WO2022252495A1

WO2022252495A1 - Multifunctional drip coffee machine

Info

Publication number: WO2022252495A1
Application number: PCT/CN2021/129201
Authority: WO
Inventors: 卓燊; 刘启昌
Original assignee: 珠海市点金创意产品设计有限公司
Priority date: 2021-06-04
Filing date: 2021-11-08
Publication date: 2022-12-08
Also published as: CN113116143A

Abstract

A multifunctional drip coffee machine, comprising a base (1), a brewing bin (2), a coffee pot (3), a kettle (4), and a connecting column (5). A water inlet and an electric connector which are separated and arranged side by side are formed in the base (1); the kettle (4) is placed on the base (1), and is adapted to the water inlet and the electric connector; the coffee pot (3) and the kettle (4) can both be taken out from the base (1) and moved away; a water pump (6) is provided in the base (1); a water inlet of the water pump (6) is communicated with the water inlet of the base (1) by means of a hot water pipe (7), and is communicated into the kettle (4); a water outlet of the water pump (6) is communicated into the brewing bin (2) by means of the hot water pipe (7) arranged in the connecting column (5); an electric heating element (40) is provided at the bottom of the kettle (4); the electric heating element (40) is electrically connected to the electric connector in the base (1); and after water in the kettle (4) is heated and boiled, the water is pumped into the brewing bin (2) via the water pump (6) to brew coffee powder in the brewing bin (2), and brewed coffee flows into the coffee pot (3) through the bottom of the brewing bin (2).

Description

A multifunctional drip coffee machine

technical field

The invention relates to a coffee brewing appliance, in particular to a multifunctional drip coffee machine.

Background technique

Coffee is one of the three major beverages in the world. In the prior art, the coffee brewing appliance is mainly used on the desktop of a home or office, which is connected to the mains through a cable, and uses water, coffee powder, powder packets, coffee capsules, etc. to brew coffee. For the existing drip coffee machine, the water in the water tank is continuously heated and vaporized through the heat pipe, and the vaporized water condenses and drips from the top cover of the coffee machine to the coffee basket to extract coffee. Boiling water while brewing, the time efficiency is relatively low. The brewing time of coffee is greatly affected by the efficiency of the heating module. The whole process of coffee making takes a long time, and the temperature of the coffee made is low, and the concentration of the extracted coffee is not high. In addition, the water tank of the existing drip coffee machine is fixed with the machine body, and cannot be moved at will, which makes it inconvenient to add water, and the amount of water added at one time is not easy to control, which easily leads to different coffee concentrations each time. In the existing solution, when brewing coffee, the water tank must be filled with suitable water according to the number of cups of brewed coffee to ensure that the water is just used up. If too much water is filled, the remaining water will be left for a long time before the next use In the coffee machine, it is not easy to clean, and the cold water left in the coffee machine for a long time will breed bacteria. Moreover, the existing drip coffee machine can only be used when brewing coffee, which has relatively large limitations.

If the coffee making and electric kettle are combined, since the electrical connection part is in the center of the kettle, and then the water is taken from the center and sent to the coffee making part, there will be a risk of water leakage leading to a short circuit of the electrical connection part, and the safety will be reduced.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a coffee making speed, high temperature, self-contained mobile hot water kettle, easy operation, boiling water and coffee making functions in one, high safety, and Versatile and versatile drip coffee maker.

The technical solution adopted in the present invention is: the present invention includes a base, a brewing chamber, a coffee pot, a kettle, and a connecting post, the two ends of the connecting post are respectively connected with the base and the brewing chamber, and the coffee pot is placed On the base, and the top is adapted to the coffee outlet of the brewing chamber, the base is provided with a separate water inlet and an electrical connection port arranged side by side, the kettle is placed on the base, and The water inlet and the electrical connection port are compatible, and the coffee pot and the kettle can be removed from the base, and a water pump is provided in the base, and the water inlet of the water pump passes through the hot water The pipe communicates with the water inlet of the base and leads into the kettle, the water outlet of the water pump leads into the brewing chamber through the hot water pipe arranged in the connecting column, and the kettle The bottom of the kettle is equipped with an electric heating element, and the electric heating element is electrically connected to the electric connection port on the base. The coffee powder in the brewing chamber is brewed, and the brewed coffee flows into the coffee pot through the bottom of the brewing chamber.

The top of the brewing chamber is provided with a reversible upper cover assembly, the upper cover assembly is provided with a hot water spray chamber, the bottom of the hot water spray chamber is provided with several spray heads, and the connecting column The hot water pipe inside leads into the hot water spray chamber, and the hot water is sprayed into the brewing chamber through the spray head.

The electrical connection port of the base includes a lower coupler, and the bottom of the kettle is provided with an upper coupler, and the upper coupler is electrically connected with the lower coupler to control the electric heating of the kettle. component power.

The water inlet of the base includes a lower water inlet element, the bottom of the lower water inlet element communicates with the hot water pipe connected to the water inlet of the water pump, and the middle part of the lower water inlet element is sleeved with a fixed and top Stretching spring, the head of the lower water inlet element is provided with a water inlet hole leading to the central cavity, the bottom of the kettle is provided with an upper water outlet element, and the top of the inner cavity of the upper water outlet element is in contact with the inner cavity of the kettle. cavity, the bottom of the upper water outlet element is fixedly connected to the water plug, the center of the water plug is provided with a central hole, the inner cavity of the upper water outlet element is provided with a pressing block, and the pressing block is connected to the water outlet. A limit valve ball is set between the water blockage, and a down pressure spring is set between the pressure block and the inner cavity top of the upper water outlet element. When there is no external force, the down pressure spring presses down the pressure Block and the limit valve ball, the limit valve ball is pressed into the inside of the water plug, and is tightly fitted and sealed with the water plug, the center hole of the water plug is in contact with the upper outlet The inner cavity of the nozzle element is isolated from water, and when the kettle is placed on the base, the head of the lower water inlet element is inserted into the central hole blocked by the lower water, and the limit valve ball is lifted upwards And the pressure block, when in the equilibrium position, the limit valve ball is separated from the water shutoff, and the water inlet hole of the lower water inlet element communicates with the inner cavity of the upper water outlet element, so The water in the kettle is passed into the water pump, and at the same time, the central hole of the lower water plug is tightly fitted and sealed with the head of the lower water inlet element. When the kettle is separated from the base, the lower Under the elastic force of the compression spring and the fixing and extension spring, the head of the lower water inlet element is gradually separated from the water sealing, and each element returns to the state when there is no external force, and the bottom of the kettle is not sealed. water leakage.

The water inlet of the base also includes an upwardly protruding water retaining cofferdam, the water retaining cofferdam is used to prevent overflow at the water inlet and is used for positioning the bottom of the kettle.

The size of the head of the lower water inlet element decreases gradually, and the water inlet hole is located on the side.

The shape of the bottom of the pressure block is adapted to the upper part of the limit valve ball.

The water shutoff is an elastic element made of silica gel or rubber.

A coffee filter is arranged in the brewing chamber.

A control panel is arranged on the base, and a control circuit board is arranged inside the base.

The beneficial effects of the present invention are: since the present invention includes a base, a brewing bin, a coffee pot, a kettle, and a connecting post, the two ends of the connecting post are respectively connected with the base and the brewing bin, and the coffee pot is placed on On the base, and the top is compatible with the coffee outlet of the brewing chamber, the base is provided with a separate water inlet and an electrical connection port arranged side by side, the kettle is placed on the base, and is connected to the The water inlet and the electrical connection port are compatible, the coffee pot and the kettle can be removed from the base, and a water pump is provided in the base, and the water inlet of the water pump passes through the hot water pipe It communicates with the water inlet of the base and leads into the kettle, the water outlet of the water pump leads into the brewing chamber through the hot water pipe arranged in the connecting column, and the water outlet of the kettle An electric heating element is provided at the bottom, and the electric heating element is electrically connected to the electrical connection port on the base. After the water in the kettle is heated and boiled, it is pumped into the brewing chamber by the water pump, and the The coffee powder in the brewing chamber is brewed, and the brewed coffee flows into the coffee pot through the bottom of the brewing chamber; The coffee brewing appliance and the water boiling appliance are organically integrated, which saves necessary living appliances and space for life, and can be used to make coffee, and can also be used to boil water separately through the kettle. When used to make coffee, After the kettle starts to boil water to the preset temperature, the water pump accurately pumps the hot water to the brewing chamber to brew coffee powder, so as to realize fast coffee brewing, and the coffee making speed is fast. Improve the brewing efficiency and quality of coffee. According to the test, 8-10 cups of coffee can be brewed in 6-8 minutes, and the temperature of making coffee is high, which can reach above 92°C. Just the right amount of water, the remaining water is stored in the kettle, and the remaining boiled water can be used for other purposes, such as brewing milk, tea, etc., and will not be cleaned up because it has not been used for a long time. Provide better experience and enjoyment for those who want to enjoy it. Since the water inlet and the electrical connection port on the base are separated and arranged side by side, the potential safety hazards of water leakage and electric leakage caused by the concentration of water and electricity interfaces in the middle are avoided. Therefore, the coffee making speed of the present invention is fast. The temperature is high, and it comes with a mobile kettle, which is easy to operate, has the functions of boiling water and making coffee, high safety, and multi-purpose.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a multifunctional drip coffee machine according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the overall structure of the multifunctional drip coffee machine according to the embodiment of the present invention when the upper cover assembly is opened and the kettle is taken out;

Fig. 3 is a top structural schematic diagram of a multifunctional drip coffee machine according to an embodiment of the present invention;

Fig. 4 is a schematic cross-sectional structure diagram at A-A shown in Fig. 3;

Fig. 5 is a schematic cross-sectional structure diagram at BB shown in Fig. 3

Fig. 6 is a schematic diagram of an enlarged structure at C shown in Fig. 5;

Fig. 7 is a schematic structural view of the lower water inlet element of the embodiment of the present invention.

Detailed ways

As shown in Figures 1 to 7, this embodiment includes a base 1, a brewing chamber 2, a coffee pot 3, a kettle 4, and a connecting column 5, and the two ends of the connecting column 5 are connected to the base 1 and the brewing chamber respectively. 2, the base 1 is provided with a control panel 10, the base 1 is provided with a control circuit board, and is drawn out through a power cord (not shown in the figure), and the coffee pot 3 is placed on the base 1 and the top is compatible with the coffee outlet of the brewing chamber 2, the brewing chamber 2 is provided with a coffee filter 23, and the base 1 is provided with separate water inlets and electrical connection ports arranged side by side. The kettle 4 is placed on the base 1 and is compatible with the water inlet and the electrical connection port. The coffee pot 3 and the kettle 4 can be removed from the base 1, so The base 1 is provided with a water pump 6, the water inlet of the water pump 6 communicates with the water inlet of the base 1 through a hot water pipe 7, and passes into the kettle 4, and the water outlet of the water pump 6 passes through The hot water pipe 7 arranged in the connecting column 5 leads into the brewing chamber 2, the bottom of the kettle 4 is provided with an electric heating element 40, and the electric heating element 40 is connected to the electrical connection port on the base 1 Electrically connected, after the water in the kettle 4 is heated and boiled, it is pumped into the brewing chamber 2 through the water pump 6, and the coffee powder in the brewing chamber 2 is brewed, and the brewed coffee is passed through the The bottom of the brewing chamber 2 flows into the coffee pot 3 .

The top of the brewing chamber 2 is provided with a reversible upper cover assembly 20, the upper cover assembly 20 is provided with a hot water spray chamber 21, and the bottom of the hot water spray chamber 21 is provided with several spray heads 22. The hot water pipe 7 in the connecting column 5 leads into the hot water spray chamber 21, and the hot water is sprayed into the brewing chamber 2 through the spray head 22, so that the coffee making time Shortened, and the temperature of the coffee made is higher, and the coffee concentration is higher.

The electrical connection port of the base 1 includes a lower coupler 14, and the bottom of the kettle 4 is provided with an upper coupler 44. When the kettle 4 is placed on the base 1, the upper coupler 44 and the The lower coupler 14 is adapted to be electrically connected to supply power to the electric heating element 40 of the kettle 4 .

The structure of the kettle 4 is similar to that of the existing electric kettle, except that the bottom is different. The water inlet of the base 1 includes a lower water inlet element 15, the bottom of the lower water inlet element 15 communicates with the hot water pipe 7 connected to the water inlet of the water pump 6, and the middle part of the lower water inlet element 15 Socketed with a fixed and top extension spring 12, the head of the lower water inlet element 15 is provided with a water inlet hole 16 leading to the central cavity, the bottom of the kettle 4 is provided with an upper water outlet element 45, and the upper outlet The top of the inner cavity 41 of the water outlet element 45 communicates with the inner cavity of the kettle 4, and the bottom of the upper water outlet element 45 is fixedly connected to the water blocking 9, and the water blocking 9 is an elastic element made of silica gel or rubber. A center hole is provided at the center of the water shutoff 9, a briquetting block 91 is provided in the inner cavity 41 of the upper water outlet element 45, and a limit valve ball is arranged between the briquetting block 91 and the water shutoff 9 8. The shape of the bottom of the pressing block 91 is adapted to the upper part of the limit valve ball 8, and a downward pressure spring 92 is arranged between the pressing block 91 and the top of the inner cavity 41 of the upper water outlet element 45 , when there is no external force, the press-down spring 92 presses down the pressure block 91 and the limit valve ball 8, and the limit valve ball 8 is pressed into the inside of the water sealing 9, and is connected with the The water shutoff 9 is tightly fitted and sealed, and the central hole of the water shutoff 9 is isolated from the inner cavity 41 of the upper water outlet element 45 without water. When the kettle 4 is placed on the base 1, the The head of the lower water inlet element 15 is inserted into the central hole of the lower water plug 9, and the limit valve ball 8 and the briquetting block 91 are lifted upwards. When in the equilibrium position, the limit valve ball 8 and the The water shutoff 9 is separated, the water inlet 16 of the lower water inlet element 15 communicates with the inner cavity 41 of the upper water outlet element 45, and the water in the kettle 4 is passed into the water pump 6 At the same time, the central hole of the lower water plug 9 is tightly fitted and sealed with the head of the lower water inlet element 15. When the kettle 4 is separated from the base 1, the pressing spring 92 and the fixed And under the elastic force of the extension spring 12, the head of the lower water inlet element 15 is gradually disengaged from the water shutoff 9, and each element returns to the state when there is no external force, and the bottom of the kettle 4 is sealed and watertight; In this embodiment, the size of the head of the lower water inlet element 15 gradually decreases, and the water inlet hole 16 is located on the side, which is more conducive to the gradual detachment of the lower water inlet element 15 from the lower water plug 9, further Avoid water leakage; the water inlet of the base 1 also includes an upwardly protruding water retaining cofferdam 13, which is used to prevent overflow at the water inlet and is used for positioning the bottom of the kettle 4. In this embodiment, through the above structure, the circuit short circuit caused by dripping water is avoided in many aspects, so the safety is high, and the possibility of mixing water and electricity is completely eliminated.

The present invention overcomes the defects and deficiencies of the existing products, overcomes the prejudice of the prior art in the field, integrates the coffee brewing appliance and the boiling water appliance organically, saves necessary living appliances and saves space for life, and can It is used to make coffee, and the kettle 4 can also be used to boil water separately. When it is used to make coffee, the kettle 4 starts to boil water to a preset temperature, and then the water pump 6 accurately pumps the amount of hot water The coffee powder is sprayed into the brewing chamber 2 through the spray head 22 to brew the coffee powder, so as to realize rapid brewing of coffee. The speed of making coffee is fast, which improves the brewing efficiency and quality of coffee. 8-10 cups of coffee can be brewed in 6-8 minutes, and the temperature for making coffee is high, which can reach above 92°C. The amount of water pumped into the brewing chamber 2 by the present invention is just right, and the remaining water is stored in the kettle 4, the remaining boiling water can be used for other purposes, such as brewing milk, tea, etc., and will not be cleaned up due to long-term unused use, which provides convenience for life and better experience and enjoyment for users. The water inlet and the electrical connection port on the base are separated and arranged side by side, and an upwardly protruding water retaining cofferdam 13 is set, which avoids the hidden danger of water leakage and electric leakage caused by the concentration of water and electricity interfaces in the middle, so the coffee making speed of the present invention is fast , high temperature, self-contained mobile kettle, easy to operate, the functions of boiling water and making coffee are integrated, high safety, and multi-purpose.

The invention can be widely used in the field of coffee brewing appliances.

Claims

A multifunctional drip coffee machine, characterized in that it includes a base (1), a brewing chamber (2), a coffee pot (3), a kettle (4), and a connecting column (5), and the two connecting columns (5) The ends are respectively connected with the base (1) and the brewing chamber (2), the coffee pot (3) is placed on the base (1), and the top is connected with the coffee outlet of the brewing chamber (2) Matching, the base (1) is provided with separate water inlets and electrical connection ports arranged side by side, the kettle (4) is placed on the base (1), and is connected to the water inlet and the The electric connection port is compatible, and the coffee pot (3) and the kettle (4) can be taken out from the base (1) and removed, and the base (1) is provided with a water pump (6). The water inlet of the water pump (6) communicates with the water inlet of the base (1) through the hot water pipe (7), and passes into the kettle (4), and the water outlet of the water pump (6) passes through The hot water pipe (7) arranged in the connecting column (5) leads into the brewing chamber (2), and the bottom of the kettle (4) is provided with an electric heating element (40), and the electric heating element ( 40) Electrically connected to the electrical connection port on the base (1), after the water in the kettle (4) is heated and boiled, it is pumped into the brewing chamber (2) by the water pump (6) , the coffee powder in the brewing chamber (2) is brewed, and the brewed coffee flows into the coffee pot (3) through the bottom of the brewing chamber (2).
The multifunctional drip coffee machine according to claim 1, characterized in that: the top of the brewing chamber (2) is provided with a reversible upper cover assembly (20), and the upper cover assembly (20) is provided with a heating A water spray chamber (21), the bottom of the hot water spray chamber (21) is provided with several shower heads (22), and the hot water pipe (7) in the connecting column (5) leads to the In the hot water spray chamber (21), hot water is sprayed into the brewing chamber (2) through the spray head (22).
The multifunctional drip coffee machine according to claim 1, characterized in that: the electrical connection port of the base (1) includes a lower coupler (14), and the bottom of the kettle (4) is provided with an upper coupler (44 ), the upper coupler (44) and the lower coupler (14) are adapted to be electrically connected to supply power to the electric heating element (40) of the kettle (4).
The multifunctional drip coffee machine according to claim 1, characterized in that: the water inlet of the base (1) includes a lower water inlet element (15), and the bottom of the lower water inlet element (15) is in contact with the water pump The hot water pipe (7) connected to the water inlet of (6) communicates, and the middle part of the lower water inlet element (15) is sleeved with a fixed and top-extending spring (12), and the lower water inlet element (15) The head of the kettle (4) is provided with a water inlet hole (16) leading to the central cavity, and the bottom of the kettle (4) is provided with an upper water outlet element (45), and the inner cavity (41) of the upper water outlet element (45) The top communicates with the inner cavity of the kettle (4), the bottom of the upper water outlet element (45) is fixedly connected to the water plug (9), the center of the water plug (9) is provided with a central hole, and the upper A briquetting block (91) is provided in the inner cavity (41) of the water outlet element (45), and a limit valve ball (8) is provided between the briquetting block (91) and the water shutoff (9). A press-down spring (92) is provided between the pressure block (91) and the top of the inner cavity (41) of the upper water outlet element (45). When there is no external force, the press-down spring (92) presses down the The briquetting block (91) and the limit valve ball (8), the limit valve ball (8) is pressed into the inside of the sewer plug (9) and is closely attached to the sewer plug (9) seal, the central hole of the water shutoff (9) is isolated from the inner cavity (41) of the upper water outlet element (45) without water, when the kettle (4) is placed on the base (1) At this time, the head of the lower water inlet element (15) is inserted into the central hole of the lower water plug (9), and the limit valve ball (8) and the pressure block (91) are lifted up, In the equilibrium position, the limit valve ball (8) is separated from the water shutoff (9), and the water inlet hole (16) of the lower water inlet element (15) is connected to the upper water outlet element ( 45), the inner chamber (41) is connected, the water in the kettle (4) is passed into the water pump (6), and the central hole of the water shutoff (9) is connected with the lower water inlet element (15) ) tightly fits and seals. When the kettle (4) is separated from the base (1), under the elastic force of the pressing spring (92) and the fixing and extending spring (12), The head of the lower water inlet element (15) is gradually separated from the water shutoff (9), and each element returns to the state without external force, and the bottom of the kettle (4) is sealed and watertight.
The multifunctional drip coffee machine according to claim 4, characterized in that: the water inlet of the base (1) also includes an upwardly protruding water retaining cofferdam (13), and the water retaining cofferdam (13) is used to It is used to prevent water from overflowing at the water inlet, and is used for positioning the bottom of the kettle (4).
The multifunctional drip coffee machine according to claim 4, characterized in that: the size of the head of the lower water inlet element (15) decreases gradually, and the water inlet hole (16) is located on the side.
The multifunctional drip coffee machine according to claim 4, characterized in that: the shape of the bottom of the pressing block (91) is adapted to the upper part of the limit valve ball (8).
The multi-functional drip coffee machine according to claim 4, characterized in that: the drain plug (9) is an elastic element made of silica gel or rubber.
The multifunctional drip coffee machine according to claim 1, characterized in that: a coffee filter (23) is provided inside the brewing chamber (2).
The multifunctional drip coffee machine according to claim 1, characterized in that: the base (1) is provided with a control panel (10), and the base (1) is provided with a control circuit board.