CN215424157U - Water retention amount display system of water tank and coffee machine - Google Patents

Abstract

The utility model belongs to the technical field of coffee machine equipment, and particularly relates to a water retention amount display system of a water tank and a coffee machine, wherein the coffee machine comprises the water tank, the water retention amount display system of the water tank, a coffee carrying vessel, a heating circuit and a display panel; the water retention amount display system of the water tank comprises a water level sensor, a water level detection processing circuit, an LED lamp driving circuit, a control unit and a water retention amount display LED lamp; the water level sensor is installed on a preset water level of the water tank. The above scheme judges whether the initial water level of the water tank is sufficient or not based on the water level induction of the water tank and realizes the countdown display of the brewing progress. The user shows the LED lamp through observing the water volume of remaining and has direct-viewing impression to the water level of water tank and the degree of progress of making a bubble, lets the user know the state of making a bubble action, especially to the coffee machine that uses the thermo jug, because of the thermo jug is closing device, this display system more shows the usefulness, and the predictability is made a bubble after the certain time and can be accomplished, can enjoy fresh coffee like this.

Description

Water retention amount display system of water tank and coffee machine

Technical Field

The utility model belongs to the technical field of coffee machine equipment, and particularly relates to a water retention amount display system of a water tank and a coffee machine.

Background

As people apply electronic technology to coffee machines, the use of coffee machines is more and more convenient. However, the taste of coffee brewed by a coffee machine is not always satisfactory. After the coffee is brewed, the coffee is stored in a coffee carrying vessel (a transparent glass pot or a closed heat preservation pot), if people do not take out the coffee in time, the coffee stored in the coffee carrying vessel is not properly preserved in heat, and the taste of the coffee usually has stale flavor, excessive extraction, scorching and the like. While people who drink coffee always like to drink freshly brewed fresh coffee, hot coffee is delicious and tasty, so people who brew coffee always want to know when coffee brewing is completed and how long the coffee brewing can be completed if the coffee brewing is not completed. None of these are shown in the prior art coffee maker apparatus. In addition, before or after the coffee is brewed, some models of coffee maker have to open the water tank to know whether the water level of the water tank is sufficient or not or use up, and some models of coffee maker have a built-in water gauge or a water tank window to indicate the water level of the water tank. The coffee carrying vessel is not necessarily transparent (such as a thermos), so that the user can not observe the brewing state of the coffee. In view of this, the applicant develops another water level display mode of the water tank, which is applicable to the above various models.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a water retention amount display system of a water tank and a coffee machine, and aims to solve the technical problems that in the prior art, the water level marking mode of the water tank of the coffee machine is limited, the coffee brewing progress is not displayed, and a user cannot perceive the coffee brewing progress.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

a water retention amount display system of a water tank is used for storing water for brewing coffee and comprises a water level sensor, a water level detection processing circuit, an LED lamp driving circuit, a control unit and a water retention amount display LED lamp; the water level sensor is installed on a preset water level of the water tank and is electrically connected with the water level detection processing circuit, the water level detection processing circuit and the LED lamp driving circuit are respectively electrically connected with the corresponding input end and the corresponding output end of the control unit, and the water retention amount display LED lamp is electrically connected with the LED lamp driving circuit; the LED lamp with the water retention amount display function comprises a light guide strip and a plurality of LED lamp beads, wherein the light guide strip is arranged according to a preset shape, and the LED lamp beads are sequentially embedded on the light guide strip.

When the water remaining amount display system is powered on, the control unit outputs a corresponding control instruction to the LED lamp driving circuit according to the initial water level of the water tank, and sequentially lights one part of LED lamp beads of the water remaining amount display LED lamp along a certain direction; if the initial water level of the water tank is zero, the LED lamp beads of the LED lamp are not lighted, and if the initial water level of the water tank reaches or exceeds the preset water level of the water level sensor, the LED lamp beads of the LED lamp are all lighted; a user knows whether the initial water level of the water tank is enough or not by observing how many LED lamp beads are lighted, and further determines whether water needs to be added into the water tank or not; if the initial water level of the water tank is insufficient and water needs to be added, in the process of adding water into the water tank, the control unit continues to output a corresponding control instruction to the LED lamp driving circuit, the remaining unlighted LED lamp beads of the LED lamp are continuously and sequentially lightened along a certain direction to display the remaining unlighted LED lamp beads of the LED lamp until the water level of the water tank reaches the preset water level of the water level sensor, at the moment, the LED lamp beads of the LED lamp are all lightened by displaying the remaining water amount, and at the moment, a user can determine whether to continue adding water according to the coffee demand; after water is added, in the coffee brewing process, the water in the water tank flows out to be used for brewing coffee, the water level of the water tank slowly drops, when the water level of the water tank drops to a preset water level where the water level sensor is located after a plurality of times, the water level sensor is triggered, a detection signal is output to the control unit through the water level detection processing circuit, the control unit receives the detection signal, then the control unit obtains the extinguishing frequency of the lighted LED lamp beads of the water retention quantity display LED lamp within a certain time through operation, outputs a corresponding control instruction to the LED lamp driving circuit, sequentially counts down the lighted LED lamp beads of the water retention quantity display LED lamp along a certain direction, until all the LED lamp beads of the water retention quantity display LED lamp are extinguished, at the moment, the water level of the water tank is zero, and the coffee brewing is completed or is nearly completed. The above scheme judges whether the initial water level of the water tank is sufficient or not based on the water level induction of the water tank and realizes the countdown display of the brewing progress. The user shows that the LED lamp has a visual feeling to the water level and the brewing progress of the water tank by observing the water retention amount, so that the user knows the state of the brewing action, can predict that the brewing can be finished after a certain time, and can enjoy fresh coffee.

Optionally, the water level sensor is a mercury switch or a micro switch or a reed switch.

Optionally, the light guide strip is arranged in any shape of a ring, a line or a rectangle, and the LED lamp beads are embedded on the light guide strip at equal intervals in sequence; when the water level of the water tank reaches or exceeds the preset water level of the water level sensor, the water retention amount display LED lamp realizes any lighting mode of annular lighting, linear lighting or matrix lighting so as to indicate that the water level of the water tank is enough.

Optionally, the water retention amount display system further comprises a voice prompt unit, and the voice prompt unit is electrically connected with the control unit; when the water level of the water tank is reduced to the preset water level and/or the water level of the water tank is reduced to zero in the coffee brewing process, the control unit outputs a corresponding control instruction to the voice prompt unit to send out voice prompt.

The embodiment of the utility model also provides a coffee machine, which comprises a water tank, a water retention amount display system of the water tank, a coffee carrying vessel, a heating circuit and a display panel; the water retention amount display system comprises a water level sensor, a water level detection processing circuit, an LED lamp driving circuit, a control unit and a water retention amount display LED lamp; the water retention amount display LED lamp is arranged on the display panel, and the heating circuit is electrically connected with the control unit; the water tank is used for storing water for brewing coffee, and the water in the water tank enters the coffee carrying vessel for brewing coffee after being heated by the heating circuit in the brewing process.

Optionally, the coffee maker further comprises a temperature controller and a timing display, the heating circuit is electrically connected with the control unit through the temperature controller, and the timing display is mounted on the display panel and electrically connected with the control unit; and when the brewing is finished, triggering the temperature controller to preserve the temperature of the brewed coffee, and triggering the timing display to time and display the heat preservation time.

Optionally, the light guide bar is an annular light guide bar, and the timing display is located at an intra-annular middle position of the annular light guide bar.

The water retention amount display system of the water tank and the coffee machine have the following beneficial effects:

judging whether the initial water level of the water tank is enough or not according to the corresponding relation between the initial water level of the water tank sensed by the water level sensor and the lighting condition of the LED lamp and the water remaining amount display, if the initial water level of the water tank is insufficient, adding water into the water tank by a user until the water level of the water tank reaches or exceeds the preset water level of the water level sensor, and at the moment, displaying that all LED lamp beads of the LED lamp are lighted according to the water remaining amount; in the coffee brewing process, when the water level of the water tank is reduced to the preset water level where the water level sensor is located, the lighted LED lamp beads of the LED lamp with the water retention amount display are sequentially counted down along a certain direction to be turned off until all the LED lamp beads of the LED lamp with the water retention amount display are turned off, and at the moment, the water level of the water tank is zero and the coffee brewing is completed or is nearly completed. The scheme judges whether the initial water level of the water tank is enough or not based on the water level induction of the water tank and realizes the countdown display of the brewing progress. The user shows the LED lamp through observing the water volume of remaining and has direct-viewing impression to the water level of water tank and the degree of progress of making a bubble, lets the user know the state of making a bubble action, especially to the coffee machine that uses the thermo jug, because of the thermo jug is closing device, this display system more shows the usefulness, and the predictability is made a bubble after the certain time and can be accomplished, can enjoy fresh coffee like this. The timing display can also know the heat preservation time of the brewed coffee of the coffee carrying vessel after the brewing is finished.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a coffee maker according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a corresponding relationship between a water level of a water tank and a water remaining amount display LED lamp in a working process of the coffee maker according to the embodiment of the utility model;

fig. 3 is a schematic structural diagram of a coffee maker according to another embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the utility model.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In one embodiment of the present invention, as shown in fig. 1, there is provided a coffee maker comprising a water tank 10, a water retention amount display system of the water tank, a coffee carrying vessel (a transparent glass pot or a closed thermo jug) 20, a heating circuit 30, and a display panel 50; the water remaining amount display system comprises a water level sensor 60, a water level detection processing circuit 70, an LED lamp driving circuit 80, a control unit 40 and a water remaining amount display LED lamp 90; the water level sensor 60 is installed at a preset water level L0 of the water tank 10, and in this embodiment, the water level sensor 60 is positioned at a 600 ml water level L0 of the water tank 10; because one 132 ml cup of coffee usually requires 150 ml of water for brewing, and 600 ml of water can approximately brew four cups of coffee, the time for brewing four cups of coffee can be estimated for a coffee machine of a specific model (specific capacity and specific power), for example, one cup of coffee can be brewed for one minute by some models, so that the water level sensor 60 is positioned at the water level L0 of four cups of coffee (600 ml of water) in the water tank 10, the electronic control can be simplified, and the cost can be saved; four cups of coffee are also the general demand of the user, and the water level of the four cups of coffee provides four minutes of countdown time which is long enough to ensure the accuracy of the countdown turning-off action of the LED lamp beads on the water remaining quantity display LED lamp 90; the water level sensor 60 is electrically connected to the water level detection processing circuit 70, the water level detection processing circuit 70 and the LED lamp driving circuit 80 are electrically connected to the corresponding input and output terminals of the control unit 40, respectively, and the water remaining amount display LED lamp 90 is electrically connected to the LED lamp driving circuit 80 and mounted on the display panel 50; the water retention amount display LED lamp 90 comprises an annular light guide strip 91 and H LED lamp beads 92, and the LED lamp beads 92 are sequentially embedded on the annular light guide strip 91 at equal intervals. The heating circuit 30 is electrically connected to the control unit 40; the water tank 10 is used for storing water 100 for brewing coffee, and during the brewing process, the water in the water tank 10 is heated by the heating circuit 30 and then enters the coffee carrying vessel (transparent glass pot or closed thermos) 20.

The operation of the coffee maker is described below to better understand the present embodiment. As shown in fig. 2, when the coffee maker is powered on, that is, when the water remaining amount display system of the water tank is powered on, the control unit 40 outputs a corresponding control instruction to the LED lamp driving circuit 80 according to the initial water level L1 of the water tank 10, and sequentially lights a part of LED lamp beads of the water remaining amount display LED lamp 90 clockwise from the zero position of the annular light guide bar 91 (for convenience of describing the position of the LED lamp bead 92, the annular light guide bar 91 and the LED lamp bead 92 thereon are corresponding to the clock position of the clock); if the initial water level L1 of the water tank 10 is zero, the LED lamp beads 92 of the water remaining amount display LED lamp 90 are not turned on, and if the initial water level L1 of the water tank 10 reaches or exceeds the preset water level L0 at which the water level sensor 60 is located, all the LED lamp beads 92 of the water remaining amount display LED lamp 90 are turned on; a user knows whether the initial water level L1 of the water tank 10 is enough or not by observing how many LED lamp beads are lighted, and further determines whether water needs to be added into the water tank 10 or not; if the initial water level L1 of the water tank 10 is not enough to require adding water, in the process of adding water to the water tank 10, the control unit 40 continues to output a corresponding control instruction to the LED lamp driving circuit 80, and continues to sequentially light the remaining water amount display LED lamps 90 (such as H (1-L1/L0) left unlit in the clockwise direction until the water level of the water tank 10 reaches the preset water level L0 where the water level sensor 60 is located, at this time, the remaining water amount display LED lamps 90 are all lighted, so as to realize an annular lighting mode to indicate that the water level of the water tank 10 is enough, and at this time, a user can determine whether to continue adding water according to the coffee demand; the user will typically add water to a level of 750 ml to 1800 ml (for a model with a capacity of 1.8 liters) when the water level of the tank 10 is L2 or L2'. After the water is added, in the coffee brewing process, as the water in the water tank 10 flows out for brewing coffee, the water level of the water tank 10 slowly drops, but at the moment, the water level of the water tank 10 still exceeds a preset water level L0(600 ml), after a time T or T (T or T is specifically determined by the fact that the actual water amount after the water is added into the water tank 10 by a user is L2 or L2'), when the water level of the water tank 10 drops to a preset water level L0(600 ml) where the water level sensor 60 is located, the water level sensor 60 is triggered, a detection signal is output to the control unit 40 through the water level detection processing circuit 70, the control unit 40 receives the detection signal, calculates the extinguishing frequency of the lighted LED lamp beads 92 of the LED lamp 90, which are lighted in four minutes, outputs a corresponding control instruction to the LED lamp driving circuit 80, and sequentially counts down the light guide water remaining amount from the zero point of the annular strip 91 along the clockwise direction to display the lighted LED lamp beads 92 of the LED lamp 90, until all the LED beads of the LED lamp 90 are extinguished, the water level of the water tank 10 is zero and the coffee brewing is completed or nearly completed. The present embodiment judges whether the initial water level L1 of the water tank 10 is sufficient based on the water level sensing of the water tank 10 and realizes the countdown display of the brewing progress. The user can visually feel the water level and the brewing progress of the water tank 10 by observing the water retention amount display LED lamp 90, so that the user can know the brewing action state and can predict that the brewing can be finished after a certain time, and thus, the user can enjoy fresh coffee.

In another embodiment of the present invention, the coffee maker further comprises a temperature controller 110 and a timing display 120, wherein the heating circuit 30 is electrically connected to the control unit 40 through the temperature controller 110, and the timing display 120 is mounted on the display panel 50 and electrically connected to the control unit 40; in the present embodiment, the timing display 120 is located at an intra-ring middle position of the ring-shaped light guide bar 91. When the brewing is finished, the temperature controller 110 is triggered to keep the temperature of the brewed coffee, and the timing display 120 is triggered to time and display the heat preservation time, so that the heat preservation time of the brewed coffee of the coffee carrying vessel can be known through the timing display 120 after the brewing is finished.

In another embodiment of the utility model, the water level sensor 60 of the water tank water retention display system is a mercury switch or a micro switch or a reed switch.

In another embodiment of the utility model, the light guide strip of the water retention amount display system of the water tank is arranged in any shape of a line or a rectangle, and the LED lamp beads are embedded on the light guide strip at equal intervals in sequence; when the water level of the water tank 10 reaches or exceeds the preset water level L0 at which the water level sensor 60 is located, the water remaining amount display LED lamp 90 implements either a line illumination or a matrix illumination mode to indicate that the water level of the water tank 10 is sufficient.

In another embodiment of the present invention, as shown in fig. 3, the water remaining amount display system of the water tank further includes a voice prompt unit 130, wherein the voice prompt unit 130 is electrically connected to the control unit 40; when the water level of the water tank 10 drops to the preset water level L0 and/or the water level of the water tank 10 drops to zero during the coffee brewing process, the control unit 40 outputs a corresponding control instruction to the voice prompt unit 130 to send a voice prompt.

The foregoing is merely a preferred embodiment of the utility model and is not intended to limit the utility model in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims (7)

1. A water retention amount display system for a water tank for storing water for brewing coffee, characterized by: the water retention amount display system comprises a water level sensor, a water level detection processing circuit, an LED lamp driving circuit, a control unit and a water retention amount display LED lamp; the water level sensor is installed on a preset water level of the water tank and is electrically connected with the water level detection processing circuit, the water level detection processing circuit and the LED lamp driving circuit are respectively electrically connected with the corresponding input end and the corresponding output end of the control unit, and the water retention amount display LED lamp is electrically connected with the LED lamp driving circuit; the LED lamp with the water retention amount display function comprises a light guide strip and a plurality of LED lamp beads, wherein the light guide strip is arranged according to a preset shape, and the LED lamp beads are sequentially embedded on the light guide strip.

2. The water retention display system of a water tank according to claim 1, characterized in that: the water level sensor is a mercury switch, a microswitch or a magnetic reed switch.

3. The water retention display system of a water tank according to claim 1, characterized in that: the light guide strip is arranged in any shape of a ring, a line or a rectangle, and the LED lamp beads are embedded on the light guide strip at equal intervals in sequence.

4. The water retention display system of a water tank according to claim 1, characterized in that: the water retention amount display system further comprises a voice prompt unit, and the voice prompt unit is electrically connected with the control unit.

5. A coffee machine characterized by: a water retention amount display system comprising a water tank, the water tank of any one of claims 1 to 4, a coffee carrying vessel, a heating circuit and a display panel; the water retention amount display system comprises a water level sensor, a water level detection processing circuit, an LED lamp driving circuit, a control unit and a water retention amount display LED lamp; the water retention amount display LED lamp is installed on the display panel, and the heating circuit is electrically connected with the control unit.

6. A coffee machine according to claim 5, characterized in that: the coffee machine further comprises a temperature controller and a timing display, the heating circuit is electrically connected with the control unit through the temperature controller, and the timing display is installed on the display panel and electrically connected with the control unit.

7. A coffee machine according to claim 6, characterized in that: the light guide strip is an annular light guide strip, and the timing display is located in the middle position in the ring of the annular light guide strip.

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