CN215833316U - Urea quality detection sensor - Google Patents
Urea quality detection sensor Download PDFInfo
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- CN215833316U CN215833316U CN202121427479.9U CN202121427479U CN215833316U CN 215833316 U CN215833316 U CN 215833316U CN 202121427479 U CN202121427479 U CN 202121427479U CN 215833316 U CN215833316 U CN 215833316U
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Abstract
The utility model discloses a urea quality detection sensor, which comprises: the shell is arranged in the urea box, the upper end of the shell is provided with an opening, and one side of the shell is provided with a liquid inlet; a cover for sealing the housing; a measuring device fixedly disposed inside the housing; the filter tank is communicated with the liquid inlet of the shell so as to filter an ice-water mixture contained in the urea tank; the water pump is arranged in the urea box and is respectively communicated with the interior of the urea box and the liquid inlet of the filter box; and the control device is electrically connected with the measuring device and the water pump respectively. According to the utility model, the urea in the urea box is sucked into the shell after the filtering box filters ice blocks and ice residues, so that the urea in the shell does not contain an ice-water mixture, and the concentration of the urea in the shell is measured by the measuring device, so that the interference of the ice-water mixture on the urea concentration detection is avoided, and the accuracy of the measuring result is ensured.
Description
Technical Field
The utility model relates to the technical field of automobile urea liquid detection. More specifically, the present invention relates to a urea quality detection sensor.
Background
The urea quality sensor is installed on a urea box of an automobile for use, and is mainly used for monitoring the quality of urea in the urea box, so that the quality of the urea is guaranteed, and the environmental pollution caused by the fact that automobile exhaust is treated by unqualified urea is prevented.
SUMMERY OF THE UTILITY MODEL
The utility model also aims to provide a urea quality detection sensor which is arranged inside a urea box, urea in the urea box is filtered by a filter box to remove ice blocks and ice residues and then is sucked into a shell, so that the urea inside the shell does not contain an ice-water mixture, and the concentration of the urea inside the shell is measured by a measuring device, so that the interference of the ice-water mixture on the urea concentration detection is avoided, and the accuracy of the measurement result is ensured.
To achieve these objects and other advantages in accordance with the purpose of the utility model, there is provided a urea quality detection sensor including:
the shell is of a box body structure with an opening at the upper end and a hollow interior, is fixedly arranged in the urea box and is communicated with the urea box through a one-way valve, and a liquid inlet is formed in one side of the shell;
a cover body disposed on the top of the case body and sealing an upper end opening thereof;
a measuring device fixedly arranged inside the housing, the measuring device being arranged for measuring the concentration of urea inside the housing;
the filter box is fixedly arranged in the urea box, a liquid outlet of the filter box is communicated with a liquid inlet of the shell, and the filter box is used for filtering an ice-water mixture contained in the urea box;
the water pump is fixedly arranged inside the urea box, a liquid inlet of the water pump is communicated with the inside of the urea box, and a liquid outlet of the water pump is communicated with a liquid inlet of the filter box;
and the control device is fixedly arranged in the urea box and is respectively and electrically connected with the measuring device and the water pump.
Preferably, be in along the feed liquor direction the inside of rose box is equipped with non-woven fabrics layer and active white soil layer in proper order, urea in the urea case passes in proper order the non-woven fabrics layer with behind the active white soil layer with the inlet intercommunication of casing.
Preferably, the measuring device includes:
the ultrasonic probe is arranged on one side of the shell and is electrically connected with the control device, and the ultrasonic emission direction of the ultrasonic probe is horizontally arranged;
the reflecting plate is arranged on one side, opposite to the ultrasonic probe, of the shell, and the reflecting plate is used for reflecting ultrasonic waves emitted by the ultrasonic probe.
Preferably, the ultrasonic probe is located at the bottom of the shell, and the liquid inlet of the shell is higher than the top of the ultrasonic probe.
Preferably, the sealing device further includes a sealing ring disposed along an outer periphery of the cover body and filling a gap between the cover body and the housing.
Preferably, still include the rubber pad, it sets up on the inner wall of urea case fixedly, the casing passes through the rubber pad with urea case is connected.
The utility model at least comprises the following beneficial effects: according to the utility model, the urea in the urea box is sucked into the shell after the filtering box filters ice blocks and ice residues, so that the urea in the shell does not contain an ice-water mixture, and the concentration of the urea in the shell is measured by the measuring device, so that the interference of the ice-water mixture on the urea concentration detection is avoided, and the accuracy of the measuring result is ensured.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic diagram of a urea quality detection sensor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the filter box in the above embodiment.
The specification reference numbers indicate:
1. the device comprises a shell, 2, a cover body, 3, an ultrasonic probe, 4, a reflecting plate, 5, a control device, 6, a urea box, 7, a water pump, 8, a filter box, 801, a non-woven fabric layer, 802, an active white soil layer, 9, a rubber pad, 10 and a liquid inlet of the shell.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the utility model by referring to the description text.
It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 2, the present invention provides a urea quality detection sensor including:
the device comprises a shell 1, a water tank and a water tank, wherein the shell 1 is of a box body structure with an opening at the upper end and a hollow interior, the shell 1 is fixedly arranged in a urea tank 6 and is communicated with the urea tank 6 through a one-way valve, and a liquid inlet is formed in one side of the shell 1;
a lid body 2 which is provided on the top of the case body 1 and seals an upper end opening thereof;
a measuring device fixedly arranged inside the housing 1, the measuring device being arranged for measuring the concentration of urea inside the housing 1;
the filter tank 8 is fixedly arranged inside the urea tank 6, a liquid outlet of the filter tank 8 is communicated with a liquid inlet of the shell 1, and the filter tank 8 is used for filtering ice-water mixture contained in urea in the urea tank 6;
the water pump 7 is fixedly arranged inside the urea box 6, a liquid inlet of the water pump 7 is communicated with the inside of the urea box 6, and a liquid outlet of the water pump 7 is communicated with a liquid inlet of the filter box 8;
and a control device 5 fixedly arranged inside the urea tank 6 and electrically connected with the measuring device and the water pump 7 respectively.
In the technical scheme, a urea quality detection sensor is arranged inside a urea box 6 before use, wherein a shell 1 is connected with the urea box 6, a cover body 2 arranged at the top of the shell 1 is used for sealing the shell 1 to prevent urea in the urea box 6 from entering the shell 1, meanwhile, when a measuring device or a control device 5 in the urea quality detection sensor needs to be replaced, the part needing to be replaced can be replaced by opening the cover body 2, a power supply and a control device are arranged outside the urea box 6, the power supply is electrically connected with the control device, the control device 5 and the measuring device, the control device is electrically connected with the control device 5 and the measuring device, the control device 5 is electrically connected with the measuring device and a water pump 7, the urea box 6, the water pump 7, a filter box 8 and the shell 1 are sequentially communicated, and urea is injected into the urea box 6 after preparation, meanwhile, the power supply starts external control equipment to work, and starts a measuring device and a water pump 7 to work through the control device 5, the water pump 7 absorbs urea in the urea box 6 and enters the shell 1 through a filter box 8 and a liquid inlet 10 of the shell, the measuring device in the shell 1 measures the concentration of the urea entering the shell 1, and feeds back the measured data to an external control device, the urea inside the housing 1 flows into the urea tank 6 again through the communication between the housing 1 and the urea tank 6, and the one-way valve at the communication between the urea tank 6 and the housing 1 prevents the urea in the urea tank 6 from flowing back to the inside of the housing 1 through the communication, the interference to the measurement result is caused, and the filter box 8 is used for filtering ice blocks and ice slag contained in the urea box 6, so that the interference to the urea concentration detection caused by the ice-water mixture entering the shell 1 is avoided.
In another technical scheme, a non-woven fabric layer 801 and an active white soil layer 802 are sequentially arranged inside the filter box 8 along the liquid inlet direction, and urea in the urea box 6 sequentially penetrates through the non-woven fabric layer 801 and the active white soil layer 802 and then is communicated with the liquid inlet of the shell 1.
In this technical scheme, non-woven fabrics layer 801 and active white soil layer 802 set gradually in the inside of rose box 8 along the inlet liquid direction, urea in urea case 6 passes through water pump 7 and extracts the back in rose box 8, at first filter the ice water mixture that contains in the urea through non-woven fabrics layer 801, insoluble substance in the urea is adsorbed to rethread active white soil layer 802, prevent that ice-cube and ice cinder and insoluble substance from entering into and influencing the measuring result in casing 1, guarantee the accuracy of measuring result, for preventing that the impurity in rose box 8 is too much to block up the circulation passageway of urea, can change rose box 8 regularly.
In another aspect, the measurement apparatus includes:
an ultrasonic probe 3 disposed on one side of the housing 1 and electrically connected to the control device 5, the ultrasonic probe 3 being disposed horizontally in an ultrasonic emission direction;
a reflection plate 4 provided on a side of the housing 1 opposite to the ultrasonic probe 3, the reflection plate 4 being provided for reflecting the ultrasonic wave emitted from the ultrasonic probe 3;
the ultrasonic probe 3 is positioned at the bottom of the shell 1, and the liquid inlet is higher than the top of the ultrasonic probe 3.
In the technical scheme, after urea in a urea box 6 enters the shell 1 through a filter box 8 and a liquid inlet on the shell 1 by a water pump 7, a power supply control device 5 works, the control device 5 controls a measuring device to measure the concentration of the urea in the shell 1, during measurement, the control device 5 controls an ultrasonic probe 3 to work, the ultrasonic probe 3 transmits ultrasonic waves to a reflecting plate 4 and then returns, the time spent by the ultrasonic waves in the fixed distance between the ultrasonic probe 3 and the reflecting plate 4 is obtained and transmitted to an external control equipment terminal for conversion and calculation of the concentration of the urea liquid, the ultrasonic probe 3 is positioned at the bottom of the shell 1 and is very close to the bottom surface of the urea box 6, so that when a vehicle drives the urea box 6 to incline in an inclined manner, the ultrasonic probe 3 can also output a measuring signal, and bubbles at the position close to the bottom surface of the urea are few, the influence of the bubbles on the measurement signals can be ignored, and the accuracy of the measurement data can be improved.
In another technical solution, the sealing device further includes a sealing ring disposed along an outer periphery of the cover 2 and filling a gap between the cover 2 and the housing 1.
In this technical scheme, the leakproofness between lid 2 and the casing 1 can be guaranteed to the sealing washer, when preventing that urea 6 interior urea from highly being higher than casing 1, the gap infiltration between casing 1 and the lid 2 is followed to urea, influences the measuring result of urea concentration.
In another technical scheme, the urea tank further comprises a rubber pad 9 fixedly arranged on the inner wall of the urea tank 6, and the shell 1 is connected with the urea tank 6 through the rubber pad 9.
In this technical scheme, casing 1 is connected with urea case 6 through rubber pad 9, receives when jolting at the vehicle, can play the buffering effect to urea quality detection sensor, reduces urea quality detection sensor because of the damage that vibrations caused, prolongs its life.
While embodiments of the utility model have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. A urea quality detection sensor, comprising:
the shell is of a box body structure with an opening at the upper end and a hollow interior, is fixedly arranged in the urea box and is communicated with the urea box through a one-way valve, and a liquid inlet is formed in one side of the shell;
a cover body disposed on the top of the case body and sealing an upper end opening thereof;
a measuring device fixedly arranged inside the housing, the measuring device being arranged for measuring the concentration of urea inside the housing;
the filter box is fixedly arranged in the urea box, a liquid outlet of the filter box is communicated with a liquid inlet of the shell, and the filter box is used for filtering an ice-water mixture contained in the urea box;
the water pump is fixedly arranged inside the urea box, a liquid inlet of the water pump is communicated with the inside of the urea box, and a liquid outlet of the water pump is communicated with a liquid inlet of the filter box;
and the control device is fixedly arranged in the urea box and is respectively and electrically connected with the measuring device and the water pump.
2. The urea quality detection sensor according to claim 1, wherein a non-woven fabric layer and an active white soil layer are sequentially arranged inside the filter box along a liquid inlet direction, and urea in the urea box sequentially passes through the non-woven fabric layer and the active white soil layer and then is communicated with the liquid inlet of the shell.
3. The urea quality detection sensor according to claim 1, wherein the measuring device includes:
the ultrasonic probe is arranged on one side of the shell and is electrically connected with the control device, and the ultrasonic emission direction of the ultrasonic probe is horizontally arranged;
the reflecting plate is arranged on one side, opposite to the ultrasonic probe, of the shell, and the reflecting plate is used for reflecting ultrasonic waves emitted by the ultrasonic probe.
4. The urea quality detection sensor of claim 3, wherein the ultrasonic probe is located at the bottom of the housing, and the liquid inlet of the housing is located at a position higher than the top of the ultrasonic probe.
5. The urea quality detection sensor according to claim 1, further comprising a seal ring that is provided along an outer periphery of the cover and fills a gap between the cover and the housing.
6. The urea quality detecting sensor according to claim 1, further comprising a rubber pad fixedly disposed on an inner wall of the urea tank, wherein the housing is connected to the urea tank through the rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121427479.9U CN215833316U (en) | 2021-06-25 | 2021-06-25 | Urea quality detection sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121427479.9U CN215833316U (en) | 2021-06-25 | 2021-06-25 | Urea quality detection sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215833316U true CN215833316U (en) | 2022-02-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121427479.9U Active CN215833316U (en) | 2021-06-25 | 2021-06-25 | Urea quality detection sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215833316U (en) |
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2021
- 2021-06-25 CN CN202121427479.9U patent/CN215833316U/en active Active
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