CN203415500U - A vehicle starter electromagnetic switch, a vehicle starter, and a vehicle starting system - Google Patents

A vehicle starter electromagnetic switch, a vehicle starter, and a vehicle starting system Download PDF

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Publication number
CN203415500U
CN203415500U CN201320338801.XU CN201320338801U CN203415500U CN 203415500 U CN203415500 U CN 203415500U CN 201320338801 U CN201320338801 U CN 201320338801U CN 203415500 U CN203415500 U CN 203415500U
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China
Prior art keywords
electromagnetic switch
fixed contact
vehicle
armature
current
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CN201320338801.XU
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Chinese (zh)
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阮先轸
黄少堂
张晓丹
***
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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Abstract

Aimed at defects of multiple components, a large size, and large occupied installing space of a conventional vehicle starter, the utility model provides a vehicle starter electromagnetic switch. The vehicle starter electromagnetic switch comprises a housing in which a first electromagnetic switch, a second electromagnetic switch, a current-limiting resistor, and a driving chip are disposed. In the vehicle starter electromagnetic switch provided in the utility model, by integrating the first electromagnetic switch, the second electromagnetic switch, the current-limiting resistor, and the driving chip into one housing, a conventional starter electromagnetic switch can be directly replaced while other components are not required to be used and a wire harness system or the structure of the starter itself is not required to be changed. Therefore, while achieving large starting current suppression and storage battery voltage drop reduction, the vehicle starter electromagnetic switch has advantages of a small size and light weight so as to save the internal installing space of a vehicle and to be beneficial to the arrangement of other components.

Description

Vehicle starter electromagnetic switch, vehicle starter and vehicle start system
Technical field
The utility model belongs to vehicle launch technical field, particularly relates to a kind of vehicle starter electromagnetic switch, vehicle starter and vehicle start system.
Background technology
Conventional vehicles engine start is realized by starter, and starter is converted to the electric energy of storage battery the mechanical energy of actuating motor, then by gear drive, mechanical energy is transferred on engine crankshaft, thereby realizes the startup of engine.In start-up course, for overcoming engine resistance torque, can produce larger starting current at start loop.Passenger vehicle engine starting current is about 200A~1000A, the starting current of commercial vehicle engine is up to 2000A, excessive starting current can cause the deep discharge of storage battery and larger voltage drop on the one hand, the dynamics that the electromagnet armature of electromagnetic switch promotes driven wheel by shift fork is on the other hand larger, can cause the mill teeth of starter driving gear.In being equipped with the vehicle of idling start stop system, starting process can be particularly frequent, storage battery deep discharge can cause storage battery aging frequently, and storage battery pressure drop may affect the normal operation of car load electrical load frequently, the useful life that mill teeth phenomenon can reduce starter driving gear simultaneously.
The voltage drop that reduces engine starting process storage battery has several different methods, for example in storage battery and crucial electrical load, increase DC/DC(DC-DC power supply), in start-up course, DC/DC can guarantee the stable of output end voltage, but this mode does not change starting current, the mill teeth problem of starter driving gear does not improve.Also having a kind of mode is in start loop, to increase an independently current-limiting resistance, by controlling current-limiting resistance access start loop, realizes the mill teeth phenomenon that reduces starting current and reduce starter driving gear.Current-limiting resistance access start loop has two kinds of modes to realize, and a kind of is to adopt double-contact formula switch, by mechanical structure, realizes the intervention work at initial start stage current-limiting resistance; Another kind is to adopt drive circuit to drive relay to realize, which drive circuit and contact point kit can be integrated on starter, also can be arranged in accumulator terminal, but this mode current-limiting resistance needs independently to install and volume is larger, both be unfavorable for arranging, taken again too much installing space.Above two kinds of modes all need to increase extra parts, and can relate to the modification of harness system or starter itself.
Utility model content
Technical problem to be solved in the utility model is that, volume more for existing vehicle starter parts is large and take the too much defect of installing space, and a kind of vehicle starter electromagnetic switch is provided.
It is as follows that the utility model solves the problems of the technologies described above adopted technical scheme:
A kind of vehicle starter electromagnetic switch is provided, comprises housing, described enclosure interior is provided with the first electromagnetic switch, the second electromagnetic switch, current-limiting resistance and drives chip, wherein,
Described the first electromagnetic switch is connected to storage battery to the main circuit of actuating motor, controls the startup of actuating motor by controlling the break-make of described main circuit;
After the switch-side of described current-limiting resistance and described the second electromagnetic switch is in parallel, be connected on described main circuit, the opening and closing of the switch-side of described the second electromagnetic switch respectively corresponding described current-limiting resistance access described main circuit and described current-limiting resistance by short circuit;
Described driving chip is connected with the control side of described the second electromagnetic switch, to control the opening and closing of the switch-side of described the second electromagnetic switch.
Further, described the first electromagnetic switch and described the second electromagnetic switch are along described housing shaft to being arranged side by side.Be arranged side by side the volume that is conducive to reduce electromagnetic switch itself, thereby further save installing space.
Further, described the first electromagnetic switch comprises the first iron core being fixedly installed on described housing, the first armature being oppositely arranged with described the first iron core, the first coil windings around described the first iron core and described the first armature setting, the first push rod through described the first iron core, be fixedly installed on first movable contact of described first push rod one end, be fixedly installed on the first fixed contact on described housing and for driving the first returning device of described the first armature and described the first movable contact return when described the first coil windings power-off, described the first movable contact and described the first fixed contact are one group of normally open contact, described the first fixed contact is connected on described main circuit, after the switch-side parallel connection of described current-limiting resistance and described the second electromagnetic switch, connect with described the first fixed contact, described the first push rod moves axially with described the first movable contact of closure and described the first fixed contact under the driving of described the first armature.The first electromagnetic switch compact conformation of above-mentioned form, takes up room little.
Further, the control side of described the second electromagnetic switch comprise the second iron core being fixedly installed on described housing, the second armature being oppositely arranged with described the second iron core, around the second coil windings of described the second iron core and described the second armature setting, the second push rod being fixedly connected with described the second armature through described the second iron core and one end, and the second movable contact of described the second push rod other end butt and for driving the second returning device of described the second armature and described the second movable contact return when described the second coil windings power-off;
The switch-side of described the second electromagnetic switch comprises the second fixed contact being fixedly installed on described housing, described the second movable contact and described the second fixed contact are one group of normally closed interlock, and described the second push rod moves axially with described the second movable contact of separation and described the second fixed contact under the driving of described the second armature.
The second electromagnetic switch compact conformation of above-mentioned form, takes up room little.
Further, described driving chip is arranged on the second iron core, and the electrical connection of the two ends of described driving chip is at the two ends of described the second coil windings.Drive chip to be set directly on the second iron core, easy for installation, compact conformation.
Further, described current-limiting resistance is arranged between described driving chip and described the second fixed contact and is fixedly installed on described housing, and the electrical connection of the two ends of described current-limiting resistance is at the two ends of described the second fixed contact.Owing to driving between chip and the second fixed contact, must form a space, so current-limiting resistance is arranged between described driving chip and described the second fixed contact, current-limiting resistance can not take other space, characteristics of compact layout again.
Further, described the first movable contact and described the first fixed contact are between described the first iron core and described the second armature.Define thus the relative position relation of the first electromagnetic switch and the second electromagnetic switch, and make the first armature of the first electromagnetic switch and the second armature moving direction of the second electromagnetic switch consistent, therefore, the characteristics of compact layout of whole vehicle starter electromagnetic switch, axial length is under control, and can obtain the vehicle starter electromagnetic switch of small volume.
Further, on described housing, be fixedly installed B binding post, S binding post and M binding post;
Described M binding post is positioned under described the first fixed contact and with the output of described the first fixed contact and is electrically connected;
Described S binding post is positioned at the outside of described the second fixed contact and is electrically connected with the input of the input of described the second coil windings, the input of described driving chip and described the first coil windings;
Described B binding post is positioned at the outside of described current-limiting resistance and is electrically connected with the input of described the second fixed contact and the input of described current-limiting resistance; The input electrical connection of the output of described the second fixed contact and described the first fixed contact.
Above-mentioned binding post is set, so that the electrical connection of vehicle starter electromagnetic switch and other parts of starter.
The vehicle starter electromagnetic switch that the utility model provides, by the first electromagnetic switch, the second electromagnetic switch, current-limiting resistance and drive integrated chip in same housing, can directly replace conventional starter relay, and do not need to increase other parts, do not need to change harness system or change this body structure of starter yet, when realizing inhibition great start-up current, reducing storage battery pressure drop, also there is the advantages such as volume is little, lightweight, thereby can save the inside installing space of vehicle, be conducive to the layout of other parts on vehicle.
In addition, the utility model also provides a kind of vehicle starter, and described vehicle starter has comprised above-mentioned vehicle starter electromagnetic switch.
The vehicle starter that the utility model provides, because its vehicle starter electromagnetic switch is by the first electromagnetic switch, the second electromagnetic switch, current-limiting resistance and drive integrated chip in same housing, therefore, this vehicle starter electromagnetic switch is when realizing inhibition great start-up current, reducing storage battery pressure drop, also there is the advantages such as volume is little, lightweight, correspondingly, the vehicle starter consisting of it also possesses the advantages such as volume is little, lightweight, thereby can save the inside installing space of vehicle, be conducive to the layout of other parts on vehicle.
In addition, the utility model also provides a kind of vehicle start system, and described vehicle start system comprises above-mentioned vehicle starter electromagnetic switch.
The vehicle start system that the utility model provides, because its vehicle starter electromagnetic switch is by the first electromagnetic switch, the second electromagnetic switch, current-limiting resistance and drive integrated chip in same housing, therefore, this vehicle starter electromagnetic switch is when realizing inhibition great start-up current, reducing storage battery pressure drop, also there is the advantages such as volume is little, lightweight, correspondingly, the vehicle start system consisting of it also possesses the advantages such as volume is little, lightweight, thereby can save the inside installing space of vehicle, be conducive to the layout of other parts on vehicle.
Accompanying drawing explanation
Fig. 1 is the structural representation of the vehicle starter electromagnetic switch that provides of the utility model one embodiment;
Fig. 2 is the electrical connection schematic diagram of the vehicle start system that provides of the utility model one embodiment;
Fig. 3 is the starting process schematic diagram of the vehicle start system that provides of the utility model one embodiment;
Fig. 4 is the change curve that adopts starting current and accumulator voltage in the vehicle start system starting process of conventional vehicle starter electromagnetic switch;
Fig. 5 is the change curve that adopts starting current and accumulator voltage in the vehicle start system starting process of the vehicle starter electromagnetic switch that the utility model one embodiment provides.
Reference numeral is as follows:
1, the first armature; 2, the first return spring; 3, the first push rod; 4, the first coil windings; 5, the first iron core; 6, the first touch spring; 7, the first movable contact; 8, the first fixed contact; 9, the second coil windings; 10, the second return spring; 11, drive chip; 12, the second fixed contact; 13, the second touch spring; 14, S binding post; 15, rubber ring; 16, M binding post; 17, the second armature; 18, the second push rod; 19, the second iron core; 20, current-limiting resistance; 21, the second movable contact; 22, B binding post; 100, the first electromagnetic switch; 200, the second electromagnetic switch; 300, housing; 400, storage battery; 500, actuating motor; EM, vehicle starter electromagnetic switch.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 is the internal mechanical structural representation of the vehicle starter electromagnetic switch that provides of the utility model one embodiment; The electrical connection schematic diagram of the vehicle starter electromagnetic switch that the part in Fig. 2 in dotted line frame provides for the utility model one embodiment.
Please with reference to Fig. 1 and Fig. 2, the vehicle starter electromagnetic switch that the utility model one embodiment provides provides a kind of vehicle starter electromagnetic switch EM, comprise housing 300, described housing 300 inside are provided with the first electromagnetic switch 100, the second electromagnetic switch 200, current-limiting resistance 20 and drive chip 11, described the first electromagnetic switch 100 is connected to storage battery 400 to the main circuit of actuating motor 500, controls the startup of actuating motor 500 by controlling the break-make of described main circuit; In addition, the first electromagnetic switch also enters and exits the engagement with flywheel ring gear for controlling the driven wheel of starter, the i.e. circuit from storage battery 400 to actuating motor 500 of main circuit herein, i.e. B-M loop in Fig. 2, starting current feeds actuating motor 500 through main circuit; After the switch-side of described current-limiting resistance 20 and described the second electromagnetic switch 200 is in parallel, be connected on described main circuit, the opening and closing of the switch-side of described the second electromagnetic switch 200 respectively the corresponding described current-limiting resistance 20 described main circuits of access and described current-limiting resistance 20 by short circuit; Described driving chip 11 is connected with the control side of described the second electromagnetic switch 200, to control the opening and closing of the switch-side of described the second electromagnetic switch 200.After ignition switch closure, the second electromagnetic switch 200 disconnects after can keeping the scheduled time under driving chip 11 is controlled, and like this, is equivalent at the starting initial stage, and current-limiting resistance 20 has accessed main circuit, therefore, can reduce starting current.Drive chip 11 can adopt conventional control chip, by work out corresponding program on driving chip, realize the above-mentioned functions that drives chip 11.
As shown in Figure 1, described the first electromagnetic switch 100 is axially arranged side by side along described housing 300 with described the second electromagnetic switch 200.Be arranged side by side the volume that is conducive to reduce electromagnetic switch itself, thereby further save installing space.
In the present embodiment, more preferably, described the first electromagnetic switch 100 comprises the first iron core 5 being fixedly installed on described housing 300, the first armature 1 being oppositely arranged with described the first iron core 5, the first coil windings 4 arranging around described the first iron core 5 and described the first armature 1, the first push rod 3 through described the first iron core, be fixedly installed on first movable contact 7 of described first push rod 3 one end, be fixedly installed on the first fixed contact 8 on described housing 300 and for driving the first returning device of described the first armature 1 and described the first movable contact 7 returns when described the first coil windings 4 power-off, described the first returning device comprises being resisted against to be stated between the first armature 1 and described the first iron core 5 for driving the first return spring 2 of described the first armature 1 return and being set on described the first push rod 3 for driving the first touch spring 6 of described the first movable contact 7 returns.Described the first movable contact 7 is one group of normally open contact with described the first fixed contact 8, described the first fixed contact 8 is connected on described main circuit, after the switch-side parallel connection of described current-limiting resistance 20 and described the second electromagnetic switch 200, connect with described the first fixed contact 8, described the first push rod 3 moves axially with described the first movable contact 7 and described the first fixed contact 8 of closure under the driving of described the first armature 1.The first electromagnetic switch compact conformation of above-mentioned form, takes up room little.
In a preferred embodiment, each parts particular location annexation of described the first electromagnet 100 is:
The first armature 1 of described the first electromagnetic switch 100 and housing 300 coaxial space coordinate, and by the first return spring 2, support.Described the first armature 1 outer end is connected with engine shift fork, and is sealed in starter housing inside.
Described the first coil windings 4 is wrapped on a tubular support, tubular support and housing 300 interference fit.Described the first iron core 5 and above-mentioned tubular internal stent coaxial cooperation, and by the baffle plate supporting and location at the first iron core 5 rear portions, this baffle plate is fixed on housing 300.
Described the first movable contact 7 is loop configuration, fixing by insulating material and the first push rod 3.
Described the first fixed contact 8 is loop configuration, by insulating material and described the first fixed contact 8 rear portion baffle plates, fixes.This baffle plate is fixed on housing 300, and this plate washer is positioned at the place ahead of described the second electromagnetic switch 200.After the first coil windings 4 energisings of the first electromagnet, the first armature 1 and the first iron core 5 attract each other, because the first iron core 5 is relatively to fix, so the first armature 1 axially moving to the first iron core 5 along housing, compress the first return spring 2 simultaneously, when the first armature 1 contacts with the first push rod 3, promoting the first push rod 3 moves, the first push rod 3 compresses the first touch spring 6 in moving process, and the first movable contact 7 that is finally fixed on first push rod one end contacts with the first fixed contact 8, described the first movable contact 7 and described the first fixed contact 8 closures, thereby realized the connection of described main circuit.
After the first coil windings 4 power-off of the first electromagnet, the first armature 1 and the first iron core 5 no longer attract each other, and the power acting on the first return spring 2 disappears, and the first return spring 2 drives the first armature 1 to get back to initial position when restoring; Meanwhile, the power acting on the first touch spring 6 disappears, and the first touch spring 6 drives the first push rod 3 to get back to initial position when restoring, and the first push rod 3 drives the first movable contact to get back to initial position, thereby has realized the disconnection of described main circuit.
In the present embodiment, more preferably, the control side of described the second electromagnetic switch 200 comprises the second iron core 19 being fixedly installed on described housing 300, the second armature 17 being oppositely arranged with described the second iron core 19, the second coil windings 9 arranging around described the second iron core 19 and described the second armature 17, pass the second push rod 18 that described the second iron core 19 and one end are fixedly connected with described the second armature 17, with the second movable contact 21 of described the second push rod 18 other end butts and for driving the second returning device of described the second armature 17 and described the second movable contact 21 returns when described the second coil windings 9 power-off, described the second returning device comprise be set on described the second push rod 18 for drive the second return spring 10 of described the second armature 17 returns and be connected to described housing 300 and described the second movable contact 21 between for driving the second touch spring 13 of described the second movable contact 21 returns, the switch-side of described the second electromagnetic switch comprises the second fixed contact 12 being fixedly installed on described housing 300, described the second movable contact 21 is one group of normally closed interlock with described the second fixed contact 12, and described the second push rod 18 can move axially with described the second movable contact 21 and described the second fixed contact 12 of separation under the driving of described the second armature 17.The second electromagnetic switch compact conformation of above-mentioned form, takes up room little.Herein, opening of the switch-side of the second electromagnetic switch represents the separated of the second movable contact 21 and the second fixed contact 12; The closure of closing expression the second movable contact 21 and the second fixed contact 12 of the switch-side of the second electromagnetic switch.
In a preferred embodiment, each parts particular location annexation of described the second electromagnet 200 is:
The second coil windings 9 of described the second electromagnetic switch 200 is wrapped on another tubular support, and this tubular support and housing 300 coordinate location.Slot milling between this tubular support and housing 300, so that the conducting medium that current-limiting resistance 20 is connected with the first fixed contact 8 to be set, this conducting medium can be copper sheet or wire.
Described the second armature 17 and above-mentioned tubular support coaxial space coordinate.
Described the second iron core 19 and above-mentioned tubular internal stent coaxial cooperation, and rear portion is by plastic cement support structure, drive chip 11 injection mouldings in this plastic cement structure, and this plastic cement structure supports by the resin cap that is positioned at electromagnetic switch rear portion, this resin cap is wrapped up by housing 300.Described the second movable contact 21 is pressed on the second fixed contact 12 by the second touch spring 13, and the second fixed contact 12 is fixing by insulating material and housing 300.
After the second coil windings 9 energisings of the second electromagnet, the second armature 17 and the second iron core 19 attract each other, because the second iron core 19 is relatively to fix, therefore the second armature 17 moves to the second iron core 19 along axial drive second push rod 18 of housing, compress the second return spring 10 and the second touch spring 13 simultaneously, described the second movable contact 21 is separated with described the second fixed contact 12, thereby current-limiting resistance 20 has been accessed to main circuit.
After certain hour, by driving chip controls the second coil windings 9 power-off, the second armature 17 and the second iron core 19 no longer attract each other, act on the second return spring 10 and and the second touch spring 13 on power disappear, the second return spring 2 drives the second armature 17 to get back to initial position when restoring; Meanwhile, the power acting on the second touch spring 13 disappears, and the second touch spring 13 drives the second movable contact 21 to get back to initial position when restoring, thereby by current-limiting resistance short circuit.
In the present embodiment, preferably, described driving chip 11 is arranged on the second iron core 19, and the electrical connection of the two ends of described driving chip 11 is at the two ends of described the second coil windings 9.Preferably, drive chip 11 injection mouldings in a plastic cement structure, this plastic cement structure supports described the second iron core 19 simultaneously.Drive chip to be set directly on the second iron core, easy for installation, compact conformation.
In the present embodiment, preferably, described current-limiting resistance 21 is arranged between described driving chip 11 and described the second fixed contact 12 and is fixedly installed on described housing 300, and the electrical connection of the two ends of described current-limiting resistance 21 is at the two ends of described the second fixed contact 12.Preferably, it is in parallel with the copper billet realization between described the second fixed contact 12 that described current-limiting resistance 21 is arranged on described current-limiting resistance 21 by one, and copper billet, current-limiting resistance 21 and the second fixed contact 12 are fixed by ultrasonic bonding each other.Owing to driving between chip and the second fixed contact, must be formed with a space, so current-limiting resistance is arranged between described driving chip and described the second fixed contact, current-limiting resistance can not take other space, characteristics of compact layout again.
In the present embodiment, preferably, described the first movable contact 7 and described the first fixed contact 8 are between described the first iron core 5 and described the second armature 17.Define thus the relative position relation of the first electromagnetic switch and the second electromagnetic switch, and make the first armature of the first electromagnetic switch and the second armature moving direction of the second electromagnetic switch consistent, therefore, the characteristics of compact layout of whole vehicle starter electromagnetic switch, axial length is under control, and can obtain the vehicle starter electromagnetic switch of small volume.
In addition, for the ease of being connected of electromagnetic switch and other parts of starting system, on described housing 300, be fixedly installed B binding post 22, S binding post 14 and M binding post 16; Described M binding post 16 is positioned under described the first fixed contact 8 and with the output of described the first fixed contact 8 and is electrically connected, in vehicle start system, M binding post and actuating motor 500 electrical connections, to provide electric power to actuating motor 500, in order to keep the sealing of M binding post 16 and housing 300, between M binding post 16 and housing 300, be also provided with a rubber ring 15; Described S binding post 14 be positioned at the outside of described the second fixed contact 12 and with the input of described the second coil windings 9, the input of the input of described driving chip 11 and described the first coil windings 4 electrical connection, in vehicle start system, S binding post 14 and ignition switch IG electrical connection; Described B binding post 22 is positioned at the outside of described current-limiting resistance 20 and is electrically connected with the input of described the second fixed contact 12 and the input of described current-limiting resistance 20; The input electrical connection of the output of described the second fixed contact 12 and described the first fixed contact 8, in vehicle start system, the electrical connection of the positive pole of B binding post and storage battery 400.
In the present embodiment, preferably, described M binding post 16 is fixing by electro-insulating rubber circle 15 and housing 300, and M binding post 16 can be sheet or cylindric.In the present embodiment, by above-mentioned resin cap fixedly S binding post 14 and B binding post 22.Described B binding post 22 and described the second fixed contact 12 and above-mentioned copper billet are close to and are fixing by insulating material and housing 300.And described B binding post 22 is fixed by ultrasonic bonding and above-mentioned copper billet.Described S binding post 14 and B binding post 22 separate by insulating material.
The vehicle starter electromagnetic switch that the utility model provides, by the first electromagnetic switch, the second electromagnetic switch, current-limiting resistance and drive integrated chip in same housing, can directly replace conventional starter relay, and do not need to increase other parts, do not need to change harness system or change this body structure of starter yet, when realizing inhibition great start-up current, reducing storage battery pressure drop, also there is the advantages such as volume is little, lightweight, thereby can save the inside installing space of vehicle, be conducive to the layout of other parts on vehicle.
In addition, as shown in Figure 2, the utility model also provides a kind of described vehicle starter, and described vehicle starter has comprised above-mentioned vehicle starter electromagnetic switch.
In addition, the utility model also provides a kind of vehicle start system, and described vehicle start system comprises above-mentioned vehicle starter electromagnetic switch EM.Particularly, as shown in Figure 2, described vehicle start system comprises storage battery 400, ignition switch IG, above-mentioned vehicle starter electromagnetic switch EM, actuating motor 500 and not shown transmission mechanism; The positive pole of storage battery 400 is electrically connected respectively the B binding post of vehicle starter electromagnetic switch EM and the input of ignition switch IG, and the output of ignition switch IG is electrically connected to the S binding post of vehicle starter electromagnetic switch EM; The M binding post of vehicle starter electromagnetic switch EM is electrically connected to actuating motor 500.Transmission mechanism generally includes and is connected to the shift fork of first push rod 3 other ends and the one-way clutch being driven by shift fork, the driven wheel that can realize starter by shift fork and one-way clutch and actuating motor output shaft synchronize and with the engagement of flywheel ring gear.
The course of work of the vehicle start system that the utility model one embodiment provides is as follows:
Driver presses start button or rotation firing key, trigger an enabling signal, make the closed energising of ignition switch IG, drive chip 11, the second coil windings 9 energisings, after the second coil windings 9 energisings of the second electromagnet, the second armature 17 and the second iron core 19 attract each other, because the second iron core 19 is relatively to fix, therefore the second armature 17 moves to the second iron core 19 along axial drive second push rod 18 of housing, compress the second return spring 10 and the second touch spring 13 simultaneously, described the second movable contact 21 is separated with described the second fixed contact 12, thereby current-limiting resistance 20 has been accessed to B-M loop (main circuit).Simultaneously, the first coil windings 4 energisings, the first armature 1 and the first iron core 5 attract each other, because the first iron core 5 is relatively to fix, so the first armature 1 axially moving to the first iron core 5 along housing, compress the first return spring 2 simultaneously, the shift fork that is connected to first push rod 3 other ends drives one-way clutch to make the driven wheel of starter to the direction motion of flywheel ring gear, when the first armature 1 contacts with the first push rod 3, promoting the first push rod 3 moves, the first push rod 3 compresses the first touch spring 6 in moving process, and the first movable contact 7 that is finally fixed on first push rod one end contacts with the first fixed contact 8, described the first movable contact 7 and described the first fixed contact 8 closures, thereby realized the connection in B-M loop, and when described the first movable contact 7 and described the first fixed contact 8 closure, the driven wheel of starter and flywheel ring gear be engagement just also.
After actuating motor drags engine certain hour (as 100ms, according to driving chip 20, set), drive chip 20 to control the second coil windings 9 power-off, the second armature 17 and the second iron core 19 no longer attract each other, act on the second return spring 10 and and the second touch spring 13 on power disappear, the second return spring 2 drives the second armature 17 to get back to initial position when restoring; Meanwhile, the power acting on the second touch spring 13 disappears, and the second touch spring 13 drives the second movable contact 21 to get back to initial position when restoring, thereby by current-limiting resistance 20 short circuits.Now, actuating motor 500 is worked under full voltage, entirely exports ato unit.
After engine start completes, ignition switch IG disconnects, the first coil windings 4 power-off of the first electromagnet, and the first armature 1 and the first iron core 5 no longer attract each other, the power acting on the first return spring 2 disappears, and the first return spring 2 drives the first armature 1 to get back to initial position when restoring; Meanwhile, the power acting on the first touch spring 6 disappears, and the first touch spring 6 drives the first push rod 3 to get back to initial position when restoring, and the first push rod 3 drives the first movable contact to get back to initial position, thereby has realized the disconnection of described main circuit.
In starting process, the variation of ignition switch on-state, B-M loop on-state and starter loop current (being starting current) as shown in Figure 3.
Fig. 4 and Fig. 5 are (same accumulator electric-quantity, same ambient temperature, same starter, the cold machine of engine normal temperature) under same test condition, in starting system, access start loop electric current and the accumulator voltage curve under two kinds of situations of vehicle launch electromagnetic switch that conventional electromagnetic switch and the utility model provide, tested, in test, setting current-limiting resistance resistance is 10m Ω, be 120ms the turn-on time that drives chip to set current-limiting resistance, the curve that is positioned at top in Fig. 4 and Fig. 5 is accumulator voltage curve, and what be positioned at below is start loop current curve.The curve of comparison diagram 4 and Fig. 5, can find out, its start loop electric current of vehicle launch electromagnetic switch vehicle start system that access the utility model provides is 575A, and the start loop electric current with respect to accessing the vehicle start system 1033A of conventional electromagnetic switch, has had significant reduction; And its accumulator voltage minimum value of vehicle launch electromagnetic switch vehicle start system that access the utility model provides is 10.37V, the accumulator voltage minimum value with respect to accessing the vehicle start system 8.69V of conventional electromagnetic switch, has had significant raising.As can be seen here, the vehicle launch electromagnetic switch that the utility model provides is suppressing to have good effect in great start-up current, the pressure drop of reduction storage battery.
The vehicle start system that the utility model provides, because its vehicle starter electromagnetic switch is by the first electromagnetic switch, the second electromagnetic switch, current-limiting resistance and drive integrated chip in same housing, therefore, this vehicle starter electromagnetic switch is when realizing inhibition great start-up current, reducing storage battery pressure drop, also there is the advantages such as volume is little, lightweight, correspondingly, the vehicle start system consisting of it also possesses the advantages such as volume is little, lightweight, thereby can save the inside installing space of vehicle, be conducive to the layout of other parts on vehicle.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.

Claims (10)

1. a vehicle starter electromagnetic switch, comprises housing, it is characterized in that, described enclosure interior is provided with the first electromagnetic switch, the second electromagnetic switch, current-limiting resistance and drives chip, wherein,
Described the first electromagnetic switch is connected to storage battery to the main circuit of actuating motor, controls the startup of actuating motor by controlling the break-make of described main circuit;
After the switch-side of described current-limiting resistance and described the second electromagnetic switch is in parallel, be connected on described main circuit, the opening and closing of the switch-side of described the second electromagnetic switch respectively corresponding described current-limiting resistance access described main circuit and described current-limiting resistance by short circuit;
Described driving chip is connected with the control side of described the second electromagnetic switch, to control the opening and closing of the switch-side of described the second electromagnetic switch.
2. vehicle starter electromagnetic switch according to claim 1, is characterized in that, described the first electromagnetic switch and described the second electromagnetic switch are along described housing shaft to being arranged side by side.
3. vehicle starter electromagnetic switch according to claim 1, it is characterized in that, described the first electromagnetic switch comprises the first iron core being fixedly installed on described housing, the first armature being oppositely arranged with described the first iron core, the first coil windings around described the first iron core and described the first armature setting, the first push rod through described the first iron core, be fixedly installed on first movable contact of described first push rod one end, be fixedly installed on the first fixed contact on described housing and for driving the first returning device of described the first armature and described the first movable contact return when described the first coil windings power-off, described the first movable contact and described the first fixed contact are one group of normally open contact, described the first fixed contact is connected on described main circuit, after the switch-side parallel connection of described current-limiting resistance and described the second electromagnetic switch, connect with described the first fixed contact, described the first push rod moves axially with described the first movable contact of closure and described the first fixed contact under the driving of described the first armature.
4. according to the vehicle starter electromagnetic switch described in claims 1 to 3 any one, it is characterized in that,
The control side of described the second electromagnetic switch comprises the second iron core being fixedly installed on described housing, the second armature being oppositely arranged with described the second iron core, the second coil windings around described the second iron core and described the second armature setting, pass the second push rod that described the second iron core and one end are fixedly connected with described the second armature, with the second movable contact of described the second push rod other end butt and for driving the second returning device of described the second armature and described the second movable contact return when described the second coil windings power-off,
The switch-side of described the second electromagnetic switch comprises the second fixed contact being fixedly installed on described housing, described the second movable contact and described the second fixed contact are one group of normally closed interlock, and described the second push rod moves axially with described the second movable contact of separation and described the second fixed contact under the driving of described the second armature.
5. vehicle starter electromagnetic switch according to claim 4, is characterized in that, described driving chip is arranged on the second iron core, and the electrical connection of the two ends of described driving chip is at the two ends of described the second coil windings.
6. vehicle starter electromagnetic switch according to claim 5, it is characterized in that, described current-limiting resistance is arranged between described driving chip and described the second fixed contact and is fixedly installed on described housing, and the electrical connection of the two ends of described current-limiting resistance is at the two ends of described the second fixed contact.
7. vehicle starter electromagnetic switch according to claim 4, is characterized in that, described the first movable contact and described the first fixed contact are between described the first iron core and described the second armature.
8. vehicle starter electromagnetic switch according to claim 4, is characterized in that, is fixedly installed B binding post, S binding post and M binding post on described housing;
Described M binding post is positioned under described the first fixed contact and with the output of described the first fixed contact and is electrically connected;
Described S binding post is positioned at the outside of described the second fixed contact and is electrically connected with the input of the input of described the second coil windings, the input of described driving chip and described the first coil windings;
Described B binding post is positioned at the outside of described current-limiting resistance and is electrically connected with the input of described the second fixed contact and the input of described current-limiting resistance; The input electrical connection of the output of described the second fixed contact and described the first fixed contact.
9. a vehicle starter, is characterized in that, described vehicle starter comprises the vehicle starter electromagnetic switch described in claim 1 to 8 any one.
10. a vehicle start system, is characterized in that, described vehicle start system comprises the vehicle starter electromagnetic switch described in claim 1 to 8 any one.
CN201320338801.XU 2013-06-13 2013-06-13 A vehicle starter electromagnetic switch, a vehicle starter, and a vehicle starting system Expired - Lifetime CN203415500U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105604759A (en) * 2016-03-01 2016-05-25 芜湖杰诺瑞汽车电器***有限公司 Starter assembly of motor vehicle
CN106089537A (en) * 2016-07-08 2016-11-09 北京长城华冠汽车科技股份有限公司 A kind of accumulator selection method and device
CN111025017A (en) * 2019-12-19 2020-04-17 华南理工大学 Ultrasonic guided wave-based plum blossom contact state evaluation method
WO2022228346A1 (en) * 2021-04-27 2022-11-03 比亚迪股份有限公司 Relay

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105604759A (en) * 2016-03-01 2016-05-25 芜湖杰诺瑞汽车电器***有限公司 Starter assembly of motor vehicle
CN106089537A (en) * 2016-07-08 2016-11-09 北京长城华冠汽车科技股份有限公司 A kind of accumulator selection method and device
CN106089537B (en) * 2016-07-08 2018-02-27 北京长城华冠汽车科技股份有限公司 A kind of battery selection method and device
CN111025017A (en) * 2019-12-19 2020-04-17 华南理工大学 Ultrasonic guided wave-based plum blossom contact state evaluation method
CN111025017B (en) * 2019-12-19 2021-09-21 华南理工大学 Ultrasonic guided wave-based plum blossom contact state evaluation method
WO2022228346A1 (en) * 2021-04-27 2022-11-03 比亚迪股份有限公司 Relay

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