CN108618622A - Coffee machine with automatic coffee making function - Google Patents
Coffee machine with automatic coffee making function Download PDFInfo
- Publication number
- CN108618622A CN108618622A CN201810846583.8A CN201810846583A CN108618622A CN 108618622 A CN108618622 A CN 108618622A CN 201810846583 A CN201810846583 A CN 201810846583A CN 108618622 A CN108618622 A CN 108618622A
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- Prior art keywords
- brewing
- coffee
- cavity
- water
- head
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 184
- 230000006835 compression Effects 0.000 claims abstract description 63
- 238000007906 compression Methods 0.000 claims abstract description 63
- 238000004080 punching Methods 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 57
- 238000007789 sealing Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 239000004519 grease Substances 0.000 abstract description 6
- 235000013361 beverage Nutrition 0.000 abstract 3
- 238000000034 method Methods 0.000 description 7
- 238000010025 steaming Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009702 powder compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013124 brewing process Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
The present invention provides a kind of coffee machine with automatic coffee making function, including brew head mechanism, driving mechanism, water circuit system and control loop, the brew head mechanism is connected to the water circuit system, it simultaneously carries out brewing operation under the drive of the driving mechanism to the ground coffee in the beverage making cavity, and the brew head mechanism includes：Beverage making cavity；Brew head；Punch assembly is provided in the brew head, the punch assembly is configured to carry out compression operation to the ground coffee in the beverage making cavity at the end of the first stroke；Trigger switch component, it is set to the control loop, it is configured to switch over the first stroke of the brew head and the second stroke, and it triggers the punch assembly and carries out punching operation, coffee machine through the invention can reduce the range demands of brew head mechanism, driving mechanism, while reduce the loss of brew head mechanism, and provide the preferable ground coffee degree of compression, so that the grease in ground coffee is more fully oozed out, brews the better coffee of mouthfeel.
Description
Technical Field
The invention relates to the field of kitchen appliances, in particular to a coffee machine with an automatic brewing function.
Background
Currently, coffee machines with automatic brewing function in the market generally compress coffee powder by driving and transmitting through an external motor and a transmission mechanism. In this way, a large stroke of the motor and the transmission mechanism needs to be preset to ensure that the coffee powder with a small compression amount is fully compressed, but when the coffee powder amount is large and the brewing head is still driven by a large stroke, the transmission mechanism and the motor are subjected to certain loss, and the performance requirement on the motor is high.
In the published patent document, as the chinese patent with the publication number CN206525946U, a compensation spring is fixedly installed on the top of the powder pressing head, the powder pressing head is connected to the vertical driving assembly through the compensation spring, the powder pressing head can adapt to coffee powders with different thicknesses in the mesh cup through the compensation spring, so as to provide sufficient pressure for the coffee powders with different thicknesses, and in the process that the powder pressing head presses the coffee powders in the mesh cup, after the water diversion plate at the bottom of the powder pressing head contacts the coffee powders, the compensation spring starts to contract, and then the handle is continuously rotated to enable the compensation spring to continue to contract, so as to provide sufficient pressure for the coffee powders to form the coffee powder cake.
Therefore, it is urgently needed to provide a coffee powder brewing device which can reduce loss, increase the compression degree of coffee powder and prevent coffee from overflowing during brewing so as to improve the experience of users.
Disclosure of Invention
In view of the above problems in the prior art, the present invention provides a coffee maker with an automatic brewing function, which can solve the above problems.
In order to achieve the purpose, the embodiment of the invention adopts the technical scheme that:
a coffee machine with an automatic brewing function comprises a brewing head mechanism, a driving mechanism, a water path system and a control loop, wherein the brewing head mechanism is communicated with the water path system and is driven by the driving mechanism to brew coffee powder in a brewing cavity, and the brewing head mechanism comprises:
a brewing chamber configured to have a receiving space for receiving coffee powder;
the brewing head is configured to have a first stroke which is driven by the driving mechanism to extend into the accommodating space of the brewing cavity, and a second stroke which is driven by the driving mechanism to leave the accommodating space; a stamping assembly is arranged in the brewing head and is configured to compact the coffee powder in the brewing chamber at the end of a first stroke;
the trigger switch assembly is arranged on the control circuit and is configured to switch a first stroke and a second stroke of the brewing head and trigger the stamping assembly to perform stamping operation;
therefore, the stroke requirements of the brewing head mechanism and the driving mechanism can be effectively reduced, the loss of the brewing head mechanism is reduced, and better coffee powder compression degree is provided, so that grease in the coffee powder can be more fully exuded, and coffee with better taste can be brewed.
Preferably, the trigger switch assembly comprises a first trigger switch, a second trigger switch and a rotary shifting rod, wherein one end of the rotary shifting rod is rotatably connected with the driving mechanism and is driven by the driving mechanism to rotate by taking one end of the rotary shifting rod as an axis; the first trigger switch and the second trigger switch are respectively arranged corresponding to the rotary deflector rod, so that the first trigger switch and the second trigger switch can be triggered in the rotation of the rotary deflector rod, and therefore the brewing head can be stopped at a set position accurately and switched between the first stroke and the second stroke accurately.
Preferably, the first trigger switch and the second trigger switch are arranged on the control circuit and individually control the on-off of the control circuit, wherein the first trigger switch is configured to control the first stroke of the brewing head; the second trigger switch is configured to control a second stroke of the brew head, avoiding the occurrence of simultaneous triggering of the first stroke and the second stroke.
Preferably, the brew head mechanism further comprises a gear assembly and linkage assembly: wherein the gear assembly is rotationally coupled to the linkage assembly; the connecting rod assembly is fixedly connected with the brewing head; the gear assembly drives the connecting rod assembly to move under the driving of the driving mechanism and drives the brewing head to move so as to perform stamping operation, and through arrangement among the assemblies with different functions, the movement of the brewing head can be effectively realized, and the stroke requirements of the brewing head mechanism and the driving mechanism are met.
Preferably, the gear assembly comprises a drive gear and a driven gear which mesh with each other; the connecting rod assembly comprises a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are rotatably connected at one ends corresponding to each other; the other end of the first connecting rod is rotationally connected with the driven gear, and the other end of the second connecting rod is fixedly connected with the brewing head; the driving gear is driven by the driving mechanism to drive the driven gear to rotate, and the first connecting rod and the second connecting rod drive the brewing head to move; through the corresponding arrangement of the driving gear, the driven gear and the first connecting rod and the second connecting rod, the stroke of the brewing head is limited to the maximum extent, and the overlarge stroke is avoided.
Preferably, the brewing head comprises a brewing head body and a brewing head cover, wherein the brewing head body is provided with a through cavity, the brewing head cover blocks one port of the cavity, and the other port of the cavity is in butt joint with the port of the brewing cavity in a shape matching manner; in the process of brewing coffee, the brewing head and the brewing cavity can be sealed, and the coffee liquid is prevented from overflowing in a high-pressure state.
Preferably, the punch assembly includes a compression block driving body and a compression block connected to each other; the brewing head comprises a cavity, a brewing head body, a compression block driving body, a pressure sensor and a control circuit, wherein the compression block driving body is installed into the cavity of the brewing head body from the other port of the cavity of the brewing head body in a shape matched mode through one end of the compression block driving body and can move back and forth in the cavity of the brewing head body; the compression block is arranged in a shape matched with the brewing cavity, extends into the accommodating space of the brewing cavity under the driving of the compression block driving body and can move back and forth, so that the compression block extrudes coffee powder in the accommodating space of the brewing cavity; the coffee powder in the brewing cavity is extruded by the compression block, so that better coffee powder compression degree can be provided, grease in the coffee powder can be more fully exuded, and coffee with better taste can be brewed.
Preferably, the brewing head mechanism further comprises a compression cavity water inlet pipe and a coffee powder water inlet pipe, and is communicated with the water path system through the compression cavity water inlet pipe and the coffee powder water inlet pipe; the brewing head cover is provided with two through holes, wherein the compression cavity water inlet pipe is communicated with the cavity of the brewing head body through a corresponding through hole of the compression cavity water inlet pipe to provide acting force for the compression block driving body; the coffee powder inlet pipe is communicated with the brewing cavity through the other through hole corresponding to the coffee powder inlet pipe so as to provide hot water for brewing coffee; by means of the two water pipes having different purposes, different requirements can be provided, for example, the supply of force, or high-pressure hot water, or high-pressure steam.
Preferably, the brewing head mechanism further comprises a first sealing ring and a second sealing ring, wherein the first sealing ring is sleeved on the outer peripheral surface of the large body of the brewing head and forms a seal with the surface of the port of the brewing cavity; the second sealing ring is sleeved on the peripheral surface of the compression block so as to be attached to the inner wall of the brewing cavity to form sealing after the compression block enters the brewing cavity; due to the arrangement of the double seal, the sealing effect is better, and the provided acting force and high-pressure hot water or high-pressure steam are fully utilized.
Preferably, the driving mechanism comprises a motor with an output shaft, the output shaft is fixedly connected with the driving gear, and the driving gear is driven by the output shaft to rotate so as to provide power for the coffee machine.
Preferably, the rotary deflector rod is provided with a handle part and a hammer head part, wherein one end of the handle part is fixedly connected with the hammer head part, the other end of the handle part is fixedly connected with the driven gear shaft, and the rotary deflector rod is driven by the driven gear shaft to rotate so as to trigger the first trigger switch or the second trigger switch, so that the limited space of the coffee machine is utilized to the maximum extent, meanwhile, the structure is simple, and the corresponding function can be efficiently realized.
Preferably, the waterway system comprises: the water supply pipeline is respectively communicated with the brewing pipeline and the pressure relief pipeline through the function change-over switch; the function changeover switch includes: a water inlet, a first water outlet, a second water outlet and a third water outlet, wherein the water supply pipeline is communicated with the brewing pipeline through the water inlet and the first water outlet; the water supply pipeline is communicated with the pressure relief pipeline through the water inlet and the second water outlet; the water supply line discharges the remaining water through the water inlet and the third water outlet; when the water supply pipeline provides high-pressure hot water, the requirement of brewing coffee is met, and the requirement of using safety is met.
Preferably, the water supply pipeline comprises a water tank, a flow meter, a water pump and a heating pot which are sequentially arranged on the water channel system, and the heating pot is communicated with the water inlet through a pipeline; thus, high-pressure hot water or high-pressure steam satisfying the coffee brewing requirement can be provided.
Preferably, the brewing pipeline comprises a first three-way valve, a two-way solenoid valve and a three-way solenoid valve, wherein a valve inlet of the first three-way valve is communicated with a first water outlet of the function switch; a valve outlet of the first three-way valve is communicated with the two-way electromagnetic valve and is communicated with the corresponding coffee powder inlet pipe; the other valve outlet of the first three-way valve is communicated with the three-way electromagnetic valve and is communicated with the corresponding compression cavity water inlet pipe; to provide the high pressure hot water or high pressure steam required to brew the coffee.
Preferably, the pressure relief pipeline comprises a second three-way valve and a pressure relief tank, wherein a valve inlet of the second three-way valve is communicated with a second water outlet of the function switch; the other valve inlet of the second three-way valve is communicated with the valve outlet of the three-way electromagnetic valve; a valve outlet of the second three-way valve is communicated with the pressure relief tank; when the pressure of the high-pressure hot water or high-pressure steam provided by the water supply pipeline exceeds the set pressure, the pressure can be timely and respectively released from the two valve inlets of the second three-way valve in the pressure release pipeline, so that the safety of an operator is ensured.
Compared with the prior art, the invention has the beneficial effects that: the coffee machine with the automatic brewing function can effectively reduce the stroke requirements of the brewing head mechanism and the driving mechanism, simultaneously reduce the loss of the brewing head mechanism, and provide better coffee powder compression degree, so that grease in the coffee powder can be more fully exuded, and coffee with better taste can be brewed; and because of having double seal structure, prevent the coffee from overflowing while infusing; in addition, the water channel system can switch between the functions of brewing coffee and steaming, and has pressure relief protection, so that high-pressure hot water and high-pressure water vapor in the water channel are prevented from being sprayed out rapidly, and potential safety hazards to operators, which are possibly generated by the high-pressure hot water and the high-pressure water vapor, are effectively avoided.
Drawings
FIG. 1 is a schematic view of a water circuit system of a coffee maker with an automatic brewing function according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view of a brew head mechanism of a coffee maker having an automatic brewing function in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of a brew head mechanism of a coffee maker having an automatic brewing function, in accordance with an embodiment of the present invention;
FIG. 5 is a schematic view of a brew head mechanism of a coffee maker having an automatic brewing function, in accordance with an embodiment of the present invention;
FIG. 6 is a schematic view of a brew head of a coffee maker having an automatic brewing function in accordance with an embodiment of the present invention;
FIG. 7 is a schematic view of the seal of the coffee maker with automatic brewing function according to the embodiment of the present invention;
FIG. 8 is a schematic view of a water circuit system of a coffee maker with automatic brewing function according to an embodiment of the present invention during making coffee;
FIG. 9 is a schematic view of a water circuit system of a coffee maker with automatic brewing function according to an embodiment of the present invention during making coffee;
FIG. 10 is a schematic view of a water circuit system of a coffee maker with an automatic brewing function according to an embodiment of the present invention during the process of making coffee;
FIG. 11 is a schematic view of a water circuit system of a coffee maker with automatic brewing function according to an embodiment of the present invention during making coffee;
FIG. 12 is a schematic view of a water circuit system of a coffee maker with automatic brewing function according to an embodiment of the present invention during making coffee;
fig. 13 is a schematic circuit diagram of a control circuit of a coffee maker with an automatic brewing function according to an embodiment of the present invention.
Description of the reference numerals
1 gear assembly 2 first trigger switch 3 second trigger switch 4 rotary deflector rod
5 connecting rod assembly 6 motor 7 brewing head 8 brewing cavity
11 drive gear 12 driven gear 15 first link 16 second link
21 water tank, 22 flowmeter, 23 water pump, 24 heating pot, 25 function change-over switch
26 a first three-way valve 27 a two-way solenoid valve 28 a three-way solenoid valve 29 a second three-way valve
30 pressure relief box 35 coffee powder 36 compression chamber inlet tube
38 coffee powder inlet pipe 40 coffee cup 41 brewing head cover 42 brewing head big body
45 compression block driving body 46 compression block
47 first seal 48 and second seal 50 compression chamber
51 Container for receiving steam
I water inlet
II first water outlet
III second water outlet
IV third water outlet
CM coffee machine of this embodiment
N positive electrode
L-shaped cathode
Detailed Description
The following detailed description of specific embodiments of the present invention is provided in connection with the accompanying drawings, which are not intended to limit the invention.
The coffee machine with the automatic brewing function is correspondingly improved aiming at the problems in the prior art, so that the stroke requirements of the brewing head mechanism and the driving mechanism are effectively reduced, the loss of the brewing head mechanism is reduced, the brewing head structure is designed, the design of a pressure relief water path for ensuring the safety of an operator in the process of providing high-pressure hot water or high-pressure steam is avoided, and the coffee machine with the automatic brewing function is described from the perspective of solving different problems.
In addition, it should be noted that in this embodiment, all the valve bodies appearing in the waterway system, specific water flow directions need to refer to arrow directions in the waterway system in the drawings on the basis of the description in combination with the text, so as to more clearly understand the specific functions realized by the design, and the flow directions in the pipelines will not be described in detail with too many texts, and are only described by the related valve bodies.
Referring to fig. 1 to 12, an embodiment of the present invention provides a coffee machine with an automatic brewing function, including a brewing head mechanism, a driving mechanism, a water path system and a control circuit, wherein the brewing head mechanism is communicated with the water path system and is driven by the driving mechanism to perform a brewing operation on coffee powder 35 in a brewing chamber 8, and the brewing head mechanism includes:
a brewing chamber 8 configured to have a receiving space for receiving coffee powder 35; a brewing head 7 configured to have a first stroke driven by the driving mechanism to extend into the accommodating space of the brewing chamber 8 and a second stroke driven by the driving mechanism to leave the accommodating space; a punching assembly is arranged inside the brewing head 7, said punching assembly being configured to perform a compacting operation of the coffee powder 35 inside the brewing chamber 8 at the end of the first stroke; the trigger switch assembly is arranged on the control circuit and is configured to switch a first stroke and a second stroke of the punching head 7 and trigger the punching assembly to perform punching operation; therefore, the stroke requirements of the brewing head mechanism and the driving mechanism can be effectively reduced, the loss of the brewing head mechanism is reduced, and the better compression degree of the coffee powder 35 is provided, so that the grease in the coffee powder 35 can be more fully exuded, and the coffee with better taste can be brewed.
In order to realize the accurate switching of the brewing head 7 between the first stroke and the second stroke, in this embodiment, particularly, with reference to fig. 3, 4 and 13, the trigger switch assembly includes a first trigger switch 2, a second trigger switch 3 and a rotary shift lever 4, wherein one end of the rotary shift lever 4 is rotatably connected to the driving mechanism and is driven by the driving mechanism to rotate with one end of the rotary shift lever 4 as a shaft; the first trigger switch 2 and the second trigger switch 3 are respectively arranged corresponding to the rotary shift lever 4, so that the rotary shift lever 4 can trigger the first trigger switch 2 and the second trigger switch 3 during rotation, thereby realizing that the brewing head 7 accurately stays at a set position and accurately switches between the first stroke and the second stroke, and in fig. 13, a circuit schematic diagram of a control circuit of the coffee machine with the automatic brewing function is shown.
The first trigger switch 2 and the second trigger switch 3 are arranged in the control loop and independently control the on-off of the control loop, wherein the first trigger switch 2 is configured to control the first stroke of the brewing head 7; the second trigger switch 3 is configured to control the second stroke of the brewing head 7, so as to avoid the occurrence of the situation of triggering the first stroke and the second stroke at the same time, in this embodiment, in order to avoid the occurrence of the foregoing situation, the first trigger switch 2 and the second trigger switch 3 are not allowed to be closed at the same time, and in addition, considering that the movements of the brewing head 7 in the first stroke and the second stroke are opposite to each other, the forward and reverse rotation of the motor 6 is one of convenient implementation manners, and of course, can be implemented by other manners, and is not limited herein; in fig. 13, the first trigger switch 2 and the second trigger switch 3 are set in a mutually exclusive manner, and the two power supplies are set in a manner that the positive pole N and the negative pole L are opposite to each other, so as to ensure that the motor 6 realizes forward and reverse rotation when the different trigger switches are closed, and further realize that the brewing head 7 of the coffee machine of the embodiment can move in opposite directions in the first stroke and the second stroke.
With reference to fig. 3 and 4, the brew head mechanism further comprises a gear assembly 1 and a linkage assembly 5: wherein, the gear assembly 1 is rotationally connected with the connecting rod assembly 5; the connecting rod assembly 5 is fixedly connected with the brewing head 7; the gear assembly 1 is driven by the driving mechanism to drive the connecting rod assembly 5 to move and drive the brewing head 7 to move so as to perform stamping operation; wherein the gear assembly 1 includes a driving gear 11 and a driven gear 12 engaged with each other; the link assembly 5 includes a first link 15 and a second link 16, and the first link 15 and the second link 16 are rotatably connected at one ends corresponding to each other; wherein, the other end of the first connecting rod 15 is rotationally connected with the driven gear 12, and the other end of the second connecting rod 16 is fixedly connected with the brewing head 7; the driving gear 11 is driven by the driving mechanism to drive the driven gear 12 to rotate, and the brewing head 7 is driven to move through the first connecting rod 15 and the second connecting rod 16; through the corresponding arrangement of the driving gear 11 and the driven gear 12, and the first connecting rod 15 and the second connecting rod 16, through the arrangement between components with different functions, the movement of the brewing head 7 is effectively realized, the stroke requirements of a mechanism and a driving mechanism of the brewing head are met, the stroke of the brewing head 7 is limited to the maximum extent, and the overlarge stroke is avoided.
Referring to fig. 5 to 7, the brewing head 7 comprises a brewing head body 42 and a brew head cover 41, wherein the brewing head body 42 has a through chamber, one port of which is closed off by the brew head cover 41, and the other port of which forms a butt joint with a port of the brewing chamber 8 in a form-fitting manner; so that the brewing head 7 and the brewing chamber 8 can be sealed during brewing coffee, avoiding spillage of coffee liquid under high pressure, and for sealing purposes a sealing ring is provided on the outer circumferential surface of the brewing head body 42, which design will be described further below.
In order to press the coffee powder 35 in the brewing chamber 8 so as to brew the coffee having better taste, the pressing assembly includes a compression block driving body 45 and a compression block 46 connected to each other; the compression block driving body 45 is installed into the cavity of the brewing head body 42 from the other port of the cavity of the brewing head body 42 in a shape-fitting manner, and can move back and forth in the cavity of the brewing head body 42, and the reciprocating movement is to switch between a first stroke and a second stroke, which is only expressed by the back and forth movement for convenience of description; the compression block 46 is disposed in a shape matching with the brewing chamber 8, extends into the accommodating space of the brewing chamber 8 under the driving of the compression block driving body 45, and can move back and forth, so that the compression block 46 presses the coffee powder 35 in the accommodating space of the brewing chamber 8, and the structure of the contact surface between the compression block 46 and the coffee powder 35 may be a flat surface, a fence-shaped surface or a wave-shaped surface, which is not limited herein; the coffee powder 35 in the brewing cavity 8 is extruded by the compression block 46, so that the better compression degree of the coffee powder 35 can be provided, the grease in the coffee powder 35 can be more fully exuded, and the coffee with better taste can be brewed.
It should be noted that, since the amount of the coffee powder 35 put into the containing space of the brewing chamber 8 is not determined during each coffee brewing process, the first trigger switch 2 and the second trigger switch 3 are arranged for this purpose, that is, although the coffee powder 35 is compressed, the compression strength is not completely consistent, the arrangement of the trigger switch according to the present invention is performed in order to meet the requirement of reducing the stroke of the brewing head mechanism and the driving mechanism, and at the same time, the damage of the brewing head 7 and even the damage of the coffee machine, which may be caused by the excessive amount of the coffee powder 35, is prevented.
In order to provide hot water for brewing coffee, the brewing head mechanism further comprises a compression chamber water inlet pipe 36 and a ground coffee water inlet pipe 38, see fig. 5 and 6, and is communicated with the waterway system through the compression chamber water inlet pipe 36 and the ground coffee water inlet pipe 38; the brew head cover 41 is provided with two through holes (not shown in the figures), wherein the compression cavity water inlet pipe 36 is communicated with a cavity of the brew head body 42 through a corresponding through hole, i.e. a compression cavity 50 for providing an acting force for the compression block driving body 45 through high-pressure hot water, in the embodiment, the acting force is used for extruding the compression block driving body 45 and driving the compression block 46 to extrude the coffee powder 35 in the accommodating space of the brew cavity 8, see fig. 5 specifically; the coffee powder inlet pipe 38 is communicated with the brewing cavity 8 through the other corresponding through hole to provide hot water for brewing coffee; by means of the two water tubes with different purposes, different requirements can be provided, for example, the supply of force, or high pressure hot water, or high pressure steam, as to how to properly control when the high pressure hot water or high pressure steam is present beyond the need for brewing coffee, the specific design of which will be described in detail below.
Referring to fig. 5 and 7, in order to satisfy the sealing condition, the brewing head mechanism further comprises a first sealing ring 47 and a second sealing ring 48, wherein the first sealing ring 47 is sleeved on the outer peripheral surface of the brewing head main body 42 and forms a seal with the port surface of the brewing chamber 8; the second sealing ring 48 is sleeved on the outer peripheral surface of the compression block 46 so as to be attached to the inner wall of the brewing cavity 8 to form sealing after the compression block 46 enters the brewing cavity 8; due to the arrangement of the double seal, the sealing effect is better, and the provided acting force and high-pressure hot water or high-pressure steam are fully utilized.
In order to provide the power required for the operation of the coffee maker, in this embodiment, the driving mechanism includes a motor 6 having an output shaft, the output shaft is fixedly connected to a driving gear 11, the driving gear 11 is driven by the output shaft to rotate, and further drives the brew head 7 to move through the connecting rod assembly 5.
In order to effectively utilize the limited space in the coffee machine to accurately trigger the first trigger switch 2 and the second trigger switch 3, the rotary deflector rod 4 is provided with a handle part and a hammer head part, wherein one end of the handle part is fixedly connected with the hammer head part, the other end of the handle part is fixedly connected with the driven gear shaft, and the rotary deflector rod 4 is driven by the driven gear shaft to rotate so as to trigger the first trigger switch 2 or the second trigger switch 3, so that the limited space of the coffee machine is utilized to the maximum extent, meanwhile, the structure is simple, and the corresponding function can be efficiently realized; the specific structure of the rotary shift lever 4 is configured to be similar to that of a hammer or an anchor in this embodiment, that is, a handle and a hammer head connected thereto can trigger switches correspondingly arranged at different positions in two directions during the swinging process, and the structure of the rotary shift lever 4 can be selected on the premise that the triggering can be realized at different positions and is not triggered simultaneously, which is not specifically limited herein.
In order to provide the necessary force to the brewing graph, the high pressure hot water or high pressure steam required for brewing coffee, in the present embodiment, see in particular fig. 1, 2, 8 to 12, wherein the water circuit system comprises: the water supply pipeline is respectively communicated with the brewing pipeline and the pressure relief pipeline through the function change-over switch 25 and can provide corresponding high-pressure hot water and high-pressure steam; the function changeover switch 25 includes: the water supply pipeline is communicated with the brewing pipeline through the water inlet I and the first water outlet II; the water supply pipeline is communicated with the pressure relief pipeline through a water inlet I and a second water outlet III; the water supply pipeline discharges the residual water through a water inlet I and a third water outlet IV; when the water supply pipeline provides high-pressure hot water, the requirement of brewing coffee is met, and the requirement of using safety is met.
In this embodiment, the function switch 25 may be composed of a control switch and a corresponding valve body, and the control switch controls the specific opening or closing of the passage of the valve body, so long as the opening and closing functions of the corresponding passage can be realized, that is, the requirement of the present embodiment is met, which is not further limited herein, and the function switch 25 is described as a whole in the following description for the sake of brevity and clarity.
The water supply pipeline comprises a water tank 21, a flowmeter 22, a water pump 23 and a heating pot 24 which are sequentially arranged on the waterway system, and the heating pot 24 is communicated with the water inlet I through a pipeline; thus, high-pressure hot water or high-pressure steam satisfying the requirement for brewing coffee can be supplied and circulated through the inlet I of the function switch 25.
In order to provide high-pressure hot water or high-pressure steam required for brewing coffee and realize a corresponding pressure relief function, in the present embodiment, the brewing pipeline includes a first three-way valve 26, a two-way solenoid valve 27 and a three-way solenoid valve 28, wherein a valve inlet of the first three-way valve 26 is communicated with the first water outlet II of the function switch 25; a valve outlet of the first three-way valve 26 is communicated with the two-way electromagnetic valve 27 and is communicated with the corresponding coffee powder inlet pipe 38; the other valve outlet of the first three-way valve 26 communicates with the three-way solenoid valve 28 and with a corresponding compression chamber inlet conduit 36.
In the present embodiment, the pressure relief pipeline includes a second three-way valve 29 and a pressure relief tank 30, wherein a valve inlet of the second three-way valve 29 is communicated with the second water outlet III of the function switch 25; the other valve inlet of the second three-way valve 29 is communicated with the valve outlet of the three-way electromagnetic valve 28; a valve outlet of the second three-way valve 29 is communicated with a pressure relief tank 30; when the pressure of the high-pressure steam provided by the water supply pipeline exceeds the set pressure, the pressure can be timely released from the two valve inlets of the second three-way valve 29 in the pressure release pipeline respectively, so that the safety of an operator is ensured.
In this embodiment, the coffee machine with the automatic brewing function controls the opening or closing of different passages in the water path system to achieve the corresponding brewing function, steaming function and american coffee making function, and the specific implementation processes are described below.
In order to realize the brewing function, referring to fig. 1, the passages of the water inlet I and the first water outlet II of the function switch 25 are opened, and the other passages are closed. The water pump 23 pumps water from the water tank 21 to the heating pot 24, after the water is rapidly heated, the high-pressure hot water flows through the water inlet I of the function switch 25, the passage of the first water outlet II and the first three-way valve 26 in sequence, and flows to the first three-way valve 26, and then is divided into two paths, one path flows into the coffee powder inlet pipe 38 through the two-way electromagnetic valve 27, and the other path flows into the compression cavity inlet pipe 36 through the three-way electromagnetic valve 28 to push the brewing head 7 to brew coffee, as can be seen from the arrow direction in fig. 1, for clearly observing the implementation process of different passages of the function switch 25, see fig. 2, which is an enlarged view of the function switch 25 in fig. 1; after brewing, with reference to fig. 1 and 8, coffee is received by the coffee cup 40; at this time, the water pump 23 and the heating pot 24 stop rotating, the water inlet I and the first water outlet II of the function switch 25 are closed, the corresponding first water outlet II and the second water outlet III of the function switch 25 and the water inlet I and the third water outlet IV of the function switch are opened, and the high-pressure water of the coffee powder inlet pipe 38 and the compression cavity inlet pipe 36 respectively flows back to the pressure relief tank 30 along the first water outlet II and the second water outlet III of the function switch 25 and the passage formed by the three-way solenoid valve 28 and the second three-way valve 29 for pressure relief.
Referring to fig. 9, to implement the steaming function, the steaming function is first started, the water inlet I and the third water outlet IV of the function switch 25 are opened, the water pump 23 pumps water from the water tank 21 to the heating pot 24 to rapidly heat the water, and then the high-pressure steam passes through the water inlet I and the third water outlet IV of the function switch 25 and is sprayed out of the container 51 for receiving steam, and is directly sprayed into the container; referring to fig. 10, after the steam is applied, the water inlet I and the third water outlet IV of the function switch 25 are closed, the water inlet I and the second water outlet III of the function switch 25 are opened, the water pump 23 and the heating pot 24 stop rotating, and the remaining high-pressure steam enters the water inlet I and the second water outlet III of the function switch 25 to be condensed and decompressed.
Referring to fig. 11, the waterway system is slightly modified to brew american coffee, and start the brewing american function, the water inlet I and the first water outlet II of the function switch 25 and the two-way solenoid valve 27 are opened, the water pump 23 pumps water from the water tank 21 to the heating pot 24 to heat the water rapidly, and then the hot water flows through the water inlet I and the first water outlet II of the function switch 25 and flows into the brewing head 7 to brew coffee; as shown in fig. 12, after the coffee is brewed by steaming, the passages of the water inlet I and the first water outlet II of the function switch 25 are closed, the passages of the water inlet I and the second water outlet III of the function switch 25 are opened, the water pump 23 and the heating pot 24 stop rotating, and the residual steam enters the passages of the water inlet I and the second water outlet III of the function switch 25 to be condensed and decompressed.
In this embodiment, the control circuit is correspondingly provided with switches with different functions, and the switches with different functions are used to accurately turn on the corresponding functions to brew coffee with different needs, which is not described in detail herein.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (15)
1. A coffee machine with automatic brewing function comprises a brewing head mechanism, a driving mechanism, a waterway system and a control loop, wherein the brewing head mechanism is communicated with the waterway system and is driven by the driving mechanism to brew coffee powder in a brewing cavity, and the brewing head mechanism is characterized by comprising:
a brewing chamber configured to have a receiving space for receiving coffee powder;
the brewing head is configured to have a first stroke which is driven by the driving mechanism to extend into the accommodating space of the brewing cavity, and a second stroke which is driven by the driving mechanism to leave the accommodating space; a stamping assembly is arranged in the brewing head and is configured to compact the coffee powder in the brewing chamber at the end of a first stroke;
and the trigger switch assembly is arranged on the control circuit and is configured to switch the first stroke and the second stroke of the brewing head and trigger the stamping assembly to perform stamping operation.
2. The coffee machine with automatic brewing function according to claim 1, wherein said trigger switch assembly comprises a first trigger switch, a second trigger switch and a rotary dial, wherein,
one end of the rotary shifting rod is rotationally connected with the driving mechanism and is driven by the driving mechanism to rotate by taking one end of the rotary shifting rod as a shaft;
the first trigger switch and the second trigger switch are respectively arranged corresponding to the rotary deflector rod, so that the first trigger switch and the second trigger switch can be triggered in the rotation of the rotary deflector rod.
3. The coffee machine with automatic brewing function according to claim 2, characterized in that the first trigger switch and the second trigger switch are arranged on the control circuit and individually control the on-off of the control circuit, wherein,
the first trigger switch is configured to control a first stroke of the brew head;
the second trigger switch is configured to control a second stroke of the brew head.
4. The coffee machine with automatic brewing function of claim 3, wherein said brewing head mechanism further comprises a gear assembly and a linkage assembly: wherein,
the gear assembly is rotationally connected with the connecting rod assembly;
the connecting rod assembly is fixedly connected with the brewing head;
the gear assembly is driven by the driving mechanism to drive the connecting rod assembly to move and drive the brewing head to move so as to perform stamping operation.
5. The coffee machine with automatic brewing function according to claim 4, characterized in that said gear assembly comprises a driving gear and a driven gear engaged with each other; the connecting rod assembly comprises a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are rotatably connected at one ends corresponding to each other; wherein,
the other end of the first connecting rod is rotationally connected with the driven gear, and the other end of the second connecting rod is fixedly connected with the brewing head;
the driving gear is driven by the driving mechanism to drive the driven gear to rotate, and the first connecting rod and the second connecting rod drive the brewing head to move.
6. The coffee machine with automatic brewing function according to claim 5, characterized in that the brewing head comprises a brewing head body and a brewing head cover, wherein,
the brewing head is provided with a through cavity on the large body, the brewing head cover seals one port of the cavity, and the other port of the cavity is in butt joint with the port of the brewing cavity in a shape matching manner.
7. The coffee machine with automatic brewing function according to claim 6, characterized in that said punching assembly comprises a compression block driving body and a compression block connected to each other; wherein,
the compression block driving body is installed into the cavity of the brewing head body from the other port of the cavity of the brewing head body in a shape matched mode through one end of the compression block driving body, and can move back and forth in the cavity of the brewing head body;
the compression block is matched with the brewing cavity in shape, extends into the accommodating space of the brewing cavity under the driving of the compression block driving body, and can move back and forth, so that the compression block extrudes the coffee powder in the accommodating space of the brewing cavity.
8. The coffee machine with automatic brewing function according to claim 7, wherein the brewing head mechanism further comprises a compression cavity water inlet pipe and a ground coffee water inlet pipe, and is communicated with the waterway system through the compression cavity water inlet pipe and the ground coffee water inlet pipe; the brewing head cover is provided with two through holes, wherein,
the compression cavity water inlet pipe is communicated with the cavity of the large body of the brewing head through a corresponding through hole of the compression cavity water inlet pipe to provide acting force for the compression block driving body;
the coffee powder inlet pipe is communicated with the brewing cavity through the other through hole corresponding to the coffee powder inlet pipe so as to provide hot water for brewing coffee.
9. The coffee machine with automatic brewing function according to claim 8, wherein said brewing head mechanism further comprises a first sealing ring and a second sealing ring, wherein,
the first sealing ring is sleeved on the outer peripheral surface of the brewing head body and forms sealing with the surface of the port of the brewing cavity;
the second sealing ring is sleeved on the peripheral surface of the compression block so as to be attached to the inner wall of the brewing cavity to form sealing after the compression block enters the brewing cavity.
10. The coffee machine with automatic brewing function according to claim 5, characterized in that the driving mechanism comprises a motor with an output shaft, the output shaft is fixedly connected with the driving gear, and the driving gear is driven by the output shaft to rotate.
11. The coffee machine with automatic brewing function according to claim 5, wherein the rotary shifting lever has a handle and a hammer head, wherein one end of the handle is fixedly connected with the hammer head, the other end of the handle is fixedly connected with the driven gear shaft, and the rotary shifting lever is driven by the driven gear shaft to rotate so as to trigger the first trigger switch or the second trigger switch.
12. The coffee machine with automatic brewing function according to claim 8, characterized in that said water circuit system comprises: the water supply pipeline is respectively communicated with the brewing pipeline and the pressure relief pipeline through the function change-over switch;
the function changeover switch includes: a water inlet, a first water outlet, a second water outlet and a third water outlet, wherein,
the water supply pipeline is communicated with the brewing pipeline through the water inlet and the first water outlet;
the water supply pipeline is communicated with the pressure relief pipeline through the water inlet and the second water outlet;
the water supply line discharges the remaining water through the water inlet and the third water outlet.
13. The coffee machine with automatic brewing function according to claim 12, wherein said water supply line comprises a water tank, a flow meter, a water pump and a heating pot sequentially arranged on a water path system, and said heating pot is communicated with said water inlet through a pipeline.
14. The coffee machine with automatic brewing function according to claim 13, characterized in that said brewing circuit comprises a first three-way valve, a two-way solenoid valve and a three-way solenoid valve, wherein,
a valve inlet of the first three-way valve is communicated with a first water outlet of the function switch; a valve outlet of the first three-way valve is communicated with the two-way electromagnetic valve and is communicated with the corresponding coffee powder inlet pipe;
and the other valve outlet of the first three-way valve is communicated with the three-way electromagnetic valve and is communicated with the corresponding compression cavity water inlet pipe.
15. The coffee machine with automatic brewing function according to claim 14, wherein said pressure relief circuit comprises a second three-way valve and a pressure relief tank, wherein,
a valve inlet of the second three-way valve is communicated with a second water outlet of the function switch;
the other valve inlet of the second three-way valve is communicated with the valve outlet of the three-way electromagnetic valve;
and a valve outlet of the second three-way valve is communicated with the pressure relief box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810846583.8A CN108618622A (en) | 2018-07-27 | 2018-07-27 | Coffee machine with automatic coffee making function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810846583.8A CN108618622A (en) | 2018-07-27 | 2018-07-27 | Coffee machine with automatic coffee making function |
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| CN108618622A true CN108618622A (en) | 2018-10-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110833329A (en) * | 2019-11-29 | 2020-02-25 | 深圳市西啡科技有限公司 | Brewing device and beverage machine |
| CN112773198A (en) * | 2019-11-11 | 2021-05-11 | 漳州灿坤实业有限公司 | Waterway structure and coffee machine |
| WO2023212914A1 (en) * | 2022-05-06 | 2023-11-09 | Haier Us Appliance Solutions, Inc. | Positioning system for a beverage dispenser |
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