CN216135677U - Water dispenser - Google Patents
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- CN216135677U CN216135677U CN202121791140.7U CN202121791140U CN216135677U CN 216135677 U CN216135677 U CN 216135677U CN 202121791140 U CN202121791140 U CN 202121791140U CN 216135677 U CN216135677 U CN 216135677U
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Abstract
The application discloses a water dispenser. The water dispenser comprises: the frame body consists of a side plate, a cover plate and a bottom plate, wherein the side plate, the cover plate and the bottom plate form an accommodating cavity for accommodating the water storage container, and the water storage container is arranged on the bottom plate; one end of the water taking mechanism is arranged in the accommodating cavity and is connected with the water storage container, and the other end of the water taking mechanism extends to one side of the cover plate, which is far away from the accommodating cavity, and is used for pumping water in the water storage container out of the frame body; and the capacitance liquid level sensor is fixedly arranged on the bottom plate and used for detecting the water level in the water storage container. Through the mode, the non-contact detection of the water level in the water storage container can be realized, the water dispenser is simplified, the volume is reduced, the cost is reduced, and the accuracy of the water level detection is improved.
Description
Technical Field
The application relates to the technical field of drinking equipment, in particular to a water dispenser.
Background
The water dispenser needs to detect the water level in a water storage container through a liquid level sensor so as to control the functions of water outlet, heating and the like.
The existing water dispenser generally adopts liquid level sensors such as a mechanical floating ball, a reed pipe or a capacitance liquid level sensor to realize the detection of the water level in a water storage container; however, the mechanical floating ball and reed switch are complex in structure and large in volume, and the capacitive liquid level sensor on the existing water dispenser needs to be in contact with water for contact detection, so that the miniaturization of volume, the simplification of device and the low cost cannot be realized.
SUMMERY OF THE UTILITY MODEL
The technical problem that this application mainly solved provides a water dispenser to realize the non-contact detection to water storage container middle water level, and simplify the water dispenser, reduce its volume and reduce its cost, and improve the precision that the water level detected.
In order to solve the technical problem, the application adopts a technical scheme that: a water dispenser is provided. The water dispenser comprises: the frame body consists of a side plate, a cover plate and a bottom plate, wherein the side plate, the cover plate and the bottom plate form an accommodating cavity for accommodating the water storage container, and the water storage container is arranged on the bottom plate; one end of the water taking mechanism is arranged in the accommodating cavity and is connected with the water storage container, and the other end of the water taking mechanism extends to one side of the cover plate, which is far away from the accommodating cavity, and is used for pumping water in the water storage container out of the frame body; and the capacitance liquid level sensor is fixedly arranged on the bottom plate and used for detecting the water level in the water storage container.
In a particular embodiment, the capacitive liquid level sensor comprises: the capacitor polar plate is fixedly arranged on one side of the bottom plate close to the water storage container and extends along the peripheral direction of the bottom of the water storage container; and the sensing chip is electrically connected with the capacitor plate and used for converting the capacitance value of the capacitor plate into a corresponding water level.
In a specific embodiment, the projection of the capacitor plate on the bottom plate is located in the projection of the bottom of the water storage container and the abutting part of the bottom plate on the bottom plate.
In one embodiment, a limiting portion is disposed on one side of the bottom plate close to the accommodating cavity and is matched with the bottom of the water storage container to limit the water storage container, and the capacitor plate is disposed between the limiting portion and the water storage container.
In a particular embodiment, the capacitive liquid level sensor comprises: and the two capacitor plates are respectively and electrically connected with the sensing chip, and the sensing chip converts the differential capacitance values on the two capacitor plates into corresponding water levels.
In one embodiment, the two capacitor plates are disposed coplanar.
In one embodiment, the bottom of the water storage container and the abutting portion of the bottom plate are arranged in a circular ring, and the two capacitor plates are respectively arranged in an arc shape and spaced apart from each other.
In a specific embodiment, the projections of the two capacitor plates on the bottom plate are point-symmetrically arranged by taking the center of the circular ring as a center.
In one embodiment, the two capacitor plates are parallel and spaced apart.
In one embodiment, the frame further includes a door panel, and the door panel, the side panel, the cover panel and the bottom panel form a closed accommodating cavity.
The beneficial effects of the embodiment of the application are that: the water dispenser of this application includes: the frame body consists of a side plate, a cover plate and a bottom plate, wherein the side plate, the cover plate and the bottom plate form an accommodating cavity for accommodating the water storage container, and the water storage container is arranged on the bottom plate; one end of the water taking mechanism is arranged in the accommodating cavity and is connected with the water storage container, and the other end of the water taking mechanism extends to one side of the cover plate, which is far away from the accommodating cavity, and is used for pumping water in the water storage container out of the frame body; and the capacitance liquid level sensor is fixedly arranged on the bottom plate and used for detecting the water level in the water storage container. Through the mode, the accommodating cavity of the water dispenser for accommodating the water storage container is formed by the side plate, the cover plate and the bottom plate, and the capacitor liquid level sensor is arranged on the bottom plate, so that the capacitor liquid level sensor can accurately detect the water level of the water storage container in a non-contact mode, and a user can conveniently replace the water storage container; this application just can realize just detecting water storage container's water level through the electric capacity level sensor who sets up on the bottom plate in holding chamber, simple structure, small and with low costs. Therefore, the water level detection device can realize non-contact detection of the water level in the water storage container, simplify the water dispenser, reduce the volume of the water dispenser and reduce the cost of the water dispenser. And the longitudinal direction (height direction) of the water storage container arranged on the bottom plate is deeper, so that the capacitance liquid level sensor arranged on the bottom plate can detect the water level of the water storage container more finely, and the accuracy of water level detection can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of a water dispenser of the present application;
FIG. 2 is a schematic structural diagram of an embodiment of a water dispenser of the present application;
FIG. 3 is a diagram showing the polarization effect of the capacitor plate in the water dispenser of the embodiment of FIG. 2;
FIG. 4 is a graph showing the relationship between the water level and the capacitance of the water dispenser of the embodiment of FIG. 2;
FIG. 5 is a schematic structural view of an embodiment of a water dispenser of the present application;
FIG. 6 is a graph showing the relationship between the water level and the capacitance of the water dispenser of the embodiment of FIG. 5;
FIG. 7 is a schematic view of the operation of the water level detection system of the present application.
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.
In the description of the embodiments of the present application, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
In the embodiments of the present application, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The application provides a water dispenser, as shown in fig. 1, fig. 1 is a schematic structural diagram of an embodiment of the water dispenser. The water dispenser 10 of the present embodiment includes: a frame 110, a water intake mechanism 120 and a capacitance liquid level sensor (not shown); the frame body 110 is composed of a side plate 111, a cover plate 112 and a bottom plate 114, wherein the side plate 111, the cover plate 112 and the bottom plate 114 form an accommodating cavity (not shown), the accommodating cavity is used for accommodating the water storage container 140, and the water storage container 140 is arranged on the bottom plate 114; one end of the water taking mechanism 120 is disposed in the accommodating cavity and connected to the water storage container 140, the other end of the water taking mechanism 120 extends to a side of the cover plate 112 away from the accommodating cavity, and the water taking mechanism 120 is used for pumping water in the water storage container 140 out of the frame body 110; the capacitive liquid level sensor is fixedly disposed on the bottom plate 114 for detecting the water level in the water storage container 140.
The capacitive liquid level sensor of the embodiment is arranged outside the water storage container 140, so that the non-contact liquid level detection of the water storage container 140 can be realized, the structure and the installation process of the water dispenser 10 can be simplified, and the sanitation and the safety of drinking water can be ensured.
The non-contact liquid level detection utilizes the inductive capacitance of water to detect whether liquid exists or not, when no liquid is close to the capacitive liquid level sensor, the capacitive liquid level sensor is provided with a certain static capacitance to the ground due to the existence of distributed capacitance, when the liquid level slowly rises to be close to the capacitive liquid level sensor, the parasitic capacitance of the liquid is coupled to the static capacitance, the capacitance value of the capacitive liquid level sensor is increased, the changed capacitance is converted into the variable quantity of a certain electric signal, and then the water level corresponding to the variable quantity is obtained by a certain algorithm.
The side plate 111, the cover plate 112 and the bottom plate 114 of the present embodiment are made of waterproof materials; the side plate 111 is made of a material having a certain rigidity and capable of supporting the cover plate 112, the water intake mechanism 120, other drinking components (not shown) disposed on the cover plate 112, etc.; the material of the cover plate 112 should have high temperature resistance characteristics so that a heating device (not shown) can directly heat the cover plate 112 after taking water.
Different from the prior art, the accommodating cavity of the water dispenser 10 for accommodating the water storage container 140 is formed by the side plate 111, the cover plate 112 and the bottom plate 114, and the bottom plate 114 is provided with the capacitive liquid level sensor, so that the capacitive liquid level sensor can accurately detect the water level of the water storage container 140 in a non-contact manner, and a user can replace the water storage container 140 in time; the water level of the water storage container 140 can be detected only by the capacitive liquid level sensor arranged on the bottom plate 114 of the accommodating cavity, and the water storage container is simple in structure, small in size and low in cost. Therefore, the embodiment can realize the non-contact detection of the water level in the water storage container 140, simplify the water dispenser 10, reduce the volume thereof and reduce the cost thereof. And the longitudinal direction (height direction) of the water storage container 140 disposed on the bottom plate 114 is relatively deep, so that the capacitance liquid level sensor disposed on the bottom plate 114 can detect the water level of the water storage container 140 more finely, and the accuracy of water level detection can be improved.
Optionally, the capacitive liquid level sensor of this embodiment comprises: a capacitor plate 131 and a sensor chip (not shown); the capacitor plate 131 is fixedly arranged on the bottom plate 114 by means of pasting or clamping, and the capacitor plate 131 extends along the peripheral direction of the bottom of the water storage container 140; the sensing chip is electrically connected to the capacitor plate 131, and is configured to convert a capacitance value of the capacitor plate 131 into a corresponding water level.
The sensing chip of the embodiment adopts a capacitive sensing chip (such as MDC04), and the sensing chip utilizes the difference of dielectric constants of different substances to realize the sensing of substance components through amplification, digital conversion, related algorithms and small changes of capacitance. The non-contact detection is more sanitary and safer.
The sensing chip of the embodiment may integrate the above-mentioned conversion algorithm of the relationship between the capacitance and the water level. In other embodiments, the scaling algorithm may be integrated on the controller of the water dispenser.
The frame 110 of the present embodiment is a rectangular frame, the side plates 111 are respectively perpendicular to the cover plate 112 and the bottom plate 114, and the water storage container 140 is perpendicular to the bottom plate 114 in the height direction and parallel to the side plates 111.
The capacitor plate 131 is disposed between the bottom plate 114 and the bottom of the water storage container 140, and when the liquid level (water level) in the water storage container 140 slowly rises, the amount of the liquid near the capacitor plate 131 gradually increases, the parasitic capacitance of the liquid on the capacitor plate 131 gradually increases, so that the capacitance value of the capacitor liquid level sensor gradually increases, the electrical signal converted by the sensor chip gradually increases, and the corresponding water level value is also increased.
Optionally, the projection of the capacitor plate 131 on the bottom plate 114 of the embodiment is located in the projection of the bottom of the water storage container 140 on the bottom plate 114, so that the liquid in the water storage container 140 completely covers the capacitor plate 131, the polarization effect of the capacitor plate 131 can be improved, the accuracy of water level detection can be improved, the size of the capacitor plate 131 can be reduced, and the cost can be saved.
Optionally, a limiting portion (not shown) is disposed on a side of the bottom plate 114 close to the receiving cavity, and is matched with the bottom of the water storage container 140 to limit the water storage container 140, and the capacitor plate 131 is disposed between the limiting portion and the water storage container 140.
The shape of the limiting part on the bottom plate 114 is matched with the shape of the contact surface between the bottom of the water storage container 140 and the bottom plate 114, and the water storage container 140 can be limited on the bottom plate 114, so that the capacitor plate 131 arranged on the side plate 111 is always located at the optimal detection position of the water storage container 140, and the accuracy of water level detection can be improved.
In order to make the water storage container 140 stand on a plane better, the peripheral area of the bottom of the water storage container is arranged to be protruded outwards relative to the middle area of the bottom of the water storage container, so that a concave part can be arranged on the bottom plate 114 as a limiting part of the bottom of the water storage container, the concave part can limit the position of the water storage container 140 and can limit the position of the capacitor plate 131, namely, the capacitor plate 131 is arranged in the concave part.
Optionally, the frame 110 of the present embodiment further includes a door (not shown), and the door, the side plate 111, the cover plate 112 and the bottom plate 114 form a closed accommodating cavity. In this way, the water storage container 140 is placed in the closed accommodating cavity, so that the overall appearance and safety of the water dispenser 10 can be improved.
In other embodiments, in order to improve the convenience of replacing the water storage container and save materials, the door plate is not required.
In order to further improve the accuracy of water level detection, the present application further provides a water dispenser according to another embodiment, as shown in fig. 2, the embodiment of fig. 2 is a schematic structural diagram of an embodiment of the water dispenser according to the present application. The water dispenser 20 of the present embodiment includes: a frame 110, a water intake mechanism 120 and a capacitance liquid level sensor (not shown); the frame body 110 is composed of a side plate 111, a cover plate 112 and a bottom plate 114, wherein the side plate 111, the cover plate 112 and the bottom plate 114 form an accommodating cavity (not shown), the accommodating cavity is used for accommodating the water storage container 140, and the water storage container 140 is arranged on the bottom plate 114; one end of the water taking mechanism 120 is disposed in the accommodating cavity and connected to the water storage container 140, the other end of the water taking mechanism 120 extends to a side of the cover plate 112 away from the accommodating cavity, and the water taking mechanism 120 is used for pumping water in the water storage container 140 out of the frame body 110; the capacitive liquid level sensor is fixedly disposed on the bottom plate 114 for detecting the water level in the water storage container 140.
The water dispenser 20 of the embodiment can accurately detect the water level of the water storage container 140 in a non-contact manner, so that a user can replace the water storage container 140 in time; the water dispenser 20 of the embodiment has simple structure, small volume and low cost; and the one end of this embodiment water intaking mechanism 120 extends to the one side that the apron 112 deviates from the holding chamber on, and electric capacity level sensor sets up on curb plate 111, can improve because of apron 112 sepage to electric capacity level sensor's influence, improves the water level and detects the accuracy.
Wherein, the capacitive liquid level sensor of this embodiment includes: two capacitor plates 231 and a sensor chip (not shown); the two capacitor plates 231 are electrically connected to the sensing chip, and the sensing chip is configured to convert the differential capacitance values on the two capacitor plates 231 into corresponding water levels.
This embodiment utilizes two capacitance plates 231 and sensing chip to realize differential capacitance level sensor, can avoid capacitance level sensor to the influence of the change of the static capacitance to ground to capacitance plate 231's parasitic capacitance, and then can improve capacitance level sensor's water level detection's precision.
The sensor chip of the present embodiment can refer to the sensor chip of the above embodiments.
The capacitor plate 231 is disposed between the bottom plate 114 and the bottom of the water storage container 140, and when the liquid level (water level) in the water storage container 140 slowly rises, the amount of the liquid near the capacitor plate 231 gradually increases, the parasitic capacitance of the liquid on the capacitor plate 231 gradually increases, so that the capacitance value of the capacitor liquid level sensor gradually increases, the electrical signal converted by the sensor chip gradually increases, and the corresponding water level value also increases.
Optionally, the projection of the capacitor plate 231 on the bottom plate 114 of the embodiment is located in the projection of the bottom of the water storage container 140 on the bottom plate 114, so that the liquid in the water storage container 140 can completely cover the capacitor plate 231, the polarization effect of the capacitor plate 231 can be improved, the accuracy of water level detection can be improved, the size of the capacitor plate 231 can be reduced, and the cost can be saved.
Optionally, the two capacitor plates 231 of the embodiment are arranged in a coplanar manner, so that the polarization mode of the capacitor plates 231 can be optimized, the sensitivity of the capacitor plates 231 to the liquid in the water storage container 140 can be improved, and the water level detection efficiency and accuracy can be improved; and the two capacitor plates 231 are arranged in the same plane, so that the consistency of the sensitivity of the two capacitor plates 231 to the liquid in the water storage container 140 can be improved, and the water level detection efficiency and accuracy can be improved.
Further, two capacitor plates 231 are arranged in a coplanar manner, so that the two capacitor plates 231 can be electrically connected with the same sensing chip conveniently, and the wiring structure is simplified.
Optionally, the two capacitor plates 231 of the present embodiment are parallel and spaced apart. Two capacitor plates 231 interval sets up and can avoid mutual conductive interference, and two capacitor plates 231 parallel arrangement can optimize capacitor plates 231's polarization mode, improve capacitor plates 231 to the sensitivity of the interior liquid of water storage container 140, can improve water level detection efficiency and precision.
Further, the two capacitor plates 231 are arranged in an axisymmetric manner by using the diameter of the bottom of the water storage container 140, so that the consistency of the sensitivity of the two capacitor plates 231 to the liquid in the water storage container 140 can be improved, and the water level detection efficiency and accuracy can be improved.
The structure of the frame 110 in this embodiment can refer to the above embodiments, and is not described herein.
The difference between the water dispenser 20 of the present embodiment and the water dispenser 10 of the above embodiment is that: this embodiment adopts differential formula electric capacity level sensor, can avoid electric capacity level sensor to the influence of the change of the static electric capacity of ground to the parasitic capacitance of capacitor plate 231, and then can improve electric capacity level sensor's water level detection's precision.
As can be seen from the polarization effect diagram of the capacitor plates shown in fig. 3, in the water dispenser 20 of the present embodiment, the two parallel capacitor plates 231 are disposed on the bottom plate 114, and the water level of the water storage container can be detected more finely by the capacitor liquid level sensor disposed on the bottom plate 114 due to the relatively deep longitudinal direction (height direction) of the water storage container, so that the accuracy of water level detection can be improved.
As can be seen from the test results shown in table 1 and fig. 4, the water dispenser 20 of the present embodiment has a linear characteristic with a good effect, and the capacitance value changes linearly with the depth of the water level.
TABLE 1
| Water level cm | Capacitance value pF | Water level cm | Capacitance value pF | Water level cm | Capacitance |
| 0 | 10.682 | 12 | 14.369 | 23 | 18.128 |
| 1 | 11.457 | 13 | 14.609 | 24 | 18.35 |
| 3 | 12.043 | 14 | 14.841 | 25 | 18.547 |
| 4 | 12.591 | 15 | 15.077 | 26 | 18.776 |
| 5 | 12.762 | 16 | 15.316 | 27 | 18.949 |
| 6 | 12.965 | 17 | 15.56 | 28 | 19.139 |
| 7 | 13.201 | 18 | 16.12 | 29 | 19.286 |
| 8 | 13.421 | 19 | 16.816 | 30 | 19.707 |
| 9 | 13.655 | 20 | 17.452 | 31 | 20.231 |
| 10 | 13.913 | 21 | 17.719 | 32 | 20.452 |
| 11 | 14.145 | 22 | 17.908 | 33 | 20.627 |
The application further provides a water dispenser of another embodiment, as shown in fig. 5, fig. 5 is a schematic structural view of one embodiment of the water dispenser of the application. The difference between the water dispenser 50 of the present embodiment and the water dispenser 20 is that: the bottom of the water storage container (not shown) and the limiting portion of the bottom plate 114 are disposed in a circular ring, and the two capacitor plates 531 are respectively disposed in an arc shape and spaced apart from each other. In this way, the shape of the capacitor plate 531 can be made to be consistent with the shape of the bottom of the water storage container and the shape of the limiting part of the bottom plate 114, so that the polarization effect of the capacitor plate 531 can be improved, and the accuracy of water level detection can be improved.
Optionally, the projections of the two capacitor plates 531 on the bottom plate 114 are symmetrically arranged with the center of the circular ring as a central point; by the mode, the consistency of the sensitivity of the two capacitor plates 531 to the liquid in the water storage container can be improved, and the water level detection efficiency and accuracy can be improved.
In this embodiment, an electrode polarization mode with an arc-shaped coplanar structure is adopted, two capacitor plates 531 are adhered to the bottom plate 114, the bottom plate 114 is provided with a limiting portion of a correct placement position of the water storage container, and the outer diameter of a ring where the two capacitor plates 531 are located is smaller than the radius of the bottom of the water storage container.
In an application scene, the inner diameter of a circular ring where the two capacitor plates 531 are located is not 8cm, the outer diameter is not 12cm, and the radius of the bottom of the water storage container is 14 cm.
The working principle and other structures of the water dispenser 50 of this embodiment can refer to the embodiment of fig. 2, and are not described herein.
As can be seen from the test results shown in table 2 and fig. 6, the monotonic water level variation of the water dispenser 50 of the present embodiment can reach 25cm by adopting the polarization mode of the arc coplanar electrode.
TABLE 2
In the above embodiments of the present application, the shapes, sizes and performances of the two capacitor plates should be consistent to improve the detection effect.
The water dispenser can be a desktop water purifying dispenser, a tea bar machine and the like.
As shown in fig. 7, the capacitance values at different water levels are measured by performing a plurality of experiments in advance according to known specific use scenarios (electrode distribution, water bucket specification, water dispenser/caf e machine specification), and then performing linear regression according to the data to obtain an empirical formula, and accordingly, the relationship between the capacitance values and the water levels is deduced. The parameters of the empirical formula are pre-written into the sensor chip or the controller.
The temperature drift coefficient obtained by a capacitance measurement temperature drift characteristic experiment can be further used for temperature compensation, and a sensing chip or a controller is communicated with a capacitance liquid level sensor to read a capacitance value; and compensating the capacitance value according to the temperature drift coefficient, and then sleeving the capacitance value into an empirical formula to estimate the current water level.
The controller can further judge whether the water level is too low, if so, the sensing chip or the single chip microcomputer executes corresponding processing related codes to trigger corresponding operation, for example, triggering reminding is realized, a user is automatically reminded to add water or heating cannot be started, and therefore dry burning prevention is achieved, and the service life of the heating device is prolonged.
The water dispenser can further comprise a controller and a reminding module, the controller can be used for obtaining the experience formula, temperature drift compensation, water level height judgment and the like, and the reminding module sends out reminding signals under the control of the controller.
Difference and prior art, this application water dispenser includes: the frame body consists of a side plate, a cover plate and a bottom plate, wherein the side plate, the cover plate and the bottom plate form an accommodating cavity for accommodating the water storage container, and the water storage container is arranged on the bottom plate; one end of the water taking mechanism is arranged in the accommodating cavity and is connected with the water storage container, and the other end of the water taking mechanism extends to one side of the cover plate, which is far away from the accommodating cavity, and is used for pumping water in the water storage container out of the frame body; and the capacitance liquid level sensor is fixedly arranged on the bottom plate and used for detecting the water level in the water storage container. Through the mode, the accommodating cavity of the water dispenser for accommodating the water storage container is formed by the side plate, the cover plate and the bottom plate, and the capacitor liquid level sensor is arranged on the bottom plate, so that the capacitor liquid level sensor can accurately detect the water level of the water storage container in a non-contact mode, and a user can conveniently replace the water storage container; this application just can realize just detecting water storage container's water level through the electric capacity level sensor who sets up on the bottom plate in holding chamber, simple structure, small and with low costs. Therefore, the water level detection device can realize non-contact detection of the water level in the water storage container, simplify the water dispenser, reduce the volume of the water dispenser and reduce the cost of the water dispenser. And the longitudinal direction (height direction) of the water storage container arranged on the bottom plate is deeper, so that the capacitance liquid level sensor arranged on the bottom plate can detect the water level of the water storage container more finely, and the accuracy of water level detection can be improved.
The above description is only an embodiment of the present application, and not intended to limit the scope of the present application, and all equivalent mechanisms or equivalent processes performed by the present application and the contents of the appended drawings, or directly or indirectly applied to other related technical fields, are all included in the scope of the present application.
Claims (10)
1. A water dispenser, characterized in that it comprises:
the frame body consists of a side plate, a cover plate and a bottom plate, wherein the side plate, the cover plate and the bottom plate form an accommodating cavity for accommodating a water storage container, and the water storage container is arranged on the bottom plate;
one end of the water taking mechanism is arranged in the accommodating cavity and is connected with the water storage container, and the other end of the water taking mechanism extends to one side of the cover plate, which is far away from the accommodating cavity, and is used for pumping water in the water storage container out of the frame body;
and the capacitance liquid level sensor is fixedly arranged on the bottom plate and used for detecting the water level in the water storage container.
2. The water dispenser of claim 1, wherein the capacitive liquid level sensor comprises:
the capacitor polar plate is fixedly arranged on one side of the bottom plate close to the water storage container and extends along the peripheral direction of the bottom of the water storage container;
and the sensing chip is electrically connected with the capacitor plate and is used for converting the capacitance value of the capacitor plate into a corresponding water level.
3. The water dispenser of claim 2 wherein the projection of the capacitive plate on the floor is located within the projection of the bottom of the water storage container on the floor.
4. The water dispenser as claimed in claim 2, wherein a limiting part is arranged on one side of the bottom plate close to the accommodating cavity, the limiting part is matched with the bottom of the water storage container to limit the water storage container, and the capacitor plate is arranged between the limiting part and the water storage container.
5. The water dispenser of claim 2, wherein the capacitive liquid level sensor comprises: and the two capacitor plates are respectively and electrically connected with the sensing chip, and the sensing chip converts the differential capacitance values on the two capacitor plates into corresponding water levels.
6. The water dispenser of claim 5 wherein the two capacitive plates are disposed in a common plane.
7. The water dispenser of claim 6, wherein the bottom of the water storage container and the limiting part of the bottom plate are arranged in a circular ring shape, and the two capacitor plates are respectively arranged in an arc shape at intervals.
8. The water dispenser of claim 7, wherein the projections of the two capacitor plates on the bottom plate are arranged point-symmetrically with the center of the circular ring as the center.
9. The water dispenser of claim 6 wherein the two capacitor plates are parallel and spaced apart.
10. The water dispenser as claimed in any one of claims 1 to 9, wherein the frame further comprises a door panel, and the door panel, the side panel, the cover panel and the bottom panel form a closed accommodating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121791140.7U CN216135677U (en) | 2021-08-02 | 2021-08-02 | Water dispenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121791140.7U CN216135677U (en) | 2021-08-02 | 2021-08-02 | Water dispenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216135677U true CN216135677U (en) | 2022-03-29 |
Family
ID=80803878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121791140.7U Active CN216135677U (en) | 2021-08-02 | 2021-08-02 | Water dispenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216135677U (en) |
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2021
- 2021-08-02 CN CN202121791140.7U patent/CN216135677U/en active Active
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