CN102418640A - Starting motor with magnetic switch - Google Patents
Starting motor with magnetic switch Download PDFInfo
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- CN102418640A CN102418640A CN2011104376405A CN201110437640A CN102418640A CN 102418640 A CN102418640 A CN 102418640A CN 2011104376405 A CN2011104376405 A CN 2011104376405A CN 201110437640 A CN201110437640 A CN 201110437640A CN 102418640 A CN102418640 A CN 102418640A
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- magnetic switch
- starting motor
- coil
- motor
- starter
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Abstract
The invention relates to a starting motor with a magnetic switch. In the magnetic switch, a sucking coil and a holding coil are made of aluminum wires or aluminum-clad wires, and the thickness of a yoke of the magnetic switch is 3 to 4mm. Compared with the conventional starting motor, the starting motor has the advantages that: the volume of the magnetic switch of the motor is only 63 percent of the original volume, and the weight of the coils is reduced by 80 percent; and the using amount of a precious material is greatly reduced, and cost and resources are saved.
Description
Technical field
The present invention relates to the vehicle of a kind of lift-launch on passenger car, truck etc. and use starting motor, particularly improve the magnetic switch that starting motor is used.
Background technique
The requirement of miniaturization has been proposed with starter for automobile in recent years.That is to say that requiring provides a kind of volume vehicle little and that output power is high to use starter motor with reasonable prices.
Usually, vehicle has representative construction as shown in Figure 1 with the big commercial car actuating appliance of starter, especially output power.
Starter mainly comprises motor 3, overrunning clutch 2 and 1 three parts of magnetic switch, also comprises relevant link: speed change lever, small gear.Starter is installed on engine body, through the operation of starter switch, and the small gear of starter and ring gear (not drawing among the figure) engagement that is arranged at the flywheel periphery, the strength by motor 3 makes crankshaft rotating, thus the starting engine.The engagement of small gear and ring gear is the electromagnetic force through magnetic switch 1, small gear is moved on live axle carry out.
The working principle of motor and overrunning clutch and structure are known technology, are not described in detail in this.
Magnetic switch 1 is as shown in Figure 2, is made up of sucking coil 11, hold-in winding 10, magnetic core 13, Returnning spring 16, plunger 12 and main contact 14, main terminal 15 etc., and plunger 12 is connected with speed change lever 5 one ends through its movable bolt 17.
As shown in Figure 3, speed change lever 5 one ends connect plunger 12, and the other end connects overrunning clutch 2, and are fixed on the starter with fulcrum 18.When magnetic switch 1 action, plunger 12 is attracted to right-hand, through speed change lever 5, overrunning clutch 2 is released.
Shown in Figure 4 is starter circuit, comprises in the circuit that starter switch 19 and field coil 20 close behind the starter switch 19, flow to the field coil 20 and the armature coil of motor through sucking coil 11, also flows to hold-in winding 10 simultaneously.As a result, armature slowly begins rotation, and plunger 12 is attracted under the common magnetic effect of sucking coil 11 and hold-in winding 12, makes speed change lever 5 swings, releases small gear 6 and ring gear engagement.
When plunger was attracted, main contact 14 can be closed, and the big electric current that flows out from battery is to field coil and armature coil diffluence, and starter begins powerful the rotation.This moment sucking coil 11 two ends by short circuit, so the magnetic force of sucking coil disappears, plunger is only kept by the attraction force of hold-in winding.
Work as engine, after starter switch cuts out, flow to the current opposite in direction of sucking coil and hold-in winding, two magnetic force that coil produced are cancelled each other, and attraction force becomes zero, and plunger 12 sets back under the active force of Returnning spring 16.In addition, because moving of plunger 12 makes overrunning clutch 2 be pulled via speed change lever 5, the engagement releasing of small gear 6 and ring gear.
The electric current that flows to this motor must produce the torque that is enough to start engine, and current value is normally determined by the resistance value of magnetic switch sucking coil singlely.Therefore sucking coil has been selected appropriate current density, and has been determined the sectional area of coil in order under this electric current, to suppress the rising of temperature.Therefore past for cooperating required resistance value, just need to increase the length of coil owing to use copper cash to make the sucking coil 11 of magnetic switch 1.Therefore, the size of magnetic switch depends on the space of the required coil that is used to reel.And on the other hand, be zero owing to need make the attraction force of plunger when starter switch cuts out, so the number of windings of hold-in winding 10 must be identical with the number of windings of sucking coil 11.Because unique factor of motor torque when the resistance value of hold-in winding is not the regulation starting; Therefore can more freely design; But because the electric current of starter switch when closing causes heating or fusing, therefore to have selected appropriate current density in order preventing, to have determined the sectional area of coil.
Fig. 5 is the size schematic representation of existing technology magnetic switch yoke, and the thin thickness of magnetic switch yoke very easily causes magnetic saturation.Below become a bottleneck that alleviates the starter volume and weight, the electric current of its reason when being to start is by the single decision of resistance value of sucking coil.
Summary of the invention
The present invention provides a kind of vehicle to use starting motor for the defective that solves above existence, makes it under the prerequisite of guaranteed performance, alleviate the weight of himself greatly.
The present invention solves the problems of the technologies described above the technological scheme of being taked:
A kind of starting motor with magnetic switch is characterized in that: in described magnetic switch, sucking coil and hold-in winding are processed by aluminum steel or aluminium envelope curve, and the thickness of magnetic switch yoke is 3～4mm.
In the magnetic switch of starting motor, sucking coil and hold-in winding are processed aluminum steel, reduce the number of windings through using aluminum steel, reduce in order to prevent attraction force, increase the thickness of magnetic switch yoke, reduce magnetic saturation.Though the number of windings is few like this, do not reduce attraction force.
Compare with existing starting motor, it is original 63% that the magnetic switch volume of motor according to the invention is merely, and coil weight reduces 80%.Reduce the precious materials use amount significantly, practice thrift cost and resource.
Description of drawings
Fig. 1 is the tectonic maps of existing technology vehicle with starting motor (starter).
Fig. 2 is the sectional view of existing technology magnetic switch.
Fig. 3 is the schematic diagram of movements of existing technology magnetic switch.
Fig. 4 is the circuit of existing technology starting arrangement.
Fig. 5 is the size schematic representation of existing technology magnetic switch yoke.
Fig. 6 is the size schematic representation of magnetic switch yoke in the utility model.
Specific embodiments
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
The present invention changes the coil material of magnetic switch into aluminum steel or aluminium envelope curve, just can significantly shorten stitch length thus.In the magnetic switch, common copper cash specific resistance is 1.58 times of aluminum steel specific resistance, if the line footpath is identical, when using aluminum steel to make sucking coil, length approximately is 63% of copper cash, and weight can alleviate about 80%.
Because stitch length shortens, the number of windings reduces, and the attraction force of plunger also can weaken, and the thickness with the magnetic switch yoke is made as 3～4mm for this reason, is preferably 3.5mm, and the magnetic saturation of yoke portion is reduced, though the number of windings is few, does not reduce attraction force.Fig. 6 is the size schematic representation of magnetic switch yoke among the present invention.
Compare with existing motor, the magnetic switch sucking coil of motor according to the invention and the volume of hold-in winding are merely original 63%.
Following table is the comparison with the employed electric wire quality of magnetic switch of existing motor and Φ according to the invention 83 motor
Can know that from table in the existing motor, sucking coil and hold-in winding add up to 0.502kg, and under the same size, when the present invention used aluminum steel, weight was merely 0.099kg, alleviated about 80%.
Claims (2)
1. starting motor with magnetic switch, it is characterized in that: in described magnetic switch, sucking coil and hold-in winding are processed by aluminum steel or aluminium envelope curve, and the thickness of magnetic switch yoke is 3～4mm.
2. the starting motor with magnetic switch as claimed in claim 1 is characterized in that: the thickness of described magnetic switch yoke is 3.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104376405A CN102418640A (en) | 2011-12-23 | 2011-12-23 | Starting motor with magnetic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104376405A CN102418640A (en) | 2011-12-23 | 2011-12-23 | Starting motor with magnetic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102418640A true CN102418640A (en) | 2012-04-18 |
Family
ID=45943227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104376405A Pending CN102418640A (en) | 2011-12-23 | 2011-12-23 | Starting motor with magnetic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102418640A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144453A (en) * | 2006-09-12 | 2008-03-19 | 刘本成 | Composite electromagnetic material engine |
| CN201213112Y (en) * | 2008-05-21 | 2009-03-25 | 庄道芳 | Improved electromagnetic switch |
| JP2009093973A (en) * | 2007-10-11 | 2009-04-30 | Denso Corp | Electromagnetic switch for starter |
| CN201256129Y (en) * | 2008-07-20 | 2009-06-10 | 锦州汉拿电机有限公司 | Connection construction for keeping coil grounding terminal in electromagnetic switch |
| JP2009224116A (en) * | 2008-03-14 | 2009-10-01 | Denso Corp | Electromagnetic switch |
-
2011
- 2011-12-23 CN CN2011104376405A patent/CN102418640A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144453A (en) * | 2006-09-12 | 2008-03-19 | 刘本成 | Composite electromagnetic material engine |
| JP2009093973A (en) * | 2007-10-11 | 2009-04-30 | Denso Corp | Electromagnetic switch for starter |
| JP2009224116A (en) * | 2008-03-14 | 2009-10-01 | Denso Corp | Electromagnetic switch |
| CN201213112Y (en) * | 2008-05-21 | 2009-03-25 | 庄道芳 | Improved electromagnetic switch |
| CN201256129Y (en) * | 2008-07-20 | 2009-06-10 | 锦州汉拿电机有限公司 | Connection construction for keeping coil grounding terminal in electromagnetic switch |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120418 |