CN209310984U - A kind of detection plate based on nine layers of filter element water purification apparatus - Google Patents
A kind of detection plate based on nine layers of filter element water purification apparatus Download PDFInfo
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- CN209310984U CN209310984U CN201821444236.4U CN201821444236U CN209310984U CN 209310984 U CN209310984 U CN 209310984U CN 201821444236 U CN201821444236 U CN 201821444236U CN 209310984 U CN209310984 U CN 209310984U
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Abstract
The utility model discloses a kind of detection plate based on nine layers of filter element water purification apparatus, detection plate includes detection enable end, leak output end, TL555I chip, resistance R1, resistance R3, capacitor C12, first switch device Q1, second switch device Q2, connector J1, detection mouth P1 and voltage detecting circuit；Detection enable end is connect with the master controller of nine layers of filter element water purification apparatus, and it is connect by Q2 with the collector of the four, the eight pins of TL555I chip and Q1, the base stage of Q1 is connect with leak output end, the third pin of TL555I chip is connect with leak output end, leak output end is connect with the master controller, connector J1 is connect with leak water detdction probe, the both ends of connector J1 are connect with the second pin of the emitter of Q1 and TL555I chip respectively, and external input voltage is connect after passing sequentially through detection mouth P1 and voltage detecting circuit with the master controller；Its effect is: being also convenient for carrying out voltage detecting while leak water detdction, overcomes the defect for needing to add additional detections plate in the prior art.
Description
Technical field
The utility model relates to detection technique fields, and in particular to a kind of detection plate based on nine layers of filter element water purification apparatus.
Background technique
In recent years, due to improvement of living standard, people increasingly pay attention to the safety of drinking water, but it is general originally
In water, usually there are bacterium, harmful substance, organic substance and suspended matters etc., generate a degree of influence to health,
So that water purifier (water filter) using more more and more universal.
In the use process of water purifier, it usually needs detect to some parameters of water purifier, understand convenient for user
The working condition of water purifier, in the prior art, it can be common that leak water detdction is carried out to water purifier, can only realize the function of leak water detdction
Can, function is excessively single, to carry out needing to add additional detection plate when other detection, using being inconvenient.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned the shortcomings of the prior art, and provide a kind of structure it is simple,
It is also convenient for carrying out a kind of detection plate based on nine layers of filter element water purification apparatus of voltage detecting while leak water detdction.
The technical solution that the utility model is taken are as follows: a kind of detection plate based on nine layers of filter element water purification apparatus, the detection plate packet
Include detection enable end, leak output end, TL555I chip, resistance R1, resistance R3, capacitor C12, first switch device Q1, second
Switching device Q2, connector J1, detection mouth P1 and voltage detecting circuit；The detection enable end and external nine layers of filter core being equipped with
The output end of the master controller of water purifier connects, the detection enable end also pass through after the resistance R1 with the second switch device
The grid of part Q2 connects, and the source electrode of the second switch device Q2 is connect with power supply VCC, the drain electrode of the second switch device Q2
It is connect respectively with the 8th pin of the collector of the first switch device Q1 and TL555I chip, the second switch device Q2
Drain electrode also connect with the 4th pin of TL555I chip by the resistance R3, the base stage of the first switch device Q1 and institute
The third pin connection of TL555I chip is stated, the third pin of the TL555I chip also connect with the leak output end, leads to
It crosses the leak output end to connect with the input terminal of the master controller of external nine layers of filter element water purification apparatus being equipped with, the first switch
The emitter of device Q1 is connect with one end of the 7th pin of TL555I chip and connector J1 respectively, and the connector J1's is another
One end is connect with the second pin of the TL555I chip, and the 6th pin of the TL555I chip leads to after connecting with second pin
The capacitor C12 ground connection is crossed, the connector J1 is connect with external leak water detdction probe, and external input voltage passes through described
Detection mouth P1 is connect with the input terminal of the voltage detecting circuit, the output end of the voltage detecting circuit and external nine be equipped with
The input terminal connection of the master controller of layer filter element water purification apparatus.
Preferably, the voltage detecting circuit include resistance R4 and resistance R5, the resistance R4 one end and the detection
Mouth P1 connection, nine layers of filter element water purification apparatus that the other end of the resistance R4 is equipped with one end of the resistance R5 and outside respectively
The input terminal of master controller connects, the other end ground connection of the resistance R5.
Preferably, the both ends of the resistance R5 are also parallel with capacitor C7.
Preferably, also inverse parallel has diode D1 between the source electrode and drain electrode of the second switch device Q2；It is arranged in this way
Convenient for being protected to second switch device Q2.
Preferably, resistance R2 is connected between the grid and source electrode of the second switch device Q2；In this way convenient for further
Second switch device Q2 is protected.
Preferably, the first switch device Q1 uses NPN type triode, and the second switch device Q2 uses P-channel
Metal-oxide-semiconductor.
Preferably, the collector of the first switch device Q1 is grounded after also passing through a capacitor C13, in this way convenient for power supply
It is filtered, improves the quality of power supply, keep the work of chip relatively reliable and stablize.
By adopting the above technical scheme, have the advantage that the utility model proposes one kind be based on nine layers of filter element water purification apparatus
Detection plate, by detection enable end input enable signal so that the leak water detdction plate is worked, when connector J1 connection
When leak water detdction probe detects water leakage, water leakage is exported by leak by the third pin of TL555I chip
End, is sent to the master controller processing of nine layers of filter element water purification apparatus, while passing through the voltage signal of input using detection mouth P1
Voltage detecting circuit is sent to the master controller processing of nine layers of filter element water purification apparatus, and entire detection plate structure is simple, in leak water detdction
While be also convenient for carrying out voltage detecting, overcome and need to add additional detection plate and inconvenient for use in the prior art
Defect.
Detailed description of the invention
Fig. 1 is the partial circuit schematic diagram of detection plate in the utility model embodiment；
Fig. 2 is the circuit diagram of voltage detecting circuit in the utility model embodiment.
Specific embodiment
In order to keep the technical problems to be solved in the utility model, technical solution and advantage clearer, below in conjunction with attached
Figure and specific embodiment are described in detail, and the following examples illustrate the utility model, but it is practical new to be not limited to this
The range of type.It should be noted that nine layers of filter element water purification apparatus described in the text refers to Publication No.: nine cores of CN106746145A
Specific structure and connection relationship has been disclosed in water purifier, above-mentioned patent, and details are not described herein.
With reference to shown in Fig. 1, Fig. 2, a kind of detection plate based on nine layers of filter element water purification apparatus, leaking the detection plate includes that detection is enabled
End, leak output end, TL555I chip, resistance R1, resistance R3, capacitor C12, first switch device Q1, second switch device Q2,
Connector J1, detection mouth P1 and voltage detecting circuit；The master of the detection enable end and external nine layers of filter element water purification apparatus being equipped with
The output end of controller connects, and the detection enable end also passes through the grid after the resistance R1 with the second switch device Q2
Connection, the source electrode of the second switch device Q2 connect with power supply VCC, the drain electrode of the second switch device Q2 respectively with it is described
The collector of first switch device Q1 is connected with the 8th pin of TL555I chip, and the drain electrode of the second switch device Q2 is also logical
It crosses the resistance R3 to connect with the 4th pin of TL555I chip, the base stage of the first switch device Q1 and the TL555I core
The third pin of piece connects, and the third pin of the TL555I chip is also connect with the leak output end, passes through the leak
The input terminal of the master controller for nine layers of filter element water purification apparatus that output end is equipped with outside is connect, the hair of the first switch device Q1
Emitter-base bandgap grading is connect with one end of the 7th pin of TL555I chip and connector J1 respectively, the other end of the connector J1 with it is described
The second pin of TL555I chip connects, and the 6th pin of the TL555I chip passes through the capacitor after connecting with second pin
C12 ground connection, the connector J1 are connect with external leak water detdction probe, external input voltage by the detection mouth P1 and
The input terminal of the voltage detecting circuit connects, the output end of the voltage detecting circuit and external nine layers of filter core water purification being equipped with
The input terminal of the master controller of device connects.
In application, the detection enable end that will test the offer on plate is connect with the master controller of nine layers of filter element water purification apparatus, it is main
When controller exports enable signal, keep the leak water detdction plate in running order, connector J1 connection leak water detdction probe, and will
The water leakage detected is sent to TL555I chip, and the third pin of TL555I chip exports water leakage by leak
End, is sent to the master controller processing of nine layers of filter element water purification apparatus, to realize that leak water detdction simultaneously will be defeated using detection mouth P1
The voltage signal entered is handled by the master controller that voltage detecting circuit is sent to nine layers of filter element water purification apparatus, entire detection plate structure
Simply, it is also convenient for carrying out voltage detecting while leak water detdction, overcomes and need to add additional detection plate in the prior art,
And defect inconvenient for use；In Fig. 1, PF1 is that the master controller of nine layers of filter element water purification apparatus is sent to the enabled of detection enable end
Signal, PF0 are that leak output end is sent to the water leakage of nine layers of filter element water purification apparatus, and in Fig. 2, VIN is external input voltage,
AN2 is the output signal of voltage detecting circuit.
Further, the operation is stable of nine layers of filter element water purification apparatus is improved in order to realize the function of voltage detecting with reference to Fig. 2
Property, the voltage detecting circuit includes resistance R4 and resistance R5, and one end of the resistance R4 is connect with the detection mouth P1, described
The other end of resistance R4 is defeated with the master controller of one end of the resistance R5 and external nine layers of filter element water purification apparatus being equipped with respectively
Enter end connection, the other end ground connection of the resistance R5.In this way, one end of resistance R4 is the input terminal of voltage detecting circuit,
One end of resistance R5 is the output end of voltage detecting circuit.
Further, with reference to Fig. 2, in order to improve the accuracy of voltage detecting, the both ends of the resistance R5 are also parallel with electricity
Hold C7；Setting is filtered the voltage signal of acquisition in this way, and reducing interference bring influences.
Further, in order to be protected to second switch device Q2, the source electrode of the second switch device Q2 and drain electrode
Between also inverse parallel have diode D1.
Further, resistance R2 is connected between the grid and source electrode of the second switch device Q2.
Further, in order to guarantee switching device work reliability, the first switch device Q1 use three pole of NPN type
Pipe, the second switch device Q2 use P-channel metal-oxide-semiconductor.
Further, for the ease of being filtered to power supply, improve the quality of power supply, keep the work of chip relatively reliable and
Stablize, the collector of the first switch device Q1 is grounded after also passing through a capacitor C13.
This detection plate structure is simple, can match with the master board of water purifier, realizes the leak to water purifier and electricity
The mainboard of the detection plate and other devices can also be used, have good portability, conducive to other set is generalized to by pressure detection
Standby field.
Finally, it should be noted that foregoing description is only specific embodiment of the present utility model, but the utility model
Protection scope is not limited thereto, the technical scope that anyone skilled in the art discloses in the utility model
Interior, any changes or substitutions that can be easily thought of, should be covered within the scope of the utility model.
Claims (5)
1. a kind of detection plate based on nine layers of filter element water purification apparatus, which is characterized in that the detection plate is defeated including detection enable end, leak
Outlet, TL555I chip, resistance R1, resistance R3, capacitor C12, first switch device Q1, second switch device Q2, connector J1,
Detection mouth P1 and voltage detecting circuit；The detection enable end is defeated with the master controller of external nine layers of filter element water purification apparatus being equipped with
Outlet connection, the detection enable end is connect after also passing through the resistance R1 with the grid of the second switch device Q2, described
The source electrode of second switch device Q2 is connect with power supply VCC, the drain electrode of the second switch device Q2 respectively with the first switch
The collector of device Q1 is connected with the 8th pin of TL555I chip, and the drain electrode of the second switch device Q2 also passes through the electricity
Resistance R3 is connect with the 4th pin of TL555I chip, the base stage of the first switch device Q1 and the third of the TL555I chip
Pin connection, the third pin of the TL555I chip also connect with the leak output end, by the leak output end and
The input terminal of the master controller for nine layers of filter element water purification apparatus that outside is equipped with connects, the emitter difference of the first switch device Q1
It is connect with one end of the 7th pin of TL555I chip and connector J1, the other end of the connector J1 and the TL555I core
The second pin of piece connects, and the 6th pin of the TL555I chip is grounded after connecting with second pin by the capacitor C12,
The connector J1 is connect with external leak water detdction probe, and external input voltage passes through the detection mouth P1 and the voltage
The input terminal of detection circuit connects, the master control of the output end of the voltage detecting circuit and external nine layers of filter element water purification apparatus being equipped with
The input terminal of device processed connects；
The voltage detecting circuit includes resistance R4 and resistance R5, and one end of the resistance R4 is connect with the detection mouth P1, institute
State the other end of resistance R4 respectively with the master controller of one end of the resistance R5 and external nine layers of filter element water purification apparatus being equipped with
Input terminal connection, the other end ground connection of the resistance R5；The both ends of the resistance R5 are also parallel with capacitor C7.
2. a kind of detection plate based on nine layers of filter element water purification apparatus according to claim 1, which is characterized in that described second opens
Closing also inverse parallel between the source electrode and drain electrode of device Q2 has diode D1.
3. a kind of detection plate based on nine layers of filter element water purification apparatus according to claim 2, the second switch device Q2's
Resistance R2 is connected between grid and source electrode.
4. a kind of detection plate based on nine layers of filter element water purification apparatus according to claim 3, which is characterized in that described first opens
It closes device Q1 and uses NPN type triode, the second switch device Q2 uses P-channel metal-oxide-semiconductor.
5. a kind of detection plate based on nine layers of filter element water purification apparatus according to claim 4, the first switch device Q1's
Collector is grounded after also passing through a capacitor C13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821444236.4U CN209310984U (en) | 2018-09-03 | 2018-09-03 | A kind of detection plate based on nine layers of filter element water purification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821444236.4U CN209310984U (en) | 2018-09-03 | 2018-09-03 | A kind of detection plate based on nine layers of filter element water purification apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209310984U true CN209310984U (en) | 2019-08-27 |
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ID=67669765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821444236.4U Active CN209310984U (en) | 2018-09-03 | 2018-09-03 | A kind of detection plate based on nine layers of filter element water purification apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN209310984U (en) |
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2018
- 2018-09-03 CN CN201821444236.4U patent/CN209310984U/en active Active
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