WO2016173432A1 - 一种咖啡机及其工作方法 - Google Patents

一种咖啡机及其工作方法 Download PDF

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Publication number
WO2016173432A1
WO2016173432A1 PCT/CN2016/079705 CN2016079705W WO2016173432A1 WO 2016173432 A1 WO2016173432 A1 WO 2016173432A1 CN 2016079705 W CN2016079705 W CN 2016079705W WO 2016173432 A1 WO2016173432 A1 WO 2016173432A1
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WO
WIPO (PCT)
Prior art keywords
guiding channel
flow guiding
liquid
brewing chamber
coffee
Prior art date
Application number
PCT/CN2016/079705
Other languages
English (en)
French (fr)
Inventor
周林斌
王学斌
Original Assignee
广州康宏电器有限公司
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Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=55461096&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2016173432(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 广州康宏电器有限公司 filed Critical 广州康宏电器有限公司
Publication of WO2016173432A1 publication Critical patent/WO2016173432A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/58—Safety devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/4403—Constructional details
    • A47J31/4407—Lids, covers or knobs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/42—Beverage-making apparatus with incorporated grinding or roasting means for coffee
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F5/00—Coffee; Coffee substitutes; Preparations thereof
    • A23F5/08—Methods of grinding coffee
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F5/00—Coffee; Coffee substitutes; Preparations thereof
    • A23F5/24—Extraction of coffee; Coffee extracts; Making instant coffee
    • A23F5/26—Extraction of water-soluble constituents
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/06—Filters or strainers for coffee or tea makers ; Holders therefor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/24—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/4403—Constructional details
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices

Definitions

  • the present invention relates to the field of beverage preparation equipment, and more particularly to a coffee machine for brewing coffee and a method of operating the same.
  • the second cover of the existing coffee machine is generally covered by gravity on the brewing chamber, and there is a gap between the second cover and the brewing chamber, so that the coffee particles in the brewing chamber are brewed from the gap with the steam. In the middle.
  • the escaping coffee particles can contaminate other parts of the coffee machine located outside the brewing chamber, making the coffee machine difficult to clean.
  • the main body of a conventional coffee machine and the first cover for covering the main body opening are not completely separable.
  • a first cover is usually a flip cover which is fixed at one end to the main body of the coffee machine.
  • Coffee machines usually also have a water tank, a heating device, a brewing chamber, and the like.
  • the brewing chamber has a brewing chamber opening at the top to allow the coffee powder to be placed into the brewing chamber through the brewing chamber opening to brew the coffee.
  • Some coffee machines have a grinding unit in the brewing chamber, and other coffee particles such as coffee beans can be placed in the brewing chamber through the opening of the brewing chamber.
  • the brewing chamber opening corresponds to the main body opening, and the flow guiding device generally comprises a draft tube.
  • the first cover body is also generally fixedly connected to the draft tube as part of the flow guiding device, and the liquid heated by the heating device flows into the diversion from the heating device.
  • the tube passes through the first cover body and flows to the opening of the brewing chamber and enters the brewing chamber from the opening of the brewing chamber. Since the first cover body is fixedly connected to the air guiding tube, at least one end of the first cover body is fixed and cannot be completely separated from the main body, thereby causing inconvenience in cleaning the coffee machine, particularly the first cover body.
  • Some coffee machines have a grinding filter that includes the brewing chamber and grinding assembly mentioned above.
  • the side of the brewing chamber of such a coffee machine is provided with a filter, and the coffee particles are ground and brewed and filtered in the brewing chamber.
  • the grinding filter of such a coffee machine does not filter well because the particles in the coffee liquid deposit the bottom due to gravity, resulting in a lower concentration of liquid flowing out of the filter at the side of the brewing chamber.
  • the liquid at the bottom of the brewing chamber is difficult to discharge from the filter due to mixing with the particles at the bottom of the deposit, so that some of the liquid and coffee particles remain in the bottom of the brewing chamber, causing waste.
  • an object of the present invention is to enable the second cover body and the brewing chamber.
  • a coffee machine that forms a relatively sealed seal prevents coffee particles in the brewing chamber from escaping from the gap between the second cover and the brewing chamber as the brewing brews.
  • a coffee machine comprising a main body, a first cover body, a brewing chamber, a water tank and a heating device, wherein the brewing chamber, the water tank and the heating device are disposed in the main body, and the main body is provided with a main body opening
  • the first cover is configured to cover the main body opening
  • the coffee machine further includes a second cover for covering the opening of the brewing chamber, and the second cover is elastically disposed on the first cover
  • the underside of the body forms a relative seal between the second cover and the brewing chamber when the first cover is fixed to the main body.
  • the coffee particles in the brewing chamber do not escape from the gap between the second lid and the brewing chamber with the steam, thereby preventing the coffee particles from contaminating the brewing chamber.
  • Other parts of the coffee machine are not limited to the relative sealing between the second cover and the brewing chamber.
  • the first cover body and/or the body is provided with a fixing member for fixing the first cover body to the main body, and an elastic member is disposed between the first cover body and the second cover body, so that When the first cover is fixed to the main body, a relative seal is formed between the second cover and the brewing chamber.
  • the elastic member is compressed to generate an elastic force to press the second cover body against the brewing chamber, so that the second cover body forms a relative seal with the brewing chamber, thereby preventing brewing.
  • the coffee particles in the cavity escape with the vapor from the gap between the second cover and the brewing chamber.
  • the coffee machine further includes a flow guiding device, the flow guiding device includes a first flow guiding channel, the first end of the first guiding channel is in communication with the heating device, and the brewing chamber is provided with the first The second end of the flow guiding channel corresponds to the brewing chamber through hole, and the second end of the first guiding channel is inserted into the brewing chamber through the brewing chamber through hole.
  • the flow guiding device can direct the heated liquid from the heating device into the brewing chamber for brewing coffee.
  • the liquid in the heating device is heated to expand to generate pressure, and the liquid enters the first flow guiding passage and flows from the first end of the first guiding passage to the second end of the first guiding passage and enters the brewing chamber.
  • the first cover body may not be used for diversion, and does not need to be connected to the first flow guiding channel, thereby allowing the first cover body to be completely separated from the main body, and facilitating cleaning of the first cover body.
  • the coffee machine further includes a flow guiding device, the flow guiding device comprising a first guiding channel and a second guiding channel detachably connected to the first guiding channel, the first guiding channel One end is in communication with the heating device, the first cover body is provided with the second flow guiding channel, the second guiding channel has a water inlet and a water outlet, and the water outlet is located corresponding to the opening of the brewing chamber The position is to supply liquid to the brewing chamber.
  • a flow guiding device comprising a first guiding channel and a second guiding channel detachably connected to the first guiding channel, the first guiding channel One end is in communication with the heating device, the first cover body is provided with the second flow guiding channel, the second guiding channel has a water inlet and a water outlet, and the water outlet is located corresponding to the opening of the brewing chamber The position is to supply liquid to the brewing chamber.
  • the guiding device can allow the first cover provided with the second guiding channel to be separated from the first guiding channel, and further, it can be provided Second circulation
  • the first cover of the track is separated from the main body to facilitate cleaning of the first cover.
  • the first cover body is internally provided with a cavity, the cavity is provided with the water inlet and the water outlet, and the water inlet and the water outlet are in fluid communication and form a first a second flow guiding channel, wherein the second end of the first flow guiding channel is detachably connected to the water inlet, and the water outlet is located at a position corresponding to the opening of the brewing chamber to supply liquid to the brewing chamber.
  • the first flow guiding channel when the first flow guiding channel is connected to the second flow guiding channel, the liquid flowing out from the first guiding channel directly enters the cavity from the water inlet and flows out from the water outlet, and finally Enter the brewing chamber.
  • the first cover body is detachably engaged with the main body, the first cover body includes a first upper cover body and a first lower cover body, and the first upper cover body and the first lower cover body are engaged The first upper cover and the first lower cover are formed into the cavity.
  • a cavity channel is provided in the cavity, and the water inlet and the water outlet are respectively in fluid communication with the cavity channel and form a second flow guiding channel.
  • the liquid flowing out from the first guiding channel directly enters the cavity channel from the water inlet and flows out from the water outlet. Finally enter the brewing chamber.
  • the first cover body is internally provided with a cavity
  • the second flow guiding channel comprises a first pipe portion communicating with the cavity
  • the first pipe portion is provided with
  • the cavity is provided with the water outlet
  • the water inlet is in fluid communication with the water outlet and forms a second flow guiding channel
  • the second end of the first guiding channel and the first tube The water inlet of the portion is detachably connected
  • the water outlet of the cavity is located at a position corresponding to the opening of the brewing chamber to supply liquid to the brewing chamber.
  • the first cover body is detachably engaged with the main body, the first cover body includes a first upper cover body and a first lower cover body, and the first upper cover body and the first lower cover body are engaged The first upper cover and the first lower cover are formed into the cavity.
  • a cavity channel is provided in the cavity, and the water inlet and the water outlet are respectively in fluid communication with the cavity channel and form a second flow guiding channel.
  • the liquid flowing out from the first guiding flow passage sequentially enters the first pipe portion and the cavity passage, and enters the brewing chamber from the water outlet of the cavity.
  • the first cover body is internally provided with a cavity
  • the second flow guiding channel comprises a first pipe portion and a second pipe portion
  • the first pipe portion is provided with the inlet a water outlet
  • the second pipe portion is provided with the water outlet
  • the water inlet and the water outlet are respectively in fluid communication with the cavity and form a second flow guiding channel
  • the second flow guiding channel is at a second end Separably connected to the water inlet of the first pipe portion
  • the water outlet of the second pipe portion is located at a position corresponding to the opening of the brewing chamber to supply liquid to the brewing chamber.
  • the first cover body is detachably engaged with the main body, the first cover body includes a first upper cover body and a first lower cover body, and the first upper cover body and the first lower cover body are engaged The first upper cover and the first lower cover are formed into the cavity.
  • a cavity channel is provided in the cavity, and the water inlet and the water outlet are respectively in fluid communication with the cavity channel and form a second flow guiding channel.
  • the liquid flowing out from the first guiding channel sequentially enters the first tube portion, the cavity channel and the second tube portion, and from the second The tube portion enters the brewing chamber.
  • the second cover body is provided with a second cover body through hole, and the second cover body through hole is disposed at a position corresponding to the water outlet of the second flow guiding channel for the second flow guiding The liquid in the passage flows into the body through the second cover through hole.
  • the first cover is provided with one or more first exhaust holes
  • the second cover is provided with one or more second exhaust holes, the first exhaust holes and The second exhaust hole is in communication.
  • the heated liquid enters the brewing chamber to brew coffee
  • steam is generated in the brewing chamber
  • the second exhaust hole helps to discharge the steam out of the brewing chamber, and the steam is further discharged through the first exhaust hole. outer.
  • the second venting opening has a diameter of less than 2 mm.
  • the second venting opening has a diameter of less than 1 mm.
  • the water inlet and the second end of the first flow guiding channel are detachably connected within the body, the coffee machine further comprising a blocking device, the blocking device being disposed at the first guiding flow a position corresponding to the second end of the channel to be deformable when the first flow guiding channel is separated from the second flow guiding channel to block the liquid Spray the body opening. If the first flow guiding channel and the second flow guiding channel are separated during the heating device guiding the flow device to supply the heated liquid, the heated liquid is ejected from the second end of the first guiding channel to the outside of the body due to the pressure. May cause a safety incident. In order to eliminate this safety hazard, it is necessary to set the blocking device.
  • the blocking device is a resilient component
  • the first end of the elastic component is elastically disposed at a position corresponding to the second end of the first flow guiding channel, and the second end of the elastic component is capable of surrounding the elastic
  • the first end of the assembly is elastically deformed to deform.
  • the elastic component includes a rotatable baffle, and the first end of the baffle may be disposed to be rotatably connected with the main body, and a spring is disposed between the baffle and the main body, and the first end of the baffle passes the spring
  • the elastic portion is disposed at a position corresponding to the second end of the first flow guiding passage, and the second end of the baffle is elastically deformed and deformed around the first end of the baffle.
  • the first pipe portion pushes the baffle to rotate the second end of the baffle from the first position (horizontal position) around the first end of the baffle Moving to the second position (vertical position), when the first end of the first flow guiding channel is separated from the first tube portion of the second guiding channel, the spring provides an elastic force to cause the second end of the baffle to be from the second position (vertical Position) moving around the first end of the baffle to a first position (horizontal position) to block liquid flowing from the second end of the first flow guiding channel.
  • the blocking device is an elastic single piece
  • the middle portion of the elastic single piece is provided with at least one slit
  • the elastic single piece is deformed by extrusion so that the slit is opened.
  • the first tube portion presses the elastic single piece to open the slit so that the first tube portion is connected to the first flow guiding passage through the elastic single piece.
  • the second end of the first flow guiding channel is separated from the first tube portion of the second flow guiding channel, the first tube portion is pulled away from the slit, and the slit is closed, thereby blocking the liquid from being ejected from the outside of the body.
  • the middle portion of the elastic single piece is provided with at least two mutually intersecting slits, and the elastic single piece is deformed by the extrusion energy so that The incision is open.
  • the body is internally provided with a return passage that communicates with the upper portion of the water tank and the first flow guiding passage, respectively, so that at least part of the liquid that is blocked by the blocking device when the first cover is separated from the main body enters The return channel flows to the water tank.
  • the second end of the first flow guiding channel is sleeved into the first tube portion of the second guiding channel, and the second end of the first guiding channel has a closed top, the first guiding a side wall of the second end of the flow channel is provided with a side wall water outlet, and a gap is formed between the side wall water outlet and the first pipe portion so that liquid is discharged from the side wall The nozzle flows into the second flow guiding channel.
  • the liquid When the second end of the first flow guiding channel is separated from the first pipe portion, the liquid is blocked by the top of the second end of the first guiding channel, and can only be ejected from the water outlet of the side wall, because the water outlet of the side wall is not oriented
  • the body is open, so that the liquid does not eject out of the body when the first flow guiding channel is separated from the first pipe portion of the second flow guiding channel.
  • the main body is provided with a return passage, and the return passage is respectively communicated with the upper portion of the water tank and the first flow guiding passage so as to be separated from the side wall when the first flow guiding passage is separated from the second guiding flow passage At least a portion of the liquid flowing out of the nozzle enters the return passage and flows to the water tank.
  • the coffee machine further includes a grinding filter device comprising: a cavity for containing liquid and coffee particles; a grinding assembly for grinding coffee particles; and an abrasive assembly for driving a drive mechanism for the abrasive assembly; and a first filter for filtering coffee liquid in the cavity, the cavity being provided with a cavity opening, at least a portion of the abrasive assembly being disposed within the cavity, the cavity including the rush a bubble chamber, wherein the brewing chamber is provided with a brewing chamber opening, the bottom portion of the brewing chamber is provided with a liquid passage communicating with the brewing chamber, and the first filter is partially or wholly located at the bottom of the brewing chamber, the liquid The channel is located on the underside of the first filter such that the coffee liquid in the brewing chamber flows through the first filter before entering the liquid passage.
  • a grinding filter device comprising: a cavity for containing liquid and coffee particles; a grinding assembly for grinding coffee particles; and an abrasive assembly for driving a drive mechanism for the abrasive assembly
  • the coffee liquid is more easily filtered by gravity from the first filter partially or entirely at the bottom of the brewing chamber, which helps the coffee liquid to escape and prevents coffee from remaining in the brewing chamber.
  • the coffee liquid forms a flow in the brewing chamber to the bottom of the brewing chamber due to gravity, making it easier to discharge from the first filter at the bottom of the brewing chamber and facilitating the rapid dissolution of the coffee particles located in the brewing chamber to form A higher concentration of coffee liquid.
  • the grinding assembly includes a blade and a cutter shaft, the cutter shaft passes through the bottom of the brewing chamber, and one end of the cutter shaft located in the brewing chamber is connected to the blade, and is located outside the brewing chamber.
  • One end of the cutter shaft is coupled to the drive mechanism such that the drive mechanism drives the blade to rotate through the cutter shaft to grind the coffee particles in the brewing chamber.
  • the rotation of the blade can grind the coffee particles to change the coffee granules from a first size to a second size, wherein the second size is smaller than the first size.
  • the liquid enters the brewing chamber and is mixed with ground coffee particles (second size coffee granules) to form a coffee liquid.
  • the rotating blade can agitate the coffee liquid to accelerate the dissolution of the coffee granules.
  • the bottom of the liquid passage is provided with a liquid passage water valve for controlling the discharge of coffee liquid in the liquid passage.
  • the liquid channel water valve can be opened to allow the coffee liquid to flow out of the coffee machine for people to enjoy.
  • the liquid channel water valve can be closed to stop the coffee liquid from flowing out of the coffee machine. This makes coffee not wasted.
  • the chamber further includes a collection chamber that communicates with the brewing chamber through the liquid passage such that the filtered coffee liquid flows into the collection chamber through the liquid passage.
  • the collection chamber can store the filtered coffee liquid. Since it takes a certain time for the coffee liquid to be filtered, the coffee liquid flowing out of the brewing chamber may have a lower concentration, and the coffee liquid flowing out of the brewing chamber has a higher concentration because it has more time to dissolve the coffee particles. A lower concentration of coffee liquid and a higher concentration liquid are mixed in the collection chamber to obtain a suitable concentration of coffee liquid.
  • the bottom of the collection chamber is provided with a collection chamber water valve for controlling the discharge of liquid from the collection chamber.
  • the collection chamber water valve can be opened to allow coffee liquid to flow out of the coffee machine for people to enjoy.
  • the collection chamber water valve can be closed to stop the flow of coffee liquid from the coffee machine. This makes coffee not wasted.
  • the collection chamber is provided with a second filter for filtering liquid entering the collection chamber, the second filter being arranged such that the coffee liquid entering the collection chamber flows through the second filter before flowing to the collection chamber water valve .
  • the second filter can perform a second filtration of the coffee liquid to further remove the residue from the coffee liquid to obtain a coffee with a better mouthfeel. Since the coffee liquid entering the collection chamber has been filtered by the first filter, the coffee particles in the coffee liquid are less likely to deposit on the bottom, so the second filter may not be disposed at the bottom of the collection chamber.
  • the second filter may optionally be placed anywhere in the collection chamber of the second filter prior to flowing the coffee liquid entering the collection chamber to the collection chamber water valve.
  • the bottom surface of the first filter is higher than the inner bottom surface of the collection chamber.
  • the collection chamber and the brewing chamber are arranged side by side. Since the bottom surface of the first filter is higher than the inner bottom surface of the collection chamber, the difference in height between the two contributes to the flow of liquid through the filter into the collection chamber.
  • the present embodiment describes a solution in which the collection chamber and the brewing chamber are arranged side by side, it is apparent that when the collecting chamber is located on the lower side of the brewing chamber, liquid can easily flow through the filter into the collecting chamber, and thus in other embodiments
  • the middle collection chamber can also be placed on the underside of the brewing chamber.
  • the thickness of the first filter is set between 0.1 mm and 10 mm.
  • the first filter should not be too thin, otherwise it will be easily damaged during cleaning.
  • the thickness of the first filter is suitably set between 0.1 mm and 10 mm.
  • the thickness of the first filter is set between 0.1 mm and 5 mm, and more preferably, the thickness of the first filter is set between 0.1 mm and 3 mm.
  • the thickness of the second filter is set at Between 0.1 mm and 10 mm.
  • the thickness of the second filter is set between 0.1 mm and 5 mm, and more preferably, the thickness of the second filter is set between 0.1 mm and 3 mm.
  • Another object of the present invention is to provide a method of operating a coffee machine.
  • the working method of the coffee machine comprises the steps of: a. adding liquid to the water tank, adding coffee powder to the brewing chamber; b. fixing the first cover body on the main body opening to cover the main body opening, the second cover body Forming a relative seal with the brewing chamber; c. the tank transports the liquid to the heating device, the heating device heats the liquid; d. the heating device delivers the heated liquid to the brewing chamber, the liquid and the brewing chamber The coffee powder mixes to form a coffee liquid.
  • the first guiding channel is connected to the second guiding channel when the first cover is fixed to the main body opening; and the step d includes the heated liquid sequentially flowing from the heating device to the first guiding The flow channel and the second flow guiding channel flow from the second flow guiding channel into the brewing chamber.
  • step d further includes blocking the liquid from ejecting the body opening when the first flow guiding channel and the second flow guiding channel are separated during the process of supplying water to the flow guiding device by the heating device.
  • step d further includes at least a portion of the liquid blocked by the barrier device entering the return channel to the water tank.
  • the working method of the coffee machine comprises the steps of: a. adding liquid to the water tank, adding coffee powder to the brewing chamber; b. fixing the first cover body on the main body opening to cover the main body opening, the second Forming a relative seal between the cover and the brewing chamber; c. the tank transports the liquid to the heating device, the heating device heats the liquid; d. the heating device delivers the heated liquid to the brewing chamber, the liquid and the brewing The coffee powder in the cavity is mixed to form a coffee liquid.
  • the first guiding channel is connected to the second guiding channel when the first cover is fixed to the main body opening; and the step d includes the heated liquid sequentially flowing from the heating device to the first guiding The flow channel and the second flow guiding channel flow from the second flow guiding channel into the brewing chamber.
  • step d further includes flowing liquid from the side wall outlet into the body when the first flow guiding channel and the second flow guiding channel are separated during the supply of the heating device to the flow guiding device.
  • step d further includes at least a portion of the liquid flowing out of the side wall outlet entering the recirculation when the first flow guiding channel and the second flow guiding channel are separated during the supply of the heating device to the flow guiding device The channel flows to the water tank.
  • the working method of the coffee machine includes the following steps: a. adding liquid to the water tank, adding coffee a granule to the grinding filter device; b. fixing the first cover to the body opening to cover the body opening, the second cover forming a relative seal with the brewing chamber; c. the grinding filter device against the coffee granule Grinding; d.
  • the water tank delivers liquid to the heating device, the heating device heats the liquid; e.
  • the heating device delivers the heated liquid to the grinding filter device, and the liquid is mixed with the ground coffee particles in the grinding filter device to form a coffee liquid; f. the grinding filter device filters the coffee liquid; g. the grinding filter device discharges the filtered coffee liquid.
  • the first guiding channel is connected to the second guiding channel when the first cover is fixed to the main body opening; and the step e includes the heated liquid sequentially flowing from the heating device to the first guiding The flow channel and the second flow guiding channel flow from the second flow guiding channel into the brewing chamber.
  • step d further includes blocking the liquid from ejecting the body opening when the first flow guiding channel and the second flow guiding channel are separated during the process of supplying water to the flow guiding device by the heating device.
  • step d further includes at least a portion of the liquid blocked by the barrier device entering the return channel to the water tank.
  • the working method of the coffee machine comprises the steps of: a. adding liquid to the water tank, adding coffee granules to the grinding filter device; b. fixing the first cover body to the body opening to cover the body opening, the second Forming a relative seal between the cover and the brewing chamber; c. grinding the filter device to grind the coffee particles; d. transporting the liquid to the heating device 3, the heating device heating the liquid; e. heating the device Heating the liquid to a grinding filter device, the liquid being mixed with the ground coffee particles in the grinding filter device to form a coffee liquid; f. the grinding filter device filtering the coffee liquid; g. the grinding filter device is filtering After the coffee liquid is discharged.
  • the first guiding channel is connected to the second guiding channel when the first cover is fixed to the main body opening; and the step e includes the heated liquid sequentially flowing from the heating device to the first guiding The flow channel and the second flow guiding channel flow from the second flow guiding channel into the brewing chamber.
  • step d further includes flowing liquid from the side wall outlet into the body when the first flow guiding channel and the second flow guiding channel are separated during the supply of the heating device to the flow guiding device.
  • step d further includes at least a portion of the liquid flowing out of the side wall outlet entering the recirculation when the first flow guiding channel and the second flow guiding channel are separated during the supply of the heating device to the flow guiding device The channel flows to the water tank.
  • the coffee machine of the present invention has a flow guiding device that can direct liquid to the brewing chamber to brew coffee and can allow the main body of the coffee machine and the first cover to be completely separated, thus facilitating the first cover The body is cleaned.
  • the first filter of the coffee machine of the present invention is partially or entirely located at the bottom of the brewing chamber such that the coffee liquid in the brewing chamber flows through the first filter before flowing into the channel to make it easier to be partially or completely located due to gravity
  • the first filter at the bottom of the brewing chamber is filtered. This helps the coffee liquid to escape and prevent it from remaining in the brewing chamber.
  • the coffee liquid forms a flow in the cavity to the bottom of the brewing chamber due to gravity, making it easier to discharge from the first filter at the bottom of the brewing chamber, and helps the coffee particles located in the brewing chamber to dissolve quickly to form a concentration. High coffee liquid.
  • FIG. 1 is a cross-sectional structural view showing a coffee machine according to Embodiment 1 of the present invention.
  • FIG. 2 is a cross-sectional structural view showing the first cover of the coffee machine according to Embodiment 1 of the present invention separated from the main body;
  • FIG. 3 is a schematic view showing a partial explosion structure of a coffee machine according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic view showing another partial exploded structure of the coffee machine according to Embodiment 1 of the present invention.
  • Figure 5 is a partial schematic structural view of a portion A of Figure 2 in Embodiment 1 of the present invention.
  • FIG. 6 is a schematic exploded view of a coffee machine according to Embodiment 1 of the present invention.
  • Figure 7 is a perspective view showing the main body of the coffee machine of the first embodiment of the present invention completely separated from the first cover;
  • FIG. 8 is a schematic structural view of a first lower cover of a coffee machine according to Embodiment 1 of the present invention covering a main body;
  • Figure 9 is a cross-sectional structural view showing another embodiment of the coffee machine of the first embodiment of the present invention.
  • Figure 10 is a cross-sectional structural view showing a partial coffee machine of the coffee machine in Embodiment 3 of the present invention.
  • Figure 11 is a cross-sectional structural view showing a partial coffee machine of the coffee machine in Embodiment 3 of the present invention.
  • Figure 12 is a cross-sectional structural view showing a single elastic member in Embodiment 3 of the present invention.
  • Figure 13 is a cross-sectional structural view showing a single elastic member in Embodiment 4 of the present invention.
  • Figure 14 is a cross-sectional structural view showing the connection of the first tube portion and the second end of the first flow guiding channel in Embodiment 5 of the present invention.
  • the main body 1, the grinding filter device, the water tank 2, and the heating device 3 are provided.
  • the grinding filter device, the water tank 2, and the heating device 3 are disposed in the main body 1.
  • the main body 1 is provided with a main body opening at the top thereof, and the coffee machine further includes a first cover 6 for covering the main body opening.
  • the abrasive filtration device includes: a cavity 41 for containing liquid and coffee particles; a grinding assembly for grinding coffee particles; a motor 43 coupled to the polishing assembly for driving the polishing assembly; and a coffee liquid for filtering the cavity 41 The first filter 44.
  • the cavity 41 is placed in the main body 1 through the main body opening and is engaged with the main body 1.
  • the cavity 41 includes a brewing chamber 412 and a collecting chamber 413 for brewing.
  • the bottom of the cavity 412 is provided with a liquid passage 411 communicating with the brewing chamber 412 and the collecting chamber 413.
  • the top of the brewing chamber 412 has a brewing chamber opening 416 from which the coffee beans to be ground can be placed into the brewing chamber. 412 is ground.
  • the grinding assembly includes a blade 421 and a cutter shaft 422.
  • the brewing chamber 412 is provided with a mounting hole for mounting the cutter shaft 422.
  • One end of the cutter shaft 422 is mounted on the inner bottom of the brewing chamber 412 and is fixedly coupled to the blade 421.
  • the other end of the cutter shaft 422 extends out of the brewing chamber 412 from the fitting hole and is coupled to the motor 43 by a coupling joint assembly.
  • the cutter shaft 422 is disposed on the assembly hole sleeve with a sleeve 423, and the sleeve 423 and the assembly hole are sealed by a seal ring 424.
  • the lower side of the brewing chamber 412 is provided with a coupling joint assembly corresponding to the grinding assembly, and the coupling joint assembly is composed of an upper coupling joint 431 and a lower coupling joint 432.
  • the arbor 422 is coupled to the upper coupling 431, the lower coupling 432 is sleeved to the motor shaft of the motor 43, and the lower coupling 432 is coupled to the upper coupling 431.
  • the motor 43 drives the cutter shaft 422 and the blade 421 to rotate, and the coffee beans of the brewing chamber are ground to finally become coffee powder.
  • the heating device 3 can provide hot water to the brewing chamber 412, and the coffee powder and hot water mix to form a coffee liquid. The specific brewing process will be described in detail below.
  • the first filter 44 is an annular first filter 44 adapted to the shape of the bottom of the brewing chamber 412.
  • the first filter 44 surrounds the cutter shaft 422 and is laid on the blade.
  • the outer peripheral edge of the first filter net 44 is provided with a handle 441 for taking out the first filter net 44 before cleaning the first filter net 44.
  • the bottom of the brewing chamber 412 is provided with a liquid passage 411 communicating with the brewing chamber 412, so that the coffee liquid in the brewing chamber 412 flows to the liquid passage 411 due to gravity, which causes the inside of the brewing chamber 412.
  • the coffee liquid can be easily placed in the brewing chamber 412
  • the first filter 44 on the inner bottom surface filters and flows into the liquid passage 411.
  • the cavity 41 includes a brewing chamber 412 and a collecting chamber 413.
  • the collection chamber 413 communicates with the brewing chamber 412 through the liquid passage 411, and the coffee liquid filtered by the first filter net 44 flows into the collecting chamber 413 through the liquid passage 411.
  • a collection chamber water valve 414 is provided at the bottom of the collection chamber 413 for controlling the discharge of the coffee liquid in the collection chamber 413.
  • a second filter 415 is disposed in the collection chamber 413, and the second filter 415 is erected and forms a wall surrounding the collection chamber water valve 414 in the collection chamber 413, the lower portion of the wall having a plurality of Filter holes.
  • the bottom of the first cover 6 and the bottom surface of the collection chamber 413 sandwich and fix the second filter 415.
  • the cavity 12 may not include the collection chamber 413, and the coffee liquid in the brewing chamber 412 is discharged through the first filter 44 direct liquid passage 411.
  • a liquid passage water valve is provided on the liquid passage 411 as needed to control the discharge of the liquid.
  • the second filter can be placed in the liquid channel 411 to re-filter the coffee liquid.
  • the coffee machine further includes the flow guiding device, and the flow guiding device includes a first guiding channel 51 and a second end 512 of the first guiding channel 51 .
  • the flow guiding device includes a first guiding channel 51 and a second end 512 of the first guiding channel 51 .
  • Separably connected second flow guiding passage 52 the first end 511 of the first guiding flow passage 51 is in communication with the heating device 3, the second guiding flow passage 52 has a water inlet 524 and a water outlet 525, and the water outlet 525 is located A position corresponding to the brewing chamber opening 416 is to supply hot water to the brewing chamber 412.
  • the first cover 6 is detachably engaged with the main body opening, and the first upper cover 61 is fastened to the first lower cover 62 and thus forms between the first upper cover 61 and the first lower cover 62.
  • the cavity 523 is described.
  • the first lower cover body 62 extends downwardly to define a first tube portion 521 and a second tube portion 522 of the second flow guiding passage 52, and the first tube portion 521 and the second tube portion 522 are respectively in communication with the cavity 523.
  • the cavity 523 is provided with a cavity passage 526 having a cavity passage cover 527 and an open top, the cavity passage cover 527 covering the open top to define the flow of hot water through the cavity passage 526 .
  • the water inlet 524 and the water outlet 525 are in fluid communication with the cavity channel 526 and form a second flow channel 52, respectively.
  • the water inlet 524 and the water outlet 525 of the second flow guiding passage 52 are located at the lower ends of the first pipe portion 521 and the second pipe portion 522, respectively.
  • One end of the heating device 3 is in communication with the water tank 2, and the heating device 3 is located on the lower side of the water tank 2, so that water flows from the water tank into the heating device 3 to generate hot water, and a check valve 31 is provided at the junction of the heating device 3 and the water tank 2 to prevent the heating device 3
  • the hot water flows back to the water tank.
  • the first end 511 of the first flow guiding passage 51 communicates with the other end of the heating device 3, and the incoming heating The device 3 forms a pressure to push the hot water to the first end 511 of the first flow guiding passage 51 when the water is heated.
  • the hot water enters the second flow guiding channel 52 along the first guiding channel 51, that is, sequentially enters the first tube portion 521, the cavity channel 526 and the second tube portion 522, and finally enters the brewing chamber 412 to be mixed with the coffee powder.
  • Coffee liquid In the present embodiment, in order to accelerate the solution of the coffee powder in the hot water, a nozzle (not shown) is provided at the water outlet 525 of the second pipe portion 522 so that the liquid is injected into the brewing chamber 412 through the punch nozzle. Since the first tube portion 521 communicates with the cavity 523 of the first cover body 6, when the first cover body 6 is removed from the main body 1, the lower end of the first tube portion 521 is withdrawn from the first flow guiding passage 51.
  • This operation may cause a danger when the flow guiding device delivers hot water to the brewing chamber 412 because the hot water delivered by the first flow guiding passage 51 will directly squirt out of the main body 1 due to the water pressure, causing the user to be burnt.
  • the present embodiment further includes a blocking device for blocking the hot water from being discharged outside the main body, the blocking device being an elastic component, and the elastic component including the baffle 71 And a torsion spring 712.
  • the main body 1 is internally provided with a return passage 21 which communicates with the upper portion of the water tank 2 and the first flow guiding passage 51, respectively.
  • the return passage 21 is perpendicular to the first flow guiding passage 51, one end of which communicates with the upper portion of the water tank 2, and the other end of which is a closed end.
  • the upper side wall of the return channel 21 is provided with an upper opening 211 communicating with the main body opening, and the lower side wall is provided with a lower opening 212 communicating with the second end 512 of the first guiding channel 51.
  • the torsion spring 712 is fixed in the return passage 21, and the first end of the baffle 71 is connected to the torsion spring 712, and the second end of the baffle 71 is a free end movable around the first end.
  • the upper opening 211 is downwardly provided with a convex edge 213 which is slightly higher than the first end of the baffle 71.
  • the first tube portion 521 of the second flow guiding passage 52 When the first tube portion 521 of the second flow guiding passage 52 is inserted into the upper opening 211 and communicates with the first guiding passage 51, the first tube portion 512 pushes the shutter 71 to move the first end thereof from the first position (horizontal position) To the second position (vertical position) such that the first tube portion 512 is in communication with the second end 512 of the first flow guiding channel 51.
  • the torsion spring 712 provides an elastic force to move the second end of the baffle 71 about its first end to the first position (horizontal position) to close the upper opening 211. Therefore, the hot water sprayed from the second end 512 of the first flow guiding passage 51 is blocked by the baffle 71 and returned to the water tank 2 through the return passage 21.
  • the lower side of the first cover 6 is further provided with a second cover 63 for covering the brewing chamber 412, and the first cover 6 and the second cover 63 are provided with elasticity.
  • the piece 633 causes the first cover 6 to be fixed to the main body 1 to form a relative seal between the second cover 63 and the brewing chamber 412.
  • the middle of the second cover 63 is provided
  • the second cover body 631 corresponding to the second tube portion 522 is sleeved on the second tube portion 522 through the second cover body through hole 631.
  • the edge of the second cover 63 is provided with a convex portion, the convex portion is provided with a first oblique side, and the edge of the brewing chamber opening 416 is provided with a second oblique side corresponding to the first oblique side, when the second cover is When the cover 63 is covered by the brewing chamber opening 416, the first beveled edge and the second beveled edge are joined.
  • the elastic member 633 is a spring 633 which is sleeved on the second tube portion 522 and located between the second cover 63 and the bottom of the first cover 6.
  • the cavity opening protrudes upwardly from the surrounding wall 101, and the surrounding wall 101 protrudes from the main body opening.
  • the side of the first cover 6 is provided with a locking key 611 and a locking 621.
  • the surrounding wall 101 has a corresponding corresponding to the locking 621.
  • the buckle 622 is used to drive the buckle 621 to engage with the buckle 622.
  • the first cover 6 is placed on the main body opening, the lock key 611 is pressed to retract the lock 621 into the first cover 6, and the first cover 6 is pressed toward the inside of the main body 1.
  • the first cover 6 is pressed.
  • the bottom portion extends into the space surrounded by the surrounding wall 101.
  • the outer side wall of the first lower cover body 62 is in contact with the inner wall of the surrounding wall 101, and the latch 621 is extended into the buckle position 622 to be clamped, and the first cover body 6 is thus fixed on the main body 1.
  • the first cover 6 when the first cover 6 is pressed, the first cover 6 pushes the second cover 63 against the brewing chamber opening 416 by the spring 633.
  • the first cover 6 is locked on the main body 1 such that the spring 633 is compressed between the second cover 63 and the first cover 6, and the compressed spring 633 provides an elastic force to the second cover 63 and the brewing chamber 412.
  • the opening is tightly engaged, so that the second cover 63 forms a relative seal with the opening of the brewing chamber 412, preventing the coffee powder from escaping from the gap between the second cover 63 and the opening of the brewing chamber 412 with the steam in the brewing chamber 412. Out.
  • the second cover 63 is provided with a plurality of second exhaust holes 632 for discharging excess steam in the brewing chamber 412 to avoid forming a high pressure in the brewing chamber 412.
  • the second exhaust hole 632 has a diameter of about 0.5 mm, and the second exhaust hole 632 is finely distributed on the second cover 63 so that a part of the second cover 63 forms a mesh structure to prevent the coffee powder from following.
  • a vent hole 632 is discharged.
  • the first cover 6 is provided with a plurality of first exhaust holes 601.
  • the first venting opening 601 is in communication with the second venting opening 632, and the second venting opening 632 discharges a portion of the steam in the brewing chamber 412, which in turn exits the outside of the body through the first venting opening 601.
  • the grinding filter device grinds the coffee particles; d. the water tank 2 delivers the liquid to the heating device 3, the heating device 3 heats the liquid; e. the heating device 3 delivers the heated liquid to the grinding a filtering device, the liquid is mixed with the ground coffee particles in the grinding filter device to form a coffee liquid; f. the grinding filter device filters the coffee liquid; g. the grinding filter device discharges the filtered coffee liquid .
  • step b further includes connecting the first flow guiding passage 51 with the second flow guiding passage 52 when the first cover body 6 is fixed to the main body opening; the step e includes the heated liquid from The heating device 3 sequentially flows into the first flow guiding passage 51 and the second flow guiding passage 52, and flows into the brewing chamber 412 from the second flow guiding passage 52.
  • step d further includes at least a portion of the liquid blocked by the blocking device entering the return passage 21 to the water tank 2.
  • Embodiment 1 is substantially the same as Embodiment 1, except that the structure of the flow guiding device is different.
  • the flow guiding device of the coffee machine of the present embodiment is similar to that shown in FIG. 2, but it does not have the second flow guiding passage 52.
  • the flow guiding device of the coffee machine of this embodiment includes a first flow guiding channel 51.
  • the first end 511 of the first guiding channel 51 communicates with the heating device 3, and the brewing chamber 412 is provided with the first guiding channel 51.
  • the second end 512 of the second end 512 corresponds to the through hole, and the second end 512 of the first flow guiding channel 51 is inserted into the brewing chamber 412 through the through hole of the brewing chamber.
  • the blocking device is a sheet-like elastic single piece 72 fixed to the upper opening 211.
  • the elastic single piece 72 has a circular cross section corresponding to the shape of the corresponding upper opening 211.
  • a slit is formed in the middle of the deforming member 72.
  • a convex wall 722 is disposed on the circumference of the elastic single piece 72, and the convex wall 722 is closely attached to the convex side 213 and fixed on the outer side wall of the convex side 213.
  • the slit 721 of the elastic single piece 72 is distracted by the first tube portion 521, and the first tube portion 52 of the second guiding channel 52 can thus be worn.
  • the slit 721 of the over-elastic single piece 72 is inserted into the second flow guiding passage 52.
  • the slit 721 that is distracted follows the first tube portion 521 from the elastic single piece 72
  • the slit 721 is withdrawn and closed. The hot water ejected from the second end 512 of the first flow guiding passage 51 is thus blocked by the elastic single piece 72 closed by the slit 721 and returned to the water tank 2 along the return passage 21.
  • This embodiment is substantially the same as Embodiment 3 except that the number and relative positions of the slits 721 of the elastic single piece 72 are different.
  • the overall structure of the coffee machine in this embodiment is similar to that of the coffee machine shown in Figures 1 and 2.
  • two elastic cutouts 721 are provided in the middle of the elastic single piece 72.
  • the elastic single piece 72 is connected to the upper opening 211 of the return channel 21 in the same manner, and details are not described herein again.
  • FIG. 14 is a cross-sectional structural view showing the connection of the first tube portion and the second end of the first flow guiding channel in the embodiment 3 of the present invention.
  • the overall structure of the coffee machine in this embodiment is similar to that of the coffee machine shown in Figures 1 and 2. Referring to FIG. 1, FIG. 2 and FIG.
  • the lower end of the first tube portion 521 has a water inlet 524 of the second flow guiding passage 52, and the diameter of the water inlet 524 is smaller than the diameter of the first tube portion 521, the first guiding channel
  • the first end 512 is inserted from the water inlet 524 into the first tube portion 521 of the second flow guiding channel 52.
  • the second end 512 of the first guiding channel 51 has a closed top, and the first guiding channel 51
  • the side wall of the two ends 512 is provided with a side wall water outlet 514, and a gap is formed between the side wall water outlet 514 and the first tube portion 521 of the second flow guiding passage 52 so that hot water flows in from the side wall water outlet 514.
  • the second flow guiding channel 51 is provided with a side wall water outlet 514, and a gap is formed between the side wall water outlet 514 and the first tube portion 521 of the second flow guiding passage 52 so that hot water flows in from the side wall water outlet 514.

Abstract

一种咖啡机，包括主体(1)、第一盖体(6)，冲泡腔(412)、水箱(2)和加热装置(3)，所述冲泡腔(412)、水箱(2)和加热装置(3)设于主体(1)内，所述主体(1)设有主体开口，所述第一盖体(6)用于覆盖所述主体开口，所述咖啡机还包括用于覆盖冲泡腔开口(416)的第二盖体(63)，所述第二盖体(63)弹性设置于第一盖体(6)以便第一盖体(6)固定于主体(1)时所述第二盖体(63)与冲泡腔(412)之间形成相对密封。咖啡机能在第二盖体(63)与冲泡腔(412)之间形成相对密封，避免冲泡咖啡时冲泡腔(412)内咖啡微粒随着蒸汽从第二盖体(63)与冲泡腔(412)之间的缝隙中逸出。同时提供一种上述咖啡机的工作方法。

Description

一种咖啡机及其工作方法 技术领域
本发明涉及饮料制备设备领域，更具体的涉及一种用于冲泡咖啡的咖啡机及其工作方法。
背景技术
现有的咖啡机的第二盖体一般利用重力覆盖在冲泡腔上，第二盖体与冲泡腔之间存在缝隙，导致冲泡咖啡时冲泡腔内咖啡微粒随着蒸汽从该缝隙中逸出。逸出的咖啡颗粒可能会污染位于冲泡腔外的咖啡机的其他部件，造成咖啡机难以清洗。
传统的咖啡机的主体和用于覆盖主体开口第一盖体是不可完全分离的，这种第一个盖体通常是翻盖，该翻盖一端固定于咖啡机的主体上。咖啡机通常还具有水箱，加热装置，冲泡腔等。冲泡腔顶部具有冲泡腔开口以便将咖啡粉通过冲泡腔开口放入冲泡腔以冲泡咖啡。有些咖啡机的冲泡腔内设有研磨组件，也可以将咖啡豆等其他咖啡颗粒等通过冲泡腔开口放入冲泡腔。冲泡腔开口与主体开口对应，导流装置通常包括导流管，第一盖体通常也作为导流装置的一部分与导流管固定连接，被加热装置加热的液体从加热装置流进导流管，经过第一盖体，流向冲泡腔开口，并从冲泡腔开口进入冲泡腔。由于第一盖体与导流管固定连接，第一盖体至少有一端被固定而不能与主体完全分离，造成对咖啡机特别是第一盖体的清洗不方便。
有些咖啡机的具有研磨过滤装置，这种研磨过滤装置包括上面提到的冲泡腔和研磨组件。这种咖啡机的冲泡腔侧部设置有过滤器，咖啡颗粒在冲泡腔内被研磨并被冲泡和过滤。但是这种咖啡机的研磨过滤装置过滤效果并不好，因为咖啡液体中的颗粒由于重力原因沉积底部，导致从冲泡腔侧部的过滤器流出的液体浓度较低。另外，冲泡腔底部的液体由于与沉积底部的颗粒混合难以从过滤器排出，使得部分液体和咖啡颗粒残留在冲泡腔底部造成浪费。
发明内容
为了克服现有技术的不足，本发明的一个目的在于能在第二盖体与冲泡腔之 间形成相对密封的一种咖啡机，避免冲泡咖啡时冲泡腔内咖啡微粒随着蒸汽从第二盖体与冲泡腔之间的缝隙中逸出。
为实现上述目的，提供一种咖啡机，包括主体、第一盖体，冲泡腔、水箱和加热装置，所述冲泡腔、水箱和加热装置设于主体内，所述主体设有主体开口，所述第一盖体用于覆盖所述主体开口，其特征在于，所述咖啡机还包括用于覆盖冲泡腔开口的第二盖体，所述第二盖体弹性设置于第一盖体下侧以便第一盖体固定于主体时所述第二盖体与冲泡腔之间形成相对密封。由于第二盖体与冲泡腔之间形成相对密封，冲泡腔中的咖啡颗粒随蒸汽不会从第二盖体与冲泡腔之间缝隙逸出，因此避免咖啡颗粒污染冲泡腔外的咖啡机的其他部件。
在一个实施方式中，所述第一盖体和/或主体设有固定元件用于将第一盖体固定于所述主体，第一盖体和第二盖体之间设有弹性件，以便第一盖体固定于主体时所述第二盖体与冲泡腔之间形成相对密封。当第一盖体被固定于主体时，弹性件被压缩产生弹力而使第二盖体压紧冲泡腔，因此所述第二盖体与冲泡腔之间形成相对密封，从而防止冲泡腔中的咖啡颗粒随蒸汽从第二盖体与冲泡腔之间缝隙逸出。
在一个实施方式中，咖啡机还包括导流装置，所述导流装置包括第一导流通道，第一导流通道的第一端与加热装置连通，所述冲泡腔设有与第一导流通道的第二端对应的冲泡腔通孔，所述第一导流通道的第二端通过所述冲泡腔通孔插入所述冲泡腔。所述导流装置可以将加热后的液体从加热装置引导至冲泡腔中用于冲泡咖啡。所述加热装置中的液体加热后膨胀产生压力，使该液体进入第一导流通道并从第一导流通道第一端流至第一导流通道第二端，并进入冲泡腔中。在这种方案中，第一盖体可以不用于导流，不需要与第一导流通道连接，因此能允许第一盖体与主体完全分离，方便对第一盖体进行清洗。
在一个实施方式中，咖啡机还包括导流装置，所述导流装置包括第一导流通道和与第一导流通道可分离地连接的第二导流通道，第一导流通道的第一端与加热装置连通，所述第一盖体设有所述第二导流通道，所述第二导流通道具有进水口和出水口，所述出水口位于与所述冲泡腔开口对应的位置以便向冲泡腔供应液体。由于第一导流通道与第二导流通道可分离，因此所述导流装置能允许设有第二导流通道的第一盖体与第一导流通道分离，进一步，其能允许设有第二导流通 道的第一盖体与主体分离，方便对第一盖体进行清洗。在这种方案中，当第一导流通道与第二导流通道连接时，被加热装置加热后的液体进入第一导流通道继而从进水口进入第二导流通道，并从出水口流出。由于出水口位于与所述冲泡腔开口对应的位置，从出水口流出的液体流进所述冲泡腔。
在一个优选的实施方式中，所述第一盖体内部设有空腔，所述空腔设有所述进水口和所述出水口，所述进水口和所述出水口流体连通并形成第二导流通道，所述第一导流通道第二端与所述进水口可分离地的连接，所述出水口位于与所述冲泡腔开口对应的位置以便向冲泡腔供应液体。在本实施方式中，当第一导流通道与第二导流通道连接时，从第一导流通道流出的液体直接从所述进水口进入所述空腔并从所述出水口流出，最后进入所述冲泡腔。
更优选地，所述第一盖体可分离地与主体接合，所述第一盖体包括第一上盖体和第一下盖体，所述第一上盖体和第一下盖体接合使得第一上盖体和第一下盖体形成所述空腔。
更优选地，所述空腔内设有空腔通道，所述进水口和所述出水口分别与所述空腔通道流体连通并形成第二导流通道。在本实施方式中，当第一导流通道与第二导流通道连接时，从第一导流通道流出的液体直接从所述进水口进入所述空腔通道并从所述出水口流出，最后进入所述冲泡腔。
在另一个优选的实施方式中，所述第一盖体内部设有空腔，所述第二导流通道包括与所述空腔连通的第一管部，所述第一管部设有所述进水口，所述空腔设有所述出水口，所述进水口和所述出水口流体连通并形成第二导流通道，所述第一导流通道第二端与所述第一管部的进水口可分离地的连接，所述空腔的出水口位于与所述冲泡腔开口对应的位置以便向冲泡腔供应液体。在本实施方式中，当第一导流通道与第二导流通道连接时，从第一导流通道流出的液体依次进入第一管部和空腔，并从空腔的所述出水口进入所述冲泡腔。
更优选地，所述第一盖体可分离地与主体接合，所述第一盖体包括第一上盖体和第一下盖体，所述第一上盖体和第一下盖体接合使得第一上盖体和第一下盖体形成所述空腔。
更优选地，所述空腔内设有空腔通道，所述进水口和所述出水口分别与所述空腔通道流体连通并形成第二导流通道。在本实施方式中，当第一导流通道与第 二导流通道连接时，从第一导流通道流出的液体依次进入第一管部和空腔通道，并从空腔的所述出水口进入所述冲泡腔。
在又一个优选的实施方式中，所述第一盖体内部设有空腔，所述第二导流通道包括第一管部和第二管部，所述第一管部设有所述进水口，所述第二管部设有所述出水口，所述进水口和所述出水口分别与所述空腔流体连通并形成第二导流通道，所述第一导流通道第二端与所述第一管部的进水口可分离地的连接，所述第二管部的出水口位于与所述冲泡腔开口对应的位置以便向冲泡腔供应液体。在本实施方式中，当第一导流通道与第二导流通道连接时，从第一导流通道流出的液体依次进入第一管部、空腔和第二管部，并从第二管部进入所述冲泡腔。
更优选地，所述第一盖体可分离地与主体接合，所述第一盖体包括第一上盖体和第一下盖体，所述第一上盖体和第一下盖体接合使得第一上盖体和第一下盖体形成所述空腔。
更优选地，所述空腔内设有空腔通道，所述进水口和所述出水口分别与所述空腔通道流体连通并形成第二导流通道。在本实施方式中，当第一导流通道与第二导流通道连接时，从第一导流通道流出的液体依次进入第一管部、空腔通道和第二管部，并从第二管部进入所述冲泡腔。
在一个优选实施方式中，所述第二盖体设有第二盖体通孔，所述第二盖体通孔设置于所述第二导流通道的出水口对应的位置以便第二导流通道中液体经过所述第二盖体通孔流入主体。
在一个实施方式中，所述第一盖体设有一个或多个第一排气孔，所述第二盖体设有一个或多个第二排气孔，所述第一排气孔与所述第二排气孔连通。加热后的液体进入冲泡腔冲泡咖啡时，冲泡腔内会产生蒸汽，第二排气孔有助于将所述蒸汽排出冲泡腔，所述蒸汽进而通过第一排气孔排出主体外。
优选地，为防止冲泡腔中的咖啡颗粒随蒸汽从所述第二排气孔逸出，所述第二排气孔直径小于2mm。
更优选地，所述第二排气孔直径小于1mm。
在一个实施方式中，所述进水口和所述第一导流通道的第二端在主体内可分离的连接，所述咖啡机还包括阻挡装置，所述阻挡装置设置在与第一导流通道第二端对应的位置，以在第一导流通道与第二导流通道分离时能够变形，阻挡液体 喷出主体开口。如果在加热装置向导流装置供应已加热的液体的过程中将第一导流通道和第二导流通道分开，已加热的液体由于压力会从第一导流通道第二端向主体外部喷出，可能导致安全事故。为了消除这种安全隐患，设置阻挡装置时必要的。
在一个优选实施方式中，所述阻挡装置为弹性组件，所述弹性组件第一端弹性设置在与第一导流通道第二端对应的位置，所述弹性组件第二端能绕所述弹性组件第一端弹性转动而变形。在本实施方式中，所述弹性组件包括可转动的挡板，挡板第一端可设置为与主体可转动的连接，挡板与主体之间设置弹簧，所述挡板第一端通过弹簧弹性设置在与第一导流通道第二端对应的位置，所述挡板第二端能绕所述挡板第一端弹性转动而变形。当第一导流通道第二端与第二导流通道的第一管部连接时，第一管部推动挡板使挡板第二端从第一位置(水平位置)绕挡板第一端移动至第二位置(竖直位置)，当第一导流通道第一端与第二导流通道的第一管部分离时，弹簧提供弹力使挡板第二端从第二位置(竖直位置)绕挡板第一端移动至第一位置(水平位置)，以便挡住从第一导流通道第二端流出的液体。
在另一个优选实施方式中，所述阻挡装置为弹性单件，所述弹性单件中部设置有至少一个切口，所述弹性单件受挤压能变形使得所述切口张开。将第一管部插入所述切口时，所述第一管部挤压所述弹性单件使切口张开以便第一管部穿过所述弹性单件与第一导流通道连接。当第一导流通道第二端与第二导流通道的第一管部分离时，所述第一管部抽离所述切口，切口闭合，因此阻挡液体喷出主体外。
更优选地，为使第一管部更容易的穿过所述弹性单件，所述弹性单件中部设置有至少两个相互交叉的切口，所述弹性单件受挤压能变形使得所述切口张开。
在另一个优选实施方式中，所述主体内部设有回流通道分别与所述水箱上部和所述第一导流通道连通使得在第一盖体与主体分离时被阻挡装置阻挡的至少部分液体进入回流通道流至水箱。
在另一实施方式中，所述第一导流通道第二端套入第二导流通道的第一管部，所述第一导流通道第二端具有封闭的顶部，所述第一导流通道第二端侧壁设有侧壁出水口，所述侧壁出水口与第一管部之间设有缝隙以便液体从所述侧壁出 水口流入第二导流通道。当第一导流通道第二端与第一管部分离时，液体被第一导流通道第二端的顶部挡住，只能从侧壁的出水口喷出，由于侧壁的出水口并不朝向主体开口，因此第一导流通道与第二导流通道的第一管部分离时液体不会喷出主体外。
优选地，所述主体内部设有回流通道，所述回流通道分别与水箱上部和所述第一导流通道连通使得在第一导流通道与第二导流通道分离时从所述侧壁出水口流出的至少部分液体进入回流通道流至水箱。
在一个实施方式中，所述咖啡机还包括研磨过滤装置，所述研磨过滤装置包括：用于容纳液体和咖啡颗粒的腔体；用于研磨咖啡颗粒的研磨组件；与研磨组件连接并用于驱动研磨组件的驱动机构；以及用于过滤腔体中的咖啡液体的第一过滤器，所述腔体设有腔体开口，研磨组件的至少一部分置于腔体内，所述腔体包括所述冲泡腔，所述冲泡腔设有冲泡腔开口，所述冲泡腔底部设有与所述冲泡腔连通的液体通道，第一过滤器部分或全部位于冲泡腔底部，所述液体通道位于第一过滤器下侧使得冲泡腔中的咖啡液体进入液体通道之前流经第一过滤器。咖啡液体由于重力更容易从被部分或全部位于冲泡腔底部的第一过滤器过滤，这有助于咖啡液体排出而避免咖啡残留在冲泡腔内。另外咖啡液体由于重力在冲泡腔内形成流向冲泡腔底部的液流，使得更容易从冲泡腔底部的第一过滤器排出，并且有助于位于冲泡腔的咖啡颗粒快速溶解以便形成浓度较高的咖啡液体。
在一个优选实施方式中，所述研磨组件包括刀片和刀轴，所述刀轴穿过冲泡腔底部，位于冲泡腔内的所述刀轴的一端连接刀片，位于冲泡腔外的所述刀轴的一端连接驱动机构，以便所述驱动机构通过刀轴驱动刀片转动，以研磨冲泡腔中的咖啡颗粒。刀片转动能研磨咖啡颗粒，使咖啡颗粒从第一尺寸变为第二尺寸，其中第二尺寸小于第一尺寸。液体在进入冲泡腔与经研磨的咖啡颗粒(第二尺寸的咖啡颗粒)混合形成咖啡液体。另外，转动的刀片可以对咖啡液体进行搅拌，加速咖啡颗粒的溶解。
在另一个优选实施方式中，所述液体通道底部设有液体通道水阀，所述液体通道水阀用于控制液体通道内的咖啡液体的排放。当人们需要咖啡时，可以打开液体通道水阀使咖啡液体使从咖啡机中流出以供人们享用，不需要咖啡时，可以关闭液体通道水阀使咖啡液体停止从咖啡机中流出。这样使得咖啡不会被浪费。
在又一个优选实施方式中，所述腔体还包括收集腔，所述收集腔通过液体通道与冲泡腔连通使得已过滤的咖啡液体经液体通道流入收集腔。所述收集腔可以储存被过滤的咖啡液体。由于咖啡液体被过滤需要一定的时间，先流出冲泡腔的咖啡液体可能浓度较低，而后流出冲泡腔的咖啡液体由于有更多时间溶解咖啡颗粒，因此具有较高的浓度。浓度较低咖啡液体与浓度较高的液体在收集腔中混合可以得到浓度适宜的咖啡液体。
更优选地，所述收集腔底部设有收集腔水阀，所述收集腔水阀用于控制收集腔的液体的排放。当人们需要咖啡时，可以打开收集腔水阀使咖啡液体从咖啡机中流出以供人们享用，不需要咖啡时，可以关闭收集腔水阀使咖啡液体停止从咖啡机中流出。这样使得咖啡不会被浪费。
进一步，所述收集腔设置有用于过滤进入收集腔的液体的第二过滤器，所述第二过滤器被设置为使得进入收集腔的咖啡液体流到收集腔水阀之前流经第二过滤器。第二过滤器可以对咖啡液体进行第二次过滤，进一步去除咖啡液体中的残渣以得到口感更佳的咖啡。由于进入收集腔的咖啡液体已经被第一过滤器过滤，咖啡液体中的咖啡颗粒较小不易沉积在底部，因此第二过滤器可以不设置在收集腔底部。第二过滤器可以选择设置在使得进入收集腔的咖啡液体流到收集腔水阀之前流经第二过滤器的收集腔的任意位置。
在一个优选实施方式中，所述第一过滤器的底面高于收集腔的内底面。本实施方式中，收集腔与冲泡腔并排设置。由于第一过滤器的底面高于收集腔的内底面，这两者之间的高度差有助于于液体流过过滤器进入所述收集腔。尽管本实施方式描述了收集腔与冲泡腔并排设置的方案，很明显，当收集腔位于冲泡腔下侧时，液体能容易地流过过滤器进入所述收集腔，因此在其他实施方式中收集腔也可以设置在冲泡腔下侧。
在一个优选实施方式中，所述第一过滤器的厚度设置在0.1毫米至10毫米之间。第一过滤器不宜太薄，否则容易在清洗时被损坏。为了使第一过滤器经久耐用并且较好的过滤效果，第一过滤器的厚度适合设置在0.1毫米至10毫米之间。优选的，第一过滤器的厚度设置在0.1毫米至5毫米之间，更优选的，第一过滤器的厚度设置在0.1毫米至3毫米之间。
在一个优选实施方式中，与第一过滤器类似，所述第二过滤器的厚度设置在 0.1毫米至10毫米之间。优选的，第二过滤器的厚度设置在0.1毫米至5毫米之间，更优选的，第二过滤器的厚度设置在0.1毫米至3毫米之间。
本发明的另一个目的，在于提供一种咖啡机的工作方法。
所述咖啡机的工作方法，包括如下步骤：a.加入液体至水箱，加入咖啡粉至冲泡腔；b.将第一盖体固定在主体开口上以覆盖主体开口，所述第二盖体与冲泡腔之间形成相对密封；c.水箱向加热装置输送液体，加热装置对所述液体进行加热；d.加热装置输送已加热的液体至冲泡腔，所述液体与冲泡腔的咖啡粉混合形成咖啡液体。
进一步，步骤b之间还包括将当第一盖体固定在主体开口时,所述第一导流通道与第二导流通道连接；步骤d包括已加热的液体从加热装置依次流入第一导流通道和第二导流通道，并从第二导流通道流入冲泡腔。
进一步，步骤d进一步包括当第一导流通道与第二导流通道在所述加热装置向所述导流装置供水的过程中分离时，阻挡装置阻挡液体喷出主体开口。
进一步，步骤d进一步包括被阻挡装置阻挡的至少部分液体进入回流通道流至水箱。
或者，所述咖啡机的工作方法，包括如下步骤：a.加入液体至水箱，加入咖啡粉至冲泡腔；b.将第一盖体固定在主体开口上以覆盖主体开口，所述第二盖体与冲泡腔之间形成相对密封；c.水箱向加热装置输送液体，加热装置对所述液体进行加热；d.加热装置输送已加热的液体至冲泡腔，所述液体与冲泡腔的咖啡粉混合形成咖啡液体。
进一步，步骤b之间还包括将当第一盖体固定在主体开口时,所述第一导流通道与第二导流通道连接；步骤d包括已加热的液体从加热装置依次流入第一导流通道和第二导流通道，并从第二导流通道流入冲泡腔。
进一步，步骤d进一步包括当第一导流通道与第二导流通道在所述加热装置向所述导流装置供水的过程中分离时，液体从所述侧壁出水口流入主体内。
进一步，步骤d进一步包括当第一导流通道与第二导流通道在所述加热装置向所述导流装置供水的过程中分离时，从所述侧壁出水口流出的至少部分液体进入回流通道流至水箱。
或者，所述咖啡机的工作方法，包括如下步骤：a.加入液体至水箱，加入咖 啡颗粒至研磨过滤装置；b.将第一盖体固定在主体开口上以覆盖主体开口，所述第二盖体与冲泡腔之间形成相对密封；c.所述研磨过滤装置对咖啡颗粒进行研磨；d.水箱向加热装置输送液体，加热装置对所述液体进行加热；e.加热装置输送已加热的液体至研磨过滤装置，所述液体与研磨过滤装置中经研磨的咖啡颗粒混合形成咖啡液体；f.所述研磨过滤装置对所述咖啡液体进行过滤；g.所述研磨过滤装置将过滤后的咖啡液体排出。
进一步，步骤b之间还包括将当第一盖体固定在主体开口时,所述第一导流通道与第二导流通道连接；步骤e包括已加热的液体从加热装置依次流入第一导流通道和第二导流通道，并从第二导流通道流入冲泡腔。
进一步，步骤d进一步包括当第一导流通道与第二导流通道在所述加热装置向所述导流装置供水的过程中分离时，阻挡装置阻挡液体喷出主体开口。
进一步，步骤d进一步包括被阻挡装置阻挡的至少部分液体进入回流通道流至水箱。
或者，所述咖啡机的工作方法，包括如下步骤：a.加入液体至水箱，加入咖啡颗粒至研磨过滤装置；b.将第一盖体固定在主体开口上以覆盖主体开口，所述第二盖体与冲泡腔之间形成相对密封；c.所述研磨过滤装置对咖啡颗粒进行研磨；d.水箱向加热装置3输送液体，加热装置对所述液体进行加热；e.加热装置输送已加热的液体至研磨过滤装置，所述液体与研磨过滤装置中经研磨的咖啡颗粒混合形成咖啡液体；f.所述研磨过滤装置对所述咖啡液体进行过滤；g.所述研磨过滤装置将过滤后的咖啡液体排出。
进一步，步骤b之间还包括将当第一盖体固定在主体开口时,所述第一导流通道与第二导流通道连接；步骤e包括已加热的液体从加热装置依次流入第一导流通道和第二导流通道，并从第二导流通道流入冲泡腔。
进一步，步骤d进一步包括当第一导流通道与第二导流通道在所述加热装置向所述导流装置供水的过程中分离时，液体从所述侧壁出水口流入主体内。
进一步，步骤d进一步包括当第一导流通道与第二导流通道在所述加热装置向所述导流装置供水的过程中分离时，从所述侧壁出水口流出的至少部分液体进入回流通道流至水箱。
本发明的有益效果在于：
本发明的咖啡的第一盖体固定于主体时，第二盖体与冲泡腔之间能形成相对密封，冲泡腔中的咖啡颗粒随蒸汽不会从第二盖体与冲泡腔之间缝隙逸出，因此避免咖啡颗粒污染冲泡腔外的咖啡机的其他部件。进一步，本发明的咖啡机具有导流装置，所述导流装置可以引导液体至冲泡腔以冲泡咖啡并能允许咖啡机的主体和第一盖体可以完全分离，因此方便对第一盖体进行清洗。进一步，本发明的咖啡机的第一过滤器部分或全部位于冲泡腔底部使得冲泡腔中的咖啡液体进入通道之前流经第一过滤器咖啡液体使由于重力更容易从被部分或全部位于冲泡腔底部的第一过滤器过滤。这有助于咖啡液体排出而避免其残留在冲泡腔内。另外咖啡液体由于重力在腔体内形成流向冲泡腔底部的液流，使得更容易从冲泡腔底部的第一过滤器排出，并且有助于位于冲泡腔的咖啡颗粒快速溶解以便形成浓度较高的咖啡液体。
附图说明
图1为本发明的实施例1的咖啡机剖视结构示意图；
图2为本发明的实施例1的咖啡机的第一盖体与主体分离的剖视结构示意图；
图3为本发明实施例1的咖啡机的局部爆炸结构示意图；
图4为本发明实施例1的咖啡机的另一局部爆炸结构示意图；
图5为本发明实施例1中图2中A部的局部结构示意图；
图6为本发明实施例1的咖啡机的爆炸结构示意图；
图7为本发明实施例1的咖啡机的主体与第一盖体完全分离的立体图；
图8为本发明的实施例1的咖啡机的第一下盖体覆盖在主体上的结构示意图；
图9为本发明的实施例1的咖啡机的另一剖视结构示意图；
图10为本发明的实施例3中咖啡机的局部咖啡机剖视结构示意图；
图11为本发明的实施例3中咖啡机的局部咖啡机剖视结构示意图；
图12为本发明的实施例3中弹性单件的剖视结构示意图；
图13为本发明的实施例4中弹性单件的剖视结构示意图；
图14为本发明的实施例5中显示第一管部和第一导流通道第二端连接的剖视结构示意图。
具体实施方式
下面结合具体实施方式对本发明作进一步的说明。
实施例1
如图1所示，包括主体1，研磨过滤装置，水箱2和加热装置3，所述研磨过滤装置，水箱2和加热装置3设于主体1内。所述主体1顶部设有主体开口，所述咖啡机还包括用于覆盖所述主体开口的第一盖体6。研磨过滤装置包括：用于容纳液体和咖啡颗粒的腔体41；用于研磨咖啡颗粒的研磨组件；与研磨组件连接并用于驱动研磨组件的电机43；以及用于过滤腔体41中的咖啡液体的第一过滤器44。如图1和图4所示，在这个实施例中，所述腔体41通过主体开口放置在主体1内并与主体1卡接，腔体41包括冲泡腔412和收集腔413，冲泡腔412底部设有与冲泡腔412和收集腔413连通的液体通道411，冲泡腔412顶部具有冲泡腔开口416，需要研磨的咖啡豆可以从该冲泡腔开口416放入冲泡腔412进行研磨。所述研磨组件包括刀片421和刀轴422，冲泡腔412设有装配孔用于安装刀轴422，刀轴422一端安装在冲泡腔412的内底部并与刀片421固定连接。所述刀轴422另一端从装配孔伸出冲泡腔412外并利用耦合接头组件与电机43连接。如图1至3所示，刀轴422位于装配孔套设有轴套423，轴套423与装配孔之间用密封圈424密封。冲泡腔412的下侧对应研磨组件设置有耦合接头组件，耦合接头组件由上耦合接头431和下耦合接头432组成。刀轴422与上耦合接头431相连，下耦合接头432套设于电机43的电机轴上，下耦合接头432与上耦合接头431接合。当启动电机43时，电机驱动刀轴422和刀片421转动，对冲泡腔的咖啡豆进行研磨，使其最终变成咖啡粉。在冲泡腔412内冲泡咖啡时，加热装置3可以为冲泡腔412提供热水，咖啡粉和热水混合形成咖啡液体，具体的冲泡的过程将在下文详述。
参见图1和图4，本实施例中，第一过滤器44为与冲泡腔412底部形状相适应的环形的第一过滤网44，该第一过滤网44环绕刀轴422并铺设在刀片421下侧的冲泡腔412的内底面上，第一过滤网44外周边缘设置有把手441以便清洗第一过滤网44前取出第一过滤网44。如上所述，冲泡腔412底部设有与所述冲泡腔412连通的液体通道411，因此在冲泡腔412内的咖啡液体由于重力流向液体通道411，这使得在冲泡腔412内的咖啡液体能容易地被位于冲泡腔412的 内底面上的第一过滤网44过滤并流入液体通道411。
本实施例中，参见图1至4和图9，如上所述，腔体41包括冲泡腔412和收集腔413。所述收集腔413通过液体通道411与冲泡腔412连通，被第一过滤网44过滤的咖啡液体经液体通道411流入收集腔413。所述收集腔413底部设有收集腔水阀414，所述收集腔水阀414用于控制收集腔413的咖啡液体的排放。为了对咖啡液体进一步过滤，所述收集腔413内设置有第二过滤器415，第二过滤器415竖立设置并在收集腔413内形成包围收集腔水阀414的围墙，该围墙的下部具有多个过滤孔。所述第一盖体6底部与收集腔413内底面将第二过滤器415夹持固定。当然，在其他实施例中，腔体12可以不包括收集腔413，冲泡腔412中的咖啡液体通过第一过滤网44直接液体通道411排出。根据需要在液体通道411上设置液体通道水阀以控制液体的排放。作为一种选择，也可以将第二过滤器设置在液体通道411内对咖啡液体进行再次过滤。
参见图1、图2、图6和图8，所述咖啡机还包括所述导流装置，所述导流装置包括第一导流通道51和与第一导流通道51第二端512可分离地连接的第二导流通道52，第一导流通道51的第一端511与加热装置3连通，所述第二导流通道52的具有进水口524和出水口525，出水口525位于与冲泡腔开口416对应的位置以便向冲泡腔412供应热水。所述第一盖体6可分离的与主体开口接合，第一上盖体61与第一下盖体62扣接并因此在第一上盖体61和第一下盖体62之间形成所述空腔523。第一下盖体62向下延伸设置第二导流通道52的第一管部521和第二管部522，第一管部521和第二管部522分别与空腔523连通。所述空腔523内设有空腔通道526，空腔通道526具有空腔通道盖527和敞开的顶部，空腔通道盖527覆盖该敞开的顶部以便限定通过空腔通道526的热水的流向。所述进水口524和所述出水口525分别与所述空腔通道526流体连通并形成第二导流通道52。第二导流通道52的进水口524和出水口525分别位于第一管部521和第二管部522的下端。当第一盖体6覆盖在主体1顶部时，第一管部521被插入第一导流通道51第二端512内与第一导流通道51连通。加热装置3一端与水箱2连通，加热装置3位于水箱2下侧，以便水从水箱流入加热装置3加热生成热水，加热装置3与水箱2连接处设有单向阀31以防止加热装置3的热水倒流回水箱。第一导流通道51第一端511与加热装置3的另一端连通，进入的加热 装置3在水加热时形成压力推动热水流向第一导流通道51第一端511。热水沿第一导流通道51进入第二导流通道52，即依次即进入第一管部521，空腔通道526和第二管部522，最后进入冲泡腔412中与咖啡粉混合形成咖啡液体。本实施例中，为了加速咖啡粉解于热水中，第二管部522的出水口525处设有喷嘴(图未示出)以便液体通过冲喷嘴中喷射进入冲泡腔412。由于第一管部521与第一盖体6的空腔523连通，从主体1上取下第一盖体6时，第一管部521下端从第一导流通道51内抽离。这种操作在导流装置向冲泡腔412输送热水时可能导致危险，因为由第一导流通道51输送的热水由于水压会将直接喷出主体1外而导致使用者被烫伤。
为了防止上述安全隐患，如图1、图2和图5所示，本实施例中还包括阻挡装置用于阻挡热水喷出主体外，该阻挡装置为弹性组件，该弹性组件包括挡板71和扭簧712。为了使被阻挡装置阻挡的至少部分热水可以回流至水箱2中，主体1内部设有回流通道21，回流通道21分别与水箱2上部和所述第一导流通道51连通。回流通道21垂直于第一导流通道51，其一端连通水箱2上部，另一端为封闭端。回流通道21上侧壁设有上开口211与主体开口连通，其下侧壁设有下开口212与第一导流通道51第二端512连通。所述扭簧712固定在回流通道21内，挡板71第一端与扭簧712连接，挡板71第二端为可以绕第一端移动的自由端。上开口211向下设有凸边213，所述凸边213略高于挡板71第一端。当第一盖体6未放置在主体上时，所述挡板71在弹力作用下抵顶凸边213并处于第一位置使上开口211被封闭。当第二导流通道52的第一管部521插入上开口211与第一导流通道51连通时，第一管部512推动挡板71使其第一端从第一位置(水平位置)移动至第二位置(竖直位置)以便第一管部512与第一导流通道51第二端512连通。当第一导流通道51第二端512与第一管部521分离时，扭簧712提供弹力使挡板71第二端绕其第一端移动至第一位置(水平位置)从而关闭上开口211，因此第一导流通道51第二端512喷出的热水被挡板71挡住并通过回流通道21回流至水箱2。
如图所示图6和7，第一盖体6下侧还设有用于与冲泡腔412盖合的第二盖体63，第一盖体6和第二盖体63之间设有弹性件633使得第一盖体6固定于主体1时所述第二盖体63与冲泡腔412之间形成相对密封。第二盖体63中部设有 与第二管部522对应的第二盖体通孔631，第二盖体63通过该第二盖体通孔631套设在第二管部522上。所述第二盖体63的边缘设有凸部，该凸部设有第一斜边，冲泡腔开口416的边缘设有与第一斜边对应的第二斜边，当第二盖体63覆盖于冲泡腔开口416时，第一斜边和第二斜边接合。本实施例中，所述弹性件633为弹簧633，该弹簧633套设在第二管部522上并位于第二盖体63与第一盖体6底部之间。所述腔体开口向上凸设围壁101，所述围壁101伸出主体开口，第一盖体6侧部设有锁键611和锁扣621，该围壁101具有与锁扣621对应的扣位622，锁键661用于驱动锁扣621与扣位622扣合。使用时，把第一盖体6放置在主体开口上，按下锁键611使锁扣621缩进第一盖体6内部，把第一盖体6向主体1内部按压，第一盖体6底部伸入围壁101包围的空间，第一下盖体62外侧壁与围壁101的内壁接触，锁扣621伸入扣位622卡紧，第一盖体6因此被固定在主体1上。另外，按压第一盖体6时，第一盖体6通过弹簧633推动第二盖体63使其抵接冲泡腔开口416。第一盖体6被锁定在主体1上使弹簧633被压缩在第二盖体63和第一盖体6之间，被压缩的弹簧633提供弹力使第二盖体63与冲泡腔412的开口紧密接合，因此第二盖体63与冲泡腔412的开口形成相对密封，防止咖啡粉随冲泡腔412内的蒸汽从第二盖体63与冲泡腔412的开口之间的缝隙逸出。
参见图1-2和图7-8该第二盖体63设置有多个第二排气孔632用于排放冲泡腔412中多余的蒸汽以避免在冲泡腔412形成高压，本实施例中，第二排气孔632的直径约为0.5mm,第二排气孔632细密的分布在第二盖体63上使得第二盖体63的一部分形成网状结构以防止咖啡粉跟随从第一排气孔632中排出。第一盖体6设有多个第一排气孔601。第一排气孔601与第二排气孔632连通，第二排气孔632将冲泡腔412中的部分蒸汽排出，所述蒸汽进而通过第一排气孔601排出主体外。
本实施例的咖啡机的工作方法，包括以下步骤：
a.加入液体至水箱2，加入咖啡颗粒至研磨过滤装置；b.将第一盖体6固定在主体开口上以覆盖主体开口，所述第二盖体63与冲泡腔412之间形成相对密封；c.所述研磨过滤装置对咖啡颗粒进行研磨；d.水箱2向加热装置3输送液体，加热装置3对所述液体进行加热；e.加热装置3输送已加热的液体至研磨过 滤装置，所述液体与研磨过滤装置中经研磨的咖啡颗粒混合形成咖啡液体；f.所述研磨过滤装置对所述咖啡液体进行过滤；g.所述研磨过滤装置将过滤后的咖啡液体排出。
在这个实施例中，步骤b之间还包括将当第一盖体6固定在主体开口时,所述第一导流通道51与第二导流通道52连接；步骤e包括已加热的液体从加热装置3依次流入第一导流通道51和第二导流通道52，并从第二导流通道52流入冲泡腔412。
在这个实施例中，进一步包括当第一导流通道51与第二导流通道52在所述加热装置3向所述导流装置供应液体的过程中分离时，阻挡装置阻挡液体喷出主体开口。
在这个实施例中，步骤d进一步包括被阻挡装置阻挡的至少部分液体进入回流通道21流至水箱2。
实施例2
本实施例与实施例1大体相同，区别之处仅在于导流装置的结构不同。本实施例的咖啡机的导流装置类似于图2所示，但是其不具有第二导流通道52。本实施例的咖啡机的导流装置包括第一导流通道51，第一导流通道51的第一端511与加热装置3连通，所述冲泡腔412设有与第一导流通道51的第二端512对应的通孔，所述第一导流通道51的第二端512通过所述冲泡腔通孔插入所述冲泡腔412。
实施例3
本实施例与实施例1大体相同，区别之处仅在于阻挡装置的结构不同。本实施例中的咖啡机的整体结构与图1和图2所示的咖啡机类似，如图10至12所示，阻挡装置为一固定在上开口211的片状的弹性单件72，所述弹性单件72横截面为圆形，与对应上开口211形状相对应。所述变形件72中部设有一个切口。弹性单件72的圆周上设有凸壁722，凸壁722围绕凸边213贴紧并固定在凸边213的外侧壁上。当第二导流通道52的第一管部521插入上开口211时，弹性单件72的切口721被第一管部521撑开，第二导流通道52的第一管部52因此能穿过弹性单件72的切口721插入第二导流通道52内。当第一导流通道51第二端512与第一管部521分离时，被撑开的切口721随着第一管部521从弹性单件72 的切口721抽出而闭合。第一导流通道51第二端512喷出的热水因此被切口721闭合的弹性单件72阻挡而沿回流通道21回流至水箱2。
实施例4
本实施例与实施例3大体相同，区别之处仅在于弹性单件72的切口721的数目和相对位置不同。本实施例中的咖啡机的整体结构与图1和图2所示的咖啡机类似。如图13所示，本实施例中，弹性单件72中部设有两个相互交叉的切口721。弹性单件72与回流通道21的上开口211连接方式相同，在此不再赘述。
实施例5
本实施例与实施例1大体相同，区别之处仅在于第一管部521与第一导流通道51第二端512结构不同以及其连接方式不同。图14仅示出了图13为本发明的实施例3中显示第一管部和第一导流通道第二端连接的剖视结构示意图。本实施例中的咖啡机的整体结构与图1和图2所示的咖啡机类似。参见图1，图2和图14，第一管部521的下端具有第二导流通道52的进水口524，进水口524的直径小于第一管部521的直径，所述第一导流通道51第一端512从该进水口524插入第二导流通道52的第一管部521，所述第一导流通道51第二端512具有封闭的顶部，所述第一导流通道51第二端512侧壁设有侧壁出水口514，所述侧壁出水口514与第二导流通道52的第一管部521之间设有缝隙以便热水从所述侧壁出水口514流入第二导流通道51。

Claims (27)

  1. 一种咖啡机，包括主体(1)、第一盖体(6)，冲泡腔(412)、水箱(2)和加热装置(3)，所述冲泡腔(412)、水箱(2)和加热装置(3)设于主体(1)内，所述主体(1)设有主体开口，所述第一盖体(6)用于覆盖所述主体开口，其特征在于，所述咖啡机还包括用于覆盖冲泡腔开口(416)的第二盖体(63)，所述第二盖体(63)弹性设置于第一盖体(6)下侧以便第一盖体(6)固定于主体(1)时所述第二盖体(63)与冲泡腔(412)之间形成相对密封。
  2. 根据权利要求1所述的咖啡机，其特征在于，所述第一盖体(6)和/或主体(1)设有固定元件用于将第一盖体(6)固定于所述主体(1)，第一盖体(6)和第二盖体(63)之间设有弹性件(633)，以便第一盖体(6)固定于主体(1)时所述第二盖体(63)与冲泡腔(412)之间形成相对密封。
  3. 根据权利要求1所述的咖啡机，其特征在于，咖啡机还包括导流装置，所述导流装置包括第一导流通道(51)，第一导流通道(51)的第一端(511)与加热装置(3)连通，所述冲泡腔(412)设有与第一导流通道(51)的第二端(512)对应的冲泡腔通孔，所述第一导流通道(51)的第二端(512)通过所述冲泡腔通孔插入所述冲泡腔(412)。
  4. 根据权利要求1所述的咖啡机，其特征在于，咖啡机还包括导流装置，所述导流装置包括第一导流通道(51)和与第一导流通道(51)可分离地连接的第二导流通道(52)，第一导流通道(51)的第一端(511)与加热装置(3)连通，所述第一盖体(6)设有所述第二导流通道(52)，所述第二导流通道(52)具有进水口(524)和出水口(525)，所述出水口(525)位于与所述冲泡腔开口(416)对应的位置以便向冲泡腔(412)供应液体。
  5. 根据权利要求4所述的咖啡机，其特征在于，所述第二盖体(63)设有第二盖体通孔(631)，所述第二盖体通孔(631)设置于所述第二导流通道(52)的出水口(525)对应的位置以便第二导流通道(525)中液体经过所述第二盖体通孔(631)流入主体(1)。
  6. 根据权利要求1所述的咖啡机，其特征在于，所述第一盖体(6)设有一个或多个第一排气孔(601)，所述第二盖体(63)设有一个或多个第二排气孔 (632)，所述第一排气孔(601)与所述第二排气孔(632)连通。
  7. 根据权利要求6所述的咖啡机，其特征在于，所述第二排气孔直径小于2mm。
  8. 根据权利要求7所述的咖啡机，其特征在于，所述第二排气孔直径小于1mm。
  9. 根据权利要求4所述的咖啡机，其特征在于，所述进水口(524)和所述第一导流通道(51)的第二端(512)在主体(1)内可分离的连接，所述咖啡机还包括阻挡装置，所述阻挡装置设置在与第一导流通道(51)第二端(512)对应的位置，以在第一导流通道(51)与第二导流通道(52)分离时能够变形，阻挡液体喷出主体(1)开口。
  10. 根据权利要求9所述的咖啡机，其特征在于，所述阻挡装置为弹性组件，所述弹性组件第一端弹性设置在与第一导流通道(51)第二端(512)对应的位置，所述弹性组件第二端能绕所述弹性组件第一端弹性转动而变形。
  11. 根据权利要求9所述的咖啡机，其特征在于，所述阻挡装置为弹性单件，所述弹性单件(72)中部设置有至少一个切口(721)，所述弹性单件(72)受挤压能变形使得所述切口(721)张开。
  12. 根据权利要求9所述的咖啡机，其特征在于，所述主体(1)内部设有回流通道(21)，所述回流通道(21)分别与水箱(2)上部和所述第一导流通道(51)连通使得在第一导流通道(51)与第二导流通道(52)分离时被阻挡装置阻挡的至少部分液体进入回流通道(21)流至水箱(2)。
  13. 根据权利要求4所述的咖啡机，其特征在于，所述进水口(524)和所述第一导流通道(51)的第二端(512)在主体(1)内可分离的连接，所述第一导流通道(51)第二端(512)套入第二导流通道(52)的第一管部(521)，所述第一导流通道(51)第二端(512)具有封闭的顶部，所述第一导流通道(51)第二端(512)侧壁设有侧壁出水口(514)，所述侧壁出水口(514)与第一管部(51)之间设有缝隙以便液体从所述侧壁出水口(514)流入第二导流通道(52)。
  14. 根据权利要求13所述的咖啡机，其特征在于，所述主体(1)内部设有回流通道(21)，所述回流通道(21)分别与水箱(2)上部和所述第一导流通道(51)连通使得在第一导流通道(51)与第二导流通道(52)分离时从所述侧壁 出水口(514)流出的至少部分液体进入回流通道(21)流至水箱(2)。
  15. 根据权利要求1所述的咖啡机，其特征在于，所述咖啡机还包括研磨过滤装置，所述研磨过滤装置包括：用于容纳液体和咖啡颗粒的腔体(41)；用于研磨咖啡颗粒的研磨组件；与研磨组件连接并用于驱动研磨组件的驱动机构(43)；以及用于过滤腔体(41)中的咖啡液体的第一过滤器(44)，所述腔体(41)设有腔体开口，研磨组件的至少一部分置于腔体(41)内，所述腔体(41)包括所述冲泡腔(412)，所述冲泡腔(412)设有冲泡腔开口(416)，所述冲泡腔(412)底部设有与所述冲泡腔(412)连通的液体通道(411)，第一过滤器(44)部分或全部位于冲泡腔(412)底部，所述液体通道(411)位于第一过滤器(44)下侧使得冲泡腔(412)中的咖啡液体进入液体通道(411)之前流经第一过滤器(44)。
  16. 一种根据权利要求1至15中的任一项所述的咖啡机的工作方法，其特征在于，包括如下步骤：a.加入液体至水箱(2)，加入咖啡粉至冲泡腔(412)；b.将第一盖体(6)固定在主体开口上以覆盖主体开口，所述第二盖体(63)与冲泡腔(412)之间形成相对密封；c.水箱(2)向加热装置(3)输送液体，加热装置(3)对所述液体进行加热；d.加热装置(3)输送已加热的液体至冲泡腔(412)，所述液体与冲泡腔(412)的咖啡粉混合形成咖啡液体。
  17. 根据权利要求16所述的咖啡机的工作方法，其特征在于，咖啡机还包括导流装置，所述导流装置包括第一导流通道(51)和与第一导流通道(51)可分离地连接的第二导流通道(52)，第一导流通道(51)的第一端(511)与加热装置(3)连通，所述第一盖体(6)设有所述第二导流通道(52)，所述第二导流通道(52)具有进水口(524)和出水口(525)，所述出水口(525)位于与所述冲泡腔开口(416)对应的位置以便向冲泡腔(412)供应液体。
    步骤b之间还包括将当第一盖体(6)固定在主体开口时,所述第一导流通道(51)与第二导流通道(52)连接；步骤d包括已加热的液体从加热装置(3)依次流入第一导流通道(51)和第二导流通道(52)，并从第二导流通道(52)流入冲泡腔(412)。
  18. 根据权利要求17所述的咖啡机的工作方法，其特征在于，所述进水口(524)和所述第一导流通道(51)的第二端(512)在主体(1)内可分离的连接，所述咖啡机还包括阻挡装置，所述阻挡装置设置在与第一导流通道(51)第 二端(512)对应的位置，以在第一导流通道(51)与第二导流通道(52)分离时能够变形，阻挡液体喷出主体开口，
    步骤d进一步包括当第一导流通道(51)与第二导流通道(52)在所述加热装置(3)向所述导流装置供水的过程中分离时，阻挡装置阻挡液体喷出主体开口。
  19. 根据权利要求18所述的咖啡机的工作方法，其特征在于，所述主体(1)内部设有回流通道(21)，所述回流通道(21)分别与水箱(2)上部和所述第一导流通道(51)连通使得在第一导流通道(51)与第二导流通道(52)分离时被阻挡装置阻挡的至少部分液体进入回流通道(21)流至水箱(2)，
    步骤d进一步包括被阻挡装置阻挡的至少部分液体进入回流通道(21)流至水箱(2)。
  20. 根据权利要求17所述的咖啡机的工作方法，其特征在于，所述进水口(524)和所述第一导流通道(51)的第二端(512)在主体(1)内可分离的连接，所述第一导流通道(51)第二端(512)套入第二导流通道(52)的第一管部(521)，所述第一导流通道(51)第二端(512)具有封闭的顶部，所述第一导流通道(51)第二端(512)侧壁设有侧壁出水口(514)，所述侧壁出水口(514)与第一管部(51)之间设有缝隙以便液体从所述侧壁出水口(514)流入第二导流通道(52)，
    步骤d进一步包括当第一导流通道(51)与第二导流通道(52)在所述加热装置(3)向所述导流装置供水的过程中分离时，液体从所述侧壁出水口(514)流入主体内。
  21. 根据权利要求20所述的咖啡机的工作方法，其特征在于，所述主体(1)内部设有回流通道(21)，所述回流通道(21)分别与水箱(2)上部和所述第一导流通道(51)连通使得在第一导流通道(51)与第二导流通道(52)分离时从所述侧壁出水口(514)流出的至少部分液体进入回流通道(21)流至水箱(2)，
    步骤d进一步包括当第一导流通道(51)与第二导流通道(52)在所述加热装置(3)向所述导流装置供水的过程中分离时，从所述侧壁出水口(514)流出的至少部分液体进入回流通道(21)流至水箱(2)。
  22. 一种根据权利要求1至15中的任一项所述的咖啡机的工作方法，所述 咖啡机还包括研磨过滤装置，所述研磨过滤装置包括：用于容纳液体和咖啡颗粒的腔体(41)；用于研磨咖啡颗粒的研磨组件；与研磨组件连接并用于驱动研磨组件的驱动机构(43)；以及用于过滤腔体(41)中的咖啡液体的第一过滤器(44)，所述腔体(41)设有腔体开口，研磨组件的至少一部分置于腔体(41)内，所述腔体(41)包括所述冲泡腔(412)，所述冲泡腔(412)设有冲泡腔开口(416)，所述冲泡腔(412)底部设有与所述冲泡腔(412)连通的液体通道(411)，第一过滤器(44)部分或全部位于冲泡腔(412)底部，所述液体通道(411)位于第一过滤器(44)下侧使得冲泡腔(412)中的咖啡液体进入液体通道(411)之前流经第一过滤器(44)，
    包括如下步骤：a.加入液体至水箱(2)，加入咖啡颗粒至研磨过滤装置；b.将第一盖体(6)固定在主体开口上以覆盖主体开口，所述第二盖体(63)与冲泡腔(412)之间形成相对密封；c.所述研磨过滤装置对咖啡颗粒进行研磨；d.水箱(2)向加热装置(3)输送液体，加热装置(3)对所述液体进行加热；e.加热装置(3)输送已加热的液体至研磨过滤装置，所述液体与研磨过滤装置中经研磨的咖啡颗粒混合形成咖啡液体；f.所述研磨过滤装置对所述咖啡液体进行过滤；g.所述研磨过滤装置将过滤后的咖啡液体排出。
  23. 根据权利要求22所述的咖啡机的工作方法，其特征在于，咖啡机还包括导流装置，所述导流装置包括第一导流通道(51)和与第一导流通道(51)可分离地连接的第二导流通道(52)，第一导流通道(51)的第一端(511)与加热装置(3)连通，所述第一盖体(6)设有所述第二导流通道(52)，所述第二导流通道(52)具有进水口(524)和出水口(525)，所述出水口(525)位于与所述冲泡腔开口(416)对应的位置以便向冲泡腔(412)供应液体。
    步骤b之间还包括将当第一盖体(6)固定在主体开口时,所述第一导流通道(51)与第二导流通道(52)连接；步骤e包括已加热的液体从加热装置(3)依次流入第一导流通道(51)和第二导流通道(52)，并从第二导流通道(52)流入冲泡腔(412)。
  24. 根据权利要求23所述的咖啡机的工作方法，其特征在于，所述进水口(524)和所述第一导流通道(51)的第二端(512)在主体(1)内可分离的连接，所述咖啡机还包括阻挡装置，所述阻挡装置设置在与第一导流通道(51)第二端(512) 对应的位置，以在第一导流通道(51)与第二导流通道(52)分离时能够变形，阻挡液体喷出主体开口，
    步骤d进一步包括当第一导流通道(51)与第二导流通道(52)在所述加热装置(3)向所述导流装置供应液体的过程中分离时，阻挡装置阻挡液体喷出主体开口。
  25. 根据权利要求24所述的咖啡机的工作方法，其特征在于，所述主体(1)内部设有回流通道(21)，所述回流通道(21)分别与水箱(2)上部和所述第一导流通道(51)连通使得在第一导流通道(51)与第二导流通道(52)分离时被阻挡装置阻挡的至少部分液体进入回流通道(21)流至水箱(2)，
    步骤d进一步包括被阻挡装置阻挡的至少部分液体进入回流通道(21)流至水箱(2)。
  26. 根据权利要求23所述的咖啡机的工作方法，其特征在于，所述进水口(524)和所述第一导流通道(51)的第二端(512)在主体(1)内可分离的连接，所述第一导流通道(51)第二端(512)套入第二导流通道(52)的第一管部(521)，所述第一导流通道(51)第二端(512)具有封闭的顶部，所述第一导流通道(51)第二端(512)侧壁设有侧壁出水口(514)，所述侧壁出水口(514)与第一管部(51)之间设有缝隙以便液体从所述侧壁出水口(514)流入第二导流通道(52)，
    步骤d进一步包括当第一导流通道(51)与第二导流通道(52)在所述加热装置(3)向所述导流装置供水的过程中分离时，液体从所述侧壁出水口(514)流入主体内。
  27. 根据权利要求26所述的咖啡机的工作方法，其特征在于，所述主体(1)内部设有回流通道(21)，所述回流通道(21)分别与水箱(2)上部和所述第一导流通道(51)连通使得在第一导流通道(51)与第二导流通道(52)分离时被阻挡装置阻挡的至少部分液体进入回流通道(21)流至水箱(2)，
    步骤d进一步包括当第一导流通道(51)与第二导流通道(52)在所述加热装置(3)向所述导流装置供水的过程中分离时，从所述侧壁出水口(514)流出的至少部分液体进入回流通道(21)流至水箱(2)。
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