Multifunctional vehicle-mounted coffee machine
By separating the hot water unit and the extraction unit in the car coffee machine, and using a high-pressure pump and heater combined with the PCB control board, the existing car coffee machine has solved the problem of small amount and long production time, and achieved simple structure and small size , A multi-functional vehicle-mounted coffee machine with fast production speed and good coffee quality meets the needs of long-distance drivers for freshly ground coffee.
Patent Information
- Application Number
- CN202421123966.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-22
AI Technical Summary
Due to the complex structure and space limitations of existing car coffee machines, the amount of coffee is small, the production time is long, the taste is poor, and it is difficult to meet the needs of long-distance drivers for freshly ground coffee.
A multi-functional vehicle-mounted coffee machine with a simple structure and small size is designed. By separating the hot water unit from the extraction unit, and using a high-pressure pump and heater with a PCB control board, water extraction and heating are realized on demand, and water separation tray and The sealed and connected extraction unit uses solenoid valve to control the removal of cold water to ensure the quality and taste of coffee.
It significantly improves the speed of coffee making, ensures the quality of coffee, avoids the health problems caused by repeated heating of water storage, and slows down the oxidation process of coffee through sealing connections, providing a better flavor experience.
Smart Images
Figure CN222285236U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of coffee equipment, and specifically relates to a multifunctional vehicle-mounted coffee machine with simple structure, small volume, fast production speed, good coffee quality and multiple flavor selections. Background Art
[0002] Coffee products are mainly divided into instant, ready-to-drink and freshly ground coffee. Among them, instant coffee is a dry coffee extract obtained by evaporating the water in the coffee extract. Since the taste and nutritional content of instant coffee are not as good as freshly brewed traditional coffee, such as higher fat and sugar content, but lower high-quality protein and caffeine, the demand for ready-to-drink and freshly ground coffee is relatively high.
[0003] At present, car coffee machines are generally only installed in RVs because their structure is the same as that of the all-in-one machines commonly used in offices, resulting in a large size. As people's coffee consumption habits change, especially when driving long distances, they need to drink a cup of freshly brewed or ground coffee, but they cannot be installed in ordinary cars due to limited space.
[0004] In order to solve the problem of miniaturization of coffee machines, cup-type coffee machines have appeared in the prior art. A water boiling cup, a coffee bucket, a distillation cup and even a grinding mechanism are arranged in sequence, so that steam is generated in the water boiling cup, and coffee powder or coffee capsules are distilled in the distillation cup, and finally the distilled and condensed coffee liquid flows into the coffee bucket to form ready-to-drink coffee. However, the water boiling cup, the coffee bucket and the distillation cup are integrated in the cup body. Although the volume is small and easy to carry, due to the space limitation in the cup body, not only the amount of coffee produced is small and difficult to meet the drinking demand, but also the power of the vehicle-mounted power supply or the integrated battery power supply is limited, and the amount of steam generated is also small, resulting in a long time to make the required coffee. To this end, the prior art also has a coffee cup in which a water boiling cup, an extraction chamber and a coffee bucket are arranged in sequence, and the coffee cup can be placed upside down. When making coffee, it is necessary to first heat the cold water in the water boiling cup to form hot water, and then place the coffee cup in reverse so that the hot water in the water boiling cup gradually flows into the extraction chamber by gravity to extract the coffee powder therein, and the extract flows into the coffee bucket below to form instant coffee, without the need to place the coffee cup forward so that the water boiling cup is at the bottom; this coffee cup has a relatively simple structure and a small size, and can obtain more and faster instant coffee than a distillation structure, but because the amount of water added for extraction needs to be manually judged, it is difficult to accurately control the amount of water for extraction, and thus the taste of the extracted coffee varies greatly, losing the advantage of instant coffee. Of course, in the prior art, there are also coffee cups with a boiling cup at the bottom of the cup body, an extraction chamber at the top of the cup body and a coffee bucket in the middle, and then a pump is arranged at the bottom or top of the cup body to pump the hot water in the boiling cup into the extraction chamber, so that the amount of extracted water can be controlled by the pump to ensure the taste of the coffee; but since the water in the entire boiling cup needs to be heated each time coffee is made, not only the heating speed is slow, but also the water in the boiling cup is heated multiple times which is unhealthy, and since the volume of the boiling cup is limited by the cup body, water needs to be added frequently during use, and the application is more cumbersome. Utility Model Content
[0005] In order to overcome the deficiencies of the prior art, the utility model has developed a multifunctional vehicle-mounted coffee machine with simple structure, small size, fast production speed, good coffee quality and multiple flavor choices.
[0006] The utility model is implemented as follows: it includes a hot water unit, an extraction unit, a water cup, a tray, a shell, a PCB control board, and a power interface, wherein the extraction unit and the tray are respectively arranged above and below one side of the shell, the shell is provided with a clearance groove between the extraction unit and the tray, the water cup is movably arranged on the tray in the clearance groove and is located below the liquid outlet of the extraction unit, the hot water unit is arranged on one side of the water cup and the extraction unit, the power interface is fixedly arranged on the shell, the PCB control board is fixedly arranged in the shell and is electrically connected to the hot water unit and the power interface respectively, and the shell is also provided with a control panel electrically connected to the PCB control board;
[0007] The extraction unit includes a water distribution plate and a charging box. The water distribution plate is a cover-like structure with an open lower portion and a water inlet communicating with the inside and outside is arranged at the upper portion. The water inlet is connected to the water supply pipe of the hot water unit. A water distribution plate with a plurality of evenly distributed small holes is horizontally arranged in the cavity of the water distribution plate. The charging box is a cover-like structure with an open upper portion and a plurality of evenly distributed filter holes at the bottom. The water distribution plate and the charging box are detachably connected mouth to mouth.
[0008] Furthermore, at least three outwardly extending locking bosses are evenly distributed circumferentially on the bottom side wall of the water distribution plate, and L-shaped locking grooves corresponding to the locking bosses of the water distribution plate are evenly distributed circumferentially on the top side wall of the charging box. The bottom outer diameter of the water distribution plate is not larger than the top inner diameter of the charging box, and the water distribution plate is detachably connected to the charging box through the cooperation of the locking bosses and the L-shaped locking grooves.
[0009] Furthermore, a step extending to the open end face is also provided on the upper part of the inner wall of the charging box, the L-shaped locking groove is evenly distributed on the side wall of the step in the circumferential direction, the outer diameter of the bottom of the water distribution plate is not larger than the inner diameter of the step, and a sealing ring with an outer diameter larger than the inner diameter of the water distribution plate is also provided at the bottom of the step.
[0010] Furthermore, the thickness of the sealing ring is greater than the vertical distance from the bottom of the step to the bottom end of the L-shaped locking groove.
[0011] Furthermore, the hot water unit includes a water bucket, a high-pressure pump, a heater, a temperature sensor, and a solenoid valve I. The water inlet pipeline of the high-pressure pump extends into the water bucket and the water outlet pipeline is connected to the liquid inlet of the heater. The temperature sensor is arranged in the drain outlet of the heater, the solenoid valve I is arranged on the drain outlet pipeline of the heater, the outlet pipeline of the solenoid valve I is connected to the water inlet, and the high-pressure pump, heater, temperature sensor and solenoid valve I are fixedly arranged in the shell and are electrically connected to the PCB control board respectively.
[0012] Furthermore, a waste water tank fixed inside or placed outside the shell is provided, and a solenoid valve II connected in parallel with the solenoid valve I is provided on the drain outlet pipe of the heater, the outlet pipe of the solenoid valve II is connected to the water inlet of the waste water tank, and the solenoid valve II is electrically connected to the PCB control board.
[0013] Furthermore, a water outlet is provided at the bottom of the tray, and the water outlet is connected to the water inlet of the waste water tank through a pipeline.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. The utility model sets the hot water unit and the extraction unit separately, abandons the traditional cup-type structure which is set up in sequence from top to bottom, and sets a high-pressure pump and a heater controlled by a PCB control board on the hot water pipeline. Therefore, not only a larger water storage space can be obtained to avoid the inconvenience of frequent water addition, but also the PCB control board can be used to control water extraction and heating on demand, thereby significantly accelerating the speed of hot water generation to increase the speed of coffee making, and ensuring that the made coffee has good quality. It is also possible to choose to make coffee of different flavors through the control panel on the shell, and the health problems caused by repeated heating of stored water are avoided.
[0016] 2. The utility model arranges a water distribution tray with a plurality of small holes evenly distributed in the water distribution tray of the extraction unit, which can ensure that the hot water is in full contact with the coffee powder in the charging box, avoiding the problem of coffee powder waste caused by inconsistent extraction of coffee powder in the middle and at the edge of the charging box, and the water distribution tray and the charging box are connected by a lock, which is also convenient for loading and cleaning of coffee powder. In addition, by arranging a sealing ring in the charging box to form a sealed connection with the water distribution tray, it can also avoid the dissipation of volatiles during extraction and reduce contact with air to slow down the oxidation process, thereby giving the extracted coffee an excellent flavor.
[0017] 3. The utility model arranges solenoid valve I and solenoid valve II in parallel on the drain pipe of the heater, and arranges a waste water tank connected to the outlet pipe of solenoid valve II. By controlling solenoid valve I and solenoid valve II respectively, cold water in the rear end pipe of the heater can be discharged, thereby preventing cold water from participating in extraction and affecting the taste.
[0018] In summary, the utility model has the characteristics of simple structure, small size, fast production speed, good coffee quality and multiple flavor choices. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the principle structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the extraction unit structure of the utility model;
[0021] Figure 3 for Figure 2 A top view of a water distribution plate;
[0022] Figure 4 for Figure 2 Left view of the charging box;
[0023] In the figure: 1-hot water unit, 11-water bucket, 12-high pressure pump, 13-heater, 14-solenoid valve I, 15-solenoid valve II, 2-extraction unit, 21-water distribution plate, 211-water inlet, 212-water distribution plate, 213-locking boss, 22-charging box, 221-filter hole, 222-L-shaped locking groove, 223-step, 23-sealing ring, 3-water cup, 4-tray, 5-waste water tank, 6-coffee cake. DETAILED DESCRIPTION
[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited in any way. Any changes or improvements made based on the teachings of the present invention belong to the protection scope of the present invention.
[0025] like Figures 1 to 4 As shown, the utility model includes a hot water unit 1, an extraction unit 2, a water cup 3, a tray 4, a shell (not shown), a PCB control board (not shown), and a power interface (not shown). The extraction unit 2 and the tray 4 are respectively arranged above and below one side of the shell, and the shell is provided with a clearance groove between the extraction unit 2 and the tray 4. The water cup 3 is movably arranged on the tray 4 in the clearance groove and is located below the liquid outlet of the extraction unit 2. The hot water unit 1 is arranged on one side of the water cup 3 and the extraction unit 2. The power interface is fixedly arranged on the shell, and the PCB control board is fixedly arranged in the shell and is electrically connected to the hot water unit 1 and the power interface respectively. The shell is also provided with a control panel electrically connected to the PCB control board;
[0026] The extraction unit 2 includes a water distribution plate 21 and a charging box 22. The water distribution plate 21 is a cover-like structure with an open lower portion and a water inlet 211 communicating with the inside and outside is arranged on the upper portion. The water inlet 211 is connected to the water supply pipe of the hot water unit 1. A water distribution plate 212 with a plurality of small holes evenly distributed is horizontally arranged in the cavity of the water distribution plate 21. The charging box 22 is a cover-like structure with an open upper portion and a plurality of filter holes 221 evenly distributed on the bottom. The water distribution plate 21 and the charging box 22 are detachably connected mouth to mouth.
[0027] At least three outwardly extending locking bosses 213 are evenly distributed circumferentially on the bottom side wall of the water distribution plate 21, and L-shaped locking grooves 222 corresponding to the locking bosses 213 of the water distribution plate 21 are evenly distributed circumferentially on the top side wall of the charging box 22. The bottom outer diameter of the water distribution plate 21 is not larger than the top inner diameter of the charging box 22. The water distribution plate 21 is detachably connected to the charging box 22 by cooperating with the locking bosses 213 and the L-shaped locking grooves 222.
[0028] The upper part of the inner wall of the charging box 22 is also provided with a step 223 extending to the open end face, the L-shaped locking grooves 222 are evenly distributed on the side walls of the step 223 in the circumferential direction, the bottom outer diameter of the water distribution plate 21 is not larger than the inner diameter of the step 223, and the bottom of the step 223 is also provided with a sealing ring 23 whose outer diameter is larger than the inner diameter of the water distribution plate 21.
[0029] The thickness of the sealing ring 23 is greater than the vertical distance from the bottom of the step 223 to the bottom end of the L-shaped locking groove 222 .
[0030] The hot water unit 1 includes a water bucket 11, a high-pressure pump 12, a heater 13, a temperature sensor, and a solenoid valve I14. The water inlet pipeline of the high-pressure pump 12 extends into the water bucket 11 and the water outlet pipeline is connected to the liquid inlet of the heater 13. The temperature sensor is arranged in the drain outlet of the heater 13. The solenoid valve I14 is arranged on the drain outlet pipeline of the heater 13. The outlet pipeline of the solenoid valve I14 is connected to the water inlet 211. The high-pressure pump 12, the heater 13, the temperature sensor and the solenoid valve I14 are fixedly arranged in the shell and are electrically connected to the PCB control board respectively.
[0031] The utility model is also provided with a waste water tank 5 fixed in the shell or placed outside the shell, and a solenoid valve II15 connected in parallel with the solenoid valve I14 is also provided on the drain outlet pipeline of the heater 13, the outlet pipeline of the solenoid valve II15 is connected with the water inlet of the waste water tank 5, and the solenoid valve II15 is electrically connected with the PCB control board.
[0032] The bottom of the tray 4 is provided with a water outlet, and the water outlet is connected with the water inlet of the waste water tank 5 through a pipeline.
[0033] like Figures 1 to 4 As shown, the beverage making principle and process of the utility model are as follows:
[0034] Step 1: Separate the charging box 22 from the water distribution plate 21 , and then remove the charging box 22 .
[0035] Step 2: Put the coffee cake 6 or tea cake and the sealing ring 23 into the loading box 22.
[0036] Step three: Insert the locking boss 213 of the water distribution plate 21 into the L-shaped locking groove 222 of the charging box 22, and then rotate the charging box 22 to connect it with the water distribution plate 21. At this time, the sealing ring 23 in the charging box 22 presses against the bottom end of the water distribution plate 21, so that the water distribution plate 21 and the charging box 22 form a seal.
[0037] Step 4: Place the water cup 3 on the tray 4 below the loading box 22.
[0038] Step 5: Connect the power bank or vehicle power supply through the power port, and then select power on on the control panel.
[0039] Step 6: Select one of the six buttons on the control panel: espresso, Americano, hand-brewed coffee, tea, hot water and cold water, and check whether the water volume meets the demand. If not, adjust the water volume.
[0040] Step 7: After confirming the selection on the control panel, the high-pressure pump 12 automatically pumps the water in the water bucket 11 and heats it through the heater 13. At this time, the solenoid valve II 15 is normally open and the solenoid valve I 14 is normally closed, and the PCB control board is set with a delay time to discharge the cold water in the rear end pipeline of the heater 13 into the waste water tank 5. After the delay time is up, the solenoid valve II 15 is automatically closed and the solenoid valve I 14 is opened, and the high-pressure and high-temperature water enters the water distribution plate 21, and the small holes on the water distribution plate 212, under the action of high pressure, the water evenly penetrates the coffee cake 6 or tea cake, extracts the effective ingredients in the coffee or tea, and then flows into the water cup 3 through the filter hole 221 at the bottom of the charging box 22, that is, the pre-selected coffee or hot tea and other beverages are prepared.
[0041] Step 8: After the beverage is made, remove the water cup 3, then separate the charging box 22 from the water distribution plate 21, remove the coffee or tea residues, and then connect it to the water distribution plate 21; if it is no longer used, put the water cup 3 on the tray 4, then click on the cleaning button on the control panel to clean the charging box 22, and the cleaning water flows into the water cup 3. After completion, pick up the water cup 3 and pour the cleaning water therein into the tray 4 and into the waste water tank 5, completing the entire production process.
[0042] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A multifunctional vehicle-mounted coffee machine, characterized in that: The invention comprises a hot water unit (1), an extraction unit (2), a water cup (3), a tray (4), a shell, a PCB control board, and a power interface, wherein the extraction unit (2) and the tray (4) are respectively arranged above and below one side of the shell, and the shell is provided with a clearance groove between the extraction unit (2) and the tray (4); the water cup (3) is movably arranged on the tray (4) in the clearance groove and is located below the liquid outlet of the extraction unit (2); the hot water unit (1) is arranged on one side of the water cup (3) and the extraction unit (2); the power interface is fixedly arranged on the shell, the PCB control board is fixedly arranged in the shell and is respectively electrically connected to the hot water unit (1) and the power interface, and the shell is also provided with a control panel electrically connected to the PCB control board; The extraction unit (2) comprises a water distribution plate (21) and a charging box (22); the water distribution plate (21) is a cover-like structure with an open bottom and a water inlet (211) communicating with the inside and outside provided on the top; the water inlet (211) is connected to a water supply pipe of the hot water unit (1); a water distribution plate (212) with a plurality of evenly distributed small holes is horizontally arranged in the cavity of the water distribution plate (21); the charging box (22) is a cover-like structure with an open top and a plurality of evenly distributed filter holes (221) on the bottom; the water distribution plate (21) and the charging box (22) are detachably connected mouth to mouth.
2. The multifunctional vehicle-mounted coffee machine according to claim 1, characterized in that: At least three outwardly extending locking bosses (213) are evenly distributed circumferentially on the bottom side wall of the water distribution plate (21); L-shaped locking grooves (222) corresponding to the locking bosses (213) of the water distribution plate (21) are evenly distributed circumferentially on the top side wall of the charging box (22); the bottom outer diameter of the water distribution plate (21) is not greater than the top inner diameter of the charging box (22); and the water distribution plate (21) is detachably connected to the charging box (22) by cooperating with the locking bosses (213) and the L-shaped locking grooves (222).
3. The multifunctional vehicle-mounted coffee machine according to claim 2, characterized in that: The upper portion of the inner wall of the charging box (22) is further provided with a step (223) extending to the open end surface, the L-shaped locking grooves (222) are evenly distributed on the side wall of the step (223) in the circumferential direction, the outer diameter of the bottom of the water distribution plate (21) is not greater than the inner diameter of the step (223), and the bottom of the step (223) is further provided with a sealing ring (23) having an outer diameter greater than the inner diameter of the water distribution plate (21).
4. The multifunctional vehicle-mounted coffee machine according to claim 3, characterized in that: The thickness of the sealing ring (23) is greater than the vertical distance from the bottom of the step (223) to the bottom end of the L-shaped locking groove (222).
5. The multifunctional vehicle-mounted coffee machine according to claim 1, 2, 3 or 4, characterized in that: The hot water unit (1) comprises a water bucket (11), a high-pressure pump (12), a heater (13), a temperature sensor, and a solenoid valve I (14); the water inlet pipeline of the high-pressure pump (12) extends into the water bucket (11) and the water outlet pipeline is connected to the liquid inlet of the heater (13); the temperature sensor is arranged in the drain outlet of the heater (13); the solenoid valve I (14) is arranged on the drain outlet pipeline of the heater (13); the outlet pipeline of the solenoid valve I (14) is connected to the water inlet (211); the high-pressure pump (12), the heater (13), the temperature sensor, and the solenoid valve I (14) are fixedly arranged in a housing and are respectively electrically connected to a PCB control board.
6. The multifunctional vehicle-mounted coffee machine according to claim 5, characterized in that: A waste water tank (5) is also provided which is fixed inside the shell or placed outside the shell. A solenoid valve II (15) connected in parallel with the solenoid valve I (14) is also provided on the drainage pipe of the heater (13). The outlet pipe of the solenoid valve II (15) is connected to the water inlet of the waste water tank (5). The solenoid valve II (15) is electrically connected to the PCB control board.
7. The multifunctional vehicle-mounted coffee machine according to claim 6, characterized in that: The bottom of the tray (4) is provided with a water outlet, and the water outlet is connected to the water inlet of the waste water tank (5) through a pipeline.