CN106235882B - Water dispenser and temperature display device thereof - Google Patents
Water dispenser and temperature display device thereof Download PDFInfo
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- CN106235882B CN106235882B CN201610872066.9A CN201610872066A CN106235882B CN 106235882 B CN106235882 B CN 106235882B CN 201610872066 A CN201610872066 A CN 201610872066A CN 106235882 B CN106235882 B CN 106235882B
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- temperature
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- water dispenser
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/4403—Constructional details
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
- A47J31/462—Dispensing spouts, pumps, drain valves or like liquid transporting devices with an intermediate liquid storage tank
- A47J31/467—Dispensing spouts, pumps, drain valves or like liquid transporting devices with an intermediate liquid storage tank for the infusion
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a water dispenser and a temperature display device thereof, wherein the temperature display device comprises: the first temperature detection circuit is used for detecting the temperature of heating water in a hot tank of the water dispenser; the second temperature detection circuit is used for detecting the water outlet temperature of the water dispenser; the display unit is used for displaying the heating water temperature or the outlet water temperature; the main control unit is connected with the first temperature detection circuit through a first AD sampling end, a second AD sampling end of the main control unit is connected with the second temperature detection circuit, a display control end of the main control unit is connected with the display unit, the main control unit samples heating water temperature through the first AD sampling end and samples outlet water temperature through the second AD sampling end, and the display unit is controlled to switch and display the heating water temperature and the outlet water temperature. The device can switch and display the heating water temperature and the water outlet temperature of the water dispenser, so that the use experience of a user is improved, and the cost is lower.
Description
Technical Field
The invention relates to the technical field of water dispensers, in particular to a temperature display device of a water dispenser and the water dispenser.
Background
At present, with the gradual improvement of living standard, a plurality of public places are provided with water dispensers with large flux and heating function. For example, many schools install campus drinking water machines, which are machines dedicated to providing warm water to teachers and students in schools, and have high-temperature heating and heat exchange equipment inside.
Because school water dispenser users include low-age users such as pupils and the like, according to the principle of safety first, when the users normally use water, the water from the water outlet pipeline of the water dispenser is warm boiled water cooled by the heat exchanger, and the temperature is generally 30-40 ℃.
The campus water dispenser in the related art only has the capability of detecting and displaying the temperature of the heating water in the hot tank, but through market research and user feedback, users are more concerned about the temperature of the water discharged from the water dispenser.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, one objective of the present invention is to provide a temperature display device for a water dispenser, which can switch and display the heating water temperature and the outlet water temperature of the water dispenser, so as to improve the user experience and reduce the cost.
The invention also aims to provide a water dispenser.
In order to achieve the above object, an embodiment of the present invention provides a temperature display device for a water dispenser, including: the first temperature detection circuit is used for detecting the temperature of heating water in a hot tank of the water dispenser; the second temperature detection circuit is used for detecting the water outlet temperature of the water dispenser; the display unit is used for displaying the heating water temperature or the outlet water temperature; the main control unit is connected with the first temperature detection circuit through a first AD sampling end, is connected with the second temperature detection circuit through a second AD sampling end, is connected with the display unit through a display control end, and is used for sampling the heating water temperature and the water outlet temperature through the second AD sampling end and controlling the display unit to switch and display the heating water temperature and the water outlet temperature.
According to the temperature display device of the water dispenser, the first temperature detection unit is used for detecting the temperature of heating water in the hot tank of the water dispenser, the second temperature detection circuit is used for detecting the water outlet temperature of the water dispenser, the first AD sampling end of the main control unit is used for sampling the temperature of the heating water, the second AD sampling end is used for sampling the water outlet temperature, and the display unit is controlled to switch and display the heating water temperature and the water outlet temperature, so that the use experience of a user is improved, and the cost is low.
According to an embodiment of the present invention, the second temperature detection circuit includes: the temperature sensor is arranged in a water outlet pipeline of the water dispenser; one end of the first resistor is connected with a preset power supply; the connecting terminal is used for connecting the temperature sensor, a first pin of the connecting terminal is connected with the other end of the first resistor, and a second pin of the connecting terminal is grounded; the cathode of the first clamping diode is connected with the preset power supply, and the anode of the first clamping diode is respectively connected with the first pin of the wiring terminal and the other end of the first resistor; the anode of the second clamping diode is grounded, the cathode of the second clamping diode is connected with the anode of the first clamping diode, a first node is arranged between the cathode of the second clamping diode and the anode of the first clamping diode, and the first node is connected with the second AD sampling end through a second resistor.
According to an embodiment of the present invention, the second temperature detecting circuit further includes a filter capacitor, one end of the filter capacitor is connected to the second AD sampling terminal, and the other end of the filter capacitor is connected to the anode of the second clamping diode and then grounded.
According to one embodiment of the invention, the temperature sensor is made in the bullet head type.
According to an embodiment of the present invention, a three-way valve is disposed on the water outlet pipeline, a first end of the three-way valve is used for supplying water, a second end of the three-way valve is used for supplying water, and a third end of the three-way valve is used for installing the temperature sensor.
According to one embodiment of the invention, when the water dispenser is in a water outlet state, the main control unit controls the display unit to display the water outlet temperature; when the water dispenser is in a standby state, the main control unit controls the display unit to display the heating water temperature.
According to one embodiment of the invention, the display unit is a digital display screen.
In order to achieve the above purpose, another embodiment of the present invention provides a water dispenser, which includes the above temperature display device.
According to the water dispenser provided by the embodiment of the invention, the first temperature detection unit of the temperature display device of the water dispenser is used for detecting the heating water temperature in the hot tank of the water dispenser, the second temperature detection circuit is used for detecting the water outlet temperature of the water dispenser, the first AD sampling end of the main control unit is used for sampling the heating water temperature, the second AD sampling end is used for sampling the water outlet temperature, and the display unit is controlled to switch and display the heating water temperature and the water outlet temperature, so that the use experience of a user is improved, and the cost is lower.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which,
FIG. 1 is a block schematic diagram of a temperature display device of a water dispenser according to one embodiment of the present invention;
FIG. 2 is a circuit diagram of a second temperature sensing circuit according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of a temperature sensor according to one embodiment of the present invention; and
fig. 4 is a schematic diagram of a digital display screen according to one embodiment of the 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 reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The temperature display device of the water dispenser and the water dispenser provided by the embodiment of the invention are described below with reference to the attached drawings.
Fig. 1 is a block schematic diagram of a temperature display device of a water dispenser according to an embodiment of the present invention. As shown in fig. 1, the temperature display device includes: a first temperature detection circuit 10, a second temperature detection circuit 20, a display unit 30, and a main control unit 40.
The first temperature detecting unit 10 is used for detecting the temperature of the heating water in the hot tank of the water dispenser. The second temperature detection circuit 20 is used for detecting the water outlet temperature of the water dispenser. The display unit 30 is used for displaying the heating water temperature or the outlet water temperature. The first AD sampling end of the main control unit 40 is connected with the first temperature detection circuit 10, the second AD sampling end of the main control unit 40 is connected with the second temperature detection circuit 20, the display control end of the main control unit 40 is connected with the display unit 30, the main control unit 40 samples heating water temperature through the first AD sampling end and samples outlet water temperature through the second AD sampling end, and the display unit 30 is controlled to switch and display the heating water temperature and the outlet water temperature.
Further, according to an embodiment of the present invention, when the water dispenser is in a water-out state, the main control unit 40 controls the display unit 30 to display the temperature of water; when the water dispenser is in a standby state, the main control unit 40 controls the display unit 30 to display the heating water temperature.
Specifically, a State judgment Flag State _ Flag may be set in the main program of the main control unit 40 of the water dispenser, when the water dispenser is in a standby State or other non-water-out states, the State _ Flag is set to 0, and when the water dispenser is in a water-out State, the State _ Flag is set to 1, and the main control unit 40 may judge the operation State of the water dispenser according to the State of the State _ Flag.
When the water dispenser works, if the water dispenser is in a standby state or other non-water-outlet states, the first temperature detection unit 10 detects the heating water temperature in the hot tank of the water dispenser in real time, the main control unit 40 samples the heating water temperature through the first AD sampling end and converts the acquired analog signals into digital signals, and then the main control unit 40 controls the display unit 30 to display the heating water temperature in the hot tank of the water dispenser. When a user presses a water outlet button of the water dispenser or turns on a water outlet switch of the water dispenser, the water dispenser is in a water outlet state, a water pump and an electromagnetic valve of the water dispenser are opened, a water outlet pipeline is filled with water, at the moment, the second temperature detection circuit 20 detects the water outlet temperature of the water dispenser, the main control unit 40 samples the water outlet temperature in the water outlet pipeline through the second AD sampling end, and after converting the acquired analog signals into digital signals, the main control unit 40 controls the display unit 30 to display the water outlet temperature of the water dispenser.
Therefore, the device can display the heating water temperature in the hot tank of the water dispenser when the water dispenser is in a standby state or other non-water-outlet states, and display the water outlet temperature in the water outlet pipeline when the water dispenser is in a water-outlet state, so that better use experience is provided for users, and the cost is lower.
According to an embodiment of the present invention, as shown in fig. 2, the second temperature detection circuit 20 includes: temperature sensor 201, first resistance R1, binding post 30, first clamping diode D1, second clamping diode D2.
Wherein, the temperature sensor 201 is arranged in the water outlet pipeline of the water dispenser. One end of the first resistor R1 is connected to a predetermined power supply Vcc. The connection terminal 30 is used to connect the temperature sensor 201, wherein a first pin 301 of the connection terminal 30 is connected to the other end of the first resistor R1, and a second pin 302 of the connection terminal 30 is grounded. The cathode of the first clamping diode D1 is connected to a predetermined power source Vcc, and the anode of the first clamping diode D1 is connected to the first pin 301 of the connection terminal 30 and the other end of the first resistor R1, respectively. The anode of the second clamping diode D2 is grounded, the cathode of the second clamping diode D2 is connected to the anode of the first clamping diode D1, a first node Q1 is arranged between the cathode of the second clamping diode D2 and the anode of the first clamping diode D1, and the first node Q1 is connected to the second AD sampling end through a second resistor R2.
Further, according to an embodiment of the present invention, as shown in fig. 2, the second temperature detecting circuit 20 may further include a filter capacitor C1, one end of the filter capacitor C1 is connected to the second AD sampling terminal, and the other end of the filter capacitor C1 is connected to the anode of the second clamping diode D2 and then grounded.
Specifically, the temperature sensor 201 may be a thermistor, and in order to enable the water dispenser to display the water temperature quickly, the material used by the temperature sensor 201 needs to have high quality, the resistance value thereof can change quickly with the change of the temperature, and the reaction speed is controlled within 0.5 second. The first resistor R1 is a voltage dividing resistor of the temperature sensor 201, and may have a size of [5.1 × (1 ± 1%) ] K Ω; r2 is a protective resistor, and the size of the protective resistor can be 10K omega; the predetermined power Vcc may be +3V, and is not particularly limited.
Since the thermistor resistance value and the temperature are not in a linear relationship, the corresponding relationship between the resistance value and the temperature of the temperature sensor 201 (i.e., the temperature truth table of the thermistor) needs to be stored in the memory of the main control unit 40 in advance. The second AD sampling terminal of the main control unit 40 can convert the change of the resistance value of the temperature sensor 201 into the change of the voltage, then convert the voltage into the resistance value through operation, and then obtain the temperature value of the temperature sensor 201 through table lookup, so that the outlet water temperature in the outlet water pipeline can be measured.
According to one embodiment of the present invention, as shown in fig. 3, the temperature sensor 201 may be made in a bullet head type.
According to an embodiment of the present invention, a three-way valve is disposed on the water outlet pipeline, a first end of the three-way valve is used for water inlet, a second end of the three-way valve is used for water outlet, and a third end of the three-way valve is used for installing the temperature sensor 201.
Specifically, a temperature sensor 201 made in a bullet type may be installed at a third end of the three-way valve in the water outlet line through a nut to detect the temperature of water.
According to one embodiment of the invention, the display unit 30 is a digital display screen.
For example, as shown in fig. 4, when the water dispenser is in a standby state, the word "heating water temperature" is flashing, and the digital display screen displays the heating water temperature in the hot tank of the water dispenser; when the water dispenser is in a water outlet state, the word of the 'water outlet temperature' is flashing, and the digital display screen displays the water outlet temperature of the water dispenser. The digital display screen can also be used for displaying other parameters of the water dispenser, such as date, time, water purification amount and the like, which are not described herein in detail.
It can be understood that the heating water temperature and the outlet water temperature can share one group of nixie tubes to save the space of the digital display screen.
It should be noted that, in the embodiment of the present invention, the water dispenser may be a campus water dispenser.
In summary, in the water dispenser according to the embodiment of the invention, the first temperature detection unit of the temperature display device of the water dispenser detects the temperature of the heating water in the hot tank of the water dispenser, the second temperature detection circuit detects the water outlet temperature of the water dispenser, the first AD sampling terminal of the main control unit samples the temperature of the heating water, the second AD sampling terminal samples the temperature of the water outlet, and the display unit is controlled to switch and display the temperature of the heating water and the temperature of the water outlet, so that the use experience of users is improved, and the cost is low.
In addition, the embodiment of the invention also provides a water dispenser, which comprises the temperature display device of the water dispenser.
According to the water dispenser provided by the embodiment of the invention, the first temperature detection unit of the temperature display device of the water dispenser is used for detecting the heating water temperature in the hot tank of the water dispenser, the second temperature detection circuit is used for detecting the water outlet temperature of the water dispenser, the first AD sampling end of the main control unit is used for sampling the heating water temperature, the second AD sampling end is used for sampling the water outlet temperature, and the display unit is controlled to switch and display the heating water temperature and the water outlet temperature, so that the use experience of a user is improved, and the cost is lower.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A temperature display device of a water dispenser is characterized by comprising:
the first temperature detection circuit is used for detecting the temperature of heating water in a hot tank of the water dispenser;
the second temperature detection circuit is used for detecting the water outlet temperature of the water dispenser;
the display unit is used for displaying the heating water temperature or the outlet water temperature;
the main control unit is connected with the first temperature detection circuit through a first AD sampling end, is connected with the second temperature detection circuit through a second AD sampling end, is connected with the display unit through a display control end, samples the heating water temperature through the first AD sampling end and samples the outlet water temperature through the second AD sampling end, judges the state of the water dispenser, and controls the display unit to switch and display the heating water temperature and the outlet water temperature according to the state of the water dispenser; wherein
The display unit switches and displays the heating water temperature and the outlet water temperature, and comprises: when the water dispenser is in a water outlet state, the main control unit controls the display unit to display the water outlet temperature; when the water dispenser is in a standby state, the main control unit controls the display unit to display the heating water temperature;
the second temperature detection circuit includes: the temperature sensor is arranged in a water outlet pipeline of the water dispenser, a truth table corresponding to the resistance value and the temperature of the temperature sensor is preset in a memory of the main control unit, the temperature corresponding to the resistance value of the temperature sensor is inquired according to the truth table, and the display unit displays the outlet water temperature according to the temperature.
2. The temperature display device of the water dispenser of claim 1, characterized in that,
one end of the first resistor is connected with a preset power supply;
the connecting terminal is used for connecting the temperature sensor, a first pin of the connecting terminal is connected with the other end of the first resistor, and a second pin of the connecting terminal is grounded;
the cathode of the first clamping diode is connected with the preset power supply, and the anode of the first clamping diode is respectively connected with the first pin of the wiring terminal and the other end of the first resistor;
the anode of the second clamping diode is grounded, the cathode of the second clamping diode is connected with the anode of the first clamping diode, a first node is arranged between the cathode of the second clamping diode and the anode of the first clamping diode, and the first node is connected with the second AD sampling end through a second resistor.
3. The temperature display device of the water dispenser according to claim 2, wherein the second temperature detection circuit further comprises a filter capacitor, one end of the filter capacitor is connected with the second AD sampling terminal, and the other end of the filter capacitor is connected with the anode of the second clamping diode and then grounded.
4. The temperature display device of a water dispenser as claimed in claim 2, wherein the temperature sensor is made in a bullet head type.
5. The temperature display device of the water dispenser as claimed in claim 4, wherein the water outlet pipeline is provided with a three-way valve, the first end of the three-way valve is used for feeding water, the second end of the three-way valve is used for discharging water, and the third end of the three-way valve is used for installing the temperature sensor.
6. The temperature display device of the water dispenser as claimed in any one of the claims 1 to 5, wherein when the water dispenser is in a water outlet state, the main control unit controls the display unit to display the water outlet temperature; when the water dispenser is in a standby state, the main control unit controls the display unit to display the heating water temperature.
7. The temperature display device of the water dispenser as claimed in claim 1, wherein the display unit is a digital display screen.
8. The temperature display device of the water dispenser as claimed in claim 1, wherein the water dispenser is a campus water dispenser.
9. A water dispenser characterized by comprising a temperature display device of the water dispenser as claimed in any one of claims 1 to 8.
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| CN201610872066.9A CN106235882B (en) | 2016-09-30 | 2016-09-30 | Water dispenser and temperature display device thereof |
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| CN201610872066.9A CN106235882B (en) | 2016-09-30 | 2016-09-30 | Water dispenser and temperature display device thereof |
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| CN106235882B true CN106235882B (en) | 2022-05-31 |
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| CN107468191B (en) * | 2017-08-21 | 2021-05-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish washing machine water inlet detection method and dish washing machine |
| CN109091011A (en) * | 2018-10-08 | 2018-12-28 | 王伟 | The water inlet tap attachment device and instant heating type drinking machine of water dispenser |
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