CN212931570U - Liquid sensor and urea case - Google Patents
Liquid sensor and urea case Download PDFInfo
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- CN212931570U CN212931570U CN202022011924.5U CN202022011924U CN212931570U CN 212931570 U CN212931570 U CN 212931570U CN 202022011924 U CN202022011924 U CN 202022011924U CN 212931570 U CN212931570 U CN 212931570U
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- detection assembly
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Abstract
The utility model relates to a urea case technical field discloses a liquid sensor and urea case, and liquid sensor includes: the temperature liquid level detection assembly is provided with a first connecting port; and the concentration detection assembly is provided with a second connecting port, the second connecting port is in butt joint with the first connecting port, and a driving assembly and a signal transmission line of the concentration detection assembly are integrated on the temperature liquid level detection assembly or penetrate out of the temperature liquid level detection assembly and are connected with the driving assembly of the concentration detection assembly. The driving assembly and the signal transmission line of the concentration detection assembly of the liquid sensor are integrated on the temperature liquid level detection assembly, or the signal transmission line of the concentration detection assembly penetrates out of the temperature liquid level detection assembly and is connected with the driving assembly of the concentration detection assembly, so that the installation is simplified, and the required application space is reduced; and the detection failure of the temperature liquid level detection assembly can be avoided.
Description
Technical Field
The utility model relates to a urea case technical field especially relates to a liquid sensor and urea case.
Background
The urea reacts with the tail gas of the diesel engine to achieve the aim of reducing the emission of harmful gas. It is desirable to have a urea injection system that includes storage, electrical control, detection, injection, etc. Wherein the liquid sensor is a core part thereof. The liquid sensor is a core component which can detect the storage, temperature or concentration of urea, unfreeze the urea in cold regions and extract the urea.
At present, most of the existing similar products are generally adopted that a temperature detection component and a liquid level detection component are integrated in the same detection tube to form a temperature liquid level detection component, and a concentration detection component and the temperature liquid level detection component belong to independent systems, so that two driving and signal transmission channels are determined, the structure is complex, the application volume is large, and more parts are needed; moreover, the PA pipe is mostly adopted in the concentration sensor driving and signal transmission channel, and the condition that the liquid level detection fails sometimes happens due to interference of position change and a floater for detecting the water level in the using process in a limited space.
Therefore, there is a need to design a liquid sensor that can solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a liquid sensor and urea case has solved current concentration detection subassembly and temperature liquid level detection subassembly and has belonged to independent system and lead to the structure complicated, and the spare part is many, uses bulky, avoids the technical problem of liquid level detection inefficacy.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a liquid sensor, include:
the temperature liquid level detection assembly is provided with a first connecting port; and
the concentration detection assembly is provided with a second connecting port, the second connecting port is connected with the first connecting port in a butt joint mode, a driving assembly and a signal transmission line of the concentration detection assembly are integrated on the temperature liquid level detection assembly, or the signal transmission line of the concentration detection assembly penetrates out of the temperature liquid level detection assembly and is connected with the driving assembly of the concentration detection assembly.
The temperature liquid level detection assembly and the concentration detection assembly of the liquid sensor are in butt joint connection through the first connecting port and the second connecting port, so that the temperature liquid level detection assembly and the concentration detection assembly are installed into a whole, a driving assembly and a signal transmission line of the concentration detection assembly are integrated on the temperature liquid level detection assembly, or a signal transmission line of the concentration detection assembly penetrates out of the temperature liquid level detection assembly and is connected with the driving assembly of the concentration detection assembly, and therefore installation is simplified, the required application space is reduced, and production cost is reduced; and the drive and signal transmission channel of the concentration detection assembly is cancelled, so that the interference between the drive and signal transmission channel of the concentration detection assembly and the temperature liquid level detection assembly caused by the independent arrangement of the concentration detection assembly is avoided, and further the detection failure of the temperature liquid level detection assembly is avoided.
As a preferable aspect of the above liquid sensor, the temperature liquid level detection module includes:
the liquid level detector comprises a guide pipe, a circuit board and a plurality of magnetic reed pipes arranged on the circuit board are arranged in the guide pipe, and a magnetic floater capable of moving up and down is sleeved outside the guide pipe; and
and the temperature detector is arranged at the bottom end of the circuit board.
The liquid level detector of the temperature liquid level detection assembly realizes the detection of the liquid level through the matching of the magnetic reed pipe in the guide pipe and the magnetic floater; the temperature detector is arranged at the bottom end of the circuit board and can detect the temperature of liquid.
As a preferable scheme of the above liquid sensor, the driving component is integrated at the bottom of the circuit board, and the concentration sensor in the concentration detection component is connected to the driving component through the signal transmission line.
The drive assembly is integrated in the bottom of circuit board, and the concentration sensor in the concentration detection subassembly passes through signal transmission line and links to each other with the drive assembly, need not to set up drive and signal transmission passageway alone, and then realizes that the drive assembly and the signal transmission line of concentration detection subassembly are integrated on temperature liquid level detection subassembly, reduce occupation space.
As a preferable scheme of the liquid sensor, the signal transmission line of the concentration detection assembly is arranged in the guide pipe in a penetrating manner and penetrates out of the guide pipe.
The signal transmission line of the concentration detection assembly penetrates through the guide pipe and penetrates out of the guide pipe, so that the concentration detection assembly does not need to be provided with a signal transmission channel independently, and the occupied space of the liquid level sensor is reduced.
As a preferable scheme of the above liquid sensor, a first tube is disposed in the guide tube, the circuit board and the magnetic reed tube are both disposed in the first tube, and the signal transmission line is disposed outside the first tube.
The arrangement of the first tube has a protection effect on the circuit board and the magnetic reed tube, and the phenomenon of short circuit between the circuit board and the signal transmission line is avoided.
In a preferred embodiment of the liquid sensor, the first pipe is provided with an avoidance space recessed in the first pipe along a longitudinal direction thereof, and the signal transmission line is provided in the avoidance space.
The first pipe is provided with an avoiding space towards the inner groove of the first pipe along the length direction of the first pipe, so that the signal transmission line is arranged in the avoiding space, the diameter of the guide pipe is reduced, and the volume of the liquid sensor is further reduced.
As a preferable scheme of the above liquid sensor, the concentration detection assembly includes a sensor base, the sensor base is provided with the first connection port, the bottom of the temperature liquid level detection assembly is provided with a sleeve, and the sleeve is installed in the sensor base.
The temperature liquid level detection assembly can be installed in a sensor base of the concentration detection assembly through the sleeve, and installation is convenient.
As a preferable mode of the liquid sensor, a seal ring is provided between the sleeve and the sensor base.
Be provided with the sealing washer between sleeve and the sensor base, can play sealed effect through the sealing washer, prevent the liquid seepage.
As a preferable aspect of the above liquid sensor, the concentration detection module and the temperature liquid level detection module are connected by a connection structure, and the connection structure includes:
the first connecting part is arranged at one end of the concentration detection assembly, which is provided with the first connecting port; and
and the second connecting part is sleeved on the temperature liquid level detection assembly, and the second connecting part is connected with the first connecting part through a fixing part so as to connect the concentration detection assembly with the temperature liquid level detection assembly.
The concentration detection assembly and the temperature liquid level detection assembly can be stably connected through the connecting structure.
The utility model also provides a urea case, including foretell liquid sensor. This urea case detects the temperature, liquid level and the concentration of the urea in the urea case through foretell liquid sensor, and liquid sensor's volume is less, can hold more urea solution.
The utility model has the advantages that:
the utility model provides a liquid sensor, temperature liquid level detection subassembly and concentration detection subassembly link to each other through first connection port and second connection port butt joint to install temperature liquid level detection subassembly and concentration detection subassembly as a whole, concentration detection subassembly's drive assembly and signal transmission route are integrated on temperature liquid level detection subassembly, or concentration detection subassembly's signal transmission line wears out through temperature liquid level detection subassembly to link to each other with concentration detection subassembly's drive assembly, thereby simplified the installation, reduce the demand application space, reduced manufacturing cost; and the drive and signal transmission channel of the concentration detection assembly is cancelled, so that the interference between the drive and signal transmission channel of the concentration detection assembly and the temperature liquid level detection assembly caused by the independent arrangement of the concentration detection assembly is avoided, and further the detection failure of the temperature liquid level detection assembly is avoided.
The utility model provides a urea box, including foretell liquid sensor. This urea case detects the temperature, liquid level and the concentration of the urea in the urea case through foretell liquid sensor, and liquid sensor's volume is less, can hold more urea solution.
Drawings
Fig. 1 is a cross-sectional view of a liquid sensor according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at B;
fig. 3 is a cross-sectional view of a liquid sensor provided in the second embodiment of the present invention;
fig. 4 is a cross-sectional view of a guide tube according to a second embodiment of the present invention.
In the figure:
1. a temperature liquid level detection assembly; 10. a first connection port; 11. a liquid level detector;
111. a guide tube; 112. a circuit board; 113. a magnetic reed pipe; 114. a magnetic float; 115. a first tube; 116. avoiding a space; 12. a temperature detector; 13. a sleeve; 131. a ring groove; 132. a seal ring; 133. a convex hull;
2. a concentration detection assembly; 20. a second connection port; 21. a drive assembly; 22. a signal transmission line; 24. a sensor base;
3. a connecting structure; 31. a first connection portion; 32. a second connecting portion; 33. and a fixing member.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The first embodiment is as follows:
the embodiment provides a urea case, including the box and set up the liquid sensor in the box, the box is used for holding urea solution, and liquid sensor is used for detecting urea solution's temperature, liquid level and concentration etc. because liquid sensor's volume is less, can hold more urea solutions.
Specifically, as shown in fig. 1 and 2, the liquid sensor includes a temperature liquid level detection assembly 1 and a concentration detection assembly 2, a first connection port 10 is provided on the temperature liquid level detection assembly 1, a second connection port 20 is provided on the concentration detection assembly 2, the second connection port 20 is connected with the first connection port 10 in a butt joint manner, so that the temperature liquid level detection assembly 1 and the concentration detection assembly 2 are installed into a whole, and a driving assembly 21 and a signal transmission line 22 of the concentration detection assembly 2 are integrated on the temperature liquid level detection assembly 1, so that the installation is simplified, the required application space is reduced, and the production cost is reduced; and the drive and signal transmission channel of the concentration detection component is cancelled, so that the interference between the drive and signal transmission channel of the concentration detection component and the temperature liquid level detection component 1 is avoided, and the detection failure of the temperature liquid level detection component 1 is avoided. In this embodiment, the end of the temperature and liquid level detecting assembly 1 provided with the first connection port 10 is inserted into the second connection port 20.
Further, temperature liquid level detection subassembly 1 includes liquid level detector 11 and temperature detector 12, liquid level detector 11 includes stand pipe 111, be provided with circuit board 112 in the stand pipe 111 and set up a plurality of magnetic reed pipe 113 on circuit board 112, a plurality of magnetic reed pipe 113 sets up along the direction of height interval of circuit board 112, the outside cover of stand pipe 111 is equipped with the magnetic float 114 that can reciprocate, liquid level detector 11 realizes the detection of liquid level through the cooperation of magnetic reed pipe 113 in the stand pipe 111 and magnetic float 114. Specifically, the magnetic float 114 floats on the liquid level of the urea solution, and when the liquid level of the urea solution changes, the magnetic float 114 magnetically senses with the corresponding magnetic reed pipe 113 to detect the current liquid level of the urea solution. Wherein the circuit board 112 is a PCB board.
The temperature detector 12 is disposed at the bottom end of the circuit board 112 to detect the temperature of the urea solution. The structure of the temperature detector 12 is prior art and will not be described in detail herein.
The drive assembly 21 is integrated at the bottom of the circuit board 112, and the concentration sensor in the concentration detection assembly 2 is connected with the drive assembly 21 through the signal transmission line 22, so that a drive and signal transmission channel does not need to be separately arranged, and further the drive assembly 21 and the signal transmission line 22 of the concentration detection assembly 2 are integrated on the temperature liquid level detection assembly 1, and the occupied space is reduced.
The concentration detection assembly 2 comprises a sensor base 24, a first connecting port 10 is arranged on the sensor base 24, a sleeve 13 is arranged at the bottom of the temperature liquid level detection assembly 1, and the sleeve 13 is arranged in the sensor base 24. The temperature liquid level detection assembly 1 can be installed in the sensor base 24 of the concentration detection assembly 2 through the sleeve 13, and installation is convenient.
Optionally, an annular groove 131 is provided on the circumferential side wall of the sleeve 13, a sealing ring 132 is provided in the annular groove 131, and the sealing ring 132 is respectively abutted against the groove bottom of the annular groove 131 and the sensor base 24. Set up annular groove 131 on the circumference lateral wall of sleeve 13, can be convenient for carry on spacingly to sealing washer 132, prevent that the position of sealing washer 132 from taking place the skew, sealing washer 132 respectively with the tank bottom of annular groove 131 and sensor base 24 looks butt, play sealed effect.
Because concentration detection subassembly 2 and temperature liquid level detection subassembly 1 are integrated structure as an organic whole, concentration detection subassembly 2's drive assembly 21 and signal transmission line 22 are integrated on temperature liquid level detection subassembly 1, only need seal one set of route and can prevent the liquid seepage, and for concentration detection subassembly and temperature liquid level detection subassembly independent setting among the prior art, need seal two corresponding drive and signal transmission passageway, reduce the risk of liquid seepage.
Specifically, the first connecting portion 31 is disposed on the sensor base 24, the first connecting portion 31 is two lugs disposed on two sides of the sensor base 24, threaded holes are disposed on the lugs, through holes are correspondingly disposed on the second connecting portion 32, and the fixing member 33 passes through the through holes to connect with the corresponding threaded holes, so as to connect the first connecting portion 31 and the second connecting portion 32. The fixing member 33 is a screw.
Further, a step groove is formed in the sleeve 13 of the temperature liquid level detection assembly 1, the second connecting portion 32 is sleeved on the concentration detection assembly 2, and when the second connecting portion 32 is connected with the first connecting portion 31, the second connecting portion 32 abuts against the step groove, so that the temperature liquid level detection assembly 1 is connected with the concentration detection assembly 2.
Example two:
in the present embodiment, a liquid sensor is provided, and the difference between the liquid sensor in the present embodiment and the liquid sensor in the first embodiment is that the driving component 21 and the signal transmission line 22 of the concentration detection component 2 in the liquid sensor in the first embodiment are integrated on the temperature liquid level detection component 1, and in the present embodiment, as shown in fig. 3 and 4, the signal transmission line 22 of the concentration detection component 2 penetrates out through the temperature liquid level detection component 1 and is connected with the driving component 21 of the concentration detection component 2, so that the installation of the liquid sensor can be simplified, the required application space is reduced, and the production cost is reduced; and the drive and signal transmission channel of the concentration detection component 2 is cancelled, so that the interference between the drive and signal transmission channel of the concentration detection component 2 and the temperature liquid level detection component 1 is avoided, and the detection failure of the temperature liquid level detection component 1 is avoided.
Specifically, the signal transmission line 22 of the concentration detection assembly 2 is arranged in the guide tube 111 in a penetrating manner and is penetrated out from the guide tube 111, so that the concentration detection assembly 2 does not need to be provided with a driving channel and a signal transmission channel independently, and the occupied space of the liquid level sensor is reduced.
The guide tube 111 is internally provided with a first tube 115, the circuit board 112 and the magnetic reed tube 113 are both arranged in the first tube 115, and the signal transmission line 22 is arranged outside the first tube 115. The first tube 115 protects the circuit board 112 and the magnetic reed 113 from short-circuiting with the signal transmission line 22.
Preferably, an evacuation space 116 recessed into the first tube 115 is provided in the first tube 115 along the longitudinal direction thereof, and the signal transmission line 22 is provided in the evacuation space 116. An avoiding space 116 is provided on the first tube 115 along the longitudinal direction thereof, and is recessed into the first tube 115, so that the signal transmission line 22 is disposed in the avoiding space 116, thereby reducing the diameter of the guide tube 111 and further reducing the volume of the liquid sensor.
The concentration detection assembly 2 comprises a sensor base 24, a first connecting port 10 is arranged on the sensor base 24, a sleeve 13 is arranged at the bottom of the temperature liquid level detection assembly 1, and the sleeve 13 is arranged in the sensor base 24. The temperature liquid level detection assembly 1 can be arranged on a sensor base 24 of the concentration detection assembly 2 through the sleeve 13, and the installation is convenient.
Further, the sleeve 13 of the temperature liquid level detection assembly 1 is provided with a convex hull 133, the convex hull 133 protrudes along the radial direction of the sleeve 13, the second connection portion 32 is sleeved on the concentration detection assembly 2, and when the second connection portion 32 is connected with the first connection portion 31, the second connection portion 32 abuts against the convex hull 133, so that the temperature liquid level detection assembly 1 cannot move.
Optionally, the sleeve 13 and the sensor base 24 are provided with a sealing ring 132, a retaining ring is sleeved below the convex hull 133, the sealing ring 132 is disposed below the retaining ring, and the sealing ring 132 abuts against the sleeve 13 and the sensor base 24 respectively to perform a sealing function, so as to prevent the urea solution from entering the concentration detection assembly 2 from the joint of the first connection port 10 and the second connection port 20.
In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in a descriptive sense or positional relationship based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A liquid sensor, comprising:
the temperature liquid level detection assembly (1), wherein a first connecting port (10) is arranged on the temperature liquid level detection assembly (1); and
concentration detection subassembly (2), be provided with second connection port (20) on concentration detection subassembly (2), second connection port (20) with first connection port (10) butt joint links to each other, drive assembly (21) and signal transmission line (22) of concentration detection subassembly (2) integrate in on temperature liquid level detection subassembly (1), perhaps signal transmission line (22) via of concentration detection subassembly (2) temperature liquid level detection subassembly (1) is worn out, and with drive assembly (21) of concentration detection subassembly (2) link to each other.
2. The liquid sensor according to claim 1, characterized in that the temperature level detection assembly (1) comprises:
the liquid level detector (11) comprises a guide pipe (111), a circuit board (112) and a plurality of magnetic reed pipes (113) arranged on the circuit board (112) are arranged in the guide pipe (111), and a magnetic floater (114) capable of moving up and down is sleeved on the outer side of the guide pipe (111); and
and the temperature detector (12) is arranged at the bottom end of the circuit board (112).
3. The liquid sensor according to claim 2, characterized in that the driving assembly (21) is integrated on the bottom of the circuit board (112), and the concentration sensor in the concentration detection assembly (2) is connected with the driving assembly (21) through the signal transmission line (22).
4. The liquid sensor according to claim 2, characterized in that the signal transmission line (22) of the concentration detection assembly (2) is arranged in the guide tube (111) in a penetrating way and is penetrated out of the guide tube (111).
5. The liquid sensor according to claim 4, wherein a first tube (115) is disposed in the guide tube (111), the circuit board (112) and the magnet reed tube (113) are both disposed in the first tube (115), and the signal transmission line (22) is disposed outside the first tube (115).
6. The liquid sensor according to claim 5, wherein an avoidance space (116) recessed toward the inside of the first tube (115) is provided in the first tube (115) along the longitudinal direction thereof, and the signal transmission line (22) is provided in the avoidance space (116).
7. A liquid sensor according to any one of claims 1-6, characterized in that the concentration detection assembly (2) comprises a sensor base (24), the first connection port (10) is arranged on the sensor base (24), a sleeve (13) is arranged at the bottom of the temperature liquid level detection assembly (1), and the sleeve (13) is mounted in the sensor base (24).
8. A liquid sensor according to claim 7, characterized in that a sealing ring (132) is arranged between the sleeve (13) and the sensor base (24).
9. A liquid sensor according to any one of claims 1-6, wherein the concentration detection assembly (2) and the temperature liquid level detection assembly (1) are connected by a connection structure (3), the connection structure (3) comprising:
a first connection portion (31) provided at one end of the concentration detection assembly (2) at which the first connection port (10) is provided; and
second connecting portion (32), the cover is established on temperature liquid level detection subassembly (1), second connecting portion (32) through mounting (33) with first connecting portion (31) link to each other, with will concentration detection subassembly (2) with temperature liquid level detection subassembly (1) links to each other.
10. A urea tank comprising a liquid sensor according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022011924.5U CN212931570U (en) | 2020-09-15 | 2020-09-15 | Liquid sensor and urea case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022011924.5U CN212931570U (en) | 2020-09-15 | 2020-09-15 | Liquid sensor and urea case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212931570U true CN212931570U (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022011924.5U Active CN212931570U (en) | 2020-09-15 | 2020-09-15 | Liquid sensor and urea case |
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| Country | Link |
|---|---|
| CN (1) | CN212931570U (en) |
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2020
- 2020-09-15 CN CN202022011924.5U patent/CN212931570U/en active Active
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Address after: Room 101, No. 1, East Ring 3rd Street, Jitiagang, Huangjiang Town, Dongguan City, Guangdong Province, 523000 Patentee after: Guangdong Zhengyang Sensor Technology Co.,Ltd. Address before: Jitigang village, Huangjiang Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN ZHENGYANG ELECTRONIC MECHANICAL Co.,Ltd. |
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