CN109588990B

CN109588990B - Beverage capsule

Info

Publication number: CN109588990B
Application number: CN201710918884.2A
Authority: CN
Inventors: 邝坚
Original assignee: Guangdong Midea Life Electric Manufacturing Co Ltd
Current assignee: Guangdong Midea Life Electric Manufacturing Co Ltd
Priority date: 2017-09-30
Filing date: 2017-09-30
Publication date: 2021-08-10
Anticipated expiration: 2037-09-30
Also published as: CN109588990A

Abstract

The invention relates to the field of household appliances, and discloses a beverage capsule which comprises a capsule body (1) with a capsule inner cavity (11), wherein a lower filter plate (2) is arranged at the bottom of the capsule inner cavity, a flow guide structure (5) is formed at the bottom of the lower filter plate, the flow guide structure extends downwards and is abutted to the bottom wall surface of the capsule inner cavity to form a flow guide flow channel (3), a bottom water outlet hole (12) is formed in the bottom wall surface of the capsule inner cavity, and filtered fluid of the lower filter plate flows together to the bottom water outlet hole through the flow guide flow channel. In the beverage capsule, the flow guide structure formed on the bottom surface of the lower filter sheet is abutted with the bottom wall surface of the inner cavity of the capsule to form the flow guide channel, so that the beverage filtered by the lower filter sheet can smoothly and uniformly converge to the bottom water outlet hole through the flow guide channel and smoothly and continuously flow out from the bottom water outlet hole, and the use experience of a user is improved.

Description

Beverage capsule

Technical Field

The invention belongs to the field of household appliances, and particularly relates to a beverage capsule.

Background

At present, capsule type beverage machines are more and more popular because they are more and more popular with consumers due to their features of simple operation, safety and sanitation, and guaranteed beverage quality. The beverage machine is loaded with beverage capsules, liquid with certain pressure is injected into the beverage capsules to brew beverages, and then the prepared beverages flow into the liquid containing cup body of a user from water outlet holes at the bottom of the beverage capsules.

In current beverage capsule, the drink that the brew formed filters the back through the lower cassette that is arranged in the capsule inner chamber, directly converges to beverage capsule's bottom apopore to concentrate through this bottom apopore and flow, like this, discontinuous, not smooth situation appear more easily in the drink that flows from this bottom apopore, influence user's use and experience.

Disclosure of Invention

In view of the above-mentioned deficiencies or drawbacks of the prior art, the present invention provides a beverage capsule, which enables a beverage to flow out from a bottom water outlet hole smoothly and continuously, and is beneficial to improving the user experience.

In order to achieve the above object, the present invention provides a beverage capsule comprising a capsule body having a capsule interior, the bottom of the inner cavity of the capsule is provided with a lower filter plate, the bottom of the lower filter plate is provided with a flow guide structure, the flow guide structure extends downwards and is abutted to the bottom wall surface of the inner cavity of the capsule to form a flow guide flow passage, a bottom water outlet hole is formed on the bottom wall surface of the inner cavity of the capsule, the filtered fluid of the lower filter plate is converged to the bottom water outlet hole through the flow guide flow passage, the top surface of the lower filter sheet is provided with a central bulge protruding upwards, the top surface of the lower filter sheet is an inclined ring surface extending outwards and downwards from the central bulge, the inclined ring surface is an annular filter surface surrounding the central bulge and densely distributing filter holes, the annular filter surface is a conical surface or an arc surface, and a smooth transition arc surface is formed between the annular filter surface and the central bulge.

Preferably, the flow guide structure and the lower filter sheet are integrally formed.

Preferably, the water conservancy diversion structure includes along a plurality of water conservancy diversion protruding circles of the radial outside interval arrangement of bottom apopore, the bottom of water conservancy diversion protruding circle is formed with along a plurality of drainage breachs of circumference interval distribution, the water conservancy diversion runner includes adjacently the annular drainage groove that forms between the water conservancy diversion protruding circle with the drainage breach.

Preferably, the number of turns of the diversion convex ring is not more than 4.

Preferably, the height of the guide convex ring is not less than 2mm and not more than 5 mm.

Preferably, the number of the drainage notches on the adjacent flow guide convex rings is the same and the drainage notches are arranged in a staggered manner along the circumferential direction.

Preferably, the number of the drainage notches on each of the flow guide convex rings is not less than 4 and not more than 8.

Preferably, the flow guide channel is a spiral flow guide channel spirally spiraling from the periphery of the bottom of the lower filter plate to the water outlet hole in the bottom.

Preferably, the diversion structure further comprises a diversion cover, the diversion cover comprises a central diversion column and a plurality of diversion ribs arranged along the circumferential direction at intervals, the central diversion column extends downwards into the bottom water outlet hole, and the diversion ribs are dispersed from the periphery of the central diversion column and extend to the inner end of the diversion flow channel.

Preferably, the filtering holes of the lower filtering sheet are strip-shaped holes, the width of each strip-shaped hole is not less than 0.2mm and not more than 0.5mm, and the length of each strip-shaped hole is not less than 0.2mm and not more than 0.5 mm; or the filtering holes of the lower filtering sheet are round holes, and the aperture of each round hole is not less than 0.2mm and not more than 0.5 mm.

Through the technical scheme, in the beverage capsule provided by the invention, the lower filter plate is arranged at the bottom of the inner cavity of the capsule, the flow guide structure is formed at the bottom of the lower filter plate, the flow guide structure extends downwards and is abutted to the bottom wall surface of the inner cavity of the capsule to form the flow guide flow channel, and the bottom water outlet hole is formed in the bottom wall surface of the inner cavity of the capsule, so that the beverage filtered by the lower filter plate can smoothly and uniformly converge to the bottom water outlet hole through the flow guide flow channel formed by the flow guide structure and continuously and smoothly flow out from the bottom water outlet hole, and the use experience of a user on the beverage capsule can be greatly improved.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a beverage capsule according to a first preferred embodiment of the present invention;

FIG. 2 is a schematic flow diagram of the injection fluid in the improved beverage capsule of the present invention;

FIG. 3 is an exploded view of the structure of FIG. 1;

FIG. 4 is a reverse view of FIG. 3;

fig. 5 is a bottom view of the lower filter plate in fig. 1, wherein a flow guide structure is formed at the bottom of the lower filter plate;

fig. 6 is a schematic structural view of a beverage capsule according to a second preferred embodiment of the present invention.

Description of reference numerals:

1 capsule body and 2 lower filter sheets

3 diversion flow passage 5 diversion structure

7 beverage filling agent 8 upper flow deflector

11 water outlet hole at the bottom of capsule cavity 12

21 central boss 22 inclined torus

23 transition arc surface 31 ring-shaped drainage groove

51 flow guide convex ring 52 flow guide cover

511 drainage notch 521 center flow guide column

522 flow guiding rib

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like are generally described with respect to the orientation shown in the drawings or the positional relationship of the components with respect to each other in the vertical, or gravitational direction.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The invention provides a beverage capsule, referring to fig. 1 and 6, the beverage capsule comprises a capsule body 1 with a capsule inner cavity 11, a lower filter plate 2 is arranged at the bottom of the capsule inner cavity 11, a flow guide structure 5 is formed at the bottom of the lower filter plate 2, the flow guide structure 5 extends downwards and is abutted to the bottom wall surface of the capsule inner cavity 11 to form a flow guide flow channel 3, a bottom water outlet hole 12 is formed at the bottom wall surface of the capsule inner cavity 11, and filtered fluid of the lower filter plate 2 is converged to the bottom water outlet hole 12 through the flow guide flow channel 3.

In this technical scheme, capsule cavity 11's bottom is provided with lower filter plate 2, the water conservancy diversion structure 5 that forms in the bottom of lower filter plate 2 and the diapire face looks butt of capsule cavity 11 in order to form water conservancy diversion runner 3, like this, the drink that brew in capsule cavity 11 gets into water conservancy diversion runner 3 after filtering through lower filter plate 2, and gently and evenly converge to bottom apopore 12 department through this water conservancy diversion runner 3, and then flow out smoothly and continuously from this bottom apopore 12, and then impel the drink to fall into in user's the flourishing liquid cup steadily and continuously, can effectively improve user experience to the use of beverage capsule. In addition, after the beverage is made and flows into the liquid containing cup body, a large amount of residual liquid is easy to remain in the beverage capsule, so that in the process of discarding the used beverage capsule, the liquid remaining in the beverage capsule is easy to drip downwards from the water outlet hole 12 at the bottom of the beverage capsule, further household articles of a user are polluted, and the use experience of the user is influenced; therefore, the flow guide structure 5 is arranged at the bottom of the lower filter plate 2, so that the flow path of the beverage from the lower filter plate 2 to the bottom water outlet 12 can be prolonged, and the flow guide structure 5 can also block residual liquid dropping from the lower filter plate 2, so that the probability that the household articles are polluted by the dropping of the beverage in the process of discarding the beverage capsules by a user can be effectively reduced.

Specifically, the flow guide structure 5 at the bottom of the lower filter 2 abuts against the bottom wall surface of the capsule cavity 11 to form the flow guide channel 3, so that the brewed beverage can only flow along the flow path of the flow guide channel 3 after being filtered by the lower filter 2, as shown in fig. 5. In addition, when making the drink, the drink still can give lower filter plate 2 a decurrent power, and then makes lower filter plate 2 hug closely the diapire face of capsule body 1 more, can effectively avoid the drink to flow out from the clearance department between the diapire face of the bottom wall face of water conservancy diversion structure 5 and capsule inner chamber 11.

In addition, the flow guide structure 5 and the lower filter plate 2 can be an integrally formed structure or a detachable structure. Preferably, with reference to fig. 1 and 5, the flow directing structure 5 is integrally formed with the lower filter plate 2. It can be understood that the flow guide structure 5 and the lower filter plate 2 are integrally formed, and the flow guide structure 5 is assembled at the bottom of the lower filter plate 2 without a plurality of production processes in the process of producing the beverage capsule, so that the production efficiency is improved, and the production cost is reduced. Certainly, the flow guide structure 5 and the lower filter plate 2 are integrally formed, and the flow guide effect of the flow guide structure 5 can be effectively prevented from being influenced due to the fact that the assembly is not in place.

Preferably, referring to fig. 1, 3 to 5, the diversion structure 5 includes a plurality of diversion convex rings 51 arranged radially outward at intervals along the bottom water outlet hole 12, a plurality of diversion gaps 511 distributed at intervals along the circumferential direction are formed at the bottom of the diversion convex rings 51, and the diversion flow channel 3 includes an annular diversion groove 31 and a diversion gap 511 formed between adjacent diversion convex rings 51. Understandably, the brewed beverage enters the annular drainage groove 31 below the filtering hole after being filtered by the filtering hole of the lower filtering sheet 2, the fluid flowing into the same annular drainage groove 31 uniformly converges to the adjacent drainage notch 511 at the radial inner side, and then intensively flows into the other annular drainage groove 31 from the drainage notch 511, so that the beverage is finally stably and continuously converged to the bottom water outlet 12 and flows out from the bottom water outlet 12 slowly, and the use experience of a user is improved.

Of course, the flow guiding structure 5 may also be in other suitable configurations, for example, the flow guiding structure 5 includes a spiral flow guiding rib spirally wound from the periphery of the lower filter plate 2 to the bottom water outlet 12, which is not illustrated here. Specifically, the flow guiding structure 5 formed by the spiral flow guiding ribs has a flow guiding channel 3 that is a spiral flow guiding channel spirally spiraling from the bottom periphery of the lower filter 2 to the bottom water outlet 12.

Specifically, referring to fig. 1 and 5, the number of turns of the guide collar 51 should be not more than 4 turns, i.e., the number of turns of the guide collar 51 should preferably be not less than 2 turns and not more than 4 turns. It can be understood that the number of turns of the flow guide convex ring 51 arranged on the bottom surface of the lower filter plate 2 is not too large or too small, and although the number of turns of the flow guide convex ring 51 is more, the beverage can smoothly flow out from the bottom water outlet 12 of the beverage capsule, but the beverage can easily flow out from the bottom water outlet 12 discontinuously; and the number of turns of the flow guide convex ring 51 is too small, so that the beverage drops into the liquid containing cup body of the user from the bottom water outlet hole 12 urgently, and the use experience of the user is influenced.

In addition, with continued reference to fig. 1 and 5, the height of the deflector bead 51 should be no less than 2mm and no greater than 5 mm. Specifically, the height parameter of the flow guiding convex ring 51 is preferably within this range relative to other dimensions, which not only enables the beverage to flow through the flow guiding channel 3 to the bottom water outlet 12 and flow out from the bottom water outlet 12 smoothly and continuously, but also enables the beverage capsule to have a small and compact overall structure, small occupied space and convenient transportation and storage.

Preferably, refer to fig. 5, the number of drainage breach 511 on the protruding circle 51 of adjacent water conservancy diversion is the same and stagger along circumference and arranges, so, the drainage breach 511 of stagger arrangement can effectively prolong the route of flowing through of drink in water conservancy diversion structure 5 to be favorable to the drink gently to flow from bottom apopore 12, of course, stagger the setting with drainage breach 511 between the protruding circle 51 of adjacent water conservancy diversion, still be favorable to the drink evenly to converge, and then make the drink flow from bottom apopore 12 continuously, be favorable to improving user's use experience.

In addition, the quantity of drainage breach 511 on every water conservancy diversion protruding circle 51 should be not less than 4 and be not more than 8, refer to fig. 5, so set up, be favorable to the drink steadily and converge to bottom apopore 12 department in succession, and then flow out from this bottom apopore 12 not anxiously slowly, make the user have better sense organ experience in the in-process of using.

Specifically, the diversion structure 5 further includes a diversion cover 52, the diversion cover 52 includes a central diversion column 521 and a plurality of diversion ribs 522 arranged at intervals along the circumferential direction, the central diversion column 521 extends downwards into the bottom water outlet 12, the diversion ribs 522 diverge from the periphery of the central diversion column 521 and extend to the inner end of the diversion flow channel 3, referring to fig. 1 and 5, the brewed beverage is filtered by the lower filter 2, and then converges to the bottom water outlet 12 through the diversion flow channel 3, and then converges to the central diversion column 521 through the diversion ribs 522 in the diversion cover 52, and finally a continuous and stable fluid flows out from the bottom end of the central diversion column 521, and further falls into the liquid containing cup body located below the bottom water outlet 12, so that the sensory experience of a user can be improved. In addition, the central air guide sleeve 52 is arranged at the bottom of the lower filter plate 2, so that the situation of lateral spraying of the beverage can be effectively reduced, and the situation that the surrounding environment of the liquid containing cup body is polluted due to the lateral spraying of the beverage can be avoided. The flow guiding ribs 522 play a role in guiding flow, so that the flow rate and the temperature of the beverage are continuous. Of course, the structure for converging the beverage in the bottom outlet 12 into a fluid stream may be other suitable structures besides the diversion cover 52 provided at the bottom of the lower filter 2 and extending into the bottom outlet 12, such as a diversion pin provided in the inner flow channel of the bottom outlet 12, which is not illustrated here.

The bottom end surface of the central guide column 521 is formed into a tapered surface or an arc surface which gradually shrinks downwards, referring to fig. 1 and 5, so that the beverage flowing into the central guide column 521 is conveniently converged into a continuous and stable fluid at the bottom end, and then flows out from the bottom end of the central guide column 521.

Further, referring to fig. 5, the number of the flow guide ribs 522 should be not less than 4 and not more than 8. It can be understood that the smaller the number of the diversion ribs 522 is, the more adverse effect is on the collection of the beverage, but the number of the diversion ribs 522 is not too large, and the too many diversion ribs 522 can greatly reduce the liquid flow area of the inner flow channel in the bottom water outlet hole 12, so that the beverage is ejected from the bottom water outlet hole 12 toward the liquid containing cup body of the user urgently, and the use experience of the user is affected.

In addition, referring to fig. 1 and 6, the diameter of the inner channel of the bottom outlet hole 12 should be not less than 4.5mm and not more than 8mm, and the distance between the inner channel and the outer peripheral wall of the central guide pillar 521 should be not less than 0.3mm and not more than 0.7mm, so that the beverage from the capsule inner cavity 11 can flow out of the inner channel of the bottom outlet hole 12 more smoothly.

In addition, referring to fig. 1 and 3, the lower filter 2 is detachably mounted at the bottom of the capsule cavity 11, so that the beverage capsule can be suitable for brewing different kinds of beverages by inserting the lower filter 2 of different specifications into the capsule body 1, and further the beverage capsule can be suitable for large-scale universal manufacturing.

Specifically, the lower filter plate 2 arranged in the capsule cavity 11 can prevent the undissolved drink filler 7 from leaking downwards, and after the drink filler 7 is dissolved in liquid (i.e. after being made into a drink), the drink can be filtered through the filter holes in the lower filter plate 2 and flows downwards, and then flows into the liquid containing cup body positioned below the drink capsule through the water outlet hole 12 at the bottom of the drink capsule, so that the size of the filter holes in the lower filter plate 2 is matched with the particle size of the drink filler 7 positioned above the lower filter plate 2.

Preferably, the filtering holes of the lower filtering sheet 2 are strip-shaped holes, the width of each strip-shaped hole is not less than 0.2mm and not more than 0.4mm, and the length of each strip-shaped hole is not less than 1.0mm and not more than 2.0 mm; or the filtering holes of the lower filtering sheet 2 are round holes, and the aperture of the round holes is not less than 0.2mm and not more than 0.5 mm.

Wherein, the filtration pore design on lower filter plate 2 is the aperture of a small circle, still can make lower filter plate 2 still have the effect of pressure boost when playing the filtering action for drink filler 7 that is located 2 tops of lower filter plate can be dissolved or extracted more completely, makes the drink taste of obtaining more fragrant and mellow, is favorable to improving user's use and experiences. In addition, the filter holes are uniformly distributed on the lower filter plate 2, which is beneficial to uniformly distributing the beverage, so that the beverage smoothly flows out from the water outlet hole 12 at the bottom of the beverage capsule to the liquid containing cup body of the user. Of course, the lower filter 2 may be in other arrangements, which are not illustrated.

Specifically, the present beverage capsules can be broadly classified into extraction type beverage capsules in which an extraction type drink filler 7 such as coffee powder, tea leaves, etc. is filled, and dissolution type beverage capsules in which a dissolution type drink filler 7 such as powdered milk tea, powdered soybean milk, or powdered coconut is accommodated. In addition, when the top and the bottom of the capsule body 1 are respectively provided with the upper flow deflector 8 and the lower filter 2, referring to fig. 6, the optimal brewing condition of the extracted beverage can be met, and the capsule is suitable for making the extracted beverage; if the lower filter 2 is only installed at the bottom of the capsule body 1, referring to fig. 1, the liquid injected into the capsule cavity 11 can directly inject the beverage filling 7 to make the beverage, i.e. this type of beverage capsule is better suitable for brewing and dissolving type beverage.

It should be particularly noted that the flow guiding structure in the technical solution of the present invention is not only suitable for extraction type beverage capsules, but also suitable for dissolution type beverage capsules, and no matter which type of beverage capsule is, the flow guiding structure disposed at the bottom of the lower filter plate can make the beverage smoothly and continuously flow out from the water outlet at the bottom, and further smoothly and continuously fall into the liquid containing cup body of the user.

Preferably, for a dissolution type beverage capsule, referring to fig. 1 to 3, the top surface of the lower filter 2 is formed with a central boss 21 protruding upward, and the top surface of the lower filter 2 is formed as an inclined torus 22 extending outward and downward from the central boss 21.

In this technical solution, the lower filter 2 has a central convex portion 21 and an inclined ring surface 22 extending outward and downward from the central convex portion 21, and the external high-pressure and high-speed fluid is sprayed toward the central convex portion 21 of the lower filter 2 through the liquid guiding puncture tube in the locking brewing device (i.e. the liquid guiding puncture tube is located right above the central convex portion 21), so that the downward high-pressure and high-speed fluid can be dispersed by the central convex portion 21, and the inclined ring surface 22 can be used as a flow guiding surface to make the dispersed fluid flow smoothly along the top surface thereof, and then the fluid impacting the inner peripheral wall is reflected by the inner peripheral wall of the capsule body 1, and finally the externally injected fluid generates an axially symmetric swirling vortex effect in the capsule inner cavity 11, so that the drink filler 7 in the capsule inner cavity 11 is dissolved rapidly and sufficiently, thereby effectively avoiding the waste of the drink filler 7, further, the brewed beverage is more fragrant and mellow, which is beneficial to improving the quality of the beverage. In addition, the central bulge part 21 is arranged at the center part of the top surface of the lower filter plate 2, so that the downward-flowing fluid can form a vortex which is symmetrical along the central axis of the capsule inner cavity 11 after being dispersed at the central bulge part 21, and the rapid and uniform dissolution of the drink filling agent 7 contained in the capsule inner cavity 11 is facilitated.

Specifically, the central protrusion 21 may have any suitable arrangement, for example, the central protrusion 21 has a hemispherical shape, etc., as long as the central protrusion 21 can disperse the externally injected fluid. Preferably, with reference to fig. 1 and 3, the central boss 21 is a semi-spherical or conical boss.

Further, referring to fig. 1 and 3, the maximum protrusion height of the central protrusion portion 21 is not less than 3mm and not more than 6mm, and/or a projection area of the central protrusion portion 21 on the top surface of the lower filter plate 2 is circular and the circular diameter is not less than 6mm and not more than 15 mm. It will be appreciated that the parameters of the central boss 21 are preferably within this range relative to other sizes of beverage capsules, and that the fluid impinging on the central boss 21 is dispersed to produce a better swirling effect.

Referring to fig. 1 and 3, the inclined ring surface 22 is an annular filter surface surrounding the central protrusion 21 and densely packing the filter holes, and the annular filter surface is formed as a conical surface or an arc surface. Specifically, set up annular filtering surface into conical surface or arc surface, be favorable to making the fluid of dispersion follow the last smooth and flow fast down along annular filtering surface, and then dissolve fast and fully and pile up drink filler 7 between the top surface of lower cassette 2 and the internal perisporium of capsule body 1, be favorable to reducing the dead angle, improve the dissolving effect of drink filler 7, and then improve the quality of drink.

Further, when the annular filtering surface is a circular arc surface, referring to fig. 1 and 3, the spherical radius of the annular filtering surface is not less than 25mm and not more than 50 mm. Specifically, the sphere radius of the annular filter surface ranges between 25mm and 50mm, which not only facilitates the rapid and sufficient dissolution of the drink filler 7 between the top surface of the lower filter 2 and the inner peripheral wall of the capsule body 1, but also facilitates the formation of a vortex in the beverage capsule by the fluid.

Preferably, referring to fig. 1 to 3, a smooth transition arc surface 23 should be formed between the annular filtering surface and the central protrusion 21, so that the drink filling agent 7 located between the annular filtering surface and the central protrusion 21 can be fully dissolved, which is beneficial to reduce dead corners and further improve the dissolving effect of the drink filling agent 7.

In addition, the capsule inner cavity 11 is a hemispherical cavity with an open top, and referring to fig. 1 and 3, by setting the capsule inner cavity 11 as the hemispherical cavity, the fluid from the inclined ring surface 22 can smoothly flow along the inner wall surface of the capsule body 1 from bottom to top, so as to form a swirling vortex with a larger diameter, which is beneficial to quickly and sufficiently dissolving the beverage filler 7 contained in the capsule inner cavity 11.

Preferably, referring to fig. 1 to 3, the central boss 21 is located directly above the bottom outlet hole 12. Specifically, lower cassette 2 includes central bellying 21 and the slope anchor ring 22 that distributes and have the filtration pore, and the drink that brew in capsule inner chamber 11 flows into downwards in the capsule inner chamber 11 that is located the filtration pore below from the top of lower cassette 2 through the filtration pore of evenly distributing in this slope anchor ring 22, then assembles in the bottom apopore 12 department that is located central bellying 21 under evenly, is favorable to the steady outflow of drink.

It should be particularly noted that other configurations and functions of the beverage capsule and the beverage machine according to the embodiment of the present invention are known to those skilled in the art, and are not described herein in detail in order to reduce redundancy.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. The beverage capsule is characterized by comprising a capsule body (1) with a capsule inner cavity (11), wherein a lower filter plate (2) is arranged at the bottom of the capsule inner cavity (11), a flow guide structure (5) is formed at the bottom of the lower filter plate (2), the flow guide structure (5) extends downwards and is abutted to the bottom wall surface of the capsule inner cavity (11) to form a flow guide flow channel (3), a bottom water outlet hole (12) is formed in the bottom wall surface of the capsule inner cavity (11), filtered fluid of the lower filter plate (2) is converged to the bottom water outlet hole (12) through the flow guide flow channel (3), a central bulge part (21) protruding upwards is formed on the top surface of the lower filter plate (2), and an inclined annular surface (22) extending outwards and downwards from the central bulge part (21) is formed on the top surface of the lower filter plate (2), the inclined ring surface (22) is an annular filtering surface which surrounds the central boss (21) and is densely distributed with filtering holes, the annular filtering surface is formed into a conical surface or an arc surface, and a transition arc surface (23) in smooth transition is formed between the annular filtering surface and the central boss (21).

2. Beverage capsule according to claim 1, wherein the flow directing structure (5) is integrally formed with the lower filter sheet (2).

3. The beverage capsule according to claim 1, wherein the flow guiding structure (5) comprises a plurality of flow guiding convex rings (51) arranged radially and outwardly at intervals along the bottom water outlet hole (12), a plurality of flow guiding gaps (511) distributed at intervals along the circumferential direction are formed at the bottom of the flow guiding convex rings (51), and the flow guiding channel (3) comprises annular flow guiding grooves (31) and the flow guiding gaps (511) formed between the adjacent flow guiding convex rings (51).

4. A beverage capsule according to claim 3, wherein the number of turns of the deflector bead (51) is not more than 4 turns.

5. Beverage capsule according to claim 3, wherein the height of the deflector bead (51) is not less than 2mm and not more than 5 mm.

6. Beverage capsule according to claim 3, wherein the number of drainage notches (511) on adjacent deflector beads (51) is the same and circumferentially staggered.

7. Beverage capsule according to claim 3, wherein the number of drainage notches (511) on each of the deflector beads (51) is not less than 4 and not more than 8.

8. The beverage capsule according to claim 1, wherein the flow guide channel (3) is a spiral flow guide channel spirally spiraling from the bottom periphery of the lower filter (2) to the bottom water outlet hole (12).

9. The beverage capsule according to any one of claims 1 to 8, wherein the flow guiding structure (5) further comprises a flow guiding cover (52), the flow guiding cover (52) comprises a central flow guiding column (521) and a plurality of flow guiding ribs (522) arranged at intervals along the circumferential direction, the central flow guiding column (521) extends downwards into the bottom water outlet hole (12), and the flow guiding ribs (522) are diverged from the periphery of the central flow guiding column (521) and extend to the inner end of the flow guiding channel (3).

10. The beverage capsule according to claim 1, characterized in that the filtering holes of the lower filter sheet (2) are bar-shaped holes, the width of the bar-shaped holes is not less than 0.2mm and not more than 0.5mm, and the length of the bar-shaped holes is not less than 0.2mm and not more than 0.5 mm; or the filtering holes of the lower filtering sheet (2) are round holes, and the aperture of the round holes is not less than 0.2mm and not more than 0.5 mm.