Cold drip coffee maker

By incorporating a refrigeration component and a refrigeration block into the ice drip coffee machine, the problem that existing technologies can only use ice cubes to make ice drip coffee has been solved. This allows ice drip coffee to be made using room temperature liquid water, thus improving the user experience.

WO2026045234A1PCT designated stage Publication Date: 2026-03-05GUANGDONG XINBAO ELECTRICAL APPLIANCES HLDG CO LTD
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Patent Information

Application Number
PCT/CN2025/083663
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-27
Filing Date
2025-03-20
Publication Date
2026-03-05

AI Technical Summary

Technical Problem

Existing iced drip coffee machines can only make iced drip coffee using ice cubes, and cannot make iced drip coffee using room temperature liquid water, which limits the user experience.

Method used

A refrigeration unit and a refrigeration block are installed in the coffee machine. The room temperature liquid water is cooled through the drip channel and cold air channel in the refrigeration block to make iced drip coffee.

Benefits of technology

It enables the use of room temperature liquid water to make iced drip coffee, improving the user experience and enhancing the functionality of the coffee machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

A cold drip coffee maker, which belongs to the technical field of small household appliances. The cold drip coffee maker comprises a main unit (1), and a brew head (2) and a brew box (6) which are arranged in the main unit (1), wherein the main unit (1) has a cold chamber (12); the brew box (6) is used to contain room-temperature liquid water for brewing; and the brew head (2) is used to guide the room-temperature liquid water in the brew box (6) into a carafe (4). The cold drip coffee maker further comprises: a refrigeration assembly (7) configured to inject cold air into the cold chamber (12); and a refrigeration member (3) fixed in the cold chamber (12) and located below the brew head (2), wherein the refrigeration member (3) is provided with a dripping channel (35) and a cold air channel (36), the dripping channel (35) enables melted ice water or room-temperature liquid water flowing out of the brew head (2) to drip into the carafe (4), and cold air entering the cold chamber (12) can enter into the cold air channel (36), so as to cool the room-temperature liquid water flowing into the dripping channel (35). The cold drip coffee maker can cool, by means of the refrigeration member (3), the room-temperature liquid water dripping into the coffee maker, thereby making cold drip coffee with or without ice, and improving the user experience.
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Description

A type of ice drip coffee machine Technical Field

[0001] This utility model belongs to the field of small household appliance technology, and in particular relates to an ice drip coffee machine. Background Technology

[0002] Iced drip coffee, also known as water drip coffee, is a method of brewing coffee using ice water, cold water, or ice cubes. Chinese patent CN221242531U discloses a temperature-controlled ice drip coffee machine. This machine includes a main body and a brewing assembly. The main body has a cold chamber and a brewing chamber, with the coffee cup placed inside the cold chamber. The brewing assembly includes a brewing tank and a brewing head. The brewing tank, placed in the brewing chamber, holds the ice cubes. The brewing head is used to pour the ice water from the brewing tank into the coffee cup to make ice drip coffee. This ice drip coffee machine can only use ice cubes to make ice drip coffee; it cannot use room temperature liquid water.

[0003] Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the purpose of this utility model embodiment is to provide an ice drip coffee machine. This ice drip coffee machine can cool the room-temperature liquid water dripping into the coffee machine using a cooling block, thereby enabling the production of ice drip coffee with or without ice, improving the user experience.

[0005] The technical solution adopted in this embodiment of the utility model is:

[0006] An ice drip coffee machine includes a main unit, a brewing head, and a brewing chamber mounted on the main unit. The main unit has a cold chamber, and the brewing chamber is used to hold ice cubes or room temperature liquid water for brewing. The brewing head is fixed above the cold chamber and is used to pour melted ice water or room temperature liquid water from the brewing chamber into a coffee cup. The ice drip coffee machine also includes:

[0007] A refrigeration unit, located on the main unit, is used to inject cold air into the cold chamber;

[0008] A cooling block is disposed within the cold chamber and located below the brewing head. The cooling block is provided with a drip channel and a cold air channel. The drip channel is opposite to the brewing head and is used to drip melted ice water or room temperature liquid water flowing out of the brewing head into the coffee cup. The cold air in the cold chamber can enter the cold air channel to cool the ice water or room temperature liquid water entering the drip channel.

[0009] Furthermore, the dripping channel extends through both the upper and lower ends of the cooling block, and the cold air channel is arranged around the dripping channel. This allows for all-around cooling of the interior of the dripping channel, thereby accelerating the rapid cooling of room-temperature water entering the dripping channel.

[0010] Furthermore, the cooling block has a hollow structure, and the area between the outer wall of the dripping channel and the inner wall of the cooling block forms the cold air channel. This structure is simple and can reduce the weight of the cooling block.

[0011] Furthermore, the cooling block is L-shaped, with its horizontal portion positioned above the coffee cup, the drip channel located on the horizontal portion of the cooling block, and its vertical portion fixed to the wall of the cold compartment. This structure facilitates the installation and removal of the cooling block.

[0012] Furthermore, the refrigeration block is provided with a block cold air inlet and a block cold air outlet. The block cold air inlet is located on the bottom surface of the horizontal part, and the block cold air outlet is located on the side of the vertical part opposite to the wall of the cold compartment and opposite to the cold air outlet of the cold compartment.

[0013] Furthermore, there are multiple block cold air inlets, which are spaced apart around the bottom outlet of the dripping channel. The arrangement of the block cold air inlets increases the amount of cold air entering the cold air channel, and their proximity to the bottom outlet of the dripping channel increases the efficiency of heat exchange with the dripping channel.

[0014] Furthermore, the upper surface of the horizontal portion of the cooling block is provided with a lower groove surrounding the top inlet of the drip channel. This lower groove facilitates the flow of room-temperature water discharged from the brewing head into the drip channel.

[0015] Furthermore, the dripping channel includes a water-dividing column and a water-dividing rod connecting the water-dividing column and the inner wall of the dripping channel. The water-dividing column is coaxial with the dripping channel. The water-dividing column and the water-dividing rod can perform water-dividing functions and can also disperse the tiny water streams dripping onto the water-dividing column 33 into water droplets, which facilitates cooling.

[0016] Furthermore, the cold storage room has a cold air inlet and a cold air outlet on its wall, with the cold air outlet located above the cold air inlet.

[0017] Furthermore, the refrigeration component includes a refrigeration plate, a heat-conducting plate, and a blower. The heat-conducting plate is provided with a refrigeration channel. The heat-conducting plate is connected to the refrigeration plate. The refrigeration channel connects the cold air inlet of the chamber and the cold air outlet of the chamber. The blower is used to send the cold air in the refrigeration channel into the cold chamber.

[0018] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows:

[0019] This invention relates to an iced drip coffee machine that can also make iced drip coffee using room temperature liquid water. By incorporating a cooling block at the bottom of the brewing head, which includes a drip channel and a cold air channel, room temperature liquid water in the brewing chamber enters the drip channel and is rapidly cooled by the cold air circulating in the cold air channel, causing the water to drip into the coffee cup. This iced drip coffee machine can make iced drip coffee with or without ice, improving the user experience.

[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit the present invention.

[0021] The overview of various implementations or examples of the technology described in this utility model is not a complete disclosure of the full scope or all features of the disclosed technology. Attached Figure Description

[0022] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to explain embodiments of the utility model. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts.

[0023] Figure 1 is a front view of the ice drip coffee machine according to an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of the structure when the cold compartment and the brewing compartment of this utility model are opened respectively;

[0025] Figure 3 is an exploded view of the ice drip coffee machine according to an embodiment of the present invention;

[0026] Figure 4 is a first-view view of the refrigeration block according to an embodiment of the present invention;

[0027] Figure 5 is a second perspective view of the refrigeration block according to an embodiment of the present invention;

[0028] Figure 6 is a main sectional view of the refrigeration block according to an embodiment of the present invention;

[0029] Figure 7 is an exploded view of the refrigeration component according to an embodiment of the present invention.

[0030] In the diagram: 1. Main unit; 10. Brewing chamber door; 11. Brewing chamber; 12. Cold chamber; 13. Cold chamber door; 15. Cold air inlet; 16. Cold air outlet; 17. Cover; 2. Brewing head; 20. Knob assembly; 21. Brewing head connector; 22. Sealing ring; 23. Brewing head body; 3. Cooling block; 30. Lower recess; 31. Horizontal section; 32. Vertical section; 33. Water distribution column; 34. Water distribution rod; 35. Drip channel; 36. Cold air channel; 37. Block cold air outlet; 38. Block cold air inlet; 4. Coffee cup; 5. Coffee funnel; 6. Brewing box; 7. Refrigeration components; 70. Blower; 71. Refrigeration plate; 72. Heat conduction plate; 73. Cooling fan; 74. Water-absorbing pad; 75. Insulation cotton; 76. Refrigeration aisle; 77. Power board. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0034] As shown in Figure 1, this utility model provides an iced drip coffee machine, which includes a main unit 1 and a brewing head 2 and a brewing chamber 6 disposed on the main unit 1.

[0035] The main unit 1 has a cold compartment 12 and a brewing compartment 11. The cold compartment 12 can be used to place a coffee cup 4, and the coffee cup 4 can hold a coffee filter 5 for holding coffee grounds. The brewing compartment 11 is used to hold a brewing chamber 6. The main unit 1 is also provided with a brewing compartment door 10 for opening or closing the brewing compartment 11, and a cold compartment door 13 for opening or closing the cold compartment 12.

[0036] The brewing chamber 6 is used to hold ice cubes or room temperature liquid water for brewing. The brewing head 2 is fixed above the cold chamber 12. The brewing head 2 is used to guide the melted ice water or room temperature liquid water in the brewing chamber 6 into the coffee filter 5 in the coffee cup 4, thereby making coffee.

[0037] As shown in Figures 2 and 7, the ice drip coffee machine of this embodiment also includes a refrigeration component 7 and a refrigeration block 3.

[0038] The refrigeration component 7 is located on the main unit 1. The refrigeration component 7 can inject cold air into the cold chamber 12, so that the cold chamber 12 is kept in a low temperature environment, so that coffee can be brewed in a low temperature environment and can be drunk immediately after brewing, eliminating the need for refrigeration and thus shortening the user's waiting time.

[0039] The cooling block 3 is located inside the cold chamber 12 and below the brewing head 2. The cooling block 3 is provided with a drip channel 35 and a cold air channel 36. The drip channel 35 is opposite to the brewing head 2 and is used to drip the melted ice water or room temperature liquid water flowing out of the brewing head 2 into the coffee cup 4.

[0040] The cold air injected into the cold chamber 12 by the refrigeration component 7 can enter the cold air channel 36 to cool the ice water or room temperature liquid water that enters the drip channel 35. The cooled ice water or room temperature water drips into the coffee funnel to make iced drip coffee.

[0041] The iced drip coffee machine of this embodiment can also make iced drip coffee using room temperature liquid water. By installing a cooling block 3 at the bottom of the brewing head 2, which contains a drip channel 35 and a cold air channel 36, the room temperature liquid water in the brewing tank 6 enters the drip channel 35 and is rapidly cooled by the cold air flowing through the cold air channel 36, thus forming ice water dripping into the coffee cup 4. This iced drip coffee machine can produce iced drip coffee with or without ice, improving the user experience.

[0042] As shown in Figure 2, the brewing head 2 in this embodiment mainly includes a brewing head body 23, a brewing head connector 21, and a knob assembly 20. The brewing head body 23 is located on the top wall of the cold chamber 12. The brewing head body 23 has a brewing channel, with both ends extending to the bottom and top of the brewing head body 23 to form a lower water outlet and an upper water inlet, respectively. The upper water inlet is connected to the water outlet at the bottom of the brewing chamber 6 through the brewing head connector 21 and a sealing ring 22. The lower water outlet faces the coffee cup 4, so that the ice water or room temperature water formed by melting ice in the brewing chamber 6 is sprayed into the coffee cup 4 through the brewing head body 23 to brew the coffee powder in the coffee cup 4.

[0043] Furthermore, a knob assembly 20 is connected to the periphery of the brewing head body 23. The knob assembly 20 extends into the brewing channel inside the brewing head body 23. By rotating the knob assembly 20, the effective flow diameter of the brewing channel can be changed, thereby adjusting the flow rate of ice water in the brewing channel.

[0044] As shown in Figures 4 to 6, in some embodiments, the drip channel 35 is a vertical channel that runs through the upper and lower ends of the cooling block 3. The top inlet of the drip channel 35 is connected to the water outlet of the brewing head 2, and the bottom outlet of the drip channel 35 is located directly above the coffee filter 5.

[0045] Preferably, the cold air channel 36 is arranged around the drip channel 35, so that the interior of the drip channel 35 can be cooled in all directions, thereby accelerating the rapid cooling of the room temperature water entering the drip channel 35.

[0046] In some embodiments, the drip channel 35 has a water-dividing column 33 inside and water-dividing rods 34 connecting the water-dividing column 33 and the inner wall of the drip channel 35. The water-dividing column 33 is coaxially arranged with the drip channel 35, and a plurality of water-dividing rods 34 are arranged radially around the water-dividing column 33.

[0047] The top of the water-distributing column 33 is opposite to the water outlet of the brewing head 2. When the brewing water discharged from the brewing head 2 drips onto the water-distributing column 33 or the water-distributing rod 34, the ice droplets are broken up and splashed onto the inner wall of the drip channel 35, and then flow down along the drip channel 35. The water-distributing column 33 and the water-distributing rod 34 can realize the function of water distribution, and can also scatter the tiny water droplets falling on the water-distributing column 33 into water droplets.

[0048] In some embodiments, the cooling block 3 has a hollow structure, and a cold air channel 36 is formed inside the cooling block 3. The area between the outer wall of the dripping channel 35 and the inner wall of the cooling block 3 forms the cold air channel 36.

[0049] As shown in Figures 4 to 6, in some implementations, the cooling block 3 is L-shaped, mainly consisting of a horizontal part 31 and a vertical part 32.

[0050] The drip channel 35 is located on the horizontal part 31 of the cooling block 3, which is directly above the coffee cup 4. The vertical part 32 of the cooling block 3 can be fixed to the wall of the cold chamber 12 by means of mechanical connection such as bolts, thereby fixing the cooling block 3.

[0051] In some embodiments, the refrigeration block 3 is provided with a block cold air inlet 38 and a block cold air outlet 37. The block cold air inlet 38 is located on the bottom surface of the horizontal portion 31, and the block cold air outlet 37 is located on the side of the vertical portion 32 opposite to the wall of the cold compartment 12, and is opposite to the cold air outlet 16 of the compartment.

[0052] The cooling block 3 has multiple block cold air inlets 38, which are spaced apart around the bottom outlet of the drip channel 35. The arrangement of the block cold air inlets 38 increases the amount of cold air entering the cold air channel 36, and the proximity of the bottom outlet to the drip channel 35 increases the efficiency of heat exchange with the drip channel 35.

[0053] In some embodiments, the upper surface of the horizontal portion 31 of the cooling block 3 is provided with a lower groove 30 surrounding the top inlet of the drip channel 35. The lower groove 30 is funnel-shaped, and room temperature water discharged from the brewing head 2 can flow into the drip channel 35 through the lower groove 30.

[0054] In some embodiments, the refrigeration assembly 7 includes a refrigeration plate 71, a heat-conducting plate 72, a blower 70, and a cooling fan 73. The heat-conducting plate 72 is provided with a refrigeration channel 76, which connects the cold air inlet 15 and the cold air outlet 16 of the cold compartment 12.

[0055] The heat-conducting plate 72 is connected to the cooling plate 71 to absorb the cold energy generated by the cooling plate 71. The blower 70 is used to blow air into the cooling channel 76 to form cold air. After the cold air enters the cold chamber 12 through the cold air inlet 15, it will flow into the cold air channel 36 to cool the room temperature dripping water in the dripping channel 35. Finally, the cold air is discharged through the cold air outlet 16 and then enters the cooling channel 76, thereby realizing the circulation of cold air.

[0056] Preferably, the host unit 1 in this embodiment is also provided with an absorbent pad 74 and an insulating cotton 75. The absorbent pad 74 is mainly used to absorb liquid water inside the host unit 1, and the insulating cotton 75 and the casing 17 of the host unit 1 play a role in heat preservation.

[0057] In some embodiments, there are two heat-conducting plates 72, located on opposite sides of the cooling plate 71. One heat-conducting plate 72 absorbs the cold energy generated by the cooling plate 71, and the other heat-conducting plate 72 absorbs the heat generated by the cooling plate 71 during operation. Each of the two heat-conducting plates 72 has fins on its side facing away from the cooling plate 71. The fins on the heat-conducting plate 72 that cooperates with the blower 70 define a cooling channel 76, while the fins on the heat-conducting plate 72 that cooperates with the cooling fan 73 dissipate the heat generated by the cooling plate 71. The cooling fan 73 blows the heat generated on the heat-conducting plate 72 out through the heat dissipation vents on the housing 17.

[0058] In addition, in some embodiments, the host 1 is also provided with a power board 77, which supplies power to the cooling chip 71, the blower 70 and the cooling fan 73, etc.

[0059] The embodiments of this utility model provided above are intended to be illustrative and not restrictive. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. An ice drip coffee machine, comprising a main unit (1) and a brewing head (2) and a brewing chamber (6) disposed on the main unit (1), wherein the main unit (1) has a cold chamber (12), the brewing chamber (6) is used to hold ice cubes or room temperature liquid water for brewing, and the brewing head (2) is fixed above the cold chamber (12) for introducing melted ice water or room temperature liquid water in the brewing chamber (6) into a coffee cup (4), characterized in that, The ice drip coffee machine also includes: A refrigeration unit (7) is provided on the main unit (1) for injecting cold air into the cold compartment (12); A cooling block (3) is located inside the cold chamber (12) and below the brewing head (2). The cooling block (3) is provided with a drip channel (35) and a cold air channel (36). The drip channel (35) is opposite to the brewing head (2) to drip the melted ice water or room temperature liquid water flowing out of the brewing head (2) into the coffee cup (4). The cold air in the cold chamber (12) can enter the cold air channel (36) to cool the ice water or room temperature liquid water entering the drip channel (35).

2. The ice drip coffee machine as described in claim 1, characterized in that, The drip channel (35) runs through the upper and lower ends of the cooling block (3), and the cold air channel (36) is arranged around the drip channel (35).

3. The ice drip coffee machine as described in claim 2, characterized in that, The cooling block (3) has a hollow structure, and the area between the outer wall of the drip channel (35) and the inner wall of the cooling block (3) forms the cold air channel (36).

4. The ice drip coffee machine as described in claim 3, characterized in that, The refrigeration block (3) is L-shaped. The horizontal part (31) of the refrigeration block (3) is located above the coffee cup (4). The drip channel (35) is located on the horizontal part (31) of the refrigeration block (3). The vertical part (32) of the refrigeration block (3) is fixed to the wall of the cold chamber (12).

5. The ice drip coffee machine as described in claim 4, characterized in that, The refrigeration block (3) is provided with a block cold air inlet (38) and a block cold air outlet (37). The block cold air inlet (38) is located on the bottom surface of the horizontal part (31), and the block cold air outlet (37) is located on the side of the vertical part (32) opposite to the wall of the cold compartment (12) and opposite to the cold air outlet (16) of the cold compartment (12).

6. The ice drip coffee machine as described in claim 5, characterized in that, There are multiple block cold air inlets (38), and the multiple block cold air inlets (38) are arranged at intervals around the bottom outlet of the drip channel (35).

7. The ice drip coffee machine as described in claim 4, characterized in that, The upper surface of the horizontal portion (31) of the cooling block (3) is provided with a lower groove (30) surrounding the top inlet of the drip channel (35).

8. The ice drip coffee machine as described in claim 2, characterized in that, The drip channel (35) has a water-dividing column (33) and a water-dividing rod (34) connecting the water-dividing column (33) and the inner wall of the drip channel (35). The water-dividing column (33) is coaxial with the drip channel (35).

9. The ice drip coffee machine as described in claim 1, characterized in that, The cold storage (12) has a cold air inlet (15) and a cold air outlet (16) on its wall, with the cold air outlet (16) located above the cold air inlet (15).

10. An ice drip coffee machine as described in claim 9, characterized in that, The refrigeration assembly (7) includes a refrigeration plate (71), a heat-conducting plate (72), and a blower (70). The heat-conducting plate (72) is provided with a refrigeration channel (76). The heat-conducting plate (72) is connected to the refrigeration plate (71). The refrigeration channel (76) connects the cold air inlet (15) of the chamber and the cold air outlet (16) of the chamber. The blower (70) is used to send the cold energy in the refrigeration channel (76) into the cold chamber (12).

Citation Information

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