CN203050973U - Vehicle starting motor overtime protection system - Google Patents
Vehicle starting motor overtime protection system Download PDFInfo
- Publication number
- CN203050973U CN203050973U CN 201220728583 CN201220728583U CN203050973U CN 203050973 U CN203050973 U CN 203050973U CN 201220728583 CN201220728583 CN 201220728583 CN 201220728583 U CN201220728583 U CN 201220728583U CN 203050973 U CN203050973 U CN 203050973U
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- China
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- starting motor
- overtime
- motor
- delay relay
- protection system
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Abstract
The utility model belongs to the field of underground construction vehicles, and particularly relates to a vehicle starting motor overtime protection system. The vehicle starting motor overtime protection system comprises a current return circuit which is composed of a storage battery, a key switch, a starting protection relay normally-closed switch and a starting motor starting end. The vehicle starting motor overtime protection system further comprises an electrify delay relay. Two ends of a coil portion of the electrify delay relay are respectively communicated with the key switch and a negative electrode of the starting motor starting end. A normally-closed switch of the electrify delay relay is connected on the current return circuit in series, and is in parallel with the coil portion of the electrify delay relay. The vehicle starting motor overtime protection system not only can ensure the effects that a starting motor can timely stop operation after an engine in a conventional state is normally started, and the engine is prevented from being started again under the operation state. Meanwhile, if the engine can not be started normally and if overtime starting exists, and the current return circuit can be disconnected automatically, so that an overtime damaged situation of the starting motor is avoided. The vehicle starting motor overtime protection system is simple in structure, easy to achieve and obvious in protection effect.
Description
Technical field
The utility model belongs to the underground engineering vehicular field, is specifically related to the overtime protective system of a kind of vehicle launch motor.
Background technique
1), behind the vehicle launch at present regular meeting runs into following two kinds of situations in the underground engineering vehicle motor start-up course:, starting motor tooth head fails in time to withdraw from stall; 2), after meeting situation such as engine ignition, driver Ruo Yin anxiety and operate miss be the operation start motor again, can cause tooth on the flywheel ring gear and the mutual impact friction of tooth head of starting motor.Above-mentioned two kinds of situations all can make the gear of starting motor break, and when serious even burn out motor, cause starting motor to shorten working life.In view of above-mentioned condition, generally adopt engine starting system shown in Figure 1 at present, its actual workflow is as follows: rotate key operation to " start ", by starting the normally-closed contact of protective relay, the starting motor coil gets electric, the starting motor entry into service, and drive engine running; Engine speed increases gradually, and generator begins generating, when rotating speed reaches certain value, generator D+ terminal voltage reaches the operating voltage that starts protective relay, and the coil of relay gets electric, and normally-closed contact disconnects, thereby cut off the control loop of starting motor, reach the purpose of protection motor; And when normal working of engine; generator for electricity generation; because starting the coil of protective relay gets; its normally-closed contact disconnects all the time; therefore, even in engine operation process, driver's starting ignition circuit how no matter; starting motor can not worked yet, thereby has avoided the damage of starting motor tooth head.The above-mentioned generation that no doubt can effectively avoid above-mentioned two kinds of situations, the defective of its existence still can not look down upon: if motor is worked under the weather of plateau or cold, difficult phenomenon can take place to start, the easy overtime ato unit of this situation driver, its overtime startup is easy to burn out the starting motor coil, not only cause the damage of starting motor, simultaneously accumulator electric-quantity is exhausted, thereby bring very big puzzlement to the driver.
The model utility content
The purpose of this utility model provides the overtime protective system of a kind of vehicle launch motor, and it is simple in structure and be easy to realize that the starting motor that can effectively avoid causing because of overtime startup damages and the accumulator electric-quantity tcam-exhaustion.
For achieving the above object, the utility model has adopted following technological scheme: the overtime protective system of a kind of vehicle launch motor, comprise the current loop that is made of storage battery, key operation, startup protective relay normally closed switch and starting motor start end, the overtime protective system of described vehicle launch motor also comprises energization delay relay; The coil portion two ends of described energization delay relay are communicated with the negative pole setting of key operation and starting motor start end respectively, the normally closed switch of energization delay relay be serially connected with on the described current loop and with its coil portion between constitute relation in parallel.
Major advantage of the present utility model is: the time-delay that relies on time delay relay itself the to possess effect that opens circuit also is its coil portion in case the characteristic that namely disconnects of its normally closed switch of electric back, thereby realize time-delay cut-out function for above-mentioned current loop; Guaranteed that not only motor under the conventional state normally starts the back starting motor and can in time withdraw from stall and prevent the motor effect of row startup down in working order; fail normally to start as if motor simultaneously; if overtime startup this moment; above-mentioned current loop meeting automatic disconnection; thereby avoided the overtime damage situation of starting motor; it is simple in structure and be easy to realize that the protection effect is obvious.
Description of drawings
Fig. 1 is conventional engines start-up system circuit diagram;
Fig. 2 is circuit arrangement phase diagram of the present utility model.
Embodiment
The overtime protective system of a kind of vehicle launch motor, comprise the current loop that is made of storage battery 10, key operation 20, startup protective relay normally closed switch 30 and starting motor 40 start ends, it is characterized in that: the overtime protective system of described vehicle launch motor also comprises energization delay relay; Coil portion 51 two ends of described energization delay relay are communicated with the negative pole setting of key operation 20 and starting motor 40 start ends respectively, and the normally closed switch 52 of energization delay relay is serially connected with on the described current loop and with 51 of its coil portions and constitutes relation in parallel.
As further preferred version of the present utility model: as shown in Figure 2, the normally closed switch 52 of described energization delay relay is serially connected with key operation 20 and starts on one section current loop between the protective relay normally closed switch 20; Simultaneously, the delay time of energization delay relay is preferably 20S.Like this, rely on the 20S delay time of energization delay relay, can guarantee that not only it does not influence the circuit start characteristic of circuitry itself, in case energization delay relay energising simultaneously surpasses 20S, the normally closed switch 52 of energization delay relay disconnects at once, thereby also just avoided the overtime startup problem of starting motor 40, its integrated circuit is easy to realize, work safety and reliable and stable.
Under the actual working state; when motor is prepared to start; at first rotate key operation 20 to " start " shelves; the coil portion 51 of the on-delay time relay gets electric, and its time-delay this moment 20S picks up counting, and the normally closed switch 52 of the on-delay time relay also still is in closed state simultaneously; starting motor 40 start ends begin closure; also namely this moment, starting motor 40 was started working, and divided several situations to be set forth in conjunction with Fig. 2 below, so that protective function of the present utility model to be described:
1), start function normally to start, key operation 20 fail in time to be reset to " run " shelves.After the normal startup of motor, drive generator a and begin generating; The B+ of generator a end is to storage battery 10 chargings, and its D+ end begins to send electric power, and that the coil that starts protective relay is got is electric, starts protective relay normally closed switch 30 and disconnects, and starting motor 40 quits work.
2), motor fails normal the startup, continues this moment to keep key operation in " start " shelves overlong time (being overtime startup).The on-delay time relay time-delay 20S time one arrives, and the normally closed switch 52 of energization delay relay disconnects, and starting motor 40 namely quits work.
3), motor when proper functioning, generator a generating starts protective relay normally closed switch 30 and is in off state, also is that the whole piece current loop all is in turnoff state.How again this moment no matter driver's starting ignition circuit, can not start starting motor 40, avoids damaging with protection starting motor 40.
The time-delay that the utility model relies on time delay relay itself the to possess effect that opens circuit also is its coil portion in case the characteristic that namely disconnects of its normally closed switch of electric back, thereby realize time-delay cut-out function for above-mentioned current loop; Guaranteed that not only motor under the conventional state normally starts back starting motor 40 and can in time withdraw from stall and prevent the motor effect of row startup down in working order; Simultaneously if motor is failed normal the startup, if overtime startup this moment, above-mentioned current loop can automatic disconnection, thereby has avoided the overtime damage situation of starting motor 40, and it is simple in structure and be easy to realize, the protection effect obviously and reliable and stable work.
Claims (3)
1. overtime protective system of vehicle launch motor, comprise the current loop that is made of storage battery (10), key operation (20), startup protective relay normally closed switch (30) and starting motor (40) start end, it is characterized in that: the overtime protective system of described vehicle launch motor also comprises energization delay relay; The coil portion of described energization delay relay (51) two ends are communicated with the negative pole setting of key operation (20) and starting motor (40) start end respectively, the normally closed switch of energization delay relay (52) be serially connected with on the described current loop and with its coil portion (51) between constitute relation in parallel.
2. the overtime protective system of vehicle launch motor according to claim 1 is characterized in that: the normally closed switch of described energization delay relay (52) is serially connected with key operation (20) and starts on one section current loop between the protective relay normally closed switch (20).
3. the overtime protective system of vehicle launch motor according to claim 1 and 2, it is characterized in that: the delay time of described energization delay relay is 20S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220728583 CN203050973U (en) | 2012-12-26 | 2012-12-26 | Vehicle starting motor overtime protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220728583 CN203050973U (en) | 2012-12-26 | 2012-12-26 | Vehicle starting motor overtime protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050973U true CN203050973U (en) | 2013-07-10 |
Family
ID=48733932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220728583 Expired - Lifetime CN203050973U (en) | 2012-12-26 | 2012-12-26 | Vehicle starting motor overtime protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050973U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134442A (en) * | 2015-10-22 | 2015-12-09 | 李惠远 | Farm machine start intelligent protection control system and method |
| CN108119280A (en) * | 2016-11-29 | 2018-06-05 | 本田技研工业株式会社 | The start-control device of internal combustion engine and locking determination method |
| CN111271203A (en) * | 2020-03-27 | 2020-06-12 | 江苏科技大学 | Lifeboat diesel engine starting motor control system |
| CN111502883A (en) * | 2020-05-08 | 2020-08-07 | 江苏科技大学 | Starting motor control system |
| CN112539127A (en) * | 2020-11-26 | 2021-03-23 | 哈尔滨北方防务装备股份有限公司 | Starting control protection system for double-section tracked vehicle |
| CN114704413A (en) * | 2022-04-29 | 2022-07-05 | 三一重机有限公司 | Method, device and system for controlling working machine and working machine |
-
2012
- 2012-12-26 CN CN 201220728583 patent/CN203050973U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134442A (en) * | 2015-10-22 | 2015-12-09 | 李惠远 | Farm machine start intelligent protection control system and method |
| CN108119280A (en) * | 2016-11-29 | 2018-06-05 | 本田技研工业株式会社 | The start-control device of internal combustion engine and locking determination method |
| CN111271203A (en) * | 2020-03-27 | 2020-06-12 | 江苏科技大学 | Lifeboat diesel engine starting motor control system |
| CN111502883A (en) * | 2020-05-08 | 2020-08-07 | 江苏科技大学 | Starting motor control system |
| CN111502883B (en) * | 2020-05-08 | 2021-10-22 | 江苏科技大学 | Starting motor control system |
| CN112539127A (en) * | 2020-11-26 | 2021-03-23 | 哈尔滨北方防务装备股份有限公司 | Starting control protection system for double-section tracked vehicle |
| CN114704413A (en) * | 2022-04-29 | 2022-07-05 | 三一重机有限公司 | Method, device and system for controlling working machine and working machine |
| CN114704413B (en) * | 2022-04-29 | 2023-09-26 | 三一重机有限公司 | Control method, device and system of working machine and working machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |