010-05-19 | 迪克斯汽车电器(上海)有限公司 | Automotive starter electromagnetic switch |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2930734A1 (en) | 2015-10-14 |
| EP2930734A4 (en) | 2017-08-09 |
| BR112014028799A8 (en) | 2018-08-14 |
| WO2013174253A1 (en) | 2013-11-28 |
| BR112014028799B1 (en) | 2021-11-16 |
| IN2014DN09825A (en) | 2015-07-31 |
| CN103426684A (en) | 2013-12-04 |
| HUE043481T2 (en) | 2019-08-28 |
| EP2930734B1 (en) | 2019-04-03 |
| BR112014028799A2 (en) | 2017-06-27 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180509 Address after: No. 26 Lixiang Middle Road, Changsha economic and Technological Development Zone, Hunan Patentee after: Thorne (China) lattice Auto Parts Co., Ltd. Address before: 410100 No. 26 Lixiang Middle Road, Changsha economic and Technological Development Zone, Hunan Co-patentee before: Robert Bosch Ltd. Patentee before: Bosch Automotive Products (Changsha) Co., Ltd. |
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| TR01 | Transfer of patent right |