WO2016023457A1 - 一种咖啡机 - Google Patents

一种咖啡机 Download PDF

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Publication number
WO2016023457A1
WO2016023457A1 PCT/CN2015/086593 CN2015086593W WO2016023457A1 WO 2016023457 A1 WO2016023457 A1 WO 2016023457A1 CN 2015086593 W CN2015086593 W CN 2015086593W WO 2016023457 A1 WO2016023457 A1 WO 2016023457A1
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WO
WIPO (PCT)
Prior art keywords
exhaust
exhaust port
exhausting
port
state
Prior art date
Application number
PCT/CN2015/086593
Other languages
English (en)
French (fr)
Inventor
蔡坚明
Original Assignee
蔡坚明
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 蔡坚明 filed Critical 蔡坚明
Priority to EP15831717.2A priority Critical patent/EP3181020B1/en
Priority to ES15831717T priority patent/ES2871038T3/es
Priority to US15/503,628 priority patent/US10610047B2/en
Publication of WO2016023457A1 publication Critical patent/WO2016023457A1/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
    • A47J31/005—Portable or compact beverage making apparatus, e.g. for travelling, for use in automotive vehicles
    • 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
    • A47J31/10—Coffee-making apparatus, in which the brewing vessel, i.e. water heating container, is placed above or in the upper part of the beverage containers i.e. brewing vessel; Drip coffee-makers with the water heating container in a higher position than the brewing vessel
    • A47J31/106—Coffee-making apparatus, in which the brewing vessel, i.e. water heating container, is placed above or in the upper part of the beverage containers i.e. brewing vessel; Drip coffee-makers with the water heating container in a higher position than the brewing vessel with a valve at the water heating container outlet
    • 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
    • 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
    • A47J31/461—Valves, e.g. drain valves
    • 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
    • A47J31/54—Water boiling vessels in beverage making machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20—Excess-flow valves

Definitions

  • the invention relates to a coffee machine.
  • Coffee machines have become a popular product in people's daily work and life.
  • the existing large coffee machines are bulky and complicated in structure, which makes them difficult to maintain and use, and is not convenient for promotion in homes and individuals.
  • the existing small coffee machine uses a complicated component such as a heat exchanger and a solenoid valve to control the outflow of hot water in the boiling water chamber, so that the volume thereof is still large, and only a simple operation of brewing the water and brewing the coffee powder can be realized.
  • the quality of the coffee produced is unstable.
  • a coffee machine comprising a pot and a heating mechanism for heating the pot, the pot having a water inlet and a drain, and a drain at the drain is provided at the drain
  • the ambient temperature opens or blocks the automatic draining mechanism of the drain.
  • the automatic drainage mechanism includes: a drain valve cover fixed at a fixed distance from the drain port, the drain valve cover is provided with an opening; and the drain valve is located at the drain valve a drain valve between the cover and the drain port, the drain valve plate being restrained by the drain valve cover and generating a drain when the ambient temperature at the drain port is raised to a first temperature
  • the state of the mouth becomes a deformation of a state in which the drain port is opened, and when the ambient temperature at the drain port drops below the first temperature, a state in which the drain port is opened is changed to block the drain port. The deformation of the state.
  • a side wall of the pot near the end of the water inlet The upper opening is provided with an exhaust port and is provided with an automatic steam exhausting mechanism for opening or blocking the exhaust port according to the ambient temperature at the exhaust port.
  • the automatic steam exhausting mechanism comprises: an exhaust sheet cover fixed at a fixed distance from the exhaust port, the exhaust plate cover is provided with an opening; and the exhaust plate is located An automatic exhausting piece between the cover and the exhaust port, the automatic exhausting piece being restrained by the exhausting vane cover and generated when the ambient temperature at the exhausting opening is raised to a second temperature
  • the state of blocking the exhaust port becomes a deformation of a state in which the exhaust port is opened, and a state in which the exhaust port is opened when the ambient temperature at the exhaust port falls below a second temperature It becomes a deformation of a state in which the exhaust port is blocked.
  • the automatic steam exhausting mechanism comprises: an exhausting vane seat fixed to the side wall of the pan and having an opening corresponding to the exhaust port; fixed to the exhausting block seat a venting flap at a fixed distance, the venting flap is provided with an opening; and an automatic venting piece between the venting flap and the venting sleeve, the automatic venting
  • the exhaust fan cover is limited and deforms when the ambient temperature at the exhaust port rises to a second temperature to change from a state in which the exhaust port is blocked to a state in which the exhaust port is opened.
  • the ambient temperature at the exhaust port drops below the second temperature, a deformation occurs in a state in which the state in which the exhaust port is opened is changed to a state in which the exhaust port is blocked.
  • a coffee powder cup for holding a coffee powder or a coffee capsule is disposed under the drain port, and the coffee powder cup is sealingly connected with the pot;
  • the bottom of the cup is provided with a nozzle mechanism for controlling the outflow of the coffee according to the pressure in the coffee powder cup.
  • the nozzle mechanism is provided with an elastic film on a coffee outflow path thereof, and the elastic film is provided with a hole for allowing the coffee to flow when the pressure applied by the elastic film reaches a certain value.
  • a water inlet mechanism is disposed at a water inlet of the coffee machine, and the water inlet mechanism includes: a tank located above the pot and capable of passing the water inlet and the pot a water-filled water container; a push rod passing through the water inlet, the first end being located in the water container and the second end being located in the pot; being disposed at the first end of the push rod a shutter that is disposed at a second end of the push rod; a spring that has one end against the pot and the other end against the hand press; wherein the spring lifts the hand in a natural state thereby Pulling the shutter causes the shutter to seal the water inlet.
  • a manual exhaust mechanism is disposed on a side wall of the pan near one end of the water inlet, and the manual exhaust mechanism includes: a sidewall from the pan a hollow exhaust valve seat extending to the outside of the pan, the exhaust valve seat is in communication with the interior of the pan; a steam exhaust valve cover at one end of the exhaust port of the exhaust valve seat; a steam exhaust handle rotatably fixed at a fixed distance from the steam exhaust valve seat; wherein the steam exhaust handle is used to contact the row
  • the curved edge of the steam valve cover is eccentric with respect to the center of rotation of the exhaust steam handle, and when the steam exhausting handle is rotated to the first position, the steam exhaust valve cover functions as the steam exhausting handle
  • the exhaust port of the exhaust valve seat is blocked under force, and when the exhaust handle is rotated to the second position, the exhaust valve cover opens the exhaust port of the exhaust valve seat.
  • the exhaust handle is provided with a slot for reducing a maximum force of the exhaust handle to the exhaust valve cover when the exhaust handle is
  • an exhaust port is disposed on a side wall of the pan near the water inlet end and is provided with an exhaust mechanism
  • the exhaust mechanism includes: being fixed relative to the a limit cover at a fixed distance of the exhaust port, the limit cover is provided with a first opening for exhausting steam and a second opening facing the exhaust port; a row horizontally movable along the second opening a steam valve, wherein the exhaust valve is fixed with an automatic exhausting piece at one end of the exhaust port, and the automatic exhausting piece can generate when the ambient temperature at the exhaust port rises to a third temperature
  • the state of blocking the exhaust port becomes a deformation of a state in which the exhaust port is opened, and a state in which the exhaust port is opened when the ambient temperature at the exhaust port falls below a third temperature a deformation that becomes a state in which the exhaust port is blocked; a steam exhaust handle rotatably fixed at a fixed distance from the limit cover, wherein the exhaust handle has a shape that satisfies the following condition: The exhaust hand when
  • the coffee machine provided by the invention has the following advantages: the automatic drainage mechanism is used to control the outflow of hot water in the boiler according to the ambient temperature, the drainage structure is simplified, the volume of the coffee machine is reduced, and the pressure is generated by the pressure generated by the steam.
  • the liquid can better carry out the subsequent brewing treatment of the coffee powder; the nozzle mechanism is used to control the outflow of the coffee according to the pressure in the coffee powder cup, so that the hot water at a certain pressure and temperature can be used in the coffee powder cup.
  • Extracting the essence of coffee powder to stably produce high-quality coffee improving the safety of the coffee machine through automatic steam exhaust mechanism and manual steam exhaust mechanism; water can be easily added to the pot through the water inlet mechanism; through the micro switch Or a magnetically controlled switch simplifies the operation of the coffee machine.
  • the coffee machine of the present invention is compact in design, simple in manufacture, low in cost, safe in safety, and high in quality and stable in making coffee.
  • FIG. 1 is a schematic view showing the overall structure of a coffee machine according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing an automatic draining mechanism of the coffee machine according to Embodiment 1 of the present invention in a first working state;
  • Figure 3 is a schematic view showing an automatic draining mechanism of the coffee machine according to Embodiment 1 of the present invention in a second working state;
  • FIG. 4 is a schematic view showing an automatic steam exhaust mechanism of a coffee machine according to Embodiment 2 of the present invention in a first working state
  • Figure 5 is a schematic view showing an automatic steam exhaust mechanism of the coffee machine according to Embodiment 2 of the present invention in a second working state;
  • Figure 6 is a schematic illustration of a nozzle mechanism of a coffee machine in accordance with Embodiment 3 of the present invention.
  • Figure 7 is a schematic view showing a water inlet mechanism of the coffee machine according to Embodiment 4 of the present invention in a first working state
  • Figure 8 is a schematic view showing a water inlet mechanism of the coffee machine according to Embodiment 4 of the present invention in a second working state;
  • FIG. 9 is a schematic view showing a manual exhaust mechanism of a coffee machine according to Embodiment 5 of the present invention in a first working state
  • Figure 10 is a schematic view showing a manual operation mechanism of a coffee machine according to Embodiment 5 of the present invention in a second working state;
  • Figure 11 is a schematic view showing a manual operation mechanism of a coffee machine according to Embodiment 5 of the present invention in a third working state;
  • Figure 12 is a schematic view showing the micro switch of the coffee machine in the first working state according to Embodiment 6 of the present invention.
  • Figure 13 is a schematic view showing the micro switch of the coffee machine in a second working state according to Embodiment 6 of the present invention.
  • Figure 14 is a schematic view showing the micro switch of the coffee machine in the first working state according to Embodiment 7 of the present invention.
  • Figure 15 is a schematic view showing the micro switch of the coffee machine in a second working state according to Embodiment 7 of the present invention.
  • Figure 16 is a schematic view showing the micro switch of the coffee machine in the first working state according to Embodiment 8 of the present invention.
  • Figure 17 is a schematic view showing the micro switch of the coffee machine in a second working state according to Embodiment 8 of the present invention.
  • Figure 18 is a schematic illustration of an exhaust mechanism of a coffee machine in accordance with Embodiment 9 of the present invention.
  • FIG. 1 is a schematic view showing the overall structure of a coffee machine according to an embodiment of the present invention.
  • the innovation of the present invention mainly focuses on components related to liquid/vapor flow in the coffee machine, although the overall structure of the coffee machine is shown in cross-sectional view in Figure 1, and will be described below.
  • the overall structure shown in Fig. 1 is explained, but the overall structure shown in Fig. 1 is merely an example, and the present invention does not limit features such as a heating mechanism, a heat insulating mechanism, and an outer shape of the product. That is, those skilled in the art can apply the innovation of the present invention to a coffee machine of any configuration without being limited to the structure shown in Fig. 1, and such application falls within the scope of the present invention.
  • the heating element 9 of the coffee machine is in close contact with the outer wall of the pan 11, and likewise, the temperature controller 29 is also in close contact with the outer wall of the pan 11, which constitute the heating mechanism of the coffee machine.
  • the heat insulating jackets 3, 4, 10, and 12 are wrapped in two layers on the outer side of the heating element 9, and constitute a heat insulating mechanism of the coffee machine.
  • the power cord 8 connects the electrical components in an existing manner.
  • the coffee machine as a whole is supported by the bracket 21.
  • FIGS. 1, 2 and 3 are views showing the operation state of an automatic draining mechanism of the coffee maker according to Embodiment 1 of the present invention, and the automatic draining mechanism a will be described below with reference to Figs. 1, 2 and 3.
  • an automatic drainage mechanism a is provided at the drain port of the pan 11, which can open or close the drain port according to the ambient temperature at the drain port of the pan 11
  • the ambient temperature at the drain port referred to herein specifically refers to the temperature sensed or withstood by the automatic drain mechanism a.
  • the automatic drain mechanism a includes a drain valve cover 33 and a drain valve piece 32.
  • the drain valve cover 33 is fixed at a fixed distance from the drain port.
  • the drain valve cover 33 can be fastened to the position of the pan 11 facing the drain port.
  • the drain valve piece 32 is disposed between the drain valve cover 33 and the drain port and is limited by the drain valve cover 33.
  • FIG. 2 is a schematic view showing the automatic draining mechanism a in a first working state.
  • the ambient temperature at the drain port has not reached the first temperature at which the automatic draining mechanism a performs state switching.
  • the drain valve cover 33 presses against the periphery of the drain valve piece 32, and restricts the drain valve piece 32 to the plugging. The position of the drain port thus seals the drain.
  • FIG. 3 is a schematic view showing the automatic draining mechanism a in a second working state.
  • the drain valve piece 32 is deformed from a state in which the drain port is closed to a state in which the drain port is opened, thereby switching from the first working state to the second working state.
  • the drain port is in an open state, and the liquid flowing out from the drain port flows downward through the opening opened in the drain valve cover 33 (as indicated by an arrow).
  • the drain valve piece 32 When the ambient temperature at the drain port drops below the first temperature, the drain valve piece 32 is deformed from a state in which the drain port is opened to a state in which the drain port is closed, thereby realizing the transition from the second working state to the first working state. Switching.
  • the drain valve plate 32 is a bimetal. As shown in Figures 2 and 3, the drain valve plate 32 is curved. Before the temperature of the drain valve piece 32 reaches the first temperature, the periphery thereof is pressed by the drain valve cover 33 so that the curved convex surface of the drain valve piece 32 is pressed against the drain port to achieve the effect of sealing the drain port. When the temperature received by the drain valve piece 32 reaches the first temperature, the drain valve piece 32 is deformed from the original upper arc shape to the lower arc shape, thereby opening the drain port. On the other hand, when the temperature received by the drain valve piece 32 drops below the first temperature, the drain valve piece 32 is deformed from the lower arc shape to the upper arc shape, and is changed from the open state to the blocked state.
  • the drain valve plate 32 may be a drain valve plate 32 coated with a material for reinforcing the sealing effect on the surface of the bimetal, or may be arranged or embedded in the bimetal for reinforcement The drain valve 32 in the sealing effect material. That is to say, the drain valve piece 32 in this embodiment can realize the shape of the bimetal, the outer surface of the bimetal, the bimetal and other materials on the basis of the deformation function described above by using the bimetal. Or a flexible design of the structure or the like.
  • the drain valve cover 33 is in the shape of a bowl having an opening therethrough. In other implementations of this embodiment, the drain valve cover 33 may be of any configuration that meets the requirements of being able to position the exhaust valve plate 32 such that the exhaust valve plate 32 can operate in the first operational state and the second operation. Switching between states while having a space or opening that allows liquid to flow through.
  • the bimetal can be made of different materials, and the bimetal can collectively include two, three, four, five, and the like bimetals.
  • the first temperature at which the bimetal is deformed depends mainly on the material of the bimetal, so that the bimetal can be flexibly designed and selected as needed, and this embodiment does not Limiting the specific value of the first temperature does not limit what kind of bimetal is selected by those skilled in the art.
  • the automatic drainage mechanism a in the first embodiment has a simple structure and a small volume, and can automatically control the outflow of the liquid in the pan 11 according to the ambient temperature at the drain port of the pan 11. Accordingly, the coffee machine using the automatic drainage mechanism a is simple in manufacture, small in volume compared to the existing coffee machine, can automatically control the outflow of liquid in the pan 11, and the liquid flowing out under the pressure generated by the steam can be better. The subsequent brewing of the coffee powder is carried out.
  • FIGS. 4, 4 and 5 are views showing the operation state of an automatic steam exhausting mechanism of the coffee machine according to Embodiment 2 of the present invention, and the automatic steam exhausting mechanism b will be described below with reference to Figs. 1, 4 and 5.
  • an exhaust port for discharging steam and an ambient temperature for opening according to the exhaust port of the pan 11 are opened on the side wall of the pan 11 adjacent to the water inlet end.
  • the automatic steam exhausting mechanism b that blocks the steam exhaust port where the ambient temperature at the steam exhaust port specifically refers to the temperature sensed or withstood by the automatic steam exhausting mechanism b.
  • the automatic steam exhausting mechanism b includes an exhausting vane holder 6, an exhausting vane cover 7, and an automatic exhausting vane 5.
  • the exhaust manifold 6 is fixed to a side wall (for example, an outer side wall) of the pot 11 and has an opening corresponding to the exhaust port. For example, as shown in FIGS. 4 and 5, the exhaust manifold 6 abuts against the exhaust port of the pan 11, and the opening is connected to the exhaust port.
  • the ventilating cover 7 is fixed at a fixed distance with respect to the ventilating seat 6, for example, fixed to the venting seat 6, and the venting cover 7 is provided with an opening for allowing passage of steam.
  • the automatic exhausting piece 5 is located between the exhausting vane cover 7 and the exhausting vane holder 6, and is restrained by the exhausting vane cover 7.
  • FIG. 4 is a schematic view showing the automatic steam exhausting mechanism b in a first working state.
  • the ambient temperature at the exhaust steam outlet has not reached the second temperature for causing the automatic steam exhausting mechanism b to perform state switching.
  • the exhaust sheet cover 7 presses the periphery of the automatic exhausting vane 5, and restricts the automatic exhausting vane 5 to the position of the blocked exhaust port to thereby block the exhaust port.
  • FIG. 5 is a schematic view showing the automatic steam exhausting mechanism b in the second working state.
  • the automatic exhaust vane 5 is generated by the plug exhaust port.
  • the state changes to the state in which the state of the exhaust port is opened, thereby switching from the first working state to the second working state.
  • the exhaust port is in an open state, and the steam passing through the exhaust port is discharged through an opening formed in the exhaust cover 7 (as indicated by an arrow).
  • the automatic exhaust plate 5 When the ambient temperature at the exhaust port drops below the second temperature, the automatic exhaust plate 5 generates a deformation from a state in which the exhaust port is opened to a state in which the exhaust port is blocked, thereby realizing a state from the second working state to Switching of the first working state.
  • the automatic venting piece 5 of the second embodiment may be a bimetal as in the case of the drain valve piece 32 mentioned in the first embodiment.
  • the working principle and working state of the automatic exhausting vane 5 please refer to the previous description of the draining valve disc 32, which will not be described here.
  • the exhaust sheet cover 7 in the second embodiment may be in the shape of a bowl having an opening.
  • the exhaust sheet cover 7 may be any structure that satisfies the following requirements: the position of the automatic exhaust sheet 5 can be restricted so that the automatic exhaust sheet 5 can be switched between the first working state and the second working state, while There is a space or opening that allows steam to pass through.
  • the automatic steam exhausting mechanism b in the second embodiment has a simple structure and a small volume, and can automatically control the discharge of steam in the bladder 11 according to the ambient temperature at the exhaust port of the boiler.
  • the coffee machine adopting the automatic steam exhausting mechanism b is simple in manufacture and small in volume compared with the existing coffee machine, and can automatically control the discharge of steam in the pot 11 and has high safety.
  • the automatic steam exhausting mechanism b can well position the automatic venting vane 5 by the cooperation of the ventilating sheet cover 7 and the venting vane holder 6.
  • the ventilating piece holder 6 can be omitted, and the venting piece cover 7 is fixed at a fixed position with respect to the side wall of the pan 11, for example, fixed to the position of the vent port on the outer side wall of the pan 11.
  • the automatic venting piece 5 is restricted by the venting flap cover 7 so as to be switchable between the first working state and the second working state.
  • the coffee machine is disposed below the drain opening of the pot 11 with a coffee powder cup 40 for holding the coffee powder or the coffee capsule 38, and the coffee powder cup 40 is sealingly connected with the pot 11 and At the bottom of the coffee powder cup 40 is provided a nozzle mechanism for controlling the outflow of the coffee according to the pressure in the coffee powder cup 40.
  • a sealing ring 35 having a locking member 34 is welded to one end of the drain port of the pan 11, and a sealing ring 36 is provided in the sealing ring 35 for mounting the coffee cup 40 to the pan.
  • a sealing ring 36 is provided in the sealing ring 35 for mounting the coffee cup 40 to the pan.
  • the coffee powder cup 40 is fastened to the cup buckle 37 for mating with the sealing collar 35, and the coffee powder cup holder 18 is fastened to the cup buckle 37 by screws 39.
  • FIG. 6 is a schematic illustration of a nozzle mechanism of a coffee machine in accordance with Embodiment 3 of the present invention.
  • the nozzle mechanism includes a nozzle holder 17, a nozzle 19, a nozzle cover 20, a screen 42, and a constant pressure film 41.
  • the nozzle holder 17 is fastened to the bottom opening of the coffee powder cup 40, the constant pressure film 41 is disposed at the liquid discharge port of the nozzle holder 17, and the constant pressure film 41 is pressed by the nozzle 19 embedded in the nozzle holder 17, thereby realizing Removable mounting of the constant pressure film 41.
  • the nozzle cover 20, in which the screen 42 is disposed covers the nozzle 19 from below.
  • the constant pressure film 41 is disposed on the coffee outflow path of the nozzle mechanism, and the constant pressure film 41 may be an elastic film (for example, a rubber sheet) provided with a hole for the elasticity
  • the coffee is allowed to flow when the pressure on the film reaches a certain value.
  • the hole opened in the elastic film is forced to undergo a deformation from the closure to the conduction, thereby allowing the coffee to flow out. That is to say, the constant pressure film 41 can pass through the holes opened therein so that the liquid entering the coffee powder cup 40 cannot be immediately discharged to form a certain pressure, which is advantageous for extracting the essence of the coffee powder.
  • the specific size and number of the holes, the material of the elastic film, and the like are not specifically limited.
  • the constant pressure film 41 is detachably arranged in the present embodiment, those skilled in the art can easily think of the structure in which the constant pressure film 41 is integrated with the nozzle 19 or the nozzle holder 17 or both, which also belongs to The scope of protection of the present invention. Further, the description of the structure of the nozzle mechanism in the present embodiment is merely an example, and those skilled in the art can apply the constant pressure film 41 in the present embodiment to the nozzle mechanism of any configuration.
  • the pressure in the coffee powder cup 40 can be controlled by the constant pressure film 41, so that the essence of the coffee powder can be fully extracted in the coffee powder cup 40 with hot water under a certain pressure and temperature. Thereby producing a stable high quality coffee.
  • FIG. 7 and 8 are views showing the operation state of a water inlet mechanism of a coffee machine according to Embodiment 4 of the present invention.
  • the water inlet mechanism c will be described below with reference to Figs. 1, 7, and 8.
  • the water inlet mechanism c is disposed at the water inlet of the coffee machine, and includes a water cup 2, a push rod 24, a hand 22, a shutter 25, and a spring 23 as a water container.
  • the water cup 2 is located above the pot 11 and can be in fluid communication with the pot 11 through the water inlet.
  • the lid of the water cup 2 is covered with a lid 1.
  • a push rod 24 that passes through the water inlet has a first end located within the water cup 2 and a second end located within the bowl 11.
  • a hand 22 is provided at the first end of the push rod 24, and a shutter 25 is disposed at the second end of the push rod.
  • the spring 23 is placed over the push rod 24.
  • FIG. 7 is a schematic view showing the water inlet mechanism c in a first working state, and a spring 23 sleeved on the push rod 24, which is in a natural state (without being subjected to an external force), jacking up the hand 24 to pull up the shutter 25, the shutter 25 is blocked into the nozzle. And when steam is generated in the pan 11, the pressure inside the pan 11 increases. The sealing effect of the strong door 25 on the water inlet. As shown in FIG. 8 , the water inlet mechanism c is in the second working state. When the hand press 22 is pressed, the push rod 24 pushes the shutter 25 downward to release the sealing of the water inlet opening of the shutter 25 to make the liquid from the water inlet. Flow into the pot 11 (as indicated by the arrow).
  • FIGS. 9, 10 and 11 are schematic views showing the operation of a manual steam exhausting mechanism of a coffee machine according to Embodiment 5 of the present invention.
  • the manual exhaust mechanism d will be described below with reference to Figs. 1 and 9-11.
  • a manual exhaust mechanism d is disposed on a side wall of the pot 11 adjacent to one end of the water inlet. It includes a steam exhaust valve seat 26, a steam exhaust valve cover 27, and an exhaust steam handle 28.
  • the exhaust valve seat 26 extends from the side wall of the pot 11 to the outside of the pot 11, and the exhaust valve seat 26 is hollow and communicates with the inside of the pot 11.
  • the exhaust valve cover 27 is sleeved at one end of the exhaust port of the exhaust valve seat 25 (right end in the drawing).
  • the exhaust handle 28 is rotatably fixed at a fixed distance relative to the exhaust valve seat 26.
  • the arcuate edge of the exhaust handle 28 for contacting the exhaust valve cover 27 is eccentric with respect to the center of rotation of the exhaust handle 28, and when the exhaust handle 28 is rotated to the first position, the row
  • the steam bonnet cover 27 blocks the exhaust port of the exhaust valve seat 26 under the force of the exhaust handle 28, and when the exhaust handle 28 is rotated to the second position, the exhaust valve cover 27 opens the row of the exhaust valve seat 26.
  • the steam port i.e., the steam vent cover 27, is not subjected to the force applied by the steam exhaust handle 28 to block the steam exhaust port.
  • FIG. 9 a schematic diagram of the manual exhaust mechanism d in the first operational state is shown.
  • the exhaust handle 28 In the first working state, the exhaust handle 28 is at a position that makes the contact position with the exhaust valve cover 27 farthest from the center of rotation of the exhaust handle 28, and presses the exhaust valve cover 27 to block the discharge.
  • FIG. 10 is a schematic view showing the manual exhaust mechanism d in the second working state.
  • the exhaust handle 28 In the second operating state, the exhaust handle 28 is in a position to be in contact with the exhaust valve cover 27 (or a position for contacting the exhaust valve cover 27) relatively close to the center of rotation of the exhaust handle 28.
  • the exhaust valve cover 27 can be moved in the direction of the exhaust handle 28 under the pressure inside the pot 11, thereby releasing the plugging of the exhaust port of the exhaust valve seat 26 and discharging the steam.
  • the exhaust handle 28 is open for reducing the maximum force of the exhaust handle 28 to the exhaust valve cover 27 when the exhaust handle 28 is rotated to the first position. Slot.
  • FIG. 11 a schematic diagram of the manual exhaust mechanism d in the third operational state is shown.
  • the manual steam exhausting mechanism d When the manual steam exhausting mechanism d is in the first working state, due to the existence of the groove, when the pressure inside the boiler 11 reaches a certain value, the steam pushes the steam exhaust valve cover 27 against the material tension of the steam exhausting handle 28, so that the groove The deformation thereby releases the displacement space to the exhaust valve cover 27.
  • the manual exhaust mechanism d is changed from the first working state in which the exhaust port is blocked to the third operating state in which the exhaust port is opened, and the exhaust handle 28 does not need to be rotated.
  • the steam in the pan 11 can be discharged in a simple structure to improve the safety of the coffee machine.
  • Figure 12 is a schematic view showing the first operational state of the micro switch of the coffee machine according to Embodiment 6 of the present invention.
  • the micro switch 14 is fixed in the bottom cover 13, and the button end of the micro switch 14 is mounted.
  • the keys of the microswitch 14 are in an open (ie, not pressed) state due to the self-weight of the magnet 15.
  • Figure 13 is a schematic view showing a second operational state of the microswitch of the coffee maker according to Embodiment 6 of the present invention.
  • Fig. 1 when the coffee powder cup 40 is mounted by the coffee powder cup holder 18, it is fixed to the coffee powder cup holder 18.
  • the magnet 16 in the position opposite to the position of the magnet 15 is close to the magnet 15, and the magnetism 15 is displaced by the feature of the same pole repulsive to achieve the effect of pressing the button of the micro switch 14, so that the micro switch 14 is switched from the first working state to the first working state.
  • Two working states When the magnet 16 is away from the magnet 15, the switching from the second working state to the first working state is realized by the self-weight of the magnet 15.
  • the turning on and off of the power source is achieved by the pressing and opening of the keys of the micro switch 14.
  • a micro switch 14 designed according to the principle of the same polarity repelling is described in Embodiment 6.
  • the micro switch 14 designed according to the principle of the heteropolar attraction is described below.
  • the magnet 15 is mounted at the end of the key lever of the micro switch 14.
  • Figure 14 is a schematic view showing the first operational state of the microswitch of the coffee maker according to Embodiment 7 of the present invention, at which time the button lever of the microswitch 14 is kept open by the action of a spring (not shown). status.
  • Figure 15 is a schematic view showing a second operational state of the microswitch of the coffee maker according to Embodiment 7 of the present invention.
  • the effect of the button of the micro switch 14 is lowered, thereby switching the micro switch 14 from the first operating state to the second operating state.
  • the microswitch 14 is switched from the second operating state to the first operating state by the action of the spring.
  • a magnetron switch is used instead of the microswitches of Embodiments 6 and 7.
  • Figure 16 Shown as a schematic diagram of the first operational state of the magnetron switch of the coffee maker in accordance with embodiment 8 of the present invention, at this time, two contacts (not shown) inside the magnetron switch 14' are in an open state.
  • Figure 17 is a schematic view showing a second operational state of the magnetic switch of the coffee machine according to Embodiment 8 of the present invention, when the magnet 16 corresponding to the magnetic control switch 14' is fixed to the magnetic position of the magnetic powder switch 14'.
  • the switch 14' When the switch 14' is controlled, the two contacts inside the magnetron switch 14' are turned on, so that the magnetron switch 14' is switched from the first operating state to the second operating state.
  • the magnet 16 When the magnet 16 is away from the magnetron switch 14', the magnetron switch 14' is switched from the second operating state to the first operating state.
  • FIG. 18 is a schematic illustration of an exhaust mechanism of a coffee machine in accordance with Embodiment 9 of the present invention.
  • an exhaust port is formed in a side wall of the pot 11 adjacent to one end of the water inlet, and an exhaust mechanism e is disposed.
  • the exhaust mechanism e includes an exhaust valve seat 30, a limit cover 31, an exhaust valve 43 and an exhaust handle 44, which are respectively described below.
  • the exhaust valve seat 30 is in close contact with the exhaust port of the pan 11, and the opening of the exhaust valve seat 30 is connected to the exhaust port.
  • the limit cover 31 is fixed at a fixed distance with respect to the exhaust port, for example, as shown in Fig. 18, and is fixed to the steam trap seat 30, and of course, may be fixed to the pan 11.
  • a first opening (not shown) for exhausting and a second opening facing the exhaust port are opened in the limiting cover 31.
  • the exhaust valve 43 is horizontally or approximately horizontally movable along the second opening, and an automatic exhausting plate 45 is fixed to one end of the exhaust port (ie, the exhaust valve 43 includes an automatic exhausting plate 45 and is used for fixing the automatic row
  • the steam piece 45 and the automatic exhausting piece 45 extend to the direction away from the automatic exhausting piece 45, and the automatic exhausting piece 45 can be blocked by the ambient temperature at the exhaust port rising to the third temperature.
  • the state of the exhaust port becomes a deformation of the state in which the exhaust port is opened, and when the ambient temperature at the exhaust port drops below the third temperature, a state in which the state of opening the exhaust port is changed to a state in which the exhaust port is blocked is generated. deformation.
  • the ambient temperature at the exhaust port refers to the temperature sensed or withstood by the automatic exhaust plate 45.
  • the exhaust handle 44 is rotatably fixed at a fixed distance relative to the limit cover 31, and the exhaust handle 44 has a shape that satisfies the following conditions: when the exhaust handle 44 is rotated from the second position to the first position, the exhaust handle 44 pushes the exhaust valve 43 from the position away from the exhaust port along the second opening to the position of the blocked exhaust port, wherein the position of the blocked exhaust port means that the exhaust valve 43 is not at the ambient temperature of the exhaust port When the third temperature is reached, the position of the exhaust port can be blocked.
  • the ninth embodiment is a combination of the modifications of the second embodiment and the fifth embodiment.
  • the automatic exhausting of the exhaust valve seat 43 can be performed when the exhaust handle 44 is in the first position as shown in FIG.
  • the sheet 45 automatically controls the sealing and opening of the exhaust port according to the temperature it bears; the sealing and opening of the exhaust port can also be manually controlled by the exhaust handle 44, for example, the ambient temperature at the exhaust port reaches The above manual control is performed before the third temperature.
  • the function of the automatic exhaust plate 45 is similar to that of the automatic exhaust plate 5 in the second embodiment; the state when the exhaust handle 44 is in the second position and FIG. 10
  • the state of the illustrated exhaust handle 28 is similar and will not be described here.
  • the exhaust handle 44 may have some or all of the features of the exhaust handle 28 of Embodiment 5.
  • the exhaust valve mechanism e can positionally restrict the exhaust valve 43 through the exhaust valve seat 30 and the limit cover 31.
  • the steam exhaust valve seat 30 can be omitted, and only the limit cover 31 can position the exhaust valve 43. That is, the exhaust mechanism may include the limit cover 31, the exhaust valve 43 and the exhaust handle 44.
  • the coffee machine may comprise a combination of some or all of the features recited in any two or more of the above embodiments.

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Abstract

一种咖啡机，包括锅胆（11）和用于为所述锅胆（11）加热的加热机构，所述锅胆（11）具有入水口和排水口，在所述锅胆（11）的排水口处设置有用于根据所述排水口处的环境温度开通或封堵所述排水口的自动排水机构（a）；通过自动排水机构（a）来根据环境温度控制锅胆（11）内热水的流出，简化了排水结构、减小了咖啡机体积，并且在由蒸汽产生的压力的作用下流出的液体，能更好地进行后续对咖啡粉的冲泡处理，提高咖啡品质。

Description

一种咖啡机
本申请要求于2014年8月13日提交中国专利局、申请号为201410397878.3、发明名称为“一种咖啡机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种咖啡机。
背景技术
咖啡机已经成为人们日常工作和生活中普遍使用的产品。现有的大型咖啡机体积庞大、结构复杂，导致其维护和使用比较麻烦，不便于在家庭和个人中推广使用。现有的小型咖啡机由于采用换热器、电磁阀等复杂的部件控制煮水腔内热水的流出，导致其体积仍然较大，并且只能实现简单的煮水后冲咖啡粉的动作，制作的咖啡品质不稳定。
发明内容
本发明的目的是提供一种结构简单、体积小巧、能自动控制锅胆内热水的流出的咖啡机。
本发明的目的通过以下技术措施来实现：
一种咖啡机，包括锅胆和用于为所述锅胆加热的加热机构，所述锅胆具有入水口和排水口，在所述锅胆的排水口处设置有用于根据所述排水口处的环境温度开通或封堵所述排水口的自动排水机构。
在本发明的一种实施方式中，所述自动排水机构包括：固定在相对于所述排水口的固定距离处的排水阀盖，所述排水阀盖上设有开口；和位于所述排水阀盖和所述排水口之间的排水阀片，所述排水阀片由所述排水阀盖限位并在所述排水口处的环境温度升高至第一温度时产生由封堵所述排水口的状态变为开通所述排水口的状态的形变，在所述排水口处的环境温度下降至低于第一温度时产生由开通所述排水口的状态变为封堵所述排水口的状态的形变。
在本发明的另一种实施方式中，在所述锅胆的靠近所述入水口一端的侧壁 上开设有排汽口并配置有用于根据所述排汽口处的环境温度开通或封堵所述排汽口的自动排汽机构。
其中，优选地，所述自动排汽机构包括：固定在相对于所述排汽口的固定距离处的排汽片盖，所述排汽片盖上设有开口；和位于所述排汽片盖和所述排汽口之间的自动排汽片，所述自动排汽片由所述排汽片盖限位并在所述排汽口处的环境温度升高至第二温度时产生由封堵所述排汽口的状态变为开通所述排汽口的状态的形变，在所述排汽口处的环境温度下降至低于第二温度时产生由开通所述排汽口的状态变为封堵所述排汽口的状态的形变。
或者优选地，所述自动排汽机构包括：固定在所述锅胆的侧壁且开设有与所述排汽口对应的开口的排汽片座；固定在相对于所述排汽片座的固定距离处的排汽片盖，所述排汽片盖上设有开口；和位于所述排汽片盖和所述排汽片座之间的自动排汽片，所述自动排汽片由所述排汽片盖限位并在所述排汽口处的环境温度升高至第二温度时产生由封堵所述排汽口的状态变为开通所述排汽口的状态的形变，在所述排汽口处的环境温度下降至低于第二温度时产生由开通所述排汽口的状态变为封堵所述排汽口的状态的形变。
在本发明的又一实施方式中，在所述排水口的下方设置有用于盛放咖啡粉或咖啡囊的咖啡粉杯，所述咖啡粉杯与所述锅胆密封连接；在所述咖啡粉杯的底部设置有用于根据所述咖啡粉杯内的压力控制咖啡的流出的喷嘴机构。
其中，优选地，所述喷嘴机构在其咖啡流出路径上设置有弹性胶片，所述弹性胶片上设有用于在所述弹性胶片所承受的压力达到一定值时允许咖啡流过的孔。
在本发明的再一种实施方式中，在所述咖啡机的入水口处设置有进水机构，所述进水机构包括：位于所述锅胆上方并且能通过所述入水口与所述锅胆流体连通的盛水容器；穿过所述入水口、第一端位于所述盛水容器内并且第二端位于所述锅胆内的推杆；设置在所述推杆的第一端的手按；设置在所述推杆的第二端的活门；一端顶住所述锅胆且另一端顶住所述手按的弹簧；其中，所述弹簧在自然状态下顶起所述手按从而拉起所述活门，使所述活门密封所述入水口。
在本发明的更一种实施方式中，在所述锅胆的靠近所述入水口一端的侧壁上设有手动排汽机构，所述手动排汽机构包括：从所述锅胆的侧壁向所述锅胆外部延伸的中空的排汽阀座，所述排汽阀座与所述锅胆的内部连通；套在所述 排汽阀座的排汽口一端的排汽阀盖；可转动地固定在相对于所述排汽阀座的固定距离处的排汽手柄；其中，所述排汽手柄用于接触所述排汽阀盖的弧形边相对于所述排汽手柄的转动中心是偏心的，并且，当所述排汽手柄转动至第一位置时，所述排汽阀盖在所述排汽手柄的作用力下封堵所述排汽阀座的排汽口，当所述排汽手柄转动至第二位置时，所述排汽阀盖开通所述排汽阀座的排汽口。可选地，所述排汽手柄上开设有用于在所述排汽手柄转动至第一位置时减小所述排汽手柄对所述排汽阀盖的最大作用力的槽。
在本发明的其它实施方式中，在所述锅胆的靠近所述入水口一端的侧壁上开设有排汽口并配置有排汽机构，所述排汽机构包括：固定在相对于所述排汽口的固定距离处的限位盖，所述限位盖上开设有用于排汽的第一开口和正对所述排汽口的第二开口；能沿所述第二开口水平移动的排汽阀，所述排汽阀正对所述排汽口的一端固定有自动排汽片，所述自动排汽片能在所述排汽口处的环境温度升高至第三温度时产生由封堵所述排汽口的状态变为开通所述排汽口的状态的形变，在所述排汽口处的环境温度下降至低于第三温度时产生由开通所述排汽口的状态变为封堵所述排汽口的状态的形变；可转动地固定在相对于所述限位盖的固定距离处的排汽手柄，其中，所述排汽手柄具有满足如下条件的形状：当所述排汽手柄从第二位置转动至第一位置时，所述排汽手柄推动所述排汽阀由远离所述排汽口的位置沿所述第二开口移动至封堵所述排汽口的位置。
采用本发明提供的咖啡机具有以下优点：通过自动排水机构来根据环境温度控制锅胆内热水的流出，简化了排水结构、减小了咖啡机体积，并且在由蒸汽产生的压力作用下流出的液体，能更好地进行后续对咖啡粉的冲泡处理；通过喷嘴机构来根据咖啡粉杯内的压力控制咖啡的流出，使得在咖啡粉杯内能以处于一定压强和温度下的热水提取咖啡粉的精华，从而稳定地制作出高品质的咖啡；通过自动排汽机构和手动排汽机构提高了咖啡机的安全性；通过进水机构能够方便地为锅胆加水；通过微动开关或磁控开关能简化对咖啡机的操作。
总体而言，本发明的咖啡机设计精巧、制造简易、成本低廉、安全性好并且制作的咖啡品质高且稳定。
附图说明
图1是根据本发明实施例的一种咖啡机的整体结构示意图；
图2是根据本发明实施例1的咖啡机的一种自动排水机构处于第一工作状态的示意图；
图3是根据本发明实施例1的咖啡机的一种自动排水机构处于第二工作状态的示意图；
图4是根据本发明实施例2的咖啡机的一种自动排汽机构处于第一工作状态的示意图；
图5是根据本发明实施例2的咖啡机的一种自动排汽机构处于第二工作状态的示意图；
图6是根据本发明实施例3的咖啡机的一种喷嘴机构的示意图；
图7是根据本发明实施例4的咖啡机的一种进水机构处于第一工作状态的示意图；
图8是根据本发明实施例4的咖啡机的一种进水机构处于第二工作状态的示意图；
图9是根据本发明实施例5的咖啡机的一种手动排汽机构处于第一工作状态的示意图；
图10是根据本发明实施例5的咖啡机的一种手动排汽机构处于第二工作状态的示意图；
图11是根据本发明实施例5的咖啡机的一种手动排汽机构处于第三工作状态的示意图；
图12是根据本发明实施例6的咖啡机的微动开关处于第一工作状态的示意图；
图13是根据本发明实施例6的咖啡机的微动开关处于第二工作状态的示意图；
图14是根据本发明实施例7的咖啡机的微动开关处于第一工作状态的示意图；
图15是根据本发明实施例7的咖啡机的微动开关处于第二工作状态的示意图；
图16是根据本发明实施例8的咖啡机的微动开关处于第一工作状态的示意图；
图17是根据本发明实施例8的咖啡机的微动开关处于第二工作状态的示意图；
图18是根据本发明实施例9的咖啡机的一种排汽机构的示意图。
具体实施方式
以下将结合附图和具体实施方式对本发明作进一步详细说明。
图1为根据本发明实施例的一种咖啡机的整体结构示意图。需要说明的是，本发明的创新之处主要集中在咖啡机中与液体/蒸汽流动相关的部件，虽然在图1中以剖视图的形式对咖啡机的整体结构进行了展示，并且将在下文对图1所示的整体结构进行说明，但是图1所示的整体结构仅为示例，本发明并不对诸如加热机构、隔热机构、产品外部形状之类的特征进行限制。也就是说，本领域技术人员可以将本发明的创新之处应用于任何结构的咖啡机中而不限于图1所示的结构，并且这种应用落在本发明的保护范围内。
参照图1，咖啡机的发热体9紧贴锅胆11的外壁，同样地，控温器29也紧贴锅胆11的外壁，二者构成咖啡机的加热机构。隔热套3、4、10、12分两层地包裹在发热体9的外侧，构成咖啡机的隔热机构。电源线8以现有方式连接电器配件。咖啡机整体由支架21支撑。
【实施例1】
图2和图3是根据本发明实施例1的咖啡机的一种自动排水机构的工作状态示意图，下面结合图1、图2和图3对自动排水机构a进行说明。
如图1、图2和图3所示，在锅胆11的排水口处设置有自动排水机构a，该自动排水机构a能够根据锅胆11的排水口处的环境温度开通或封堵排水口，此处提及的排水口处的环境温度具体是指由自动排水机构a感应或承受的温度。
在本实施例中，自动排水机构a包括排水阀盖33和排水阀片32。其中，排水阀盖33固定在相对于排水口的固定距离处。例如，排水阀盖33可以紧固在锅胆11上正对排水口的位置。排水阀片32设置于排水阀盖33和排水口之间，并由排水阀盖33限位。
如图2所示为自动排水机构a处于第一工作状态的示意图，在第一工作状态下，排水口处的环境温度还未达到使自动排水机构a进行状态切换的第一温度。此时，排水阀盖33压住排水阀片32的周边，并将排水阀片32限制在封堵 排水口的位置从而封堵排水口。
如图3所示为自动排水机构a处于第二工作状态的示意图。当排水口处的环境温度达到第一温度时，排水阀片32产生由封堵排水口的状态变为开通排水口的状态的形变，从而实现从第一工作状态到第二工作状态的切换。此时，排水口呈开通的状态，并且从排水口流出的液体经过在排水阀盖33上开设的开口向下流动(如箭头所示)。
在排水口处的环境温度下降到低于第一温度时，排水阀片32产生由开通排水口的状态变为封堵排水口的状态的形变，从而实现从第二工作状态到第一工作状态的切换。
在本实施例的一种实现方式中，排水阀片32为双金属片。如图2和图3所示，排水阀片32呈弧形。在排水阀片32承受的温度达到第一温度之前，其周边被排水阀盖33压住从而使排水阀片32的弧形凸面紧压排水口，达到封堵排水口的效果。在排水阀片32承受的温度达到第一温度时，排水阀片32产生从原来的上弧形状变为下弧形状的形变，从而开通排水口。而在排水阀片32承受的温度下降至低于第一温度时，排水阀片32发生从下弧形状变为上弧形状的形变从而由开通状态变为封堵状态。
在本实施例的其它实现方式中，排水阀片32可以是在双金属片表面涂覆有用于加强密封效果的材料的排水阀片32，也可以是将双金属片布置或嵌入在用于加强密封效果的材料中的排水阀片32。也就是说，本实施例中的排水阀片32可以在采用双金属片实现前文所述的形变功能的基础上，在双金属片的形状、双金属片的外表面、双金属片与其它材料或结构的配合等方面进行灵活的设计而形成。
在本实施例的一种实现方式中，排水阀盖33为其上开设有开口的碗状。在本实施例的其它实现方式中，排水阀盖33可以是满足下述要求的任意结构：能够对排汽阀片32进行位置限制使排汽阀片32能在第一工作状态和第二工作状态间切换，同时具有允许液体流过的空间或开口。
需要说明的是，本领域技术人员应当理解，双金属片可以采用不同的材料制成，并且双金属片作为统称可以包括两层、三层、四层、五层等的双金属。本领域技术人员同样应当理解，双金属片发生形变的第一温度主要取决于双金属片的材料，因此可以根据需要灵活地设计和选择双金属片，而本实施例并不 对第一温度的具体数值进行限制，也不限制本领域技术人员选择什么样的双金属片。
本实施例1中的自动排水机构a，结构简单、体积小，能根据锅胆11的排水口处的环境温度自动控制锅胆11内液体的流出。相应地，采用自动排水机构a的咖啡机制造简单、体积相对现有咖啡机较小，能自动控制锅胆11内液体的流出，并且在由蒸汽产生的压力作用下流出的液体，能更好地进行后续对咖啡粉的冲泡处理。
【实施例2】
图4和图5是根据本发明实施例2的咖啡机的一种自动排汽机构的工作状态示意图，下面结合图1、图4和图5对自动排汽机构b进行说明。
如图1、图4和图5所示，在锅胆11的靠近入水口一端的侧壁上开设有用于排放蒸汽的排汽口和用于根据锅胆11的排汽口处的环境温度开通或封堵排汽口的自动排汽机构b，此处，排汽口处的环境温度具体是指由自动排汽机构b感应或承受的温度。
在本实施例中，自动排汽机构b包括排汽片座6、排汽片盖7和自动排汽片5。排汽片座6固定在锅胆11的侧壁(例如，外侧壁)上且开设有与排汽口对应的开口。例如，如图4和图5所示，排汽片座6紧贴着锅胆11的排汽口，且开口与排汽口相连。排汽片盖7固定在相对于排汽片座6的固定距离处，例如，固定在排汽片座6上，并且排汽片盖7上设有用于允许蒸汽通过的开口。自动排汽片5位于排汽片盖7和排汽片座6之间，由排汽片盖7进行限位。
如图4所示为自动排汽机构b处于第一工作状态的示意图，在第一工作状态下，排汽口处的环境温度还未达到使自动排汽机构b进行状态切换的第二温度。此时，排汽片盖7压住自动排汽片5的周边，并将自动排汽片5限制在封堵排汽口的位置从而封堵排汽口。
如图5所示为自动排汽机构b处于第二工作状态的示意图。当排汽口处的环境温度升高至第二温度时，例如由于蒸汽的不断产生导致排汽口处的环境温度上升至第二温度时，自动排汽片5产生由封堵排汽口的状态变为开通排汽口的状态的形变，从而实现从第一工作状态到第二工作状态的切换。此时，排汽口呈开通的状态，并且通过排汽口的蒸汽经由在排汽片盖7上开设的开口排出(如箭头所示)。
在排汽口处的环境温度下降到低于第二温度时，自动排汽片5产生由开通排汽口的状态变为封堵排汽口的状态的形变，从而实现从第二工作状态到第一工作状态的切换。
如实施例1中提及的排水阀片32那样，本实施例2中的自动排汽片5也可以是双金属片。关于自动排汽片5的工作原理和工作状态的说明请参见前文对于排水阀片32的说明，此处不赘述。
如实施例1中提及的排水阀盖33那样，本实施例2中的排汽片盖7也可以是其上开设有开口的碗状。而实际上，排汽片盖7可以是满足下述要求的任意结构：能够对自动排汽片5进行位置限制使自动排汽片5能在第一工作状态和第二工作状态间切换，同时具有允许蒸汽通过的空间或开口。
本实施例2中的自动排汽机构b，结构简单、体积小，能根据锅胆11的排汽口处的环境温度自动控制锅胆11内蒸汽的排出。相应地，采用自动排汽机构b的咖啡机制造简单、体积相对现有咖啡机较小，能自动控制锅胆11内蒸汽的排出，安全性高。
【实施例2的变形例】
在实施例2中，自动排汽机构b通过排汽片盖7和排汽片座6的配合能很好地对自动排汽片5进行位置限制。而在本变形例中，可以省略排汽片座6，排汽片盖7固定在相对于锅胆11侧壁的固定位置处，例如固定在锅胆11外侧壁上正对排汽口的位置，并且通过排汽片盖7对自动排汽片5进行限制使其能在第一工作状态和第二工作状态间切换。
【实施例3】
在本实施例3中，参照图1，咖啡机在锅胆11的排水口下方配置有用于盛放咖啡粉或咖啡囊38的咖啡粉杯40，咖啡粉杯40与锅胆11密封连接，并且在咖啡粉杯40的底部设置有用于根据咖啡粉杯40内的压力控制咖啡的流出的喷嘴机构。
如图1所示，在锅胆11的排水口一端焊接有套有锁紧构件34的密封托环35，在密封托环35内设置有密封圈36，用于在咖啡粉杯40安装到锅胆11下方时起到密封作用。咖啡粉杯40紧扣在用于与密封托环35配合的杯扣37上，咖啡粉杯座18通过螺钉39紧固在杯扣37上。
图6是根据本发明实施例3的咖啡机的一种喷嘴机构的示意图。参照图1 和图6，喷嘴机构包括喷嘴座17、喷嘴19、喷嘴罩20、滤网42和恒压胶片41。其中，喷嘴座17紧固于咖啡粉杯40底部开口处，在喷嘴座17的排液口布置有恒压胶片41，并通过嵌入喷嘴座17的喷嘴19将恒压胶片41压紧，从而实现恒压胶片41的可拆卸安装。内部布置有滤网42的喷嘴罩20则从下方罩住喷嘴19。
在本实施例中，恒压胶片41设置在喷嘴机构的咖啡流出路径上，所述恒压胶片41可以是其上设有孔的弹性胶片(例如，橡胶片)，所述孔用于在弹性胶片承受的压力达到一定值时允许咖啡流过。例如，当咖啡粉杯40内的压力达到一定值时，迫使弹性胶片上开设的孔发生由封闭到导通的形变，从而允许咖啡流出。也就是说，恒压胶片41能够通过其上开设的孔使得进入咖啡粉杯40内的液体无法立即排走从而形成一定的压力，这种压力有利于提取咖啡粉的精华。在本实施例中，不对孔的具体大小、数目、弹性胶片的材料等进行具体限定。
虽然在本实施例中以可拆卸的方式布置恒压胶片41，但本领域技术人员可以容易的想到恒压胶片41与喷嘴19或喷嘴座17或该二者设为一体的结构，这同样属于本发明的保护范围。并且，在本实施例中对喷嘴机构的结构的说明仅为举例，本领域技术人员可以在任意结构的喷嘴机构中应用本实施例中的恒压胶片41。
采用本实施例所提供的咖啡机，能通过恒压胶片41控制咖啡粉杯40内的压强，使得在咖啡粉杯40内能以处于一定压强和温度下的热水充分提取咖啡粉的精华，从而制作出稳定的高品质咖啡。
【实施例4】
图7和图8是根据本发明实施例4的咖啡机的一种进水机构的工作状态示意图。下面结合图1、图7和图8对进水机构c进行说明。
进水机构c设置在咖啡机的入水口处，包括作为盛水容器的盛水杯2、推杆24、手按22、活门25和弹簧23。其中，盛水杯2位于锅胆11上方，能通过入水口与锅胆11流体连通。盛水杯2上方盖有杯盖1。穿过入水口的推杆24，其第一端位于盛水杯2内并且第二端位于锅胆11内。手按22设置在推杆24的第一端，活门25设置在推杆的第二端。弹簧23套在推杆24上。
如图7所示为进水机构c处于第一工作状态的示意图，套在推杆24上的弹簧23，其在自然状态(不受外力作用的状态)下顶起手按24从而拉起活门25，使活门25封堵入水口。并且当锅胆11内产生蒸汽时，锅胆11内部的压力会增 强活门25对入水口的封堵效果。如图8所示为进水机构c处于第二工作状态的示意图，当按下手按22时，推杆24推动活门25向下移动，解除活门25对于进水口的封堵，使液体从入水口流入锅胆11(如箭头所示)。
采用本实施例提供的咖啡机，能方便地为锅胆11添加液体。
【实施例5】
图9、图10和图11是根据本发明实施例5的咖啡机的一种手动排汽机构的工作状态示意图。下面结合图1和图9-11对手动排汽机构d进行说明。
如图1所示，在锅胆11的靠近入水口一端的侧壁上设置有手动排汽机构d。其包括排汽阀座26、排汽阀盖27和排汽手柄28。其中，排汽阀座26从锅胆11的侧壁向锅胆11外部延伸，排汽阀座26是中空的并与锅胆11的内部连通。排汽阀盖27套在排汽阀座25的排汽口一端(图中的右端)。排汽手柄28可转动地固定在相对于排汽阀座26的固定距离处。
在本实施例中，排汽手柄28用于接触排汽阀盖27的弧形边相对于排汽手柄28的转动中心是偏心的，并且，当排汽手柄28转动至第一位置时，排汽阀盖27在排汽手柄28的作用力下封堵排汽阀座26的排汽口，当排汽手柄28转动至第二位置时，排汽阀盖27开通排汽阀座26的排汽口，即，排汽阀盖27不会受到排汽手柄28施加的用于封堵排汽口的作用力。
更具体而言，如图9所示为手动排汽机构d处于第一工作状态的示意图。在第一工作状态下，排汽手柄28处在使其与排汽阀盖27的接触位置相对于排汽手柄28的转动中心最远的位置，并压迫排汽阀盖27使其封堵排汽阀座26的排汽口。如图10所示为手动排汽机构d处于第二工作状态的示意图。在第二工作状态下，排汽手柄28处在使其与排汽阀盖27的接触位置(或用于与排汽阀盖27接触的位置)相对于排汽手柄28的转动中心相对较近的位置，此时，排汽阀盖27可在锅胆11内部的压力作用下向排汽手柄28的方向移动，从而解除对排汽阀座26的排汽口的封堵，排出蒸汽。
在本实施例的一种实现方式中，排汽手柄28上开设有用于在排汽手柄28转动至所述第一位置时减小排汽手柄28对所述排汽阀盖27的最大作用力的槽。
更具体而言，如图11所示为手动排汽机构d处于第三工作状态的示意图。在手动排汽机构d处于第一工作状态时，由于所述槽的存在，当锅胆11内部的压力达到一定值时，蒸汽推动排汽阀盖27克服排汽手柄28的材料张力，使槽 变形从而释放位移空间给排汽阀盖27。于是，手动排汽机构d由封堵排汽口的第一工作状态变为开通排汽口的第三工作状态，而排汽手柄28无需发生转动。
采用本实施例提供的咖啡机，能以简单的结构排出锅胆11内的蒸汽，提高咖啡机的安全性。
【实施例6】
图12是根据本发明实施例6的咖啡机的微动开关的第一工作状态的示意图，结合图1可见，微动开关14固定在底盖13内，并且微动开关14的按键端装有磁石15。在第一工作状态下，因磁石15的自重使微动开关14的按键处于张开(即未按下)状态。
图13是根据本发明实施例6的咖啡机的微动开关的第二工作状态的示意图，结合图1可见，当通过咖啡粉杯座18安装咖啡粉杯40时，固定在咖啡粉杯座18中的与磁石15位置相对的磁石16接近磁石15，利用同极相斥的特点推动磁石15位移达到按下微动开关14的按键的效果，使微动开关14由第一工作状态切换为第二工作状态。而当磁石16远离磁石15时，则通过磁石15的自重实现第二工作状态到第一工作状态的切换。
通过微动开关14的按键的按下和张开实现电源的接通和切断。
【实施例7】
在实施例6中描述了根据同极相斥原理设计的微动开关14。下面对根据异极相吸原理设计的微动开关14进行说明。
在本实施例中，微动开关14的按键杠杆末端安装有磁石15。如图14所示为根据本发明实施例7的咖啡机的微动开关的第一工作状态的示意图，此时，微动开关14的按键杠杆通过弹簧(未示出)的作用保持在张开状态。如图15所示为根据本发明实施例7的咖啡机的微动开关的第二工作状态的示意图。当通过咖啡粉杯座18安装咖啡粉杯40时，固定在咖啡粉杯座18中的与磁石15位置相对的磁石16接近磁石15，利用异极相吸的特点拉动磁石15向下位移达到按下微动开关14的按键的效果，从而使微动开关14由第一工作状态切换至第二工作状态。当磁石16远离磁石15时，微动开关14通过弹簧作用由第二工作状态切换至第一工作状态。
【实施例8】
在本实施例中，采用磁控开关代替实施例6和7中的微动开关。如图16所 示为根据本发明实施例8的咖啡机的磁控开关的第一工作状态的示意图，此时，磁控开关14’内部的两个触点(未示出)处于开路状态。如图17所示为根据本发明实施例8的咖啡机的磁控开关的第二工作状态的示意图，当固定在咖啡粉杯座18内的位置与磁控开关14’对应的磁石16接近磁控开关14’时，磁控开关14’内部的两个触点接通，使得磁控开关14’由第一工作状态切换至第二工作状态。当磁石16远离磁控开关14’时，磁控开关14’则由第二工作状态切换至第一工作状态。
【实施例9】
图18是根据本发明实施例9的咖啡机的一种排汽机构的示意图。如图18所示，在锅胆11的靠近入水口一端的侧壁上开设有排汽口并配置有排汽机构e。其中，排汽机构e包括排汽阀座30、限位盖31、排汽阀43和排汽手柄44，下面分别进行说明。
如图18所示，排汽阀座30紧贴着锅胆11的排汽口，且排汽阀座30的开口与排汽口相连。限位盖31固定在相对于排汽口的固定距离处，例如，如图18所示固定在排汽阀座30上，当然也可以固定在锅胆11上。在限位盖31上开设有用于排汽的第一开口(未图示)和正对排汽口的第二开口。排汽阀43能沿第二开口水平或近似水平地移动，其正对排汽口的一端固定有自动排汽片45(即，排气阀43包括自动排汽片45和用于固定自动排汽片45且自自动排汽片45向远离自动排汽片45方向延伸的延伸部)，该自动排汽片45能在排汽口处的环境温度升高至第三温度时产生由封堵排汽口的状态变为开通排汽口的状态的形变，在排汽口处的环境温度下降至低于第三温度时产生由开通排汽口的状态变为封堵排汽口的状态的形变。此处，排汽口处的环境温度是指由自动排汽片45感应或承受的温度。
排汽手柄44可转动地固定在相对于限位盖31的固定距离处，排汽手柄44具有满足如下条件的形状：当排汽手柄44从第二位置转动至第一位置时，排汽手柄44推动排汽阀43由远离排汽口的位置沿第二开口移动至封堵排汽口的位置，其中，封堵排汽口的位置是指排汽阀43在排汽口的环境温度未达到第三温度时能够封堵排汽口的位置。
本实施例9是对实施例2和实施例5进行变形后的结合。在本实施例9中，可以在排汽手柄44处于如图18所示的第一位置时，由排汽阀座43的自动排汽 片45根据其所承受的温度自动控制对排汽口的封堵和开通；还可以通过排汽手柄44手动控制对排汽口的封堵和开通，例如，在排汽口处的环境温度达到第三温度之前进行上述手动控制。
在本实施例中，排汽手柄44处于第一位置时，自动排汽片45的作用与实施例2中的自动排汽片5类似；排汽手柄44处于第二位置时的状态与图10所示排汽手柄28的状态类似，此处不赘述。
在本实施例的一种实现方式中，排汽手柄44可以具有实施例5中的排汽手柄28的部分或全部特征。
【实施例9的变形例】
在实施例9中，排汽机构e通过排汽阀座30和限位盖31能很好的对排气阀43进行位置限制。而在本变形例中，可以省略排汽阀座30，仅由限位盖31对排汽阀43进行位置限制。即，排汽机构可以包括限位盖31、排汽阀43和排汽手柄44，对于三者的说明请参照实施例9中的相应说明，此处不赘述。
在本发明的其它实施例中，咖啡机可以包括上述任意两个或两个以上实施例所记载的部分或全部特征的组合。
以上结合具体实施方式对本发明进行了具体说明，这些具体实施方式仅仅是示例性的，不能以此限定本发明之保护范围，本领域技术人员在不脱离本发明实质的前提下可以进行各种修改、变化或替换。因此，依照本发明所作的各种等同变化，仍属于本发明所涵盖的范围。

Claims (11)

  1. 一种咖啡机，包括锅胆和用于为所述锅胆加热的加热机构，所述锅胆具有入水口和排水口，其特征在于：
    在所述锅胆的排水口处设置有用于根据所述排水口处的环境温度开通或封堵所述排水口的自动排水机构。
  2. 如权利要求1所述的咖啡机，其特征在于，所述自动排水机构包括：
    固定在相对于所述排水口的固定距离处的排水阀盖，所述排水阀盖上设有开口；和
    位于所述排水阀盖和所述排水口之间的排水阀片，所述排水阀片由所述排水阀盖限位并在所述排水口处的环境温度升高至第一温度时产生由封堵所述排水口的状态变为开通所述排水口的状态的形变，在所述排水口处的环境温度下降至低于第一温度时产生由开通所述排水口的状态变为封堵所述排水口的状态的形变。
  3. 如权利要求1所述的咖啡机，其特征在于，在所述锅胆的靠近所述入水口一端的侧壁上开设有排汽口并配置有用于根据所述排汽口处的环境温度开通或封堵所述排汽口的自动排汽机构。
  4. 如权利要求3所述的咖啡机，其特征在于，所述自动排汽机构包括：
    固定在相对于所述排汽口的固定距离处的排汽片盖，所述排汽片盖上设有开口；和
    位于所述排汽片盖和所述排汽口之间的自动排汽片，所述自动排汽片由所述排汽片盖限位并在所述排汽口处的环境温度升高至第二温度时产生由封堵所述排汽口的状态变为开通所述排汽口的状态的形变，在所述排汽口处的环境温度下降至低于第二温度时产生由开通所述排汽口的状态变为封堵所述排汽口的状态的形变。
  5. 如权利要求3所述的咖啡机，其特征在于，所述自动排汽机构包括：
    固定在所述锅胆的侧壁且开设有与所述排汽口对应的开口的排汽片座；
    固定在相对于所述排汽片座的固定距离处的排汽片盖，所述排汽片盖上设有开口；和
    位于所述排汽片盖和所述排汽片座之间的自动排汽片，所述自动排汽片由所述排汽片盖限位并在所述排汽口处的环境温度升高至第二温度时产生由封堵所述排汽口的状态变为开通所述排汽口的状态的形变，在所述排汽口处的环境温度下降至低于第二温度时产生由开通所述排汽口的状态变为封堵所述排汽口的状态的形变。
  6. 如权利要求1-5中任一项所述的咖啡机，其特征在于，
    在所述排水口的下方设置有用于盛放咖啡粉或咖啡囊的咖啡粉杯，所述咖啡粉杯与所述锅胆密封连接；
    在所述咖啡粉杯的底部设置有用于根据所述咖啡粉杯内的压力控制咖啡的流出的喷嘴机构。
  7. 如权利要求6所述的咖啡机，其特征在于，
    所述喷嘴机构在其咖啡流出路径上设置有弹性胶片，所述弹性胶片上设有用于在所述弹性胶片所承受的压力达到一定值时允许咖啡流过的孔。
  8. 如权利要求1所述的咖啡机，其特征在于，在所述咖啡机的入水口处设置有进水机构，所述进水机构包括：
    位于所述锅胆上方并且能通过所述入水口与所述锅胆流体连通的盛水容器；
    穿过所述入水口、第一端位于所述盛水容器内并且第二端位于所述锅胆内的推杆；
    设置在所述推杆的第一端的手按；
    设置在所述推杆的第二端的活门；
    一端顶住所述锅胆且另一端顶住所述手按的弹簧；
    其中，所述弹簧在自然状态下顶起所述手按从而拉起所述活门，使所述活门密封所述入水口。
  9. 如权利要求1所述的咖啡机，其特征在于，在所述锅胆的靠近所述入水口一端的侧壁上设有手动排汽机构，所述手动排汽机构包括：
    从所述锅胆的侧壁向所述锅胆外部延伸的中空的排汽阀座，所述排汽阀座与所述锅胆的内部连通；
    套在所述排汽阀座的排汽口一端的排汽阀盖；
    可转动地固定在相对于所述排汽阀座的固定距离处的排汽手柄；
    其中，所述排汽手柄用于接触所述排汽阀盖的弧形边相对于所述排汽手柄的转动中心是偏心的，并且，当所述排汽手柄转动至第一位置时，所述排汽阀盖在所述排汽手柄的作用力下封堵所述排汽阀座的排汽口，当所述排汽手柄转动至第二位置时，所述排汽阀盖开通所述排汽阀座的排汽口。
  10. 如权利要求9所述的咖啡机，其特征在于，所述排汽手柄上开设有用于在所述排汽手柄转动至第一位置时减小所述排汽手柄对所述排汽阀盖的最大作用力的槽。
  11. 如权利要求1所述的咖啡机，其特征在于，在所述锅胆的靠近所述入水口一端的侧壁上开设有排汽口并配置有排汽机构，所述排汽机构包括：
    固定在相对于所述排汽口的固定距离处的限位盖，所述限位盖上开设有用于排汽的第一开口和正对所述排汽口的第二开口；
    能沿所述第二开口水平移动的排汽阀，所述排汽阀正对所述排汽口的一端固定有自动排汽片，所述自动排汽片能在所述排汽口处的环境温度升高至第三温度时产生由封堵所述排汽口的状态变为开通所述排汽口的状态的形变，在所述排汽口处的环境温度下降至低于第三温度时产生由开通所述排汽口的状态变为封堵所述排汽口的状态的形变；
    可转动地固定在相对于所述限位盖的固定距离处的排汽手柄，其中，所述排汽手柄具有满足如下条件的形状：当所述排汽手柄从第二位置转动至第一位置时，所述排汽手柄推动所述排汽阀由远离所述排汽口的位置沿所述第二开口移动至封堵所述排汽口的位置。
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