A brewer testing device and control method thereof

Abstract

The present invention provides a testing device for a brewer, comprising a main frame, a display module, including a touch display screen, a water boiling module at the bottom, connected to a water pipe and a brewing electromagnetic valve through a second L-shaped joint, connected to a waste water bucket and a brewer through a water pipe, a water leakage sensor at the bottom, a flow meter connected to the side of the water boiling module, a gear pump installed on one side of the flow meter, the flow meter connected to a water inlet electromagnetic valve through a water pipe, connected to a tap, a water tank arranged on one side of the water inlet electromagnetic valve, the water boiling module connected to the flow meter through a first L-shaped joint, the flow meter connected to a first three-way joint, a safety pressure relief valve, a second three-way joint through a water pipe, connected to a waste water bucket, and a one-way valve arranged between the first three-way joint and the first L-shaped joint. The present invention can query and set parameters through the touch display screen, thereby flexibly and conveniently realizing an aging test on the brewer, and at the same time intuitively observing the test progress and test status through the display screen and the counter.

Description

Technical Field

[0001] The present invention relates to the technical field of brewers, and in particular to a brewer testing device and a control method thereof. Background Art

[0002] With the progress of society, people's quality requirements for work, life, study, leisure and entertainment are also increasing rapidly. Correspondingly, people's acceptance of coffee drinks is also increasing, which means the expansion of the coffee market. At the same time, the competitive pressure in the coffee manufacturing equipment industry has also become greater. In this context, a brewer that can quickly brew a cup of high-quality freshly ground coffee is the most competitive core technology.

[0003] The brewer is usually installed on a fully automatic freshly ground coffee vending machine, which requires the brewer to operate safely, reliably and permanently during the operation of the vending machine. This relies on the aging test of the brewer during the design phase. The testing equipment for coffee brewers on the market is currently complex and expensive, and it cannot fully meet the testing needs, resulting in high testing costs and inaccurate test results.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] The object of the present invention is to provide a brewer testing device and a control method thereof to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A brewing device testing device includes a main frame, a power module, a control module, a water circuit module, a display module, a monitoring module, and a water boiling module. The water circuit module includes a water pipe. The main frame is provided with a display module. The display module includes a touch screen. A water boiling module is provided below the display module. The bottom of the water boiling module is connected to the water pipe through a second L-shaped joint. The top of the water boiling module is connected to a brewing solenoid valve through a straight joint. The brewing solenoid valve is connected to a waste water bucket and the brewing device through a water pipe. A water leakage sensor is installed below the brewing device. The module side is connected to a flow meter, a gear pump is installed on one side of the flow meter, the flow meter is connected to a water inlet solenoid valve through a water pipe, the water inlet solenoid valve is connected to a tap, a water tank is arranged on one side of the water inlet solenoid valve, the water boiling module is connected to the flow meter through a first L-shaped joint, the flow meter is connected to a first three-way joint through a water pipe, the first three-way joint is connected to a safety pressure relief valve, the safety pressure relief valve is connected to a second three-way joint, the second three-way joint is connected to a waste water bucket through a water pipe, and a one-way valve is arranged between the first three-way joint and the first L-shaped joint.

[0008] Furthermore, the main frame is an aluminum alloy frame, which serves to fix each module / component.

[0009] Furthermore, the power module includes a 12V switching power supply, a 24V switching power supply and a power board.

[0010] Furthermore, the control module includes a control circuit board, which is used for the internal control program to control the operation of the entire test device.

[0011] Furthermore, the water boiling module includes a water boiling boiler, an insulation layer, a pressure sensor, a temperature sensor, a thermostat, and a water boiling boiler power plug. The insulation layer wraps the water boiling boiler, the pressure sensor and the temperature sensor are connected to the inside of the water boiling boiler, the thermostat is close to the upper surface of the water boiling boiler, and the water boiling boiler power plug is installed on both sides of the upper surface.

[0012] Furthermore, the monitoring module includes a voltage counter and a water leakage sensor, the voltage counter senses the number of times the brewing solenoid valve is powered on and off, and the water leakage sensor detects whether the brewer has abnormal water leakage.

[0013] Furthermore, a control method of a brewer testing device comprises the following steps:

[0014] S1: Connect 220V strong electricity to the 12V switch power supply of the power module and turn on the tap water at the same time;

[0015] S2: After the 12V switching power supply is powered on, it provides 12V DC power to the control circuit board;

[0016] S3: After the control circuit board is powered on, the program runs:

[0017] s1. Provide 12V DC power to the power board, and control the power board to connect 220V strong power to the 24V switching power supply. After the 24V switching power supply is powered on, it outputs 24V DC power;

[0018] s2. Supply power to the water tank, read the water level value fed back by the water tank, and determine whether the water tank is full of water; if the water tank is full of water, it will not operate; if the water tank is not full of water, the water inlet solenoid valve will open to allow tap water to enter the water tank and fill the water tank with water; if the water level is out of control, the excess water will be discharged from the overflow pipe of the water tank to the waste water bucket.

[0019] s3. Provide 5V DC power to the pressure sensor and read the value fed back by the pressure sensor to determine whether the water inside the water boiler is full; if the water is not full, proceed to step S4; if the water is full, proceed to step S5;

[0020] S4: When the water volume in the water boiler is not full, the gear pump is turned on to pump the water in the water tank into the water boiler until the water boiler is filled with water. The one-way valve between the gear pump and the water boiler ensures that the water flow will not flow back due to the change of boiler pressure.

[0021] S5: When the water volume inside the water boiler is full, the control circuit board reads the value of the temperature sensor to determine the water temperature inside the water boiler: if the water temperature reaches the set value, execute step S7; if the water temperature is lower than the set value, the control power board connects 220V strong electricity to the water boiler to make the water boiler heat up, and execute step S6;

[0022] S6: When the temperature of the water-boiling boiler reaches the program-set temperature, the heating work is stopped. If the temperature is out of control, the water-boiling boiler continues to heat. When the temperature reaches the disconnection temperature of the thermostat, the thermostat forcibly disconnects the power supply of the water-boiling boiler;

[0023] S7: the brewer performs a test procedure: a set of continuous actions of brewing a cup of coffee;

[0024] S8: When the brewer performs the brewing test procedure to the stage of extracting coffee, the brewing solenoid valve is opened, and at the same time the gear pump works to pump the hot water inside the water boiler to the brewer to extract coffee, and the amount of water extracted is controlled by the flow meter;

[0025] S9: When the brewing solenoid valve is opened, the voltage counter senses the voltage and counts +1, which is used to count the number of brewer aging tests;

[0026] S10: The test wastewater after the hot water is used to extract the coffee through the brewer is discharged to the wastewater bucket through the brewer outlet pipe;

[0027] S11: After the coffee is extracted, the brewing solenoid valve and the gear pump are de-energized, and the brewer continues to execute the remaining test procedures until the end; at the same time, the residual waste water in the pipeline is discharged from the waste water outlet of the brewing solenoid valve to the waste water bucket;

[0028] S12: After completing one round of test procedures, the next round of test procedures is executed from step S4, and the test is repeated until the life requirement is met and the test is terminated;

[0029] S13: When the brewer reaches the end of its life, is damaged and leaks, the leaked water drops onto the leakage sensor, which is fed back to the control circuit board. The control program stops the test after identifying it.

[0030] Furthermore, during the coffee extraction in step S8:

[0031] (1). If it is detected that the hot water temperature inside the water boiler is lower than the set value, the water boiler will be powered on for heating;

[0032] (2). If it is detected that the water level in the water tank is insufficient, open the water inlet solenoid valve to fill the water tank with water;

[0033] (3) If the pressure is too high (pressure out of control) and exceeds the opening pressure of the safety relief valve, the safety relief valve will be opened and the pressure will be released into the waste water tank, thus playing a protective role.

[0034] Working principle of the invention: This test device simulates the action of a brewer brewing a cup of coffee, and continuously cycles the brewing to achieve uninterrupted testing, shortening the service life of 5 years or more to less than 3 months, greatly reducing the development and verification cycle of the brewer. At the same time, the brewing pressure, powder squeezing pressure, brewing time, brewing water volume, hot water temperature and other parameters of the brewer can be accurately adjusted, and the simulant can be used to simulate the coffee powder for recycling, saving the expensive cost of testing coffee beans.

[0035] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention is easy to operate. It only needs to install the brewer sample and connect it to the water circuit and the circuit to automatically and continuously operate. It only needs to be checked regularly, which saves manpower; (2) The present invention is flexible and convenient to use, with high precision and wide adaptability. According to needs, the test parameters such as the powder extrusion pressure and brewing pressure of the brewer test can be changed as needed without adding additional components or modifying the device. While meeting the accuracy requirements, it can adapt to brewers of various specifications and models, which further saves the cost of testing equipment; (3) The present invention has high testing efficiency and can adjust the speed of the aging test according to needs, thereby reducing the testing time and saving the product development and verification cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 is a stereoscopic diagram of a brewer testing device of the present invention;

[0038] Figure 2 It is an enlarged view of a three-dimensional view of a water boiling module of a brewer testing device of the present invention;

[0039] Figure 3 It is a front view of a stereogram of a brewer testing device of the present invention;

[0040] Figure 4 It is a right side view of a stereoscopic diagram of a brewer testing device of the present invention;

[0041] Figure 5It is a rear perspective view of a brewer testing device of the present invention.

[0042] In the figure: 1. Main bracket; 2. Tap water faucet; 3. Water inlet solenoid valve; 4. Water tank; 5. Water pipe; 6. 12V switching power supply; 7. 24V switching power supply; 8. Control circuit board; 9. Power board; 10. Touch screen; 11. Voltage counter; 12. Flow meter; 13. Gear pump; 14. First L-type joint; 15. One-way valve; 16. First three-way joint; 17. Safety pressure relief valve; 18. Second three-way joint; 19. Second L-type joint; 20. Water boiling module; 20-1. Water boiling boiler; 20-2. Insulation layer; 20-3. Water boiling boiler power plug; 20-4. Pressure sensor; 20-5. Temperature sensor; 20-6. Thermostat; 21. Straight joint; 22. Brewing solenoid valve; 23. Brewing device; 24. Water leakage sensor; 25. Waste water bucket. DETAILED DESCRIPTION

[0043] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0044] like Figure 1-5 As shown, a brewer testing device includes a main frame 1, a power module, a control module, a water channel module, a display module, a monitoring module, and a water boiling module. The main frame is provided with a display module, and the display module includes a touch display screen 10, a voltage counter 11 and a power board 9. A water boiling module 20 is provided below the display module. The bottom of the water boiling module 20 is connected to a water pipe 5 through a second L-shaped joint 19. The top of the water boiling module 20 is connected to a brewing solenoid valve 22 through a straight joint 21. The brewing solenoid valve 22 is connected to a waste water bucket and a brewer 23 through a water pipe. A water leakage sensor 24 is installed below the brewer. The side of the module is connected to a flow meter 12, a gear pump 13 is installed on one side of the flow meter, the flow meter 12 is connected to a water inlet solenoid valve through a water pipe, the water inlet solenoid valve 3 is connected to a tap 2, a water tank 4 is arranged on one side of the water inlet solenoid valve, the water boiling module is connected to the flow meter through a first L-shaped joint 14, the flow meter is connected to a first three-way joint 16 through a water pipe, the first three-way joint 16 is connected to a safety pressure relief valve 17, the safety pressure relief valve 17 is connected to a second three-way joint 18, the second three-way joint 18 is connected to a waste water bucket 25 through a water pipe 5, and a one-way valve 15 is arranged between the first three-way joint and the first L-shaped joint.

[0045] This test device simulates the action of the brewer brewing a cup of coffee, and continuously cycles the brewing to achieve uninterrupted testing, shortening the service life of 5 years or more to less than 3 months, greatly reducing the development and verification cycle of the brewer 23. At the same time, the brewing pressure, powder squeezing pressure, brewing time, brewing water volume, hot water temperature and other parameters of the brewer 23 can be accurately adjusted, and the simulant is used to simulate the coffee powder, which can be recycled, saving the expensive cost of testing coffee beans.

[0046] The touch display screen can display and query parameters such as the brewing pressure value, powder squeezing pressure, brewing time, brewing water volume and temperature of hot water in the water boiler of the brewing test of the brewer in real time, and display the real-time status of each component (such as abnormal component connection, testing in progress, test abnormality, etc.).

[0047] According to test needs, you can also adjust the test parameters through the touch screen, such as brewing pressure, powder squeezing pressure, brewing time, brewing water volume, hot water temperature, etc.

[0048] According to the above content, the water circuit module includes a water pipe 5 , and the monitoring module includes a water leakage sensor 24 and a voltage counter 11 .

[0049] According to the above content, the main frame 1 is an aluminum alloy frame, which plays the role of fixing various modules / components.

[0050] According to the above content, the power module includes a 12V switching power supply 6, a 24V switching power supply 7 and a power board 9.

[0051] According to the above content, the control module includes a control circuit board 8, which is used for the internal control program to control the operation of the entire test device.

[0052] According to the above content, the water boiling module 20 includes a water boiling boiler 20-1, an insulation layer 20-2, a pressure sensor 20-4, a temperature sensor 20-5, a thermostat 20-6, and a water boiling boiler power plug 20-3. The insulation layer 20-2 wraps the water boiling boiler 20-1, the pressure sensor 20-4 and the temperature sensor 20-5 are connected to the inside of the water boiling boiler, the thermostat is close to the upper surface of the water boiling boiler, and the water boiling boiler power plug 20-3 is installed on both sides of the upper surface.

[0053] According to the above content, the monitoring module includes a voltage counter 11 and a water leakage sensor 24. The voltage counter senses the number of times the brewing solenoid valve is powered on and off, and the water leakage sensor detects whether the brewer has abnormal water leakage.

[0054] According to the above content, a control method of a brewer testing device comprises the following steps:

[0055] S1: Connect 220V strong electricity to the 12V switch power supply of the power module and turn on the tap water at the same time;

[0056] S2: After the 12V switching power supply is powered on, it provides 12V DC power to the control circuit board;

[0057] S3: After the control circuit board 8 is powered on, the program runs:

[0058] s1. Provide 12V DC power to the power board, and control the power board to connect 220V strong power to the 24V switching power supply. After the 24V switching power supply is powered on, it outputs 24V DC power;

[0059] s2. Supply power to the water tank 4, read the water level value fed back by the water tank 4, and determine whether the water tank 4 is full of water; if the water tank 4 is full of water, it will not operate; if the water tank is not full of water, the water inlet solenoid valve will open to allow tap water to enter the water tank and fill the water tank with water; if the water level is out of control, the excess water will be discharged from the overflow pipe of the water tank 4 to the waste water bucket.

[0060] s3 provides 5V DC to the pressure sensor 20-4, and reads the feedback value of the pressure sensor 20-4 to determine whether the water inside the boiler is full; if the water is not full, proceed to step S4; if the water is full, proceed to step S5;

[0061] S4: When the water volume in the water-boiling boiler 20-1 is not full, the gear pump is turned on to pump the water in the water tank into the water-boiling boiler until the water-boiling boiler 20-1 is filled with water. The one-way valve between the gear pump 13 and the water-boiling boiler 20-1 ensures that the water flow will not flow back due to the change in boiler pressure.

[0062] S5: When the water volume inside the water boiler 20-1 is full, the control circuit board 8 reads the value of the temperature sensor 20-5 to determine the water temperature inside the water boiler 20-1: if the water temperature reaches the set value, execute step S7; if the water temperature is lower than the set value, the control power board 8 connects 220V strong electricity to the water boiler 20-1 to make the water boiler 20-1 heat up, and execute step S6;

[0063] S6: When the temperature of the water-boiling boiler 20-1 reaches the program-set temperature, the heating work is stopped. If the temperature is out of control, the water-boiling boiler 20-1 continues to heat. When the temperature reaches the disconnection temperature of the thermostat 20-6, the thermostat 20-6 forcibly disconnects the power supply of the water-boiling boiler 20-1;

[0064] S7: the brewer 20-3 executes a test procedure: a set of continuous actions of brewing a cup of coffee;

[0065] S8: When the brewer 20-3 performs the brewing test procedure to the stage of extracting coffee, the brewing solenoid valve is opened, and at the same time the gear pump works to pump the hot water inside the water boiler to the brewer to extract coffee, and the amount of water extracted is controlled by the flow meter;

[0066] S9: When the brewing solenoid valve 22 is opened, the voltage counter 11 senses the voltage and counts +1, which is used to count the number of brewer aging tests;

[0067] S10: The test wastewater after the hot water is used to extract the coffee through the brewing device is discharged to the wastewater bucket 25 through the brewing device outlet pipe;

[0068] S11: After the coffee extraction is completed, the brewing solenoid valve and the gear pump are de-energized, and the brewer continues to execute the remaining test procedures until the end; at the same time, the residual waste water in the pipeline is discharged from the waste water outlet of the brewing solenoid valve to the waste water bucket 25;

[0069] S12: After completing one round of test procedures, the next round of test procedures is executed from step S4, and the test is repeated until the life requirement is met and the test is terminated;

[0070] S13: When the brewer 23 reaches the life limit, is damaged and leaks, the leaked water drops onto the leakage sensor 24, which is fed back to the control circuit board. The control program stops the test after identification.

[0071] According to the above content, during the coffee extraction in step S8:

[0072] (1) If it is detected that the internal hot water temperature of the water boiler 20-1 is lower than the set value, the water boiler 20-1 is powered on for heating;

[0073] (2). If it is detected that the water level in the water tank 4 is insufficient, the water inlet solenoid valve 3 is opened to fill the water tank with water;

[0074] (3) If the pressure is too high (pressure out of control), exceeding the opening pressure of the safety relief valve 17, the safety relief valve will be opened, and the pressure will be released to the waste water tank 25, thus playing a protective role.

[0075] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A brewer testing device, characterized in that: It includes a main support, a power module, a control module, a water circuit module, a display module, a monitoring module, and a water boiling module. The water circuit module includes a water pipe. The main support is provided with a display module. The display module includes a touch screen. A water boiling module is provided below the display module. The water boiling module is connected to the water pipe through a second L-shaped joint below. A brewing solenoid valve is connected to the waste water bucket and the brewer through a water pipe above the water boiling module. A water leakage sensor is installed below the brewer. A flow meter is connected to the side of the water boiling module. A gear pump is installed on one side of the flow meter. The flow meter is connected to the water inlet solenoid valve through a water pipe. The water inlet solenoid valve is connected to a tap. A water tank is provided on one side of the water inlet solenoid valve. The water boiling module is connected to the flow meter through a first L-shaped joint. The flow meter is connected to a first three-way joint through a water pipe. The first three-way joint is connected to a safety pressure relief valve. The safety pressure relief valve is connected to a second three-way joint. The second three-way joint is connected to the waste water bucket through a water pipe. A one-way valve is provided between the first three-way joint and the first L-shaped joint. The main frame is an aluminum alloy frame, which serves to fix each module / component; The power module includes a 12V switching power supply, a 24V switching power supply and a power board; The control module includes a control circuit board, which is used for the internal control program to control the operation of the entire test device; The water boiling module comprises a water boiling boiler, an insulation layer, a pressure sensor, a temperature sensor, a thermostat, and a power plug of the water boiling boiler. The insulation layer wraps the water boiling boiler, the pressure sensor and the temperature sensor are connected to the inside of the water boiling boiler, the thermostat is close to the upper surface of the water boiling boiler, and the power plug of the water boiling boiler is installed on both sides of the upper surface; The monitoring module comprises a voltage counter and a water leakage sensor. The voltage counter senses the number of times the brewing solenoid valve is powered on and off, and the water leakage sensor detects whether the brewer has abnormal water leakage.

2. The control method of the brewer testing device according to claim 1, characterized in that the steps include: S1: Connect 220V strong electricity to the 12V switch power supply of the power module and turn on the tap water at the same time; S2: After the 12V switching power supply is powered on, it provides 12V DC power to the control circuit board; S3: The program runs after the control circuit board is powered on; s1. Provide 12V DC power to the power board, and control the power board to connect 220V strong power to the 24V switching power supply. After the 24V switching power supply is powered on, it outputs 24V DC power; s2. Supply power to the water tank, read the water level value fed back by the water tank, and judge whether the water tank is full of water; if the water tank is full of water, it will not act; if the water tank is not full of water, the water inlet solenoid valve will open, allowing tap water to enter the water tank and fill the water tank with water; if the water level is out of control, the excess water will be discharged from the overflow pipe of the water tank to the waste water bucket; s3. Provide 5V DC power to the pressure sensor and read the value fed back by the pressure sensor to determine whether the water inside the water boiler is full; if the water is not full, proceed to step S4; if the water is full, proceed to step S5; S4: When the water volume in the water boiler is not full, the gear pump is turned on to pump the water in the water tank into the water boiler until the water boiler is filled with water. The one-way valve between the gear pump and the water boiler ensures that the water flow will not flow back due to the change of boiler pressure. S5: When the water volume inside the water boiler is full, the control circuit board reads the value of the temperature sensor to determine the water temperature inside the water boiler: if the water temperature reaches the set value, execute step S7; if the water temperature is lower than the set value, the control power board connects 220V strong electricity to the water boiler to make the water boiler heat up, and execute step S6; S6: When the temperature of the water-boiling boiler reaches the program-set temperature, the heating work is stopped. If the temperature is out of control, the water-boiling boiler continues to heat. When the temperature reaches the disconnection temperature of the thermostat, the thermostat forcibly disconnects the power supply of the water-boiling boiler; S7: the brewer performs a test procedure: a set of continuous actions of brewing a cup of coffee; S8: When the brewer performs the brewing test procedure to the stage of extracting coffee, the brewing solenoid valve is opened, and at the same time the gear pump works to pump the hot water inside the water boiler to the brewer to extract coffee, and the amount of water extracted is controlled by the flow meter; S9: When the brewing solenoid valve is opened, the voltage counter senses the voltage and counts +1, which is used to count the number of brewer aging tests; S10: The test wastewater after the hot water is used to extract the coffee through the brewer is discharged to the wastewater bucket through the brewer outlet pipe; S11: After the coffee is extracted, the brewing solenoid valve and the gear pump are de-energized, and the brewer continues to execute the remaining test procedures until the end; at the same time, the residual waste water in the pipeline is discharged from the waste water outlet of the brewing solenoid valve to the waste water bucket; S12: After completing one round of test procedures, the next round of test procedures is executed from step S4, and the test is repeated until the life requirement is met and the test is terminated; S13: When the brewer reaches the end of its life, is damaged and leaks, the leaked water drops onto the leakage sensor, which is fed back to the control circuit board. The control program stops the test after identifying it.

3. The control method of the brewer testing device according to claim 2, characterized in that: During the coffee extraction in step S8: (1). If it is detected that the hot water temperature inside the water boiler is lower than the set value, the water boiler will be powered on for heating; (2). If it is detected that the water level in the water tank is insufficient, open the water inlet solenoid valve to fill the water tank with water; (3) If the pressure is too high and exceeds the opening pressure of the safety relief valve, the safety relief valve will be opened and the pressure will be released into the waste water tank, thus playing a protective role.

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