CN106667270B

CN106667270B - Boiler for beverage extraction equipment

Info

Publication number: CN106667270B
Application number: CN201710106807.7A
Authority: CN
Inventors: 汪天平
Original assignee: Ningbo Seaver Intelligent Appliance Co ltd
Current assignee: Zhejiang Xiwen Intelligent Technology Co ltd
Priority date: 2017-02-27
Filing date: 2017-02-27
Publication date: 2022-09-20
Anticipated expiration: 2037-02-27
Also published as: CN106667270A

Abstract

The invention relates to a boiler for beverage extraction equipment, which comprises a boiler body with a water inlet channel and a water outlet channel, a heating pipe and a heating flow channel, wherein the heating pipe is arranged on the boiler body; the method is characterized in that: the boiler body includes outer boiler body and boiler core, and the heating runner is including locating the annular runner that sets up along boiler core periphery wall and the transition runner that is equipped with boiler core top surface, the initial end of annular runner with the water inlet channel intercommunication, annular runner's terminal end and transition runner's import intercommunication, the export of transition runner again with water outlet channel's import intercommunication, annular runner is by a plurality of mutual intercommunications runner and down runner are constituteed again, is equipped with a down runner between the adjacent two runner that goes upward, is equipped with a runner that goes upward between the adjacent two runner that goes downward. The whole heating route greatly increased of rivers, annular runner and transition runner directly set up between outer boiler body and boiler core simultaneously, and it is the direct heating, further ensures boiler heating efficiency, and the boiler can reach rapid heating (instant heating type).

Description

Boiler for beverage extraction equipment

Technical Field

The present invention relates to a water heating device, in particular to a boiler for a beverage extraction device, wherein the beverage extraction device may be a coffee machine or the like.

Background

The heating boiler in the existing coffee machine has two structural forms.

The first method comprises the following steps: the heating boiler comprises an upper boiler body and a lower boiler body, the upper boiler body is connected with the lower boiler body through screws, a sealing ring is arranged at the joint of an outer ring between the upper boiler body and the lower boiler body for sealing, a water inlet channel is formed in the upper boiler body, an electric heating pipe is arranged inside the lower boiler body, a spiral heating flow channel is arranged on the upper surface of the lower boiler body, a water outlet channel is arranged at the central position of the lower boiler body and axially penetrates through the lower bottom surface of the lower boiler body, the starting end of the circular heating flow channel is positioned on one side of the upper surface of the lower boiler body and is communicated with the water inlet channel, the terminal end of the circular heating flow channel is communicated with the water outlet channel, and a surface mount type temperature detector (NTC) capable of sensing the inside of the circular heating flow channel is arranged on the lower boiler body. For example, a coffee machine boiler structure with an upper and a lower combined type is disclosed in a Chinese utility model patent ZL201020536843.0 (with the publication number CN 201822657U). Half of the boiler body of the boiler is provided with the electric heating tube, the other half of the boiler body is provided with the flow channel, the unilateral boiler body generates heat to cause uneven up-and-down heating, the stroke of the unilateral flow channel is short, and the heating path of water is short, so that the heating is slow, and the next cup can be continuously brewed after coffee is brewed for a while.

And the second method comprises the following steps: adopt the heating boiler that the spiral pipe set up around the boiler body, chinese utility model patent "boiler for coffee machine" that patent number is ZL200920284695.5 (the announcement number is CN201631004U) discloses such boiler for coffee machine, and it includes furnace body, heating pipe and water pipe, is provided with water inlet and delivery port on the furnace body, the water pipe be the spiral and set up in the furnace body wall, the heating pipe be the spiral and set up in the water pipe outside furnace body wall, the heating pipe both ends respectively with two power interface connections. Because the water pipe is the spiral and sets up in the furnace body wall, the heating pipe is the spiral and sets up in the water pipe outside furnace body wall, the heat of heating pipe passes through the furnace body wall and transmits to the water pipe in, so both increased the area of contact of heating pipe with the furnace body wall, accelerate the heat transfer rate of heating pipe, the area of contact of furnace body wall and water pipe has been accelerated again, accelerate the rate of being heated of water pipe, and because the water pipe is helical structure, so water will be through longer heating tube from the water inlet to the delivery port, can guarantee to get into the water in the furnace body from the water inlet and reach the required temperature of coffee brewing at the delivery port, nevertheless there is the water pipe at the interval between this kind of heating boiler heating portion and the rivers, for indirect heating, first scheme is the direct heating mode, compare with first scheme, can promote a bit heating efficiency, nevertheless the promotion effect is not obvious.

Furthermore, the heating boiler in the existing coffee machine only plays a role of heating water, and does not play a role of compacting the capsule to form the extraction cavity, and the compacting effect also needs to be formed by additionally arranging a piston structure in the coffee machine.

In conclusion, the existing heating boiler can be further improved.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a boiler for beverage extraction equipment, which further improves the heating efficiency, and the boiler still adopts a direct heating mode, so as to realize an instant heating function.

The technical scheme adopted by the invention for solving the technical problems is as follows: a boiler for beverage extraction equipment comprises a boiler body with a water inlet channel and a water outlet channel, wherein a heating pipe is arranged in the boiler body, and a heating flow channel is also arranged in the boiler body; the method is characterized in that: the utility model discloses a boiler, including boiler body, outer boiler body and boiler core, outer boiler body and cladding are in the periphery of boiler core, the inside of outer boiler body is located to the heating pipe, inhalant canal locates on the outer boiler body, exhalant canal locates in the boiler core, the heating runner including locate along the annular runner that boiler core periphery wall set up and be equipped with the transition runner of boiler core top surface, annular runner's initial end with inhalant canal intercommunication, annular runner's terminal end with the import intercommunication of transition runner, the export of transition runner again with the import intercommunication of exhalant canal, annular runner is gone upward the runner by a plurality of mutual intercommunications again and is constituteed with down the runner, is equipped with a down runner between the adjacent two runners, is equipped with an upward runner between the adjacent two runners.

As a preferred scheme of the annular flow channel, a plurality of short ribs and long ribs which are radially raised and are axially arranged are arranged on the peripheral wall of the boiler core, concave recesses which are arranged at intervals along the circumference are formed in the bottom surface of the boiler core, a long rib is arranged between every two adjacent short ribs, a short rib is arranged between every two adjacent long ribs, the recesses are arranged between every two adjacent short ribs, a first interval is formed between the top surface of each short rib and the top surface of the boiler core, the top surface of each long rib is flush with the top surface of the boiler core, the bottom surface of each long rib is in contact with the bottom surface of the corresponding recess, a second interval is formed between the outer end surface of each long rib and the side wall of the corresponding recess, a downlink flow channel is formed between each long rib and the short rib on one adjacent side, an uplink flow channel is formed between each long rib and the short rib on the other adjacent side, and the tops of the uplink flow channel are communicated with the tops of the downlink flow channels through the second intervals, and the bottoms of the ascending flow channel and the descending flow channel are communicated through the second interval. The upward flow channel and the downward flow channel are formed in the annular space between the outer peripheral wall of the boiler core and the outer boiler body through the ribs, the sum of the total strokes of the upward flow channel and the downward flow channel can be maximized,

preferably, the transition flow path has a spiral shape. The helical transition flow path can lengthen the flow path.

The boiler is characterized in that the outer boiler body is formed by fixedly connecting an upper boiler body and a lower boiler body in an involutory mode, an annular pressing edge is arranged at the bottom of the boiler core and is pressed between the upper boiler body and the lower boiler body, the water inlet channel and the heating pipe are arranged in the upper boiler body, and the boiler core is located in an inner cavity of the upper boiler body. The valve body of the outer boiler body structure is convenient to assemble and process parts.

The improved boiler is characterized in that a check valve component is arranged in the water outlet channel, the check valve component comprises a valve casing which is arranged in the water outlet channel and can slide axially, a valve casing spring which enables the valve casing to keep moving upwards is arranged in the water outlet channel, a valve port is arranged in the channel of the valve casing, a valve core which enables the valve casing to keep moving upwards and close the valve port trend is further arranged in the channel of the valve casing and supported by the valve core spring, a sealing sheet made of flexible materials is further arranged in the lower boiler body, the periphery of the sealing sheet is pressed between the pressing edge and the lower boiler body, the center of the sealing sheet is sleeved and fixed on the valve casing, a pressing plate is further fixed on the valve casing, a through hole for the pressing plate to pass through is formed in the lower boiler body, and the pressing plate is located below the sealing sheet and can move up and down along with the valve casing to completely pass through the through hole. This structural design makes outside the function of this boiler structure local heating water, still have and push away a packet and press a packet function, under the normal condition, the valve port is plugged up to the case, rivers can not discharge, the pressure in the delivery channel can act on valve casing and gasket, the elasticity axial that makes the valve casing overcome the valve casing spring moves down, the middle part of clamp plate and gasket also moves down thereupon, the gasket can warp, the effect of gasket is exactly to prevent water from the top, discharge between the lower boiler body, ensure that water can only discharge from the valve port, the moving down of clamp plate plays the effect of the tight coffee package in beverage goes out equipment, the coffee machine that adopts this boiler can simplify inner structure greatly (can save the piston structure in the original coffee machine), make the coffee machine whole miniaturization, how to make the coffee machine miniaturization, be one of the important technical problem that technical staff in the field need solve.

The valve casing comprises a body, a spring seat and a pressing block, wherein the valve port is arranged in the body, the spring seat is in threaded connection with the upper portion of the body, and the pressing block is in threaded connection with the lower portion of the body and presses the sealing sheet and the pressing plate onto the body. The valve shell structure is convenient to assemble.

The water inlet joint is connected in the water inlet channel on the upper boiler body, and the top surface of the upper boiler body is fixed with the temperature controller.

As an improvement, the boiler body is arranged in a shell, the shell is exposed from the wiring ends of the water inlet connector, the pressing plate and the heating pipe, and the temperature controller is hidden in the shell. The shell plays a protective role in each part, so that the boiler is more attractive as an integral accessory.

Compared with the prior art, the invention has the advantages that: the heating runner includes annular flow channel, and the transition runner, annular flow channel is gone upward the runner by a plurality of mutual intercommunications again and is constituteed with down the runner, make the whole heating route greatly increased of rivers, and rivers are at the flow in-process, there is down process to have the process of going upward again, it is slow to ensure that rivers pass through whole heating route, increase the heat time, annular flow channel simultaneously, and the transition runner directly sets up between outer boiler body and boiler core, it is the direct heating, further ensure boiler heating efficiency, the boiler can reach rapid heating (instant heating type).

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is a sectional view taken along line B-B of FIG. 2;

FIG. 5 is an exploded perspective view of an embodiment of the present invention;

FIG. 6 is a schematic perspective view of a boiler core according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 6, a preferred embodiment of the present invention is shown.

The utility model provides a boiler for beverage extraction equipment, is including the boiler body that has inhalant canal 2a and exhalant canal 2b, and the boiler body embeds has heating pipe 4, and heating pipe 4 generally adopts electric heating pipe, and the both ends of heating pipe 4 stretch out the boiler body and form the wiring end, and this internal heating runner that still is equipped with of pot.

Boiler body includes outer boiler body 1 and boiler core 3, and outer boiler body 1 and boiler core 3 are the aluminium die casting, and outer boiler body 1 and cladding are in the periphery of boiler core 3, and outer boiler body 1 is closed fixed connection by last boiler body 11 and lower boiler body 12 and forms, the bottom of boiler core 3 has and is annular blank pressing 34, and this blank pressing 34 is suppressed at last boiler body 11 and between boiler body 12 down, and is equipped with sealing washer 35 between blank pressing 34 and the last boiler body 11 and seal, and in water intake passage 2a and heating pipe 4 located boiler body 11, boiler core 3 was located in the inner chamber of last boiler body 11. The water outlet channel 2b is arranged in the boiler core 3, and the water outlet channel 2b is a stepped hole which axially penetrates through the center of the boiler core 3.

The first main improvement point of the invention is that: the heating flow channel comprises an annular flow channel 5 arranged along the peripheral wall of the boiler core 3 and a transition flow channel 6 arranged on the top surface of the boiler core 3, and the transition flow channel 6 is in a spiral shape. The initial end of the annular flow passage 5 is communicated with the water inlet channel 2a, the terminal end of the annular flow passage 5 is communicated with the inlet 61 of the transition flow passage 6, and the outlet 62 of the transition flow passage 6 is communicated with the inlet of the water outlet channel 2b, so that the water flowing from the water inlet channel 2a can enter the water outlet channel 2b only after passing through the annular flow passage 5 and the transition flow passage 6. The annular flow passage 5 is composed of a plurality of mutually communicated ascending flow passages 51 and descending flow passages 52, a descending flow passage 52 is arranged between two adjacent ascending flow passages 51, and an ascending flow passage 51 is arranged between two adjacent descending flow passages 52.

The specific structural form of the annular flow passage 5 is as follows: as shown in fig. 6, a plurality of short ribs 31 and long ribs 32 protruding radially and arranged axially are provided on the outer peripheral wall of the boiler core 3, the bottom surface of the boiler core 3 has concave recesses 33 arranged at intervals along the circumference, a long rib 32 is provided between two adjacent short ribs 31, a short rib 31 is provided between two adjacent long ribs 32, the recess 33 is provided between two adjacent short ribs 31, a first space 3a is provided between the top surface of the short rib 31 and the top surface of the boiler core 3, the top surface of the long rib 32 is flush with the top surface of the boiler core 3, the bottom surface of the long rib 32 is in contact with the bottom surface of the recess 33, a second space 3b is provided between the outer end surface of the long rib 32 and the side wall of the recess 33, a down flow channel 52 is formed between the long rib 32 and the short rib 31 on one side adjacent thereto, an up flow channel 52 is formed between the long rib 32 and the short rib 31 on the other side adjacent thereto, the top of the up flow channel 51 and the down flow channel 52 are communicated through the first space 3a, the bottoms of the ascending flow path 51 and the descending flow path 52 communicate with each other through the second pitch 3 b.

The second main improvement point of the invention is that: a one-way valve component is arranged in the water outlet channel 2b, the one-way valve component comprises a valve casing 7 which is arranged in the water outlet channel 2b and can slide axially, a valve casing spring 7a which enables the valve casing 7 to keep moving upwards is arranged in the water outlet channel 2b, a valve opening 7b is arranged in the channel of the valve casing 7, a valve core 8 which is supported by the valve core spring 8a and enables the valve core spring to keep moving upwards to block the valve opening 7b, a sealing sheet 9 made of flexible material is further arranged in the lower boiler body 12, the periphery of the sealing sheet 9 is pressed between the pressing edge 34 and the lower boiler body 12, the center of the sealing sheet 9 is sleeved and fixed on the valve casing 7, a pressing plate 9 is further fixed on the valve casing 7, a through hole 121 for the pressing plate 10 to pass through is formed in the lower boiler body 12, and the pressing plate 9 is positioned below the sealing sheet 8 and can move up and down along with the valve casing 7 and completely penetrates through the through hole 121.

The structural design ensures that the boiler structure has the function of locally heating water and has the function of pushing and pressing the coffee bag, under the normal state, the valve core 8 blocks the valve port 7b, water flow can not be discharged, the pressure in the water outlet channel 2b can act on the valve shell 7 and the sealing sheet 9, the valve shell 7 overcomes the elastic force of the valve shell spring 7a and moves downwards axially, the middle parts of the pressure plate 10 and the sealing sheet 9 move downwards along with the valve port, the sealing sheet 9 can deform, the sealing sheet 9 has the function of preventing water from being discharged from the upper boiler body 11 and the lower boiler body 12, ensuring that the water can be discharged from the valve port 7b only, the downward movement of the pressure plate 10 plays the role of pressing the coffee bag in the beverage outlet device, only when the pressure reaches a certain value, the coffee machine adopting the boiler can be opened by adopting the valve core 7, the internal structure can be greatly simplified (the piston structure in the original coffee machine can be saved), the whole coffee machine is miniaturized, and how the coffee machine is miniaturized, is one of the important technical problems that the skilled person needs to solve.

The valve housing 7 includes a body 71, a spring seat 72, and a pressing block 73, the valve port 7b is provided in the body 71, the spring seat 72 is screwed to the upper portion of the body 7, and the pressing block 73 is screwed to the lower portion of the body 7 and presses the sealing sheet 9 and the pressing plate 10 against the body 71.

The water inlet channel 2a on the upper boiler body 12 is internally connected with a water inlet joint 13, and the top surface of the upper boiler body 12 is fixed with a temperature controller 14. The boiler body 1 is arranged in a shell 15, the shell 15 is exposed from the water inlet joint 13, the pressing plate 10 and the wiring end of the heating pipe 4, and the temperature controller 14 is hidden in the shell 15.

The heating runner includes annular runner 5, and the transition runner, the annular runner comprises a plurality of intercommunication upward runner 51 and down runner 52 again, make the whole heating path greatly increased of rivers, and rivers are at the flow in-process, there is the process of going upward again to the process of going down, ensure that rivers are slow through whole heating path, increase heating time, annular runner simultaneously, and the transition runner directly sets up between outer boiler body and boiler core, it is the direct heating, further ensure boiler heating efficiency, the boiler can reach rapid heating (instant heating type).

Although preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A boiler for beverage extraction equipment comprises a boiler body with a water inlet channel (2a) and a water outlet channel (2b), wherein a heating pipe (4) is arranged in the boiler body, and a heating flow channel is also arranged in the boiler body; the method is characterized in that: the boiler body comprises an outer boiler body (1) and a boiler core (3), the outer boiler body (1) is wrapped at the periphery of the boiler core (3), the heating pipe (2) is arranged in the outer boiler body (1), a water inlet channel (2a) is arranged on the outer boiler body (1), a water outlet channel (2b) is arranged in the boiler core (3), the heating channel comprises an annular channel (5) arranged along the peripheral wall of the boiler core (3) and a transition channel (6) arranged on the top surface of the boiler core (3), the initial end of the annular channel (5) is communicated with the water inlet channel (2a), the terminal end of the annular channel (5) is communicated with an inlet (61) of the transition channel (6), an outlet (62) of the transition channel (6) is communicated with an inlet of the water outlet channel (2b), and the annular channel (5) is also communicated with an uplink channel (51) and a downlink channel (52), a downlink flow channel (52) is arranged between two adjacent uplink flow channels (51), and an uplink flow channel (51) is arranged between two adjacent downlink flow channels (52);

the boiler comprises a boiler core (3), wherein the peripheral wall of the boiler core (3) is provided with a plurality of short ribs (31) and long ribs (32) which are radially raised and axially arranged, the bottom surface of the boiler core (3) is provided with concave parts (33) which are arranged at intervals along the circumference, one long rib (32) is arranged between every two adjacent short ribs (31), one short rib (31) is arranged between every two adjacent long ribs (32), the concave part (33) is arranged between every two adjacent short ribs (31), a first interval (3a) is arranged between the top surface of each short rib (31) and the top surface of the boiler core (3), the top surface of each long rib (32) is flush with the top surface of the boiler core (3), the bottom surface of each long rib (32) is in contact with the bottom surface of the concave part (33), a second interval (3b) is arranged between the outer end surface of each long rib (32) and the side wall of the concave part (33), and a descending flow passage (52) is formed between each long rib (32) and the short rib (31) on one adjacent side, an ascending flow channel (52) is formed between the long ribs (32) and the short ribs (31) on the other adjacent side, the tops of the ascending flow channel (51) and the descending flow channel (52) are communicated through a first interval (3a), and the bottoms of the ascending flow channel (51) and the descending flow channel (52) are communicated through a second interval (3 b).

2. The boiler for beverage extraction apparatus according to claim 1, wherein: the transition flow channel (6) is spiral.

3. The boiler for beverage extraction equipment according to any one of claims 1 to 2, wherein: outer boiler body (1) closes fixed connection by last boiler body (11) and lower boiler body (12) and forms, the bottom of boiler core (3) has and is annular blank pressing (34), and this blank pressing (34) are suppressed between last boiler body (11) and lower boiler body (12), inhalant canal (2a) and heating pipe (4) are located in last boiler body (11), boiler core (3) are located in the inner chamber of last boiler body (11).

4. A boiler for a beverage extraction apparatus according to claim 3, wherein: a one-way valve component is arranged in the water outlet channel (2b), the one-way valve component comprises a valve casing (7) which is arranged in the water outlet channel (2b) and can slide axially, a valve casing spring (7a) which enables the valve casing (7) to keep the trend of moving upwards is arranged in the water outlet channel (2b), a valve port (7b) is arranged in the channel of the valve casing (7), a valve core (8) which is supported by the valve core spring (8a) and enables the valve core spring to keep the trend of moving upwards and plugging the valve port (7b) is also arranged in the channel of the valve casing (7), a sealing sheet (9) made of flexible material is also arranged in the lower boiler body (12), the periphery of the sealing sheet (9) is pressed between the pressing edge (34) and the lower boiler body (12), the center of the sealing sheet (9) is sleeved and fixed on the valve casing (7), a pressing plate (9) is also fixed on the valve casing (7), a through hole (121) for the pressing plate (10) to pass through is arranged on the lower boiler body (12), the pressing plate (9) is positioned below the sealing sheet (8) and can move up and down along with the valve shell (7) to completely penetrate through the through hole (121).

5. The boiler for a beverage extraction apparatus according to claim 4, wherein: the valve shell (7) comprises a body (71), a spring seat (72) and a pressing block (73), the valve port (7b) is arranged in the body (71), the spring seat (72) is in threaded connection with the upper portion of the body (7), and the pressing block (73) is in threaded connection with the lower portion of the body (7) and presses the sealing sheet (9) and the pressing plate (10) onto the body (71).

6. The boiler for beverage extraction apparatus according to claim 4, wherein: a water inlet joint (13) is connected in the water inlet channel (2a) on the upper boiler body (12), and a temperature controller (14) is fixed on the top surface of the upper boiler body (12).

7. The boiler for beverage extraction apparatus according to claim 6, wherein: the boiler body (1) is arranged in a shell (15), the shell (15) is exposed from the wiring ends of the water inlet joint (13), the pressing plate (10) and the heating pipe (4), and the temperature controller (14) is hidden in the shell (15).