CN202041258U - Closed double-probe ultrasonic water level sensor - Google Patents
Closed double-probe ultrasonic water level sensor Download PDFInfo
- Publication number
- CN202041258U CN202041258U CN2011200266929U CN201120026692U CN202041258U CN 202041258 U CN202041258 U CN 202041258U CN 2011200266929 U CN2011200266929 U CN 2011200266929U CN 201120026692 U CN201120026692 U CN 201120026692U CN 202041258 U CN202041258 U CN 202041258U
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- Prior art keywords
- probe
- control panel
- sensor
- ultrasonic
- water level
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- Expired - Lifetime
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- 239000000523 sample Substances 0.000 title claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000002604 ultrasonography Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model relates to a closed two probe ultrasonic wave level sensor, including sensor housing, sensor bottom plate, control panel and two ultrasonic transducer of device on the control panel, wherein the control panel is installed on the sensor bottom plate, and sensor housing and the sealed lock assembly of sensor bottom plate are in the same place, and its characterized in that still includes the probe sheath of two shell cover shapes, and two ultrasonic transducer are sealed probe, and the plane that its probe formed differs 180 angle devices on the control panel, and two probe sheaths cover respectively on two ultrasonic transducer. The utility model discloses a with sealed two probe each other become 180 degrees installation and sealed cowling structure in oval probe sheath, the effectual misdetection that "cross talk" brought between two probes that has reduced has not only reduced the detection blind area greatly, can be used to the measurement in less space, can be used to the great occasion of ambient humidity or dust moreover, the practicality is very strong.
Description
Technical field
The utility model relates to a kind of closed two probe ultrasonic water level sensors, and particularly a kind of closed two probe ultrasonic water level sensors that are used for the control water level of water purifier belong to the improvement technology of water purifier water level control system.
Background technology
At present, the level sensor of commercially available water purifier product generally has contact and contactless two kinds, the characteristics of contact level sensor are to measure reliably, but, because sensing device must contact with tested material, therefore measuring accuracy can be subjected to the influence of tested material, to the occasion that the sanitary condition or the cleanliness factor of tested material have requirement, just should not adopt the contact level sensor at some.Contactless level sensor such as ultrasonic sensor, its electronic eyes is an Open architecture, thus can only be used for the environment of dried and clean, and can't be used for ambient humidity or the bigger occasion of dust; Ultrasonic sensor can be divided into again single sonde-type and two sonde-type, and single probe type ultrasonic wave sensor is subject to the remained shock influence, and the blind area of sensor is bigger, can't use in closer distance or less space; Common two probe type ultrasonic wave sensors, if mounting distance is nearer, can inevitably run into " cross-talk " problem, promptly when a probe sent ultrasonic signal, this ultrasonic signal can directly be communicated to the accuracy that influences sensing and control on another receiving transducer because of structure problem.
Summary of the invention
The purpose of this utility model is to consider the problems referred to above and closed two probe ultrasonic water level sensors of a kind of solution reasonable in design, simple in structure, effective " cross-talk " problem is provided.
The novel technical scheme of this use is: a kind of closed two probe ultrasonic water level sensors, comprise sensor outer housing, sensor base plate, control panel and the ultrasonic probe of two devices on control panel, wherein control panel is installed on the sensor base plate, sensor outer housing attaches together with the sensor base plate seal buckle and fits over, it is characterized in that also comprising the probe sheath of two cap shapes, two ultrasonic probes are the enclosure-type probe, the plane that its probe forms differs 180 ° of angle devices on control panel, and two probe sheaths cover respectively and are contained on two ultrasonic probes.
The setting position of the long probe of described two ultrasonic probes and short probe is mutually 180 degree, irritates between its aluminium shell and the probe and is filled with colloid.
Described probe sheath is the cap body of two-stage step cylindrical shape, the cap top diameter on its top is slightly little, highly be equal to or less than the top thickness of sensor outer housing, the cylindrical shape diameter of the housing of its underpart is bigger, highly be slightly larger than the height of the ultrasonic probe of device on control panel, the inner chamber of probe sheath is oval.
Corresponding cap top is provided with two through holes on the end face of described sensor outer housing, and after sensor outer housing and sensor base plate fastened and be seated, the cap top of probe sheath was installed in the through hole respectively.
Device has a heating arrangement that prevents dewfall on the described control panel.
The outside of described base plate is pasted with one deck heat-preservation cotton to reduce dewfall.
Power supply lead wire on the described control panel seals from the dome-shaped hole that a side port of sensor outer housing is provided with and passes.
The utility model adopts the two probes of enclosure-type
Be mutually180 degree are installed and seal closure is contained in structure in the oval probe sheath, have effectively reduced the mistake that " cross-talk " brought between two probes and have surveyed; Be mutually the probe of 180 degree, not only reduced detection blind area greatly, can be used for the measurement in less space, and can be used for ambient humidity or the bigger occasion of dust, practicality is very strong.
Description of drawings
Fig. 1 is the outside drawing of the utility model level sensor;
Fig. 2 is the utility model decomposition texture synoptic diagram;
Fig. 3 is the mounting means synoptic diagram of the utility model level sensor probe tip.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, 2, the closed two probe ultrasonic water level sensors of the utility model, the probe sheath 2, sensor base plate 9, control panel 4 and the ultrasonic probe 3 of two devices on control panel 4 that comprise sensor outer housing 1, two cap shapes, wherein control panel 4 is installed on the sensor base plate 9, sensor outer housing 1 attaches together with sensor base plate 9 seal buckles and fits over, two ultrasonic probes 3 are the enclosure-type probe, the plane that its probe forms differs 180 ° of angle devices on control panel 4, and two probe sheaths 2 cover respectively and are contained on two ultrasonic probes 3.
As shown in Figure 3, the long probe 8 of described two ultrasonic probes 3 and the setting position of short probe 7 are mutually 180 degree and measure the blind area to reduce, and irritate between its aluminum alloy shell and the probe and are filled with colloid to guarantee its sealing.
Described probe sheath 2 is the cap body of two-stage step cylindrical shape, it is slightly little that the cap on its top pushes up 21 diameters, highly be equal to or less than the top thickness of sensor outer housing 1, the cylindrical shape diameter of the housing of its underpart is bigger, highly be slightly larger than the height of the ultrasonic probe 3 of device on control panel 4, the inner chamber of probe sheath 2 is oval.
Corresponding cap top 21 is provided with two through holes 11 on the end face of described sensor outer housing 1, and after sensor outer housing 1 was seated with sensor base plate 9 fastenings, the cap top 21 of probe sheath 2 was installed on respectively in the through hole 11.
Device has a heating arrangement 6 that prevents dewfall on the described control panel 4, and heating arrangement 6 has heating function, when there is condensate water inside, can dry, and avoids circuit malfunction.
The outside of described base plate 9 is pasted with one deck heat-preservation cotton to reduce dewfall.
Power supply lead wire 5 on the described control panel 4 seals from the dome-shaped hole that a side port of sensor outer housing 1 is provided with and passes.
Principle of work of the present utility model is as follows: also comprise ultrasound-driven circuit and ultrasound transducer element on the control panel 4, microprocessor control ultrasound-driven circuit, send the electric signal that meets ultrasonic transducer, electric signal applies on the transducer, making transducer produce ultrasound wave sends by air, a probe in the ultrasonic probe sends ultrasonic pulse, the ultrasonic signal that another reception reflects, when ultrasound wave runs into barrier, characteristic according to sound wave, sound wave can be reflected, when reflective sound wave was got back to receiving transducer, receiving transducer can convert ultrasonic/sonic wave to electric signal, and electric signal amplifies through control panel 4 signal amplification circuits and handles, calculate through microprocessor again, at last by external cord output result.
Claims (7)
1. closed two probe ultrasonic water level sensors, comprise sensor outer housing (1), sensor base plate (9), control panel (4) and the ultrasonic probe (3) of two devices on control panel (4), wherein control panel (4) is installed on the sensor base plate (9), sensor outer housing (1) attaches together with sensor base plate (9) seal buckle and fits over, it is characterized in that also comprising the probe sheath (2) of two cap shapes, two ultrasonic probes (3) are the enclosure-type probe, the plane that its probe forms differs 180 angle devices on control panel (4), and two probe sheaths (2) cover respectively and are contained on two ultrasonic probes (3).
2. closed two probe ultrasonic water level sensors according to claim 1, it is characterized in that the long probe (8) of described two ultrasonic probes (3) and the setting position plane of short probe (7) differ 180 degree, irritate between its aluminium shell and the probe and are filled with colloid.
3. closed two probe ultrasonic water level sensors according to claim 1, it is characterized in that described probe sheath (2) is the cap body of two-stage step cylindrical shape, cap top (21) diameter on its top is slightly little, highly be equal to or less than the top thickness of sensor outer housing (1), the cylindrical shape diameter of the housing of its underpart is bigger, highly be slightly larger than the height of the ultrasonic probe (3) of device on control panel (4), the inner chamber of probe sheath (2) is oval.
4. closed two probe ultrasonic water level sensors according to claim 3, it is characterized in that corresponding cap top (21) is provided with two through holes (11) on the end face of described sensor outer housing (1), after sensor outer housing (1) was seated with sensor base plate (9) fastening, the cap top (21) of probe sheath (2) was installed on respectively in the through hole (11).
5. closed two probe ultrasonic water level sensors according to claim 1 is characterized in that the last device of described control panel (4) has a heating arrangement (6) that prevents dewfall.
6. closed two probe ultrasonic water level sensors according to claim 1 is characterized in that the outside of described base plate (9) is pasted with one deck heat-preservation cotton to reduce dewfall.
7. closed two probe ultrasonic water level sensors according to claim 1 is characterized in that power supply lead wire (5) on the described control panel (4) seals to pass from the dome-shaped hole that a side port of sensor outer housing (1) is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200266929U CN202041258U (en) | 2011-01-27 | 2011-01-27 | Closed double-probe ultrasonic water level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200266929U CN202041258U (en) | 2011-01-27 | 2011-01-27 | Closed double-probe ultrasonic water level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041258U true CN202041258U (en) | 2011-11-16 |
Family
ID=44968696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200266929U Expired - Lifetime CN202041258U (en) | 2011-01-27 | 2011-01-27 | Closed double-probe ultrasonic water level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202041258U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589579A (en) * | 2012-02-22 | 2012-07-18 | 三一重工股份有限公司 | Rotary encoder and method for measuring angle |
| CN105717510A (en) * | 2016-03-04 | 2016-06-29 | 陈武强 | Automobile ultrasonic detecting method and sensor |
| CN111213297A (en) * | 2017-10-19 | 2020-05-29 | 维宁尔美国公司 | Ratchet fit cover for sensor housing |
-
2011
- 2011-01-27 CN CN2011200266929U patent/CN202041258U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589579A (en) * | 2012-02-22 | 2012-07-18 | 三一重工股份有限公司 | Rotary encoder and method for measuring angle |
| CN102589579B (en) * | 2012-02-22 | 2015-07-01 | 三一重工股份有限公司 | Rotary encoder and method for measuring angle |
| CN105717510A (en) * | 2016-03-04 | 2016-06-29 | 陈武强 | Automobile ultrasonic detecting method and sensor |
| CN111213297A (en) * | 2017-10-19 | 2020-05-29 | 维宁尔美国公司 | Ratchet fit cover for sensor housing |
| CN111213297B (en) * | 2017-10-19 | 2023-02-28 | 维宁尔美国有限责任公司 | Ratchet fit cover for sensor housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER NAME: MEIDI GROUP CO. LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: MIDEA GROUP Co.,Ltd. Patentee after: Foshan Midea Qinghu Water Purification Equipment Co.,Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Patentee before: Midea Group Patentee before: Foshan Midea Qinghu Water Purification Equipment Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |