Variable-temperature extraction coffee tea machine

Abstract

The utility model discloses a variable-temperature extraction coffee tea machine, which belongs to the technical field of coffee machines and comprises a device body, and a hot water boiler, a cold water electromagnetic valve, a flow meter, a top-speed heating plate, a hot water outlet electromagnetic valve, a brewing head electromagnetic valve, a brewing head and a temperature control probe are fixedly arranged in the device body. Compared with a conventional cold and heat exchange coffee tea machine, the cold and heat exchange coffee tea machine has the advantages that drinks at different temperatures are made at the same brewing head, coffee extraction and tea extraction are shared, the time for resetting the temperature and waiting for reheating / cooling of the machine can be saved, and different drink temperatures can be adapted through standby medium temperature and heating / cooling during making; the maximum temperature difference can reach about 25-30 DEG C, coffee and tea soup with better flavor can be extracted at different temperatures according to the characteristics of different coffee beans and tea leaves by arranging the top-speed heating disc, and extraction can be carried out at different temperatures in each stage of extraction so as to extract different flavors of different coffee beans and tea leaves.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee machine technical field more specifically, relate to a kind of coffee and tea machine of variable temperature extraction. BACKGROUND

[0002] Coffee machine on market usually uses 92 ℃ water to extract coffee or freshly ground tea, but temperature can also be adjusted according to coffee beans and post-processing method. At the same time, the difference in extraction temperature usually affects the taste and flavor of the extracted coffee. With the development of domestic coffee culture, the specialty coffee culture of pursuing more and better coffee flavor gradually rises. The machine on market usually uses heat exchange boiler to make the water temperature for making coffee reach 90~95 ℃, and cannot set temperature. Some high-end models will adopt multiple small boilers, each small boiler corresponds to a brewing head, and different temperatures are set to extract different varieties of coffee beans and tea leaves. When the order accumulation of a single brewing head is too large during peak dining hours, it will affect the production efficiency of the store, and the other brewing head cannot be made or the production effect is poor due to temperature difference.

[0003] After searching, the current mainstream coffee extraction temperature is 92 ℃, which has been widely used since it was defined in 1960. Therefore, the coffee and tea machines on the market are mainly divided into two types: ① heat exchange coffee and tea machine: the extraction temperature is set before leaving the factory, which is generally achieved by heat exchange principle to make the production temperature between 90~95, and the temperature will gradually decrease with the increase of extraction time; ② multi-temperature coffee and tea machine: the machine has multiple small boilers to correspond to different temperatures, and the customer can adjust the temperature according to his own idea after receiving the machine, so that the left and right brewing heads are heated to different temperatures to cope with different varieties / post-processing methods of coffee beans and tea leaves. However, each brewing head can only fix a single extraction temperature, and cannot be used simultaneously during peak hours, which seriously affects the production efficiency. These two types of coffee machines can only extract coffee by water with a single temperature, and cannot change the production temperature of the front and rear drinks, so in order to solve the above problems, a coffee and tea machine with variable temperature extraction is essential. SUMMARY

[0004] The technical problem solved by the utility model is to provide a coffee and tea machine with variable temperature extraction, which can solve the problems raised in the background technology.

[0005] To solve the above technical problems, according to one aspect of the utility model, more specifically, a coffee and tea machine with variable temperature extraction, comprising a device main body, a hot water boiler, a cold water solenoid valve, a flowmeter, an ultra-fast heating disc, a hot water outlet solenoid valve, a brewing head solenoid valve, a brewing head and a temperature control probe are fixedly arranged inside the device main body.

[0006] The hot water boiler is fixedly connected with a pipeline, the cold water electromagnetic valve is fixedly connected with a pipeline, the brewing head electromagnetic valve is fixedly connected with a pipeline, the temperature control probe is fixedly arranged on the top of the super-speed heating disc, the brewing head is fixedly arranged on one side of the super-speed heating disc, the hot water outlet electromagnetic valve is connected with the brewing head electromagnetic valve, and the hot water boiler is fixedly arranged on one side.

[0007] Further, the hot water boiler is used for storing hot water, the cold water electromagnetic valve is used for controlling the opening and closing of the cold water pipeline, the flow meter is used for detecting the flow of the pipeline, the super-speed heating disc is used for heating the solution, the hot water outlet electromagnetic valve is used for controlling the opening and closing of the hot water pipeline, the brewing head electromagnetic valve is used for controlling the opening and closing of the brewing head, and the temperature control probe is used for detecting the temperature in the brewing head.

[0008] Further, the hot water boiler, the super-speed heating disc and the brewing head are all fixedly provided with NTC temperature sensors.

[0009] The beneficial effects of the variable-temperature extraction tea and coffee machine are as follows.

[0010] By arranging the hot water boiler, compared with the conventional cold and hot exchange tea and coffee machine, the same brewing head can be used to make different temperature beverages, the coffee and tea extraction can be shared, the temperature can be reset, the machine can be heated / cooled, the standby temperature can be used to make different beverage temperatures, the maximum temperature difference can reach about 25-30 DEG C, and the practicability is improved.

[0011] By arranging the super-speed heating disc, different temperatures can be used to extract coffee and tea soup with better flavor according to the characteristics (altitude, processing method, roasting degree, etc.) of different coffee beans and tea leaves, different temperatures can be used for extraction in each extraction process, and different flavors of different coffee beans and tea leaves can be extracted. DRAWINGS

[0012] The utility model will be further explained in detail in combination with the drawings and specific implementation methods.

[0013] Figure 1 It is a main body structure schematic view of the variable-temperature extraction tea and coffee machine.

[0014] Figure 2 It is a main body structure schematic view of the variable-temperature extraction tea and coffee machine. Figure 1 It is an enlarged schematic view of structure A.

[0015] In the diagram: 1. Hot water boiler; 2. Cold water solenoid valve; 3. Flow meter; 4. Rapid heating plate; 5. Hot water outlet solenoid valve; 6. Brewing head solenoid valve; 7. Brewing head; 8. Temperature control probe; 9. Main body of the device. Detailed Implementation

[0016] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1

[0018] like Figures 1-2 As shown, according to one aspect of this utility model, a variable temperature extraction coffee / tea machine is provided, comprising a main body 9. Inside the main body 9, a hot water boiler 1, a cold water solenoid valve 2, a flow meter 3, a high-speed heating plate 4, a hot water outlet solenoid valve 5, a brewing head solenoid valve 6, a brewing head 7, and a temperature control probe 8 are fixedly installed. A pipe is fixedly connected between the hot water boiler 1 and the cold water solenoid valve 2; a pipe is fixedly connected between the cold water solenoid valve 2 and the brewing head solenoid valve 6; a pipe is fixedly connected between the brewing head solenoid valve 6 and the high-speed heating plate 4; the temperature control probe 8 is fixedly installed on the top of the high-speed heating plate 4; and the brewing head 7 is fixedly installed on the high-speed heating plate 4. On one side of the heating plate 4, the hot water solenoid valve 5 is connected to the brewing head solenoid valve 6. On one side of the hot water boiler 1, 10 is fixedly installed. The flow meter 3 is connected to 10 and the brewing head solenoid valve 6 on both sides respectively. By setting up the hot water boiler 1, compared with conventional hot and cold exchange coffee machines, this design can make beverages at different temperatures with the same brewing head, achieving the goal of extracting coffee and tea. This saves the time of resetting the temperature and waiting for the machine to reheat / cool down. It can also adapt to different beverage temperatures by using the standby medium temperature and raising / lowering the temperature during brewing. The maximum temperature difference can reach about 25~30℃, which effectively improves practicality.

[0019] In this embodiment, the hot water boiler 1 is used to store hot water, the cold water solenoid valve 2 is used to control the opening and closing of the cold water pipeline, the flow meter 3 is used to detect the flow rate of the pipeline, the rapid heating plate 4 is used to heat the solution, the hot water outlet solenoid valve 5 is used to control the opening and closing of the hot water pipeline, the brewing head solenoid valve 6 is used to control the opening and closing of the brewing head 7, and the temperature control probe 8 is used to detect the internal temperature of the brewing head. By setting the rapid heating plate 4, different temperatures can be used to extract coffee with better flavor according to the characteristics of different coffee beans (altitude, processing method, roasting degree, etc.). Different temperatures can be used for extraction in each stage of extraction to extract different flavors of different teas.

[0020] In this embodiment, the hot water boiler 1, the ultra-fast heating disc 4 and the surface inside the brewing head 7 are fixedly provided with NTC temperature sensors. The hot water boiler 1, the ultra-fast heating disc 4 and the surface inside the brewing head 7 have NTC temperature sensors. When the machine calculates the temperature, the PID algorithm for comprehensive calculation of the internal temperature of the hot water boiler 1, the outlet water temperature of the hot water boiler 1, the outlet water temperature of the ultra-fast heating disc 4 and the temperature of the brewing head 7 is used to automatically schedule the heating power of the ultra-fast heating disc 4. At the same time, due to the limitation of the pipeline from the ultra-fast heating disc 4 to the brewing head 7, a certain temperature compensation will be made on the outlet water temperature.

[0021] Working principle: when the machine is on standby, the brewing head will be kept at an intermediate temperature, and the hot water boiler will be kept at a lower temperature.

[0022] Before starting to make coffee, the machine will cool or preheat the brewing head according to the current target brewing temperature, combined with the actual hot water boiler temperature and the brewing head 7 temperature. When the beverage temperature is lower than the standby temperature, the machine will start the water pump, open the cold water electromagnetic valve 2, and continuously use normal temperature water to circulate and cool the brewing head 7. The normal temperature water used for cooling flows out from the other end of the brewing head 7. When the brewing head 7 is cooled to the target temperature, the coffee / tea soup is extracted. When the beverage temperature is higher than the standby temperature, the machine will start the water pump, hot water from the hot water boiler 1 enters the flowmeter 3, then enters the ultra-fast heating disc 4 from the flowmeter 3. The water is heated to the highest temperature in the ultra-fast heating disc 4. At the same time, the hot outlet water electromagnetic valve 5 is opened, and the hot water flows through the brewing head 7 to circulate and preheat the brewing head 7. After preheating, it flows out from the other side of the brewing head 7. When the brewing head is heated to the target temperature, the coffee / tea soup is extracted.

[0023] When starting to make coffee, the machine will start the water pump, hot water from the hot water boiler 1 enters the flowmeter 3, then enters the ultra-fast heating disc 4 from the flowmeter. The water is heated to the preset temperature in the ultra-fast heating disc 4 and flows out, then enters the brewing head through the hot outlet water electromagnetic valve 5, and finally flows into the brewing head 7 outlet through the brewing head electromagnetic valve 6 to extract the coffee / tea soup. The ultra-fast heating disc 4 will automatically adjust the power according to the algorithm. When the beverage temperature is much higher than the temperature of the hot water boiler 1, the ultra-fast heating disc 4 will heat at full power. When the beverage temperature is consistent with the temperature of the hot water boiler 1, the ultra-fast heating disc 4 will not work or heat at low power.

[0024] The hot water boiler 1, the ultra-fast heating disc 4 and the surface inside the brewing head 7 have NTC temperature sensors. When the machine calculates the temperature, the PID algorithm for comprehensive calculation of the internal temperature of the hot water boiler 1, the outlet water temperature of the hot water boiler 1, the outlet water temperature of the ultra-fast heating disc 4 and the temperature of the brewing head 7 is used to automatically schedule the heating power of the ultra-fast heating disc 4. At the same time, due to the limitation of the pipeline from the ultra-fast heating disc 4 to the brewing head 7, a certain temperature compensation will be made on the outlet water temperature.

[0025] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several deformations and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A variable temperature extraction tea maker comprising a device body (9), characterized in that: The device body (9) is internally fixedly provided with a hot water boiler (1), a cold water electromagnetic valve (2), a flow meter (3), an ultra-fast heating disc (4), a hot water outlet electromagnetic valve (5), a brewing head electromagnetic valve (6), a brewing head (7) and a temperature control probe (8); The hot water boiler (1) is fixedly connected with the cold water electromagnetic valve (2), the cold water electromagnetic valve (2) is fixedly connected with the brewing head electromagnetic valve (6), the brewing head electromagnetic valve (6) is fixedly connected with the ultra-fast heating disc (4), the temperature control probe (8) is fixedly arranged on the top of the ultra-fast heating disc (4), the brewing head (7) is fixedly arranged on one side of the ultra-fast heating disc (4), the hot water outlet electromagnetic valve (5) is connected with the brewing head electromagnetic valve (6), one side of the hot water boiler (1) is fixedly provided with (10), and the flow meter (3) is connected with (10) and the brewing head electromagnetic valve (6) on both sides.

2. A variable temperature extraction tea maker as claimed in claim 1, wherein: The hot water boiler (1) is used for storing hot water, the cold water electromagnetic valve (2) is used for controlling the opening and closing of the cold water pipeline, the flow meter (3) is used for detecting the flow of the pipeline, the ultra-fast heating disc (4) is used for heating the solution, the hot water outlet electromagnetic valve (5) is used for controlling the opening and closing of the hot water pipeline, the brewing head electromagnetic valve (6) is used for controlling the opening and closing of the brewing head (7), and the temperature control probe (8) is used for detecting the temperature inside the brewing head.

3. A variable temperature extraction tea maker as claimed in claim 2, wherein: The hot water boiler (1), the ultra-fast heating disc (4) and the brewing head (7) are all fixedly provided with NTC temperature sensors on the surfaces.

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