CN205015050U - Water tank detection of water level appearance - Google Patents
Water tank detection of water level appearance Download PDFInfo
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- CN205015050U CN205015050U CN201520773844.XU CN201520773844U CN205015050U CN 205015050 U CN205015050 U CN 205015050U CN 201520773844 U CN201520773844 U CN 201520773844U CN 205015050 U CN205015050 U CN 205015050U
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Abstract
Water tank detection of water level appearance includes a power wire and a plurality of water level conductive metal silk, water level sampling circuit and a supply circuit, a plurality of conductive metal silks go out different length from the upper end of water tank downwardly extending, wherein the length of the longest conductive metal silk is less than or equal to the power wire, the equal electric connection water level sampling circuit of a plurality of conductive metal silks, the power wire is used for exporting a voltage, water level sampling circuit is used for the corresponding water level sample voltage of quantity output according to the conductive metal silk with water electrical contact to instruct different water levels, supply circuit is used for the power supply to give water level sampling circuit and power wire. The utility model discloses a different conductive metal silk of length detects different water levels, and safe and reliable, low cost, user tailor simply, uses in a flexible way, has fine market coverage and applied flexibility, can be fine satisfy market to performance, price and security needs.
Description
Technical field
The utility model relates to a kind of cistern water level detector.
Background technology
Along with the development of Smart Home technology, intelligence caravan or family's water-storing tank generally need to carry out monitoring water level by level sensor, General Requirements adopts the detection mode of environment protection health, need be perfectly safe, can not endanger personal safety or affect health, measuring equipment requires sealing and reliable, there will not be the phenomenons such as burn into leakage, then require cheap as much as possible in cost, and not high to the accuracy requirement of monitoring, without the need to providing the accurate information of water level.
At present, market common are the level sensor of the types such as pressure type water level sensor, capacitance water level sensor, floating-ball type water level sensor, sensors with auxiliary electrode is for the monitoring water level demand of intelligent caravan, family's water-storing tank, although its water level monitoring precision is higher, but whole sensor internal complex structure, cost is also higher.
Utility model content
For the deficiencies in the prior art, the utility model is intended to provide a kind of cistern water level detector solved the problems of the technologies described above.
For achieving the above object, the utility model adopts following technical scheme:
A kind of cistern water level detector, it comprises a power Metal silk and some water level conductive wires, water level sample circuit and feed circuit;
Some conductive wires extend mutually different length downwards from the upper end of water tank; The length of wherein the longest conductive wire is less than or equal to power Metal silk; Some conductive wires are all electrically connected water level sample circuit; Power Metal silk is for exporting a voltage; Water level sample circuit is used for exporting corresponding water level sampled voltage, to indicate different water levels according to the quantity of the conductive wire in electrical contact to water; Feed circuit are used for power supply to water level sample circuit and power Metal silk.
Preferably, water level sample circuit comprises one first sampling module and some second sampling modules, electrically corresponding first sampling module of this longest conductive wire, all the other shorter conductive wires and some second sampling module one_to_one corresponding; First sampling module comprises resistance R3, resistance R4 and the first electronic switch module; Each second sampling module comprises resistance R7 and the second electronic switch module;
The control end of the first electronic switch module is electrically connected the upper end W0 of this longest conductive wire, the input end of the first electronic switch module connects direct supply VCC by resistance R3, the output terminal of the first electronic switch module, by resistance R4 ground connection, also connects water level sampled voltage output terminals A DC0;
The control end of the second electronic switch module connects the upper end WN of the shorter conductive wire of correspondence one, the input end of the second electronic switch module connects direct supply VCC by resistance R7, and the output terminal of the second electronic switch module connects this water level sampled voltage output terminals A DC0;
Wherein, when the control end of the first electronic switch module and the second electronic switch module respectively receives high level signal, the first electronic switch module and the conducting respectively of the second electronic switch module.
Preferably, the first electronic switch module comprises resistance R1, resistance R2, triode Q1 and optocoupler U1; The base stage of triode Q1 is electrically connected the upper end W0 of this longest conductive wire by resistance R1, the collector of triode Q1 connects direct supply VCC by resistance R2, the emitter of triode Q1 connects the input end of optocoupler U1, first output terminal of optocoupler U1 connects direct supply VCC by resistance R3, second output terminal of optocoupler U1, by resistance R4 ground connection, also connects water level sampled voltage output terminals A DC0.
Preferably, the second electronic switch module comprises resistance R5, resistance R6, triode Q2 and optocoupler U2; The base stage of triode Q2 connects the upper end WN of the shorter conductive wire of correspondence one by resistance R5, the collector of triode Q2 connects direct supply VCC by resistance R6, the emitter of triode Q2 connects the input end of optocoupler U2, first output terminal of optocoupler U2 connects direct supply VCC by resistance R7, and second output terminal of optocoupler U2 connects this water level sampled voltage output terminals A DC0.
Preferably, the upper end of power Metal silk and each conductive wire is embedded in gland bonnet, is also integrated in a plug T1 by winding displacement; Water level sample circuit and feed circuit are packaged in a housing, and the input end of water level sample circuit is integrated in a socket T2, and plug T1 is electrically connected socket T2 pluggablely; Gland bonnet is for being removably seal-installed on water tank.
Preferably, some conductive wires reduce to the length equal proportion of downward-extension from the upper end of water tank.
The beneficial effects of the utility model at least comprise following some:
The utility model adopts the mutually different conductive wire of length to detect different water level, safe and reliable, with low cost, user's cutting is simple and easy, applying flexible, there is good market coverage degree and application flexibility, can be good at meeting market to performance, price and security needs.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of the water level sample circuit of the better embodiment of the utility model cistern water level detector.
Fig. 2 is the structural representation of the better embodiment of the utility model cistern water level detector.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
Refer to 1 and Fig. 2, the utility model relates to a kind of cistern water level detector, and its better embodiment comprises a power Metal silk and some water level conductive wires, water level sample circuit and feed circuit.
Some conductive wires extend mutually different length downwards from the upper end of water tank; The length of wherein the longest conductive wire 22 is less than or equal to power Metal silk; Some conductive wires are all electrically connected water level sample circuit; Power Metal silk 21 is for exporting a voltage; Water level sample circuit is used for exporting corresponding water level sampled voltage, to indicate different water levels according to the quantity of the conductive wire in electrical contact to water; Feed circuit are used for power supply to water level sample circuit and power Metal silk 21.
Such as, when the full water level of water tank, all conductive wires are all dipped in water as four, then all conductive wires are all by water and grounded metal silk short circuit, when the water of water tank is reduced to 3/4ths, outside a then wherein the shortest conductive wire surfaces, only have three conductive wires and grounded metal silk short circuit; The rest may be inferred, corresponding water level can be detected according to the conductive wire quantity be soaked in water.The cost of conductive wire is extremely low, greatly can reduce the cost of water level detection gauge, in addition, only has conductive wire with water contact, can not polluted source, ensures that the water of water tank is not contaminated, more environmental protection.
In the present embodiment, water level sample circuit comprises one first sampling module 80 and some second sampling modules 90, electrically corresponding first sampling module 80 of this longest conductive wire 22, all the other shorter conductive wires 23 and some second sampling module 90 one_to_one corresponding; First sampling module 80 comprises resistance R1 to resistance R4, triode Q1 and optocoupler U1; Each second sampling module 90 comprises resistance R5 to resistance R7, triode Q2 and optocoupler U2;
The base stage of triode Q1 is electrically connected the upper end W0 of this longest conductive wire 22 by resistance R1, the collector of triode Q1 connects direct supply VCC by resistance R2, the emitter of triode Q1 connects the input end of optocoupler U1, first output terminal of optocoupler U1 connects direct supply VCC by resistance R3, second output terminal of optocoupler U1, by resistance R4 ground connection, also connects water level sampled voltage output terminals A DC0;
The base stage of triode Q2 connects the upper end WN of the shorter conductive wire 23 of correspondence one by resistance R5, the collector of triode Q2 connects direct supply VCC by resistance R6, the emitter of triode Q2 connects the input end of optocoupler U2, first output terminal of optocoupler U2 connects direct supply VCC by resistance R7, and second output terminal of optocoupler U2 connects this water level sampled voltage output terminals A DC0.
When all conductive wires are all dipped in water, power Metal silk passes through water extraction voltage supplied if 5V is to each conductive wire, then triode Q1 and the equal conducting of some triode Q2, make optocoupler U1 and each optocoupler U2 conducting, then resistance R3 and some resistance R7 to connect with resistance R4 after being in parallel dividing potential drop, and the voltage that water level sampled voltage output terminals A DCO exports is the branch pressure voltage of resistance R4;
When water level reduces, such as one the shortest conductive wire surfaces, then the triode Q2 that the conductive wire surfaced is corresponding ends, optocoupler U2 also ends, so, reduce one with the resistance R7 of resistance R3 parallel connection is quantitatively corresponding, then the branch pressure voltage of resistance R4 reduces; The rest may be inferred, so, can export corresponding water level sampled voltage according to the conductive wire quantity in electrical contact to water.
Above-mentioned water level sample circuit structure is simple, and cost is low, can reduce the production cost of cistern water level detector further.
From the above, triode Q1 and optocoupler U1 forms electronic switching, and triode Q2 and optocoupler U2 forms electronic switching, therefore, any electronic switch module playing electronic switching all can be applicable to the technical program, and optocoupler U1 and optocoupler U2 also plays signal buffer action.
Preferably, the upper end of power Metal silk and each conductive wire is embedded in gland bonnet 30, is also integrated in a plug T1 by winding displacement 40; Water level sample circuit and feed circuit are packaged in a housing 10, and the input end of water level sample circuit is integrated in a socket T2, and plug T1 is electrically connected socket T2 pluggablely; Gland bonnet 30 is for being removably seal-installed on water tank; So, convenient installation cistern water level detector, and ensure that the water source in water tank is not contaminated.
Preferably, some conductive wires reduce to the length equal proportion of downward-extension from the upper end of water tank.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the utility model claim.
Claims (6)
1. a cistern water level detector, is characterized in that: it comprises a power Metal silk and some water level conductive wires, water level sample circuit and feed circuit;
Some conductive wires extend mutually different length downwards from the upper end of water tank; The length of wherein the longest conductive wire is less than or equal to power Metal silk; Some conductive wires are all electrically connected water level sample circuit; Power Metal silk is for exporting a voltage; Water level sample circuit is used for exporting corresponding water level sampled voltage, to indicate different water levels according to the quantity of the conductive wire in electrical contact to water; Feed circuit are used for power supply to water level sample circuit and power Metal silk.
2. cistern water level detector as claimed in claim 1, it is characterized in that: water level sample circuit comprises one first sampling module and some second sampling modules, electrically corresponding first sampling module of this longest conductive wire, all the other shorter conductive wires and some second sampling module one_to_one corresponding; First sampling module comprises resistance R3, resistance R4 and the first electronic switch module; Each second sampling module comprises resistance R7 and the second electronic switch module;
The control end of the first electronic switch module is electrically connected the upper end W0 of this longest conductive wire, the input end of the first electronic switch module connects direct supply VCC by resistance R3, the output terminal of the first electronic switch module, by resistance R4 ground connection, also connects water level sampled voltage output terminals A DC0;
The control end of the second electronic switch module connects the upper end WN of the shorter conductive wire of correspondence one, the input end of the second electronic switch module connects direct supply VCC by resistance R7, and the output terminal of the second electronic switch module connects this water level sampled voltage output terminals A DC0;
Wherein, when the control end of the first electronic switch module and the second electronic switch module respectively receives high level signal, the first electronic switch module and the conducting respectively of the second electronic switch module.
3. cistern water level detector as claimed in claim 2, is characterized in that: the first electronic switch module comprises resistance R1, resistance R2, triode Q1 and optocoupler U1; The base stage of triode Q1 is electrically connected the upper end W0 of this longest conductive wire by resistance R1, the collector of triode Q1 connects direct supply VCC by resistance R2, the emitter of triode Q1 connects the input end of optocoupler U1, first output terminal of optocoupler U1 connects direct supply VCC by resistance R3, second output terminal of optocoupler U1, by resistance R4 ground connection, also connects water level sampled voltage output terminals A DC0.
4. cistern water level detector as claimed in claim 2 or claim 3, is characterized in that: the second electronic switch module comprises resistance R5, resistance R6, triode Q2 and optocoupler U2; The base stage of triode Q2 connects the upper end WN of the shorter conductive wire of correspondence one by resistance R5, the collector of triode Q2 connects direct supply VCC by resistance R6, the emitter of triode Q2 connects the input end of optocoupler U2, first output terminal of optocoupler U2 connects direct supply VCC by resistance R7, and second output terminal of optocoupler U2 connects this water level sampled voltage output terminals A DC0.
5. cistern water level detector as claimed in claim 1, is characterized in that: the upper end of power Metal silk and each conductive wire is embedded in gland bonnet, is also integrated in a plug T1 by winding displacement; Water level sample circuit and feed circuit are packaged in a housing, and the input end of water level sample circuit is integrated in a socket T2, and plug T1 is electrically connected socket T2 pluggablely; Gland bonnet is for being removably seal-installed on water tank.
6. cistern water level detector as claimed in claim 1, is characterized in that: some conductive wires reduce to the length equal proportion of downward-extension from the upper end of water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520773844.XU CN205015050U (en) | 2015-10-08 | 2015-10-08 | Water tank detection of water level appearance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520773844.XU CN205015050U (en) | 2015-10-08 | 2015-10-08 | Water tank detection of water level appearance |
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| CN205015050U true CN205015050U (en) | 2016-02-03 |
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| CN201520773844.XU Active CN205015050U (en) | 2015-10-08 | 2015-10-08 | Water tank detection of water level appearance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115566A (en) * | 2015-10-08 | 2015-12-02 | 厦门拓宝科技有限公司 | Detection instrument for water level of water tank |
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- 2015-10-08 CN CN201520773844.XU patent/CN205015050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115566A (en) * | 2015-10-08 | 2015-12-02 | 厦门拓宝科技有限公司 | Detection instrument for water level of water tank |
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