CN114176403A - Beverage foaming device and beverage machine - Google Patents

Beverage foaming device and beverage machine Download PDF

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Publication number
CN114176403A
CN114176403A CN202111637194.2A CN202111637194A CN114176403A CN 114176403 A CN114176403 A CN 114176403A CN 202111637194 A CN202111637194 A CN 202111637194A CN 114176403 A CN114176403 A CN 114176403A
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China
Prior art keywords
beverage
cavity
chamber
inlet
buffer
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CN202111637194.2A
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CN114176403B (en
Inventor
吴龙涛
张国际
赵胜
杨序贵
吴道玉
田志峰
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Guangzhou Jetinno Intelligent Equipment Co ltd
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Guangzhou Jetinno Intelligent Equipment Co ltd
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/4403—Constructional details
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/54—Water boiling vessels in beverage making machines
    • A47J31/56—Water boiling vessels in beverage making machines having water-level controls; having temperature controls

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

The present disclosure relates to a beverage foaming device and a beverage machine, the device comprises a shell and an inner rod; a beverage inlet is formed at one end of the shell, a beverage outlet is formed at the other end of the shell, an inlet channel, a first jet orifice, a mixing cavity, a contraction cavity, a throat cavity, a diffusion cavity and a buffer cavity are formed in the shell, the beverage inlet is communicated with the inlet channel, the beverage outlet is communicated with the buffer cavity, a heating gas channel is also formed in the shell, and the heating gas channel is communicated with the mixing cavity; the inner diameter of the contraction cavity is gradually reduced along the beverage flowing direction, and the inner diameter of the diffusion cavity is gradually increased along the beverage flowing direction; the inner rod is arranged in the buffer cavity, and a gap is reserved between the inner rod and the inner side wall of the buffer cavity. The beverage machine comprises the beverage foaming device. The foaming beverage foaming machine has the advantages of simple structure, low manufacturing cost, difficulty in coagulation and blockage inside, convenience in cleaning, maintenance and overhaul, long service life, low fault rate, large temperature and fluidity adjusting range, soft and uniform prepared foaming beverage and good user experience.

Description

Beverage foaming device and beverage machine
Technical Field
The utility model relates to a beverage machine equipment technical field, concretely relates to beverage foaming device and beverage machine.
Background
At present, some beverage machines such as coffee machines are provided with a foaming device, for example, a full-automatic coffee machine capable of making milk foam is provided, and the foaming device of the full-automatic coffee machine generally adopts an electromagnetic foaming device for foaming and then heats the milk foam through a steam or electric heating device. The foaming device has the defects of complex structure, high manufacturing cost, easy milk scale condensation inside, easy blockage, difficult cleaning, difficult maintenance and repair, short service life of parts, high failure rate and small temperature and fluidity adjusting range. Meanwhile, the problems that milk foam is not fine and dense enough and is more in large foam after the milk is poured into a cup exist.
Disclosure of Invention
In order to solve the problems of the prior art, an object of the present disclosure is to provide a beverage frothing device, and another object is to provide a beverage machine. The foaming beverage foaming machine has the advantages of simple structure, low manufacturing cost, difficulty in coagulation and blockage inside, convenience in cleaning, maintenance and overhaul, long service life, low fault rate, large temperature and fluidity adjusting range, soft and uniform prepared foaming beverage and good user experience.
The beverage foaming device comprises a shell and an inner rod; a beverage inlet is formed at one end of the shell, a beverage outlet is formed at the other end of the shell, an inlet channel, a first jet orifice, a mixing cavity, a contraction cavity, a throat cavity, a diffusion cavity and a buffer cavity which are sequentially communicated are formed in the shell along the flowing direction of the beverage, the beverage inlet is communicated with the inlet channel, the beverage outlet is communicated with the buffer cavity, a heating gas channel and a heating gas inlet communicated with the heating gas channel are also formed in the shell at the side of the mixing cavity, and the heating gas channel is communicated with the mixing cavity through a second jet orifice;
the inner diameter of the contraction cavity is gradually reduced along the flowing direction of the beverage, and the inner diameter of the diffusion cavity is gradually increased along the flowing direction of the beverage, so that the beverage is foamed after sequentially flowing through the contraction cavity, the throat cavity and the diffusion cavity;
the inner rod is arranged in the buffer cavity, and a gap is reserved between the inner rod and the inner side wall of the buffer cavity, so that the beverage is further foamed when flowing through the buffer cavity.
Preferably, the inner rod comprises a plurality of sections of wafers which are sequentially connected along the length direction of the inner rod, and at least one side surface of each wafer is sunken towards the direction of the circle center to form a notch, so that a gap is reserved between the inner rod and the inner side wall of the buffer cavity.
Preferably, three notches are formed in each section of the wafer, the three notches are arranged around the circle center of the wafer at equal intervals, and the notches of the adjacent two sections of the wafer are arranged in a staggered mode.
Preferably, the notch is fan-shaped, and the radian of the notch ranges from 120 degrees to 125 degrees.
Preferably, the inner diameters of the inlet passage, the first jet port, the mixing chamber, the contraction chamber, the throat chamber, the diffusion chamber, the buffer chamber and the second jet port are respectively D1、D2、D3、D4、D5、D6、D7And D8And satisfies the following conditions:
D2：D1＝1:4～4.2；
D2：D3＝1:8～8.2；
D2：D8＝1:1.5～1.6。
preferably, it also satisfies:
D4max＝D3，D4min<D5，D6min＝D5，
D6max：D7＝8:3.5～3.6。
preferably, the housing is in the retraction cavity anda reducing cavity is formed between the throat cavities, and the inner diameter of the reducing cavity is D9The reducing cavity extends along the flowing direction of the beverage and satisfies the following conditions:
D4min≤D9<D5。
preferably, the taper of the contraction cavity is 70-75 degrees; the taper of the diffusion cavity is 40-45 degrees, and the included angle formed by the inlet channel and the extension direction of the heating gas channel is 60-65 degrees.
Preferably, the housing comprises a spray head, a first shell and a second shell which are detachably connected, and the beverage inlet and the inlet channel are formed in the spray head; the first jet orifice, the mixing chamber, the converging chamber, the throat chamber, the diverging chamber, the heated gas inlet, the heated gas passage, and the second jet orifice are all formed within the first housing; the buffer chamber is formed in the second housing.
Beverage maker for making a frothed beverage, comprising a beverage frothing device as described above.
The beverage foaming device and the beverage machine have the advantages that the beverage is introduced from the beverage inlet by arranging the inlet channel, the first jet orifice, the mixing cavity, the contraction cavity, the throat cavity, the diffusion cavity, the buffer cavity, the heating gas channel, the inner rod and the like, then the beverage flows out from the first injection port with small diameter, the flow of the beverage is reduced, the flow rate is increased, the beverage enters into the mixing cavity, the beverage flowing in at high speed forms negative pressure in the mixing cavity, at the moment, the gas is heated, if high-temperature steam is introduced from the heating gas inlet, the heating gas flows through the heating gas channel and enters the mixing cavity to be mixed with the beverage in the mixing cavity, because of the large pressure difference between the negative pressure environment in the mixing cavity and the internal pressure of the high-temperature steam, the high-temperature steam can be dissolved in the beverage to the maximum extent, and the beverage is heated to be rapidly heated to the required temperature. The beverage mixed and heated with the high-temperature steam flows into the shrinkage cavity from the mixing cavity, the flow speed of the beverage in the shrinkage cavity is gradually increased due to the inner diameter structure of the shrinkage cavity, then the beverage flows into the throat cavity with smaller inner diameter to form strong turbulence, the turbulence can shear large bubbles in the beverage into a plurality of fine bubbles, the fine bubbles are mixed at the rear section of the throat cavity and then flow into the diffusion cavity, due to the structure that the inner diameter of the diffusion cavity is gradually increased, the flow speed of the beverage in the diffusion cavity is gradually reduced, the internal pressure of the beverage is gradually increased according to the Bernoulli equation, so that the bubbles are further torn into finer bubbles, then the beverage continuously flows into the buffer cavity, flows through a gap between the inner side wall of the buffer cavity and the inner rod, is extruded by the inner side wall of the buffer cavity and the inner rod, further tears and uniformly mixes bubbles in the beverage, and finally forms a dense and uniform foamed beverage to flow out from the beverage outlet.
The beverage is heated and foamed by adopting a mode of mixing with high-temperature gas, an electromagnetic foaming device and a heating device are not required to be arranged respectively, the part structure can be effectively simplified, the number of parts can be reduced, and the part cost can be reduced. And each cavity is approximate to a long and straight cavity, so that the beverage flows smoothly in the cavity, is not easy to condense and block, and is convenient to clean, maintain and overhaul. The parts have simple structure and stable connection, and have the advantages of long service life and low failure rate. The temperature of the foaming beverage can be adjusted by controlling the temperature of the introduced heating gas, and the fluidity of the finally formed foaming beverage can be adjusted by controlling the amount of the introduced beverage and the amount of the heating gas, so that the adjustment range of the temperature and the fluidity is wide. In the foaming process of the beverage, internal bubbles are cut and torn through the multiple layers, and finally the internal bubbles and the buffer cavity are further extruded and torn, so that the prepared foaming beverage is guaranteed to have thick mouthfeel and uniform bubbles, and the use experience of a user is promoted and improved.
Drawings
FIG. 1 is a schematic view of a beverage frothing apparatus according to the present disclosure;
FIG. 2 is a cross-sectional view of a beverage frothing apparatus according to the present disclosure;
FIG. 3 is a schematic view of the inner rod of the present disclosure;
fig. 4 is a cross-sectional view of an inner rod according to the present disclosure.
Description of reference numerals: 1-housing, 1 a-nozzle, 1 b-first housing, 1 c-second housing, 101-beverage inlet, 102-beverage outlet, 103-inlet channel, 104-first jet orifice, 105-mixing chamber, 106-contraction chamber, 107-throat chamber, 108-diffusion chamber, 109-buffer chamber, 110-heated gas channel, 111-heated gas inlet, 112-second jet orifice, 2-inner rod, 21-wafer, 211-notch.
Detailed Description
As shown in fig. 1-4, the beverage foaming device of the present disclosure comprises an outer shell 1 and an inner rod 2. The housing 1 is approximately in the shape of an elongated bar, the interior of which is hollow and forms a plurality of chambers for the passage of the beverage, and one end of the housing 1 forms a beverage inlet 101, where it is normally in communication with a beverage delivery duct of the beverage machine for feeding the beverage to this beverage inlet 101. The other end of the housing 1 is formed with a beverage outlet 102, the beverage outlet 102 being normally in communication with a beverage outlet nozzle of the beverage maker for facilitating the flow of the brewed beverage out of the beverage outlet nozzle.
An inlet channel 103, a first injection port 104, a mixing cavity 105, a contraction cavity 106, a throat cavity 107, a diffusion cavity 108 and a buffer cavity 109 which are sequentially communicated are formed in the shell 1 along the flowing direction of the beverage, specifically, the inlet channel 103 is a slender round hole-shaped channel, one end of the inlet channel is communicated with the beverage inlet 101, the other end of the inlet channel is communicated with the first injection port 104, and the inner diameter of the first injection port 104 is suddenly reduced compared with the inlet channel 103, so that when the beverage flows to the position of the first injection port 104, the flow is reduced, and the flow speed is increased.
A mixing chamber 105, the mixing chamber 105 being a cylindrical cavity for mixing the beverage and the heated gas therein.
A converging cavity 106, the converging cavity 106 being funnel-shaped with an inner diameter that decreases in the direction of beverage flow, so that the flow rate of the beverage flowing from the mixing chamber 105 is further increased when it flows through the converging cavity 106.
Throat cavity 107, throat cavity 107 is a long straight cylindrical cavity, and large bubbles in the beverage mixed with the heated gas are cut into fine bubbles by turbulence.
The diffusion cavity 108 is in an inverted funnel shape, and the inner diameter of the diffusion cavity 108 is gradually increased along the flowing direction of the beverage, so that the flow speed of the beverage is gradually reduced when the beverage flows through the diffusion cavity 108, the internal pressure of the liquid is released, and the bubbles are further torn into smaller bubbles.
The buffer cavity 109 is a long and straight cylindrical cavity 109, the inner diameter of which is slightly larger than the outer diameter of the inner rod 2, so that a gap is left between the inner rod 2 and the inner side wall of the buffer cavity 109 after the inner rod 2 is arranged in the buffer cavity 109, and when the beverage flows through the buffer cavity 109, the beverage is further foamed under the extrusion effect of the inner rod 2 and the inner wall of the buffer cavity 109.
The inside of the housing 1 is formed with a heated gas passage 110 beside the mixing chamber 105, the heated gas passage 110 is a long straight circular hole, and is also formed with a heated gas inlet 111 communicated with the heated gas passage 110, the heated gas passage 110 is communicated with the mixing chamber 105 through a second jet 112, the inner diameter of the second jet 112 is suddenly contracted compared with the heated gas passage 110, so that the heated gas flows through the second jet 112 to form a high-speed gas flow entering the mixing chamber 105, and the heated gas and the beverage are fully and uniformly mixed.
The operation of the beverage foaming device of this embodiment is as follows, the beverage is introduced from the beverage inlet 101, and then flows out from the first injection port 104 with small diameter, so that the flow rate of the beverage is reduced, the flow rate is increased, and the beverage enters the mixing chamber 105, the beverage flowing in at high speed forms negative pressure in the mixing chamber 105, at this time, the heating gas, such as high-temperature steam, is introduced from the heating gas inlet 111, the heating gas flows through the heating gas channel 110 and enters the mixing chamber 105 to be mixed with the beverage therein, because of the large pressure difference between the negative pressure environment in the mixing chamber 105 and the internal pressure of the high-temperature steam, the high-temperature steam can be dissolved in the beverage to the maximum extent, and the beverage is heated to the required temperature. The beverage mixed and heated with the high-temperature steam flows into the contraction cavity 106 from the mixing cavity 105, the flow speed of the beverage in the contraction cavity 106 is gradually increased due to the inner diameter structure of the contraction cavity 106, then the beverage flows into the throat cavity 107 with the smaller inner diameter to form strong turbulence, the turbulence can shear large bubbles in the beverage into a plurality of fine bubbles, the fine bubbles are mixed at the rear section position of the throat cavity 107, then the beverage flows into the diffusion cavity 108, the flow speed of the beverage in the diffusion cavity 108 is gradually reduced due to the structure that the inner diameter of the diffusion cavity 108 is gradually increased, the internal pressure of the beverage is gradually increased according to the Bernoulli equation, so that the bubbles are further torn into the fine bubbles, then the beverage continuously flows into the buffer cavity 109, flows through a gap between the inner side wall of the buffer cavity 109 and the inner rod 2, and is extruded by the inner side wall of the buffer cavity 109 and the inner rod 2, so that the bubbles in the beverage are further torn and uniformly mixed, eventually forming a dense and uniform frothed beverage that exits through the beverage outlet 102.
The beverage is heated and foamed by adopting a mode of mixing with high-temperature gas, an electromagnetic foaming device and a heating device are not required to be arranged respectively, the part structure can be effectively simplified, the number of parts can be reduced, and the part cost can be reduced. And each cavity is approximate to a long and straight cavity, so that the beverage flows smoothly in the cavity, is not easy to condense and block, and is convenient to clean, maintain and overhaul. The parts have simple structure and stable connection, and have the advantages of long service life and low failure rate. The temperature of the foaming beverage can be adjusted by controlling the temperature of the introduced heating gas, and the fluidity of the finally formed foaming beverage can be adjusted by controlling the amount of the introduced beverage and the amount of the heating gas, so that the adjustment range of the temperature and the fluidity is wide. In the foaming process of the beverage, internal bubbles are cut and torn through multiple layers, and finally the internal bubbles and the buffer cavity 109 are further extruded and torn through the internal rod 2, so that the prepared foaming beverage is guaranteed to have thick mouthfeel and uniform bubbles, and the use experience of a user is promoted and improved.
Further, in the embodiment, please refer to fig. 3 and 4 in detail, the inner rod 2 is a multi-section long rod, the inner rod 2 specifically includes a plurality of sections of discs 21 sequentially connected along the length direction thereof, the discs 21 are disc-shaped structures with a certain thickness, a portion of each disc 21 is provided with a slight protrusion so as to be connected with the next disc 21, the inner rod 2 may be an integral structure or a spliced structure formed by welding a plurality of discs 21, at least one side surface of each disc 21 is recessed towards the center of the circle to form a notch 211, so that a gap is left between the inner rod 2 and the inner side wall of the buffer cavity 109. When the beverage flows through the buffer cavity 109, the beverage can flow through the notch 211 of the inner rod 2, and the bubbles in the beverage are fully extruded through the inner wall of the notch 211 and the inner side wall of the buffer cavity 109, so that the bubbles are further sheared and torn, and the prepared foaming beverage has a thick and uniform taste.
Further, in this embodiment, each wafer 21 is formed with three notches 211, the three notches 211 are disposed around the center of the wafer 21 at equal intervals, and the notches 211 of two adjacent segments of the wafer 21 are disposed in a staggered manner, the inner rod 2 structure can enable the beverage to collide with the wafer 21 at the next segment of the wafer 21 when flowing through the notch 211 of the previous segment of the wafer 21 in the buffer chamber 109, change the flow direction to flow laterally, change the flow direction twice after colliding with the inner side wall of the buffer chamber 109, and then flow to the notch 211 of the third segment of the wafer 21, and in the process of flowing the beverage in the buffer chamber 109, the above process is repeated many times, so that the beverage is fully collided and squeezed in the buffer chamber 109. The large bubbles are sufficiently torn, so that the small and uniform bubbles in the finally formed foaming beverage can be ensured, and the foaming beverage has a thick and uniform mouthfeel.
Furthermore, in this embodiment, the notch 211 is fan-shaped, and the radian thereof is 120 ° to 125 °, so that the notch 211 has a good foaming effect on the beverage, and is convenient to process.
The inner diameter of each chamber has a key influence on the foaming effect of the beverage, and the problems of compact overall structure and small volume of the device are also considered, and through practical verification, the applicant designs the dimensions of each chamber as follows:
the inner diameters of the inlet passage 103, the first jet port 104, the mixing chamber 105, the contraction chamber 106, the throat chamber 107, the diffusion chamber 108, the buffer chamber 109, and the second jet port 112 are respectively D1、D2、D3、D4、D5、D6、D7And D8And satisfies the following conditions:
D2：D1＝1:4～4.2；
D2：D3＝1:8～8.2；
D2：D8＝1:1.5～1.6；
taking the inner diameter of the first injection port 104 as 1cm as an example, the inner diameter of the inlet passage 103 should be 4cm, the inner diameter of the mixing chamber 105 should be 8cm, and the inner diameter of the second injection port 112 should be 1.5cm, and the above-mentioned dimensions are designed so that when the beverage and the heated gas enter the mixing chamber 105 through the first injection port 104 and the second injection port 112, respectively, the flow rate and pressure of the beverage and the heated gas are appropriate, which is favorable for the sufficient mixing of the beverage and the heated gas, so as to heat the beverage uniformly.
Further, in this embodiment, the inner diameter of each chamber further satisfies:
D4max＝D3，D4min<D5，D6min＝D5，
D6max：D7＝8:3.5～3.6。
still taking the example of the inner diameter of the first injection port 104 being 1cm, the maximum inner diameter of the contraction cavity 106 should be 8cm, the minimum inner diameter should be smaller than the inner diameter of the throat cavity 107, the inner diameter of the throat cavity 107 should be 4cm, the minimum inner diameter of the diffusion cavity 108 should be equal to the inner diameter of the throat cavity 107, and the ratio of the maximum inner diameter to the inner diameter of the buffer cavity 109 is about 8: 3.5. The size can lead the beverage mixed heating gas to be subjected to multiple times of shearing and tearing when flowing through the contraction cavity 106, the throat cavity 107 and the mixing cavity 105, lead large bubbles to be fully torn into small bubbles, improve the mouthfeel of the formed foaming beverage, and have reasonable size, compact structure and small device volume.
Further, in this embodiment, the housing 1 is formed with a reducing cavity between the contracting cavity 106 and the throat cavity 107, and the inner diameter of the reducing cavity is D9The reducing cavity extends along the flowing direction of the beverage and meets the following conditions:
D4min≤D9<D5；
specifically, a reducing boss is formed between the contraction cavity 106 and the throat cavity 107 of the shell 1, so that the inner diameter of a communication channel between the two cavities is changed, and the reducing cavity has the function of inhibiting the beverage entering the throat cavity 107 from flowing back to the mixing cavity 105, so that the negative pressure environment of the mixing cavity 105 is prevented from being influenced.
Further, in this embodiment, the taper of the contraction cavity 106 is 70 ° to 75 °; the taper of the diffusion cavity 108 is 40-45 degrees, the included angle formed by the extension directions of the inlet channel 103 and the heating gas channel 110 is 60-65 degrees, the angle structure is reasonable in design, so that the beverage can smoothly flow in the shell 1, the beverage can be fully foamed, and the heating gas and the beverage can be fully and uniformly mixed.
Further, in the present embodiment, the housing 1 includes a spray head 1a, a first housing 1b and a second housing 1c which are detachably connected, and the beverage inlet 101 and the inlet passage 103 are formed inside the spray head 1 a; the first injection port 104, the mixing chamber 105, the contraction chamber 106, the throat chamber 107, the diffusion chamber 108, the heated gas inlet 111, the heated gas passage 110, and the second injection port 112 are formed in the first housing 1 b; the buffer chamber 109 is formed in the second casing 1c, and specifically, the shower nozzle 1a is screwed on the upper end of the first casing 1b through the internal and external threads, and the first casing 1b is screwed on the upper end of the second casing 1c through the internal and external threads, so that the casing 1 is integrally of a three-section detachable structure, which is convenient for assembly of the beverage foaming device and overhaul and disassembly in later use. In some specific embodiments, a rubber sealing ring may be provided at the connection position of the components to ensure airtightness at the connection position.
The embodiment also provides a beverage machine for making foaming beverage, such as a full-automatic coffee machine capable of making milk foam, and other structures of the beverage machine depend on the specific type of the beverage machine, and the embodiment does not limit the beverage machine. The beverage maker of this embodiment further comprises a beverage frothing device as described above for frothing the beverage. This beverage machine is owing to used foretell beverage foaming device, has simple structure, low in manufacturing cost, inside difficult the jam of condensing, be convenient for clearance and maintenance and repair, long service life, the fault rate is low, temperature and mobility control range are big, the foaming beverage of preparation is thick even, user experience is good advantage.
In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the present disclosure, and in the absence of a contrary explanation, these directional terms are not intended to indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present disclosure.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present disclosure.

Claims (10)

1. A beverage foaming device is characterized by comprising an outer shell and an inner rod; a beverage inlet is formed at one end of the shell, a beverage outlet is formed at the other end of the shell, an inlet channel, a first jet orifice, a mixing cavity, a contraction cavity, a throat cavity, a diffusion cavity and a buffer cavity which are sequentially communicated are formed in the shell along the flowing direction of the beverage, the beverage inlet is communicated with the inlet channel, the beverage outlet is communicated with the buffer cavity, a heating gas channel and a heating gas inlet communicated with the heating gas channel are also formed in the shell at the side of the mixing cavity, and the heating gas channel is communicated with the mixing cavity through a second jet orifice;
the inner diameter of the contraction cavity is gradually reduced along the flowing direction of the beverage, and the inner diameter of the diffusion cavity is gradually increased along the flowing direction of the beverage, so that the beverage is foamed after sequentially flowing through the contraction cavity, the throat cavity and the diffusion cavity;
the inner rod is arranged in the buffer cavity, and a gap is reserved between the inner rod and the inner side wall of the buffer cavity, so that the beverage is further foamed when flowing through the buffer cavity.
2. The beverage foaming device of claim 1, wherein the inner rod comprises a plurality of segments of discs sequentially connected along a length direction thereof, and at least one side surface of each segment of the disc is recessed toward a center of a circle to form a notch, so that a gap is left between the inner rod and an inner side wall of the buffer chamber.
3. The beverage foaming apparatus in accordance with claim 2 wherein each segment of the disk has three notches formed therein, the three notches being equally spaced around the center of the disk, and the notches of adjacent segments of the disk being staggered.
4. A beverage foaming apparatus according to claim 3 wherein the gap is fan-shaped and has an arc of from 120 ° to 125 °.
5. The beverage foaming apparatus in accordance with claim 1 wherein the inlet passage, the first jet, the mixing chamber, the converging chamber, the throat chamber, the diverging chamber, the buffer chamber and the second jet each have an inner diameter D1、D2、D3、D4、D5、D6、D7And D8And satisfies the following conditions:
D2：D1＝1:4～4.2；
D2：D3＝1:8～8.2；
D2：D8＝1:1.5～1.6。
6. the beverage frothing apparatus of claim 5, further satisfying:
D4max＝D3，D4min<D5，D6min＝D5，
D6max：D7＝8:3.5～3.6。
7. the beverage foaming apparatus in accordance with claim 6 wherein the housing defines a reducer chamber between the converging chamber and the throat chamber, the reducer chamber having an inner diameter D9The reducing cavity extends along the flowing direction of the beverage and satisfies the following conditions:
D4min≤D9<D5。
8. a beverage foaming apparatus according to claim 7 wherein the taper of the constricted chamber is between 70 ° and 75 °; the taper of the diffusion cavity is 40-45 degrees, and the included angle formed by the inlet channel and the extension direction of the heating gas channel is 60-65 degrees.
9. The beverage foaming apparatus in accordance with claim 1, wherein the housing comprises a spray head, a first housing and a second housing removably connected, the beverage inlet, the inlet passage each being formed within the spray head; the first jet orifice, the mixing chamber, the converging chamber, the throat chamber, the diverging chamber, the heated gas inlet, the heated gas passage, and the second jet orifice are all formed within the first housing; the buffer chamber is formed in the second housing.
10. Beverage maker for making a frothed beverage, characterized in that it comprises a beverage frothing device as claimed in any of the claims 1-9.
CN202111637194.2A 2021-12-29 2021-12-29 Beverage foaming device and beverage machine Active CN114176403B (en)

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CN114176403B CN114176403B (en) 2024-09-10

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CN109152496A (en) * 2016-05-19 2019-01-04 优瑞电器股份有限公司 The output device of milk frothing device
CN110974013A (en) * 2019-12-20 2020-04-10 苏州咖博士咖啡系统科技有限公司 Milk heating and whipping device
CN216962155U (en) * 2021-12-29 2022-07-15 广州技诺智能设备有限公司 Beverage foaming device and beverage machine

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CN108013764A (en) * 2018-01-30 2018-05-11 东保集团有限公司 The outlet device and its milk foam producing device of a kind of beverage dispenser
CN110974013A (en) * 2019-12-20 2020-04-10 苏州咖博士咖啡系统科技有限公司 Milk heating and whipping device
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