CN103061944B - Suppress the method for start-stop motor peak value starting current, relay and start-stop motor - Google Patents
Suppress the method for start-stop motor peak value starting current, relay and start-stop motor Download PDFInfo
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- CN103061944B CN103061944B CN201210590649.4A CN201210590649A CN103061944B CN 103061944 B CN103061944 B CN 103061944B CN 201210590649 A CN201210590649 A CN 201210590649A CN 103061944 B CN103061944 B CN 103061944B
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Abstract
The invention discloses the method suppressing start-stop motor peak value starting current, comprise: (1) is comprising on storage battery, ignition switch, the contact of magnetic switch and the start-stop motor main circuit of start-stop motor, set up one with the relay of current-limiting resistance, current-limiting resistance is in parallel with two tenminal blocks of relay, be then linked between described ignition switch and magnetic switch contact; (2) battery feed is respectively the coil of relay, the coil power supply of magnetic switch.The invention also discloses the relay realizing above-mentioned suppression peak value starting current method and the start-stop motor implementing above-mentioned suppression start-stop motor peak value starting current method.Cut when the present invention lights a fire in start-stop electric motor loop or cut out current-limiting resistance, to realize suppressing excessive starting current instantaneously in the starting of start-stop motor, reaching the object extending start-stop electrical machinery life.
Description
Technical field
The present invention relates to the start-stop motor of automobile, particularly suppress the method for start-stop motor peak value starting current, the invention still further relates to the relay realizing said method and the start-stop motor implementing said method.
Background technique
Start-stop motor, also claims start and stop motor, for the motor of start-uping a car.General automobile uses actuating motor (or claiming starter motor) at present, and start-stop motor is compared to general actuating motor, and the life-span of start-stop motor is longer, and power is larger.Start-stop motor comprises motor, magnetic switch, and the output shaft of motor is connected with starting gear.After the ignition switch of automobile is connected, the storage battery of automobile is powered respectively to the coil of magnetic switch and motor, and the contact of magnetic switch is serially connected with on the major loop of motor, for control motor, dead electricity.When ignition switch is connected, the coil of the plant-grid connection magnetic switch of storage battery, the coil of magnetic switch obtain electric after, the contact of adhesive magnetic switch makes major loop connect on the one hand, motor obtains electric operation, the suction-combining force promotion starting gear of magnetic switch engages with the gear ring of motor on the other hand, thus drives engine revolution.After motor normal starting, ignition switch resets, magnetic switch dead electricity, and magnetic switch controls motor and shuts down and make starting gear depart from gear ring.During start-stop electric motor starting, the electric current being flowed through the major loop of motor by storage battery is start-stop motor starting currents, and be called for short starting current, the plotted curve of this starting current as shown in Figure 7.
The actuating motor power of existing general automobile is still less, cannot support the quick start-stop of motor car engine.But, if the power increasing start-stop motor supports quick start-stop, again by transient starting electric current when increasing start-stop electric motor starting further, starting current has larger transient peak, cause the lost of life of start-stop motor, also can affect other electronic equipment (as ignition switch) in automobile simultaneously; If the number of starts reducing start-stop motor carrys out life-saving, will cause again motor be often in idling mode (as automobile run into traffic light time), thus waste gasoline resource, also add exhaust emissions and noise, be unfavorable for environmental protection and energy saving.
Summary of the invention
The present invention's first object is to provide the method suppressing start-stop motor peak value starting current, cut when lighting a fire in start-stop electric motor loop or cut out current-limiting resistance, to realize suppressing excessive starting current instantaneously in the starting of start-stop motor, reach the object extending start-stop electrical machinery life.
Second object of the present invention is to provide a kind of relay realizing above-mentioned suppression peak value starting current method.
3rd object of the present invention is to provide a kind of start-stop motor implementing above-mentioned suppression start-stop motor peak value starting current method, in start-stop electric motor loop, access described relay, to suppress peak value starting current not affecting under the prerequisite that start-stop motor normally works.
For solving the problems of the technologies described above, first object of the present invention is achieved through the following technical solutions: a kind of method suppressing start-stop motor peak value starting current, comprise: (1) is comprising on storage battery, ignition switch, the contact of magnetic switch and the start-stop motor main circuit of start-stop motor, set up one with the relay of current-limiting resistance, current-limiting resistance is in parallel with two tenminal blocks of relay, be then linked between described ignition switch and magnetic switch contact;
(2) battery feed is respectively the coil of relay, the coil power supply of magnetic switch.
Working principle of the present invention is when the ignition switch of start-stop motor is connected, and utilize current-limiting resistance to be suppressed within the scope of setting value i value by the transient peak of starting current, then relay resets, and cuts out current-limiting resistance, start-stop motor main circuit is normally worked.Described setting value i value is the highest limit value of starting current, generally can adopt the safety electric flow valuve not affecting start-stop electrical machinery life, and the power of start-stop motor is different, and setting value i value may change to some extent.
The present invention can do following improvement: due to prior art ignition switch connect time, the starting current of start-stop motor rises to i value first from 0 needs the regular hour, and this time is called up-flow time t
3, so after the present invention accesses current-limiting resistance and relay, control chip can be adopted to control current-limiting resistance at once incision or time delay incision and to cut out the mode of start-stop motor main circuit on time, realize the object suppressing the above starting current of i value, the problem of the lost of life that the heavy current impact contributing to improving frequent start-stop causes: the present invention can access a control chip at two tenminal block places of relay, this control chip have time delay and continue one section hold time after connect, the function disconnected, leading to by control chip control relay, disconnected, or the endurance, thus control horse back or the time delay incision of current-limiting resistance and regularly cut out.
The present invention can also do following improvement further: adopt normal closing type relay, to improve the reliability suppressing peak value starting current, when adopting normal closing type relay, control chip is control relay by the following method:
(1) control chip is by establishing the beginning by cable, makes the control end delay time t of control chip
athe wire loop of the described relay of rear connection, even if relay time delay disconnects, thus incision current-limiting resistance;
(2) control chip is by establishing the beginning by cable, makes the control end of control chip through the t that holds time
bafter, disconnect the wire loop of described relay, even if relay is obtaining the electric t that holds time
brear recovery closes on-state, thus cuts out current-limiting resistance.
In order to accurately control the incision of current-limiting resistance and cut out, the present invention can also do following improvement with regard to the delay time of control chip with holding time:
When control chip arranges delay time t
aduring for 0ms, be and cut current-limiting resistance at once; Or,
Work as t
1>t
2time, t
a≤ t
1-t
2+ t
3(A),
Work as t
1<t
2time, t
a≤ t
1+ t
3(B),
In formula (A), (B), in control chip, setting needs the starting current suppressing i value above, t
3for when start-stop motor does not access described relay, starting current rises to the i value up-flow time used first from 0; t
1for the coil of magnetic switch is by obtaining the electric pickup time used to the contact of closed electromagnetic switch; t
2for the coil of described relay is separated disengaging time used completely by obtaining electric extremely dynamic and static contact;
t
b=t
1+T－t
4（C），
In formula (C), T be starting current by 0 to dropping to the i value time used first; t
4for the coil of described relay engages engaging time used completely by dead electricity to dynamic and static contact.
Second object of the present invention is achieved through the following technical solutions: a kind of relay realizing the method for above-mentioned suppression start-stop motor peak value starting current, comprise housing and be installed on the winding in housing, armature, moving contact, fixed contact, spring, housing is provided with two tenminal blocks on the major loop for being serially connected in motor, wherein, winding is positioned at the bottom of housing, armature passes to being positioned at the dynamic of housing upper from winding axis, near fixed contact, the tenminal block of two columns is respectively in the outer side of fixed contact, and be electrically connected with fixed contact, moving contact is fitted fixed contact under the action of the spring, armature is then pressed to below by spring, described armature just meeting to move and moving contact top is disconnected two tenminal blocks from fixed contact after winding energising, it is characterized in that: in housing, set up a current-limiting resistance, described current-limiting resistance is positioned at the below of two tenminal blocks, its two ends are electrically connected with two tenminal blocks respectively, so that dynamic, two tenminal blocks are connected by current-limiting resistance when fixed contact is separated.
On the basis of the above, the present invention can do following improvement: in above-mentioned relay, set up a control chip, and described control chip has the control end for controlled winding current"on"time, and this control end serial connection is in the wire loop of winding; In set time, the wire loop of winding is switched on or switched off by the control end of control chip, current-limiting resistance is connected to make dynamic and static contact be separated, or dynamic and static contact is engaged and short circuit current-limiting resistance, to suppress the peak value starting current of start-stop motor by sealing in current-limiting resistance on the major loop of motor.
Armature of the present invention is formed with the push rod with bar head and shaft by moving iron core, and described push rod is in " ⊥ " shape, and bar head is connected with dynamic iron core, described housing is made up of enclosure body and upper cover, described winding and armature pass through a support installing in enclosure body, the axis place of described support has guide through hole, described shaft passes from guide through hole, and tenminal block is passed by upper cover and be fixed on upper cover end face, fixed contact is arranged on by tenminal block in upper cover, moving contact is enclosed by fixed contact and tenminal block and upper cover to be drawn together and in spacing space between fixed contact and upper cover end face, when described upper cover and enclosure body are integrally bonded, described dynamic, fixed contact and tenminal block are all positioned at above described support, and form the first certain gap between support, described current-limiting resistance and control chip are installed in this first gap.
Spring described in invention relay includes armature spring, moving contact spring two springs, and armature spring one end and bar head offset, and the other end and support offset, and when not being energized, armature is pressed to below for relay; Described fixed contact comprises two static touching plates be connected with two tenminal blocks respectively, and two static touching plates are separated by formation second gap; Moving contact spring one end and upper cover offset, and the other end is connected with moving contact, make described moving contact be fitted on two static touching plates to connect two tenminal blocks for relay when not being energized; The shaft of described push rod through after guide through hole just to the second gap fixed contact, after described winding energising, adhesive is moved iron core and is driven push rod overcome above-mentioned two spring forces and move up, and jack-up moving contact, makes dynamic and static contact be separated.
Dynamic and static contact of the present invention all adopts tellurium copper material to make, to increase the service life.
Current-limiting resistance of the present invention is that specific resistance is 0.8 × 10
-6Ω m ~ 2.0 × 10
-6between Ω m, the fusing point alloy material that is greater than 1000 DEG C, be beneficial to ensure that resistance suppresses the reliability of electric current.
The present invention also can adopt relay open in usual, only needs the armature spring of relay to change into armature is pressed to moving contact, meanwhile, and the time setting accommodation of the control relay in control chip.
3rd object of the present invention is achieved through the following technical solutions:
A kind of start-stop motor implementing above-mentioned suppression start-stop motor peak value starting current method, the power input comprising described relay, motor, magnetic switch and inputted by outside storage battery power supply, it is characterized in that: described power input one tunnel is connected to motor successively after the normally opened contact of two of described relay normally closed tenminal blocks, magnetic switch, form the major loop being used for feeding electric motors start and stop;
Described power input has the coil that the second tunnel connects relay, formed be used for the moving contact of control relay, relay coil control loop that fixed contact engages or is separated, wherein, being switched on or switched off by the coil of the control chip control relay of relay;
Described power input has the coil that the 3rd tunnel connects magnetic switch, the solenoid winding control loop forming the make contact for controlling magnetic switch or open;
By described control chip be switched on or switched off in set time relay wire loop (i.e. the wire loop of winding), suppress peak value starting current to seal in current-limiting resistance on the major loop of motor.
Compared with prior art, the technology of the present invention has following beneficial effect:
1) current-limiting resistance that the present invention seals in start-stop motor main circuit can reduce start-stop electric motor starting immediate current greatly, alleviates storage battery load and the impact to battery;
2) the present invention adopts control chip to realize cutting current-limiting resistance on the time of setting further, and resistance is cut out after set time, the incision of accurate control current-limiting resistance, mute time, not only can improve start-stop motor and ignition switch life-span further, reduce starting current to the impact of other electronic equipment of automobile; And, the problem of the lost of life that the heavy current impact also solving frequent start-stop causes, start-stop motor can control to start or stop as required, is conducive to reducing exhaust emissions and noise, is also beneficial to environmental protection and energy saving;
3) relay construction implementing the inventive method is simple, reliable operation, current-limiting resistance is directly connected between two tenminal blocks, normally-closed contact (normally closed tenminal block) is formed with dynamic and static contact, ensure that the reliability of incision current-limiting resistance, to ensure the peak value starting current suppressing start-stop electric motor starting moment;
4) invention relay directly have current-limiting resistance incision, cut out function, conveniently install and use, due to can big current be suppressed, therefore, be conducive to starter motor and improve power within the specific limits, for supporting the quick start-stop of motor car engine;
5) coil of invention relay, the coil of magnetic switch and control chip all simultaneously electric, the relay that control chip then can obtain according to concrete, the joint of magnetic switch contact, disengaging time carry out the adjustment of time setting, realize connection and the power-off time of accurate control relay coil, to ensure armature precise movement, back down or the moving contact that resets, thus seal in or disconnect current-limiting resistance, reach the object accurately suppressing starting current transient peak, also do not affect again the normal work of start-stop motor simultaneously.
Accompanying drawing explanation
Fig. 1 is that invention relay current-limiting resistance is by structure sectional view during short circuit;
Structure sectional view when Fig. 2 is the incision of invention relay current-limiting resistance;
Fig. 3 is the worm's eye view of current-limiting resistance position of the present invention;
Fig. 4 is the scheme of installation of push rod of the present invention, winding, armature, tenminal block, support, control chip;
Fig. 5 is the connection diagram of invention relay access start-stop motor;
The structural representation of Fig. 6 invention relay access start-stop motor;
Fig. 7 is the plotted curve of existing starting current;
Fig. 8 is the curve comparison schematic diagram of starting current of the present invention and existing starting current.
In figure: 1, housing; 101, enclosure body; 102, upper cover; 2, winding; 3, armature; 31, dynamic iron core; 4, moving contact; 5, fixed contact; 51, the first gap; 52, the second gap; 6, armature spring; 7, moving contact spring; 8, push rod; 81, bar head; 82, shaft; 9, support; 91, guide through hole; 10, motor; 11, tenminal block; 12, current-limiting resistance; 13, control chip; 14, magnetic switch; 15, the curve of starting current before invention relay is accessed; 16, the curve of starting current after invention relay is accessed; 17, power input; 18, storage battery; 19, starting gear; 20, gear ring.
Embodiment
Below in conjunction with specific embodiment, the present invention is set forth further.
Embodiment one
The method of the suppression start-stop motor peak value starting current of the present embodiment, comprising:
(1) comprising on storage battery, ignition switch, the contact of magnetic switch and the start-stop motor main circuit of start-stop motor, set up one with the relay of current-limiting resistance, current-limiting resistance is in parallel with two tenminal blocks of relay, be then linked between described ignition switch and magnetic switch contact; A control chip is accessed at two tenminal block places of relay, this control chip have time delay and continue one section hold time after on-off control end function, existing conventional control chip can be adopted and work out corresponding program and realize, by switching or the endurance of control chip time-delay relay, thus controlling the time delay incision of current-limiting resistance and timing cuts out, battery feed is respectively the coil of relay, the coil of magnetic switch, control chip are powered; Wherein, the relay that the present embodiment adopts adopts normal closing type relay;
(2) control chip is by establishing the beginning by cable, now the coil of the coil (i.e. coil in the winding of relay) of relay and magnetic switch also simultaneously electric, by arranging control chip, make the control end delay time t of control chip
athe wire loop of rear engage relay, makes relay time delay disconnect, thus incision current-limiting resistance, this delay time t
abe generally 0 ~ 30ms, delay time t
adetermined by following formula:
Work as t
1>t
2time, t
a≤ t
1-t
2+ t
3; (A)
Work as t
1<t
2time, t
a≤ t
1+ t
3; (B)
In formula (A), (B), as shown in Figure 7, t
3for the starting current (i.e. peak value starting current) that first setting needs suppression i value above in control chip, when start-stop motor does not access described relay, starting current rises to the i value up-flow time used first from 0, generally arranges the size of i according to the needs suppressed; t
1for the coil of magnetic switch is by obtaining the electric pickup time used to the contact of closed electromagnetic switch; t
2for the coil of described relay is separated disengaging time used completely by obtaining electric extremely dynamic and static contact;
(3) control chip is by establishing the beginning by cable, now the coil of the coil of relay and magnetic switch also simultaneously electric, by arranging control chip, make the control end of control chip through the t that holds time
bafter, disconnect the wire loop of relay, this t that holds time
bbe generally 30 ~ 80ms, wherein:
t
b=T
1+T-t
4；（C）
In formula (C), as shown in Figure 7, T be starting current by 0 to dropping to the i value time used first; t
4for the coil of relay engages engaging time used completely by dead electricity to dynamic and static contact.
As shown in Figure 8, after adopting this method, starting current does not exceed set i value, and the start-stop power of motor of general car is 1.4-1.8 kilowatt, verified that starting current is safety electric flow valuve at below 600A, therefore the i value of the present embodiment is 560A.
The relay realizing the method for above-mentioned suppression start-stop motor peak value starting current as shown in Fig. 1 ~ 2, Fig. 4, comprise housing 1 and be all installed on winding 2, armature 3, moving contact 4, fixed contact 5, the spring in housing 1, and be installed on two tenminal blocks 11 on housing 1.As shown in Figure 3, housing 1 is cylindrical, is also provided with current-limiting resistance 12 and control chip 13 in it, and current-limiting resistance 12 coiling is camber arch shape, and two ends are electrically connected with two tenminal blocks 11 respectively.Winding 2 is positioned at the bottom of housing 1, armature 3 passes near the dynamic and static contact 4,5 being positioned at housing 1 top from winding 2 axis, the tenminal block 11 of two columns is respectively in the outer side of fixed contact 5, and be electrically connected with fixed contact 5, moving contact 4 is fitted fixed contact 5 under the action of the spring, 3, armature is pressed to below by spring, and moving contact 4 pushes up from fixed contact 5 thus disconnects two tenminal blocks 11 by armature 3 after winding 2 is energized.
The push rod 8 that armature 3 has bar head 81 and shaft 82 by dynamic iron core 31 is formed, and push rod is in " ⊥ " shape, and bar head 81 is connected with dynamic iron core 31.Housing 1 is made up of enclosure body 101 and upper cover 102, and winding 2 and armature 3 are arranged in enclosure body 101 by a support 9.The axis place of support 9 has guide through hole 91, shaft 82 passes from guide through hole 91, and tenminal block is by upper cover 102 11 passes and is fixed on upper cover 102 end face, fixed contact 5 is arranged in upper cover 102 by tenminal block 11, moving contact 4 is enclosed by fixed contact 5 and tenminal block 11 and upper cover 102 to be drawn together and in spacing space between fixed contact 5 and upper cover 102 end face, when upper cover 102 is integrally bonded with enclosure body 101, dynamic, fixed contact 4, above 5 supports 9 be all positioned at tenminal block 11, and form the first certain gap 51 between support 9, current-limiting resistance 12 and control chip 13 are installed in this first gap 51.
Spring is divided into armature spring 6, moving contact spring 7, and armature spring 6 one end and bar head 81 offset, and the other end and support 9 offset, and when not being energized, armature 3 is pressed to below for relay.
Wherein, upper cover 102 is installed two tenminal blocks 11 on the major loop for being serially connected in motor 10, under the elastic force effect of the attraction force of dynamic iron core 31 after winding 2 is energized and armature spring 6, moving contact spring 7, drive dynamic and static contact 4,5 to engage or be separated, thus being switched on or switched off two tenminal blocks 11.In the form of sheets, fixed contact 5 comprises two static touching plates be connected with two tenminal blocks respectively to the moving contact 4 of the present embodiment, and two static touching plates are separated by formation second gap 52; Moving contact spring 7 one end and upper cover 102 offset, the other end is connected with moving contact 4, moving contact 4 is made to be fitted on two static touching plates at moving contact spring 7 to connect two tenminal blocks when not being energized for relay, dynamic and static contact 4,5 is engaged, composition normally-closed contact, namely two normally closed tenminal blocks 11, passive, fixed contact 4,5 short circuit of current-limiting resistance 12 under normality, current direction now as shown by the dotted arrow in figure 1.The shaft 82 of push rod 8 through after guide through hole 91 just to the second gap 52, after winding 2 is energized, adhesive is moved iron core 31 and is driven push rod 8 to overcome armature spring 6, moving contact spring 7 elastic force and jack-up moving contact 4, dynamic and static contact 4,5 is separated, make current-limiting resistance 12 seal in the major loop of motor, current direction is now as shown in the dotted arrow of Fig. 2.
The control chip 13 of the present embodiment has the control end for controlled winding 2 current"on"time, and this control end serial connection is in the wire loop of winding 2; In set time, be switched on or switched off the wire loop of winding 2 by the control end of control chip 13, to make moving contact 4, fixed contact 5 is separated and connects current-limiting resistance 12, or dynamic and static contact 4,5 is engaged and short circuit current-limiting resistance 12.During use, passed by two tenminal blocks 11 of this relay in the major loop of access motor 10, the coil of relay, by storage battery power supply, suppresses the transient peak starting current of start-stop motor by sealing in current-limiting resistance 12 on the major loop of motor 10.Starting current curve 16 after access invention relay as shown in Figure 8, starting current curve 15 before contrast access invention relay is known, the current-limiting resistance 12 of incision can suppress transient peak starting current, and when start-stop motor normally works, current-limiting resistance 12 excises, and makes start-stop motor unaffected.
The dynamic and static contact 4,5 of the present embodiment all adopts tellurium copper material to make, and current-limiting resistance 12 adopts Cr20Ni80 or 0Cr21AI16Nb material to make, and when both all belong to 20 DEG C, specific resistance is 0.8 × 10
-6Ω m ~ 2.0 × 10
-6between Ω m, the fusing point alloy material that is greater than 1000 DEG C, be beneficial to ensure that current-limiting resistance 12 suppresses the reliability of electric current.
As shown in Figure 5, Figure 6, the start-stop motor of the enforcement above-mentioned suppression start-stop motor peak value starting current method of the present embodiment, comprise the relay of above-mentioned relay, motor 10, magnetic switch 14, the power input 17 inputted by outside storage battery power supply and above-mentioned the present embodiment, power input 17 1 tunnel is connected to motor 10 successively behind the contact of two tenminal blocks 11 of relay, magnetic switch 14, is formed to be used for motor 10 and to power the major loop of start and stop; Power input 17 has the coil (coil namely in winding 2) that the second tunnel connects relay, formed be used for the moving contact 4 of control relay, relay coil control loop that fixed contact 5 engages or is separated, wherein, being switched on or switched off by the coil of control chip 13 control relay of relay; Power input 17 has the coil that the 3rd tunnel connects magnetic switch 14, the solenoid winding control loop forming the make contact for controlling magnetic switch 14 or open; In set time, be switched on or switched off the wire loop (i.e. the wire loop of winding) of relay by control chip 13, suppress resistance 12 to suppress transient peak starting current to seal on the major loop of motor 10.Wherein, two tenminal blocks 11 of relay are the contact of relay.When after the closed connection of ignition switch L, because two tenminal blocks 11 of relay are in normally off, then define starting current as shown in Figure 7,8 when the make contact of magnetic switch 14.
After the ignition switch K connection of automobile, the storage battery 18 of automobile accesses the power input 17 of start-stop motor, respectively the coil of magnetic switch 14, the control chip of relay, motor 10 are powered, because the normally-closed contact of relay and the normally opened contact of magnetic switch 14 are connected in series, so before incision current-limiting resistance 12 can be guaranteed, the major loop of motor 10 can be controlled by magnetic switch 14.When ignition switch K connects, the power supply of storage battery 18 accesses the coil of magnetic switch 14, the control chip 13 of relay respectively, both simultaneously electric, the coil time delay of control chip 13 control relay is switched to bypass by normally closed and accessed current-limiting resistance 12, the coil of magnetic switch 14 obtain electric after, the contact of adhesive magnetic switch 14 makes the major loop of motor 10 connect on the one hand, motor 10 obtains electric operation, adhesive promotion starting gear 19 engages with the gear ring 20 of motor on the other hand, thus drives engine revolution.After motor normal starting, ignition switch K resets, the coil losing electricity of relay, magnetic switch 14, and the contact of magnetic switch 14 disconnects, and relay contact switches to normally closed, and motor 10 shuts down, and starting gear 19 departs from gear ring 20.
Embodiment two
The present embodiment two is with the difference of embodiment one: in control chip 13, arrange delay time t
afor 0ms, make the coil of control chip 13 control relay at once be switched to bypass by normally closed and accessed current-limiting resistance 12, realize the horse back incision of current-limiting resistance 12.
Embodiments of the present invention are not limited thereto, according to foregoing, according to ordinary technical knowledge and the customary means of related domain, do not departing under the present invention's above-mentioned basic fundamental thought prerequisite, the present invention can also make the equivalent modifications of other various ways, replacement or change, the setting value i value of such as starting current can be set as other numerical value according to the power of the needs of prolongation start-stop electrical machinery life, start-stop motor, and these changes all can realize the object of the invention.
Claims (6)
1. suppress a method for start-stop motor peak value starting current, comprising:
(1) comprising on storage battery, ignition switch, the contact of magnetic switch and the start-stop motor main circuit of start-stop motor, set up one with the relay of current-limiting resistance, current-limiting resistance is in parallel with two tenminal blocks of relay, be then linked between described ignition switch and magnetic switch contact;
(2) battery feed is respectively the coil of relay, the coil power supply of magnetic switch;
Access a control chip at two tenminal block places of relay, by switching or the endurance of control chip time-delay relay, thus control the time delay incision of current-limiting resistance and regularly cut out;
Described relay is normal closing type relay, and the controlling method that described control chip controls this relay is:
(1) control chip is by establishing the beginning by cable, makes the control end delay time t of control chip
athe wire loop of the described relay of rear connection, even if relay time delay disconnects, thus incision current-limiting resistance, wherein, delay time t
a≠ 0;
(2) control chip is by establishing the beginning by cable, makes the control end of control chip through the t that holds time
bafter, disconnect the wire loop of described relay, even if relay is obtaining the electric t that holds time
brear recovery closes on-state, thus cuts out current-limiting resistance.
2. the method for suppression start-stop motor peak value starting current according to claim 1, is characterized in that: the delay time t of described control chip
awith the t that holds time
bdetermined by following methods:
Work as t
1>t
2time, t
a≤ t
1-t
2+ t
3(A),
Work as t
1<t
2time, t
a≤ t
1+ t
3(B),
In formula (A), (B), in control chip, setting needs the starting current suppressing i value above, t
3for when start-stop motor does not access described relay, starting current rises to the i value up-flow time used first from 0; t
1for the coil of magnetic switch is by obtaining the electric pickup time used to the contact of closed electromagnetic switch; t
2for the coil of described relay is separated disengaging time used completely by obtaining electric extremely dynamic and static contact;
t
b＝t
1+T－t
4(C)，
In formula (C), T be starting current by 0 to dropping to the i value time used first; t
4for the coil of described relay engages engaging time used completely by dead electricity to dynamic and static contact.
3. one kind realizes the relay of the method suppressing start-stop motor peak value starting current described in claim 1 or 2, comprise housing (1) and be installed on the winding (2) in housing (1), armature (3), moving contact (4), fixed contact (5), spring, housing (1) is provided with two tenminal blocks (11) on the major loop for being serially connected in motor, winding (2) is positioned at the bottom of housing (1), armature (3) passes to being positioned at the dynamic of housing (1) top from winding (2) axis, fixed contact (4, 5) near, the tenminal block (11) of two columns is respectively in fixed contact (5) side outward, and be electrically connected with fixed contact (5), moving contact (4) is fitted fixed contact (5) under the action of the spring, armature (3) is then pressed to below by spring, moving contact (4) pushes up from fixed contact (5) thus disconnects two tenminal blocks (11) by described armature (3) after winding (2) energising, it is characterized in that: in described housing (1), set up a current-limiting resistance (12), described current-limiting resistance (12) is positioned at the below of two tenminal blocks (11), current-limiting resistance (12) two ends are electrically connected with two tenminal blocks (11) respectively,
Set up a control chip (13) in described relay, described control chip (13) has the control end for controlled winding (2) current"on"time, and this control end serial connection is in the wire loop of winding (2); In set time, the wire loop of winding (2) is switched on or switched off by the control end of control chip (13), current-limiting resistance is connected to make dynamic and static contact be separated, or dynamic and static contact is engaged and short circuit current-limiting resistance (12), with by sealing in the peak value starting current that current-limiting resistance (12) suppresses start-stop motor on the major loop of motor;
Described control chip, by establishing the beginning by cable, makes the control end delay time t of control chip
athe wire loop of the described relay of rear connection, even if relay time delay disconnects, thus incision current-limiting resistance, wherein, delay time t
a≠ 0;
Described control chip, by establishing the beginning by cable, makes the control end of control chip through the t that holds time
bafter, disconnect the wire loop of described relay, even if relay is obtaining the electric t that holds time
brear recovery closes on-state, thus cuts out current-limiting resistance.
4. relay according to claim 3, it is characterized in that: described armature (3) is made up of dynamic iron core (31) and the push rod (8) with bar head (81) and shaft (82), described push rod (8) is in " ⊥ " shape, and bar head (81) is connected with dynamic iron core (31), described housing (1) is made up of enclosure body (101) and upper cover (102), described winding (2) and armature (3) are arranged in enclosure body (101) by a support (9), the axis place of described support (9) has guide through hole (91), described shaft (82) passes from guide through hole (91), described tenminal block (11) is passed by upper cover (102) and is fixed on upper cover (102) end face, described fixed contact (5) is arranged in upper cover (102) by tenminal block (11), moving contact (4) is enclosed by fixed contact (5) and tenminal block (11) and upper cover (102) to be drawn together and in spacing space between fixed contact (5) and upper cover (102) end face, when described upper cover (102) is integrally bonded with enclosure body (101), described dynamic, fixed contact (4, 5) described support (9) top is all positioned at tenminal block (11), and form certain the first gap (51) between support (9), described current-limiting resistance (12) and control chip (13) are installed in this first gap (51).
5. relay according to claim 4, it is characterized in that: described spring comprises armature spring (6) and moving contact spring (7), described armature spring (6) one end and bar head (81) offset, the other end and support (9) offset, and when not being energized, armature (3) are pressed to below for relay; Described fixed contact (5) comprises two static touching plates be connected with two tenminal blocks (11) respectively, and two static touching plates are separated by formation second gap (52); Described moving contact spring (7) one end and upper cover (102) offset, the other end is connected with moving contact (4), makes described moving contact (4) be fitted on two static touching plates to connect two tenminal blocks (11) for relay when not being energized; The shaft (82) of described push rod (8) through after guide through hole (91) just to the second gap (52) fixed contact (5), the rear adhesive of described winding (2) energising is moved iron core (31) and is driven push rod (8) overcome the elastic force of armature spring (6) and moving contact spring (7) and move up, jack-up moving contact (4), makes dynamic and static contact (4,5) be separated.
6. the relay according to any one of claim 3-5, is characterized in that: described current-limiting resistance (12) is for specific resistance is 0.8 × 10
-6Ω m ~ 2.0 × 10
-6between Ω m, the fusing point alloy material that is greater than 1000 DEG C.
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| CN201210590649.4A CN103061944B (en) | 2012-12-29 | 2012-12-29 | Suppress the method for start-stop motor peak value starting current, relay and start-stop motor |
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| CN103061944B true CN103061944B (en) | 2015-09-30 |
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| CN103311054B (en) * | 2013-05-16 | 2016-01-13 | 广州汽车集团零部件有限公司 | The integral structure of a kind of electromagnetic switch and relay and apply the start-stop motor of this integral structure |
| CN103277228A (en) * | 2013-06-04 | 2013-09-04 | 汪剑峰 | Modified forced-meshing starter |
| CN103456580B (en) * | 2013-08-20 | 2015-06-17 | 广州汽车集团零部件有限公司 | Combined structure of electromagnetic switch and relay and start-stop motor using structure |
| CN103754179B (en) * | 2014-01-27 | 2017-02-22 | 澳特卡新能源科技（上海）有限公司 | Start-stop control system of automatic transmission car |
| CN104863772B (en) * | 2014-09-22 | 2019-03-22 | 北汽福田汽车股份有限公司 | A kind of starter motor protection circuit and the vehicle with it |
| CN105604759B (en) * | 2016-03-01 | 2018-07-06 | 芜湖杰诺瑞汽车电器***有限公司 | A kind of starter assembly of motor vehicles |
| TWM576750U (en) | 2017-07-25 | 2019-04-11 | 美商米沃奇電子工具公司 | Electrical composition, electric device system, battery pack, electric motor, motor assembly and electric motor assembly |
| US10724491B2 (en) * | 2018-05-01 | 2020-07-28 | GM Global Technology Operations LLC | Brushless starter system with pinion pre-engagement control |
| JP6983300B1 (en) * | 2020-11-30 | 2021-12-17 | 三菱電機株式会社 | Auxiliary switch for starter |
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