CN204705388U - Water dispenser liquid level detector - Google Patents
Water dispenser liquid level detector Download PDFInfo
- Publication number
- CN204705388U CN204705388U CN201520431372.XU CN201520431372U CN204705388U CN 204705388 U CN204705388 U CN 204705388U CN 201520431372 U CN201520431372 U CN 201520431372U CN 204705388 U CN204705388 U CN 204705388U
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- Prior art keywords
- touch sensible
- pin
- induction end
- chip
- liquid level
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Abstract
The utility model discloses a kind of water dispenser liquid level detector, described liquid level detector is connected with the control chip receiving liquid level signal, and described liquid level detector comprises: multiple induction end; At least one touch inductor; Described touch inductor has multiple touch sensible passage; Described induction end is connected with the input end of described touch sensible passage, and via external capacitive ground connection; The output terminal being connected with the touch sensible passage of induction end connects power supply VCC positive pole via pull-up resistor, and is connected with the I/O interface of described control chip; For the power supply VCC powering to described touch inductor.The water dispenser liquid level detector that the utility model provides, water level detecting is accurate, structure is simple, economy and durability.The utility model can detect the SEA LEVEL VARIATION in water dispenser across this medium of induction end, understand water level in real time, device itself does not affect by factors such as burn into incrustation scales.
Description
Technical field
The utility model relates to a kind of water dispenser liquid level detector.
Background technology
Occurred the water dispenser of built-in water-level probe in the market, condensate tank of dehumidifier, by some water-level probes, realizes the many water level detecting to water dispenser.When a certain water level has water, condensate tank of dehumidifier exports high level, time anhydrous, and output low level.The signal of low and high level is read by PLC or other control circuit board, and then drives the electrical appliance work such as water pump.But these water-level probes of the prior art are when Long Term Contact water, oxidizable, and surface very easily forms incrustation scale, causes low precision, also easily produce misoperation or be failure to actuate.
Summary of the invention
The utility model for the proposition of above problem, and develops a kind of water dispenser liquid level detector.
A kind of water dispenser liquid level detector, described liquid level detector is connected with the control chip receiving liquid level signal, and described liquid level detector comprises:
Multiple induction end;
At least one touch inductor; Described touch inductor has multiple touch sensible passage; Described induction end is connected with the input end of described touch sensible passage, and via external capacitive ground connection; The output terminal being connected with the touch sensible passage of induction end connects power supply VCC positive pole via pull-up resistor, and is connected with the I/O interface of described control chip;
For the power supply VCC powering to described touch inductor;
Further, multiple induction end is vertically arranged in parallel in water dispenser;
Further, described induction end adopts copper sheet; Described copper sheet is encapsulated in food-grade hot-water line;
Further, described induction end adopts printed circuit board (PCB), and this printed circuit board (PCB) comprises insulating substrate and is arranged on the Copper Foil on described insulating substrate; Described printed circuit board (PCB) is encapsulated in food-grade hot-water line;
Further, described induction end has 8, is respectively induction end S0, S1, S2, S3, S4, S5, S6 and S7; Described touch inductor employing model is the touch sensible chip U1 of ST08B; The pin CIN0 of touch sensible chip U1 is connected with induction end S0, and via external capacitive C1 ground connection; The pin CIN1 of touch sensible chip U1 is connected with induction end S1, and via external capacitive C2 ground connection; The pin CIN2 of touch sensible chip U1 is connected with induction end S2, and via external capacitive C3 ground connection; The pin CIN3 of touch sensible chip U1 is connected with induction end S3, and via external capacitive C4 ground connection; The pin CIN4 of touch sensible chip U1 is connected with induction end S4, and via external capacitive C5 ground connection; The pin CIN5 of touch sensible chip U1 is connected with induction end S5, and via external capacitive C6 ground connection; The pin CIN6 of touch sensible chip U1 is connected with induction end S6, and via external capacitive C7 ground connection; The pin CIN7 of touch sensible chip U1 is connected with induction end S7, and via external capacitive C8 ground connection; The pin OUT0 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R1, and via the I/O interface of resistance R10 connection control chip; The pin OUT1 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R2, and via the I/O interface of resistance R11 connection control chip; The pin OUT2 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R3, and via the I/O interface of resistance R12 connection control chip; The pin OUT3 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R4, and via the I/O interface of resistance R13 connection control chip; The pin OUT4 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R5, and via the I/O interface of resistance R14 connection control chip; The pin OUT5 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R6, and via the I/O interface of resistance R15 connection control chip; The pin OUT6 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R7, and via the I/O interface of resistance R16 connection control chip; The pin OUT7 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R8, and via the I/O interface of resistance R17 connection control chip.
Owing to have employed technique scheme, the water dispenser liquid level detector that the utility model provides, water level detecting is accurate, structure is simple, economy and durability.The utility model can across this medium of induction end detect in water dispenser SEA LEVEL VARIATION, understand water level in real time, device itself does not affect by factors such as burn into incrustation scales.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of water dispenser liquid level detector as depicted in figs. 1 and 2, described liquid level detector is connected with the control chip receiving liquid level signal, and described liquid level detector comprises: multiple induction end; At least one touch inductor; Described touch inductor has multiple touch sensible passage; Described induction end is connected with the input end of described touch sensible passage, and via external capacitive ground connection; The output terminal being connected with the touch sensible passage of induction end connects power supply VCC positive pole via pull-up resistor, and is connected with the I/O interface of described control chip; For the power supply VCC powering to described touch inductor; Further, multiple induction end is vertically arranged in parallel in water dispenser; Further, described induction end adopts copper sheet; Described copper sheet is encapsulated in food-grade hot-water line; Further, described induction end adopts printed circuit board (PCB), and this printed circuit board (PCB) comprises insulating substrate and is arranged on the Copper Foil on described insulating substrate; Described printed circuit board (PCB) is encapsulated in food-grade hot-water line; Further, described induction end has 8, is respectively induction end S0, S1, S2, S3, S4, S5, S6 and S7; Described touch inductor employing model is the touch sensible chip U1 of ST08B; The pin CIN0 of touch sensible chip U1 is connected with induction end S0, and via external capacitive C1 ground connection; The pin CIN1 of touch sensible chip U1 is connected with induction end S1, and via external capacitive C2 ground connection; The pin CIN2 of touch sensible chip U1 is connected with induction end S2, and via external capacitive C3 ground connection; The pin CIN3 of touch sensible chip U1 is connected with induction end S3, and via external capacitive C4 ground connection; The pin CIN4 of touch sensible chip U1 is connected with induction end S4, and via external capacitive C5 ground connection; The pin CIN5 of touch sensible chip U1 is connected with induction end S5, and via external capacitive C6 ground connection; The pin CIN6 of touch sensible chip U1 is connected with induction end S6, and via external capacitive C7 ground connection; The pin CIN7 of touch sensible chip U1 is connected with induction end S7, and via external capacitive C8 ground connection; The pin OUT0 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R1, and via the I/O interface of resistance R10 connection control chip; The pin OUT1 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R2, and via the I/O interface of resistance R11 connection control chip; The pin OUT2 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R3, and via the I/O interface of resistance R12 connection control chip; The pin OUT3 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R4, and via the I/O interface of resistance R13 connection control chip; The pin OUT4 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R5, and via the I/O interface of resistance R14 connection control chip; The pin OUT5 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R6, and via the I/O interface of resistance R15 connection control chip; The pin OUT6 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R7, and via the I/O interface of resistance R16 connection control chip; The pin OUT7 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R8, and via the I/O interface of resistance R17 connection control chip; The pin GND ground connection of touch sensible chip U1; The pin RESET of touch sensible chip U1 and pin ASEL all via electric capacity C9 ground connection, and connects power supply VCC positive pole via resistance R20; The pin SCL of described touch sensible chip U1 can via the I of resistance R18 connection control chip
2c interface, also can direct ground connection; The pin SDA of described touch sensible chip U1 can via the I of resistance R19 connection control chip
2c interface, also can direct ground connection; The pin CIN0 of touch sensible chip U1 is respectively the input end of 8 touch sensible passages to pin CIN7, the pin OUT0 of touch sensible chip U1 is respectively the output terminal of 8 touch sensible passages to pin OUT7.Model is that the touch sensible chip U1 of ST08B can carry out inductance capacitance change by any non-conductive medium, can well with water segregation, by regulating the capacity of external capacitive and then regulating the sensitivity of level sensing; Described hot-water line can be PPR pipe.
During liquid level detector described in the utility model work, multiple induction end is vertically arranged in parallel in water dispenser, particularly, in induction end place plane and water dispenser, liquid level is parallel to each other.Because the dielectric coefficient of water is greater than air, certain water level point to be measured is covered by water and exposes aerial electric capacity and have notable difference in water dispenser, the change in measured medium face is utilized to cause capacitance variations, and then utilize touch inductor to identify the electric capacitance change of water level point to be measured, thus know SEA LEVEL VARIATION in water dispenser; The utility model water level detecting is accurate, structure simple, economy and durability.The utility model can across this medium of induction end detect in water dispenser SEA LEVEL VARIATION, understand water level in real time, device itself does not affect by factors such as burn into incrustation scales, can work long hours; Adopt few, the cost of components and parts also relative moderate, less demanding to surrounding environment.Fig. 2 shows circuit theory diagrams of the present utility model, induction end quantity shown in it is 8, when practical application, induction end quantity can not meet user when requiring, can arrange multiple circuit identical with the circuit structure in Fig. 2, to realize the detection being greater than 8 water levels.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and inventive concept thereof and replace or change, all should be encompassed within protection domain of the present utility model.
Claims (5)
1. a water dispenser liquid level detector, described liquid level detector is connected with the control chip receiving liquid level signal, it is characterized in that described liquid level detector comprises:
Multiple induction end;
At least one touch inductor; Described touch inductor has multiple touch sensible passage; Described induction end is connected with the input end of described touch sensible passage, and via external capacitive ground connection; The output terminal being connected with the touch sensible passage of induction end connects power supply VCC positive pole via pull-up resistor, and is connected with the I/O interface of described control chip;
For the power supply VCC powering to described touch inductor.
2. water dispenser liquid level detector according to claim 1, is characterized in that multiple induction end is vertically arranged in parallel in water dispenser.
3. water dispenser liquid level detector according to claim 1, is characterized in that described induction end adopts copper sheet; Described copper sheet is encapsulated in food-grade hot-water line.
4. water dispenser liquid level detector according to claim 1, is characterized in that described induction end adopts printed circuit board (PCB), and this printed circuit board (PCB) comprises insulating substrate and is arranged on the Copper Foil on described insulating substrate; Described printed circuit board (PCB) is encapsulated in food-grade hot-water line.
5. the water dispenser liquid level detector according to any one of Claims 1-4, is characterized in that described induction end has 8, is respectively induction end S0, S1, S2, S3, S4, S5, S6 and S7; Described touch inductor employing model is the touch sensible chip U1 of ST08B; The pin CIN0 of touch sensible chip U1 is connected with induction end S0, and via external capacitive C1 ground connection; The pin CIN1 of touch sensible chip U1 is connected with induction end S1, and via external capacitive C2 ground connection; The pin CIN2 of touch sensible chip U1 is connected with induction end S2, and via external capacitive C3 ground connection; The pin CIN3 of touch sensible chip U1 is connected with induction end S3, and via external capacitive C4 ground connection; The pin CIN4 of touch sensible chip U1 is connected with induction end S4, and via external capacitive C5 ground connection; The pin CIN5 of touch sensible chip U1 is connected with induction end S5, and via external capacitive C6 ground connection; The pin CIN6 of touch sensible chip U1 is connected with induction end S6, and via external capacitive C7 ground connection; The pin CIN7 of touch sensible chip U1 is connected with induction end S7, and via external capacitive C8 ground connection; The pin OUT0 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R1, and via the I/O interface of resistance R10 connection control chip; The pin OUT1 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R2, and via the I/O interface of resistance R11 connection control chip; The pin OUT2 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R3, and via the I/O interface of resistance R12 connection control chip; The pin OUT3 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R4, and via the I/O interface of resistance R13 connection control chip; The pin OUT4 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R5, and via the I/O interface of resistance R14 connection control chip; The pin OUT5 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R6, and via the I/O interface of resistance R15 connection control chip; The pin OUT6 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R7, and via the I/O interface of resistance R16 connection control chip; The pin OUT7 of touch sensible chip U1 connects power supply VCC positive pole by pull-up resistor R8, and via the I/O interface of resistance R17 connection control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520431372.XU CN204705388U (en) | 2015-06-19 | 2015-06-19 | Water dispenser liquid level detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520431372.XU CN204705388U (en) | 2015-06-19 | 2015-06-19 | Water dispenser liquid level detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204705388U true CN204705388U (en) | 2015-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520431372.XU Expired - Fee Related CN204705388U (en) | 2015-06-19 | 2015-06-19 | Water dispenser liquid level detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204705388U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018035708A1 (en) * | 2016-08-23 | 2018-03-01 | 深圳市赛亿科技开发有限公司 | Water level detection device |
| CN111527401A (en) * | 2017-12-15 | 2020-08-11 | 罗伯特·博世有限公司 | Sensor device for detecting an electrically conductive medium and method for operating a sensor device |
-
2015
- 2015-06-19 CN CN201520431372.XU patent/CN204705388U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018035708A1 (en) * | 2016-08-23 | 2018-03-01 | 深圳市赛亿科技开发有限公司 | Water level detection device |
| CN108139259A (en) * | 2016-08-23 | 2018-06-08 | 深圳市赛亿科技开发有限公司 | A kind of water-level detecting device |
| CN111527401A (en) * | 2017-12-15 | 2020-08-11 | 罗伯特·博世有限公司 | Sensor device for detecting an electrically conductive medium and method for operating a sensor device |
| US11761808B2 (en) * | 2017-12-15 | 2023-09-19 | Robert Bosch Gmbh | Sensor device for detecting electrically conductive media, and method for operating the sensor device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20160619 |