TDS sterilization probe for water purifier

Abstract

According to the TDS sterilization probe for the water purifier, an anode probe, a cathode probe, a first controlled switch, an MCU (Microprogrammed Control Unit) main control module and a first power supply are arranged in a matched manner, so that a trace amount of ozone can be generated during water production, bacteria in a pipeline can be killed, the cost is saved, and the problem of lack of a sterilization function is solved; therefore, the water outlet quality of the water purifier is improved. Through the arrangement of the TDS detection module, the system integrates TDS detection and sterilization functions and centralized control, so that the integration of multiple functions is realized, and the overall performance and efficiency of the system are improved. When the water purifier does not produce water, the MCU main control module can directly read the voltage values at the two ends of the electrode to carry out TDS detection by switching off the first controlled switch, and unnecessary energy consumption is avoided. Due to the arrangement of the first power supply, the electrode assembly can provide enough voltage to generate ozone, and the key point is to achieve the sterilization function.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, specifically to a TDS sterilization probe for water purifiers. Background Technology

[0002] Water purifiers, also widely known as water purification devices or water purification equipment, primarily function to filter out impurities, harmful microorganisms, heavy metals, and chemical residues from water, thereby providing clean and safe drinking water. TDS, short for Total Dissolved Solids, represents the total amount of inorganic and organic matter dissolved in water. TDS values ​​are usually expressed in milligrams per liter (mg / L) or micrograms per liter (μg / L) and are an important indicator of water quality. In the fields of water treatment and water quality monitoring, TDS values ​​are frequently used to assess the purity of water and its suitability for drinking or specific uses.

[0003] Chinese patent CN217279321U discloses a control circuit for an RO module with TDS detection. This circuit has TDS detection and RO module control functions, but it does not include a sterilization mechanism. Although water purifiers themselves have very low bacterial content, bacteria can multiply rapidly and proliferate in the internal water circuits of the machine if it is not used for a long time. Therefore, sterilization is particularly important for water purifiers. Existing water purifiers also use UV sterilization, which is effective, but it only disinfects at the point of use and is relatively expensive, making it unsuitable for cost savings.

[0004] Therefore, it is particularly important to develop a water purifier probe that can both detect water quality and effectively kill bacteria. Utility Model Content

[0005] The purpose of this invention is to provide a TDS sterilization probe for water purifiers. This probe generates trace amounts of ozone when energized through a dual-probe structure, thereby achieving sterilization.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A TDS sterilization probe for a water purifier includes: a probe 1, one end of which is connected to a dual probe 2, and the other end of which is connected via a wire harness 3 to a TDS sterilization circuit board 4 electrically connected to the dual probe 2; the dual probe 2 is divided into an anode probe 21 and a cathode probe 22; the anode probe 21 and the cathode probe 22 are placed in the pure water pipeline of the water purifier, and when the dual probe 2 is energized, it can generate trace amounts of ozone in the pure water pipeline;

[0008] The TDS sterilization circuit board 4 includes:

[0009] TDS detection module 41, which is electrically connected to dual probe 2, is used as a TDS sensor when the dual probe is not powered.

[0010] The first controlled power supply module 42 is used to control the power supply to the dual probes 2, so as to switch between energized and de-energized states as needed.

[0011] Preferably, the TDS sterilization circuit board 4 further includes: an MCU main control module 43 and a second controlled power supply module 44 for supplying power to other parts of the sterilization circuit board 4; the MCU main control module 43 is provided with a receiving control terminal 45 for receiving TDS data detected by the TDS detection module 41 and controlling the power-on state of the first controlled power supply module 42 / second controlled power supply module 44.

[0012] Preferably, the first controlled power supply module 42 includes: a first power supply 421 and a first controlled switch 422 connected between the first power supply 421 and the anode probe 21; the first controlled switch 422 is controlled by the MCU main control module 43; the first controlled switch 422 is open when the water purifier is not producing water, so that the MCU main control module 43 can read the voltage value at both ends of the dual probes 2 for TDS detection, and is closed when the water purifier 1 is producing water, so that the first power supply 421 powers the anode probe 21 and the cathode probe 22.

[0013] Preferably, the second controlled power supply module 44 includes: a second power supply 441 and a second controlled switch 442 connected between the second power supply 441 and the anode probe 21; the second controlled switch 442 is controlled by the MCU main control module 43; the second controlled switch 442 is used to open when the water purifier is turned on, so that the TDS detection module 41 is electrically connected to the MCU main control module 43 and used as a TDS sensor.

[0014] Preferably, the first power supply is a 24V DC power supply; the second power supply is a 5V DC power supply.

[0015] Preferably, a first resistor R1 is provided between the 5V DC power supply and the MCU main control module 43.

[0016] Preferably, the receiving control terminal 45 is electrically connected to the positive terminal of the second controlled switch 442 through the second resistor R2, and then electrically connected to the TDS detection module 41 through the second controlled switch 442. One end of the TDS detection module 41 is electrically connected to the anode probe 21 and the other end is electrically connected to the cathode probe 22. The cathode probe 22 is grounded.

[0017] Preferably, a first capacitor C1 is electrically connected between the receiving control terminal 45 and the ground terminal.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This design, through the coordinated setup of dual-probe anode and cathode probes, a first controlled switch, an MCU main control module, and a first power supply, generates trace amounts of ozone during water production, effectively killing bacteria within the pipes. This solves the problem of insufficient sterilization function while saving costs, thereby improving the water quality of the purifier. The TDS detection module integrates TDS detection, sterilization, and centralized control, achieving multi-functional integration and improving the overall performance and efficiency of the system. Furthermore, when the purifier is not producing water, disconnecting the first controlled switch allows the MCU main control module to directly read the voltage values ​​across the electrodes for TDS detection, avoiding unnecessary energy consumption. Specifying a 24V DC power supply for the first power supply ensures sufficient voltage for the electrode assembly to generate ozone, crucial for achieving the sterilization function. The second power supply, a 5V DC power supply, matches the operating voltage of the MCU main control module, ensuring stable and efficient operation for data processing and system control. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the TDS sterilization probe in this case.

[0021] Figure 2 This is the schematic diagram of the TDS sterilization circuit board in this case.

[0022] Figure 3 This is the schematic diagram of the TDS sterilization circuit board in this case. Detailed Implementation

[0023] The following examples provide a more detailed description of the features and other related characteristics of this utility model, to facilitate understanding by those skilled in the art:

[0024] like Figure 1 As shown, the TDS sterilization probe of this embodiment includes a probe 1, a dual probe 2 (anode probe 21 and cathode probe 22), a wiring harness 3, and a TDS sterilization circuit board 4. The probe 1 is connected to the TDS sterilization circuit board 4 via the wiring harness 3 for electrical connection with the dual probe 2. The anode probe 21 and cathode probe 22 are placed in the pure water pipeline 110 of the water purifier 100. When the dual probe 2 is energized, it can generate trace amounts of ozone in the pure water pipeline.

[0025] As one specific implementation, the TDS sterilization circuit board 4 comprises:

[0026] TDS detection module 41: Electrically connected to dual probe 2, when dual probe 2 is not powered, it acts as a TDS sensor to detect the TDS content in the water.

[0027] The first controlled power supply module 42 includes a first power supply 421 (24V DC power) and a first controlled switch 422. The first controlled switch 422 is connected between the first power supply 421 and the anode probe 21 and is controlled by the MCU main control module 43. When the water purifier is not producing water, the first controlled switch 422 is open, and the MCU main control module 43 reads the voltage value across the dual probes 2 for TDS detection; when the water purifier is producing water, the first controlled switch 422 is closed, and the first power supply 421 powers the anode probe 21 and the cathode probe 22, generating trace amounts of ozone for sterilization.

[0028] MCU main control module 43: It is equipped with a receiving control terminal 45, which is used to receive data from TDS detection module 41 and control the power-on status of the first controlled power supply module 42 and the second controlled power supply module 44.

[0029] The second controlled power supply module 44 includes a second power supply 441 (5V DC power) and a second controlled switch 442. The second controlled switch 442 is connected between the second power supply 441 and the anode probe 21, and is controlled by the MCU main control module 43. When the water purifier 100 is turned on, the second controlled switch 442 opens, supplying power to the TDS detection module 41, enabling it to function as a TDS sensor. A first resistor R1 is provided between the 5V DC power supply and the MCU main control module 43; thus, the first resistor R1 acts as a step-down resistor, providing current limiting and voltage division, preventing current surges or voltage fluctuations that may occur when the 5V DC power supply is directly connected to the MCU main control module, thereby protecting the MCU from damage. Furthermore, during system startup or power fluctuations, the step-down resistor provides additional buffering to ensure stable power supply to the MCU. In specific implementations, the first controlled switch 422 and the second controlled switch 442 can be relays.

[0030] In one specific implementation, the receiving control terminal 45 of the MCU main control module 43 is electrically connected to the positive terminal of the second controlled switch 442 through the second resistor R2, and then electrically connected to the TDS detection module 41 after the second controlled switch 442 is closed. In this way, the second resistor R2 can be set as a current-limiting resistor to protect the receiving control terminal 45 from damage caused by excessive current.

[0031] In one specific implementation, one end of the TDS detection module 41 is electrically connected to the anode probe 21, and the other end is electrically connected to the cathode probe 22, with the cathode probe 22 grounded. This electrical connection between the TDS detection module 41 and the anode probe 21 and cathode probe 22 ensures that it can accurately detect the total dissolved solids in the water.

[0032] In one specific implementation, a first capacitor C1 is electrically connected between the receiving control terminal 45 and the ground terminal for filtering. Thus, the first capacitor C1 acts as a filter, smoothing the voltage signal read by the receiving control terminal 45, reducing noise caused by power fluctuations or electromagnetic interference, and helping the MCU main control module to more accurately read the voltage values ​​across the electrodes, thereby improving the accuracy of TDS detection.

[0033] In summary, the specific sterilization mechanism works as follows: When the water purifier produces water, the first controlled switch 422 is closed, and the 24V power supply powers the dual probes. The generated trace amounts of ozone flow with the water in the pipes and are released from the faucet. After the faucet is turned off, the trace amounts of ozone in the pipes continue to exist for several minutes to more than ten minutes, which is long enough to kill the bacteria in the pipes.

[0034] As mentioned above, considering that the desalination rate of the water purifier is less than 98%, the water in the pure water pipeline has a certain degree of conductivity, which helps to generate trace amounts of ozone. Moreover, the amount of ozone generated is controlled within a safe range to ensure it is harmless to the human body, while effectively killing bacteria in the pipeline. Therefore, this invention, through the coordinated setup of dual probes 2 (anode probe 21 and cathode probe 22), a first controlled switch, an MCU main control module, and a first power supply, can generate trace amounts of ozone during water production, achieving the killing of bacteria in the pipeline. This solves the problem of lacking sterilization function while saving costs, thereby improving the water quality output of the water purifier. The TDS detection module integrates TDS detection, sterilization, and centralized control into the sterilization probe, achieving multi-functional integration and improving overall performance and efficiency. Furthermore, when the water purifier is not producing water, disconnecting the first controlled switch allows the MCU main control module to directly read the voltage value across the electrodes for TDS detection, while avoiding unnecessary energy consumption. The first power supply is set to 24V DC to ensure that the electrode assembly can provide sufficient voltage to generate ozone, which is crucial for achieving the sterilization function. The second power supply is set to 5V DC, which matches the operating voltage of the MCU main control module, ensuring that the MCU can operate stably and efficiently for data processing and system control.

[0035] As stated above, this case protects a TDS sterilization probe used in water purifiers, and all technical solutions that are the same as or similar to this case should be considered to fall within the scope of protection of this case.

Claims

1. A TDS sterilization probe for water purifiers, characterized in that, include: The probe (1) is connected to a dual probe (2) at one end and to a TDS sterilization circuit board (4) electrically connected to the dual probe (2) at the other end via a wire harness (3); the dual probe (2) is divided into an anode probe (21) and a cathode probe (22); the anode probe (21) and the cathode probe (22) are used to be placed in the pure water pipeline of the water purifier. When the dual probe (2) is energized, it can generate a small amount of ozone in the pure water pipeline; The TDS sterilization circuit board (4) includes: TDS detection module (41), which is electrically connected to dual probe (2), is used as a TDS sensor when dual probe (2) is not powered; The first controlled power supply module (42) is used to control the power supply to the dual probes (2) to switch between powered and unpowered states as needed.

2. The TDS bactericidal probe according to claim 1, characterized in that, The TDS sterilization circuit board (4) further includes: an MCU main control module (43) and a second controlled power supply module (44) for supplying power to other parts of the sterilization circuit board (4); the MCU main control module (43) is provided with a receiving control terminal (45) for receiving TDS data detected by the TDS detection module (41) and controlling the power-on state of the first controlled power supply module (42) / the second controlled power supply module (44).

3. The TDS bactericidal probe according to claim 2, characterized in that, The first controlled power supply module (42) includes: a first power supply (421) and a first controlled switch (422) connected between the first power supply (421) and the anode probe (21); the first controlled switch (422) is controlled by the MCU main control module (43); the first controlled switch (422) is disconnected when the water purifier is not producing water, so that the MCU main control module (43) can read the voltage value at both ends of the dual probes (2) for TDS detection, and is closed when the water purifier (1) is producing water, so that the first power supply (421) powers the anode probe (21) and the cathode probe (22).

4. The TDS bactericidal probe according to claim 3, characterized in that, The second controlled power supply module (44) includes: a second power supply (441) and a second controlled switch (442) connected between the second power supply (441) and the anode probe (21); the second controlled switch (442) is controlled by the MCU main control module (43); the second controlled switch (442) is used to open when the water purifier is turned on, so that the TDS detection module (41) is electrically connected to the MCU main control module (43) and used as a TDS sensor.

5. The TDS bactericidal probe according to claim 4, characterized in that, The first power supply is a 24V DC power supply; the second power supply is a 5V DC power supply.

6. The TDS bactericidal probe according to claim 5, characterized in that, A first resistor (R1) is provided between the 5V DC power supply and the MCU main control module (43).

7. The TDS bactericidal probe according to claim 2, characterized in that, The receiving control terminal (45) is electrically connected to the positive terminal of the second controlled switch (442) through the second resistor (R2), and then electrically connected to the TDS detection module (41) through the second controlled switch (442). One end of the TDS detection module (41) is electrically connected to the anode probe (21), and the other end is electrically connected to the cathode probe (22). The cathode probe (22) is grounded.

8. The TDS bactericidal probe according to claim 7, characterized in that, The receiving control terminal (45) and the ground terminal are electrically connected to a first capacitor (C1).

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