CN218848350U

CN218848350U - Water leakage induction device

Info

Publication number: CN218848350U
Application number: CN202320066351.7U
Authority: CN
Inventors: 黄庆羽; 闫维刚; 吴燕峰
Original assignee: Youkou Water Purification Technology Group Guangdong Co ltd
Current assignee: Youkou Water Purification Technology Group Guangdong Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-04-11
Anticipated expiration: 2033-01-06

Abstract

The utility model discloses a water leakage sensing device, belonging to the technical field of water sensing, which comprises a shell, a circuit board arranged in the shell and sensing probes electrically connected with the circuit board, wherein the sensing probes are arranged in pairs and extend out of the shell; the upper surface and the lower surface of the shell are both provided with supporting legs, and the supporting legs can enable the induction probe to be supported to be lifted off. The water leakage sensing device provided by the utility model can more sensitively sense whether water leakage exists or not by arranging the plurality of probes, so that the water leakage sensing device can be applied to water leakage sensing of water purifying equipment; through setting up the supporting legs, can make the probe support liftoff, avoid tinfoil and probe intercommunication, form the interference. The water leakage induction device is sensitive to the leakage of water and has less interference, thus being widely applied to the leakage prevention of water purifying equipment.

Description

Water leakage induction device

Technical Field

The utility model relates to a water response technical field, in particular to induction system leaks.

Background

The water inductor is an induction device manufactured based on the liquid conduction principle, is generally provided with paired probes and a circuit board connected with the probes, and when the probes meet water, the probes can be communicated with each other to further output an electric signal, so that the water inductor plays a role in alarming or triggering other circuit boards to start switch control. However, when the existing water sensor is applied to a water purifying device, the following defects exist: (1) When the water purifying equipment is permeated, the conductivity of the pure water generated by the water purifying equipment is low, so that the probe is insensitive and the alarm is delayed; (2) In current installation water purification unit's the cupboard, can paste the tinfoil usually, soak the cupboard in the time of preventing the infiltration, make the cupboard rot, but, when the water inductor was arranged in the cupboard, when the probe pasted mutually with the tinfoil, because the tinfoil is electrically conductive, easily produced sensing signal, form and disturb, also send out the police dispatch newspaper when leading to anhydrous. It is seen that improvements and enhancements to the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a water leakage sensor, which is not sensitive to water leakage or is easy to interfere with water leakage when the water sensor is used in a water purifier.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a water leakage sensing device comprises a shell, a circuit board arranged in the shell and sensing probes electrically connected with the circuit board, wherein the sensing probes are arranged in pairs and extend out of the shell; the upper surface and the lower surface of casing all are equipped with the supporting legs, the supporting legs can make the induction probe support liftoff.

In the water leakage sensing device, the number of the sensing probes is more than or equal to two pairs.

In the water leakage sensing device, the sensing probe penetrates through the upper surface or the lower surface of the shell.

In the water leakage sensing device, the sensing probes penetrating the upper surface and the sensing probes penetrating the lower surface are arranged in pairs at intervals.

In the water leakage sensing device, the sensing probes penetrate through the upper surface and the lower surface of the shell and the circuit board.

In the water leakage sensing device, the height of the supporting legs is 0.2-0.5 mm higher than the part of the sensing probe extending out of the shell.

In the water leakage sensing device, the shell comprises an upper shell and a lower shell, connecting columns are arranged in the upper shell and the lower shell, threaded holes are formed in the connecting columns, and the upper shell is in threaded connection with the lower shell.

In the water leakage sensing device, a plurality of support frames are arranged in the lower shell, the support frames are provided with positioning columns extending upwards and support plates located on two sides of the positioning columns, connecting columns with inserting holes are arranged at positions of the upper shell corresponding to the two positioning columns, through holes are arranged at positions of the circuit board corresponding to the positioning columns, and the positioning columns penetrate through the through holes and are inserted into the inserting holes.

In the water leakage sensing device, the upper shell is provided with a convex edge extending downwards, the outer diameter of the convex edge is matched with the inner diameter of the lower shell, and the convex edge is inserted into the lower shell.

The water leakage sensing device is characterized in that central pipes are arranged at the central positions of the upper shell and the lower shell, avoidance holes are formed in the positions, corresponding to the central pipes, of the circuit board, and internal threads are formed in the central pipes.

Has the advantages that:

the utility model provides a water leakage sensing device, which can sense whether water leakage exists more sensitively by arranging a plurality of probes, thereby being applied to water leakage sensing of water purifying equipment; through setting up the supporting legs, can make the probe support liftoff, avoid tinfoil and probe intercommunication, form the interference. The water leakage induction device is sensitive to the leakage of water and has less interference, thus being widely used for preventing leakage of water purifying equipment.

Drawings

Fig. 1 is a schematic structural view of the water leakage sensing device provided by the present invention.

Fig. 2 is an exploded view of the water leakage sensing device.

Fig. 3 is an exploded view of the water leakage sensing device.

FIG. 4 is a schematic diagram of a circuit board and an inductive probe according to an embodiment.

FIG. 5 is a schematic diagram of a circuit board and an inductive probe according to another embodiment.

Fig. 6 is a schematic view of the structure of the sensing probe extending to two sides of the circuit board.

The figures are numbered: 1-shell, 2-circuit board, 3-induction probe, 4-supporting leg, 5-upper shell, 6-lower shell, 7-first connecting column, 8-threaded hole, 9-supporting frame, 10-positioning column, 11-supporting plate, 12-second connecting column, 13-perforated hole, 14-convex edge, 15-central tube and 16-avoiding hole.

Detailed Description

The utility model provides a water leakage sensing device, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right below with reference to the attached drawing and to lift the embodiment the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, fig. 2 and fig. 3, a water leakage sensing device according to a preferred embodiment of the present invention includes a housing 1, a circuit board 2 disposed in the housing 1, and a sensing probe 3 electrically connected to the circuit board. The shell 1 can be cylindrical or cubic, preferably cylindrical, so that the situation that a user places the side provided with the induction probe far away from the supporting surface to cause the induction probe not to touch leaked water is avoided. The induction probes 3 are arranged on the circuit board 2 in pairs, the top ends of the induction probes 3 extend out of the shell 1, when water appears in the environment of the shell 1, the induction probes 3 arranged in pairs form a closed passage by taking the water as conductive liquid, so that electric signals are generated, and induction signals of water leakage are provided; the upper surface and the lower surface of casing 1 all are equipped with supporting legs 4, inductive probe 3 highly is less than the height of supporting legs 4, consequently, supporting legs 4 can make inductive probe 3 support liftoff, when the induction system that leaks places on the cupboard of having laid the tin foil, because inductive probe 3 liftoff, consequently can not contact with the tin foil, and then can not produce interference signal because of the tin foil is electrically conductive, reach the more accurate purpose of feedback that makes the device to whether have the water seepage.

In a preferred embodiment, the height of the supporting feet 4 is 0.2-0.5 mm higher than the part of the sensing probe 3 extending out of the housing 1, and this height difference can support the sensing probe 3 off the ground and prevent the probe from excessively crossing away from the supporting surface, so as to avoid interference from tinfoil or water mist attached to the surface of the supporting surface in wet weather and ensure that the sensing probe 3 can timely touch water when water leaks.

The water leakage sensing device with the structure is used for detecting the leakage of the water purifier, and the sensing signal is weak due to the small conductivity of the pure water. In contrast, in a preferred embodiment, the number of the sensing probes 3 is greater than or equal to two pairs, preferably four or five pairs, and when leakage occurs, the sensing probes 3 are simultaneously connected, so that the sensing signal can be increased, and the detection of the leakage water is more sensitive and accurate.

In a preferred embodiment, as shown in fig. 1, 2 and 3, the housing 1 is cylindrical, the circuit board 2 is a flat octagonal plate body adapted to the cylindrical housing 1, and a pin is provided on one edge of the flat octagonal plate body; the number of the sensing probes 3 is four, as shown in fig. 4, and one end of each of the four pairs of probes is connected to the circuit board 2, and the other end thereof passes through the housing 1 downward and extends out of the housing 1, or passes through the housing 1 upward and extends out of the housing 1. Preferably, the sensing probes 3 partially penetrate through the shell 1 upwards in pairs and extend out of the shell 1, and the other partially penetrate through the shell 1 downwards in pairs and extend out of the shell 1, so that no matter the shell 1 is square or reversed, the sensing probes 3 are positioned at the bottom, and when leakage occurs, the sensing probes 3 positioned at the bottom can sense.

As a further improvement, in some embodiments, the sensing probes 3 are circumferentially connected to the circuit board 2, and the sensing probes 3 penetrating the upper surface and the sensing probes 3 penetrating the lower surface are arranged in pairs at intervals, as shown in fig. 5, so that when a leakage occurs, the housing 1 can sense the leakage better whether it is placed on the front side or the back side.

In a preferred embodiment, as shown in fig. 6, the sensing probes 3 are disposed through the upper and lower surfaces of the housing 1 and the circuit board 2, that is, the sensing probes 3 penetrate through the housing 1 and the circuit board 2, which can ensure that the number of the probes on the upper and lower surfaces of the housing 1 is the same and more, thereby improving the sensitivity of sensing the leakage water.

In a preferred embodiment, as shown in fig. 2 and 3, the housing 1 includes an upper shell 5 and a lower shell 6, the upper shell 5 and the lower shell 6 are both provided with first connection posts 7, the first connection posts 7 are opposite to each other up and down, and the first connection posts 7 are both provided with threaded holes 8, wherein the threaded holes 8 provided on the first connection posts 7 in the lower shell 6 are threaded through holes, and the upper shell 5 and the lower shell 6 are connected by screws through the threaded holes 8. The screw connection is convenient to detach and mount and is very stable.

In order to better fix the circuit board 2, as shown in fig. 2 and 3, a plurality of support frames 9 are disposed in the lower casing 6, positioning pillars 10 extending upward and support plates 11 disposed at two sides of the positioning pillars 10 are disposed on the support frames 9, the height of the support plates 11 is smaller than the height of the positioning pillars 10, second connection posts 12 with insertion holes are disposed at positions of the upper casing 5 corresponding to two of the positioning pillars 10, through holes 13 are disposed at positions of the circuit board 2 corresponding to the positioning pillars 10, and the positioning pillars 10 pass through the through holes 13 and are inserted into the insertion holes. The circuit board 2 can be stably fixed between the upper shell 5 and the lower shell 6 through the arranged support frame 9 and the second connecting column 12.

In order to avoid water entering the casing 1, as shown in fig. 3, the upper casing 5 is provided with a convex edge 14 extending downwards, the outer diameter of the convex edge 14 is matched with the inner diameter of the lower casing 6, when the upper casing 5 is buckled and connected with the lower casing 6, the convex edge 14 is inserted into the lower casing 6, so that a sealing structure is formed between the upper casing 5 and the lower casing 6, and water is prevented from seeping into the circuit board 2 from the gap where the upper casing 5 and the lower casing 6 are connected.

In order to facilitate the water leakage sensing device to be applied to a specific scene, as shown in fig. 2 and 3, the central position of the upper shell 5 and the central position of the lower shell 6 are both provided with central tubes 15, the central tubes 15 are provided with internal threads, the central tubes 15 of the upper shell 5 extend downwards, the central tubes 15 of the lower shell 6 extend upwards, the center of the circuit board 2 is provided with avoidance holes 16, and when the upper shell 5 is fixedly connected with the lower shell 6, the bottom surface of the central tube 15 of the upper shell 5 is abutted to the top surface of the central tube 15 of the lower shell 6. When the water leakage sensing device is used, the water leakage sensing device can be fixed at a specific position by penetrating the central pipe 15 through a screw or a bolt.

In summary, the water leakage sensing device of the present invention can sense whether there is water leakage more sensitively by arranging the plurality of probes, and thus can be applied to water leakage sensing of water purification equipment; through setting up the supporting legs, can make the probe support liftoff, avoid tinfoil and probe intercommunication, form the interference. The water leakage induction device is sensitive to the leakage of water and has less interference, thus being widely used for preventing leakage of water purifying equipment.

It should be noted that, in the description of the embodiments of the present invention, the terms "inside", "outside", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It should be understood that equivalents and modifications may be made thereto by those skilled in the art, and all such modifications and alterations are intended to fall within the scope of the appended claims.

Claims

1. A water leakage sensing device is characterized by comprising a shell, a circuit board arranged in the shell and sensing probes electrically connected with the circuit board, wherein the sensing probes are arranged in pairs and extend out of the shell; the upper surface and the lower surface of casing all are equipped with the supporting legs, the supporting legs can make the induction probe support liftoff.

2. The water leakage sensing device of claim 1, wherein the number of said sensing probes is equal to or greater than two pairs.

3. The water leakage sensing device of claim 2, wherein the sensing probe is inserted into the upper surface or the lower surface of the housing.

4. The water leakage sensing device of claim 3, wherein the sensing probes penetrating the upper surface and the sensing probes penetrating the lower surface are spaced in pairs.

5. The water leakage sensing device of claim 2, wherein the sensing probe is inserted into the upper and lower surfaces of the housing and the circuit board.

6. The water leakage sensing device of claim 1, wherein the height of the supporting legs is 0.2-0.5 mm higher than the portion of the sensing probe extending out of the housing.

7. The water leakage sensing device of claim 1, wherein the housing comprises an upper shell and a lower shell, the upper shell and the lower shell are both provided with a connection column, the connection column is provided with a threaded hole, and the upper shell and the lower shell are connected through threads.

8. The water leakage sensing device of claim 7, wherein a plurality of supporting frames are disposed in the lower casing, the supporting frames are provided with positioning pillars extending upward and supporting plates disposed at two sides of the positioning pillars, the upper casing is provided with connecting posts having insertion holes at positions corresponding to two of the positioning pillars, the circuit board is provided with through holes at positions corresponding to the positioning pillars, and the positioning pillars pass through the through holes and are inserted into the insertion holes.

9. The water leakage sensing device according to claim 8, wherein said upper shell is provided with a downwardly extending convex edge, the outer diameter of said convex edge is adapted to the inner diameter of said lower shell, and said convex edge is inserted into said lower shell.

10. The water leakage sensing device of claim 9, wherein central pipes are disposed at the central positions of the upper casing and the lower casing, relief holes are disposed at positions of the circuit board corresponding to the central pipes, and the central pipes are provided with internal threads.