CN211042407U - Non-contact ultrasonic liquid level sensor and system thereof - Google Patents
Non-contact ultrasonic liquid level sensor and system thereof Download PDFInfo
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- CN211042407U CN211042407U CN201921865717.7U CN201921865717U CN211042407U CN 211042407 U CN211042407 U CN 211042407U CN 201921865717 U CN201921865717 U CN 201921865717U CN 211042407 U CN211042407 U CN 211042407U
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- level sensor
- liquid level
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- body part
- contact
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Abstract
A non-contact ultrasonic level sensor and system thereof, the non-contact ultrasonic level sensor comprising: the liquid level sensor host comprises an auxiliary display screen, a first interface and at least one second interface; a subscriber line, an end of the subscriber line having a first connector to mate with the first interface; the ultrasonic probe comprises a body part, a side conducting part and a cover part, wherein the body part is barrel-shaped with an opening, and an ultrasonic oscillation wafer is arranged in the body part; the side conducting part is communicated and connected with the cylindrical side surface of the body part and is communicated with the cylindrical space in the body part; the cover part is used for covering the body part; the extension line, the extension line is connected to ultrasonic probe the side lead-through portion, the tip of extension line has the second and connects, the second connect with second interface phase-match. The non-contact ultrasonic liquid level sensor can be flexibly applied to various use occasions.
Description
Technical Field
The utility model relates to an ultrasonic wave level sensor field especially relates to a non-contact ultrasonic wave level sensor and system thereof.
Background
The detection of liquid levels is a problem that is often encountered in production and in life. For the detection of the liquid level, a direct contact type detection method, such as a float type, a pressure type or a magnetic sliding type detection method, is generally adopted at present. However, these detection methods are mostly contact-type, i.e. there are parts of the detection structure that need to be in contact with the respective liquid.
Ultrasonic level sensors are increasingly used because they can be mounted directly on the outside, e.g., the bottom, of a liquid container and do not require drilling or the like at the location where the liquid container is mounted. The structure of the existing ultrasonic liquid level sensor is mostly directly connected with a corresponding control unit, and the control unit is used for displaying a corresponding liquid level value, so that the ultrasonic liquid level sensor cannot be flexibly applied to installation of various occasions, and cannot rapidly display a corresponding liquid level value under various conditions.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem provide a non-contact ultrasonic wave level sensor and system thereof to make non-contact ultrasonic wave level sensor simple to operate, and can swiftly show liquid level value constantly the system can obtain corresponding liquid level fast accurately.
In order to solve the above problem, the utility model provides a non-contact ultrasonic wave level sensor, include: the liquid level sensor host comprises an auxiliary display screen, a first interface and at least one second interface; a subscriber line, an end of the subscriber line having a first connector to mate with the first interface; the ultrasonic probe comprises a body part, a side conducting part and a cover part, wherein the body part is barrel-shaped with an opening, and an ultrasonic oscillation wafer is arranged in the body part; the side conducting part is communicated and connected with the cylindrical side surface of the body part and is communicated with the cylindrical space in the body part; the cover part is used for covering the body part; the extension line, the extension line is connected to ultrasonic probe the side lead-through portion, the tip of extension line has the second and connects, the second connect with second interface phase-match.
Optionally, the body is in the shape of a barrel with an opening; the cover part is a flat-top round cover, and the circular area of the top of the cover part is larger than the cylindrical opening area of the body part.
Optionally, the liquid level sensor host is cuboid.
Optionally, a key is arranged beside the auxiliary display screen of the liquid level sensor host.
Optionally, an indicator light is arranged beside the auxiliary display screen of the liquid level sensor host.
Optionally, the number of the second interfaces is more than two.
Optionally, the first joint is a twelve-pin joint, and the second joint is a six-pin joint.
In order to solve the above problem, the utility model also provides a non-contact ultrasonic wave level sensor system, include: the non-contact ultrasonic liquid level sensor as described above; the ultrasonic probe of the non-contact ultrasonic liquid level sensor is arranged below the outside of the liquid tank; a control unit to which the subscriber line is connected.
Optionally, the liquid tank is an oil tank of an automobile, and the control unit is a vehicle machine of the automobile.
Optionally, the oil tank is a cuboid oil tank, and the ultrasonic probe is installed on the outer surface position of the oil tank closest to the ground.
The utility model discloses in one of them aspect of technical scheme, the precision of sensor is high, and the sensor can reach 0.1mm to the measurement resolution ratio of liquid level height, and measurement accuracy is 0.5%, under the external environment of high temperature and high and cold, can guarantee higher measurement accuracy.
The utility model discloses in another of them aspect of technical scheme, the sensor is easily installed and is maintained, only need with the ultrasonic transducer of sensor install corresponding liquid tank outside below can, need not to change original liquid tank measurement system, need not to carry out trompil and change to the liquid tank to can guarantee other original liquid check out test set's normal operating.
The utility model discloses in another of them aspect of technical scheme, sensor reliability is strong, and the sensor adopts ultrasonic measurement's method, carries out non-contact measurement, avoids sensor and liquid contact, can prevent to corrode and pollute, can keep long-term measuring stability, and long-term stability is good, can normally work in abominable environment, and is dampproofing, acid-proof, fire-retardant, anti-interference.
The utility model discloses in another of them aspect of technical scheme, sensor self environmental protection is pollution-free, and the power consumption is little.
The utility model discloses in another of them aspect of technical scheme, sensor structure flexibility is high, but the sensor exclusive use uses the auxiliary display screen directly to look over data, does and uses with the cooperation of GPS equipment, with data transmission to the backstage through GPS equipment, carries out statistics of data, report form analysis and inquiry.
Drawings
FIG. 1 is a schematic diagram of a liquid level sensor host of a non-contact ultrasonic liquid level sensor in an embodiment;
FIG. 2 is a schematic diagram of a subscriber line of a non-contact ultrasonic level sensor in an embodiment;
FIG. 3 is a schematic diagram of an ultrasonic probe and extension wires of a non-contact ultrasonic level sensor in an embodiment;
FIG. 4 is an exploded view of an ultrasonic probe of the non-contact ultrasonic level sensor of the embodiment;
FIG. 5 is a schematic diagram of a liquid level sensor host of a non-contact ultrasonic liquid level sensor in another embodiment;
FIG. 6 is a schematic diagram of a non-contact ultrasonic level sensor system in an embodiment.
Detailed Description
In the prior art, the structure of the ultrasonic liquid level sensor is not flexible to use and needs to be improved. Therefore, the utility model provides a new non-contact ultrasonic wave level sensor and system thereof.
For a clearer illustration, the present invention will be described in detail with reference to the accompanying drawings.
The present embodiment provides a non-contact ultrasonic liquid level sensor, please refer to fig. 1 to 4 in combination, which includes:
as shown in fig. 1, the liquid level sensor host 110 includes an auxiliary display 111, a first interface 112, and at least one second interface 113; in this embodiment, the first interface 112 and the second interface 113 are both located on the front side of the liquid level sensor host 110; in other embodiments, the interface can be arranged on other sides, or different sides, or on the upper and lower surfaces;
the subscriber line 120, as shown in fig. 2, has a first connector 121 at the end of the subscriber line 120 to match the first interface 112;
an ultrasonic probe 130 (see fig. 3), the ultrasonic probe 130 including a body 131, a side conductor 132, and a cap 133, the body 131 having a barrel shape with an opening, and the body 131 having an ultrasonic oscillation wafer 1311 (see fig. 4) therein; the side conducting part 132 is connected to the cylindrical side surface of the body part 131 in a conducting manner and is conducted with the cylindrical space in the body part 131; a lid 133 for covering the body 131; the side lead-through 132 is used for a corresponding line to extend into the cylindrical space in the body 131, and then the line is connected to each structure (including the ultrasonic oscillation wafer 1311 and the like) in the body 131;
an extension line 134, as shown in fig. 3, the extension line 134 is connected to the side conducting part 132 of the ultrasonic probe 130 (for the reason of connection of the lines as described above), and an end of the extension line 134 has a second joint 135, and the second joint 135 is matched with the second interface 113.
In this embodiment, as shown in fig. 1, the main liquid level sensor unit 110 has a rectangular parallelepiped shape. In this embodiment, the liquid level sensor main unit 110 can be locked to form a rectangular parallelepiped shape by using the screw 116.
In this embodiment, the auxiliary display 111 may be a liquid crystal display, and may be a digital display that displays only numbers and decimal points.
In this embodiment, as shown in fig. 1, a key 114 is provided beside the auxiliary display 111 of the liquid level sensor main unit 110. In this embodiment, the number of the buttons 114 is three. In other embodiments, the number of keys 114 may be other. The keys 114 may have a long-press corresponding function and a short-press corresponding function, wherein the two keys 114 may have a numerical value increasing function and a numerical value decreasing function respectively in the corresponding modes.
In this embodiment, as shown in fig. 1, an indicator light 115 is disposed beside the auxiliary display 111 of the liquid level sensor host 110, in this embodiment, the indicator light 115 may be an L ED light, the indicator light 115 may display green and red, for example, a green light is normally on to indicate that the ultrasonic probe 130 is working normally, and a red light is normally on to indicate that the ultrasonic probe 130 is abnormal (e.g., a wire is not inserted or the ultrasonic probe 130 is detached).
In this embodiment, as shown in fig. 4, the body 131 is in the shape of a cylinder having an opening; the cap 133 is a flat top dome, and the circular area of the top of the cap 133 is larger than the cylindrical opening area of the body 131, as can be seen in fig. 3 and 4.
In this embodiment, as shown in fig. 2, the first connector 121 is a twelve-pin connector. As shown in fig. 3, the second joint 135 is a six-legged joint. Although not shown, the first interface 112 is a twelve-pin interface, and the second interface 113 is a six-pin interface. The pin functions and descriptions of the first interface 112 are shown in table 1 below (pin numbers are arranged from left to right, top row to bottom row):
TABLE 1
The sensor provided by the embodiment has the following advantages:
1. the precision is high, the measurement resolution of the sensor to the liquid level height can reach 0.1mm, the measurement precision is +/-0.5%, and the higher measurement precision can be ensured in high-temperature and high-cold external environments;
2. the installation and maintenance are easy, only the ultrasonic probe of the sensor is needed to be installed below the outer part of the corresponding liquid tank, the original liquid tank measuring system is not needed to be changed, the liquid tank is not needed to be perforated and changed, and the normal operation of other original liquid detection equipment can be ensured;
3. the sensor adopts an ultrasonic measurement method, non-contact measurement is carried out, the sensor is prevented from contacting with liquid, corrosion and pollution can be prevented, the stability of long-term measurement can be kept, the long-term stability is good, the sensor can normally work in a severe environment, and the sensor is moisture-proof, acid-proof, flame-retardant and anti-interference;
4. the self-environmental protection is pollution-free, and the energy consumption is low;
5. the structure flexibility is high, but the sensor exclusive use uses auxiliary display 111 directly to look over data, also can use with GPS equipment cooperation, through GPS equipment with data transmission to backstage, carries out data statistics, report form analysis and inquiry.
This embodiment provides another non-contact ultrasonic liquid level sensor, please refer to fig. 5.
The non-contact ultrasonic liquid level sensor includes:
the level sensor host 210, as shown in fig. 5, the level sensor host 210 includes an auxiliary display screen 211, a first interface 212, and at least one second interface 213; in this embodiment, the first interface 212 and the second interface 213 are both located on the front side of the liquid level sensor host 210; in other embodiments, the interface can be arranged on other sides, or different sides, or on the upper and lower surfaces;
a subscriber line (not shown, corresponding to the previous embodiment), the end of which has a first connector matching the first interface;
an ultrasonic probe (not shown, refer to the corresponding content of the previous embodiment), which includes a body portion, a side lead-through portion, and a cap portion, the body portion being barrel-shaped with an opening, the body portion having an ultrasonic oscillation wafer therein; the side conducting part is communicated and connected with the cylindrical side surface of the body part and is communicated with the cylindrical space in the body part; the cover part is used for covering the body part;
an extension line (not shown, refer to the corresponding content of the previous embodiment), the side of the extension line connected to the ultrasonic probe is conducted, and the end of the extension line is provided with a second connector, and the second connector is matched with the second interface.
In this embodiment, as shown in fig. 5, the number of the second interfaces 213 is three. Such a single level sensor host 210 with three sensors of the second interface 213 means that one sensor may have a corresponding three ultrasound probes, thereby enabling a corresponding level detection at three different locations (which may correspond to three different tank devices) at the same time.
In this embodiment, as shown in fig. 5, a key 214 may be provided beside the auxiliary display 211 of the liquid level sensor main unit 210. And accordingly, as shown in fig. 5, the number of buttons in the present embodiment can be increased from three in fig. 1 to four in fig. 5, and the increased buttons are used to switch the data detected by different ultrasonic probes.
It should be noted that, in other embodiments, the number of the second interfaces may also be two or more than four, so that the integration level of the sensor is higher.
In this embodiment, as shown in fig. 5, an indicator light 215 is further disposed beside the auxiliary display screen 211 of the liquid level sensor main unit 210. Reference is made to the preceding embodiments for corresponding matters. In addition, as shown in fig. 5, the liquid level sensor host 210 may be locked into a corresponding rectangular parallelepiped structure by screws 216.
Please refer to the corresponding contents of the foregoing embodiments for further structure, properties and advantages of the sensor provided by the present embodiment.
Another embodiment of the present invention provides a non-contact ultrasonic liquid level sensor system, please refer to fig. 6.
The system comprises: the non-contact ultrasonic liquid level sensor provided by any of the foregoing embodiments, therefore, the sensor can refer to the corresponding content of each of the foregoing embodiments. In particular, a level sensor main body 40 of a corresponding non-contact ultrasonic level sensor is shown in fig. 6.
The system further comprises a liquid tank 30 and the ultrasonic probe of the non-contact ultrasonic level sensor is mounted externally below the liquid tank 30.
The system further comprises a control unit 50, to which control unit 50 a subscriber line of the contactless ultrasonic level sensor is connected.
As shown in fig. 6, in the present embodiment, the liquid tank 30 is a fuel tank of an automobile, and the control unit 50 is a vehicle unit of the automobile. And in fig. 6, it is shown that an extension line 41 of the non-contact ultrasonic liquid level sensor is connected to the liquid tank 30, a user line 42 of the non-contact ultrasonic liquid level sensor is connected to the car machine 50, and the liquid level sensor host machine 40 is connected with the extension line 41 and the user line 42, which can be referred to the corresponding content of the previous embodiment.
In this embodiment, the oil tank is a cuboid oil tank (the oil tank is a horizontal cuboid structure, and the side edge of the cuboid is a chamfer structure), and the ultrasonic probe is installed on the outer surface position of the oil tank nearest to the ground. Although not shown in the figure, a glue layer may be provided between the ultrasonic probe and the liquid tank 30, that is, the ultrasonic probe may be fixed below the liquid tank by gluing.
It should be noted that, in other embodiments, when the liquid tank 30 is a fuel tank of an automobile, the fuel tank may also be cylindrical, and in this case, the ultrasonic probe may also be installed at the position of the outer surface of the fuel tank, which is closest to the ground. The installation area of the ultrasonic probe is required to avoid an oil filling port, an oil outlet, an oil return pipeline, an oil float, a baffle and the like, and the position of the bottom of the oil tank, which is relatively flat and is as close to the central area as possible, is selected as far as possible. It should be noted that, in other embodiments, the system may further include a mobile power supply and the like.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (10)
1. A non-contact ultrasonic liquid level sensor, comprising:
the liquid level sensor host comprises an auxiliary display screen, a first interface and at least one second interface;
a subscriber line, an end of the subscriber line having a first connector to mate with the first interface;
the ultrasonic probe comprises a body part, a side conducting part and a cover part, wherein the body part is barrel-shaped with an opening, and an ultrasonic oscillation wafer is arranged in the body part; the side conducting part is communicated and connected with the cylindrical side surface of the body part and is communicated with the cylindrical space in the body part; the cover part is used for covering the body part;
the extension line, the extension line is connected to ultrasonic probe the side lead-through portion, the tip of extension line has the second and connects, the second connect with second interface phase-match.
2. The non-contact ultrasonic liquid level sensor of claim 1, wherein the body is in the shape of a cylinder having an opening; the cover part is a flat-top round cover, and the circular area of the top of the cover part is larger than the cylindrical opening area of the body part.
3. The ultrasonic liquid level sensor of claim 2, wherein the liquid level sensor mainframe is rectangular.
4. The ultrasonic liquid level sensor of claim 3, wherein the liquid level sensor main unit has a key button beside the auxiliary display screen.
5. The ultrasonic liquid level sensor of claim 4, wherein an indicator light is provided beside the auxiliary display screen of the liquid level sensor main unit.
6. The ultrasonic liquid level sensor of claim 1, wherein the number of the second ports is two or more.
7. The ultrasonic non-contact liquid level sensor of claim 1 or 6, wherein the first connector is a twelve-pin connector and the second connector is a six-pin connector.
8. A non-contact ultrasonic liquid level sensor system, comprising:
the non-contact ultrasonic liquid level sensor of any one of claims 1 to 7;
the ultrasonic probe of the non-contact ultrasonic liquid level sensor is arranged below the outside of the liquid tank;
a control unit to which the subscriber line is connected.
9. The non-contact ultrasonic liquid level sensor system of claim 8, wherein the liquid tank is an oil tank of an automobile and the control unit is a vehicle unit of the automobile.
10. The ultrasonic non-contact level sensor system of claim 9, wherein the tank is a rectangular parallelepiped tank and the ultrasonic probe is mounted on an outer surface of the tank nearest the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921865717.7U CN211042407U (en) | 2019-11-01 | 2019-11-01 | Non-contact ultrasonic liquid level sensor and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921865717.7U CN211042407U (en) | 2019-11-01 | 2019-11-01 | Non-contact ultrasonic liquid level sensor and system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211042407U true CN211042407U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921865717.7U Expired - Fee Related CN211042407U (en) | 2019-11-01 | 2019-11-01 | Non-contact ultrasonic liquid level sensor and system thereof |
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| Country | Link |
|---|---|
| CN (1) | CN211042407U (en) |
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2019
- 2019-11-01 CN CN201921865717.7U patent/CN211042407U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20201101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |