CN103426684A - Electromagnetic switch, manufacturing method of electromagnetic switch and vehicle starter - Google Patents
Electromagnetic switch, manufacturing method of electromagnetic switch and vehicle starter Download PDFInfo
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- CN103426684A CN103426684A CN201210158379XA CN201210158379A CN103426684A CN 103426684 A CN103426684 A CN 103426684A CN 201210158379X A CN201210158379X A CN 201210158379XA CN 201210158379 A CN201210158379 A CN 201210158379A CN 103426684 A CN103426684 A CN 103426684A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
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- 238000000034 method Methods 0.000 claims description 31
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- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 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
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Classifications
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- 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
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- 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
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- 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 the manufacture method of a kind of electromagnetic switch for vehicle starter, this electromagnetic switch and the vehicle starter that comprises this electromagnetic switch.
Background technology
The starter of motor vehicles is comprised of DC motor, transmission mechanism and controlling organization etc. usually.When the engine of starting vehicle, motor produces turning moment, and this turning moment is delivered to the gear ring on engine flywheel by the driven wheel of transmission mechanism, drives the crankshaft rotating of engine.
Controlling organization is for controlling the break-make of starter circuit capable, and engagement and the disengagement of controlling driven wheel and gear ring.At present, widely used starter controlling organization is electromagnetic switch.Fig. 1 shows a kind of structural representation of existing starter relay.This electromagnetic switch mainly comprises: be fixedly mounted on fixed iron core 4 and solenoid 6 in housing 2; By two binding posts 10 that are fixed on cap 8 carryings on housing 2; Can axially movable moving core 16 in solenoid 6 inboards; Be fixed on the push rod 12 and 18 on moving core 16, wherein contact bridge 14 is equipped with in push rod 12 rear ends, and push rod 18 front ends are provided with the engagement windows engaged with shift fork 9.
After vehicle ignition switch is connected, solenoid 6 produces electromagnetic force in moving core 16, thereby make moving core 16 move towards fixed iron core 4 backward, touch two binding posts 10 so that contact bridge 14 is driven by push rod 12 so that the two is electrically connected to, connect thus the main circuit of motor and the drive motor rotation.Touch two binding posts 10 and, after set up being electrically connected between two binding posts 10, moving core 16 continues to move a bit of reservation stroke towards fixed iron core 4 at contact bridge 14, unshakable in one's determination 4 stop until be fixed.During this period, the front end of push rod 18 pulls transmission mechanism by shift fork 9, thereby its driven wheel moves forward and meshes with the gear ring on engine flywheel, pilots engine thus.Described reservation stroke can guarantee that electromagnetic switch still can maintain above-mentioned functions after the contact site ablation between contact bridge 14 and two binding posts 10.
When the assembling of the electromagnetic switch shown in Fig. 1, push rod 18 front ends are pre-formed engagement windows, and push rod 12,18 is assembled on moving core 16 in advance, solenoid 6 and fixed iron core 4 are installed in housing 2, to be arranged on the moving core 16 of push rod 12,18 solenoid 6 inboards again, and then assemble contact bridge 14 on push rod 12, finally cap 8 is fixed on housing 2.In this electromagnetic switch, after assembling completes, the position relationship between each parts can't be regulated with regard to being determined.Due to the Complex Dimensional Chain Analyses existed from moving core 16, solenoid 6, housing 2 to cap 8, therefore the margin of tolerance of described reservation stroke is larger.On the other hand, for the positioning precision of engagement windows, have the problem of Complex Dimensional Chain Analyses between the problem that can not regulate after also existing electromagnetic switch to assemble and engagement windows and binding post 10, so the margin of tolerance of engagement windows size and position is also larger.
The margin of tolerance of above-mentioned two aspects is brought variety of issue than conference, low etc. such as the positioning precision of driven wheel.
Summary of the invention
The present invention is intended to solve the low problem of positioning precision of the driven wheel that the margin of tolerance of the reservation stroke of the electromagnetic switch in the vehicle starter of prior art and engagement windows size and position causes more greatly.
For this reason, according to an aspect of the present invention, provide a kind of vehicle starter electromagnetic switch manufacture method, comprised the steps:
(1) fixed iron core is fixedly mounted in housing;
(2) will with the moving core of single-piece push rod, be arranged in housing, wherein moving core can be arranged in housing movably forward and backward, push rod can be arranged in moving core slidingly back and forth, and push rod is through fixed iron core, so that expose from the rear portion of fixed iron core the rear end of push rod;
(3) elastic elements on push rod, and on the rear end of push rod, contact bridge is installed, so that can resisting the active force of described flexible member, moves backward with respect to contact bridge push rod;
(4) push rod is moved backward, until detect between two binding posts being located at the contact bridge back, by described contact bridge, set up initial status of electrically connecting;
(5) make push rod further move backward one section and retain stroke;
(6) push against under the state of fixed iron core moving core is fixed on push rod at the maintenance moving core.
In above-mentioned manufacture method, described reservation stroke can be for 0.5 to 1.5mm, preferably approximately 1mm.
In above-mentioned manufacture method, preferably, adopt current sensor to detect initial status of electrically connecting, described current sensor is determined between two binding posts and has been set up initial status of electrically connecting detecting while starting to have electric current to flow through between two binding posts.
In above-mentioned manufacture method, preferably, in step (7), moving core to be fixed on push rod be by a part of material crimping by moving core, rivet or be welded on push rod and realize.
In above-mentioned manufacture method, preferably, the described a part of material that is crimped, rivets or weld of described moving core is formed on the moving core front end by the form with cylinder in advance.
In above-mentioned manufacture method, preferably, the position in described a part of material that will be crimped or be riveted on moving core of push rod is pre-formed roughened surface, depressions or protrusions.
Preferably, above-mentioned manufacture method also is included in the following step that step (7) is carried out afterwards: (8) push against under the state of fixed iron core and process for the upper end by shift fork and insert engagement windows wherein at the push rod front end at the maintenance moving core.
Preferably, described engagement windows is made by mechanical stamping-out or laser cutting.
The present invention provides a kind of electromagnetic switch for vehicle starter on the other hand at it, and it can utilize aforementioned manufacture method to make, and comprises: fixed iron core; The moving core that can move forward and backward with respect to fixed iron core; Be located at a pairs of posts at fixed iron core back location place; By the single-piece push rod of moving core carrying, described push rod is through fixed iron core, so that expose from the rear portion of fixed iron core the rear end of push rod; Be arranged on the flexible member on push rod; And be arranged on putting back-end and, facing to the contact bridge of a described pairs of posts, the active force that described push rod can resisted described flexible member moves backward with respect to contact bridge; Wherein, at described contact bridge, with two binding posts, contact and set up initial status of electrically connecting between two binding posts after, push rod is moved backward one section retain stroke, keep moving core to push against under the state of fixed iron core simultaneously, described moving core is fixed on push rod.
In above-mentioned electromagnetic switch, preferably, described reservation stroke is 0.5 to 1.5mm, preferably approximately 1mm.
In above-mentioned electromagnetic switch, preferably, a part of material of moving core is crimped, rivets or is welded on push rod.
In above-mentioned electromagnetic switch, preferably, the form of the described a part of material that is crimped, rivets or weld of described moving core is the cylindrical shape part be pre-formed at the moving core front end.
In above-mentioned electromagnetic switch, preferably, the position in the described a part of material that is crimped or is riveted on moving core of push rod is provided with roughened surface, depressions or protrusions.
In above-mentioned electromagnetic switch, preferably, the front end of push rod is provided with for the upper end by shift fork and inserts engagement windows wherein.
The present invention provides a kind of vehicle starter at it aspect another, comprising: motor; The transmission mechanism be connected with the output shaft of motor; And foregoing electromagnetic switch, it controls the operation of described motor and transmission mechanism.
According to the present invention, single push rod is used, and retain stroke and be after the initial status of electrically connecting between contact bridge and two binding posts is detected and further move and establish backward by push rod, therefore retain the impact that stroke is not subject to Complex Dimensional Chain Analyses, thereby the tolerance of reservation stroke can reduce.
In addition, initially contacting rear push-rod at contact bridge and two binding posts has further moved backward one section and retains stroke and keep moving core to be pushed against under the state of fixed iron core push rod and moving core are fixed together and form engagement windows.Therefore, the size of engagement windows and the margin of tolerance of location also can reduce, and the positioning precision of driven wheel can improve.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation according to the electromagnetic switch in the vehicle starter of prior art.
Fig. 2 is the schematic diagram according to the starting stage of the structure of the electromagnetic switch in the vehicle starter of a preferred embodiment of the present invention and assembling process.
Fig. 3 is the schematic diagram in interstage of the assembling process of the electromagnetic switch in Fig. 2.
Fig. 4 is the schematic diagram of final stage of the assembling process of the electromagnetic switch in Fig. 2.
Fig. 5 is the contact bridge that may adopt in the electromagnetic switch in Fig. 2 and the schematic diagram of mounting means thereof.
Fig. 6 is the structural representation according to the electromagnetic switch in the vehicle starter of another preferred embodiment of the present invention.
Embodiment
Preferred implementations more of the present invention are described with reference to the accompanying drawings.
Shown the electromagnetic switch for vehicle starter according to an embodiment of the invention in Fig. 2.This electromagnetic switch comprises housing 2, the tube reducing part 2a that it has the general cylindrical shape body and is located at body front end (left end in Fig. 2, towards the end of that side of vehicle motor).
In the rear portion of the body of housing 2, fixedly mounting fixed iron core 4.This fixed iron core 4 comprise roughly disc large diameter portion in the body that is fixed on housing 2, from large diameter portion forward outstanding substantial cylindrical path part, from path part outstanding roughly frustoconical part forward.In addition, the guide through hole connected before and after being formed with vertically in fixed iron core 4.
The nonmagnetic substance of general cylindrical shape (for example brass) lining 32 is arranged in housing 2, and wherein, the front end of lining 32 is plugged in the tube reducing part 2a of housing 2, and rear end is sleeved on the path of fixed iron core 4 and partly goes up, and thus lining 32 is fixed in housing 2.
In the roughly front portion of lining 32, can axially movable mode arranging moving core 16.This moving core 16 is roughly cylindrical, is formed with from front to back installation through hole, spring storage tank, truncated cone shape tank that diameter increases successively in it.The roughly frustoconical part of fixed iron core 4 is suitable for inserting in the truncated cone shape tank of moving core 16.
The path back segment 30b of push rod 30 extends back vertically from large footpath leading portion 30a, and through the guide through hole in fixed iron core 4, expose from the rear end face of fixed iron core 4 rear end of path back segment 30b.
The front end of large footpath leading portion 30a stretches out forward from the front end face of moving core 16, and the front end of large footpath leading portion 30a has (for example being formed with) homalocephalus section 40, to process engagement windows in this homalocephalus section, for the upper end of shift fork (not shown) is inserted wherein, the approximate mid-section of this shift fork is supported pivotly, and the lower end of this shift fork is connected with transmission mechanism.Like this, push rod 30 when (in Fig. 2 to the right) is mobile vertically backward, can drives transmission mechanism by shift fork and axially move forward so that the gear ring of the driven wheel of transmission mechanism on engine flywheel moves and with its engagement.Otherwise push rod 30 when (in Fig. 2 left) is mobile vertically forward, can drives transmission mechanism by shift fork and axially move backward, so that the driven wheel of transmission mechanism breaks away from the gear ring on engine flywheel.
In addition, be set with sleeve 20 and Compress Spring 22 on push rod 30.Sleeve 20 is positioned at the front portion of path back segment 30b, and Compress Spring 22 is sandwiched between the anterior lip 28a of the rear end of sleeve 20 and mount pad 28.The external diameter of sleeve 20 is suitable for being engaged in slidably in the guide through hole of fixed iron core 4.
At contact bridge 14, by mode as above, be held under the state of push rod 30 rear ends, push rod 30 can resisted the thrust of Compress Spring 22 and axially moving forward (slip) on the path back segment 30b of push rod 30, but its movement backward stops fastened device 42.
Be appreciated that, fastener 42 can have any suitable structure, as shown in Figure 5, wherein fastener 42 comprises packing ring 44, the steel ring 46 that is positioned at packing ring 44 rear sides pushed against in contact bridge 14 rear sides, the clamp 48 that is fixed on push rod 30 rear ends in steel ring 46 back to example.Be appreciated that any permission contact bridge 14 with respect to push rod 30, move forward but stop its rear end at push rod 30 with respect to push rod 30 backward mobile structure and element can adopt.
Two binding posts 10 can be fixed in the material of cap 8 by produced by insert molding.Perhaps, two binding posts 10 can utilize securing member to be fixed on cap 8.For example, the rear portion of each binding post 10 can be formed with screw thread, in order to utilize with the nut (not shown) of described screw-threaded engagement, binding post 10 is lock onto on cap 8.
In addition, between moving core 16 and fixed iron core 4, Compress Spring 24 is housed.The front end of this Compress Spring 24 is arranged in the spring storage tank of moving core 16 and pushes against in the bottom of spring storage tank.The rear sleeve of this Compress Spring 24 is located on sleeve 20.The rear end of this Compress Spring 24 pushes against its frustoconical part roughly in fixed iron core 4() front end face.
Compress Spring 24 is as the back-moving spring of push rod 30.Compress Spring 22, as the back-moving spring of contact bridge 14, also is also used as the back-moving spring of push rod 30.It is contemplated that, also can be equipped with for push rod and contact bridge the reseting elastic element of other form.
At the front end of moving core 16, be formed with flange 16a round push rod 30, the projection forward of its front end face from the body of moving core 16.The external diameter of this flange 16a is much smaller than the radial dimension of the body of moving core 16.
Front end at flange 16a, be formed with the columnar 16b of section that is fixedly connected with round push rod 30, the projection forward of its front end face from flange 16a, and its radial thickness be arranged to can be by instruments such as crimping, riveted joint, welding by the fixing large footpath of the push rod 30(leading portion 30a of the modes such as crimping, riveted joint, welding) periphery.
According to the present invention, when the electromagnetic switch shown in shop drawings 2, above-described each element is at first out manufactured, but not yet processes engagement windows in homalocephalus section 40.
Then, assemble each element.At first, fixed iron core 4 is arranged in housing 2 with lining 32 and solenoid 6.
Next, from the front side of moving core 16, the rear end of push rod 30 is inserted the installation through hole of moving core 16, so that the large footpath leading portion 30a of push rod 30 is slidably located in the installation through hole of moving core 16.
Next, cover sleeved 20 and Compress Spring 24 on push rod 30.
Next, by moving core 16 with push rod 30, sleeve 20, Compress Spring 24 from front side is packed housing 2 into, wherein moving core 16 is inserted in lining 32 slidably; The path back segment 30b of push rod 30 is through the guide through hole of fixed iron core 4, so that expose from fixed iron core 4 rear sides the rear end of push rod 30; Sleeve 20 is inserted in the guide through hole of fixed iron core 4 at least in part, and Compress Spring 24 is compressed between moving core 16 and fixed iron core 4.
Next, from rear side, Compress Spring 22 is sleeved on the path back segment 30b of push rod 30, and in its most of guide through hole of inserting fixed iron core 4, then erection seat 28, contact bridge 14 and fastener 42 on the rear end of push rod 30 successively.Compress Spring 22 by precommpression between sleeve 20 and mount pad 28.
Next, cap 8 is installed to housing 2 from rear side with two binding posts 10.
In pre-assembled electromagnetic switch like this, push rod 30 can slide in moving core 16.
Next, connect the checkout gear that can detect on off operating mode between two binding posts 10, for example current sensor at the rear portion of the exposure of two binding posts 10.
Apply axially backward the thrust of (in Fig. 2 to the right) to push rod 30, so that push rod 30 moves backward, until contact bridge 14 touches the contact jaw 10a of two binding posts 10, as shown in Figure 3.In this process, the thrust that moving core 16 may also resisted Compress Spring 24 moves (for example being driven by homalocephalus section 40) backward.
After contact bridge 14 initially touches two binding posts 10, contact bridge 14 is prevented from and can not continues to move backward, and push rod 30 continuation moves backward.Now, the compression stress in Compress Spring 22 starts to increase, so that the contact between contact bridge 14 and two binding posts 10 increases gradually.For example, after contact bridge 14 initially touches the first distance (0.05 to 0.1mm) that push rod 30 after two binding posts 10 continues to have moved backward a section very little, set up initial status of electrically connecting between contact bridge 14 and two binding posts 10, now the compression stress added value in Compress Spring 22 (being that current compression stress deducts pre-compression force) is very little.
This initial status of electrically connecting can detect by checkout gear, thereby checkout gear obtains the initial turn-on signal.For example, start to have electric current two binding posts 10 of flowing through, obtained the initial current signal of two binding posts 10 of flowing through by current sensor.
After the initial turn-on signal is detected, make further mobile second distance backward of push rod 30, this second distance is greater than the first distance.For example, second distance is 0.5 to 1.5mm, preferably approximately 1mm.This second distance can be regarded as the reservation stroke, in order to guarantee still to realize reliable the electrical connection after the contact site ablation between contact bridge 14 and two binding posts 10.
Now, electromagnetic switch is in position shown in Fig. 4, and wherein, fastener 42 separates a segment distance L(with contact bridge 14 and equals first apart from adding second distance), this distance is that contact bridge 14 and two binding posts 10 initially contact the displacement backward of rear push-rod 30.
In this state, moving core 16, along backward directions pushings, until it pushes against in fixed iron core 4, thereby is prevented from further moving backward.For example, now the rear end face of moving core 16 pushes against on the substantial cylindrical path front end face partly of fixed iron core 4.
Keep being in the described place of displacement backward and moving core 16 is pushed against under the state on fixed iron core 4 at push rod 30, push rod 30 is fixed in moving core 16.The two be fixedly by instruments such as crimping, riveted joint, welding by the 16b of the section that is fixedly connected with of moving core 16 by the fixing large footpath of the push rod 30(leading portion 30a of the modes such as crimping, riveted joint, welding) periphery realize.The instruments such as crimping, riveted joint, welding that exist for of flange 16a provide larger operating space.
In order to improve the bonding strength between push rod 30 and moving core 16, carry out preliminary treatment on the position that can be crimped in the expection of push rod 30 or rivet, such as forming roughened surface or depression, projection etc.
After push rod 30 and moving core 16 are fixed together, keeping moving core 16 to push against under the state of fixed iron core 4, in the homalocephalus section 40 of push rod 30, process engagement windows 40a, in order to the upper end by shift fork, insert wherein.Engagement windows 40a can form by methods such as punching press, laser processings.When processing engagement windows 40a, one or more position on housing 2 (for example surface) can be used as positioning datum.
After processing engagement windows 40a, unclamp moving core 16, so that it moves forward (in Fig. 4 left) with push rod 30 under the thrust of Compress Spring 22 and 24.At push rod 30, move forward through after afore-mentioned distance L, fastener 42 touches contact bridge 14 and it is pulled away to two binding posts 10.Next, under the effect of Compress Spring 24, moving core 16 continues to move forward with push rod 30, until the anterior lip 28a of mount pad 28 pushes against in the rear end of fixed iron core 4, for example pushes against in the groove of the rear end of fixed iron core 4.In this state, moving core 16 can not further move forward with push rod 30 is prevented from.
It may be noted that, in the manufacture process according to above-mentioned electromagnetic switch of the present invention, the sequence of each parts is not limited to previously described, but can set according to the concrete structure of these parts.
Structure and manufacture process according to above-mentioned electromagnetic switch of the present invention, retain stroke and be after the initial status of electrically connecting between contact bridge 14 and two binding posts 10 is detected and further move and establish backward by push rod 30, therefore retain the impact that stroke is not subject to Complex Dimensional Chain Analyses, thereby the tolerance of reservation stroke can be very little.
In addition, single push rod 30 is used, to replace two push rods of the prior art.In this structure, initially contact rear push-rod 30 at contact bridge 14 and two binding posts 10 and further moved backward a segment distance and kept moving core 16 to be pushed against under the state of fixed iron core 4 push rod 30 and moving core 16 are fixed together and form engagement windows 40a.Therefore, have simple dimension chain (the single push rod 30 of contact bridge 14-) between engagement windows 40a and binding post 10, so the margin of tolerance of the size of engagement windows and location is also very little.In other words, size and alignment tolerance that engagement windows only exists finish to form, and the middle build-up tolerance that affects engagement windows size and alignment tolerance scope in prior art is avoided.The size of engagement windows of the present invention and the tolerance of location are much smaller than prior art, and the positioning precision of driven wheel can greatly improve.
Can see, the present invention improves structure and the manufacture of electromagnetic switch with single-piece push rod, to reduce to retain tolerance and the size of engagement windows and the tolerance of location of stroke.Structure and the layout of other element relevant with the single-piece push rod, for example, the arrangement of the structure of sleeve 20, mount pad 28, fastener 42, Compress Spring 22,24 etc., be not construed as limiting above-mentioned thought of the present invention.
For example, in Fig. 6, shown according to the electromagnetic switch in the vehicle starter of another preferred embodiment of the present invention, shown in itself and Fig. 2-4, the difference of electromagnetic switch mainly is that sleeve 20 has the diameter of increasing.In this case, the diameter of the guide through hole of fixed iron core 4 correspondingly increases.Result, space between the outer peripheral face of the path back segment 30b of the internal perisporium of the guide through hole of fixed iron core 4 and push rod 30 increases, so that the magnetic gap between fixed iron core 4 and push rod 30 strengthens, thereby the impact of the magnetic circuit that push rod 30 produces solenoid 6 reduces, and this makes the magnetic material (for example ordinary steel) that utilizes low price make push rod 30 becomes possibility.In contrast, the push rod in electromagnetic switch shown in Fig. 2-4 30 is made by the nonmagnetic substance (such as copper, copper alloy, stainless steel etc.) of high price usually.
Other side of the present invention relates to the electromagnetic switch with aforementioned structure of making by above-mentioned manufacture method and the vehicle starter that comprises this electromagnetic switch.
Although described the present invention, the details shown in scope of the present invention is not limited to reference to concrete execution mode here.In the situation that do not depart from basic principle of the present invention, can make various modifications for these details.
Claims (15)
1. a vehicle starter electromagnetic switch manufacture method, comprise the steps:
(1) fixed iron core is fixedly mounted in housing;
(2) will with the moving core of single-piece push rod, be arranged in housing, wherein moving core can be arranged in housing movably forward and backward, push rod can be arranged in moving core slidingly back and forth, and push rod is through fixed iron core, so that expose from the rear portion of fixed iron core the rear end of push rod;
(3) elastic elements on push rod, and on the rear end of push rod, contact bridge is installed, so that can resisting the active force of described flexible member, moves backward with respect to contact bridge push rod;
(4) push rod is moved backward, until detect between two binding posts being located at the contact bridge back, by described contact bridge, set up initial status of electrically connecting;
(5) make push rod further move backward one section and retain stroke;
(6) push against under the state of fixed iron core moving core is fixed on push rod at the maintenance moving core.
2. vehicle starter electromagnetic switch manufacture method as claimed in claim 1, wherein, described reservation stroke is 0.5 to 1.5mm, preferably approximately 1mm.
3. vehicle starter electromagnetic switch manufacture method as claimed in claim 1 or 2, wherein, adopt current sensor to detect initial status of electrically connecting, described current sensor is determined between two binding posts and has been set up initial status of electrically connecting detecting while starting to have electric current to flow through between two binding posts.
4. vehicle starter electromagnetic switch manufacture method as claimed any one in claims 1 to 3, wherein, in step (7), moving core to be fixed on push rod be by a part of material crimping by moving core, rivet or be welded on push rod and realize.
5. vehicle starter electromagnetic switch manufacture method as claimed in claim 4, wherein, the described a part of material that is crimped, rivets or weld of described moving core is formed on the moving core front end by the form with cylinder in advance.
6. vehicle starter electromagnetic switch manufacture method as claimed in claim 4, wherein, the position in described a part of material that will be crimped or be riveted on moving core of push rod is pre-formed roughened surface, depressions or protrusions.
7. vehicle starter electromagnetic switch manufacture method as described as any one in claim 1 to 6 also is included in the following step that step (7) is carried out afterwards:
(8) push against under the state of fixed iron core and process for the upper end by shift fork and insert engagement windows wherein at the push rod front end at the maintenance moving core.
8. vehicle starter electromagnetic switch manufacture method as claimed in claim 7, wherein, described engagement windows is made by mechanical stamping-out or laser cutting.
9. the electromagnetic switch for vehicle starter comprises:
Fixed iron core;
The moving core that can move forward and backward with respect to fixed iron core;
Be located at a pairs of posts at fixed iron core back location place;
By the single-piece push rod of moving core carrying, described push rod is through fixed iron core, so that expose from the rear portion of fixed iron core the rear end of push rod;
Be arranged on the flexible member on push rod; And
Be arranged on putting back-end and, facing to the contact bridge of a described pairs of posts, the active force that described push rod can resisted described flexible member moves backward with respect to contact bridge;
Wherein, at described contact bridge, with two binding posts, contact and set up initial status of electrically connecting between two binding posts after, push rod is moved backward one section retain stroke, keep moving core to push against under the state of fixed iron core simultaneously, described moving core is fixed on push rod.
10. electromagnetic switch as claimed in claim 9, wherein, described reservation stroke is 0.5 to 1.5mm, preferably approximately 1mm.
11. electromagnetic switch as described as claim 9 or 10, wherein, a part of material of moving core is crimped, rivets or is welded on push rod.
12. electromagnetic switch as described as any one in claim 9 to 10, wherein, the form of the described a part of material that is crimped, rivets or weld of described moving core is the cylindrical shape part be pre-formed at the moving core front end.
13. electromagnetic switch as described as claim 11 or 12, wherein, the position in the described a part of material that is crimped or is riveted on moving core of push rod is provided with roughened surface, depressions or protrusions.
14. electromagnetic switch as described as any one in claim 9 to 13, wherein, the front end of push rod is provided with for the upper end by shift fork and inserts engagement windows wherein.
15. a vehicle starter comprises:
Motor;
The transmission mechanism be connected with the output shaft of motor; And
Electromagnetic switch as described as any one in claim 9 to 14, it controls the operation of described motor and transmission 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 |
| 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 |
| HUE13794212A HUE043481T2 (en) | 2012-05-21 | 2013-05-21 | Electromagnetic switch, manufacturing method therefor, and vehicle engine |
| 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 true CN103426684A (en) | 2013-12-04 |
| CN103426684B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779038A (en) * | 2014-01-27 | 2014-05-07 | 北京阳铭诚科技有限责任公司 | Thrust maintaining electromagnet |
| 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 |
| CN109072850A (en) * | 2016-04-27 | 2018-12-21 | 三菱电机株式会社 | Electromagnetic starter switch device |
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| 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 |
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| 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 |
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| JP2008016281A (en) * | 2006-07-05 | 2008-01-24 | Denso Corp | Magnet switch |
| US9035735B2 (en) * | 2010-03-15 | 2015-05-19 | Omron Corporation | Coil terminal |
| 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 HU HUE13794212A patent/HUE043481T2/en unknown
- 2013-05-21 BR BR112014028799-6A patent/BR112014028799B1/en not_active IP Right Cessation
- 2013-05-21 WO PCT/CN2013/075981 patent/WO2013174253A1/en active Application Filing
-
2014
- 2014-11-19 IN IN9825DEN2014 patent/IN2014DN09825A/en unknown
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| 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 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779038A (en) * | 2014-01-27 | 2014-05-07 | 北京阳铭诚科技有限责任公司 | Thrust maintaining electromagnet |
| 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 |
| CN109072850A (en) * | 2016-04-27 | 2018-12-21 | 三菱电机株式会社 | Electromagnetic starter switch device |
| CN109072850B (en) * | 2016-04-27 | 2020-07-14 | 三菱电机株式会社 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112014028799A2 (en) | 2017-06-27 |
| EP2930734B1 (en) | 2019-04-03 |
| BR112014028799A8 (en) | 2018-08-14 |
| EP2930734A4 (en) | 2017-08-09 |
| CN103426684B (en) | 2017-02-08 |
| IN2014DN09825A (en) | 2015-07-31 |
| EP2930734A1 (en) | 2015-10-14 |
| BR112014028799B1 (en) | 2021-11-16 |
| WO2013174253A1 (en) | 2013-11-28 |
| HUE043481T2 (en) | 2019-08-28 |
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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. |