CN110779986A - Be applied to two probes of urea quality sensor - Google Patents
Be applied to two probes of urea quality sensor Download PDFInfo
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- CN110779986A CN110779986A CN201911076000.9A CN201911076000A CN110779986A CN 110779986 A CN110779986 A CN 110779986A CN 201911076000 A CN201911076000 A CN 201911076000A CN 110779986 A CN110779986 A CN 110779986A
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- Prior art keywords
- probe
- quality sensor
- urea quality
- urea
- sensor according
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
- F01N2900/1806—Properties of reducing agent or dosing system
- F01N2900/1818—Concentration of the reducing agent
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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 invention relates to a double-probe applied to a urea quality sensor, which comprises the urea quality sensor, wherein a detection assembly is arranged at the bottom of the urea quality sensor, the detection assembly comprises a shell, a first probe and a second probe are arranged on the shell, a reflecting plate is arranged in front of the first probe and the second probe and is connected with the shell through a structural part, the first probe and the second probe are respectively connected with a data line, and the data line is connected with a control device. The invention adopts the double probes to carry out mutual checking and self-learning on the two groups of data, thereby improving the test stability of the product, reducing the defects of erroneous judgment and the like and effectively improving the robustness of the product.
Description
Technical Field
The invention belongs to the technical field of detection equipment, and particularly relates to a double-probe applied to a urea quality sensor.
Background
The urea quality sensor is a product used on a commercial truck, and because the sensor works in the environments of high temperature, low temperature, vibration and the like for a long time, the strength requirement of each part of the urea quality sensor is high, in particular to a probe of the urea quality sensor, for which the detection accuracy requirement is very high, 201620383558.7 discloses a urea quality sensor integrating urea quality detection, which mainly detects the quality of urea in a urea box, ensures the quality of the urea, realizes the high-efficiency treatment of the urea on vehicle tail gas, effectively prevents the environmental pollution caused by the unqualified urea treatment of the vehicle tail gas, the urea quality sensor mostly adopts a single-probe ultrasonic scheme or an infrared test scheme to measure the urea quality, and the single-probe ultrasonic scheme has the problems of unstable data, easy misjudgment and the like.
Disclosure of Invention
In view of the problems in the prior art, the present invention is directed to a dual probe for a urea quality sensor to solve the above-mentioned problems.
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides a be applied to two probes of urea quality sensor, includes urea quality sensor, urea quality sensor bottom is provided with detection assembly, detection assembly includes the casing, is provided with probe one and probe two on the casing, and the place ahead of probe one and probe two is provided with the reflecting plate, and the reflecting plate passes through the structure to be connected with the casing, and probe one and probe two link to each other with the data line respectively, and the data line is connected with controlling means.
Preferably, at least one of the first probe and the second probe is an ultrasonic probe.
In any of the above solutions, preferably, the reflecting plate is provided with a fixing hole, and the structural member passes through the fixing hole to be detachably connected with the casing.
In any of the above embodiments, the structural element is preferably screwed to the housing.
In any of the above embodiments, it is preferable that at least two fixing holes are provided.
In any of the above embodiments, preferably, at least two structural members are provided, and the structural members are respectively provided corresponding to the fixing holes.
In any of the above embodiments, the first probe and the second probe are preferably mounted symmetrically to each other on the housing.
In any of the above schemes, preferably, the housing is provided with two accommodating grooves, and the first probe and the second probe are respectively installed in the accommodating grooves.
In any of the above schemes, preferably, the top end of the urea quality sensor is provided with an injection molding head, and the control device is connected with the injection molding head.
In any of the above schemes, preferably, the injection molding rubber head is provided with a urea return port, a urea absorption port, a water inlet and a water outlet.
In any of the above schemes, preferably, the urea quality sensor further comprises a heating water pipe, and the heating water pipe is connected with the injection molding rubber head.
In any of the above embodiments, the structural element (6) is preferably a fastening rod or an injection-molded part.
In any of the above schemes, preferably, the fixing rod is made of metal.
In any of the above schemes, preferably, the control device (8) is a transceiver chip, receives signals sent by the probe through data line connection and calculates to obtain concentration information of the urea solution, and sends information obtained by testing to the vehicle ECU through the chip according to a J1939CAN communication protocol.
In any of the above aspects, it is preferable that the transmission frequency of the ultrasonic probe is 2 MHz.
Compared with the prior art, the invention has the advantages that:
the invention adopts the double probes to carry out mutual checking and self-learning on two groups of data, thereby improving the test stability of the product, reducing the defects of misjudgment and the like, and effectively improving the robustness of the product.
Drawings
FIG. 1 is a schematic structural view of a detecting unit according to the present invention;
FIG. 2 is a schematic view of a matching structure of a reflection plate, a first probe and a second probe in the detection assembly of the invention;
FIG. 3 is a schematic diagram of a urea quality sensor according to the present invention.
The reference numbers in the figures illustrate:
1. the urea quality sensor comprises a urea quality sensor 2, a shell 3, probes I and I, probes II and II, 5, a reflecting plate 6, a structural member 7, a plastic injection head 8, a control device 9, a urea return port 10, a urea sucking port 11, a water inlet 12, a water outlet 13 and a heating water pipe.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Example 1:
referring to fig. 1-3, a double-probe applied to a urea quality sensor comprises a urea quality sensor 1, a detection assembly is arranged at the bottom of the urea quality sensor 1, the detection assembly comprises a shell 2, a first probe 3 and a second probe 4 are arranged on the shell 2, a reflecting plate 5 is arranged in front of the first probe 3 and the second probe 4, the reflecting plate 5 is connected with the shell 2 through a structural member 6, the first probe 3 and the second probe 4 are respectively connected with a data line, and the data line is connected with a control device 8.
In this embodiment, in order to better use the first probe 3 and the second probe 4, at least one of the first probe 3 and the second probe 4 is an ultrasonic probe, and the urea concentration in the liquid can be well detected by ultrasonic waves.
In the embodiment, for better use of the reflection plate 5, the reflection plate 5 is provided with a fixing hole, and the structural member 6 passes through the fixing hole to be detachably connected with the shell 2, so that the reflection plate is convenient to detach and mount.
In this embodiment, the structural member 6 is screwed to the housing 2 for better attachment of the structural member to the housing, facilitating removal and installation thereof.
In this embodiment, in order to better connect the reflection plate 5 and the housing 2, at least two fixing holes are provided, and at least two fixing holes are provided, so that the matching structural member 6 can more firmly connect the reflection plate 5 and the housing 2.
In this embodiment, for better use of the structural members 6, at least two structural members 6 are provided, and are respectively disposed corresponding to the fixing holes, so that the reflective plate and the housing 2 can be better connected through the plurality of structural members 6 and the plurality of fixing holes.
In this embodiment, for better installation probe 3 and probe two 4, the installation that the mutual symmetry is each other on casing 2 for probe 3 and probe two 4, can be better detect the urea concentration in the liquid with its symmetry installation for its feedback angle is the same, can not appear the deviation.
In this embodiment, for better installation probe one 3 and probe two 4, be provided with two holding tanks on the casing 2, probe one 3 and probe two 4 are installed respectively in the holding tank, install it can be better protect probe one 3 and probe two 4 in the holding tank.
In this embodiment, for better use urea quality sensor 1, urea quality sensor 1 top is provided with injection molding rubber head 7, and controlling means 8 links to each other with injection molding rubber head 7, has made things convenient for the staff to use.
In this embodiment, in order to better use the injection molding head 7, the injection molding head 7 is provided with a urea return port 9, a urea absorption port 10, a water inlet 11 and a water outlet 12, and water and urea liquid can be better discharged and absorbed through the urea return port 9, the urea absorption port 10, the water inlet 11 and the water outlet 12.
In this embodiment, for better use of the urea quality sensor 1, the urea quality sensor 1 further includes a heating water pipe 13, the heating water pipe 13 is connected to the injection molding rubber head 7, and hot water can be well delivered through the heating water pipe 13.
In this embodiment, the structural member 6 is a fixing rod or an injection molded member, and the reflecting plate 5 and the housing 2 can be more firmly connected by the fixing rod for better use of the structural member.
In this embodiment, for better use dead lever, the material of dead lever is the metal for it is more firm in the use, and preferred material is stainless steel material, makes it can not appear rusty condition in the use.
In this embodiment, in order to better use the control device, the control device 8 is a transceiver chip, receives a signal sent by the probe through the data line connection, and performs calculation to obtain the concentration information of the urea solution, and sends the information obtained by the test to the ECU of the whole vehicle according to the J1939CAN communication protocol through the chip.
In this embodiment, in order to better use the ultrasonic probe, the transmitting frequency of the ultrasonic probe is 2MHz, and various pieces of information can be better detected by the ultrasonic probe.
Example 2:
based on the embodiment 1, the working principle of the ultrasonic probe is that the probe converts electric energy into mechanical vibration, so that emitted sound waves are transmitted in liquid, the sound waves return after encountering a reflecting surface, and the first probe 3 and the second probe 4 receive reflected wave information. And the concentration of the used urea is confirmed according to the receiving and sending time, the ultrasonic probe is connected with the control module, and the control device 8 drives the first probe 3 and the second probe 4 to send out sound waves through electric energy.
In addition, through the design of the double probes, the two probes independently send ultrasonic waves to test in the using process, and interactive correction learning is carried out through logical operation in the using process, so that the testing precision and stability of the product are guaranteed, and the durability of the product is improved.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides a be applied to two probes of urea quality sensor, includes urea quality sensor (1), its characterized in that, urea quality sensor (1) bottom is provided with detection module, detection module includes casing (2), is provided with probe (3) and probe two (4) on casing (2), and the place ahead of probe (3) and probe two (4) is provided with reflecting plate (5), and reflecting plate (5) are connected with casing (2) through structure (6), and probe (3) and probe two (4) link to each other with the data line respectively, and the data line is connected with controlling means (8).
2. The dual probe for a urea quality sensor according to claim 1, wherein: at least one of the first probe (3) and the second probe (4) is an ultrasonic probe.
3. The dual probe for a urea quality sensor according to claim 1, wherein: the reflecting plate (5) is provided with a fixing hole, and the structural part (6) penetrates through the fixing hole to be detachably connected with the shell (2).
4. The dual probe for a urea quality sensor according to claim 1, wherein: the structural member (6) is in threaded connection with the shell (2).
5. The dual probe for a urea quality sensor according to claim 3, wherein: the fixed orifices are provided with two at least, and the fixed orifices is provided with two at least.
6. The dual probe for a urea quality sensor according to claim 5, wherein: the structure parts (6) are at least two and are respectively arranged corresponding to the fixing holes.
7. The dual probe for a urea quality sensor according to any one of claims 1-6, wherein: the first probe (3) and the second probe (4) are respectively and symmetrically arranged on the shell (2).
8. The dual probe for a urea quality sensor according to claim 7, wherein: two accommodating grooves are formed in the shell (2), and the first probe (3) and the second probe (4) are respectively installed in the accommodating grooves.
9. The dual probe for a urea quality sensor according to claim 1, wherein: the top end of the urea quality sensor (1) is provided with a plastic injection head (7), and a control device (8) is connected with the plastic injection head (7).
10. The dual probe for a urea quality sensor as claimed in claim 9, wherein: the injection head (7) is provided with a urea return port (9), a urea absorption port (10), a water inlet (11) and a water outlet (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076000.9A CN110779986A (en) | 2019-11-06 | 2019-11-06 | Be applied to two probes of urea quality sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911076000.9A CN110779986A (en) | 2019-11-06 | 2019-11-06 | Be applied to two probes of urea quality sensor |
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| Publication Number | Publication Date |
|---|---|
| CN110779986A true CN110779986A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911076000.9A Pending CN110779986A (en) | 2019-11-06 | 2019-11-06 | Be applied to two probes of urea quality sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718709A (en) * | 2022-05-19 | 2022-07-08 | 江铃汽车股份有限公司 | Control method for output signal of automobile urea quality sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1637414A (en) * | 2004-01-07 | 2005-07-13 | 高翔 | Ultrasonic detection type automatic storage tank dewatering method and apparatus |
| CN102713603A (en) * | 2009-12-21 | 2012-10-03 | 维玛系统公司 | Quality sensor apparatus |
| CN105044027A (en) * | 2014-04-23 | 2015-11-11 | 保险丝公司 | Urea concentration sensor |
| US20180356326A1 (en) * | 2015-12-09 | 2018-12-13 | Flolevel Technologies Pty Ltd | System and method for determining concentration |
-
2019
- 2019-11-06 CN CN201911076000.9A patent/CN110779986A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1637414A (en) * | 2004-01-07 | 2005-07-13 | 高翔 | Ultrasonic detection type automatic storage tank dewatering method and apparatus |
| CN102713603A (en) * | 2009-12-21 | 2012-10-03 | 维玛系统公司 | Quality sensor apparatus |
| CN105044027A (en) * | 2014-04-23 | 2015-11-11 | 保险丝公司 | Urea concentration sensor |
| US20180356326A1 (en) * | 2015-12-09 | 2018-12-13 | Flolevel Technologies Pty Ltd | System and method for determining concentration |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718709A (en) * | 2022-05-19 | 2022-07-08 | 江铃汽车股份有限公司 | Control method for output signal of automobile urea quality sensor |
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