CN107981726B - Instant heating water dispenser - Google Patents

Abstract

The invention discloses an instant heating water dispenser, and belongs to the technical field of water dispensers. The instant heating water dispenser mainly comprises a water dispenser shell, wherein a power supply control module is arranged in the water dispenser shell, a drinking water instant heater is arranged on a waterway channel which is connected with a bucket placing opening and a drinking water output opening, a control circuit board is correspondingly arranged on the control panel, the power supply control module supplies power to the control circuit board, and the control circuit board controls the drinking water instant heater. In addition, the device also comprises a drinking water monitoring sensor, a flow monitoring sensor, a water pump and a water quality detection sensor. The invention can realize the instant heating of the drinking water, can accurately control the water outlet temperature and the water outlet quantity, can detect the water quality, is convenient for people to use the water, and has the characteristics of safety, energy conservation and intellectualization.

Description

Instant heating water dispenser

Technical Field

The invention relates to the field of water dispensers, in particular to an instant heating water dispenser.

Background

The water dispenser is a water dispenser device frequently used in daily life of people, generally has heating and/or refrigerating functions, and meets the water drinking requirements of people.

In the prior art, the heating mode of the water dispenser has many disadvantages. The water dispenser has the problems of repeated heating and uncontrollable temperature in the heating process, and brings great trouble to users. On the one hand, after the heating is completed, if the heated water is not used or taken out for a certain time, the secondary heating is also performed. Not only wastes energy, but also reduces the activity of water and influences the water quality. On the other hand, the heating temperature is not controllable, and the water which is just heated is too high in temperature to be directly drunk. In addition, the uncontrollable water temperature cannot be suitable for different use scenes, for example, the temperature is about 80 ℃ when coffee and tea making leaves are made, and the temperature is about 40 ℃ when milk powder is made.

On the other hand, for water sources with unqualified water quality, for example, some users use tap water to be filled into a barrel to replace purified water, and the tap water can generate a large amount of scale during heating, so that the service life of a heater of the water dispenser is influenced, and the water quality is also seriously influenced.

Disclosure of Invention

The invention aims to provide an instant heating water dispenser, and solves the problems that drinking water of the water dispenser in the prior art is long in heating time and lack of accurate control on the temperature of outlet water.

In order to solve the problems, the invention provides an instant heating water dispenser which comprises a water dispenser shell, wherein the water dispenser shell is provided with a water barrel placing opening, a water dispensing outlet and a control panel, a power supply control module is arranged in the water dispenser shell, a water instant heater is arranged on a water channel which is connected with the water barrel placing opening and the water dispensing outlet and in the water dispenser shell, a control circuit board is arranged corresponding to the control panel, the power supply control module supplies power to the control circuit board, the control panel sets the outlet water temperature of drinking water, and when drinking water flows through the instant water heater, the control circuit board controls the instant water heater to heat according to the set temperature value.

In another embodiment of the instant heating water dispenser, a drinking water containing box is arranged below the water barrel placing opening, the drinking water containing box is connected with a water inlet pipe of a heater, a drinking water monitoring sensor is arranged in the drinking water containing box, and the drinking water monitoring sensor is electrically connected with the control circuit board through a first lead; the water inlet pipe of the heater is connected to the inlet of the instant drinking water heater, and the outlet of the instant drinking water heater is connected with the drinking water outlet through the water outlet pipe of the heater.

In another embodiment of the instant heating water dispenser, a drinking water containing box is arranged below the water barrel placing opening, the drinking water containing box is connected with a first output water pipe, a drinking water monitoring sensor is arranged in the drinking water containing box, and the drinking water monitoring sensor is electrically connected with the control circuit board through a first lead; the first output water pipe is connected to an inlet of a flow monitoring sensor, the flow monitoring sensor is electrically connected with the control circuit board through a second lead, and an outlet of the flow monitoring sensor is connected with a water inlet pipe of the heater; the water inlet pipe of the heater is connected to the inlet of the instant drinking water heater, and the outlet of the instant drinking water heater is connected with the drinking water outlet through the water outlet pipe of the heater.

In another embodiment of the instant heating water dispenser, a drinking water containing box is arranged below the water barrel placing opening, the drinking water containing box is connected with a first output water pipe, a drinking water monitoring sensor is arranged in the drinking water containing box, and the drinking water monitoring sensor is electrically connected with the control circuit board through a first lead; the first output water pipe is connected to an inlet of a flow monitoring sensor, the flow monitoring sensor is electrically connected with the control circuit board through a second lead, and an outlet of the flow monitoring sensor is connected with a second output water pipe; the second output water pipe is connected to an inlet of the water pump, an outlet of the water pump is connected with a water inlet pipe of the heater, and a control wiring terminal of the water pump is connected with the power supply control module and is controlled by the control circuit board; the water inlet pipe of the heater is connected to the inlet of the instant drinking water heater, and the outlet of the instant drinking water heater is connected with the drinking water outlet through the water outlet pipe of the heater.

In another embodiment of the instant heating water dispenser, a drinking water containing box is arranged below the water barrel placing opening, the drinking water containing box is connected with a first output water pipe, a drinking water monitoring sensor is arranged in the drinking water containing box, and the drinking water monitoring sensor is electrically connected with the control circuit board through a first lead; the first output water pipe is connected to an inlet of a flow monitoring sensor, the flow monitoring sensor is electrically connected with the control circuit board through a second lead, and an outlet of the flow monitoring sensor is connected with a second output water pipe; the second output water pipe is connected to an inlet of the water pump, an outlet of the water pump is connected with a third output water pipe, and a control wiring terminal of the water pump is connected with the power supply control module and is controlled by the control circuit board; the third output water pipe is connected in series to a first interface of a three-way connecting piece, a second interface of the three-way connecting piece is connected to a water quality detection sensor, the water quality detection sensor is electrically connected with the control circuit board through a third lead, and a third interface of the three-way connecting piece is connected with a water inlet pipe of the heater; the water inlet pipe of the heater is connected to the inlet of the instant drinking water heater, and the outlet of the instant drinking water heater is connected with the drinking water outlet through the water outlet pipe of the heater.

In another embodiment of the instant heating water dispenser of the invention, the water inlet pipe and the water outlet pipe of the heater are both sleeved with springs for preventing the water pipe from being folded and stopping water due to bending along the extension direction of the water pipe.

In another embodiment of the instant heating water dispenser of the invention, a temperature sensor is arranged near the outer surface of the instant drinking water heater and is electrically connected with the control circuit board through a fourth lead.

In another embodiment of the instant heating water dispenser of the invention, the control circuit board is provided with a wireless communication module, and the wireless communication module is used for transmitting the water consumption data collected by the control circuit board.

In another embodiment of the instant heating water dispenser of the invention, the instant drinking water heater is of a flat plate structure and comprises a sealing plate and a heating plate which are made of metal materials and are welded along the periphery in a seamless manner, a heating cavity for water to flow is arranged between the sealing plate and the heating plate, the heating cavity is provided with an inlet for inflow of drinking water and an outlet for outflow of the drinking water, and the heating plate comprises a substrate, a heating lead arranged on the substrate and a high-temperature-resistant insulating layer covering the heating lead.

In another embodiment of the instant heating water dispenser of the invention, the control panel comprises an operation key and a display window, the operation key comprises a start stop key, a water quantity selection key, a temperature selection key and/or a child lock key, the control circuit board is provided with a display screen, and the display window is matched with the display screen.

The invention has the beneficial effects that: the embodiment of the instant heating water dispenser provided by the invention mainly comprises a water dispenser shell, wherein a power supply control module is arranged in the water dispenser shell, a drinking water instant heater is arranged on a water channel connected with a water bucket placing opening and a drinking water outlet, a control circuit board is arranged corresponding to a control panel, the power supply control module supplies power to the control circuit board, and the control circuit board controls the drinking water instant heater. In addition, the device also comprises a drinking water monitoring sensor, a flow monitoring sensor, a water pump and a water quality detection sensor. The embodiment of the invention can realize the instant heating of the drinking water, can accurately control the water outlet temperature and the water outlet quantity, can detect the water quality, is convenient for people to use the water, and has the characteristics of safety, energy conservation and intellectualization.

Drawings

FIG. 1 is a schematic diagram of the composition of an embodiment of an instant heating water dispenser according to the present invention;

FIG. 2 is a schematic diagram of the composition of a control circuit board in another embodiment of the instant heating water dispenser according to the present invention;

FIG. 3 is a schematic diagram of heating control in another embodiment of an instant heating water dispenser according to the present invention;

FIG. 4 is a schematic diagram of the composition of another embodiment of an instant heating water dispenser according to the present invention;

FIG. 5 is a schematic view of the floating ball switch in another embodiment of the instant heating water dispenser according to the present invention;

FIG. 6 is a schematic diagram of the composition of another embodiment of an instant heating water dispenser according to the present invention;

FIG. 7 is a schematic diagram of the composition of another embodiment of an instant heating water dispenser according to the present invention;

FIG. 8 is a flow control schematic in another embodiment of an instant heating water dispenser according to the present invention;

FIG. 9 is a schematic diagram of the composition of another embodiment of an instant heating water dispenser according to the present invention;

FIG. 10 is a flow chart illustrating an embodiment of a method for instantly heating drinking water.

Detailed Description

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Fig. 1 is a schematic diagram of a first embodiment of an instant heating water dispenser of the present invention, which includes a water dispenser housing 11, the water dispenser housing is provided with a water tank placing opening 111, a drinking water output opening 112 and a control panel 113, and a power control module 12 is arranged inside the water dispenser housing, a drinking water instant heater 13 is arranged on a water channel S1 connecting the water tank placing opening 111 and the drinking water output opening 112 inside the water dispenser housing 11, a control circuit board 14 is arranged corresponding to the control panel 113, the power control module 12 supplies power to the control circuit board 14, and the control circuit board 14 controls the drinking water instant heater 13. Preferably, the control panel 113 sets the outlet temperature of the drinking water, and when the drinking water flows through the instant drinking water heater 13, the control circuit board 14 controls the instant drinking water heater 13 to heat according to the set temperature value. The water bucket placing port 111 in fig. 1 places the inverted water bucket 10. Here, the water path channel S1 is a water path pipe connecting between the water bucket placing opening 111 and the drinking water outlet 112, for example, a water flow hose having a bore of less than 1.5 cm. The drinking water instantaneous heater 13 is different from a general heater of a water dispenser in the prior art, in which drinking water in a water tank flows into the general heater, and then the general heater stops heating after heating the water to boiling, and when the temperature of the water in the general heater is reduced or the water flows into the water tank from the water tank, the general heater continues heating. Therefore, if the water in the general heater does not flow out, there is a problem that the heating is repeated. The instant drinking water heater 13 used in the present invention is used to heat water instantly in the process of water flowing into and out of the instant drinking water heater 13, that is, only water passes through the instant drinking water heater 13 to heat water, so that the problem of repeated heating does not occur.

Preferably, the water temperature of the instant drinking water heater 13 can be accurately controlled by controlling the water flow (the water outlet amount in unit time, such as liter/second), the heating time, the heating power and the like, and the water outlet amount flowing out of the water dispenser at one time can also be accurately controlled.

Preferably, the power control module 12 includes an ac input end electrically connected to the ac connection plug, the power control module 12 further includes a rectifier transformer circuit and a heating control relay, wherein the rectifier transformer circuit converts the input ac into dc, for example, converts the standard 220V ac into 12V voltage for the control circuit board 14 to directly use, and the heating control relay is connected to the power line of the instant drinking water heater 13 for controlling the on/off of the power supply of the instant drinking water heater 13. The power control module 12 supplies power to the control circuit board 14 through a direct current power line D0, in addition, a heating control line D01 is arranged between the power control module 12 and the control circuit board 14, the heating control line D01 can receive a control signal from the control circuit board 14, the control signal further controls the on/off of the power supply of the instant drinking water heater 13 through a heating control relay, and the output end of the heating control relay of the power control module 12 is electrically connected with the instant drinking water heater 13 through a heating power line D02.

Preferably, the drinking water instantaneous heater 13 is an alternating current electric heater, has a flat plate structure, and is formed by two flat metal plates (such as copper plate and stainless steel plate) in a manner of seamless welding along the periphery, namely a sealing plate and a heating plate, and a heating cavity for supplying water to flow is arranged between the sealing plate and the heating plate, and the thickness of the heating cavity is preferably 2mm to 5 mm.

Preferably, the heating plate includes a substrate, a heating wire disposed on the substrate, and a high temperature-resistant insulating layer covering the heating wire. Preferably, the heating wire is a planar wire attached to the substrate. Further preferably, the heating wires are distributed on the substrate in a winding curve shape, so that the arrangement length of the heating wires on the substrate can be prolonged, the heating area is increased, and the heating efficiency is improved in a short time. The high-temperature-resistant insulating layer covers the heating wire, so that the heating wire can be prevented from being exposed to influence the electricity utilization safety, and the outward heat dissipation of the heating wire is reduced. Because the instant drinking water heater 13 is an electric heater, alternating current terminals are arranged at two ends of a heating wire, and the instant drinking water heater 13 is also provided with a grounding terminal for safely grounding alternating current.

Preferably, a temperature control switch is connected in series with an alternating current terminal of the instant drinking water heater 13, the temperature control switch is arranged on a substrate of the heating plate, so that the temperature on the substrate can be sensed, and when the heating temperature is too high, the temperature control switch is automatically switched off, so that the heater is protected from working at too high temperature for a long time, such as the situation of dry burning without water flowing. Preferably, the limit temperature value is 135 ℃, and when the limit temperature value is higher than the limit temperature value, the temperature control switch is automatically switched off.

In addition, the heating chamber at instant heater 13 of drinking water is provided with the entry and the drinking water outflow export that the drinking water flowed in, connect heater inlet tube and heater outlet pipe respectively in entry and export, these water pipes are flexible plastic hose, the entry linkage department in heater inlet tube and heating chamber, heater inlet tube is equipped with the spring that prevents the water pipe because of the folding stagnant water of bending along water pipe extending direction cover, in the exit linkage department in heater outlet pipe and heating chamber, the heater outlet pipe also is equipped with the spring that prevents the water pipe because of the folding stagnant water of bending along water pipe extending direction cover, can avoid the water route that the water pipe buckles and cause unsmooth like this.

Preferably, the inlet of the heating cavity can be arranged at the lower part of the heating cavity of the instant drinking water heater 13, the outlet of the heating cavity is arranged at the upper part of the heating cavity, drinking water can flow through the inside of the instant drinking water heater 13 in a pressurizing mode, the flowing speed is slow because the gravity action is overcome from bottom to top, and in addition, the distribution inside the instant drinking water heater 13 is spread as far as possible, so that the heating surface of the water is increased.

Preferably, the sealing plate is provided with a plurality of depressions facing the inside of the heating cavity, and the flow direction of the drinking water in the heating cavity can be changed by arranging the depressions, so that the flow of the water is uniform, the heat conduction area of the heating cavity is increased, and the heating rate is further increased.

Preferably, a temperature sensor is arranged near the outer surface of the drinking water instant heater 13, and the temperature sensor is electrically connected with the control circuit board 14 through a fourth conducting wire. Specifically, a temperature sensor, such as a thermistor, is provided on the substrate adjacent to the outlet of the heating chamber and the heating plate, and the temperature of the heating plate, and thus the temperature of the water, can be sensed by the thermistor. Both ends of the thermistor are connected with the control circuit board 14 through a fourth wire D14, so that the control circuit board can sense the temperature of the heating plate through the resistance change of the thermistor, and further sense the temperature of the water temperature.

Preferably, the control panel 113 mainly includes manipulation keys and a display window. Wherein, the control key comprises a start stop key, a water quantity selection key, a temperature selection key and/or a child lock key. The start stop key is used for starting water receiving, and the water receiving is stopped when the key is pressed in the water receiving process. The water volume selection key is used for selecting the volume of water for one-time water receiving, the temperature selection key is used for selecting the temperature of the discharged water, and the child lock key is used for locking each control key on the control panel 113, so that the phenomenon that high-temperature water flows out due to the fact that a child mistakenly operates the panel is prevented, and scalding is caused. Preferably, the control key is an inductive key, and when the touch button is used, the action response can be obtained by touching the key area with a finger. The display window may be a transparent window made of transparent plastic, the control circuit board 14 is provided with a display screen, the display window is adapted to the display screen, and the content displayed by the display screen on the control circuit board 14 corresponding to the control panel 113 can be transparently displayed through the transparent window.

The control circuit board 14 corresponds to the control panel 113, as shown in fig. 2, the control circuit board 14 includes a processor 1401, and various interfaces and display screens connected to the processor 1401, where the interfaces include a water shortage monitoring interface 1402, a temperature monitoring interface 1403, a water quality detecting interface 1404, a flow rate monitoring interface 1405, and a power supply and control interface 1406. Moreover, a first wire is connected to the water shortage monitoring interface 1402, a second wire is connected to the flow monitoring interface 1405, a third wire is connected to the water quality detection interface 1404, and a fourth wire is connected to the temperature monitoring interface 1403. Wherein, the lack of water monitoring interface 1402 is used for providing a monitoring signal for monitoring whether water in the bucket is used up, the temperature monitoring interface 1403 is used for monitoring the temperature of the outlet water, the water quality detection interface 1404 is used for detecting the water quality, if the TDS value of the detected water is detected, the flow monitoring interface 1405 is used for measuring and monitoring the flow of the water, the power supply and control interface 1406 comprises a direct current power supply terminal, such as a 12V direct current terminal and a grounding terminal, and a control signal terminal for externally outputting by the control circuit board 14, such as an alarm signal control terminal, a motor output power control terminal and a heating switch control terminal. The power control module 12 is connected to a power supply and control interface 1406 via a dc power line for supplying power to the control circuit board 14. Corresponding to the control keys of the control panel 113, key induction coils are arranged on the control circuit board for inducing the operation of each key on the control panel 113, and the key induction coils include a start/stop key induction coil 1407, a water quantity selection key induction coil 1408, a temperature selection key induction coil 1409 and/or a child lock key induction coil 1410.

Preferably, light emitting diodes are further disposed inside the induction coils, and the light emitting diodes are turned on or off according to the pressing of the key under the control of the processor 1401.

The control circuit board 14 is further provided with a display screen, which is mainly used for setting and displaying parameters, for example, a temperature selection key can be pressed for multiple times to cyclically select multiple temperature values, which are the temperatures of the effluent water. The display contents of the display screen are displayed through the transparent display window of the control panel 113. Preferably, the display screen is a nixie display tube, and there are two groups of nixie display tubes, namely a first group of nixie display tubes 1411 and a second group of nixie display tubes 1412, which both include two parallel 8-bit nixie tubes.

Further preferably, the control circuit board 14 further includes a wireless communication module 1413, such as a mobile communication module, and a mobile communication user card corresponding to the mobile communication module, and the processor 1401 is also electrically connected to the wireless communication module 1413, so that the internet of things application mode of the water dispenser can be extended through the wireless communication module 1413, and various detection and monitoring data can be remotely transmitted through the wireless communication module, thereby adapting to the application requirements of the internet of things.

Preferably, when the water volume selection key is pressed for a time period longer than five seconds, the processor receives a long pressing signal from the water volume selection key, converts the long pressing signal into a water shortage request signal, and transmits the water shortage request signal to a drinking water supplier through the wireless communication module 1413 to prompt the drinking water supplier to increase water supply.

In conjunction with the above description, fig. 3 further shows the heating control relationship among the power control module 12, the control circuit board 14 and the drinking water instantaneous heater 13. In fig. 3, the power control module 12 is externally connected with two ac terminals 12A and 12B of ac power, the input ac power is converted into dc power by the rectification transformation circuit 1201, and the dc power is supplied to the control circuit board 14 through the dc power line D0, here, the dc power line D0 is connected to the power and control interface 1406 of the control circuit board 14 to supply power to the whole control circuit board 14, in addition, the processor 1401 on the control circuit board 14 is electrically connected to the heating switch control terminal, the heating switch control terminal is connected to the control terminal of the heating control relay of the power control module through the heating control line, the processor 1401 outputs the heating control signal to the instant drinking water heater 13, the heating control signal is connected to the control terminal of the heating control relay 1202 on the power control module 12 through the heating switch control terminal of the power and control interface 1406 and further through the heating control line D01, the input terminal of the heating control relay 1202 is an AC terminal 12B, and the output terminal is connected to the power supply terminal of the instantaneous drinking water heater 13, so as to control whether the AC terminal 12B is connected to or disconnected from the heating power line D02, while the other AC terminal 12A is directly and fixedly connected with the instantaneous drinking water heater 13.

Preferably, the drinking water instant heater 13 is provided with a temperature control switch 1302, the temperature control switch 1302 is arranged between the heating power line D02 and the ac terminal of the drinking water instant heater 13, since the temperature control switch 1302 is in a normally closed state, the drinking water instant heater 13 can be powered and heated after the ac terminal 12B and the heating power line D02 are controlled to be connected, but when the heating temperature is too high, the temperature control switch 1302 is automatically turned off, so that the heating power line D02 can be controlled to be disconnected from the ac terminal of the drinking water instant heater 13, and the power supply and heating are stopped, which is a temperature control protection function, and the temperature of the drinking water instant heater 13 is prevented from being too high.

Preferably, the instant drinking water heater 13 is provided with a temperature sensor for temperature monitoring, preferably a thermistor 1301, which is connected to the temperature monitoring interface 1403 of the control circuit board 14 through a fourth conducting wire D14, so that the processor 1401 on the control circuit board 14 can measure the thermistor value in real time, and when the measured thermistor value reflects that the heating temperature of the instant drinking water heater 13 is too high, the processor 1401 can control the heating control relay 1202 to be turned off through the heating switch control terminal of the power supply and control interface 1406, so as to cut off the power supply to the instant drinking water heater 13, thereby reducing the heating temperature.

Preferably, when the instant drinking water heater 13 is powered on to work, the temperature sensor detects the heating temperature of the instant drinking water heater 13 and transmits the detected temperature value to the processor 1401 through the fourth conducting wire D14 and the temperature monitoring interface 1403, and when the detected temperature value exceeds a preset safety value range, the processor 1401 outputs a control signal to control the heating control relay 1202 to disconnect the power supply end of the instant drinking water heater 13 from the alternating current electric terminal 12B through the heating switch control terminal and the heating control line; when the detected temperature value returns to the preset safety value range, the processor 1401 outputs a control signal to control the heating control relay 1202 to connect the power supply end of the drinking water instant heater 13 with the ac power terminal 12B through the heating switch control terminal and the heating control line.

Fig. 4 is a schematic composition diagram of a second embodiment of the instant heating water dispenser of the present invention. The embodiment is a further improvement on the embodiment shown in fig. 1, and the same parts are not described again, wherein the embodiment of the water dispenser further comprises a drinking water containing box 21.

As shown in fig. 4, a drinking water containing box 21 is arranged below the water bucket placing opening 111, the drinking water containing box 21 is connected with a heater water inlet pipe S11, a drinking water monitoring sensor 211 is arranged in the drinking water containing box 21, the drinking water monitoring sensor 211 is electrically connected with the control circuit board 14 through a first lead wire D11, and preferably, the first lead wire D11 is connected to a water shortage monitoring interface 1402 of the control circuit board 14; the waterway channel comprises a heater water inlet pipe S11 and a heater water outlet pipe S12, the heater water inlet pipe S11 is connected to the inlet of the instant drinking water heater 13, and the outlet of the instant drinking water heater 13 is connected to the drinking water outlet 112 through the heater water outlet pipe S12.

Preferably, the drinking water containing box 21 and the water bucket placing opening 111 are fastened by movable connecting devices such as screws or buckles, so as to form a closed placing opening, and a rubber pad is arranged at the interface to prevent water leakage. The side surface or the bottom of the drinking water containing box 21 is provided with a water outlet, the bottom of the drinking water containing box 21 is also provided with a drinking water monitoring sensor 211, and the drinking water monitoring sensor 211 is used for monitoring whether the drinking water in the water barrel 10 runs out. When placing mouthful 111 with bucket 10 inversion installation on the bucket, drinking water can only flow from its box delivery port that holds behind drinking water holding box 21, and drinking water holding box 21's basal area and bucket are placed mouthful 111 opening size and are close, and drinking water holding box 21's degree of depth is also more shallow, can utilize a small amount of water to provide higher water level, improves the measuring accuracy of box interior drinking water monitoring sensor 211.

Preferably, when the drinking water monitoring sensor 211 monitors that the amount of water in the drinking water containing box 21 is insufficient, the monitoring signal of insufficient water is transmitted to the processor 1401 through the first wire D11 and the water shortage monitoring interface 1402 on the control circuit board 14, the processor 1401 correspondingly converts the monitoring signal into a water shortage request signal, and the water shortage request signal is transmitted to a drinking water supplier through the wireless communication module 1413 to prompt the drinking water supplier to increase water supply.

Preferably, the drinking water monitoring sensor 211 is a float switch, as shown in fig. 5, the float switch includes a float 2111, a magnetic reed switch 2112 and a support post 2113, and the float 2111 floats in the axial direction of the support post 2113 and cannot be separated from the support post 2113. The float switch is arranged at the bottom of the drinking water containing box 21, a first conducting wire D11 is arranged outside the drinking water containing box 21, the conducting wire D11 can be a twisted pair composed of two wires, and is respectively connected with two ends of the magnetic reed switch 2112 and electrically connected with the control circuit board 14. When the water quantity in the water barrel 10 is sufficient, the water level in the drinking water containing box 21 is high, the buoy 2111 floats upwards, the magnetic reed switch 2112 is switched on, and the current water quantity is sufficient; when the water quantity in the water bucket 10 is insufficient, the water level in the drinking water containing box 21 is not low enough to support the buoy 2111 to float up to the on position of the magnetic reed switch 2112, so that the magnetic reed switch 2112 is turned off, and the current water quantity is insufficient or exhausted. The control circuit board 14 judges the on-off state of the float switch through the first wire D11 to know whether the water in the water bucket is used up, and further determines whether to turn off the heating function, give out a water shortage alarm, and the like.

Preferably, the power control module 12 is further provided with a buzzer, the alarm signal control terminal of the control circuit board 14 is electrically connected to the buzzer of the power control module 12 through a wire, and the alarm signal is sent to the power control module 12 through the wire and can control the buzzer to generate an alarm sound. In practical application, when the water amount in the water tank 10 is insufficient, the control circuit board 14 monitors the disconnection of the magnetic reed switch 2112 through the first lead D11, and then the heating switch control terminal in the control circuit board 14 controls the instant drinking water heater to stop heating through the power supply and control interface 1406 of the control circuit board, and the alarm signal control terminal controls the buzzer on the power supply control module 12 to give out a prompt sound as a water shortage alarm of the water dispenser.

Through the above description, the drinking water containing box 21 is provided at the water bucket placing opening 111, and the drinking water monitoring sensor is provided in the drinking water containing box 21, through which it is possible to monitor whether the drinking water in the water bucket 10 is used up or not, and the control circuit board 14. In addition, the control circuit board 14 can turn off the instant drinking water heater when water is short of the water quantity information, and send out a water shortage alarm of the water dispenser to prompt a user to check the service condition of the water dispenser, so that the use safety guarantee of the water dispenser is provided for the user.

Fig. 6 is a schematic view of a third embodiment of the instant heating water dispenser of the invention. The embodiment is a further improvement on the embodiment shown in fig. 4, and the description of the same parts is omitted, wherein the embodiment of the water dispenser further includes a flow monitoring sensor 22 and a first output water pipe S13.

As shown in fig. 6, a drinking water containing box 21 is arranged below the water bucket placing opening 111, the drinking water containing box 21 is connected with a first output water pipe S13, a drinking water monitoring sensor 211 is arranged in the drinking water containing box 21, and the drinking water monitoring sensor 211 is electrically connected with the control circuit board 14 through a first lead wire D11; the first output water pipe S13 is connected to the inlet of the flow monitoring sensor 22, the flow monitoring sensor 22 is electrically connected with the control circuit board 14 through a second lead D12, and the outlet of the flow monitoring sensor 22 is connected with the heater water inlet pipe S11; the water inlet pipe S11 of the heater is connected to the inlet of the instant drinking water heater 13, and the outlet of the instant drinking water heater 13 is connected to the drinking water outlet 112 through the water outlet pipe S12 of the heater.

The flow rate monitoring sensor 22 is arranged between the drinking water containing box 21 and the instant drinking water heater 13, one end of the flow rate monitoring sensor is communicated with the drinking water containing box 21 through a first output water pipe S13, and the other end of the flow rate monitoring sensor is communicated with the instant drinking water heater 13 through a heater water inlet pipe S11. The flow monitoring sensor 22 is also provided with a second conductor D12 electrically connected to the flow monitoring interface 1405 of the control circuit board 14.

It can be seen that the flow rate monitoring sensor 22 is connected in series between the first outlet water pipe S13 and the heater inlet water pipe S11 in the water passage, so that the amount of water flowing through the flow rate monitoring sensor 22 can be measured. The metering can be used for metering the water flowing through the water meter at one time or cumulatively metering the water flowing through the water meter for multiple times. When the total amount of water in the water tub 10 is determined, the usage of a tub of water, including the used amount of water and the remaining amount of water in the tub, can also be judged by the cumulative measurement of the flow rate monitoring sensor 22.

Preferably, the flow monitoring sensor 22 monitors the flow of water flowing through, and transmits a water flow signal to the processor 1401 through the second wire D12 and the flow monitoring interface 1405 on the control circuit board 14, and the processor 1401 accumulates and calculates the water flow signal to obtain the water consumption, and when the accumulated water consumption is close to the full water capacity of the water bucket, the processor 1401 correspondingly generates a water shortage request signal, and then transmits the water shortage request signal to the drinking water supplier through the wireless communication module 1413 to prompt the drinking water supplier to increase the water supply.

Preferably, the display screen of the control circuit board 14 includes a display nixie tube for displaying the water output, for example, the display nixie tube displays the water output through a digital display word, and the display value is measured by the flow monitoring sensor through the processor on the control circuit board.

The control circuit board 14 includes a water volume selection key and a flow rate monitoring interface, and the flow rate monitoring interface is electrically connected with the flow rate monitoring sensor through a second lead D12. The water quantity selection key is used for switching and selecting the water yield of single water receiving, and the values which can be displayed by the water yield display nixie tube comprise 15, 26 and 40, the unit is 10mL (milliliter), namely 150mL, 260mL and 400 mL; after the water yield is selected, a start stop key on the control panel is clicked, the water dispenser automatically closes a drinking water outlet after water with the set water yield flows out through the flow monitoring sensor, and if a user needs to finish receiving water before the quantitative water flow is finished, the user touches the start stop key again. The operation of selecting the water amount is performed once according to the needs of the user.

Through setting up flow monitoring sensor, the user can obtain quantitative drinking water to be suitable for more water receiving containers, for example disposable paper cup, 400mL thermos cup etc. and do not need artificial intervention to finish the time of water outlet, realize water receiving process automation, accuracy, it is more convenient to make the user's water receiving.

Fig. 7 is a schematic view of a fourth embodiment of the instant heating water dispenser of the invention. The embodiment is a further improvement on the embodiment shown in fig. 6, and the description of the same parts is omitted, wherein the embodiment of the water dispenser further includes a water pump 23 and a second water outlet pipe S14. In addition, in comparison with fig. 6, the drinking water instantaneous heater 13 in fig. 7 has an inlet at a lower portion thereof and an outlet at an upper portion thereof. The shell structure of the water dispenser is changed from a top-bottom integrated type to a left-right integrated type. Here, the vertically integrated type mainly means that the whole of the housing structure of the water dispenser shown in fig. 1 is a cuboid, the water tub is disposed on the upper portion of the housing structure, while the horizontally integrated type is shown in fig. 7, the water dispenser housing structure is integrally composed of a left housing L11 and a right housing R11 which are internally communicated, wherein the water tub placing opening 111 is disposed on the upper portion of the left housing L11, the drinking water outlet 112 is disposed on the right housing R11, and the drinking water outlet 112 is higher than the water tub placing opening 111.

Here, the water pump 23 is disposed between the flow rate monitoring sensor 22 and the drinking water instant heater 13, a drinking water containing box 21 is disposed below the water tub placing port 111, the drinking water containing box 21 is connected with the first output water pipe S13, and a drinking water monitoring sensor 211 is disposed in the drinking water containing box 21, the drinking water monitoring sensor 211 is electrically connected with the control circuit board 14 through a first wire D11; the first output water pipe S13 is connected to the inlet of the flow monitoring sensor 22, the flow monitoring sensor 22 is electrically connected with the control circuit board 14 through a second lead D12, and the outlet of the flow monitoring sensor 22 is connected with the second output water pipe S14; the second output water pipe S14 is connected to the inlet of the water pump 23, the outlet of the water pump 23 is connected with the heater water inlet pipe S11, the control terminal of the water pump 23 is connected with the power supply control module 12 and is controlled by the control circuit board 14; the water inlet pipe S14 of the heater is connected to the inlet of the instant drinking water heater 13, and the outlet of the instant drinking water heater 13 is connected to the drinking water outlet 112 through the water outlet pipe S12 of the heater.

The end of intaking of water pump 23 passes through second output water pipe S14 intercommunication flow monitoring sensor 22, and the play water end passes through heater inlet tube S11 intercommunication drinking water instant heating ware 13 to flow monitoring sensor 22 avoids directly linking to each other with drinking water instant heating ware 13 place water route with the help of the isolation of water pump 23, reduces the flow measurement error that causes because of the expend with heat and contract with cold when the temperature changes.

On the basis of fig. 3, how the power control module 12 and the control circuit board 14 interact to control the outlet water flow of the water pump 23 is further described below with reference to fig. 8. In fig. 8, the power control module 12 is externally connected to two ac terminals 12A and 12B of ac power, converts the input ac power into dc power through the rectifier transformer 1201, and supplies the dc power to the control circuit board 14 through the dc power line D0. In addition, the rectification transformation circuit 1201 also outputs another branch direct current to the input end of the thyristor 1203. Here, the dc power line D0 is connected to the power supply and control interface 1406 of the control circuit board 14 to supply power to the entire control circuit board 14, and the processor 1401 on the control circuit board 14 outputs a power control signal to the water pump 23, the power control signal is connected to the control terminal of the thyristor 1203 on the power control module 12 through the power control line D05 via the motor output power control terminal of the power supply and control interface 1406, and the output terminal of the thyristor 1203 is electrically connected to the control terminal of the water pump 23 through the power output line D06.

Further, for the water pump 23, the output power of the water pump 23 is determined by a signal of a control end of the water pump 23, and the signal of the control end of the water pump 23 is a Pulse Width Modulation (PWM) signal, and the output power can be adjusted by adjusting a duty ratio of the signal, and generally, the output power is higher as the duty ratio is larger. Therefore, when the power control signal from the power control line D05 is applied to the control end of the thyristor 1203, the thyristor 1203 can be turned on or off, so that a direct current output by the rectifying and transforming circuit 1201 is applied to the control end of the water pump 23 through the thyristor 1203 in the form of a PWM signal, and the duty ratio of the PWM signal is controlled by the power control signal from the processor 1401 on the control circuit board 14, so that the duty ratio of the PWM signal input to the control end of the water pump 23 can be controlled by changing the duty ratio of the power control signal output by the processor 1401, and the adjustment control of the output power of the water pump 23 can be realized.

Further, according to the above, when the heating output power of the instantaneous drinking water heater 13 is the same, the water flow rate entering the instantaneous drinking water heater 13 can be changed by controlling the power of the water pump 23, so as to control the outflow of drinking water with different water temperatures. This is because, when the heating power of the instantaneous drinking water heater 13 is the same, the water temperature is lower as the water flow rate is larger, and the water temperature is higher as the water flow rate is smaller, thereby controlling the temperature of the discharged water by the water flow rate. The instant drinking water heater 13 also comprises a temperature sensor which comprises a thermistor and is arranged at the same horizontal position with the outlet, and because the distance between the outlet and the water delivery port 112 of the water dispenser is close, the heat loss is less in the water delivery process, and the water temperature is more accurately measured.

The display screen of the control panel 113 further includes an outlet temperature display window, which displays the temperature through digital display words, and the display value is obtained by processing the data measured by the temperature sensor by the processor 1401. The control circuit board 14 further comprises a child lock key, a temperature selection key and a temperature monitoring interface 1403, and a fourth wire D14 is arranged on the temperature sensor on the drinking water instantaneous heater 13 and electrically connected with the temperature monitoring interface 1403 of the control circuit board 14. The child lock key is used for locking other keys, so that water use parameter change and hot water scald caused by mistaken touch are avoided, and the temperature selection key is used for switching the water outlet temperature which comprises 45 degrees, 60 degrees, 85 degrees and 98 degrees, and the unit is ℃.

Preferably, before the drinking water instant heater 13 starts heating, the drinking water is firstly injected into the heating cavity of the drinking water instant heater 13 through the water pump 23, the duration is usually less than one second, and then the heating is started, thereby ensuring that the heating cavity is not burnt.

In addition, the terminals of the power control module 12, the drinking water instant heater 13 and the control circuit board 14 are all sleeved with high-temperature resistant insulating sleeves, and the sealing plate of the heating cavity is also electrically connected with a grounding wire in a power connecting wire to prevent the terminals from being touched by mistake to generate short circuit.

The heating process of the drinking water instant heater 13 is also controlled by the power control module 12 and the control circuit board 14. When the control circuit board 14 detects that the water amount in the water bucket 10 is insufficient, a heater power-off signal is sent to the power control module 12, the heating function is turned off, and the water shortage protection effect is realized; when the control circuit board 14 detects that the temperature of the heating chamber is too high, a heater power-off signal is sent to the power control module 12.

Under the condition that the temperature of the instant drinking water heater can be monitored, the water outlet temperature can be controlled more accurately by using the water pump. When a user uses the water dispenser to receive water, the processor in the control circuit board controls the effective working time of the water pump 23 in unit time in a pulse width modulation mode, and further adjusts the water inlet flow rate of the instant drinking water heater 13. The specific control mode is that the flow information and the temperature information acquired by the current flow monitoring interface and the temperature monitoring interface are read, the matching calculation is carried out according to the heating power of the drinking water instant heater, and the output power of the water pump is controlled, so that the outlet water temperature can be accurately controlled.

Under the condition that the power of the instant drinking water heater 13 is limited and constant, when a user needs drinking water at 98 ℃, the output power of the water pump 23 can be reduced, so that the water inlet speed is reduced, the water flow speed in the instant drinking water heater 13 is slowed down, enough heating time is obtained, and the temperature requirement of the user is finally met; similarly, when the user needs 45 ℃ drinking water, the water temperature is lower, the output power of the water pump 23 can be increased, the heating time in the drinking water instant heater 13 is reduced, and the temperature requirement of the user is finally met.

Through the setting, the user can be through setting up out water temperature and water yield to obtain the drinking water of ration, level temperature, and compare in other embodiments, through the direct water supply of water pump, make the flow in the water route accurate controllable, corresponding heating process is also more stable thereupon.

Fig. 9 is a schematic view of a fifth embodiment of the instant heating water dispenser of the invention. The embodiment is a further improvement on the embodiment shown in fig. 7, and the description of the same parts is omitted, wherein the embodiment of the water dispenser further includes a three-way connector 24, a water quality detection sensor 25, and a third output water pipe S15.

The embodiment also comprises a water dispenser shell 11, wherein the water dispenser shell 11 is provided with a water barrel placing opening 111, a drinking water output opening 112 and a control panel 113, a power supply control module 12 is arranged inside the water dispenser shell 11, a control circuit board 14 is arranged inside the water dispenser shell 11 and corresponds to the control panel 113, and the power supply control module 12 supplies power to the control circuit board 14.

Further, a drinking water containing box 21 is arranged below the water bucket placing opening 111, the drinking water containing box 21 is connected with a first output water pipe S13, a drinking water monitoring sensor 211 is arranged in the drinking water containing box 21, and the drinking water monitoring sensor 211 is electrically connected with the control circuit board 14 through a first lead D11; the first output water pipe S13 is connected to the inlet of the flow monitoring sensor 22, the flow monitoring sensor 22 is electrically connected with the control circuit board 14 through a second lead D12, and the outlet of the flow monitoring sensor 22 is connected with the second output water pipe S14; the second output water pipe S14 is connected to the inlet of the water pump 23, the outlet of the water pump 23 is connected to the third output water pipe S15, the control terminal of the water pump is connected to the power control module 12 and is controlled by the control circuit board 14; the third output water pipe S15 is connected in series to the first interface of a three-way connecting piece 24, the second interface of the three-way connecting piece 24 is connected to the water quality detection sensor 25, the water quality detection sensor 25 is electrically connected with the control circuit board 14 through a third lead D13, and the third interface of the three-way connecting piece 24 is connected with the heater water inlet pipe S11; the water inlet pipe S11 of the heater is connected to the inlet of the instant drinking water heater 13, and the outlet of the instant drinking water heater 13 is connected to the drinking water outlet 112 through the water outlet pipe S12 of the heater.

The control panel 113 sets the outlet temperature of the drinking water, and when the drinking water flows through the instant drinking water heater 13, the control circuit board 14 controls the instant drinking water heater 13 to heat according to the set temperature value. In addition, the control circuit board 14 is further provided with a wireless communication module 1413, and the wireless communication module is used for transmitting the water consumption data collected by the control circuit board. Preferably, the control circuit board 14 further includes a water quality detection interface 1404, and is electrically connected to the water quality detection sensor 25 through the water quality detection interface 1404 and a third wire D13. When the water quality in the waterway does not conform to the preset water quality range in the processor 1401, the buzzer in the power control module 12 can send out a water dispenser alarm. After the alarm sound of the buzzer is sent out for two minutes, if the water quality in the water channel is still unqualified, the control panel stops working, all keys can not be clicked, a user needs to cut off the power and replace a water source, a start stop key is clicked, and water is continuously discharged until the water dispenser works normally.

Preferably, when the water quality detection sensor 25 detects that the water quality of the drinking water does not reach the standard, the detection data that the water quality does not reach the standard is transmitted to the processor 1401 through the third conducting wire D13 and the water quality detection interface 1404 on the control circuit board 14, the processor 1401 correspondingly converts the signal that the water quality does not reach the standard into a signal that the water quality does not reach the standard, and the signal that the water quality does not reach the standard is transmitted to the drinking water supplier through the wireless communication module, so that the drinking water supplier is prompted to replace.

Through setting up water quality detector, guarantee on the one hand that the water source quality of water dispenser is qualified, when guaranteeing user's drinking water safety, also avoid poor quality drinking water heating in-process to produce the incrustation scale, reduce the life of instant heater of drinking water, damage circuit assembly.

Preferably, the control circuit board 14 further includes a wireless communication module 1413, specifically an internet of things card providing network communication function by mobile, internet or telecommunication, and the wireless communication module is configured to transmit the sensing data collected by the control circuit board to the user communication terminal, where the sensing data includes water temperature, water consumption, residual water amount, replacement frequency of water bucket, and the like. On the basis of wireless communication, the water dispenser also has a one-key water changing function, a water changing request can be sent to a drinking water operator by pressing a water quantity selection key for five seconds in a non-child-lock state, the drinking water operator provides a door-to-door water changing service, and the labor and time investment of a user in a water changing process is reduced.

Based on the same conception of the instant heating water dispenser, a preferred embodiment of the instant heating method for the drinking water is also provided.

In this embodiment, the barreled drinking water is heated by a water dispenser including a water dispenser housing provided with a water barrel placing opening, a drinking water outlet and a control panel. As shown in fig. 10, the method comprises the steps of:

step S101: the method comprises the steps of setting parameters, wherein a control panel is correspondingly provided with a control circuit board, setting a preset temperature value of flowing-out drinking water through a temperature selection key on the control panel, and displaying the preset temperature value through a display window on the control panel.

Step S102: starting water outlet, pressing a start stop key on the control panel for the first time, and enabling the drinking water in the water barrel to flow into a waterway channel of the water dispenser.

Step S103: the flow heating is provided with the instant heater of drinking water on the waterway channel, works as the drinking water flows through when the instant heater of drinking water, the instant heater of drinking water is in to flowing through under control circuit board's the effect the drinking water carries out heating control, works as the drinking water is followed can obtain the temperature value when the drinking water delivery outlet flows out with the drinking water that the temperature value is the same predetermines.

Further preferably, a temperature sensor is arranged on the instant drinking water heater, and the temperature sensor monitors the temperature of the instant drinking water heater in real time and transmits the monitored temperature value to the control circuit board. Therefore, in the flow heating S103, a corresponding relationship is established between the temperature value of the drinking water instant heater monitored by the temperature sensor and the temperature value of the drinking water flowing out of the drinking water outlet, and according to the corresponding relationship, the temperature value of the drinking water flowing out of the drinking water outlet can be obtained by monitoring the temperature value of the drinking water instant heater. The corresponding relation refers to the difference relation between the temperature value of the instant drinking water heater and the temperature value of the drinking water, and the temperature sensor is arranged on the outer surface of the instant drinking water heater, the drinking water flows through the heating cavity in the instant drinking water heater, the temperatures of the two are not equal, in practical application, the corresponding relation can be detected through multiple measurements, so that a corresponding data table is established in the memory, and the temperature value of the water temperature can be inquired through the corresponding relation data table after the temperature value of the temperature sensor is monitored.

Further, after the step S103 of heating by flowing, a step S104 is further included: and finishing water outlet, pressing a start stop key on the control panel for the second time, stopping water outlet of the drinking water outlet, and stopping heating of the instant drinking water heater.

For the embodiment of the instant heating method for drinking water shown in fig. 10, which corresponds to the embodiment of the instant heating water dispenser shown in fig. 1 to 3, the same idea is included, and related contents can be referred to the description of the embodiment shown in fig. 1 to 3, and are not repeated herein.

With reference to the embodiments shown in fig. 4 and 5, based on the same concept, in another embodiment of the instant drinking water heating method, a drinking water containing box is arranged below the water bucket placing opening, and a drinking water monitoring sensor is arranged in the drinking water containing box and is electrically connected with the control circuit board. Therefore, in the step S102 of starting water outlet shown in fig. 10, the drinking water monitoring sensor may be further included to monitor the residual amount of drinking water in the water bucket, when the water shortage is monitored in the water bucket, the control circuit board obtains a water shortage signal through the drinking water monitoring sensor, and the control circuit board sends out a water shortage alarm and does not enter the step S103 of flowing and heating any more. That is to say, when detecting the lack of water, no longer heating, otherwise can appear dry combustion method, this is a protection to the water dispenser, has improved the security.

Preferably, the control circuit board is further provided with a wireless communication module, and the water shortage signal is sent to a drinking water supplier through the wireless communication module to prompt the drinking water supplier to increase water supply. Therefore, the water shortage information can be automatically transmitted to a drinking water supplier in a wireless communication mode after the water dispenser finds that water is short, the water shortage reminding function is added, and a user has better use experience.

With reference to the embodiment shown in fig. 6, based on the same concept, in another embodiment of the instant drinking water heating method, a flow rate monitoring sensor is disposed on a water channel between the drinking water containing box and the instant drinking water heater, and the flow rate monitoring sensor is electrically connected to the control circuit board. Therefore, the step S101 of setting parameters further includes setting a preset effluent value of the drinking water through a water quantity selection key on the control panel, and displaying the preset effluent value through a display window on the control panel. The step S103 of heating by flowing further includes that the flow monitoring sensor monitors the flow of the flowing drinking water, the monitored flow data is transmitted to the control circuit board, the control circuit board performs cumulative calculation on the flowing drinking water according to the flow data, and when the cumulative calculated amount of drinking water is equal to the preset water outlet amount value, the control circuit board controls the instant drinking water heater to stop heating, and the drinking water outlet stops water outlet.

It can be seen that according to this embodiment, can realize the setting to drinking water outlet volume to when the water yield accords with the setting value, can the automatic shutdown play water, guaranteed like this that the temperature can be established, the water yield can be established, have better intellectuality.

With reference to the embodiments shown in fig. 7 and 8, based on the same concept, in another embodiment of the instant drinking water heating method, a water pump for controlling the flow of the drinking water in the water passage is disposed on the water passage between the flow monitoring sensor and the instant drinking water heater, the output power of the water pump is controlled by the control circuit board, and the step S103 of heating the flowing water further includes controlling the flow of the drinking water flowing through the instant drinking water heater by the water pump.

Preferably, the method for controlling the flow of the drinking water flowing through the drinking water instant heater by the water pump is that the output power of the water pump is determined according to the preset water outlet amount and the preset temperature value, so as to control the flow of the drinking water flowing through the drinking water instant heater.

Here, after the preset water outlet amount and the preset temperature value are set, the control circuit board may set the flow rate according to the situation, for example, when the set temperature is higher, such as 80 degrees water temperature, and the water outlet amount is more required, such as 400ml, at this time, under the condition that the heating power of the instant drinking water heater is certain, the output power of the water pump is controlled to be lower, so that the flow rate flowing through the instant drinking water heater is smaller, the time flowing through the instant drinking water heater is longer, and the obtained heating duration is correspondingly increased. For another example, when the set temperature is lower, such as 40 degrees water temperature, and the water outlet amount is more, such as 400ml, under the condition that the heating power of the instant drinking water heater is constant, the output power of the water pump is controlled to be higher than that of the former case, so that the flow passing through the instant drinking water heater is larger, the time of the instant drinking water heater is shorter, and the obtained heating time is correspondingly reduced. The corresponding relations can be calculated through product tests, and the optimized result value is stored, so that when a user selects different water outlet temperatures and water outlet amounts, the output flow can be rapidly controlled. According to the foregoing fig. 7 and 8 and the description of the embodiment of fig. 3, the heating of the instant drinking water heater can be further controlled, for example, the heating process is controlled by changing continuous heating to intermittent heating. Or further comprehensively optimizing temperature monitoring, heating control and flow control, so that the heating and flow control have a frequency conversion function, the power consumption is further reduced, the efficiency is improved, and the cost is saved.

With reference to the embodiment shown in fig. 9, based on the same concept, a water quality detection sensor is disposed on the water passage between the water pump and the drinking water instant heater, the water quality detection sensor is electrically connected to the control circuit board, the step S103 of flowing and heating further includes detecting the water quality of the drinking water flowing through by the water quality detection sensor, and when a signal indicating that the water quality does not reach the standard is detected, the control circuit board controls the drinking water instant heater to stop heating, and the drinking water outlet stops water outlet. Therefore, the quality monitoring of the water quality is further enhanced, and the safety of water utilization is improved.

Preferably, the control circuit board is further provided with a wireless communication module, and the signal indicating that the water quality does not reach the standard is sent to a drinking water supplier through the wireless communication module to prompt the drinking water supplier to supply water again.

According to the embodiment, the instant heating water dispenser is characterized in that the instant heating water dispenser is provided with the instant drinking water heater in the shell of the water dispenser, the water containing box containing the float switch is arranged at the water barrel placing opening, the water outlet pipe of the water containing box is communicated with the flow monitoring sensor, the other end of the flow monitoring sensor is communicated with the water pump, the water pump is also communicated with the instant drinking water heater, and the water outlet pipe of the instant drinking water heater is communicated with the drinking water outlet, so that a complete drinking water flowing channel is formed. When a user uses the water dispenser to receive water, the water consumption and the water temperature are selected, and the start stop key can be directly clicked to wait for the water outlet of the water dispenser; meanwhile, the drinking water detector detects whether the drinking water containing box is lack of water, and under the condition that the water quantity is sufficient, the control panel reads the current flow data, the water temperature and the water consumption, so that the running power of the water pump is adjusted, the flow rate of the drinking water is matched with the power of the drinking water instant heater, and enough heating time is obtained in the heating cavity of the water pump; after the operating power of the water pump is calculated, whether the current water quality is qualified can be judged, whether the water pump is heated can be determined, and the data transmitted by the judgment is processed by a processor of the control circuit board 14 according to the detection data of the control circuit board 14 on the water quality. Under the condition of ensuring sufficient water quantity and qualified water quality, the water pump starts to supply water, the instant drinking water heater heats water, and the heating temperature can be preset. Therefore, the whole heating process is only heated once, the water quantity and the water quality can be detected, the use safety and the drinking safety of a user are guaranteed, the quantitative and constant-temperature water supply functions are further provided in the use of the water dispenser, and the one-key water change is realized by combining the Internet of things card, so that the user can drink water more conveniently.

The present invention is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or any other related technical fields, are also included in the scope of the present invention.

Claims (5)

1. An instant heating water dispenser, which comprises a water dispenser shell, wherein the water dispenser shell is provided with a water barrel placing opening, a drinking water output opening and a control panel, and a power supply control module is arranged inside the water dispenser shell,

a drinking water instant heater is arranged on a waterway channel which is connected with the water bucket placing opening and the drinking water outlet opening in the shell of the water dispenser, a control circuit board is arranged corresponding to the control panel, the power supply control module supplies power to the control circuit board, the control panel sets the water outlet temperature of the drinking water, and when the drinking water flows through the drinking water instant heater, the control circuit board controls the heating of the drinking water instant heater according to the set temperature value;

a drinking water containing box is arranged below the water barrel placing opening, a drinking water monitoring sensor is arranged in the drinking water containing box, and the drinking water monitoring sensor is electrically connected with the control circuit board through a first lead; the drinking water monitoring sensor is a float switch, the float switch comprises a float, a magnetic reed switch and a support column, the float is sleeved on the support column and floats upwards in the axial direction and cannot be separated from the support column, the float switch is arranged at the bottom of the drinking water containing box, a first lead is a twisted pair consisting of two wires, the twisted pair is respectively connected with two ends of the magnetic reed switch and is electrically connected with the control circuit board, when the water amount in the water bucket is sufficient, the drinking water containing box has a high water level, the float floats upwards to enable the magnetic reed switch to be connected, and the current water amount is sufficient; when the water quantity in the water barrel is insufficient, the water level in the drinking water containing box is low and is not enough to support the buoy to float to the on position of the magnetic reed switch, so that the magnetic reed switch is switched off, the current water quantity is insufficient or exhausted, the control circuit board judges the switching state of the floating ball switch through the first lead to know whether the water in the water barrel is used up or not, and then whether the heating function is turned off or not is determined, and a water shortage alarm is sent out;

the drinking water containing box is connected with a first output water pipe, the first output water pipe is connected to an inlet of a flow monitoring sensor, the flow monitoring sensor is electrically connected with the control circuit board through a second lead, and an outlet of the flow monitoring sensor is connected with a second output water pipe; the second output water pipe is connected to an inlet of the water pump, an outlet of the water pump is connected with a water inlet pipe of the heater, and a control wiring terminal of the water pump is connected with the power supply control module and is controlled by the control circuit board; the water inlet pipe of the heater is connected to the inlet of the instant drinking water heater, and the outlet of the instant drinking water heater is connected with the drinking water outlet through the water outlet pipe of the heater;

the temperature sensor is arranged close to the outer surface of the instant drinking water heater and electrically connected with the control circuit board through a fourth lead, the temperature sensor monitors the temperature of the instant drinking water heater in real time and transmits the monitored temperature value to the control circuit board, a corresponding relation is established between the temperature value of the instant drinking water heater monitored by the temperature sensor and the temperature value of the drinking water flowing out of the drinking water outlet, the temperature value of the drinking water flowing out of the drinking water outlet can be obtained by monitoring the temperature value of the instant drinking water heater according to the corresponding relation, and the temperature sensor comprises a thermistor and is arranged at the same horizontal position with the outlet of the instant drinking water heater; the drinking water monitoring sensor detects whether the drinking water containing box is lack of water or not, under the condition that the water quantity is sufficient, the control panel reads current flow data, water temperature and water consumption, and the water flow entering the drinking water instant heater is changed by controlling the power of the water pump, so that the drinking water with different water temperatures flows out, and quantitative and constant-temperature drinking water is obtained;

the drinking water instant heater is of a flat structure and comprises a sealing plate and a heating plate which are made of metal materials and are welded along the periphery in a seamless mode, a heating cavity for water to flow is arranged between the sealing plate and the heating plate, the heating cavity is provided with an inlet for inflow of drinking water and an outlet for outflow of the drinking water, the inlet is arranged at the lower portion of the heating cavity, the outlet is arranged at the upper portion of the heating cavity, and the drinking water flows through the inside of the drinking water instant heater in a pressurizing mode; the sealing plate is provided with a plurality of depressions facing the heating cavity for changing the flow direction of the drinking water in the heating cavity; the heating plate comprises a substrate, a heating wire arranged on the substrate and a high-temperature-resistant insulating layer covering the heating wire; the heating wires are planar wires and are distributed and attached to the substrate in a roundabout and curved shape; a temperature control switch is connected in series with an alternating current terminal of the instant drinking water heater and is arranged on a substrate of the heating plate, so that the temperature on the substrate is sensed, and when the heating temperature is too high, the temperature control switch is automatically switched off.

2. The instant heating water dispenser of claim 1, wherein the outlet of the water pump is connected to a third outlet pipe, the third outlet pipe is connected in series to a first interface of a three-way connector, a second interface of the three-way connector is connected to a water quality detection sensor, the water quality detection sensor is electrically connected to the control circuit board through a third wire, and a third interface of the three-way connector is connected to a heater water inlet pipe; the water inlet pipe of the heater is connected to the inlet of the instant drinking water heater, and the outlet of the instant drinking water heater is connected with the drinking water outlet through the water outlet pipe of the heater.

3. The instant heating water dispenser of claim 2, wherein the heater inlet pipe and the heater outlet pipe are both sleeved with springs along the extension direction of the water pipe for preventing the water pipe from folding and stopping due to bending.

4. The instant heating water dispenser of claim 3, wherein the control circuit board is provided with a wireless communication module for transmitting water usage data collected by the control circuit board.

5. The instant heating water dispenser of claim 4, wherein the control panel comprises an operation key and a display window, the operation key comprises a start stop key, a water volume selection key, a temperature selection key and/or a child lock key, the control circuit board is provided with a display screen, and the display window is matched with the display screen.

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