CN212229193U - Water immersion sensor - Google Patents

Abstract

The utility model discloses a water sensor, include: a housing assembly provided with an accommodating cavity; the circuit board is arranged in the accommodating cavity and fixed on the shell assembly; the conductive element is a good electric conductor, is fixed on the circuit board and is electrically connected with the circuit board; and the probe assembly is an electric good conductor, penetrates through the wall surface of the shell assembly and abuts against the conductive element. In this way, the utility model discloses can pass through conductive element and circuit board electric connection with the probe subassembly, need not set up welding process, reduce the product equipment degree of difficulty.

Description

Water immersion sensor

Technical Field

The utility model relates to a measuring equipment technical field especially relates to a water sensor.

Background

The water sensor is based on the liquid conduction principle, detects whether water exists or not, and sends out a notice to a user if the water exists.

At present, a probe of the water sensor is electrically connected with a circuit board through a lead, a welding procedure is required to be set during assembly, and the difficulty of product assembly is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a water sensor, reduces the product equipment degree of difficulty.

In order to solve the technical problem, the utility model discloses a technical scheme be: there is provided a water sensor comprising:

a housing assembly provided with an accommodating cavity;

the circuit board is arranged in the accommodating cavity and fixed on the shell assembly;

the conductive element is a good electric conductor, is fixed on the circuit board and is electrically connected with the circuit board; and

the probe assembly is a good electric conductor, penetrates through the wall surface of the shell assembly and is abutted to the conductive element.

The utility model has the advantages that: be different from prior art's condition, the utility model discloses with the probe subassembly fixed to the casing subassembly on and with be fixed in the conductive element butt on the circuit board, through conductive element and circuit board electric connection, need not set up welding processes, reduced the product equipment degree of difficulty.

Drawings

FIG. 1 is an exploded view of the three-dimensional structure of a water sensor according to an embodiment of the present application;

FIG. 2 is a front view of a water sensor according to an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of FIG. 2;

FIG. 4 is an enlarged view of detail A of FIG. 3;

FIG. 5 is an enlarged view of detail B of FIG. 3;

fig. 6 is a schematic cross-sectional view of the screw connection in the water sensor of this embodiment.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive step are within the scope of the present application.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1, 2 and 3, embodiments of the present application provide a water sensor comprising: a housing assembly 100, a circuit board 3, a conductive element 4, a power source 5, and a probe assembly 300. The housing assembly 100 is provided with a receiving cavity 200, the circuit board 3 is disposed in the receiving cavity 200 and fixed on the housing assembly 100, the conductive element 4 is a good electrical conductor and fixed on the circuit board 3 and electrically connected to the circuit board 3, and the probe assembly 300 is a good electrical conductor and penetrates through the wall surface of the housing assembly 100 and abuts against the conductive element 4.

Specifically, the housing assembly 100 includes: the upper shell 1 and the lower shell 7, the upper shell 1 and the lower shell 7 are fixedly connected and form a containing cavity 200. The housing assembly 100 has a split structure, so that the circuit board 3 can be conveniently assembled into the accommodating cavity 200. To maintain the waterproof capability of the housing assembly 100, the upper housing 1 and the lower housing 7 may be hermetically coupled.

As shown in fig. 3 and 4, the upper housing 1 and the lower housing 7 are respectively provided with a first groove 101 and a first protrusion 701 at a joint, the first groove 101 and the first protrusion 701 are enclosed in the accommodating cavity 200, the first protrusion 701 is clamped in the first groove 101, a first sealing element 2 is further interposed between the bottom of the first groove 101 and the first protrusion 701, and the first sealing element 2 is made of an elastic material, such as a rubber material, and is configured to deform under the extrusion of the first protrusion 701 to fill a gap between the first groove 101 and the first protrusion 701.

As shown in fig. 2 and 6, the upper case 1 and the lower case 7 are detachably coupled by a screw coupling. The upper case 1 and the lower case 7 are connected by screws 6. The screws 6 are recessed in the surface of the housing assembly 100, and screw mounting holes 702 are formed in the surface of the housing assembly 100. The distance L between two adjacent screws 6 cannot be too large, so as to prevent the joint between the shell 1 and the lower shell 7 from lifting in the region between two adjacent screws 6, and the sealing effect is affected. In this embodiment, L is less than 35 mm. In other embodiments, the upper housing 1 and the lower housing 7 may be connected by a snap connection or other detachable connection.

In addition, in order to enhance the waterproof effect at the screw mounting hole 702, a second sealing member 8 is inserted into the screw mounting hole 702, and the second sealing member 8 is made of an elastic material, such as rubber. In this embodiment, the screw mounting hole 702 is cylindrical, and the shape of the second seal member 8 matches the screw mounting hole 702. The shore hardness of the second sealing element 8 is 70 degrees, and the diameter of the second sealing element is 0.1-0.2 mm larger than that of the screw mounting hole 702.

As shown in fig. 3, the power supply 5 is disposed in the sealed accommodating cavity 200, and needs to be replaced or taken out for charging and then placed back into the accommodating cavity 200. In order to conveniently take and place the power supply 5, the lower housing 7 is provided with an opening 702 at a position corresponding to the power supply 5, the opening 702 is communicated with the accommodating cavity 200 and the outside, the opening 702 is provided with a cover 10, and the cover 10 is detachably and hermetically connected with the lower housing 7. When the power supply 5 is taken and placed, only the cover body 10 needs to be disassembled and assembled, and the sealing effect of the upper shell 1 and the lower shell 7 can be prevented from being influenced.

There are various detachable connection ways of the cover 10 and the opening 702, such as screw connection, buckling connection, screw connection, etc., and in this embodiment, the screw connection is adopted. Specifically, the opening 702 includes an internal threaded hole 702a and a notch 702b, wherein the internal threaded hole 702a is recessed in the surface of the lower housing 7, and the notch 702b is disposed in the bottom surface of the internal threaded hole 702a and communicates the accommodating cavity 200 with the outside. The cap body 10 is screwed into the female screw hole 702 a.

As shown in fig. 3 and 5, in order to enhance the sealing effect between the cover body 10 and the opening 702, a second groove 703 and a second protrusion 1002 surrounding the notch 702b are respectively disposed on the bottom surface of the internal threaded hole 702a and the end surface of the cover body 10, the second protrusion 1002 is clamped in the second groove 703, a third sealing member 9 is further interposed between the bottom of the second groove 703 and the second protrusion 1002, and the third sealing member 9 is made of an elastic material, such as rubber, and is deformed by the second protrusion 1002 to fill a gap between the second groove 703 and the second protrusion 1002.

To ensure the complete appearance of the product, the outer surface of the cover 10 is continuous with the outer surface of the lower housing 7 at the junction.

In order to facilitate the detachment and installation of the cap 10, a third recess 1001 shaped like a Chinese character 'yi' is formed on the surface of the cap 10, and the third recess 1001 is used for a tool to be inserted to rotate the cap 10.

Specifically, the circuit board 3 is fastened to the housing assembly 100, particularly to the housing assembly 100 in a direction approaching the probe assembly 300. In other embodiments, the circuit board 3 may be fixed to the housing assembly 100 by screws. In comparison, the assembly is more convenient by the fastening mode.

A pressing switch 301 may be further provided on the circuit board 3, and the switch 301 is used to turn on or off the circuit of the circuit board 3 when a pressing force is applied. The inner wall of the housing assembly 100 is unobstructed between the area corresponding to the switch 301 and the switch 301, and when the housing assembly 100 is pressed on the outside, the housing assembly 100 deforms under pressure to transmit the pressing force to the switch 301.

As shown in fig. 3, the conductive member 4 has elasticity, particularly in an abutting direction with the probe assembly 300, to enhance a contact effect with the probe assembly 300. The conductive element 4 may be a spring conductive pin. The spring conductive pin is a commercially available product and is not described in detail here.

The probe assembly 300 includes: a first section 6 and a second section 8 which are detachably connected. The first section 6 penetrates the housing assembly 100 and abuts on the conductive element 4, and the second section 8 is disposed outside the housing assembly 100 relative to the accommodating cavity 200. By providing the probe assembly 300 in two parts, the length of the probe assembly 300 can be easily adjusted to accommodate different testing environments.

The specific detachable connection manner of the first part 6 and the second part 8 may be a threaded connection, a snap connection, etc., and the application is not limited thereto. The threaded connection is preferred in this embodiment, considering that it can generate a locking force between the first and second sections 6 and 8, so that the two are better contacted to facilitate electrical connection.

To maintain a good waterproof capability, the probe assembly 300 may be sealingly connected to the housing assembly 100. The sealing connection mode can be integrally formed. The above-described probe assembly 300 is designed to be split and facilitates an integrated molding process. Since the probe assembly 300 has a long length, it is possible to integrally form only the first sub-section 6 with the housing assembly 100 and then connect the second sub-section 8 with the first sub-section 6. In addition to the integrally formed sealing connection, in other embodiments, the housing assembly 100 may be produced first, and then the first section 6 is combined with the housing assembly 100 through a hot-melting process.

The water sensor provided by the embodiment comprises the following steps during assembly:

providing an upper case 1, a lower case 7 (assembled with a probe assembly 300), a circuit board 3, a conductive member 4; fixing the conductive element 4 on the circuit board 3 and electrically connecting with the circuit board 3; buckling the circuit board 3 on the lower shell 7, and enabling the probe assembly 300 to abut against the conductive element 4; fixedly connecting the upper shell 1 with the lower shell 7.

When the water sensor provided by the embodiment is used, the water sensor is placed in an area to be detected, and the upper shell 1 is kept above the lower shell 7, so that the probe assembly 300 can contact water.

In the water sensor provided by the embodiment, the probe assembly 300 is fixed on the housing assembly 100 and is abutted against the conductive element 4 fixed on the circuit board 3, and the conductive element 4 is electrically connected with the circuit board 3, so that a welding process is not required, and the difficulty in assembling the product is reduced.

The above description is only an embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes performed by the content of the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present invention.

Claims (10)

1. A water sensor, comprising:

a housing assembly provided with an accommodating cavity;

the circuit board is arranged in the accommodating cavity and fixed on the shell assembly;

the conductive element is a good electric conductor, is fixed on the circuit board and is electrically connected with the circuit board; and

the probe assembly is a good electric conductor, penetrates through the wall surface of the shell assembly and is abutted to the conductive element.

2. The water sensor of claim 1, wherein the conductive element is resilient.

3. The water sensor of claim 2, wherein the conductive element is a spring conductive pin.

4. The water sensor of claim 1, wherein the circuit board is snap-fit to the housing assembly in a direction approaching the probe assembly.

5. The water sensor of claim 1, wherein the housing assembly comprises:

an upper housing; and

and the lower shell is fixedly connected with the upper shell and forms the accommodating cavity.

6. The water sensor of claim 5, wherein the lower housing is sealingly connected to the upper housing.

7. The water sensor of claim 1, wherein the probe assembly comprises:

the first subsection penetrates through the shell assembly and abuts against the conductive element; and

and the second subsection is arranged at the outer side and is detachably connected with the first subsection.

8. The water sensor of claim 7, wherein the second section is threaded with the first section.

9. The water sensor of claim 1, wherein the probe assembly is sealingly connected to the housing assembly.

10. The water sensor of claim 9, wherein the probe assembly is integrally formed with the housing assembly.

Images