CN115778184A - Water vapor isolation method of coffee machine - Google Patents
Water vapor isolation method of coffee machine Download PDFInfo
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- CN115778184A CN115778184A CN202211622669.5A CN202211622669A CN115778184A CN 115778184 A CN115778184 A CN 115778184A CN 202211622669 A CN202211622669 A CN 202211622669A CN 115778184 A CN115778184 A CN 115778184A
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Abstract
The invention discloses a water vapor isolation method of a coffee machine, belonging to the coffee beverage making technology.A powder channel of the existing coffee grinder is in an open state after grinding, so that residual powder remained in the powder channel and a coffee grinding chamber is easy to damp and mildew; and the brewing cavity is positioned in the powder receiving position for receiving the powder, and the elastic force of the elastic element is used for promoting the sliding plug to move to open the powder falling channel; when the brewing cavity is positioned at the brewing position, the water pump conveys water to the brewing cavity through the first water path and conveys water to the back side of the sliding plug through the second water path, and the water pressure borne by the back side of the sliding plug overcomes the elastic force of the elastic element to drive the sliding plug to move and close the powder falling channel, thereby blocking the communication between the bean grinding chamber and the outside through the powder falling channel. The invention does not need to add extra power parts, has simple structure, flexible action and easy control, and can control the manufacturing cost.
Description
Technical Field
The invention belongs to the coffee beverage making technology, and particularly relates to a water vapor isolation method of a coffee machine.
Background
After the existing full-automatic coffee machine grinds the coffee, the powder channel is in an open state, and a coffee grinding chamber of the coffee machine is communicated with the space in the machine through the powder channel, so that residual powder remained in the powder channel and the coffee grinding chamber is easy to damp and go mouldy, and coffee beverage loses aroma. In particular, after a cup of coffee has been brewed, the brewing chamber has a temperature and humidity higher than the ambient environment, thus increasing the humidity inside the coffee maker, which may aggravate the wetting and the moulding of the residual powder. When the brewing cavity is shifted to the powder receiving position, steam generated by the brewing cavity can directly flow upwards through the powder channel to the bean grinding chamber, and the wetting and the mildewing of residual powder are further aggravated.
Disclosure of Invention
The invention aims to solve the technical problems and provide a water vapor isolation method of a coffee machine, aiming at overcoming the defect that residual powder remained in a powder channel and a bean grinding chamber is easily damped and mildewed due to the fact that the powder channel is in an open state after the existing bean grinding machine finishes grinding.
In order to achieve the purpose, the water-vapor isolation method of the coffee machine is characterized in that:
a powder falling channel extends outwards from a bean grinding chamber of the coffee machine, a sliding plug is configured for the powder falling channel, and the back side of the sliding plug is connected with a water pump through a second water path;
the brewing cavity is positioned in the powder receiving position for receiving powder, and the elastic force of the elastic element is used for promoting the sliding plug to move to open the powder falling channel;
during brewing of the brewing cavity at the brewing position, the water pump conveys water to the brewing cavity through the first water path and conveys water to the back side of the sliding plug through the second water path, and the water pressure borne by the back side of the sliding plug overcomes the elastic force of the elastic element to drive the sliding plug to move and close the powder falling channel.
According to the method, the sliding plug is controlled to slide timely, the powder falling channel is opened in the powder receiving process of the brewing cavity, and the powder falling channel is closed during the brewing process of the brewing cavity at the brewing position, so that the time for communicating the bean grinding chamber with the outside through the powder falling channel is shortened, and moisture in the coffee machine and steam generated by the bean grinding chamber are prevented from entering the bean grinding chamber through the powder falling channel as much as possible.
During the bean grinding and powder receiving processes of the bean grinder, the powder falling channel is opened, but the falling coffee powder has the function of preventing moisture and steam from flowing upwards to enter the bean grinding chamber. Therefore, the bean grinder has the function of isolating water vapor.
According to the method, the water pump is connected to the back side of the sliding plug through the pipeline to provide water pressure for the back side of the sliding plug, the sliding plug is driven to move to close the powder falling channel by the pressure of water flow conveyed by the water pump of the coffee machine, an additional power part is not needed to be added, the structure is simple, the action is flexible, the control is easy, and the manufacturing cost is controlled.
In order to control the flow direction of the water flow and control the water flow at a proper pressure, a first one-way valve for controlling the water flow in the first water path to flow from the water pump to the brewing cavity is arranged in the first water path, and a pressure relief valve and a second one-way valve for controlling the water flow in the second water path to flow from the water pump to the back side of the sliding plug are arranged in the second water path. When the pressure release valve is closed and the water pump works, the back water pressure of the sliding plug keeps pressure, and the sliding plug is kept at the position for closing the powder falling channel. When the pressure relief valve is opened and the water pump stops working, the water pressure at the back side of the sliding plug is reduced, and the sliding plug opens the powder falling channel.
In order to enable the action of closing the powder falling channel by the sliding plug to be earlier than brewing, the opening pressure of the second one-way valve is smaller than that of the first one-way valve. Therefore, the water flow output by the water pump gradually rises along with the water pressure, the second one-way valve is opened earlier than the first one-way valve, and the action of closing the powder falling channel by the sliding plug is earlier than brewing.
For convenience of control, the brewing cavity is positioned at the powder receiving position and the pressure relief valve is opened during powder receiving, and the brewing cavity is positioned at the brewing position and the pressure relief valve is closed during brewing. Therefore, when the water pump works, the opening and the closing of the pressure relief valve are controlled to control the sliding plug to open or close the powder falling channel.
In order to close the powder falling channel for a long time, the pressure relief valve is closed and the water pump is started during the shifting period of the brewing cavity from the powder receiving position to the brewing position. The pressure release valve is kept closed and the water pump is stopped during the displacement of the brewing cavity from the brewing position to the powder receiving position.
Because the coffee powder flows away when the brewing cavity receives the powder, the outlet of the pressure release valve is connected to the brewing plug for flushing the brewing plug or/and the brewing cavity at proper time, and the water return box is arranged below the brewing cavity and used for recovering water flow after flushing by the water return box.
Or the outlet of the pressure relief valve is directly connected to the water return box and is recovered by the water return box.
In order to simplify the structure, the powder falling channel comprises a vertical channel, the sliding plug is positioned above the upper port of the vertical channel, and the sliding plug is configured to slide downwards to close the upper port of the vertical channel and slide upwards to open the upper port of the vertical channel. The powder falling channel comprises a transverse channel, and the transverse channel is connected with the upper port of the vertical channel and the bean grinding chamber.
In order to facilitate control of the pressure relief valve, the pressure relief valve is an electric control valve, such as an electric stop valve, a two-position two-way electromagnetic valve and the like.
In order to facilitate the brewing cavity to change positions between the powder receiving position and the brewing position and to receive coffee powder and brew, the brewing cavity is positioned below the powder falling channel when positioned at the powder receiving position, and the brewing cavity is positioned below the brewing plug when positioned at the brewing position. Thus, the brew chamber may receive coffee grounds that fall by gravity and facilitate compaction of the coffee grounds in the brew chamber by the brew plug.
According to the invention, the sliding plug is arranged in the powder falling channel, and the back side of the sliding plug is connected with the water pump through the second water path; and the brewing cavity is positioned in the powder receiving position for receiving the powder, and the elastic force of the elastic element is used for promoting the sliding plug to move to open the powder falling channel; the brewing cavity is positioned in the brewing position during brewing, the water pump conveys water to the brewing cavity through the first water path and conveys water to the back side of the sliding plug through the second water path, and the water pressure borne by the back side of the sliding plug overcomes the elastic force of the elastic element to drive the sliding plug to move and close the powder falling channel, so that the communication between the bean grinding chamber and the outside through the powder falling channel is blocked.
Therefore, the sliding plug can be controlled to slide at proper time, the powder falling channel is opened in the powder receiving process of the brewing cavity, and the powder falling channel is closed when the brewing cavity is positioned at the brewing position, so that the time for communicating the bean grinding chamber with the outside through the powder falling channel is reduced, and the moisture in the coffee machine and the steam generated by the bean grinding chamber are prevented from entering the bean grinding chamber through the powder falling channel as much as possible. Therefore, the function of isolating water vapor of the bean grinder is realized, and the water vapor is prevented from entering the bean grinding chamber through the powder falling channel.
According to the method, the water pump is connected to the back side of the sliding plug through the pipeline to provide water pressure for the back side of the sliding plug, the sliding plug is driven to move to close the powder falling channel by the pressure of water flow conveyed by the water pump of the coffee machine, an additional power part is not needed to be added, the structure is simple, the action is flexible, the control is easy, and the manufacturing cost is controlled.
Drawings
FIG. 1 is a schematic view of a coffee maker of the present invention;
FIG. 2 is a schematic view of a bean grinder of the present invention;
FIG. 3 is a schematic view of the brewing chamber of the present invention in the powder receiving position with the sliding plug opening the powder falling channel;
FIG. 4 is a schematic view of the brewing chamber of the present invention in the brewing position with the plunger closing the powder drop passage;
FIG. 5 is a schematic view of the flow direction of the water path of the coffee maker of the present invention in the brewing chamber at the powder receiving position;
FIG. 6 is a schematic view of the flow of water in the brewing chamber of the coffee maker of the present invention in the brewing position;
the reference numbers in the figures illustrate:
100 water tanks;
200 water pump, 201 first one-way valve, 202 heater, 203 safety valve, 204 water return box, 205 pressure relief valve, 206 second one-way valve, 207 flowmeter, 208 first water path, 209 second water path;
300 a brewing chamber;
400 brewing plug;
500 bean grinder:
501 bean grinding chamber, 502 first grinding wheel, 503 second grinding wheel, 504 powder falling channel, 505 vertical channel, 506 horizontal channel, 507 sliding plug, 508 elastic element, 509 cylinder;
600 soaking device;
700 a fuselage;
800 a coffee outlet;
900 coffee cup.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention are intended to cover a non-exclusive inclusion, such that a method or article of manufacture that comprises a list of features does not have to be limited to those features expressly listed, but may include other features not expressly listed that may be included in the method or article of manufacture.
In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the technical features defined by the terms "first", "second", etc. have sequential concepts, only in order to clearly describe the defined technical features, so that the defined technical features can be clearly distinguished from other technical features, and do not represent such naming in actual practice, and thus, should not be construed as limiting the present invention.
The present invention will be described in detail with reference to the following embodiments and accompanying drawings.
Fig. 1, 5, 6 show a coffee maker comprising a water tank 100, a water pump 200, a brew chamber 300, a brew plug 400, and a bean grinder 500 as shown in fig. 2-4. Wherein the brewing chamber 300 may be directly embodied as a brewer or may be assembled to a frame-like structure to form a brewer, the brewer 600 may be removed from the body 700 shown in fig. 1 for cleaning. The brewing chamber 300 is configured to be shifted between a powder receiving position and a brewing position, the brewing chamber 300 is located below the powder falling channel 504 when located in the powder receiving position as shown in fig. 3 and 5, and the brewing chamber 300 is located below the brewing plug 400 when located in the brewing position as shown in fig. 6.
The bean grinder 500 is shown in fig. 2-4, and comprises a bean grinding chamber 501, and a first grinding wheel 502 and a second grinding wheel 503 which are positioned in the bean grinding chamber 501, wherein the bean grinding chamber 501 extends outwards to form a powder falling channel 504, the powder falling channel 504 comprises a vertical channel 505 and a transverse channel 506, the transverse channel 506 is connected with the upper port of the vertical channel 505 and the bean grinding chamber 501, and the transverse channel 506 is short so that coffee powder in the bean grinding chamber can pass through and fall into the vertical channel as soon as possible. The powder falling passage 504 is provided with a sliding plug 507, the sliding plug 507 is configured to bear water pressure at the back side so as to slide towards the powder falling passage under the action of the water pressure to close the powder falling passage, thereby blocking the communication between the bean grinding chamber and the outside through the powder falling passage, and an elastic element 508 such as a spiral pressure spring is acted on the sliding plug 507 and used for enabling the sliding plug to slide towards the direction far away from the powder falling passage when the water pressure acted on the back side of the sliding plug is reduced so as to open the powder falling passage, thereby communicating the bean grinding chamber with the outside through the powder falling passage. Specifically, the sliding plug 507 is located above the upper port of the vertical channel 505 and is sealingly fitted within the cylinder 509, the elastic element 508 exerts an upward elastic force on the sliding plug 5070, and the sliding plug 507 is configured to slide downward to close the upper port of the vertical channel 505 and slide upward to open the upper port of the vertical channel.
The output of the water pump 200 is connected to the brewing chamber 300 via a first water path 208. The first water channel 208 is provided with a first one-way valve 201 for controlling the water flow in the first water channel from the water pump to the brewing cavity, the opening pressure of the first one-way valve 201 is set to be 3bar (3 bar), and the first water channel 208 is also provided with a heater 202 for heating the water flow flowing through. The first water passage 208 is connected to the safety valve 203, and when the water pressure exceeds a predetermined level, the water is discharged through the safety valve and flows to the return box 204. In this embodiment, the hot water flows into the brewing chamber 300, extracts coffee, flows out through the brewing plug 400, and finally flows into the coffee cup 900 from the coffee outlet 800. In other embodiments, the output end of the water pump can be connected to the brewing plug through the first water path, when coffee is brewed, hot water flows into the brewing cavity through the brewing plug, coffee is extracted and then flows out through the brewing cavity, and finally flows into the coffee cup from the coffee outlet.
The output end of the water pump 200 is connected to the back side of the spool 507 via a second waterway 209. The second water passage 209 is provided with a relief valve 205 and a second check valve 206 for controlling the flow of water in the second water passage from the water pump to the back side of the spool, and the opening pressure of the second check valve 206 is set to 1bar (1 bar). A second waterway 209 is connected to an upper end of the cylinder 509. The outlet of the pressure relief valve 205 is connected to the brewing plug 400 for flushing the brewing plug or/and the brewing chamber, and a water return box 204 is arranged below the brewing chamber 300. In other embodiments, the outlet of the pressure relief valve may be directly connected to the return water box. The pressure relief valve 205 is an electrically controlled valve, illustrated as a two-position two-way solenoid valve, and may be an electric shutoff valve in specific implementation.
When the water pump 200 is operated, the pressure relief valve 205 is closed, and the flowing water from the water pump has a certain pressure to act on the upper end surface of the sliding plug 507, so that the downward pressure is exerted on the sliding plug 507, and the downward pressure is larger than the elastic force of the elastic element 508 to promote the sliding plug to slide downwards and close the upper port of the vertical channel 505 with a certain contact force. In this state, the presence of the second check valve 206 prevents the water pressure in the cylinder 509 from being lowered even if the water pump stops operating, and therefore the spool can be held at this position.
If the pressure relief valve 205 is opened, water from the water pump flows out through the pressure relief valve 205, and the water pressure is not enough to cause the sliding plug to slide downwards and close the upper port of the vertical channel 505 with a certain contact force. The sliding plug 507 opens the upper port of the vertical channel 505 by the elastic force of the elastic member 508.
Therefore, by controlling the water pump 200 to work and timely opening the pressure relief valve 205, the sliding plug 507 can be controlled to move, and the position of the sliding plug is changed to open or close the vertical channel.
In the coffee machine, when the coffee machine is stopped, the water pump 200 does not work, the first water path 208 and the second water path 209 do not have water flow, the sliding plug 507 is in a state shown in fig. 3 under the action of the elastic force of the elastic element 508, and the upper port of the vertical channel 505 is opened.
When the coffee maker is in operation, the brewing chamber 300 is switched between the powder receiving position and the brewing position.
The brewing chamber 300 is located below the powder falling channel 504 when located at the powder receiving position as shown in fig. 3 and 5, and is used for receiving coffee powder falling from the powder falling channel, and the water pump 200 is not operated.
When the brewing chamber 300 is located at the brewing position as shown in fig. 6, the brewing chamber is located below the brewing plug 400 and keeps working relation with the brewing plug 400, the water pump 200 works, water at the outlet of the water pump 200 sequentially flows through the first check valve 201 and the heater 202 through the first water path 208 and then enters the brewing chamber 300, and the heated water flows extract coffee powder to form coffee beverage, and finally flows into the coffee cup 900 through the coffee outlet 800. The water flow from the water pump 200 also applies pressure to the sliding plug 507 through the second water path 209, so that the sliding plug 507 is in the state shown in fig. 4 and 6, the upper port of the vertical channel 505 is closed, and water vapor can be isolated. Thereafter, when the brewing chamber 300 is reset to the powder receiving position to receive coffee powder as shown in fig. 3 and 5, the pressure relief valve 205 is opened, the water pressure on the back side of the sliding plug 507 is reduced, and the sliding plug 507 slides upwards to open the upper port of the vertical channel 505. Therefore, during the period from the stop of the water pump to the opening of the pressure relief valve, the sliding plug still closes the vertical channel under the action of the water pressure at the back side of the sliding plug.
The coffee machine has the following process of brewing a cup of coffee:
(1) Powder receiving: the brewing chamber 300 is positioned at the powder receiving position for receiving powder as shown in fig. 5, during which the water pump does not deliver water, and the elastic force of the elastic element 508 causes the sliding plug 507 to move to open the powder falling channel 504;
(2) Transposition: after the brewing cavity 300 receives the powder, the brewing cavity moves from the powder receiving position to the brewing position;
(3) Brewing: in the brewing position, the coffee powder in the brewing cavity 300 is compacted by the brewing plug 400, then the water pump 200 delivers water, the pressure release valve 205 is closed, the water flow in the second water path 209 causes the sliding plug 507 to close the powder falling channel, the water flow in the first water path 208 is heated by the heater and then extracts and brews the coffee powder in the brewing cavity, and the obtained coffee beverage flows into the coffee cup through the coffee outlet;
(4) Resetting: after brewing, the water pump stops delivering water, the pressure release valve is opened, the brewing cavity 300 is moved from the brewing position to the powder receiving position (reset), the coffee powder cake extracted and brewed in the brewing cavity is moved out of the worm brewing cavity, and the sliding plug moves to open the powder falling channel 504.
In other embodiments, the pressure relief valve 205 may be closed and the water pump may be activated during step (2) to close the dusting path earlier. It is also possible to stop the water pump and keep the pressure relief valve 205 closed during step (4), thereby closing the powder drop channel during the reset of the brewing chamber.
Claims (12)
1. The water vapor isolation method of the coffee machine is characterized in that:
a powder falling channel (504) extends outwards from a bean grinding chamber (501) of the coffee machine, a sliding plug (507) is configured for the powder falling channel, and the back side of the sliding plug (507) is connected with a water pump (200) through a second water channel (209);
when the brewing cavity (300) is positioned at the powder receiving position for receiving powder, the sliding plug (507) is driven to move by the elastic force of the elastic element (508) to open the powder falling channel (504);
during the brewing period of the brewing cavity (300) at the brewing position, the water pump (200) conveys water to the brewing cavity (300) through the first water channel (208) and conveys water to the back side of the sliding plug (507) through the second water channel, and the water pressure borne by the back side of the sliding plug (507) overcomes the elastic force of the elastic element (508) to drive the sliding plug (507) to move to close the powder falling channel (504).
2. The moisture insulating method of a coffee maker as set forth in claim 1, wherein: the first water channel (208) is provided with a first one-way valve (201) for controlling the water flow in the first water channel to flow from the water pump (200) to the brewing cavity (300), and the second water channel (209) is provided with a pressure relief valve (205) and a second one-way valve (206) for controlling the water flow in the second water channel to flow from the water pump (200) to the back side of the sliding plug (507).
3. The moisture insulating method of a coffee maker as set forth in claim 2, wherein: the cracking pressure of the second check valve (206) is smaller than that of the first check valve (201).
4. A moisture insulating method of a coffee maker according to claim 2 or 3, wherein: the brewing cavity (300) is positioned at the powder receiving position and opens the pressure release valve (205) during powder receiving, and the brewing cavity (300) is positioned at the brewing position and closes the pressure release valve (205) during brewing.
5. The moisture insulating method of a coffee maker as set forth in claim 4, wherein: the brewing cavity (300) closes the pressure release valve (205) and starts the water pump during the transposition period from the powder receiving position to the brewing position.
6. The moisture insulating method of a coffee maker as set forth in claim 4, wherein: the pressure relief valve (205) is kept closed and the water pump is stopped during the shifting of the brewing cavity (300) from the brewing position to the powder receiving position.
7. The moisture insulating method of a coffee maker as set forth in claim 2, wherein: an outlet of the pressure release valve (205) is connected to the brewing plug (400) and used for flushing the brewing plug or/and the brewing cavity at proper time, and a water return box (204) is arranged below the brewing cavity (300).
8. The moisture insulating method of a coffee maker as set forth in claim 2, wherein: an outlet of the pressure relief valve (205) is connected to the water return box (204).
9. The moisture insulating method of a coffee maker as set forth in claim 1, wherein: the powder falling channel (504) comprises a vertical channel (505), the sliding plug (507) is positioned above the upper port of the vertical channel (505), and the sliding plug (507) is configured to slide downwards to close the upper port of the vertical channel and slide upwards to open the upper port of the vertical channel.
10. The moisture insulating method of a coffee maker as set forth in claim 9, wherein: the powder falling channel (504) comprises a transverse channel (506), and the transverse channel (506) is connected with the upper port of the vertical channel (505) and the bean grinding chamber (501).
11. The moisture insulating method of a coffee maker as set forth in claim 1, wherein: the pressure relief valve (205) is an electric control valve.
12. The moisture insulating method of a coffee maker as set forth in claim 1, wherein: the brewing cavity (300) is positioned below the powder falling channel (504) when the powder receiving position is positioned, and the brewing cavity (300) is positioned below the brewing plug (400) when the brewing position is positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211622669.5A CN115778184A (en) | 2022-12-16 | 2022-12-16 | Water vapor isolation method of coffee machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211622669.5A CN115778184A (en) | 2022-12-16 | 2022-12-16 | Water vapor isolation method of coffee machine |
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| Publication Number | Publication Date |
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| CN115778184A true CN115778184A (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211622669.5A Pending CN115778184A (en) | 2022-12-16 | 2022-12-16 | Water vapor isolation method of coffee machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116530851A (en) * | 2023-05-10 | 2023-08-04 | 山东睿控电气有限公司 | Soybean milk machine |
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2022
- 2022-12-16 CN CN202211622669.5A patent/CN115778184A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116530851A (en) * | 2023-05-10 | 2023-08-04 | 山东睿控电气有限公司 | Soybean milk machine |
| CN116530851B (en) * | 2023-05-10 | 2024-01-12 | 山东睿控电气有限公司 | Soybean milk machine |
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