CN212322405U - Waterproof water leakage detector - Google Patents

Abstract

The application relates to the field of water leakage detection, in particular to a waterproof water leakage detector which comprises a detector and a sensor, wherein the detector comprises a power supply module, a ZigBee module and a detection module, a detection probe J1 is arranged in the sensor, and a power line is connected between the detector and the sensor; the power supply module is used for supplying power to the ZigBee module, the sensor is used for detecting whether the indoor floor is soaked and outputting a detection signal, the detection module is used for receiving the detection signal and outputting a water soaking trigger signal, the ZigBee module is coupled with the detection module, and the ZigBee module is used for receiving the water soaking trigger signal and triggering alarm. The detector of the application can be placed at a higher position according to the requirements of actual conditions, and the arrangement can reduce the water entering of the module in the detector, so that the possibility of damage to the detector is reduced.

Description

Waterproof water leakage detector

Technical Field

The application relates to the field of water leakage detection, in particular to a waterproof water leakage detector.

Background

In a kitchen, a bathroom or a kitchen, when a water tap leaks or forgets to close, the water tap often causes ground flooding, which wastes water resources, and accumulated water may enter an indoor circuit system to cause safety accidents such as circuit short circuit. The water leakage detector can timely prevent water accumulation, and can send out an alarm signal when water enters the ground or other detection places to remind people of the water accumulation so that people can take water drainage measures in time.

In order to facilitate detection of the water accumulation situation on the ground, the water leakage detector needs to be placed at a lower position. The water leakage detector can detect water leakage and send out an alarm signal under the condition of power-on.

In view of the above-mentioned related art, the inventor believes that the water leakage detector in the related art has a disadvantage that water easily enters the inside of the water leakage detector to cause the water leakage detector to be damaged, so that the water leakage detector is difficult to alarm in time.

SUMMERY OF THE UTILITY MODEL

In order to make the difficult in-process water that soaks of detector that leaks get into the inside of the detector that leaks and lead to the detector damage that leaks, this application provides a waterproof detector that leaks.

The application provides a waterproof water leakage detector adopts following technical scheme:

a waterproof water leakage detector comprises a detector and a sensor, wherein the detector comprises a power supply module, a ZigBee module and a detection module, a detection probe J1 is arranged in the sensor, and a power line is connected between the detector and the sensor; the power supply module is used for supplying power to the ZigBee module, the sensor is used for detecting whether the indoor floor is soaked and outputting a detection signal, the detection module is used for receiving the detection signal and outputting a water soaking trigger signal, the ZigBee module is coupled with the detection module, and the ZigBee module is used for receiving the water soaking trigger signal and triggering alarm.

Through adopting above-mentioned technical scheme, set up through electrified line alternate segregation between detector and the sensor to the power module, zigBee module and the detection module that will soak the easy short circuit of back and lead to the damage are installed in the detector, and the direct test probe J1 that is used for soaking the detection then installs on the sensor, and the detector can be placed in higher position according to actual conditions's needs, and such setting can reduce the module of detector inside and go into water, thereby has reduced the possibility of detector damage.

The present invention may be further configured in a preferred embodiment as: the detection probe J1 comprises a pair of metal probes arranged at intervals, and the two metal probes are connected into the detection module to form an open circuit, and the tail ends of the metal probes extend out of the bottom of the sensor.

By adopting the technical scheme, when the detection probe J1 is electrified and water flows exist between the two metal probes, the two metal probes are changed into a passage from an open circuit, the detection module can receive the detection signal at the moment, and the detection signal can be sent to the detection module in time by the mode, so that the response speed is improved.

The present invention may be further configured in a preferred embodiment as: the bottom of the sensor is also provided with a supporting piece for supporting the sensor, and the maximum distance between the supporting piece and the bottom of the sensor is greater than that between the metal probe and the sensor.

Through adopting above-mentioned technical scheme, when the sensor is arranged in ground or will detect on the plane of soaking, under support piece's bearing, there is certain clearance between metal probe and the plane, consequently just can trigger the warning when ponding exists a take the altitude to can make difficult triggering under the circumstances such as the weather is moist, the watering on ground or the liquid drop splashes and report to the police, consequently improved the accuracy of reporting to the police.

The present invention may be further configured in a preferred embodiment as: the detector also comprises a shell and a rear cover, wherein the shell and the rear cover are in clamping fit, a clamping groove is formed in the shell, and a limit stop is arranged at one end of the clamping groove, which is provided with an opening; the rear cover is provided with a buckle, and the buckle is matched with the clamping groove in a sliding manner and is mutually abutted to the limit stop.

Through adopting above-mentioned technical scheme, it is difficult for realizing fixedly through the joint cooperation between casing and the back lid, has reduced the use of mounting, has promoted the convenience of casing with the dismouting of back lid.

The present invention may be further configured in a preferred embodiment as: the device networking module is used for network connection and generates water immersion information with the water immersion trigger signal, and uploads the water immersion information to the gateway and the cloud platform.

By adopting the technical scheme, the equipment networking module can control the connection of the network, so that the user can conveniently remotely monitor the water immersion condition.

The present invention may be further configured in a preferred embodiment as: the power supply module comprises a battery and further comprises an anti-reverse connection circuit, and the anti-reverse connection circuit is used for preventing the battery from being reversely connected.

By adopting the technical scheme, the anti-reverse-connection circuit can play a role in preventing short circuit of the power supply module, and the normal operation of the circuit is ensured.

The present invention may be further configured in a preferred embodiment as: a filter capacitor C1 is coupled to the anti-reverse circuit.

Through adopting above-mentioned technical scheme, clutter can be filtered out in the existence of filter capacitor C1, and the developments when can the great change of effectual increase load are corresponding simultaneously, make the work of the circuit of power supply more stable.

The present invention may be further configured in a preferred embodiment as: the ZigBee module comprises a controller, and the model of the controller is JN 5169.

By adopting the technical scheme, the JN5169 is an ultra-low power consumption and high performance wireless microcontroller suitable for the Bee application. It has 512kB of embedded flash, 32kB of RAM and 4kB of EEPROM memory, allowing OTA upgrade capability without external memory. The 32-bit RISC processor provides high coding efficiency through variable width instructions, a multi-stage instruction pipeline, and low power consumption operation with programmable clock speeds. It also includes a 2.4GHz ieee802.15.4 compliant transceiver and a comprehensive combination of analog and digital peripherals. The RX stage optimum operating current provides excellent battery life.

The present invention may be further configured in a preferred embodiment as: and a double-sided adhesive back film is adhered to the bottom of the sensor and/or the rear cover of the detector.

Through adopting above-mentioned technical scheme, two-sided gum pad pasting can make sensor or detector directly attached on wall, ground or other planes for the installation of flowing water detector is changed conveniently.

Drawings

Fig. 1 is a schematic view of the overall structure of a waterproof water leakage detector according to an embodiment of the present application.

Fig. 2 is a schematic diagram illustrating a rear cover and a housing of a detector according to an embodiment of the present application.

FIG. 3 is a cross-sectional view of a probe taken along line A-A of FIG. 1 according to an embodiment of the present application.

Fig. 4 is a schematic diagram of a ZigBee module according to an embodiment of the present application.

Fig. 5 is a schematic diagram of a power supply module according to an embodiment of the present application.

FIG. 6 is a schematic diagram of a detection module according to an embodiment of the present application.

Fig. 7 is a schematic diagram of a screening press circuit according to an embodiment of the present application.

FIG. 8 is a schematic diagram of an LED indicator light circuit according to an embodiment of the present application.

Description of reference numerals: 1. a detector; 11. a housing; 111. a card slot; 112. a limit stop block; 12. a rear cover; 121. buckling; 2. a sensor; 21. a metal probe; 23. a support member; 3. a double-sided adhesive back film; 4. and (6) electrifying the wire.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses waterproof water leakage detector.

Referring to fig. 1, a waterproof water leakage detector includes a detector 1 and a sensor 2, and a power line 4 is connected between the detector 1 and the sensor 2.

Referring to fig. 2 and 3, the detector 1 includes a housing 11 and a back cover 12, wherein the housing 11 and the back cover 12 are engaged with each other by a snap fit. Specifically, the housing 11 is in a box shape with an opening at one side, a clamping groove 111 is arranged at the edge of the opening of the housing 11, and a limit stop 112 is integrally arranged at one end of the opening of the clamping groove 111 of the housing 11; the rear cover 12 is integrally formed with a buckle 121, and the buckle 121 is slidably fitted with the slot 111 and is abutted against the limit stopper 112. Since the buckle 121 is clamped in the clamping groove 111 and the buckle 121 realizes the limiting function under the action of the limit stop 112, the rear cover 12 is not easy to separate from the housing 11.

Referring to fig. 1, a double-sided adhesive backing film 3 is attached to a rear cover 12 of a probe 1. So set up, detector 1 can attach in vertical wall or other planes on, also can properly place detector 1 without the help of the support, has reduced the possibility that detector 1 intake.

The detector 1 is provided with a ZigBee module, a power supply module, a detection module and an equipment networking module in a shell 11.

Referring to fig. 4, the ZigBee module is configured to receive a water immersion trigger signal and trigger an alarm. ZigBee is a remote monitoring, control and sensor 2 network application technology based on standards. Peripheral circuits, called as "ZigBee modules", are introduced around ZigBee chip technology, and the ZigBee modules are commonly used in the international standard of ieee802.15.4 and operate in the frequency band of 2.4GHZ, and 868MHZ is used in europe and 915MHZ is used in north america.

With continued reference to fig. 4, in particular, the ZigBee module includes a controller, wherein the controller may be a model of JN5169 or JN5168, which is JN5169 in this embodiment. JN5169 is an ultra low power high performance wireless microcontroller. It has 512kB of embedded flash, 32kB of RAM and 4kB of EEPROM memory, allowing OTA upgrade capability without external memory. The 32-bit RISC processor provides high coding efficiency through variable width instructions, a multi-stage instruction pipeline, and low power consumption operation with programmable clock speeds. It also includes a 2.4GHz ieee802.15.4 compliant transceiver and a comprehensive combination of analog and digital peripherals.

With reference to fig. 4, the power supply terminals 8 and 18 of the JN5169 controller are grounded via the capacitor C2 and the capacitor C3, respectively, in this embodiment, the capacitor C2 and the capacitor C3 are both decoupling capacitors, which can provide a relatively stable power supply, and at the same time, can reduce the noise from the device coupled to the power supply terminals, and indirectly can reduce the influence of the noise from other devices.

Referring to fig. 5, the power supply module includes a dc power input circuit for supplying power to the ZigBee module, and an anti-reverse circuit for preventing a circuit fault caused by reverse connection of the battery. The dc power input circuit includes a battery and a fuse F1 connected in series with the battery. The battery can be a lithium battery or a dry battery and is used for providing a 3V power supply, the negative pole of the battery is grounded, and the positive pole of the battery is electrically connected with the controller.

With continued reference to fig. 5, further, the reverse connection prevention circuit includes a diode D3, and a diode D3 is connected in parallel with the dc power input circuit. The anode of the diode D3 is connected with the cathode of the battery, and the cathode of the diode D3 is connected with one end of the fuse far away from the cathode of the battery.

With continued reference to fig. 5, further, the reverse connection prevention circuit further includes a filter capacitor C1, and the filter capacitor C1 is connected in parallel with the dc power input circuit. One end of the filter capacitor C1 is connected with the negative electrode of the battery, and the other end of the filter capacitor C1 is connected with one end of the fuse far away from the negative electrode of the battery.

With continued reference to fig. 5, the fuse F1, diode D3, and filter capacitor C1 described above function to prevent the circuit of the subsequent stage from shorting and to prevent the reverse connection of the battery.

Referring to fig. 6, the detection module is configured to receive a detection signal and output a water immersion trigger signal. The detection module comprises a water immersion probe detection circuit which comprises a detection probe J1.

With continued reference to fig. 6, the sensor 2 is used to detect whether the indoor floor is flooded and output a detection signal. The detection probe J1 is installed in the sensor 2, the detection probe J1 comprises a pair of metal probes 21, the two metal probes 21 are connected into a water immersion probe detection circuit to form an open circuit, the tail ends of the metal probes 21 extend out of the bottom of the sensor 2, and the connection part of the sensor 2 and the metal probes 21 is sealed through sealing glue.

Referring to fig. 1, the bottom of the sensor 2 is further provided with a support 23 for supporting the sensor 2, and the support 23 is bonded to the bottom of the sensor 2 by an adhesive or is bolted. The maximum distance of the support 23 from the bottom of the sensor 2 is greater than the maximum distance of the metal probe 21 from the sensor 2. When the bottom of the sensor 2 is placed downwards, the support 23 is in direct abutment with the contact plane, with a spacing between the metal probe 21 and the contact plane. Such an arrangement can serve to reduce false alarms.

With continued reference to fig. 1, a double-sided adhesive backing film 3 is also adhered to the bottom of the sensor 2. The double-sided adhesive back film 3 can be attached to the ground or other plane. So configured, the position of the sensor 2 is not easily changed.

Referring to fig. 6, the above-mentioned water immersion probe detection circuit further includes a resistor R3, a resistor R5, and a PNP-type transistor Q1. The base of the transistor Q1 is coupled to one of the metal probes 21, the emitter of the transistor Q1 is coupled to the 3V voltage through the resistor R3, the collector of the transistor Q1 is grounded, the other metal probe 21 is coupled to the collector of the transistor Q1, one end of the resistor R5 is coupled to the base of the transistor Q1, and the other end is coupled to the 3V voltage.

With continued reference to fig. 6, the resistor R3 and the resistor R5 are pull-up resistors, which clamp the uncertain signal at a high level through one resistor, and the resistor R3 and the resistor R5 simultaneously play a role in current limiting; the transistor Q1 is a PNP transistor, and when the B pole becomes lower than 2.3V, the collector and emitter of the transistor Q1 are turned on.

With continued reference to fig. 6, when the base of transistor Q1 is above 2.3V, the collector and emitter of transistor Q1 are off.

Continuing to refer to fig. 6, when the detecting probe J1 contacts water, the electrolytic ions in the water and the two metal probes 21 of the detecting probe J1 form a short circuit, that is, the pin 1 and the pin 2 form a loop, so that the base of the triode Q1 is lower than 2.3V, the collector and the emitter of the triode Q1 are conducted, the level of the ALARM1 is pulled from high level to low level, the ZigBee module detects low level, and then the water logging trigger information is reported to the gateway and the cloud platform, and then the information is pushed to the APP to remind the user.

The equipment networking module is used for network connection and generating water immersion information from the water immersion trigger signal, and uploading the water immersion information to the gateway and the cloud platform.

Referring to fig. 7, in particular, the device networking module includes a networking pressing circuit, the networking pressing circuit includes a pull-up resistor R2 and a key S2, one end of the key S2 is grounded, the other end of the key S2 is connected to one end of a pull-up resistor R2, and the other end of the pull-up resistor R2 is powered by a 3V power supply. The other end of the key S2 is also connected with an SW-T end. The SW-T end of the networking pressing circuit is connected with a pin 20 of the controller, the SW-T end is normally at a high level, a key S2 is triggered to be at a low level, an uncertain signal is clamped at the high level through a resistor by a pull-up resistor R2, and the pull-up resistor R2 plays a role in limiting current at the same time.

Referring to fig. 8, the network status display lamp includes an LED indicator lamp circuit. The LED indicating lamp circuit comprises a resistor R4, a resistor R6 and a light emitting diode LED1 which are connected in series, and the light emitting diode LED1 comprises an LED _ B and an LED _ R which are arranged side by side. One ends of the resistor R4 and the resistor R6 are connected and powered by a 3V power supply, the other end of the resistor R4 is connected with the anode of the LED _ B, and the other end of the resistor R6 is connected with the anode of the LED _ R. The cathode of LED _ B is connected to pin 10 of the controller and the cathode of LED _ R is connected to pin 9 of the controller. The LED _ B level of the LED1 is a bright blue lamp when the low level is low, and the high level is off; the LED _ R level of the LED1 is low, i.e., bright red, and high, i.e., off.

The implementation principle of a waterproof water leakage detector in the embodiment of the application is as follows: placing the sensor 2 in a hand washing sink, a bathtub or other positions where water is easy to leak and accumulate, and fixing the detector 1 at a higher position; when the ground is wet, the metal probe 21 is not in direct contact with the ground, so that the alarm is not easy to trigger; when the accumulated water reaches a certain height, the two metal probes 21 are short-circuited, so that the water immersion probe detection circuit forms a loop, the metal probes 21 output detection signals, the water immersion probe detection circuit receives the detection signals and outputs water immersion trigger signals, the ZigBee module is used for receiving the water immersion trigger signals and triggering alarm, the equipment networking module is connected with a network and generates water immersion information by the water immersion trigger signals to be uploaded to a gateway and a cloud platform, and a user is reminded of immersing.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. A waterproof water leak detector, characterized by: the device comprises a detector (1) and a sensor (2), wherein the detector (1) comprises a power supply module, a ZigBee module and a detection module, a detection probe J1 is arranged in the sensor (2), and a power line (4) is connected between the detector (1) and the sensor (2); the power supply module is used for supplying power to the ZigBee module, the sensor (2) is used for detecting whether the indoor floor is soaked and outputting a detection signal, the detection module is used for receiving the detection signal and outputting a water soaking trigger signal, the ZigBee module is coupled with the detection module, and the ZigBee module is used for receiving the water soaking trigger signal and triggering alarm.

2. A water resistant leak detector as claimed in claim 1, wherein: the detection probe J1 comprises a pair of metal probes (21) arranged at intervals, the two metal probes (21) are connected into the detection module to form an open circuit, and the tail ends of the metal probes (21) extend out of the bottom of the sensor (2).

3. A water resistant leak detector as claimed in claim 2, wherein: the bottom of the sensor (2) is also provided with a support piece (23) for supporting the sensor (2), and the maximum distance between the support piece (23) and the bottom of the sensor (2) is greater than the maximum distance between the metal probe (21) and the sensor (2).

4. A water resistant water leak detector as claimed in claim 3, wherein: the detector (1) further comprises a shell (11) and a rear cover (12), the shell (11) and the rear cover (12) are in clamping fit, a clamping groove (111) is formed in the shell (11), and a limit stop (112) is arranged at one open end of the clamping groove (111); be provided with buckle (121) on back lid (12), buckle (121) and draw-in groove (111) sliding fit and with limit stop (112) mutual butt.

5. A water resistant leak detector as claimed in claim 1, wherein: the device networking module is used for network connection and generates water immersion information with a water immersion trigger signal, and the water immersion information is uploaded to a gateway and a cloud platform.

6. A water resistant leak detector as claimed in claim 1, wherein: the power supply module comprises a battery and further comprises an anti-reverse connection circuit, and the anti-reverse connection circuit is used for preventing the battery from being reversely connected.

7. A water resistant water leak detector as claimed in claim 6, wherein: a filter capacitor C1 is coupled to the anti-reverse circuit.

8. A water resistant leak detector as claimed in claim 1, wherein: the ZigBee module comprises a controller, and the model of the controller is JN 5169.

9. A water resistant leak detector as claimed in claim 1, wherein: and a double-sided adhesive back film (3) is adhered to the bottom of the sensor (2) and/or the rear cover (12) of the detector (1).

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