CN211998868U - Water purifier with water leakage protection function - Google Patents

Abstract

The present disclosure relates to a water purifier with a water leakage protection function. This water purifier includes: the water leakage detection device comprises a machine shell, a filter element, a water circuit board, a water pump, a control Printed Circuit Board (PCB), a water inlet valve and a water leakage detection capacitor, wherein the filter element, the water circuit board, the water pump, the control PCB, the water inlet valve and the water leakage detection capacitor are arranged in the machine shell; the water circuit board, the water pump, the water inlet valve and the water leakage detection capacitor are all electrically connected with the control PCB; the water leakage detection capacitor is positioned on the inner side of the bottom shell of the water purifier; the capacitance value of the water leakage detection capacitor can change when water exists or does not exist on the outer side of the bottom shell of the water purifier, and the control PCB controls the opening and closing state of the water inlet valve according to the capacitance value. The water leakage detection capacitor has the characteristic that whether water exists under the shell of the water purifier or not can be detected through the shell of the water purifier, so that whether water exists at the bottom of the shell or not can be detected without penetrating through the shell, and the water leakage detection capacitor cannot be in contact with the water, so that the electricity utilization safety is effectively improved.

Description

Water purifier with water leakage protection function

Technical Field

The utility model relates to a water purifier technical field especially relates to water purifier of area protection function that leaks.

Background

The water purifier product has the risk of leaking from the pipeline joint with certain probability because of more internal pipeline connections. If the machine can not monitor the water leakage condition, the machine works in the water leakage state for a long time, and the installation environment of a user is damaged. Most of water purifier products on the market adopt a mode of a double-electrode probe, the probe penetrates through the bottom of a machine shell and extends out of the products, when the water leakage level reaches a certain height, the double electrodes are conducted by water to generate signal change, and the signal change is fed back to a machine to carry out corresponding protection operations such as valve closing.

Due to the limitation of the working principle, the double-electrode probe needs to penetrate out of the shell, so that a user can worry about the safety risk of electricity utilization.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the related art, the embodiments of the present disclosure provide a water purifier with a water leakage protection function. The technical scheme is as follows:

according to a first aspect of the embodiments of the present disclosure, there is provided a water purifier with a water leakage protection function, including: the water leakage detection device comprises a machine shell, a filter element, a water circuit board, a water pump, a control Printed Circuit Board (PCB), a water inlet valve and a water leakage detection capacitor, wherein the filter element, the water circuit board, the water pump, the control PCB, the water inlet valve and the water leakage detection capacitor are arranged in the machine shell;

the water circuit board, the water pump and the water inlet valve are all electrically connected with the control PCB;

the water leakage detection capacitor is positioned on the inner side of the bottom shell of the water purifier and is also electrically connected with the control PCB; the capacitance value of the water leakage detection capacitor can change when water exists or does not exist on the outer side of the bottom shell of the water purifier, and the control PCB controls the opening and closing state of the water inlet valve according to the capacitance value.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the water purifier includes: the water leakage detection device comprises a machine shell, a filter element, a water circuit board, a water pump, a control Printed Circuit Board (PCB), a water inlet valve (not shown in the figure) and a water leakage detection capacitor, wherein the filter element, the water circuit board, the water pump, the control PCB, the water inlet valve and the water leakage detection capacitor are arranged in; the water circuit board, the water pump, the water inlet valve and the water leakage detection capacitor are all electrically connected with the control PCB; the water leakage detection capacitor is positioned on the inner side of the bottom shell of the water purifier; the capacitance value of the water leakage detection capacitor can change when water exists or does not exist on the outer side of the bottom shell of the water purifier, and the control PCB controls the opening and closing state of the water inlet valve according to the capacitance value. Because the detection electric capacity that leaks has the casing that can separate the water purifier and detects the characteristic whether there is water under the water purifier casing, consequently, the detection electric capacity that leaks need not to pass the casing and can realize having water to the chassis bottom and exist and detect, and product appearance wholeness is better, can provide bigger design degree of freedom for product appearance molding, and the detection electric capacity that leaks moreover can not contact with water, has effectively promoted power consumption safety.

In one embodiment, the water purifier further includes: mounting support legs; the preset position of the bottom shell of the water purifier protrudes in the direction away from the interior of the water purifier to form a groove;

one end of the mounting support leg is arranged on the outer side of the bottom shell of the water purifier; the other end of the mounting support leg is placed on the mounting table top;

the water leakage detection capacitor is positioned at the bottom of the groove.

In one embodiment, the water leak detection capacitor is made of a metal material.

In one embodiment, the water leak detection capacitor includes a sheet structure.

In one embodiment, the water leakage detection capacitor includes: a stretchable structure.

In one embodiment, the water leakage detection capacitor includes: a net structure.

In one embodiment, the distance between the bottom of the recess and the mounting table is less than or equal to 5mm and greater than or equal to 1 mm.

In one embodiment, the water inlet valve comprises: water inlet solenoid valve.

In one embodiment, the method further comprises: a fixed part;

the fixing part is fixedly arranged in the shell, and the water leakage detection capacitor is arranged on the fixing part.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural view of a water purifier with a water leakage protection function according to an exemplary embodiment.

Fig. 2 is a schematic structural view of a water purifier with a water leakage protection function according to an exemplary embodiment.

Fig. 3 is a schematic structural view illustrating a water purifier having a water leakage protecting function according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Fig. 1 is a schematic structural view of a water purifier with a water leakage protection function according to an exemplary embodiment, as shown in fig. 1, including: a casing 1, a filter element 2 disposed inside the casing 1, a water path plate 3, a water pump 4, a control Printed Circuit Board (PCB) 5, a water inlet valve (not shown) and a leakage detection capacitor 6;

the water circuit board 3, the water pump 4 and the water inlet valve are all electrically connected with the control PCB 5;

the water leakage detection capacitor 6 is positioned at the inner side of the bottom shell 1 of the water purifier, and the water leakage detection capacitor 6 is also electrically connected with the control PCB 5; the capacitance value of the water leakage detection capacitor 6 can be changed when water exists or does not exist on the outer side of the bottom shell 1 of the water purifier, and the control PCB5 controls the opening and closing state of the water inlet valve according to the capacitance value.

In the correlation technique, the water purifier product has the risk of leaking from the pipeline joint to certain probability because of inside pipe connection is more. If the machine can not monitor the water leakage condition, the machine works in the water leakage state for a long time, and the installation environment of a user is damaged. Most of water purifier products on the market adopt a mode of a double-electrode probe, the probe penetrates through the bottom of the machine shell 1 and extends out of the products, when the water leakage level reaches a certain height, the double electrodes are conducted by water to generate signal change, and the signal change is fed back to a machine to perform corresponding protection operations such as valve closing.

Because of the theory of operation restriction, the bipolar electrode probe need wear out to casing 1 outside, causes product appearance molding to be destroyed on the one hand, and on the other hand user probably can't accept the electrified part that exposes in the psychology, worry about the safety risk of using electricity.

In order to solve the above technical problem, in the present disclosure, a water leakage detection capacitor 6 is disposed inside the bottom of the water purifier housing 1, and a capacitance value of the water leakage detection capacitor 6 changes when water is present and absent outside the water purifier housing 1 (i.e., water is present and absent on the installation table surface at the bottom of the water purifier), for example: if the water purifier is placed on the mounting table face, when having water and anhydrous on the mounting table face of water purifier bottom, the capacitance value that detects electric capacity 6 leaks is different, and the capacitance value when having water is greater than the capacitance value when anhydrous, promptly, when the water purifier leaks, has water on the mounting table face of water purifier bottom this moment, so corresponding, the capacitance value that detects electric capacity 6 leaks can change, and at this moment, control PCB5 alright judge whether the water purifier leaks with the capacitance value through detecting electric capacity 6 leaks. Therefore, in the present disclosure, the water leakage detection capacitor 6 can monitor whether the water leakage condition exists at the bottom of the water purifier by changing the capacitance value in the presence and absence of water, and perform corresponding treatment, so as not to let the water purifier continuously leak water, for example: the closing of the water inlet valve is controlled.

Because the water leakage detection capacitor 6 has the characteristic that whether water exists at the bottom of the water purifier casing 1 can be detected through the casing 1 of the water purifier, holes do not need to be formed at the bottom of the casing 1, the integrity of the casing 1 is kept, the appearance shape of a product does not need to be damaged, and further, because the casing 1 is complete, the water leakage detection capacitor 6 cannot be in contact with the water, so that the problem of electricity utilization safety cannot occur.

When setting up a detection electric capacity 6 that leaks in the water purifier bottom, if this length of detecting electric capacity 6 that leaks is long enough, for example can cover whole water purifier bottom, then, no matter which position of water purifier bottom leaks, it can the sensing all to leak detection electric capacity 6 to arouse self capacitance value to change, so that control PCB5 alright judge whether the water purifier leaks through the capacitance value of detecting electric capacity 6 that leaks. However, if the length of the water leakage detection capacitor 6 is not long enough, only a small part of the bottom of the water purifier can be covered, then, only when the water level is below the water leakage detection capacitor 6, the water leakage detection capacitor 6 can sense the water leakage, so that the capacitance value of the water leakage detection capacitor 6 changes, so that the control PCB5 can judge whether the water purifier leaks water or not through the capacitance value of the water leakage detection capacitor 6, under the condition, water in other places at the bottom is enough, but the water leakage detection capacitor 6 cannot sense the water leakage detection capacitor 6, so that the water leakage detection is unreliable, at the moment, in order to improve the reliability of the water leakage detection, a plurality of water leakage detection capacitors 6 can be arranged at the bottom, and the water leakage detection capacitors 6 cover the bottom of the whole water purifier, so that the water leakage detection capacitor 6 can sense the.

In this embodiment, the water purifier includes: the water leakage detection device comprises a machine shell, a filter element, a water circuit board, a water pump, a control Printed Circuit Board (PCB), a water inlet valve (not shown in the figure) and a water leakage detection capacitor, wherein the filter element, the water circuit board, the water pump, the control PCB, the water inlet valve and the water leakage detection capacitor are arranged in; the water circuit board, the water pump, the water inlet valve and the water leakage detection capacitor are all electrically connected with the control PCB; the water leakage detection capacitor is positioned on the inner side of the bottom shell of the water purifier; the capacitance value of the water leakage detection capacitor can change when water exists or does not exist on the outer side of the bottom shell of the water purifier, and the control PCB controls the opening and closing state of the water inlet valve according to the capacitance value. Because the detection electric capacity that leaks has the casing that can separate the water purifier and detects the characteristic whether there is water under the water purifier casing, consequently, the detection electric capacity that leaks need not to pass the casing and can realize having water to the chassis bottom and exist and detect, and product appearance wholeness is better, can provide bigger design degree of freedom for product appearance molding, and the detection electric capacity that leaks moreover can not contact with water, has effectively promoted power consumption safety.

In one embodiment, as shown in fig. 2, the water purifier further includes: mounting feet 7; a groove 8 is formed by protruding a preset position of the bottom shell 1 of the water purifier in a direction away from the interior of the water purifier;

one end of the mounting support leg 7 is arranged at the outer side of the bottom shell 1 of the water purifier; the other end of the mounting support leg 7 is placed on the mounting table-board;

the water leakage detection capacitor 6 is positioned at the bottom of the groove 8.

In practical application, in order to avoid the direct contact of the casing 1 at the bottom of the water purifier with the installation table, the installation support legs 7 are arranged at the bottom of the water purifier to increase the height of the casing 1 at the bottom from the installation table. However, in this way, since the distance from the bottom of the housing 1 to the mounting platform is increased compared to the structure without the mounting support legs 7, the sensing strength of the water leakage detecting capacitor 6 is reduced, that is, at this time, enough water (the amount of water is much greater than the amount of water without the mounting support legs 7) needs to be on the mounting platform to change the capacitance value of the water leakage detecting capacitor 6, in order to improve the sensitivity of the water leakage detecting capacitor 6, a groove 8 (also called as a convex hull) is formed at the preset position of the housing 1 at the bottom of the water purifier in a direction away from the inside of the water purifier, the water leakage detecting capacitor 6 is located at the bottom of the groove 8, so that the distance between the water leakage detecting capacitor 6 and the mounting platform is reduced, thereby improving the sensitivity of the water leakage detecting capacitor 6, when a small amount of water is leaked on the mounting platform, the capacitance value of the detecting capacitor 6 is changed, so that the control PCB5 can determine whether the water purifier leaks water by the capacitance of the water leakage detection capacitor 6, thereby improving the reliability of water leakage detection.

In an implementation, can set up a plurality of above-mentioned recesses 8 in water purifier bottom casing 1, all place the detection electric capacity 6 that leaks in every recess 8, these some detection electric capacity 6 that leak cover whole water purifier bottom, no matter what the water leakage of water purifier to which part of mounting table top like this, the detection electric capacity 6 that leaks all can the sensing to make control PCB5 alright judge whether the water purifier leaks with the capacitance value through the detection electric capacity 6 that leaks.

In this embodiment, through setting up installation stabilizer blade 7 and recess 8, promoted the reliability that electric leakage detection capacitance detected when can effectively avoiding casing 1 bottom direct contact installation mesa.

In one embodiment, in order to improve the sensing sensitivity of the water leakage detection capacitor 6, the water leakage detection capacitor 6 is made of a metal material, such as: iron, copper, and the like.

In one embodiment, the water leak detection capacitor 6 comprises a sheet structure (e.g., a conductive sheet metal). The water leakage detection capacitor 6 is set to be of a sheet structure and can be fully contacted with the bottom of the shell, so that the height of each position of the water leakage detection capacitor 6 from the installation table top is the same, and the detection sensitivity can be integrally improved.

In one embodiment, the water leakage detection capacitor 6 includes: a stretchable structure (e.g., a metal spring). The water leakage detection capacitor 6 is arranged to be of a telescopic structure, and can be stretched according to the length of the bottom of the water purifier, so that the bottom of the water purifier can be covered in a wider range, and the detection range is enlarged. For example: the water leakage detection capacitor 6 can be extended to the position with the same length as the bottom of the water purifier, so that the whole bottom of the water purifier can be covered.

In one embodiment, the water leakage detection capacitor 6 includes: a mesh structure (e.g., a metal woven mesh). The water leakage detection capacitor 6 is arranged to be of a net structure, so that the bottom of the water purifier can be covered in a wider range, and the detection range is enlarged.

In one embodiment, the distance between the bottom of the recess 8 and the mounting table is less than or equal to 5mm and greater than or equal to 1 mm.

When the distance between the bottom of the groove 8 and the installation table surface is larger than the preset value, the sensitivity of the water leakage detection capacitor 6 causes that a lot of water is leaked on the installation table surface to be judged, great trouble and loss are brought to a user, and the distance between the bottom of the groove 8 and the installation table surface can be set to be smaller than or equal to 5 mm. When the distance between the bottom of the groove 8 and the mounting table is smaller than a preset value, the product is easy to deform under a long-term bearing state, so that the groove 8 is possibly attached to the mounting table, the water leakage repentance of the water purifier causes that water can not leak into a gap between the groove 8 and the mounting table, and the problem of water leakage can not be detected, and at the moment, the distance between the bottom of the groove 8 and the mounting table can be set to be larger than or equal to 1 mm.

For example: the distance between the bottom of the recess 8 and the mounting table can be set to 2mm or 3 mm.

The distance between the bottom of the recess 8 and the mounting table described in the above embodiments can be understood as: the distance between the side of the bottom of the recess 8 near the mounting table and the surface of the mounting table.

Wherein, because the mounting feet 7 are placed on the mounting table, the distance between the bottom of the groove 8 and the mounting table can also be understood as: the distance between the side of the bottom of the recess 8 close to the mounting table and the side of the bottom of the mounting foot 7 in contact with the mounting table.

In one embodiment, the water inlet valve comprises: water inlet solenoid valve.

In order to reliably close the water inlet valve when the water purifier leaks water, the control PCB5 can set the water inlet valve as an electromagnetic valve, so that when the control PCB5 determines that the water purifier leaks water through the capacitance of the water leakage detection capacitor 6, the electromagnetic valve can be controlled to close through signal transmission operation.

By arranging the electromagnetic valve, the control PCB5 can control the electromagnetic valve to be opened and closed through signal transmission operation, so that the normal water taking operation of a user is realized, and the valve at the water inlet end is closed to protect when the abnormal water leakage condition is monitored.

In one embodiment, as shown in fig. 3, further comprising: a fixed portion 9;

the fixing portion 9 is fixed inside the casing 1, and the leakage detecting capacitor 6 is disposed on the fixing portion 9.

In order to reliably fix the water leakage detection capacitor 6, a fixing portion 9 may be provided inside the housing 1, and the water leakage detection capacitor 6 may be fixed to the fixing portion 9, thereby preventing the water leakage detection capacitor 6 from being displaced when the water purifier moves. Illustratively, the fixing portion 9 may include: a PCB on which the water leakage detecting capacitor 6 may be disposed at this time.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (9)

1. The utility model provides a water purifier of protection function leaks in area which characterized in that includes: the water leakage detection device comprises a machine shell, a filter element, a water circuit board, a water pump, a control Printed Circuit Board (PCB), a water inlet valve and a water leakage detection capacitor, wherein the filter element, the water circuit board, the water pump, the control PCB, the water inlet valve and the water leakage detection capacitor are arranged in the machine shell;

the water circuit board, the water pump and the water inlet valve are all electrically connected with the control printed circuit board PCB;

the water leakage detection capacitor is positioned on the inner side of the bottom shell of the water purifier and is also electrically connected with the control printed circuit board PCB; the capacitance value of the water leakage detection capacitor can change when water exists or does not exist on the outer side of the bottom shell of the water purifier, and the control printed circuit board PCB controls the opening and closing state of the water inlet valve according to the capacitance value.

2. The water purifier according to claim 1, further comprising: mounting support legs; the preset position of the bottom shell of the water purifier protrudes in the direction away from the interior of the water purifier to form a groove;

one end of the mounting support leg is arranged on the outer side of the bottom shell of the water purifier; the other end of the mounting support leg is placed on the mounting table top;

the water leakage detection capacitor is positioned at the bottom of the groove.

3. The water purifier as recited in claim 1 or 2, wherein the water leakage detecting capacitor is composed of a metal material.

4. The water purifier as recited in claim 3, wherein the water leakage detection capacitor comprises a sheet structure.

5. The water purifier according to claim 3, wherein the water leakage detection capacitor includes: a stretchable structure.

6. The water purifier according to claim 3, wherein the water leakage detection capacitor includes: a net structure.

7. The water purifier according to claim 2, wherein a distance between the bottom of the groove and the mounting surface is less than or equal to 5mm and greater than or equal to 1 mm.

8. The water purifier of claim 1, wherein the water inlet valve comprises: water inlet solenoid valve.

9. The water purifier according to claim 1, further comprising: a fixed part;

the fixing part is fixedly arranged in the shell, and the water leakage detection capacitor is arranged on the fixing part.

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