CN203570401U - Delay power-off control circuit of post-processing electrical system - Google Patents
Delay power-off control circuit of post-processing electrical system Download PDFInfo
- Publication number
- CN203570401U CN203570401U CN201320758977.0U CN201320758977U CN203570401U CN 203570401 U CN203570401 U CN 203570401U CN 201320758977 U CN201320758977 U CN 201320758977U CN 203570401 U CN203570401 U CN 203570401U
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- power
- delay
- delay relay
- post
- control circuit
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- 238000012805 post-processing Methods 0.000 title abstract description 8
- 238000012958 reprocessing Methods 0.000 claims description 26
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 5
- 239000004202 carbamide Substances 0.000 abstract description 5
- 238000002425 crystallisation Methods 0.000 abstract description 3
- 230000008025 crystallization Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The utility model relates to a post-processing circuit for exhaust gas emission of an engine, in particular to a delay power-off control circuit of a post-processing electrical system. The delay power-off control circuit comprises a storage battery and the post-processing electrical system, wherein the storage battery is divided into two ways of a normal open power supply and a controlled power supply, a power switch is arranged on the controlled power supply, one end of the post-processing electrical system is connected to the normal open power supply, the delay power-off control circuit further comprises a power-off delay relay, one end of a coil of the power-off delay relay is connected to the output end of the power switch, the other end of the coil of the power-off delay relay and the other end of the post-processing electrical system are connected to the ground, one end of a contact of the power-off delay relay is connected to the normal open power supply, the other end of the contact of the power-off delay relay is connected to the post-processing electrical system. The delay power-off control circuit is simple and reliable, the power-off delay relay is added on the basis of an original vehicle, so that the blockage caused by crystallization in an exhaust pipe and a urea pipe of the automobile can be avoided, and a driver does not change the operation habit of halting during power outage.
Description
Technical field
The utility model relates to the post-processing circuit of engine exhaust emission, is specifically related to a kind of delay power-off control circuit of reprocessing electric system.
Background technique
The motor exhaust after-treatment system of state four and above discharge requires after engine shutdown just powered-down completely of 30S, so that the urea that urea pump works in emptying pipeline prevents from accumulating for a long time crystallization, and the reliably working of assurance reprocessing.
But in actual use, can not wait for that 30S closes car load power supply again and leaves after driver kills engine, even if adopt hand switch under car, whole power process still can not exceed 30S.In driver's this driving bad habit short time, can not exert an influence to the normal work of reprocessing, but after a period of time because this habitually unreasonable operation can cause urea tube intercrystalline stop up, engine failure take place frequently and discharge not up to standard.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of delay power-off control circuit of reprocessing electric system to overcome above-mentioned defect.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of delay power-off control circuit of reprocessing electric system, comprise storage battery and reprocessing electric system, described storage battery is divided into normal open power supply and controlled source two-way, described controlled source is provided with power switch, one end of described reprocessing electrical system is connected with described normal open power supply, also comprise power-off delay relay, one end of described power-off delay relay coil connects the output terminal of described power switch, the equal ground connection of the other end of the other end of described power-off delay relay coil and described reprocessing electric system, one end of the contact of described power-off delay relay is connected with described normal open power supply, the other end of described power-off delay relay contact connects described reprocessing electric system.
The beneficial effects of the utility model are: on existing basis, between reprocessing electric system and power supply, increase a power-off delay relay, make automobile after powered-down, reprocessing electric system can also work on and discharge residual tail gas in car, the obstruction of well having avoided the crystallization of urea tube internal cause to cause.
On the basis of technique scheme, the utility model can also do following improvement.
Further, the delay time on described power-off delay relay is set as 30 seconds.
Adopt above-mentioned further beneficial effect to be: the delay time of power-off delay relay is set as to 30 seconds, the reprocessing electric system that forms with it closed-loop path can be worked on 30 seconds after power-off, to meet the normal job requirement (being NBS) of after-treatment system.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
In accompanying drawing, the parts of each label representative are as follows:
1, power-off delay relay, 2, reprocessing electrical system, 3, storage battery, A, controlled source, B, normal open power supply, C, ground wire, S, power switch.
Embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of delay power-off control circuit of reprocessing electric system, comprise storage battery 3 and reprocessing electric system 2, described storage battery 3 is divided into normal open power supply B and controlled source A two-way, described controlled source A is provided with power switch S, one end of described reprocessing electrical system 2 is connected with described normal open power supply B, also comprise power-off delay relay 1, one end of described power-off delay relay 1 coil connects the output terminal of described power switch S, the equal ground connection of the other end of the other end of described power-off delay relay 1 coil and described reprocessing electric system 2, be ground wire C, one end of the contact of described power-off delay relay 1 is connected with described normal open power supply B, the other end of described power-off delay relay 1 contact connects described reprocessing electric system 2, controlled source A controls the work of the coil of power-off delay relay 1, tip side access normal open power supply B and the reprocessing electric system 2 of power-off delay relay.
Delay time on described power-off delay relay is set as 30S, by using control circuit that power-off delay relay is critical piece composition to realize after-treatment system, work on closing in car load power supply 30S, to meet the normal job requirement of after-treatment system.
Working principle of the present utility model is: after car load power connection, power-off delay relay is connected at once, and after-treatment system is in running order; Driver shuts down and closes after general power, and relay time delay 30S disconnects, and after-treatment system still can work on during this period of time.This control circuit is simple, reliable, and on former car basis, only needing increases a relay, and driver need not change the operating habit of shutting down power-off.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. the delay power-off control circuit of a reprocessing electric system, comprise storage battery and reprocessing electric system, it is characterized in that: described storage battery is divided into normal open power supply and controlled source two-way, described controlled source is provided with power switch, one end of described reprocessing electrical system is connected with described normal open power supply, also comprise power-off delay relay, one end of described power-off delay relay coil connects the output terminal of described power switch, the equal ground connection of the other end of the other end of described power-off delay relay coil and described reprocessing electric system, one end of the contact of described power-off delay relay is connected with described normal open power supply, the other end of described power-off delay relay contact connects described reprocessing electric system.
2. the delay power-off control circuit of a kind of reprocessing electric system according to claim 1, is characterized in that: the delay time on described power-off delay relay is set as 30 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320758977.0U CN203570401U (en) | 2013-11-26 | 2013-11-26 | Delay power-off control circuit of post-processing electrical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320758977.0U CN203570401U (en) | 2013-11-26 | 2013-11-26 | Delay power-off control circuit of post-processing electrical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570401U true CN203570401U (en) | 2014-04-30 |
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ID=50538135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320758977.0U Expired - Lifetime CN203570401U (en) | 2013-11-26 | 2013-11-26 | Delay power-off control circuit of post-processing electrical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570401U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888789A (en) * | 2016-06-12 | 2016-08-24 | 中国重汽集团济南动力有限公司 | Power supply system of heavy-duty car SCR system |
| CN108988471A (en) * | 2018-07-12 | 2018-12-11 | 广西柳工机械股份有限公司 | Power supply control circuit of engine control module |
| CN112835314A (en) * | 2021-01-04 | 2021-05-25 | 东风汽车股份有限公司 | Fire engine time delay outage control system |
-
2013
- 2013-11-26 CN CN201320758977.0U patent/CN203570401U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888789A (en) * | 2016-06-12 | 2016-08-24 | 中国重汽集团济南动力有限公司 | Power supply system of heavy-duty car SCR system |
| CN108988471A (en) * | 2018-07-12 | 2018-12-11 | 广西柳工机械股份有限公司 | Power supply control circuit of engine control module |
| CN108988471B (en) * | 2018-07-12 | 2022-05-13 | 广西柳工机械股份有限公司 | Power supply control circuit of engine control module |
| CN112835314A (en) * | 2021-01-04 | 2021-05-25 | 东风汽车股份有限公司 | Fire engine time delay outage control system |
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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 |
Granted publication date: 20140430 |
|
| CX01 | Expiry of patent term |