WO2019041549A1

WO2019041549A1 - Coffee machine

Info

Publication number: WO2019041549A1
Application number: PCT/CN2017/109779
Authority: WO
Inventors: 金文�; 胡伟; 卿宙
Original assignee: 金文�; 胡伟; 卿宙
Priority date: 2017-08-30
Filing date: 2017-11-07
Publication date: 2019-03-07
Also published as: CN107361645A; CN107361645B

Abstract

Disclosed is a coffee machine, comprising a main machine (1), a coffee cup (2), and a processing funnel (3) capable of smashing or stirring coffee raw materials and also capable of filtering coffee liquid, wherein a first water inlet (11) is provided on the main machine (1); the processing funnel (3) comprises an inner funnel (31) for holding the coffee raw materials, and an outer funnel (32); a side wall of the inner funnel (31) is a filter screen (312), and a first water outlet (321) is provided on the outer funnel (32); when the processing funnel (3) is installed on the main machine (1), the inner funnel (31) is sheathed inside the outer funnel (32), and a first accommodation cavity (33) that is in communication with the first water outlet (321) is formed between the inner and outer funnels; the first water inlet (11) is in communication with an inner cavity of the inner funnel (31), and the first water outlet (321) can be in communication with the interior of the coffee cup (2); and an area between the inner funnel (31) and the main machine (1), and an area between an opening of the inner funnel (31) and an opening of the outer funnel (32) are both sealed. By improving the overall structure in a brand new way, the micro pressure principle is introduced into the coffee machine, and not only are the coffee extraction rate and the purity of the coffee beverage improved on the basis that the time spent making coffee is effectively shortened, but the cost of the self-prepared coffee is also low.

Description

Coffee machine

Technical field

The invention belongs to the technical field of household appliances, and in particular relates to a coffee machine.

Background technique

Coffee is one of the most popular drinks in the world. It can bring joy and excitement to people. As people's living standards continue to improve, there is an increasing pursuit of homemade coffee and coffee flavors. The coffee machine is a general name for brewing coffee machines, and it is the best choice for people to make homemade coffee drinks. Today, coffee machines that are active on the market are mainly drip coffee machines and capsule coffee machines.

However, for a drip coffee machine, there are many drawbacks due to the fact that it needs to be vented above the coffee hopper for holding the coffee powder to operate under no pressure, such as:

(1) The heat is easily lost, resulting in a low extraction rate of coffee powder (only about 18%), and the brewing concentration is low;

(2) It only relies on the gravity of the coffee powder to filter. If the filter mesh is designed too densely, it is difficult to drip and brew, which prolongs the production time of the coffee drink. On the contrary, if the filter mesh is designed too sparsely (such as The current drip coffee machine has a mesh size of up to 80-100 mesh, and the brewed coffee contains more dregs, which greatly affects the taste.

For the capsule coffee machine, although it solves the above technical problem of the drip coffee machine to some extent, that is, it can improve the extraction rate of the coffee powder, the purity of the coffee, and the brewing efficiency is also improved, but because of Only special coffee capsules can be used, so the cost of homemade coffee drinks is high. In addition, the structure of the capsule coffee machine is also complicated, and the manufacturing cost of the product is also high.

Summary of the invention

In order to make up for the deficiencies of the prior art, the present invention provides a completely structured coffee machine, which can not only improve the coffee extraction rate and the purity of the coffee drink, but also the coffee drink, on the basis of effectively shortening the coffee making time. The self-made cost is low, and in addition, the overall structure is relatively simple.

In order to achieve the object, the technical scheme adopted by the present invention is as follows:

A coffee machine includes a main body and a coffee cup, and the main water inlet is provided on the main body, and is characterized in that:

The coffee machine further includes a processing hopper that can pulverize or stir the coffee raw material, and filter the coffee liquid;

The processing bucket includes an inner bucket for containing coffee raw materials, and an outer bucket; the inner bucket is provided with a filter net, and the outer bucket is provided with a first water outlet;

When the processing bucket is mounted on the main body, the inner bucket fits into the outer bucket and constitutes a first cavity communicating with the first water outlet, the first water inlet Communicating with the inner cavity of the inner bucket, the first water outlet may communicate with the interior of the coffee cup, the area between the inner bucket and the main body, the opening of the inner bucket and the outer The area between the openings of the bucket is sealed.

Further, when the processing bucket is mounted on the main body, an area between the inner bucket and the main body, an opening between the inner bucket and an opening of the outer bucket are provided First sealing ring.

Further, the first sealing ring has a U-shaped cross section; the upper portion of the inner wall of the inner bucket is provided with a first annular boss, and the upper portion of the outer wall of the outer bucket is provided with a first annular step;

When the processing bucket is mounted on the main body, the first sealing ring is sleeved onto the first annular boss, and the main body presses an upper portion of the first sealing ring against the first annular convex An upper surface of the stage, the first annular step pressing the lower portion of the first sealing ring against the lower surface of the first annular boss.

Further, when the coffee machine is in operation, the relative pressure of the inner cavity of the inner bucket is 0.03 bar to 0.1 bar.

Further, the mesh of the filter is 250 to 350 mesh.

Further, the main body includes a first outer casing provided with a hollow portion, and a part of the side wall of the first outer casing is open;

The processing bucket may be mounted to the main body via an open position of a side wall of the first outer casing, and the coffee cup may be disposed in a hollow portion of the first outer casing via an open side wall of the first outer casing .

Further, the processing bucket further includes a bucket cover assembly;

When the processing bucket is mounted on the mainframe, the bucket cover assembly is fastened to the inner bucket, and the bucket cover assembly and the inner cavity of the inner bucket form a second cavity, the first inlet The water inlet is in communication with the water inlet of the second cavity, and the area between the opening of the inner bucket and the opening of the outer bucket, the cover area of the bucket cover assembly and the inner bucket are sealed .

Further, when the processing bucket is mounted on the main body, a bonding area of the bucket cover assembly and the inner bucket, an opening between the opening of the inner bucket and an opening of the outer bucket are both The first sealing ring is provided.

Further, the first sealing ring has a U-shaped cross section; the upper portion of the inner wall of the inner bucket is provided with a second annular boss, and the upper portion of the outer wall of the outer bucket is provided with a second annular step;

When the processing bucket is mounted on the mainframe, the first sealing ring is sleeved onto the second annular boss, and the bucket cover assembly presses an upper portion of the first sealing ring to the second An upper surface of the annular boss, the second annular step pressing the lower portion of the first sealing ring against the lower surface of the second annular boss.

Further, the bucket cover assembly includes a first bucket cover, and the water inlet of the second cavity is disposed on the first bucket cover.

Further, the structural form of the water inlet of the second cavity includes: an upper surface of the first bucket cover is provided with an annular first water tank, and is connected to the first water inlet; the first The lower surface of the bucket cover is provided with a second water tank which is annular and communicates with the second cavity; the side wall of the inner ring of the first water tank is provided with a plurality of first segmented bosses, adjacent to each other. The first A first through hole is defined between the segmented bosses, and the first water tank communicates with the second water tank through the first through hole.

Further, the coffee machine further includes a power mechanism disposed on the host;

The power mechanism is coupled to the processing bucket to drive the processing bucket to comminute coffee beans or to agitate the ground coffee when the processing bucket is mounted to the mainframe.

Further, when the processing bucket is mounted to the mainframe, the power mechanism is located above the processing bucket.

Further, the bucket cover assembly includes a second bucket cover, a sleeve, a bearing, a second sealing ring, a gasket, a connecting rod, a shaft and a cutter;

The water inlet of the second cavity is disposed on the second bucket cover; the sleeve is fixed at the center of the end surface of the second bucket cover and penetrates in the thickness direction of the second bucket cover, The second sealing ring and the bearing are fixedly sleeved in the sleeve from the outer end surface side of the second bucket cover, and the shaft is sleeved in the second sealing ring and the bearing. The gasket is sleeved on the shaft; the shaft is provided with one end of the shaft, and the other end is provided with the cutter, the gasket is located between the joint and the bearing;

The connector is coupled to the power mechanism when the processing bucket is mounted to the mainframe.

Further, the shaft is screwed or riveted and fixedly connected to the cutter; the connector is a coupling head coupled to the power mechanism.

Further, the power mechanism includes a motor and a motor coupling head electrically connected to the power source;

The mainframe further includes a motor mounting plate; the top of the first outer casing is open;

The motor mounting plate is provided with a central through hole extending through the thickness thereof, and the motor mounting plate is fastened and fixed to the top of the first outer casing; the motor shaft of the motor passes through the central through hole and the end thereof The motor coupling head is fixedly disposed, and the motor is fixed on the motor mounting plate;

The connecting head is coupled to the motor coupling head when the processing bucket is mounted to the main body via an open portion of the side wall of the first outer casing, and the coffee cup may pass through a side of the first outer casing The opening of the wall is disposed within the hollow of the first outer casing.

Further, the motor is a slow motor, and the tool is a stirring knife.

Further, the motor is a fast motor, and the cutter is a pulverizing knife;

The processing bucket further includes a protection bucket, and the protection bucket is provided with a plurality of second through holes;

The mainframe further includes a motor mounting bracket; the motor mounting bracket is fixedly mounted on the motor mounting plate, the motor is fixedly mounted on the motor mounting bracket, and a motor shaft of the fast motor passes through the center a through hole and a motor coupling head fixed at an end thereof;

When the processing bucket is mounted on the main body through the open side of the side wall of the first outer casing, the protection bucket is sleeved in the inner bucket, and the connector is coupled to the motor coupling head. The coffee cup can pass through a side wall of the first outer casing The opening is disposed in the hollow portion of the first outer casing.

Further, the inner wall of the protection bucket is provided with a plurality of first protrusions.

Further, a matching area of the motor mounting plate and the top of the first outer casing is provided with a third sealing ring.

Further, a fourth sealing ring is disposed between the motor shaft of the motor and the central through hole.

Further, the first water inlet is disposed on the motor mounting plate;

a side of the motor mounting plate opposite to the processing bucket is provided with a third water tank having an annular shape, and the third water tank is connected to the first water inlet;

a side of the second bucket cover opposite to the motor mounting plate is provided with an annular fourth water tank, the fourth water tank ring is disposed at a periphery of the connecting head, the fourth water tank and the fourth water tank The inlet of the second cavity is connected;

When the processing bucket is mounted to the main body, the third water tank and the fourth water tank are engaged with each other to form a third cavity.

Further, the structural form of the water inlet of the second cavity includes:

a side of the second bucket cover opposite to the inner bucket is provided with a fifth annular water tank that communicates with the second cavity; and a plurality of first side walls of the fourth water tank And a second through hole is disposed between each of the adjacent second segment bosses, and the fourth water tank communicates with the fifth water tank through the third through hole.

Further, a top surface of the outer ring of the third water tank is provided with a first sealing groove, and a top surface of the inner ring of the third water tank is provided with a second sealing groove;

a fifth sealing ring is disposed between the first sealing groove and the top surface of the outer ring of the fourth water tank when the processing bucket is mounted on the main body, and the second sealing groove is A sixth sealing ring is disposed between the top surfaces of the inner rings of the fourth water tank.

Further, the structural form of the motor mounting plate fastened and fixed to the top of the first outer casing comprises:

a plurality of second protrusions are disposed in a circumferential direction of the motor mounting plate, and a plurality of first grooves are disposed on an inner side of the top of the first outer casing, and each of the second protrusions and each of the first grooves are vertical Straight distribution and one-to-one snap fit.

Further, the host further includes a water tank, a first water pipe, a second water pipe, a U-shaped heating pipe, a U-shaped heating element, a heat-conducting connecting member, a reset thermostat for preventing dry-burning, a control circuit board, and a total power supply. Switch, power connector, display with multiple function buttons;

The water tank communicates with one end of the U-shaped heating pipe through the first water pipe, and the other end of the U-shaped heating pipe communicates with the first water inlet through the second water pipe; the U-shaped heating pipe Connecting to the U-shaped heat generating component through the heat conducting connecting member; the first water pipe is provided with a check valve;

The power connector is electrically connected to the main power switch; the reset thermostat is electrically connected to the U-shaped heat generating component, and the display screen, the main power switch, and the reset thermostat are all The control board is electrically connected.

Further, the host further includes a second outer casing and a fixing frame;

The fixing bracket fixes the U-shaped heating tube and the U-shaped heating element to the bottom of the first housing, and the reset thermostat is disposed at the bottom of the U-shaped heating element; the first housing Engaging with the second outer casing to form a fourth cavity, the water tank is disposed on the second outer casing and located in the fourth cavity, the first water pipe, the one-way valve, the The second water pipe, the fixing frame, the U-shaped heating pipe, the U-shaped heat generating member, the reset thermostat, the heat conducting connecting member, and the control circuit board are all located at the fourth capacity The power connector and the main power switch are all disposed on the second housing, and the display screen is disposed on the first housing.

Further, the second water pipe is connected to the first water inlet through a water pipe adapter, the water pipe adapter is V-shaped; and the water pipe joint and the first water inlet are provided with a first Seven seals.

Further, a temperature control sensor is disposed on the water pipe adapter; the temperature control sensor is electrically connected to the control circuit board and located in the fourth cavity.

Further, the top of the water tank is provided with a water tank cover that can be turned over and closed, and the inside of the water tank is provided with a scale line.

Further, the host further includes a plurality of Hall sensors, each of which is electrically connected to the control circuit board, and is disposed on the first housing;

The outer wall of the outer bucket is provided with a first handle, and the upper part of the first handle and the outer wall of the coffee cup are respectively provided with a magnet; when the processing bucket and the coffee cup are installed in position, the first handle The magnets, the magnets on the coffee cup, respectively correspond to the Hall sensors at different positions on the first housing.

Further, the first housing is further provided with a bi-color indicator light electrically connected to the control circuit board; when the coffee cup is installed in position, the two-color indicator light turns blue; when the coffee machine is in a warm state The two-color indicator light turns red.

Further, the host is provided with a plurality of illumination indicators for prompting the processing bucket to be installed in position and illuminating the interior of the processing bucket, and each of the illumination indicators is electrically connected to the control circuit board; Each of the illumination indicators is circumferentially uniform, and each of the illumination indicators is located above the processing bucket when the processing bucket is mounted to the mainframe.

Further, the structural form of the processing bucket mounted to the host includes:

The inner wall of the outer bucket is provided with a plurality of second grooves, and the side wall of the main body is provided with a plurality of third protrusions that can be snap-fitted with each of the second grooves; The flow direction of the two grooves is toward the bottom of the outer bucket, and the tail portion of each of the second grooves is provided with a limiting portion for restricting the movement of the outer bucket.

Further, the processing bucket is made of a food grade high temperature resistant transparent material.

Further, the first water outlet is located at the bottom of the outer bucket, and the bottom of the outer bucket is provided with a top valve assembly, the top valve assembly is in communication with the first water outlet; a ring is circumferentially disposed at an edge of the bottom, the height of the backing ring is not less than a height of the top valve assembly; the coffee cup may be located at the top when the processing bucket is mounted to the mainframe Below the valve assembly.

Further, the top valve assembly includes a spring, a plug, a slider, and a support block;

The spring is disposed laterally on the bottom of the outer bucket through the support block, and the plug is connected to the plug at one end thereof, and the spring is fixedly connected with the slider;

a push block is disposed on the cup cover of the coffee cup; when the coffee cup enters the bottom of the top open valve assembly, the push block pushes the slider to move to compress the spring, so that the plug leaves the a first water outlet; the spring rebounds when the coffee cup leaves below the top valve assembly, such that the plug blocks the first water outlet.

Further, a region of the slider that is in contact with the push block is stepped.

Further, the side wall of the cup of the coffee cup is provided with a second handle; the cup of the coffee cup and the cup lid of the coffee cup are flipped, and the position of the flip connection is set at the second An upper surface of the handle; the cup cover of the coffee cup is provided with a fourth through hole, the fourth through hole is located at a connection axis of the position of the flip connection and the center of the cup lid of the coffee cup, the coffee A fourth protrusion is disposed on the edge of the cup of the cup, and the fourth through hole and the fourth protrusion are correspondingly located and can cooperate with each other.

Compared with the prior art, the present invention has the following beneficial technical effects:

The coffee machine provided by the invention comprises a host machine, a coffee cup and a processing hopper independently of each other, wherein the processing hopper comprises an outer hopper provided as a first water outlet of the coffee liquid output passage, and the side wall is a filter net. Bucket, inner bucket is used to hold coffee ingredients (such as coffee powder or coffee beans). When the coffee machine is working (ie, the processing bucket is mounted on the main machine), the inner bucket fits into the outer bucket, and the area between the inner bucket and the main body, the opening between the inner bucket and the opening of the outer bucket are both It is sealed, that is, the outer bucket, the inner bucket and the main engine are constructed into a closed space, and the water vapor generated by the hot water can only overflow from the first water outlet on the outer bucket, and then it will accumulate in the closed space, so that the inner bucket The pressure of the inner cavity is higher than the external atmospheric pressure. Based on this, the coffee liquid dissolved in the inner bucket is forced out of the filter mesh to achieve the purpose of extraction and filtration, and the filtered coffee liquid flows to the coffee cup to make coffee. Drink; when no coffee liquid flows out, the inside of the processing bucket can communicate with the outside, so that the pressure in the processing bucket is reduced to be consistent with the external atmospheric pressure.

In other words, in the present invention, the inventors have creatively introduced the micro-pressure effect into the design of the coffee machine by newly designing the structure of the coffee machine. Specifically, the present invention utilizes the micro-pressure generated by the water vapor supplied by the hot water. The coffee liquid dissolved in the inner bucket is extracted and filtered. Therefore, the coffee machine of the present invention has the following advantages:

(1) After testing, the extraction rate of the coffee machine of the present invention can be as high as 20% or more, that is, it can effectively improve the coffee extraction rate, compared with the traditional drip coffee machine, the coffee powder is the same amount, coffee The brewing concentration is higher, the coffee powder is saved a lot, and the coffee production cost is lower;

(2) can effectively increase the density of the coffee filter mesh hole, help to reduce the residue in the coffee liquid, and improve the purity of the coffee drink;

(3) Compared with the traditional drip coffee machine (natural drip method), it can effectively shorten the coffee making time;

(4) The heat is not easily dissipated, and the high temperature steam continues to impact the coffee liquid surface, which is beneficial to increase the temperature of the coffee liquid, and is also beneficial for increasing the coffee extraction rate and helping to maintain the coffee taste;

(5) The overall structure of the product is extremely simple, which is conducive to reducing manufacturing costs.

DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

Figure 1 is an exploded view of the processing bucket of

Embodiment

1 or 2;

Figure 2 is a front sectional view showing the processing bucket according to

Embodiment

1 or 2;

Figure 3 is a front sectional view showing a coffee machine according to Embodiment 1;

4 is a partial cutaway structural view of a coffee machine according to Embodiment 1;

Figure 5 is a front sectional view showing a coffee machine according to Embodiment 2;

Figure 6 is an exploded view of the processing bucket of

Embodiment

3 or 4;

Figure 7 is a front sectional view showing the processing bucket according to

Embodiment

3 or 4;

Figure 8 is a front sectional view showing a coffee machine according to Embodiment 3;

9 is a partial cross-sectional structural view of a coffee machine according to Embodiment 3;

Figure 10 is a front sectional view showing a coffee machine according to Embodiment 4;

Figure 11 is an exploded view of the processing bucket of Embodiment 5 or 6;

Figure 12 is a front sectional view showing the processing bucket according to Embodiment 5 or 6;

Figure 13 is a front sectional view showing a coffee machine according to Embodiment 5;

Figure 14 is a partially cutaway structural view showing a coffee machine according to Embodiment 5;

Figure 15 is a front sectional view showing a coffee machine according to Embodiment 6;

Figure 16 is an exploded view of the processing bucket described in

Embodiment

7 or 8;

Figure 17 is a front sectional view showing the processing bucket according to

Embodiment

7 or 8;

Figure 18 is a front sectional view showing a coffee machine according to Embodiment 7;

Figure 19 is a partially cutaway structural view showing a coffee machine according to Embodiment 7;

Figure 20 is a front sectional view showing a coffee machine according to Embodiment 8;

Figure 21 is a schematic view showing the appearance of a coffee machine according to

Embodiment

1, 2, 3 or 4;

Figure 22 is a schematic diagram showing the electrical operation of a coffee machine according to the present invention.

Reference mark:

1, the host; 11, the first water inlet; 12, the first outer casing; 121, the hollow portion of the first outer casing; 122, two-color indicator light; 123, the first groove; 13, the water tank; 131, the water tank cover; First water pipe; 15, second water pipe; 151, water pipe adapter; 16, U-shaped heating tube; 161, thermal connection; 17, U-shaped heating element; 18, reset thermostat; 19, control circuit board; 191, first control circuit board; 192, second control circuit board; , power connector; 111, display; 112, check valve; 113, total power switch; 114, second housing; 1141, fixed frame; 115, fourth cavity; 116, temperature control sensor; 118; third protruding portion; 119, motor mounting plate; 1191, central through hole; 1192, fourth sealing ring; 1193, third water tank; 11931, first sealing groove; 11932, second sealing groove; 1194, a third cavity; 1195, a fifth sealing ring; 1196, a sixth sealing ring; 1197, a second protruding portion; 120, a motor mounting bracket;

2, coffee cup; 21, cup lid of coffee cup; 211, push block; 212, fourth through hole; 22, cup body of coffee cup; 221, second handle; 222, fourth protruding portion;

3, processing bucket; 31, inner bucket; 311, inner bucket handle; 312, filter net; 313, first annular boss; 314, second annular boss; 32, outer bucket; 321, first water outlet; 322, first handle; 323, second groove; 3231, limiting portion; 324, back ring; 325, first annular step; 326, second annular step; 33, first cavity; 34, top valve assembly 341, spring; 342, plug; 343, slider; 344, support block; 35, bucket cover assembly; 351, first bucket cover; 3511, first sink; 35111, first segment boss; a second water tank; 3513, a first through hole; 352, a second bucket cover; 3521, a fourth water tank; 35211, a second segment boss; 3522, a fifth water tank; 3523, a third through hole; 353, a bushing ;354, bearing; 355, second sealing ring; 356, gasket; 357, connector; 358, shaft; 359, cutter; 3591, mixing knife; 3592, grinding knife; 36, second cavity; Protective bucket; 371, second through hole; 372, first protruding portion;

4, the first sealing ring; 5, the seventh sealing ring; 6, the magnet; 7, the lighting indicator; 8, the power mechanism; 81, the motor; 811, slow motor; 812, fast motor; 82, motor coupling head; 9, the third sealing ring.

Detailed ways

Numerous specific details are set forth in the description below in order to provide a thorough understanding of the invention. However, the present invention can be implemented in many other ways than those described herein, and a person skilled in the art can make a similar promotion without departing from the spirit of the invention, and thus the invention is not limited by the specific embodiments disclosed below.

Example 1

This embodiment discloses a coffee machine, as shown in Figures 1-4, 21, 22, including a host 1, a coffee cup 2, a processing bucket 3, three independent of each other, the processing bucket 3 for filtering coffee liquid, the host A first water inlet 11 is provided on the first.

The processing bucket 3 includes an inner bucket 31 for containing coffee raw materials and an outer bucket 32. The inner bucket 31 is provided with a filter net 312. The inner bucket 31 is further provided with an inner bucket handle 311 for lifting, and the outer bucket 32 is provided. There is a first water outlet 321 .

In the present embodiment, as shown in FIG. 1, the filter net 312 serves as a side wall of the inner bucket 31, and is made of a metal material. However, it should be noted that, in the present invention, the filter net 312 is not limited to only As the side wall of the inner bucket 31, it can also serve as the bottom of the inner bucket 31, and can also be made of other materials, and the like, all of which are equivalent to the scope of the invention.

When the processing bucket 3 is mounted on the main body 1, the inner bucket 31 is fitted into the outer bucket 32 and constitutes a first cavity 33 communicating with the first water outlet 321 therebetween, and the first water inlet 11 and the inner bucket 31 are The inner chamber communicates, the first water outlet 321 can communicate with the interior of the coffee cup 2, and the area between the inner bucket 31 and the main body 1, the area between the opening of the inner bucket 31 and the opening of the outer bucket 32 are sealed.

Specifically, in the present embodiment, as shown in FIGS. 3 and 4, when the processing bucket 3 is mounted on the main body 1, the area between the inner bucket 31 and the main body 1, the opening of the inner bucket 31, and the outer bucket 32 are The first seal ring 4 is provided in the area between the openings to achieve a sealing effect.

More specifically, in the present embodiment, as shown in FIGS. 1 to 4, the first seal ring 4 has a U-shaped cross section; the upper portion of the outer wall of the inner bucket 31 is provided with a first annular boss 313, and the upper portion of the inner wall of the outer bucket 32 is provided. Providing a first annular step 325;

When the processing bucket 3 is mounted on the main assembly 1, the first sealing ring 4 is fitted onto the first annular boss 313, and the main body 1 presses the upper portion of the first sealing ring 4 against the upper surface of the first annular boss 313. An annular step 325 presses the lower portion of the first seal ring 4 against the lower surface of the first annular boss 313, which is not only simple in structure but also better in sealing effect.

In the present embodiment, when the coffee machine is in operation, the relative pressure of the inner cavity of the inner bucket 31 is selected to be 0.03 bar to 0.1 bar, and the mesh of the filter mesh is 250 to 350 mesh. The relative pressure of the inner cavity of the inner bucket 31 and the range of the mesh number of the filter mesh 311 are summarized by the inventors in the production practice for the defects of the conventional drip coffee machine, which can ensure the coffee liquid. It can be better extracted and filtered, effectively reducing the residue in the filtered coffee liquid, improving the purity of the coffee drink, and effectively avoiding the safety hazard caused by overpressure in the processing bucket. In the present embodiment, specifically, the relative pressure of the inner cavity of the inner bucket 31 is preferably 0.1 bar, and the mesh number of the filter net 312 is preferably 300 mesh.

In this embodiment, as shown in FIGS. 3 and 4, the main body 1 includes a first outer casing 12 provided with a hollow portion 121, and a part of the side wall of the first outer casing 12 is open;

When the processing bucket 3 is mounted on the main body 1 through the open side of the side wall of the first outer casing 12, the coffee cup 2 can be disposed in the hollow portion 121 of the first outer casing 12 through the open side wall of the first outer casing 12, the whole machine Compact structure helps to reduce product volume.

In this embodiment, as shown in FIGS. 3, 4, 21, 22, the main body 1 further includes a water tank 13, a first water pipe 14, a second water pipe 15, a U-shaped heating pipe 16, a U-shaped heat generating member 17, and a heat conducting connection. A member 161, a reset thermostat 18 for preventing dry burning, a control circuit board 19, a main power switch 113, a power connector 110, and a display screen 111 with a plurality of function buttons.

The control circuit board 19 includes a first control circuit board 191 and a second control circuit board 192 electrically connected to each other, respectively disposed at the top and bottom of the first housing 12; the main power switch 113 is a strong electric switch, and the interior of the coffee machine The control circuit is a weak current control circuit to ensure safe use; the display 111 can select a digital tube display, a color digital display or a liquid crystal display, etc., the function buttons can be set according to actual needs, and the specific switch can be selected, and the micro switch can be selected. Or the inductive switch or the like is set; the power of the U-shaped heating element 17 is adjustable, and the constant power function can be introduced according to actual needs to heat the water; the first water pipe 14 and the second water pipe 15 are all silicone pipes, but the invention Not limited to this.

The water tank 13 (in the present embodiment, specifically the bottom of the water tank 13) communicates with one end of the U-shaped heating pipe 16 through the first water pipe 14, and the other end of the U-shaped heating pipe 16 passes through the second water pipe 15 and the first water inlet 11 The U-shaped heating pipe 16 is connected to the U-shaped heat generating component 17 through the heat-conducting connecting member 161; the one-way valve 112 is disposed at the first water pipe 14. Based on the design of the structure, the water in the water tank 13 can enter the U-shaped heating pipe 16 by the self-gravity opening the one-way valve 112, and the water vapor pressure generated by the hot water is greater than the sealing pressure inside the inner bucket 31, so that the hot water Finally, it flows into the processing bucket 3. Moreover, since the check valve 112 is repeatedly opened and closed during the operation of the coffee machine, the hot water enters the processing bucket 3 in a drip-column manner (similar to the "breathing" state), and is also advantageous for extracting the coffee liquid. filter.

The main power switch 113 is electrically connected to the power connector 110; the reset thermostat 18 is electrically connected to the U-shaped heat generating member 17, and the display screen 111, the main power switch 113, and the reset thermostat 18 are electrically connected to the control circuit board 19.

In this embodiment, when the water temperature in the U-shaped heating tube 16 reaches 120 ° C, the reset thermostat 18 directly turns off the main power switch 113 through the control circuit board 19, so that the U-shaped heating tube 16 stops heating, avoiding drying. burn.

In this embodiment, as shown in Figures 1-4, 21, 22, the host 1 further includes a second housing 114, a mounting bracket 1141;

The fixing frame 1141 fixes the U-shaped heating tube 16 and the U-shaped heating element 17 to the bottom of the first housing 12, and the reset thermostat 18 is disposed at the bottom of the U-shaped heating element 17; the first housing 12 and the second housing 114 are interlocked with each other. Forming a fourth cavity 115, the water tank 13 is disposed on the second outer casing 114 and located in the fourth cavity 115, the first water pipe 14, the check valve 112, the second water pipe 15, the fixed frame 1141, and the U-shaped heating pipe The U-shaped heat generating component 17, the reset thermostat 18, the heat conducting connecting component 161, and the control circuit board 19 are all located in the fourth cavity 115; the power connector 110 and the main power switch 113 are all disposed on the second casing 114. The display screen 111 is disposed on the first outer casing 12.

Wherein, the second water pipe 15 communicates with the first water inlet 11 through a water pipe joint 151, and the water pipe adapter 151 has a V shape, which effectively avoids the use of the silicone tube by the traditional coffee machine (the bend is supported by the spring) The water is easily blocked and the like, and the water circulation is effectively ensured; the seventh sealing ring 5 is provided at the connection between the water pipe adapter 151 and the first water inlet 11, which can effectively prevent the water pipe adapter 151 from leaking and overflowing to the first The four chambers 115 are inside to effectively protect other components.

The temperature control sensor 116 is electrically connected to the control circuit board 19 and located in the fourth cavity 115. Based on the structural design, under the control of the control circuit board 19, the temperature control sensor 116 can be interlocked with the U-shaped heat generating component 17, that is, the temperature control sensor 116 can perform power adjustment on the U-shaped heat generating component 17 according to the water temperature. Specifically, in the present embodiment, when the water temperature at the water pipe adapter 151 reaches 96 ° C, the operating power of the U-shaped heat generating member 17 is adjusted to be correspondingly lowered.

In the present embodiment, as shown in FIGS. 1 to 4 and 21, the top of the water tank 13 is provided with a water tank cover 131 which can be opened and closed, and the inside of the water tank 13 is provided with a scale line, so that the user can accurately control the water filling amount as needed.

In this embodiment, as shown in FIGS. 3, 4, 21, 22, the first housing 12 is further provided with a bi-color indicator light 122, which is The control circuit board 19 is electrically connected; when the coffee cup 2 is in place, the two-color indicator light 122 turns blue; when the coffee machine is in the warm state, the two-color indicator light 122 turns red.

In this embodiment, as shown in FIGS. 1 to 4, 21, and 22, the host 1 further includes a plurality of Hall sensors 117, which are electrically connected to the control circuit board 19, and are disposed on the first housing 12. (The Hall sensor 117 seals the envelope to prevent rust);

The outer wall of the outer bucket 32 is provided with a first handle 322. The upper part of the first handle 322 and the outer wall of the coffee cup 2 are respectively provided with a magnet 6 (each of which needs to be sealed to prevent rust); when the processing bucket 3 and the coffee cup 2 are installed in place When the magnet 6 on the first handle 322 and the magnet 6 on the coffee cup 2 respectively correspond to the Hall sensor 117 at different positions on the first casing 12, Hall induction is generated to form a Hall switch, in which the coffee is The working process of the machine can be used to disconnect or connect the working circuit, that is, it can be used as a safety switch in the coffee machine. Moreover, the two-color indicator light 122 and the Hall sensor 117 are both electrically connected to the control circuit board 19, so that the formed Hall switch can control whether the two-color indicator light 122 is turned on or off.

Specifically, in this embodiment, as shown in FIGS. 1 to 4, the structural form of the processing bucket 3 mounted to the host 1 includes:

The inner wall of the outer bucket 32 is provided with a plurality of second recesses 323. The side wall of the main body 1 is provided with a plurality of third protrusions 118 that can be snap-fitted with the second recesses 323. The shape flow direction of the 323 is toward the bottom of the outer bucket 32, so that the processing bucket 3 (specifically, the outer bucket 32) does not need to be stuck to the main body 1 (specifically, the third protruding portion 118) in a state of "bowl level", each The tail portion of the second recess 323 is provided with a limiting portion 3231 for restricting the movement of the outer bucket 32, thereby effectively preventing the processing bucket 3 and the main body 1 from being detached during the operation of the coffee machine, thereby effectively ensuring the use of the product. Safe and reliable.

The processing bucket 3 is made of a food grade high temperature resistant transparent material. Specifically, in the embodiment, the food grade high temperature resistant transparent material is a PP material, but the invention is not limited thereto.

In the present embodiment, the heat conduction connecting member 161 is made of an aluminum material, and the heat conduction effect is excellent, but the present invention is not limited thereto.

In the present embodiment, as shown in FIGS. 1 to 4, the first water outlet 321 is located at the bottom of the outer bucket 32, and the bottom of the outer bucket 32 is provided with an open valve assembly 34, the top valve assembly 34 and the first water outlet 321 Connecting; a ring 324 is circumferentially disposed at an edge of the bottom of the outer bucket 32. The height of the backing ring 324 is not less than the height of the top opening valve assembly 34; when the processing bucket 3 is mounted on the main body 1, the coffee cup 2 can be located at the top. Below the valve assembly 34.

Wherein, the top opening valve assembly 34 includes a spring 341, a plug head 342, a slider 343, a support block 344;

The spring 341 is laterally disposed on the bottom of the outer bucket 32 through the support block 344, and one end of the spring 341 is connected with a plug 342, and the spring 341 is fixedly connected with the slider 343;

The cup cover 21 of the coffee cup 2 is provided with a push block 211; when the coffee cup 2 enters below the top open valve assembly 34, the push block 211 pushes the slider 343 to move to compress the spring 341, so that the plug 342 leaves the first water outlet When the coffee cup 2 leaves the lower opening valve assembly 34, the spring 341 rebounds, so that the plug 342 blocks the first water outlet 321 .

Based on the above structural design, the top opening valve assembly 34 of the present embodiment effectively improves the anti-drip effect of the processing bucket 3; compared with the conventional anti-drip structure, when the processing bucket 3 is placed on the table top, the present embodiment Top open valve assembly 34 does not come into contact with the table top, so that the processing bucket 3 can be placed directly on the table without falling over; in addition, the top opening valve assembly 34 of the present embodiment is basically the same as the conventional top opening valve structure. It does not flow through the spring 341, which is more conducive to ensuring the cleanliness of the coffee liquid and ensuring hygienic drinking.

Here, as shown in FIGS. 1 to 4, the area of the slider 343 which is in contact with the push block 211 is stepped to press the coffee cup 2 more firmly.

In this embodiment, as shown in FIGS. 1 to 4, the side wall of the cup 22 of the coffee cup 2 is provided with a second handle 221; the cup 22 of the coffee cup 2 and the cup cover 21 of the coffee cup 2 are flipped together. The position of the flip connection is set on the upper surface of the second handle 221; the cup cover 21 of the coffee cup is provided with a fourth through hole 212, and the fourth through hole 212 is located at the position of the flip connection and the connection axis of the center of the cup lid 21 of the coffee cup The fourth protrusion 222 is disposed on the edge of the cup 22 of the coffee cup, and the fourth through hole 212 and the fourth protrusion 222 are correspondingly positioned and can cooperate with each other. Through the mutual cooperation of the fourth through hole 212 and the fourth protruding portion 222, that is, the fourth protruding portion 222 passes through the fourth through hole 212, the top opening valve assembly 34 (specifically, the slider 343) is effectively prevented from being applied to the coffee cup. The lateral force on the lid 21 of the cup 2 (specifically the push block 211) is transmitted directly to the flip joint of the cup 22 of the coffee cup 2 and the lid 21 of the coffee cup 2, i.e. it can be applied to the lid 21 of the coffee cup 2 The lateral movement plays a limiting role, thereby protecting the flip joint of the cup 22 of the coffee cup 2 and the lid 21 of the coffee cup 2, which is advantageous for improving the reliability of use of the coffee cup 2.

In order to better understand the present invention, the working process of the coffee machine described in this embodiment is described in the following, as follows:

(1) opening the water tank cover 131, pouring water into the water tank 13, the water in the water tank 13 pushes the check valve 112 to open and enters the U-shaped heating pipe 16 through the first water pipe 14;

(2) The inner bucket 31 is fitted into the outer bucket 32 to form a complete processing bucket 3, and then the coffee raw material (in this embodiment, specifically coffee powder) is placed in the inner bucket 31;

(3) The coffee machine is connected to the power source through the power connector 110, the main power switch 113 is turned on, the processing bucket 3 is mounted on the main body 1, and the coffee cup 2 is placed under the processing bucket 3 so that the outer bucket 32 is A water outlet 321 communicates with the interior of the coffee cup 2, when the coffee cup 2 is installed in place, the two-color indicator light 122 on the first outer casing 12 turns blue; if the coffee cup 2 is moved during the operation of the coffee machine (or When the door is removed and the installation is not in place, the Hall sensor 117 on the first casing 12 and the magnet 6 corresponding thereto are separated from each other, and the working circuit of the entire coffee machine is disconnected, and the two-color indication on the first casing 12 is Lamp 122 is extinguished;

(4) Starting the coffee machine work button, the U-shaped heating element 17 starts to heat the water in the U-shaped heating tube 16. When the water temperature rises to the desired temperature, the pressure generated by the water vapor drives the hot water to continuously leak. The formula enters the processing bucket 3, during which the reset thermostat 18 monitors the change of the water temperature at all times to prevent dry burning, and the temperature control sensor 116 also constantly monitors the change of the water temperature for adjustment;

(5) After the hot water enters the inner bucket 31, the coffee powder therein is dissolved to form the coffee liquid, and at the same time, as the water vapor continuously accumulates in the inner bucket 31, the pressure in the inner bucket 31 is continuously increased, and the coffee liquid is forced. The filter mesh hole is pressed out and flows into the coffee cup 2, thereby achieving the effect of extracting and filtering the coffee liquid; when the coffee machine is in the heat preservation state, the two-color indicator light 122 corresponding to the coffee cup 2 on the first outer casing 12 becomes red;

(6) When the extraction and filtration are completed, the inside of the processing bucket 3 is further connected to the outside, so that the pressure in the processing bucket 3 is reduced to the same external atmospheric pressure, and the coffee cup 2 can be removed from the lower side of the processing bucket 3 at this time, and The processing bucket 3 is detached from the main body 1 to finally complete the production of the coffee drink.

The coffee extraction test was carried out using the coffee machine of the present embodiment, and the test results were tested. The average coffee extraction rate of the coffee machine was about 21.5%. In other words, the coffee machine of the embodiment can effectively improve the coffee extraction rate, which is higher than the traditional drip coffee machine, the coffee brewing concentration is higher under the same amount of coffee powder, and the coffee powder is saved a lot. The cost is lower.

Example 2

This embodiment discloses another coffee machine, which differs in structure from the coffee machine described in Embodiment 1 in that:

(1) In the present embodiment, as shown in FIG. 5, the main unit 1 is provided with a plurality of illumination indicators 7 for prompting the processing bucket 3 to be installed in place, and illuminating the inside of the processing bucket 3, each of the illumination indicators 7 Electrically connected to the control circuit board 19; wherein each of the illumination indicators 7 is evenly distributed in the circumferential direction, when the processing bucket 3 is mounted on the mainframe 1, each illumination indicator 7 is located above the processing bucket 3 to illuminate the entire transparent processing The inside of the bucket 3 is convenient for the user to observe the working condition inside the processing bucket 3 at any time, and is more humanized.

(2) In order to facilitate a more spacious arrangement space for the line for supplying power to the illumination indicator 7, in the present embodiment, the area of the illumination indicator 7 of the main unit 1 is recessed, see FIG.

Compared with the coffee machine of the embodiment 1, the coffee machine of the embodiment differs in the working process in that, for the coffee machine of the embodiment, when the processing bucket 3 is installed in position, the lighting indication The light 7 is illuminated.

Other contents of the coffee machine described in this embodiment are completely the same as those in Embodiment 1, and are not described herein again.

Example 3

In this embodiment, as shown in Figures 6-9, the processing bucket 3 further includes a bucket cover assembly 35;

When the processing bucket 3 is mounted on the main body 1, the lid assembly 35 is fastened to the inner bucket 31, and the inner lid of the bucket assembly 35 and the inner bucket 31 constitutes a second cavity 36, the first water inlet 11 and the second cavity. The water inlet of 36 is connected, the area between the opening of the inner bucket 31 and the opening of the outer bucket 32, and the bonding area of the lid assembly 35 and the inner bucket 31 are sealed.

Specifically, in the present embodiment, as shown in FIGS. 6 to 9, when the processing bucket 3 is mounted on the main body 1, the flap assembly 35 A first seal ring 4 is provided in a region where the inner region of the inner bucket 31, the opening of the inner bucket 31, and the opening of the outer bucket 32 are provided.

More specifically, in the present embodiment, as shown in FIGS. 6-9, the first sealing ring 4 has a U-shaped cross section; the upper portion of the outer wall of the inner bucket 31 is provided with a second annular boss 314, and the upper portion of the inner wall of the outer bucket 32 Providing a second annular step 326;

When the processing bucket 3 is mounted on the main assembly 1, the first sealing ring 4 is fitted onto the second annular boss 314, and the top cover assembly 35 (specifically, the downward pressure of the main body 1) presses the upper portion of the first sealing ring 4 against The upper surface of the second annular boss 314 presses the lower portion of the first seal ring 4 against the lower surface of the second annular boss 314, thereby achieving a good sealing effect.

More specifically, in the present embodiment, as shown in FIGS. 6-9, the bucket cover assembly 35 includes a first bucket cover 351, and the water inlet of the second cavity 36 is disposed on the first bucket cover 351.

In this embodiment, as shown in FIGS. 6-9, the structural form of the water inlet of the second cavity 36 includes:

The first surface of the first bucket cover 351 is provided with a first water tank 3511 which is annular and communicates with the first water inlet 11; the lower surface of the first bucket cover 351 is provided with a second water tank 3512 which is annular, and The second cavity 36 is connected to the inner side wall of the first water tank 3511. The first inner side wall 3511 is provided with a first through hole 35311. A water tank 3511 communicates with the second water tank 3512 through the first through hole 3513. Based on the design of the structure, the coffee liquid in the second cavity 36 can be effectively prevented from splashing out from the water inlet of the second cavity 36, causing pollution and waste.

Wherein, the outer ring region of the first outer casing 12 corresponding to the first water tank 3511 and the inner ring region of the first outer casing 12 corresponding to the first water tank 3511 are respectively provided with a seal ring groove; when the processing bucket 3 is mounted to When the main body 1 is disposed, a seal ring for sealing is provided between each seal ring groove and the outer ring top surface of the first water tank 3511 and the inner ring top surface of the first water tank 3511 to avoid inflow from the first water inlet 11 The water penetrates into the area between the components on the first outer casing 12, thereby effectively improving the safety of use of the device and the cleanliness of the device.

The other contents (including the working process, the structural form, the coffee extraction rate, and the like) of the coffee machine described in this embodiment are substantially the same as those in Embodiment 1, and are not described herein again.

Example 4

This embodiment discloses another coffee machine, which differs in structure from the coffee machine described in Embodiment 3 in that:

(1) In the present embodiment, as shown in FIG. 10, the main unit 1 is provided with a plurality of illumination indicators 7 for prompting the processing bucket 3 to be installed in place and illuminating the interior of the processing bucket 3, each of the illumination indicators 7 Electrically connected to the control circuit board 19; wherein each of the illumination indicators 7 is evenly distributed in the circumferential direction, when the processing bucket 3 is mounted on the mainframe 1, each illumination indicator 7 is located above the processing bucket 3 to illuminate the entire transparent processing The inside of the bucket 3.

Compared with the coffee machine described in Embodiment 3, the coffee machine described in this embodiment differs in the working process in that: For the coffee machine of the embodiment, when the processing bucket 3 is installed in place, the illumination indicator 7 is illuminated.

Other contents of the coffee machine described in this embodiment are completely the same as those in Embodiment 3, and details are not described herein again.

Example 5

This embodiment discloses another coffee machine in which the processing hopper 3 is used to stir coffee raw materials (particularly coffee powder) and filter coffee liquid. Specifically, the difference between the coffee machine of the embodiment and the coffee machine of the third embodiment is:

In this embodiment, as shown in FIGS. 11-14, the coffee machine further includes a power mechanism 8 disposed on the host 1;

When the processing bucket 3 is mounted to the main body 1, the power mechanism 8 is coupled to the processing bucket 3 to drive the processing bucket 3 to agitate the coffee powder.

Wherein, when the processing bucket 3 is mounted on the main body 1, the power mechanism 8 is located above the processing bucket 3, and the structural layout is extremely reasonable.

In this embodiment, as shown in FIGS. 11-14, the bucket cover assembly 35 includes a second bucket cover 352, a sleeve 353, a bearing 354, a second sealing ring 355, a spacer 356, a connector 357, and a shaft 358. And cutter 359;

The water inlet of the second cavity 36 is disposed on the second bucket cover 352. The sleeve 353 is fixed to the center of the end surface of the second bucket cover 352 and penetrates in the thickness direction of the second bucket cover 352. The second sealing ring 355 and the bearing 354 is fixedly sleeved in the sleeve 353 from the outer end surface side of the second bucket cover 352. The shaft 358 is sleeved in the second sealing ring 355 and the bearing 354, and the spacer 356 is sleeved on the shaft 358; The rod 358 has a connecting head 357 at one end and a cutter 359 at the other end, and the spacer 356 is located between the connecting head 357 and the bearing 354;

When the processing bucket 3 is mounted to the main body 1, the connector 357 is connected to the power mechanism 8.

The shaft 358 is screwed or riveted and fixedly connected to the cutter 359. The coupling head 357 is a coupling head, which is coupled with the power mechanism 8 to improve the reliability of the connection.

More specifically, in this embodiment, as shown in FIGS. 11-14, the power mechanism 8 includes a motor 81 electrically coupled to a power source, a motor coupling head 82;

The main body 1 further includes a motor mounting plate 119; the top of the first outer casing 12 is open;

The motor mounting plate 119 is provided with a central through hole 1191 extending through the thickness thereof, and the motor mounting plate 119 is fastened and fixed to the top of the first outer casing 12; the motor shaft of the motor 81 passes through the central through hole 1191 and the motor is fixed at the end thereof. a coupling head 82, the motor 81 is fixed on the motor mounting plate 119;

When the processing bucket 3 is mounted to the main body 1 through the open portion of the side wall of the first outer casing 12, the connecting head 357 is coupled to the motor coupling head 82, and the coffee cup 2 can be disposed in the first through the opening of the side wall of the first outer casing 12. Inside the hollow portion 121 of the outer casing 12.

As shown in FIG. 22, the motor 81 is electrically connected to the power source through the control circuit board 19, so that the motor 81 can be intelligently controlled according to the inside of the processing bucket 3.

In the present embodiment, as shown in Figs. 11 to 14, the motor 81 is a slow motor 811, and the cutter 359 is a stirring blade 3591 for stirring.

In the present embodiment, as shown in FIGS. 11 to 14, a third sealing ring 9 is provided in the bonding area of the motor mounting plate 119 and the top of the first outer casing 12. Wherein, the setting of the third sealing ring 9 not only serves to seal and isolate the area where the motor 81 is located from the outside area, but also plays a certain damping effect, so as to effectively reduce the vibration generated by the motor 81 and transmit to the first outer casing. 12, is conducive to improve the reliability of the use of the product.

In this embodiment, as shown in FIGS. 11-14, a fourth sealing ring 1192 is disposed between the motor shaft of the motor 81 and the center through hole 1191, which is beneficial for reducing water vapor to enter the motor 81 through the gap between the two. As a result, the performance of the motor 81 is impaired.

In this embodiment, as shown in FIGS. 11-14, the first water inlet 11 is provided on the motor mounting plate 119;

a third water tank 1193 having an annular shape is disposed on a surface of the motor mounting plate 119 opposite to the processing bucket 3, and the third water tank 1193 is in communication with the first water inlet 11;

The fourth cover 352 has a fourth water tank 3521 which is annular in shape, and a fourth water tank 3521 is disposed around the outer periphery of the connecting head 357, and the fourth water tank 3521 and the second chamber 36 are inserted. The nozzle is connected;

When the processing bucket 3 is mounted to the main body 1, the third water tank 1193 and the fourth water tank 3521 are engaged with each other to form a third cavity 1194.

In this embodiment, as shown in FIGS. 11-14, the structural form of the water inlet of the second cavity 36 includes:

A side of the second bucket cover 352 opposite to the inner bucket 31 is provided with a fifth annular water tank 3522 which is in communication with the second volume 36; and a second plurality of second side walls of the inner wall of the fourth water tank 3521. A third through hole 3523 is defined between each of the adjacent second segment bosses 35211, and the fourth water tank 3521 communicates with the fifth water tank 3522 through the third through hole 3523. Based on the design of the structure, the coffee liquid in the second cavity 36 can be effectively prevented from splashing out from the water inlet of the second cavity 36, thereby avoiding waste of coffee liquid or contaminating other areas of the device.

Wherein, the top surface of the outer ring of the third water tank 1193 is provided with a first sealing groove 11931, and the top surface of the inner ring of the third water tank 1193 is provided with a second sealing groove 11932;

When the processing bucket 3 is mounted on the main body 1, a fifth sealing ring 1195 is disposed between the first sealing groove 11931 and the top surface of the outer ring of the fourth water tank 3521, and the second sealing groove 11932 and the fourth water tank 3521 are inside. A sixth sealing ring 1196 is provided between the top surfaces of the ring to provide a sealing effect. Moreover, based on this structural design, the fifth sealing ring 1195 and the sixth sealing ring 1196 can be attached to the motor mounting plate 119 to facilitate the installation of the processing bucket 3.

In this embodiment, as shown in FIGS. 11-14, the structural form of the motor mounting plate 119 fastened to the top of the first outer casing 12 includes:

A plurality of second protrusions 1197 are disposed in the circumferential direction of the motor mounting plate 119, and a plurality of first grooves 123 are disposed on the inner side of the top of the first outer casing 12, and each of the second protrusions 1197 and each of the first grooves 123 are vertically distributed. And one-to-one corresponding snap fit, in order to achieve a good limit fixed effect.

Compared with the coffee machine described in Embodiment 3, the coffee machine described in this embodiment differs in the working process in that: With the coffee machine of the present embodiment, while the hot water enters the inner bucket 31, the slow motor 811 starts to operate, and the stirring blade 3591 is driven to rotate to stir the coffee powder in the inner bucket 31.

The coffee machine of the present embodiment introduces the stirring method, so that the coffee powder and the water can be more fully contacted, mixed, and fermented, so that the coffee extraction rate is more significantly improved. The coffee extraction test was carried out using the coffee machine of the present embodiment, and the test results were tested. It can be seen that the average coffee extraction rate of the coffee machine is about 24.1%. In other words, the coffee machine of the present embodiment can save 20% to 30% of coffee powder under the premise of drinking the same concentration of coffee compared with the conventional drip coffee machine.

Example 6

This embodiment discloses another coffee machine, which differs in structure from the coffee machine described in Embodiment 5 in that:

In this embodiment, as shown in FIG. 15, the main body 1 is provided with a plurality of illumination indicators 7 for prompting the processing bucket 3 to be installed in place and illuminating the inside of the processing bucket 3, and each illumination indicator 7 is connected to the control circuit. The boards 19 are electrically connected; wherein the illumination indicators 7 are uniformly distributed circumferentially, and when the processing bucket 3 is mounted on the main unit 1, each illumination indicator 7 is located above the processing bucket 3 to illuminate the entire transparent processing bucket 3 internal.

Compared with the coffee machine of the embodiment 5, the coffee machine of the embodiment has the only difference in the working process: for the coffee machine of the embodiment, when the processing bucket 3 is installed in position, the lighting indication The light 7 is illuminated.

Other contents of the coffee machine described in this embodiment are completely the same as those in Embodiment 5, and details are not described herein again.

Example 7

This embodiment discloses another coffee machine in which the processing hopper 3 is used for pulverizing coffee raw materials (particularly coffee beans), stirring coffee raw materials (specifically coffee powder), and filtering coffee liquid. Specifically, the difference between the coffee machine of the embodiment and the coffee machine of the embodiment 5 is:

In the present embodiment, as shown in FIGS. 16-19, the motor 81 is a fast motor 812, and the cutter 359 is a pulverizing knife 3592 for pulverizing coffee beans; when the processing hopper 3 is mounted to the main body 1, the power mechanism 8 is The processing bucket 3 is connected to drive the processing bucket 3 to pulverize the coffee beans and stir the coffee powder.

In the present embodiment, as shown in FIGS. 16-19, the processing bucket 3 further includes a protective bucket 37 for protecting the inner bucket 31 from the crushing knife 3592, and the protective bucket 37 is provided with a plurality of coffee liquids flowing out. The second through hole 371. It should be noted that, in this embodiment, although the second through hole 371 is disposed on the sidewall of the protection bucket 37 (as shown in FIG. 16), in the present invention, the second through hole 371 may also be disposed in the protection. The bottom of the bucket 37, and the like, are all within the scope of the invention.

In this embodiment, as shown in FIGS. 16-19, the mainframe 1 further includes a motor mounting bracket 120; the motor mounting bracket 120 The motor 81 is fixedly mounted on the motor mounting bracket 119, and the motor 81 is fixedly mounted on the motor mounting bracket 120, which is beneficial for reducing the vibration force generated by the fast motor 812 to be transmitted to the first housing 12. The motor shaft of the fast motor 812 passes through the center through hole 1191. And the end is fixed with a motor coupling head 82;

When the processing bucket 3 is mounted on the main body 1 through the open portion of the side wall of the first outer casing 12, the protective hopper 37 is fitted into the inner hopper 31, and the connecting head 357 is coupled with the motor coupling head 82, and the coffee cup 2 can pass through the first The opening of the side wall of the outer casing 12 is disposed in the hollow portion 121 of the first outer casing 12.

Here, as shown in FIGS. 16 to 19, the inner wall of the protective hopper 37 is provided with a plurality of first protruding portions 372 to accelerate the pulverization efficiency of the coffee beans.

Compared with the coffee machine described in Embodiment 5, the difference in the working process of the coffee machine described in this embodiment lies in:

(1) After the inner bucket 31 is fitted into the outer bucket 32, the coffee beans are placed in the inner bucket 31;

(2) While the hot water enters the inner bucket 31, the fast motor 812 operates, which drives the pulverizing knife 3592 to rotate to pulverize the coffee beans in the inner bucket 31, and also performs a sufficient stirring effect.

The coffee machine of the embodiment introduces the grinding function, and it is not necessary to use the coffee powder, but the coffee drink can be directly produced by using the lower cost coffee beans, so that the user can drink the freshly ground coffee, thereby not only reducing the coffee. The cost of making the drink, but also makes the coffee extraction rate more significant. The coffee extraction test was carried out using the coffee machine of the present embodiment, and the test results were tested. It can be seen that the average coffee extraction rate of the coffee machine is about 22.2%.

Example 8

This embodiment discloses another coffee machine, which is structurally different from the coffee machine described in Embodiment 7 in that:

In this embodiment, as shown in FIG. 20, the main body 1 is provided with a plurality of illumination indicators 7 for prompting the processing bucket 3 to be installed in place, and illuminating the inside of the processing bucket 3, and each illumination indicator 7 is connected to the control circuit. The boards 19 are electrically connected; wherein the illumination indicators 7 are uniformly distributed circumferentially, and when the processing bucket 3 is mounted on the main unit 1, each illumination indicator 7 is located above the processing bucket 3 to illuminate the entire transparent processing bucket 3 internal.

Compared with the coffee machine of the embodiment 7, the coffee machine of the embodiment has the only difference in the working process: for the coffee machine of the embodiment, when the processing bucket 3 is installed in place, the lighting indication The light 7 is illuminated.

The other contents of the coffee machine described in this embodiment are completely the same as those in Embodiment 7, and are not described herein again.

Finally, it should be noted that other contents of a coffee machine according to the present invention can be found in the prior art.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Therefore, any of the above embodiments can be made according to the technical essence of the present invention without departing from the technical solution of the present invention. Simple modifications, equivalent changes and modifications are still within the scope of the technical solutions of the present invention.

Claims

A coffee machine includes a main body and a coffee cup, and the main water inlet is provided on the main body, and is characterized in that:

The coffee machine further includes a processing hopper that can pulverize or stir the coffee raw material, and filter the coffee liquid;

The processing bucket includes an inner bucket for containing coffee raw materials, and an outer bucket; the inner bucket is provided with a filter net, and the outer bucket is provided with a first water outlet;

When the processing bucket is mounted on the main body, the inner bucket fits into the outer bucket and constitutes a first cavity communicating with the first water outlet, the first water inlet Communicating with the inner cavity of the inner bucket, the first water outlet may communicate with the interior of the coffee cup, the area between the inner bucket and the main body, the opening of the inner bucket and the outer The area between the openings of the bucket is sealed.
The coffee machine according to claim 1, wherein when the processing bucket is mounted on the main body, an area between the inner bucket and the main body, an opening of the inner bucket, and the outer A region between the openings of the bucket is provided with a first sealing ring.
A coffee machine according to claim 2, wherein:

The first sealing ring has a U-shaped cross section; the upper portion of the inner wall of the inner bucket is provided with a first annular boss, and the upper portion of the outer wall of the outer bucket is provided with a first annular step;

When the processing bucket is mounted on the main body, the first sealing ring is sleeved onto the first annular boss, and the main body presses an upper portion of the first sealing ring against the first annular convex An upper surface of the stage, the first annular step pressing the lower portion of the first sealing ring against the lower surface of the first annular boss.
The coffee machine according to claim 1, wherein the relative pressure of the inner cavity of the inner bucket is 0.03 bar to 0.1 bar when the coffee machine is in operation.
The coffee maker according to claim 1, wherein the filter mesh has a mesh number of 250 to 350 mesh.
A coffee machine according to claim 1 wherein:

The main body includes a first outer casing provided with a hollow portion, and a part of the side wall of the first outer casing is open;

The processing bucket may be mounted to the main body via an open position of a side wall of the first outer casing, and the coffee cup may be disposed in a hollow portion of the first outer casing via an open side wall of the first outer casing .
A coffee machine according to claim 6 wherein:

The processing bucket further includes a bucket cover assembly;

When the processing bucket is mounted on the mainframe, the bucket cover assembly is fastened to the inner bucket, and the bucket cover assembly and the inner cavity of the inner bucket form a second cavity, the first inlet The water inlet is in communication with the water inlet of the second cavity, and the area between the opening of the inner bucket and the opening of the outer bucket, the cover area of the bucket cover assembly and the inner bucket are sealed .
The coffee machine according to claim 7, wherein when the processing bucket is mounted on the main body, a fitting area of the bucket cover assembly and the inner bucket, and an opening of the inner bucket are The first seal ring is provided in a region between the openings of the outer bucket.
A coffee machine according to claim 8 wherein:

The first sealing ring has a U-shaped cross section; the upper portion of the inner wall of the inner bucket is provided with a second annular boss, and the upper portion of the outer wall of the outer bucket is provided with a second annular step;

When the processing bucket is mounted on the mainframe, the first sealing ring is sleeved onto the second annular boss, and the bucket cover assembly presses an upper portion of the first sealing ring to the second An upper surface of the annular boss, the second annular step pressing the lower portion of the first sealing ring against the lower surface of the second annular boss.
A coffee machine according to claim 7 wherein:

The bucket cover assembly includes a first bucket cover, and a water inlet of the second cavity is disposed on the first bucket cover.
The coffee machine according to claim 10, wherein the water inlet of the second cavity comprises: the first surface of the first bucket cover is provided with a first water tank in an annular shape, The first water inlet is connected to the first water inlet; the lower surface of the first bucket cover is provided with a second water tank which is annular and communicates with the second cavity; and the inner wall of the first water tank is provided with a plurality of a first through-hole is disposed between each of the adjacent first segment bosses, and the first water tank communicates with the second water tank through the first through hole.
A coffee machine according to claim 7 wherein:

The coffee machine further includes a power mechanism disposed on the host;

The power mechanism is coupled to the processing bucket to drive the processing bucket to comminute coffee beans or to agitate the ground coffee when the processing bucket is mounted to the mainframe.
A coffee machine according to claim 12, wherein said power mechanism is located above said processing bucket when said processing bucket is mounted to said mainframe.
A coffee machine according to claim 12, wherein:

The bucket cover assembly includes a second bucket cover, a sleeve, a bearing, a second sealing ring, a gasket, a connector, a shaft and a cutter;

The water inlet of the second cavity is disposed on the second bucket cover; the sleeve is fixed at the center of the end surface of the second bucket cover and penetrates in the thickness direction of the second bucket cover, The second sealing ring and the bearing are fixedly sleeved in the sleeve from the outer end surface side of the second bucket cover, and the shaft is sleeved in the second sealing ring and the bearing. The gasket is sleeved on the shaft; the shaft is provided with one end of the shaft, and the other end is provided with the cutter, the gasket is located between the joint and the bearing;

The connector is coupled to the power mechanism when the processing bucket is mounted to the mainframe.
A coffee machine according to claim 14 wherein said shaft is screwed or riveted to said cutter The fixed connection is a coupling head that is coupled to the power mechanism.
A coffee machine according to claim 15 wherein:

The power mechanism includes a motor and a motor coupling head electrically connected to a power source;

The mainframe further includes a motor mounting plate; the top of the first outer casing is open;

The motor mounting plate is provided with a central through hole extending through the thickness thereof, and the motor mounting plate is fastened and fixed to the top of the first outer casing; the motor shaft of the motor passes through the central through hole and the end thereof The motor coupling head is fixedly disposed, and the motor is fixed on the motor mounting plate;

The connecting head is coupled to the motor coupling head when the processing bucket is mounted to the main body via an open portion of the side wall of the first outer casing, and the coffee cup may pass through a side of the first outer casing The opening of the wall is disposed within the hollow of the first outer casing.
A coffee machine according to claim 16 wherein said motor is a slow motor and said tool is a stirring knife.
A coffee machine according to claim 16 wherein:

The motor is a fast motor, and the cutter is a pulverizing knife;

The processing bucket further includes a protection bucket, and the protection bucket is provided with a plurality of second through holes;

The mainframe further includes a motor mounting bracket; the motor mounting bracket is fixedly mounted on the motor mounting plate, the motor is fixedly mounted on the motor mounting bracket, and a motor shaft of the fast motor passes through the center a through hole and a motor coupling head fixed at an end thereof;

When the processing bucket is mounted on the main body through the open side of the side wall of the first outer casing, the protection bucket is sleeved in the inner bucket, and the connector is coupled to the motor coupling head. The coffee cup may be disposed within the hollow portion of the first outer casing by opening of a side wall of the first outer casing.
The coffee maker according to claim 18, wherein the inner wall of the protective bucket is provided with a plurality of first projections.
The coffee machine according to claim 16, wherein a matching area of the motor mounting plate and the top of the first outer casing is provided with a third sealing ring.
The coffee maker according to claim 16, wherein a fourth seal ring is disposed between the motor shaft of the motor and the center through hole.
A coffee machine according to claim 16 wherein:

The first water inlet is disposed on the motor mounting plate;

a side of the motor mounting plate opposite to the processing bucket is provided with a third water tank having an annular shape, and the third water tank is connected to the first water inlet;

a side of the second bucket cover opposite to the motor mounting plate is provided with an annular fourth water tank, the fourth water tank ring is disposed at a periphery of the connecting head, the fourth water tank and the fourth water tank The inlet of the second cavity is connected;

When the processing bucket is mounted to the main body, the third water tank and the fourth water tank are engaged with each other to form a third cavity.
The coffee machine according to claim 22, wherein the structural form of the water inlet of the second cavity comprises:

a side of the second bucket cover opposite to the inner bucket is provided with a fifth annular water tank that communicates with the second cavity; and a plurality of first side walls of the fourth water tank And a second through hole is disposed between each of the adjacent second segment bosses, and the fourth water tank communicates with the fifth water tank through the third through hole.
A coffee machine according to claim 22, wherein:

a top surface of the outer ring of the third water tank is provided with a first sealing groove, and a top surface of the inner ring of the third water tank is provided with a second sealing groove;

a fifth sealing ring is disposed between the first sealing groove and the top surface of the outer ring of the fourth water tank when the processing bucket is mounted on the main body, and the second sealing groove is A sixth sealing ring is disposed between the top surfaces of the inner rings of the fourth water tank.
The coffee machine according to any one of claims 16 to 18, wherein the structural form of the motor mounting plate fastened to the top of the first outer casing comprises:

a plurality of second protrusions are disposed in a circumferential direction of the motor mounting plate, and a plurality of first grooves are disposed on an inner side of the top of the first outer casing, and each of the second protrusions and each of the first grooves are vertical Straight distribution and one-to-one snap fit.
A coffee machine according to any one of claims 6 to 24, wherein:

The main body further includes a water tank, a first water pipe, a second water pipe, a U-shaped heating pipe, a U-shaped heating element, a heat-conducting connecting member, a reset thermostat for preventing dry burning, a control circuit board, a main power switch, and a power supply Connector, display with multiple function buttons;

The water tank communicates with one end of the U-shaped heating pipe through the first water pipe, and the other end of the U-shaped heating pipe communicates with the first water inlet through the second water pipe; the U-shaped heating pipe Connecting to the U-shaped heat generating component through the heat conducting connecting member; the first water pipe is provided with a check valve;

The power connector is electrically connected to the main power switch; the reset thermostat is electrically connected to the U-shaped heat generating component, and the display screen, the main power switch, and the reset thermostat are all The control board is electrically connected.
A coffee machine according to claim 26, wherein:

The host further includes a second outer casing and a fixing frame;

The fixing bracket fixes the U-shaped heating tube and the U-shaped heating element to the bottom of the first housing, and the reset thermostat is disposed at the bottom of the U-shaped heating element; the first housing Engaging with the second outer casing to form a fourth cavity, The water tank is disposed on the second casing and located in the fourth cavity, the first water pipe, the one-way valve, the second water pipe, the fixing frame, and the U-shaped heating pipe The U-shaped heat generating member, the reset thermostat, the heat conducting connecting member, and the control circuit board are all located in the fourth cavity; the power connector and the main power switch are all disposed at The display screen is disposed on the first housing on the second housing.
A coffee machine according to claim 26, wherein said second water pipe is in communication with said first water inlet through a water pipe adapter, said water pipe adapter being V-shaped; said water pipe adapter and said A seventh sealing ring is provided at the joint of the first water inlet.
The coffee machine according to claim 28, wherein the water pipe adapter is provided with a temperature control sensor; the temperature control sensor is electrically connected to the control circuit board and located in the fourth cavity.
The coffee maker according to claim 26, wherein the top of the water tank is provided with a water tank cover that can be turned over and closed, and the inside of the water tank is provided with a scale line.
A coffee machine according to claim 26, wherein:

The host further includes a plurality of Hall sensors, each of which is electrically connected to the control circuit board, and is disposed on the first housing;

The outer wall of the outer bucket is provided with a first handle, and the upper part of the first handle and the outer wall of the coffee cup are respectively provided with a magnet; when the processing bucket and the coffee cup are installed in position, the first handle The magnets, the magnets on the coffee cup, respectively correspond to the Hall sensors at different positions on the first housing.
A coffee machine according to claim 26, wherein:

The first housing is further provided with a bi-color indicator light electrically connected to the control circuit board; when the coffee cup is installed in position, the two-color indicator light turns blue; when the coffee machine is in a warm state, the The two-color indicator turns red.
A coffee machine according to claim 26, wherein:

The main body is provided with a plurality of illumination indicators for prompting the processing bucket to be installed in position and illuminating the interior of the processing bucket, and each of the illumination indicators is electrically connected to the control circuit board; The illumination indicators are circumferentially evenly distributed, and each of the illumination indicators is located above the processing bucket when the processing bucket is mounted to the mainframe.
The coffee machine according to any one of claims 1 to 24, wherein the structural form of the processing bucket mounted to the mainframe comprises:

The inner wall of the outer bucket is provided with a plurality of second grooves, and the side wall of the main body is provided with a plurality of third protrusions that can be snap-fitted with each of the second grooves; The flow direction of the two grooves is toward the bottom of the outer bucket, and the tail portion of each of the second grooves is provided with a limiting portion for restricting the movement of the outer bucket.
A coffee machine according to any one of claims 1 to 24, wherein the processing hopper is made of a food grade high temperature resistant transparent material.
The coffee machine according to any one of claims 1 to 24, wherein the first water outlet is located at a bottom of the outer bucket, and the bottom of the outer bucket is provided with an open valve assembly, the top opening a valve assembly is in communication with the first water outlet; a gasket is circumferentially disposed at an edge of the bottom of the outer bucket, the height of the gasket is not less than a height of the top valve assembly; the processing bucket is mounted to The coffee cup may be located below the top valve assembly when the main body is on the main unit.
A coffee machine according to claim 36, wherein:

The top valve assembly includes a spring, a plug, a slider, and a support block;

The spring is disposed laterally on the bottom of the outer bucket through the support block, and the plug is connected to the plug at one end thereof, and the spring is fixedly connected with the slider;

a push block is disposed on the cup cover of the coffee cup; when the coffee cup enters the bottom of the top open valve assembly, the push block pushes the slider to move to compress the spring, so that the plug leaves the a first water outlet; the spring rebounds when the coffee cup leaves below the top valve assembly, such that the plug blocks the first water outlet.
A coffee machine according to claim 37, wherein the area of the slider in contact with the push block is stepped.
A coffee machine according to claim 37, wherein:

a side wall of the cup of the coffee cup is provided with a second handle; the cup of the coffee cup and the cup lid of the coffee cup are in an inverted connection, and the position of the flip connection is set on the second handle a surface of the coffee cup; a fourth through hole, wherein the fourth through hole is located on a connecting axis of the position of the flip connection and the center of the cup lid of the coffee cup, the cup of the coffee cup A fourth protrusion is disposed on the edge of the body, and the fourth through hole and the fourth protrusion are correspondingly located and can cooperate with each other.