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CN-224216242-U - Water leakage degree detection protection system

CN224216242UCN 224216242 UCN224216242 UCN 224216242UCN-224216242-U

Abstract

The utility model provides a degree detection protection system leaks, includes singlechip, protection control circuit, leaks detection circuit, reminds circuit and degree detecting plate leaks, protection control circuit and singlechip are connected to open and close the output through the singlechip control, leak detection circuit and singlechip are connected, in order to detect the signal transmission who whether leaks for the singlechip, remind the circuit to connect the singlechip, leak detection circuit and connect the degree detecting plate that leaks, in order to realize the reading to the degree of leaking through the degree detecting plate that leaks. According to the utility model, the singlechip, the protection control circuit, the water leakage detection circuit, the reminding circuit and the water leakage degree detection board are arranged, different resistance values are distinguished through the water leakage degree detection board, and then the resistance voltage division is carried out, so that the corresponding water leakage degree value is converted after different voltages are read by the singlechip port, the water leakage degree can be distinguished, the detection of the water leakage degree is realized, the distinguishing treatment is carried out, the different warning effects are reflected, and a user has wider operation space.

Inventors

  • XIANG FANG
  • ZHANG TAO
  • DENG WEIWEN
  • WAN LI
  • CHEN JIAYU

Assignees

  • 佛山市谱德电子科技有限公司

Dates

Publication Date
20260508
Application Date
20250711

Claims (10)

  1. 1. The water leakage degree detection protection system is characterized by comprising a single chip microcomputer (1), a protection control circuit (2), a water leakage detection circuit (3), a reminding circuit (4) and a water leakage degree detection plate (5), wherein the protection control circuit (2) is connected with the single chip microcomputer (1) and controls the opening and closing of output through the single chip microcomputer (1), the water leakage detection circuit (3) is connected with the single chip microcomputer (1) so as to transmit a detected water leakage signal to the single chip microcomputer (1), the reminding circuit (4) is connected with the single chip microcomputer (1), the water leakage detection circuit (3) is connected with the water leakage degree detection plate (5), and the water leakage degree is read through the water leakage degree detection plate (5).
  2. 2. The water leakage degree detection protection system according to claim 1, wherein the protection control circuit (2) comprises a resistor R16, a resistor R17, a resistor R18, a capacitor C9 and an optocoupler IC5, one end of the resistor R16 and one end of the capacitor C9 are respectively connected with a PR_P pin of the singlechip (1), the other end of the resistor R16 is connected with a pin 1 of the optocoupler IC5, the other end of the capacitor C9 is connected with a pin 2 of the optocoupler IC5, a pin 3 of the optocoupler IC5 is respectively connected with one end of the resistor R17 and one end of the resistor R18, and the other end of the resistor R18 is connected with power ground.
  3. 3. The water leakage degree detection and protection system according to claim 2, wherein the protection control circuit (2) further comprises a triode Q3 and a socket P5, wherein the 4 pin of the optocoupler IC5 is connected with the 1 pin of the socket P5, the other end of the resistor R17 is connected with the B pole of the triode Q3, the E pole of the triode Q3 is connected with the power ground, the C pole of the triode Q3 is connected with the 2 pin of the socket P5, and the socket P5 is externally connected with a water pump.
  4. 4. The water leakage degree detection and protection system according to claim 1, wherein the water leakage detection circuit (3) comprises a resistor R34, a resistor R36, a capacitor C12 and a capacitor C13, one end of the resistor R34 is connected with a power supply +5V, the other end of the resistor R34 is connected with one end of the capacitor C12, one end of the resistor R36 is connected with the other end of the resistor R34, the other end of the resistor R36 and one end of the capacitor C13 are respectively connected with a WL pin of the singlechip (1), and the other end of the capacitor C13 is connected with power supply ground.
  5. 5. The water leakage degree detection and protection system according to claim 4, wherein the water leakage detection circuit (3) further comprises a resistor R35 and a socket CN3, the other end of the capacitor C12 is connected with the 1 pin of the socket CN3, the 2 pin of the socket CN3 is connected with one end of the resistor R35, the other end of the resistor R35 is connected with the power ground, and the socket CN3 is externally connected with the water leakage degree detection plate (5).
  6. 6. The water leakage degree detection and protection system according to claim 1, wherein the reminding circuit (4) comprises a buzzer BUZ, a resistor R19 and a triode Q4, a pin 1 of the buzzer BUZ is connected with a C pole of the triode Q4, a pin 2 of the buzzer BUZ is connected with a power ground, a pole B of the triode Q4 is connected with one end of the resistor R19, the other end of the resistor R19 is connected with a PR_BUZ pin of the singlechip (1), and a pole E of the triode is connected with a power +5V.
  7. 7. The water leakage degree detection and protection system according to claim 1, wherein the front and the back of the water leakage degree detection plate (5) are respectively provided with a plurality of copper foils (6) contacted with water.
  8. 8. The water leakage detection and protection system according to claim 3, wherein the optocoupler IC5 is PC817, the resistors R16, R17 and R18 are oxide film resistors, the capacitor C9 is a ceramic capacitor, and the triode Q3 is TIP122.
  9. 9. The water leakage degree detection and protection system according to claim 5, wherein the resistor R34, the resistor R35 and the resistor R36 are oxide film resistors, the capacitor C13 and the capacitor C14 are ceramic chip capacitors, and the resistance of the resistor R34 is 200K.
  10. 10. The water leakage degree detection and protection system according to claim 6, wherein the resistor R19 is an oxide film resistor, the triode Q4 is S8550, and the buzzer BUZ is 1407N.

Description

Water leakage degree detection protection system Technical Field The utility model relates to the technical field of water detection circuits, in particular to a water leakage degree detection protection system. Background At present, the products on the market are basically used for physically isolating water sources, such as brushing three-proofing paint or filling waterproof glue, but only have the protection on a circuit board, and the water leakage of the whole machine is not recognized and warned correspondingly. The water leakage detection protection system mainly comprises a voltage comparator, a voltage comparator and a single chip microcomputer, wherein the voltage comparator is used for detecting whether the two sides of the terminal are conducted or not, so that loops are formed at the two sides of the terminal, the voltage of the positive end of the voltage comparator changes, and the voltage of the output port of the voltage comparator is used for changing a level signal at the port of the single chip microcomputer, so that the single chip microcomputer can distinguish whether water leakage exists or not. In the conventional water detection circuit system, as shown in fig. 8, the water detection terminals are connected to both sides of the terminal HEADER, the 1 pin of the terminal is grounded, the 2 pin of the terminal is connected to the 3 pin of the voltage comparator and is connected to the 5V power supply through the R8 electric appliance, the 2 pin of the voltage comparator is connected to the middle point of the R10 sliding rheostat, and the middle point resistance of the sliding rheostat is adjusted to realize fine adjustment of the comparison voltage value, so that the judging reference value for judging whether water leakage exists is adjusted. In general, the condition of adjustable R10 does not appear on the whole machine, so that when the value of R10 is determined, a single reference value can only detect whether water leakage exists or not, but cannot detect the degree of water leakage. Therefore, further improvements are needed. Disclosure of utility model The utility model aims to provide a water leakage degree detection protection system which has the advantages of simple structure, accurate detection, stability and reliability, capability of meeting the requirements of users and strong practicability, so as to overcome the defects of the prior art. The water leakage degree detection protection system designed according to the purpose is characterized by comprising a single chip microcomputer, a protection control circuit, a water leakage detection circuit, a reminding circuit and a water leakage degree detection plate, wherein the protection control circuit is connected with the single chip microcomputer and controls the opening and closing of output through the single chip microcomputer, the water leakage detection circuit is connected with the single chip microcomputer to transmit a detected signal of whether water leakage occurs to the single chip microcomputer, the reminding circuit is connected with the single chip microcomputer, and the water leakage detection circuit is connected with the water leakage degree detection plate to read the water leakage degree through the water leakage degree detection plate. The protection control circuit comprises a resistor R16, a resistor R17, a resistor R18, a capacitor C9 and an optocoupler IC5, wherein one end of the resistor R16 and one end of the capacitor C9 are respectively connected with a PR_P pin of the singlechip, the other end of the resistor R16 is connected with a1 pin of the optocoupler IC5, the other end of the capacitor C9 is connected with a2 pin of the optocoupler IC5, the 3 pin of the optocoupler IC5 is respectively connected with one end of the resistor R17 and one end of the resistor R18, and the other end of the resistor R18 is connected with power ground. The protection control circuit further comprises a triode Q3 and a socket P5, wherein the 4 pin of the optocoupler IC5 is connected with the 1 pin of the socket P5, the other end of the resistor R17 is connected with the B pole of the triode Q3, the E pole of the triode Q3 is connected with the power ground, the C pole of the triode Q3 is connected with the 2 pin of the socket P5, and the socket P5 is externally connected with a water pump. The water leakage detection circuit comprises a resistor R34, a resistor R36, a capacitor C12 and a capacitor C13, wherein one end of the resistor R34 is connected with a power supply +5V, the other end of the resistor R34 is connected with one end of the capacitor C12, one end of the resistor R36 is connected with the other end of the resistor R34, the other end of the resistor R36 and one end of the capacitor C13 are respectively connected with a WL pin of the singlechip, and the other end of the capacitor C13 is connected with the power supply ground. The water leakage detection circuit further comprises a resistor R35