TWM591438U - Water purifier leakage safety protection device - Google Patents

Abstract

The utility model provides a water leakage safety protection device for a water purifier, which belongs to the field of water purifiers. It includes a water leakage detection module, a control module coupled to the water leakage detection module, and a solenoid valve module coupled to the control module; the water leakage detection module includes a water leakage detection for detecting whether there is water at the bottom of the water purifier housing The interface, the first resistor and the first capacitor. One end of the first capacitor is connected in series with the first resistor to the power supply, and the other end is grounded. The water leakage detection interface is connected in parallel to both ends of the first capacitor; The node is coupled to the control module, the water leakage detection interface outputs a first trigger signal to the control module when the water leakage detection interface detects that there is water at the bottom of the housing of the water purifier; the control module is used to control when the first trigger signal is received The solenoid valve module closes the water inlet of the water purifier; the utility model can stop the water inlet of the water purifier in time when the water purifier leaks, thereby avoiding damage to the environment and property.

Description

Water leakage safety protection device for water purifier

The utility model relates to the field of water purifiers, in particular to a water purifier leak detection and protection system.

Water purifiers, also called water purifiers, water purifiers or drinking fountains, are water treatment equipment that performs deep filtration and purification treatment of water quality according to the requirements for the use of water. The water purifier is usually used as a small-scale purifier for domestic use. Then, in the process of using the water purifier, due to external factors or internal factors, the water purifier may leak. At this time, if the water inlet of the water purifier is not turned off, it may cause damage to the environment and property.

Therefore, the purpose of the utility model is to provide a water purifier leakage safety protection device, which can timely stop the water purifier when the water purifier is leaking, thereby avoiding damage to the environment and property.

The above technical object of the present invention is achieved by the following technical solutions; a water purifier leakage safety protection device, including: a water leakage detection module, a control module coupled to the water leakage detection module, and a coupling The solenoid valve module of the control module; the water leakage detection module includes a water leakage detection interface for detecting whether there is water at the bottom of the water purifier housing, a first resistor and a first capacitor, one end of the first capacitor and the first capacitor A resistor is serially coupled to the power supply and the other end is grounded. The water leakage detection interface is parallel to both ends of the first capacitor; the connection node of the first capacitor and the first resistor is coupled to the control module , When the water leakage detection interface detects that there is water at the bottom of the housing of the water purifier, the water leakage detection module outputs a first trigger signal to the control module; the control module is used to receive the first A trigger signal is used to control the solenoid valve module to close the water inlet of the water purifier.

Preferably, the device further includes a flow detection module coupled to the control module. The flow detection module is used to detect a continuous flow value of the water outlet of the water purifier. The flow detection module is located at When it is detected that the continuous flow value of the water outlet of the water purifier reaches a preset continuous flow value, a second trigger signal is output to the control module, and the control module receives the second trigger signal to turn off the water purification The water inlet of the filter.

Preferably, the device further includes a flow detection module coupled to the control module. The flow detection module is used to detect a cumulative flow value of the water outlet of the water purifier. The flow detection module is located at Detecting that the cumulative flow value of the outlet of the water purifier reaches a preset cumulative flow value and output a third trigger signal to the control module, and the control module receives the third trigger signal to turn off the water purifier Water inlet.

Preferably, the device further includes an alarm module coupled to the control module, the control module also outputs an alarm signal to the alarm module when receiving the third trigger signal, and the alarm module It is used to issue an alarm prompt when receiving the alarm signal.

The water purifier leakage safety protection device provided by the utility model has the following advantages; 1. Because the water flow will flow along the water purifier shell to the bottom of the water purifier shell when the water leaks, by setting the water leak detection interface to detect the water flow at the bottom of the water purifier shell , When there is water at the bottom of the water purifier shell, the water leakage detection interface is turned on, so that the water leakage detection module outputs the first trigger signal to the control module to control the solenoid valve module to close the water inlet of the water purifier, thereby ensuring the water purifier in time Water leakage protection effect to avoid damage to the environment and property; 2. By setting the flow detection module, it can detect the leakage of the water outlet of the water purifier. When the continuous flow value of the water outlet of the water purifier reaches the preset value, The flow detection module outputs a second trigger signal to the control module to control the solenoid valve module to close the water inlet of the water purifier, thereby avoiding continuous water leakage of the water purifier and causing damage to the environment and property; 3. Because the water purifier is used for too long , The internal consumables of the water purifier will be consumed and worn, which will have an impact on the water purification effect of the water purifier. By setting the flow detection module, it can detect the accumulated water flow of the water outlet of the water purifier. When the accumulated flow value reaches the preset accumulated flow value, the flow detection module outputs the first Two trigger signals to the control module to control the solenoid valve module to close the water inlet of the water purifier, avoiding the continued consumption and wear of internal consumables and affecting the water purification effect of the water purifier, and at this time the control module can also output an alarm signal To the alarm module to remind users, so that users can replace consumables in time.

1‧‧‧ Water leakage detection module

11‧‧‧Leakage detection interface

2‧‧‧Control module

3‧‧‧ Solenoid valve module

31‧‧‧Power supply unit

32‧‧‧Rectifier unit

33‧‧‧First filter unit

34‧‧‧ Voltage stabilizing unit

35‧‧‧Second filter unit

36‧‧‧ Solenoid valve control unit

37‧‧‧Solenoid valve

38‧‧‧Battery unit

4‧‧‧ water purifier

5‧‧‧Flow detection module

51‧‧‧ water flu detector

6‧‧‧Alarm module

7‧‧‧key module

Figure 1 is a block diagram of a module of a water purifier leakage safety protection device provided by this embodiment.

Figure 2 is a schematic diagram of the positional relationship between the water leakage detection interface and the water purifier.

FIG. 3 is a circuit schematic diagram of the water leakage safety protection device of the water purifier of this embodiment.

FIG. 4 is a module block diagram of the solenoid valve module in FIG. 1.

Fig. 5 is a circuit schematic diagram of another water leakage safety protection device for a water purifier provided in this embodiment.

The technical solution of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "level", "inner", "outer" The azimuth or position relationship indicated is based on the azimuth or position relationship shown in the drawings, only to facilitate the description of the present invention and simplify the description, rather than indicating or implying that the device or element referred to must have a specific orientation The azimuth structure and operation can not be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a Disassembly connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the connection between two components. For those of ordinary skill in the art, the above terms can be understood in specific situations Specific meaning in utility models

In addition, the technical features involved in different embodiments of the present invention described below can be combined as long as there is no conflict with each other; a water purifier leakage safety protection device, as shown in Figure 1, the device includes water leakage The detection module 1, the control module 2 coupled to the water leakage detection module 1, and the solenoid valve module 3 coupled to the control module 2. The water leakage detection module 1 is used to detect whether the water purifier is leaking. When the water leakage detection module 1 detects a water purifier leakage, it outputs a first trigger signal to the control module 2 so that the control module 2 controls the solenoid valve module 3 Close the water inlet of the water purifier.

As shown in FIG. 3, the water leakage detection module 1 includes a water leakage detection interface 11, a first capacitor C1, and a resistor R1. The first capacitor is the capacitor C1. One end of the capacitor C1 is grounded, the other end is connected in series with the resistor R1 and coupled to the VCC power supply, the water leakage detection interface 11 is connected in parallel across the capacitor C1, and the connection node of the capacitor C1 and the resistor R1 is coupled to the control module 2. Further, referring to FIG. 2, the water leakage detection interface 11 is provided at the bottom of the housing of the water purifier 4. Under normal circumstances, the water leakage detection interface 11 is in an open state. It is understandable that when the water purifier 4 leaks, the water flow will flow along the outer shell of the water purifier 4 to the bottom of the water purifier 4. Since the water can conduct electricity, the water flow contacts the water leakage detection interface 11 at this time, which will cause water leakage. The detection interface 11 is turned on, so that the water leakage detection module 1 outputs the first trigger signal to the control module 2.

In this embodiment, the control module 2 is an 8-bit MCU. The control module 2 has a first input terminal INT1 and a first output terminal OUT1. The first input terminal INT1 is coupled to the water leakage detection module 1 to receive the first trigger signal, and the first output terminal OUT1 is coupled to the solenoid valve module 3 to control the solenoid valve module 3 when the first trigger signal is received Close the water inlet of the water purifier.

As shown in FIG. 4, the solenoid valve module 3 includes a power unit 31, a rectifier unit 32 coupled to the power unit 31, a first filter unit 33 coupled to the rectifier unit 32, and a first filter unit 33 coupled to Voltage stabilizing unit 34, a second filter unit 35 coupled to the voltage stabilizing unit 34, a solenoid valve control unit 36 coupled to the second filter unit 35, and a solenoid valve control unit 36 coupled to switch the water purifier The solenoid valve 37 of the water inlet. In this embodiment, the power supply unit 31 is specifically an AC 24V power supply; the rectifier unit 32 is specifically It is the MB6 rectifier bridge; the voltage stabilizing unit 34 is specifically the XL2009 chip. The XL2009 chip is a switching step-down DC-DC converter chip, which converts the power supply 24V voltage signal to a 5V voltage signal; the solenoid valve control unit 36 is specifically a TC118 chip, which For driving the solenoid valve 37. Further, the power end of the solenoid valve control unit 36 is coupled to the second filter unit 35, and the input end of the solenoid valve control unit 36 is coupled to the control module 2, when the control module 2 receives the first trigger signal, it controls The module 2 drives the solenoid valve 37 through the solenoid valve control unit 36 to close the water inlet of the water purifier. As shown in FIG. 4, the solenoid valve module 3 includes a power unit 31, a rectifier unit 32 coupled to the power unit 31, and a coupling The first filter unit 33 connected to the rectifier unit 32, the voltage stabilizing unit 34 coupled to the first filter unit 33, the second filter unit 35 coupled to the voltage stabilizing unit 34, and the electromagnetic coupling to the second filter unit 35 The valve control unit 36 and the solenoid valve 37 coupled to the solenoid valve control unit 36 and used for opening and closing the water inlet of the water purifier. In this embodiment, the power supply unit 31 is specifically an AC 24V power supply; the rectifier unit 32 is specifically an MB6 rectifier bridge; the voltage stabilizing unit 34 is specifically an XL2009 chip, and the XL2009 chip is a switching step-down DC-DC conversion chip, which converts the power supply 24V voltage The signal is converted into a 5V voltage signal; the solenoid valve control unit 36 is specifically a TC118 wafer, which is used to drive the solenoid valve 37. Further, the power end of the solenoid valve control unit 36 is coupled to the second filter unit 35, and the input end of the solenoid valve control unit 36 is coupled to the control module 2, when the control module 2 receives the first trigger signal, it controls The module 2 drives the solenoid valve 37 through the solenoid valve control unit 36 to close the water inlet of the water purifier.

Further, the solenoid valve module 3 further includes a battery unit 38 coupled to the solenoid valve control unit 36 to provide the solenoid valve control unit 36 with a backup 5V power signal when the power supply unit 31 stops supplying power.

As shown in FIG. 5, in some embodiments, the control module 2 further has a second input terminal INT2. The device further includes a flow detection module 51 coupled to the second input terminal INT2 of the control module 2. The flow detection module 51 is used to detect the continuous flow value of the water purifier outlet. The flow detection module 51 outputs a second trigger signal to the control module when it detects that the continuous flow value of the water purifier outlet reaches the preset continuous flow value Group 2, the control module 2 receives the second trigger signal to close the water inlet of the water purifier.

Specifically, the flow detection module 51 includes a water flow sensor, a resistor R2, a resistor R3, and a capacitor C2. The first end of the water flu detector is coupled to the VCC power supply, and the second end is coupled to the resistor R2 and then grounded. The output terminal of the sensor is coupled to the second input terminal INT2 of the control module 2. One end of the resistor R3 is coupled to the VCC power supply, and the other end is connected in series with the capacitor C2 to ground. The output terminal of the water flue detector is also coupled to the connection node of the resistor R3 and the capacitor C2.

Further, the water flu detector is used to detect the water flow rate at the outlet of the water purifier. The water flu detector is preset with a preset continuous flow value, and when it detects that the continuous water flow at the outlet of the water purifier reaches the preset continuous flow value, it outputs a second trigger signal to the control module 2, so that the control module 2 Control the solenoid valve module 3 Close the water inlet of the water purifier. It can be understood that, in order to avoid false triggering during normal water usage, the preset continuous flow value may be set to be much greater than the continuous flow value during normal water use. For example, the preset continuous flow value can be set to 100L. It is understandable that the continuous flow value does not reach 100L when the user normally uses water, so only when the water outlet of the water purifier continuously leaks and is not discovered by the user can it reach 100L. Continuous flow value, at this time, when the continuous flow value at the outlet of the water purifier reaches 100L, closing the water inlet of the water purifier can effectively prevent the water purifier from continuously leaking, thereby avoiding damage to the environment and property.

Further, the flow detection module 51 is also used to detect the cumulative flow value of the water purifier outlet. The flow detection module 51 outputs a third trigger signal when detecting that the cumulative flow value of the water purifier outlet reaches the preset cumulative flow value To the control module 2, the control module 2 closes the water inlet of the water purifier when receiving the third trigger signal. Specifically, the water flu detector also presets a preset cumulative flow value, and when the water flu detector detects that the cumulative flow value of the water purifier outlet reaches its preset cumulative flow value, it outputs a third trigger signal to the control mode Group 2 controls the solenoid valve module 3 to close the water inlet of the water purifier.

After the water purifier is used for a long time, its internal consumables will consume and wear, and when the internal consumables are worn to a certain extent, it will affect the water purification effect of the water purifier. Therefore, the cumulative flow value of the water outlet of the water purifier is detected by the flow detection module 51. When the cumulative flow value reaches the preset cumulative flow value, the water inlet of the water purifier is closed, and the water inlet and water purification of the water purifier are stopped in time. When the internal consumables are not worn out and the water purification effect is affected, the continuous consumption of the internal consumables is stopped in a timely manner, thereby ensuring the water purification quality and effect of the water purifier.

Further, the control module 2 also has a second output terminal OUT2 and a third input terminal INT3, the device It also includes an alarm module 6 coupled to the second output terminal OUT2 and a key module 7 coupled to the third input terminal INT3.

When the control module 2 receives the third trigger signal, it also outputs an alarm signal to the alarm module 6 to make the alarm give a prompt, prompting the user to replace the internal consumables in time. The alarm module 6 includes a resistor R4, a resistor R5, a PNP transistor Q1, and a buzzer H. The base of the PNP transistor Q1 is coupled to the second output terminal OUT2 of the control module 2 after the resistor R4 is connected in series, the collector is grounded, and the emitter is connected to the VCC power source in series with the resistor R5, and the buzzer H is connected in parallel to the resistor R5 Both ends. Under normal circumstances, the second output terminal OUT2 of the control module 2 outputs a high-level signal to the PNP transistor to stop it; when the control module 2 receives the third trigger signal, the second output terminal OUT2 of the control module 2 The low-level alarm signal is output to the PNP transistor Q1 to turn on the PNP transistor Q1, which in turn turns on the power supply circuit of the buzzer H, so that the buzzer H issues an alarm prompt to remind the user to replace the internal consumables in time.

The key module 7 includes a key S1, a resistor R6, and a capacitor C3. One end of the button S1 is grounded, the other end is connected in series with a resistor R6 and is coupled to a VCC power supply, a capacitor C3 is connected in parallel at both ends of the button S1, and the connection node of the button S1 and the resistor R6 is coupled to the third input terminal INT3 of the control module 2 . The key module 7 can be used to switch the working mode of the device and restart the solenoid valve 37. The working mode may include but is not limited to the first working mode and the second working module. The first working module may be in an alarm mode, that is, the alarm module 6 is in a working state; the second working mode may be an ordinary mode, that is, the alarm module 6 is in a completely inoperable state.

Further, when the button S1 is disconnected, the third input terminal INT3 of the control module 2 is connected to the power supply at a high state; when the button S1 is closed, the third input terminal INT3 of the control module 2 is grounded and then converted to low Level state, so as to switch the working mode of the control module 2.

The working principle of the present invention is: when the water leakage detection interface 11 is not in contact with the water flow, it is in the off state, the first input terminal INT1 of the control module 2 is coupled to the VCC power supply, and the first input terminal INT1 is high Level state; when the water flow touches the water leakage detection interface 11 at the bottom of the water purifier housing, the water leakage detection interface 11 is turned on, and then the first input terminal INT1 of the control module 2 is directly grounded, at this time the first input terminal INT1 goes from high Level state transition It becomes a low level state, and then triggers the control module 2 to control the solenoid valve module 3 to close the water inlet of the water purifier in time.

The water purifier leakage safety protection device provided by the utility model uses the leaked water flow as a medium for conducting the leak detection interface 11, as long as the water flow to the bottom of the water purifier shell after the water purifier leaks, the water inlet of the water purifier can be closed in time , In order to avoid damage to the environment and property in time.

Obviously, the above examples are only examples for clear explanation, and are not limitations on the implementation. For those of ordinary skill in the art, other different forms of changes or changes can be made based on the above description. There is no need to exhaustively list all implementations. And the obvious changes or changes derived from this are still within the protection scope created by the utility model.

1‧‧‧ Water leakage detection module

11‧‧‧Leakage detection interface

2‧‧‧Control module

3‧‧‧ Solenoid valve module

Claims (4)

A water leakage safety protection device for a water purifier is characterized by comprising: a water leakage detection module, a control module coupled to the water leakage detection module, and a solenoid valve module coupled to the control module; The water leakage detection module includes a water leakage detection interface for detecting whether there is water at the bottom of the water purifier housing, a first resistor and a first capacitor. One end of the first capacitor is coupled in series with the first resistor to the power supply and the other end is grounded , The water leakage detection interface is parallel to both ends of the first capacitor; the connection node of the first capacitor and the first resistor is coupled to the control module, and the water leakage detection interface detects the purified water The water leakage detection module outputs a first trigger signal to the control module when there is water at the bottom of the housing of the device; the control module is used to control the solenoid valve module to close when the first trigger signal is received The water inlet of the water purifier. The water leakage safety protection device for water purifier as described in item 1 of the patent scope is characterized in that the device further includes a flow detection module coupled to the control module, and the flow detection module is used for detection A continuous flow value of the water purifier outlet, the flow detection module outputs a second trigger signal to the control module when detecting that the continuous flow value of the water purifier outlet reaches a preset continuous flow value , The control module receives the second trigger signal to close the water inlet of the water purifier. The water leakage safety protection device for water purifier as described in item 1 of the patent scope is characterized in that the device further includes a flow detection module coupled to the control module, and the flow detection module is used for detection Cumulative flow value of the water purifier outlet, the flow detection module outputs a third trigger signal to the control module when detecting that the cumulative flow value of the water purifier outlet reaches a preset cumulative flow value, The control module receives the third trigger signal to close the water inlet of the water purifier. The water leakage protection device for water purifier as described in item 3 of the patent application range is characterized in that the device further includes an alarm module coupled to the control module, and the control module receives the third When the signal is triggered, an alarm signal is also output to the alarm module, and the alarm module is used to issue an alarm prompt when receiving the alarm signal.

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