CN2035393U - Control & safety device for starting motor - Google Patents
Control & safety device for starting motor Download PDFInfo
- Publication number
- CN2035393U CN2035393U CN 88209779 CN88209779U CN2035393U CN 2035393 U CN2035393 U CN 2035393U CN 88209779 CN88209779 CN 88209779 CN 88209779 U CN88209779 U CN 88209779U CN 2035393 U CN2035393 U CN 2035393U
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- Prior art keywords
- circuit
- judgment means
- voltage
- starter motor
- output
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Abstract
The utility model discloses a control & safety device for starting motor, comprising an operating status judgement device, a hours of operation judgement device, a battery voltage judgement device, a starting interval judgement device and a control device which is coupled with the four judgement devices. The utility model can be applied to all the starting motors which adopt accumulators as the supply power, in order to avoid the overlong hours of operation of the starting motor and the excessively short continuous starting interval, close the starting motor timely and rapidly and protect the accumulator as the power supply. In addition, the utility model also provides means for forcibly starting the starting motor.
Description
The utility model relates to a kind of starter motor control and protective gear.
Starter motor is a kind of device that is used for starting other machine (for example almost car engine).Generally, it relies on powered battery, electric current very big (can reach the hundreds of ampere) during work, thereby according to the operation regulations, the starter motor operating time can not be oversize, the blanking time of starting can not be too short continuously, in case the machine proper functioning of being started is promptly turned off starter motor.Otherwise starter motor damages easily.In addition, be the protection battery, when the regulation cell voltage is lower than safe threshold values, turn off starter motor.
At present, owing to there is not automatic controller, the start and stop of starter motor are all decided by rule of thumb by operator.At first, it is normal that the operator is difficult to discover battery, thereby fragile battery.Secondly, whether the starter motor operating time is oversize, and whether this closes motivation, and this is all judged by rule of thumb by operator.If the machine that is started is proper functioning, and starter motor is not in time turned off, because both still have Mechanical Contact, the reaction force that the former produces can damage starter motor.Operating time, the long starter motor that then can make burnt out because of overheated.Moreover, because some operator does not observe the operation regulations, when machine can not start, start starter motor continuously, cause starter motor and storage battery to damage because of stream time is long.
The purpose of this utility model is to provide a kind of starter motor control and protective gear; it can close motivation immediately after the machine that will start enters normal state; exceed schedule time, start at interval voltage less than stipulated time and battery in the starter motor operating time and be lower than under the situation such as safe threshold values, close motivation rapidly.
The utility model comprises a working state judgment means, operating time judgment means, cell voltage judgment means, a starting interval judgment means and is coupled to the control gear of above-mentioned four judgment means.
Described control gear has been controlled the startup of starter motor, and itself is driven by the output signal of four judgment means again.Described judgment means can judge whether cell voltage is lower than safe threshold values; whether the starter motor operating time exceeds schedule time; whether operation range is shorter than the stipulated time; and whether the machine that will start has entered normal working; as long as in these situations a speciogenesis is arranged; the corresponding judgment device will output signal make control gear cut off the circuit of starter motor; it is quit work; thereby realized control and protection, avoided above-mentioned damage starter motor and battery to starter motor.
Specifically describe preferred embodiment of the present utility model below with reference to accompanying drawing, therefrom also can find out some other purpose of the present utility model and advantage.Wherein:
Fig. 1 is a circuit block diagram of the present utility model.
Fig. 2 is a kind of physical circuit figure of the present utility model.
Referring to Fig. 1, control gear 5 is linked in cell voltage judgment means 1, operating time judgment means 2, working state judgment means 3 and the starting output of judgment means 4 at interval.As long as one of following four kinds of situations occur: 1. cell voltage is lower than safe threshold values; 2. the starter motor operating time exceeds schedule time; 3. the machine that will start has entered normal working; 4. starter motor blanking time of starting continuously is less than the stipulated time, the corresponding judgment device promptly export represent the corresponding electrical signal of situation appears, make the circuit of control gear 5 cut-out starter motors 6, it is quit work.Have only when above-mentioned four kinds of situations do not occur, control gear 5 is connected the circuit of starter motor under the corresponding signal of four judgment means outputs drives, it is started working.
Fig. 2 is of the present utility model a kind of physical circuit figure that the block diagram according to Fig. 1 obtains.Triode T1, resistance R
0, capacitor C
2With reference diode DW
1Form a mu balanced circuit, be connected on battery E two ends, press than galvanic current one of the emitter of triode T1 output
VAs working power of the present utility model.Certainly, also can provide a DC electrical source as working power in addition.The K in case close a switch
1, circuit is promptly started working.
Resistance R
9, R
10Be serially connected in and form a bleeder circuit between the terminal of working power, give comparator C MP
1A reference voltage is provided.Resistance R
11, R
12Be serially connected in battery E two ends, also form a bleeder circuit, give comparator C MP
1A sampled voltage is provided.When cell voltage during greater than the safety threshold values, promptly sampled voltage is greater than reference voltage, comparator C MP
1The output high level.Because at comparator C MP
1Output terminal and the indirect capacitor C of battery E negative pole
3, thereby comparator C MP
1Output must just can reach high level through certain hour, this has guaranteed certain comparison time.Comparator C MP
1Output HIGH voltage is by diode D
2Drive triode T
2, T
3, making magnetic switch J adhesive, starter motor is started working.After the starter motor work cell voltage can reduce to suddenly very low, at this moment because triode T
1Pass through resistance R
7, R
8, diode D
1Link comparator C MP
1"+" end, guarantee "+" terminal voltage greater than "-" terminal voltage, make comparator output remain high level.If there is not D
1, R
8, then when cell voltage reduces less than a certain value, comparator C MP
1Output low level, thus starter motor turned off.So just constituted another kind protection form to storage battery.
In operating time judgment means 2, when circuit is started working, comparator C MP
2"-" end is because of capacitor C
4Clamper and be in low potential, and "+" end is by resistance R
14, R
15The reference voltage that bleeder circuit provides is obviously higher, thereby the output high level.Output level is converted to the low level time by feedback network R
17, R
18And capacitor C
4K switch is worked as in decision
2When closing, conversion time is shorter; K switch
2Open, then conversion time is longer.Comparator C MP
2Output pass through capacitor C
3Be coupled to an input end of bistable circuit 7, its another input end passes through capacitor C
6Be coupled to power supply E negative pole, thereby at the initial time of circuit working, bistable circuit 7 connects phase inverter F
1The output terminal output low level, after anti-phase, become high level.Circuit works on (that is behind starter motor work certain hour) behind the certain hour, comparator C MP
2Output is reversed to low level, thereby bistable circuit output high level is to phase inverter F
1, make it output low level, make triode T
2, T
3End, magnetic switch J opens, and turns off starter motor.Here, bistable circuit 7 and phase inverter F
1Establish for strengthening driving force, if remove, then can be with comparator C MP
2Output terminal directly receive phase inverter F
2Input end and diode D
2
Be connected on the resistance R on the working power
5, R
4Give comparator C MP
3"+" end one reference voltage is provided, and be connected on the battery two ends by resistance R
1, R
2, capacitor C
1The bleeder circuit of forming is given comparator C MP
3"-" end a sampled voltage is provided.When circuit is started working, C
1Both end voltage is very low, thereby comparator C MP
3The output high level.When machine that starter motor started entered normal working, battery voltage was gone up to normal value, C
1Charge to high voltage (greater than reference voltage), thereby comparator C MP
3Output low level, and then magnetic switch J is opened, starter motor is in time quit work.
When the starter motor operating time exceeds schedule time, comparator C MP
2Output counter-rotating, the output of bistable circuit 7 be counter-rotating thereupon also, and the output high level is to phase inverter F
1, output low level is to phase inverter F
2Phase inverter F
2Pass through resistance R with circuit work power
28With diode D
3Give capacitor C
8Charging makes comparator C MP
4The voltage of "-" end surpasses by resistance R
24, R
25Divide the reference voltage that is pressed in its "+" end, thereby comparator C MP
4Output low level stays open magnetic switch J, and starter motor can't start.K switch
1After opening, capacitor C
8Begin discharge, its voltage descends.At comparator C MP
4"-" terminal voltage is higher than during "+" terminal voltage, even close a switch K
1, magnetic switch J can not be closed.Up to capacitor C
8Voltage drop to a certain degree comparator C MP
4Output just can be reversed.Magnetic switch J could be closed.So just having guaranteed has a sufficiently long intermittent phase between the starter motor continuous quadratic starts.
In circuit, can draw guide line outside from the A point.Utilize the level output control external system of this point and synchronousing working of starter motor.
In addition, draw a lead, in case of necessity, can utilize this lead to connect triode T at the collector electrode of triode T
3Emitter, with triode T
3Magnetic switch J is connected in bypass, realizes the force start of starter motor.
If in foregoing circuit, "+" of all comparators, "-" end are exchanged, then as long as the wired AND that four judgment means are ordered at A makes wired OR into, and then anti-phase, can realize the identical function of Fig. 2 circuit.
In addition, as long as circuit is done conversion slightly, the described magnetic switch J in the circuit can replace with the contactless solid-state switch of high power transistor (GTR) and so on.
More than describe and be intended to instruct concrete enforcement of the present utility model.Obviously, the practician in field can make many variations and modification in view of the above under the utility model, and the scope of the present utility model that unlikely disengaging claims limit.
Claims (5)
1, a kind of starter motor control and protective gear, wherein, starter motor is adopted battery operation, it is characterized in that, and it comprises:
A cell voltage judgment means,
An operating time judgment means,
A working state judgment means,
A starting interval judgment means,
The control gear of the startup of a control starter motor that is coupled to above-mentioned four judgment means output terminals.
2, device as claimed in claim 1 is characterized in that,
Described cell voltage judgment means comprises the second circuit of first circuit of the reference voltage of an output characterizing battery safety valve threshold voltage, a sampled voltage of exporting characterizing battery voltage and first comparison circuit of these two circuit of coupling.
Described operating time judgment means comprises that an output characterizes the 4th circuit of the tertiary circuit of the reference voltage of regulation operating time, the sampled voltage of an output sign starter motor operating time and second comparison circuit of these two circuit of coupling,
Described working state judgment means comprises the 3rd comparison circuit of the 5th circuit of output one reference voltage, the 6th circuit of exporting the sampled voltage that characterizes working state and these two circuit of coupling,
Described starting decision circuitry at interval comprises the 4th comparison circuit of exporting the 7th circuit of a reference voltage, the 8th circuit of exporting the sampled voltage that characterizes blanking time and these two circuit of coupling.
3, device as claimed in claim 1 is characterized in that, described control circuit comprises a switch driving circuit and a switch.
4, device as claimed in claim 2, it is characterized in that, described operating time judgment means also comprises a bistable circuit that is coupled to described second comparison circuit, and an output terminal of described bistable circuit is coupled to described starting described the 8th circuit of decision circuitry at interval.
5, device as claimed in claim 3 is characterized in that, described switch comprises a magnetic switch or a solid-state switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88209779 CN2035393U (en) | 1988-08-16 | 1988-08-16 | Control & safety device for starting motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88209779 CN2035393U (en) | 1988-08-16 | 1988-08-16 | Control & safety device for starting motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2035393U true CN2035393U (en) | 1989-04-05 |
Family
ID=4843356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88209779 Withdrawn CN2035393U (en) | 1988-08-16 | 1988-08-16 | Control & safety device for starting motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2035393U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306930A (en) * | 2018-09-12 | 2019-02-05 | 中国航发湖南动力机械研究所 | Engine starting gear and engine system |
| CN112081701A (en) * | 2020-09-21 | 2020-12-15 | 潍柴动力股份有限公司 | Protection control method, device and equipment for starter and storage medium |
-
1988
- 1988-08-16 CN CN 88209779 patent/CN2035393U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306930A (en) * | 2018-09-12 | 2019-02-05 | 中国航发湖南动力机械研究所 | Engine starting gear and engine system |
| CN112081701A (en) * | 2020-09-21 | 2020-12-15 | 潍柴动力股份有限公司 | Protection control method, device and equipment for starter and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |