Heating mechanism of brewing device and coffee machine

Abstract

The utility model discloses a heating mechanism of a brewing device and a coffee maker, the heating mechanism is installed on an upper piston of the brewing device, and the heating mechanism comprises a heat conduction block installed on the upper piston; the heating block is arranged above the upper piston, and the bottom of the heating block is attached to the top of the heat conduction block; the heater is arranged on the heating block; the heating block is heated through the heater, heat is transmitted to the heat conduction block through the heating block, and the heat conduction block transmits the heat into the brewing barrel to heat coffee liquid in the brewing barrel, so that the temperature of the first cup of coffee is increased, and the brewed coffee is normal in temperature and uniform in taste.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, and in particular to a heating mechanism for a brewing device and a coffee machine. Background Technology

[0002] A coffee machine is a machine used to make coffee. It makes coffee by grinding coffee beans, pressurizing steam or using a water pump, etc. Coffee machines usually have multiple functions, such as adjusting the coffee strength and making different types of coffee; they are widely used in homes, offices, coffee shops and other places.

[0003] Current coffee machines, such as the U.S. Patent No. 5316781A, entitled "Brewing Device for Coffee Machine and Method of Producing Coffee," form a brewing cylinder between the lower piston, the upper piston, and the brewing tank during coffee brewing. After brewing, the coffee liquid in the brewing cylinder is pumped to the outlet channel and injected into the user's coffee cup through the pressure relief valve of the upper piston.

[0004] Due to weather conditions, in low temperatures, the first cup of coffee brewed by a coffee machine is often too cold, affecting its taste. This issue is resolved when brewing multiple cups consecutively, as the first brew essentially preheats the brewing vessel, ensuring subsequent brews are at a consistent temperature and have a uniform flavor. This is especially important in commercial automatic coffee machines, where customers often purchase coffee intermittently, leading to inconsistent taste.

[0005] In view of this, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heating mechanism for a brewing device and a coffee machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the first aspect of this utility model provides a heating mechanism for a brewing device, which is installed on the upper piston of the brewing device and includes:

[0008] The heat-conducting block is installed on the upper piston;

[0009] A heating block is positioned above the upper piston, with its bottom edge fitting against the top edge of the heat-conducting block.

[0010] A heater is installed on the heating block;

[0011] The heater is used to heat the heating block, and the heat-conducting block is used to transfer the heat from the heating block to the brewing cylinder of the brewing device.

[0012] In a further technical solution, the top of the upper piston is recessed downward to form a mounting cavity, and the heat-conducting block is installed in the mounting cavity.

[0013] In a further technical solution, at least one limiting member protrudes upward from the bottom of the mounting cavity, and the bottom of the heat-conducting block is recessed upward to form a number of limiting grooves corresponding to the limiting member, and one of the limiting grooves is engaged with one of the limiting members.

[0014] In a further technical solution, the number of limiting members is four, the number of limiting grooves is four, the four limiting members are respectively engaged with the four limiting grooves, and the four limiting grooves are equally spaced around the bottom of the heat-conducting block.

[0015] In a further technical solution, a pressure relief valve for passing coffee liquid is installed inside the mounting cavity, and a first through hole for installing the pressure relief valve is opened in the middle of the heat-conducting block.

[0016] In a further technical solution, the input end of the pressure relief valve is connected to the output end of the brewing cylinder, the output end of the pressure relief valve is provided with a liquid outlet pipe, and the middle part of the heating block has a second through hole for the liquid outlet pipe to pass through.

[0017] In a further technical solution, the side wall of the upper piston has a slot that penetrates the upper piston, and a pin is provided in the slot. The heat-conducting block has a through groove, and the pin passes through the heat-conducting block and the upper piston through the through groove and the slot, respectively.

[0018] In a further technical solution, the side of the heating block is recessed inward to form a mounting groove, and the heater is mounted in the mounting groove.

[0019] In a further technical solution, the heater is selected as a PTC heating element.

[0020] Secondly, this utility model also provides a coffee machine, including a heating mechanism for a brewing device.

[0021] Compared with the prior art, this utility model brings the following technical effects:

[0022] The heating mechanism of this invention for a brewing device heats a heating block via a heater, which then transfers heat to a heat-conducting block. The heat-conducting block then transfers heat to the brewing cylinder, heating the coffee liquid inside the cylinder, thereby raising the temperature of the first cup of coffee and ensuring that the brewed coffee is at a normal temperature and has a consistent taste.

[0023] The coffee machine of this utility model includes all the technical features and beneficial effects of the heating mechanism of a brewing device, and therefore will not be described in detail here. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the heating mechanism of a brewing device according to the present invention.

[0026] Figure 2 yes Figure 1 A breakdown diagram is shown in the image.

[0027] Figure 3 This is a schematic diagram of the heat-conducting block.

[0028] Figure 4 This is a schematic diagram of the upper piston structure.

[0029] Figure 5 This is a schematic diagram of the brewing device.

[0030] Explanation of key component symbols:

[0031] 1. Upper piston; 11. Mounting cavity; 111. Limiting component; 12. Pressure relief valve; 13. Slot; 14. Pin;

[0032] 2. Heat-conducting block; 21. Limiting groove; 22. First through hole; 23. Through groove;

[0033] 3. Heating block; 31. Second through hole; 32. Mounting slot;

[0034] 4. Heater. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] Example 1

[0041] See Figure 1-5 As shown, a heating mechanism for a brewing device, mounted on the upper piston 1 of the brewing device, includes:

[0042] Heat-conducting block 2 is installed on the upper piston 1;

[0043] Heating block 3 is positioned above the upper piston 1, with its bottom attached to the top of the heat-conducting block 2;

[0044] Heater 4 is installed on the heating block 3;

[0045] The heater 4 heats the heating block 3, which in turn transfers the heat to the heat-conducting block 2. The heat-conducting block 2 then transfers the heat to the brewing cylinder, heating the coffee liquid inside and thus raising the temperature of the first cup of coffee, ensuring that the brewed coffee is at the correct temperature and has a consistent taste.

[0046] In a further technical solution, the top of the upper piston 1 is recessed downward to form a mounting cavity 11, and the heat-conducting block 2 is mounted in the mounting cavity 11. At least one limiting member 111 protrudes upward from the bottom of the mounting cavity 11, and the bottom of the heat-conducting block 2 is recessed upward to form a number of limiting grooves 21 corresponding to the limiting member 111. Each limiting groove 21 engages with a limiting member 111. Through the cooperation of the limiting grooves 21 and the limiting members 111, the position of the heat-conducting block 2 is limited, preventing rotational displacement of the heat-conducting block 2 during use. It should be noted that the limiting member 111 in this embodiment can also simultaneously strengthen the upper piston 1.

[0047] In this embodiment, there are four limiting members 111 and four limiting grooves 21. The four limiting members 111 are respectively engaged with the four limiting grooves 21, and the four limiting grooves 21 are equally spaced around the bottom of the heat-conducting block 2.

[0048] In other specific embodiments, the number of limiting members 111 may be two, three or more, the number of limiting grooves 21 corresponds to the number of limiting members 111, and the limiting grooves 21 are equally spaced around the bottom of the heat-conducting block 2.

[0049] It should be noted that multiple limiting members 111 are also equidistantly arranged around the bottom of the mounting cavity 11, which can further increase the strength of the upper piston 1.

[0050] In a further technical solution, a pressure relief valve 12 for passing coffee liquid is installed in the mounting cavity 11, and a first through hole 22 for installing the pressure relief valve 12 is opened in the middle of the heat-conducting block 2. The first through hole 22 allows the pressure relief valve 12 to pass smoothly through the heat-conducting block 2, preventing the heat-conducting block 2 from affecting the installation of the pressure relief valve 12. Secondly, by adjusting the size of the first through hole 22, the heat-conducting block 2 can fit snugly against the pressure relief valve 12, thereby increasing the temperature of the pressure relief valve 12 and further ensuring the stability of the taste of the first cup of coffee.

[0051] In a further technical solution, the input end of the pressure relief valve 12 is connected to the output end of the brewing cylinder, and the output end of the pressure relief valve 12 is provided with a liquid outlet pipe. The heating block 3 has a second through hole 31 in its middle for the liquid outlet pipe to pass through. The second through hole 31 allows the liquid outlet pipe to pass smoothly through the heating block 3, preventing the heating block 3 from affecting the installation of the liquid outlet pipe.

[0052] In a further technical solution, the side wall of the upper piston 1 has a through groove 13, and a pin 14 is provided in the groove 13. The heat-conducting block 2 has a through groove 23, and the pin 14 passes through the heat-conducting block 2 and the upper piston 1 through the through groove 23 and the groove 13, respectively. The through groove 23 allows the pin 14 to limit the heat-conducting block 2 after it is inserted, preventing the heat-conducting block 2 from rotating or shifting during use.

[0053] In a further technical solution, the side of the heating block 3 is recessed inward to form a mounting groove 32, and the heater 4 is mounted in the mounting groove 32. This arrangement has a simple structure and is easy to install. As a preferred embodiment, the heater 4 in this embodiment is a PTC heating element.

[0054] Example 2

[0055] See Figure 1-5 As shown, the coffee machine includes a limiting mechanism for the brewing device. The coffee machine of this embodiment includes all the technical features and effects of Embodiment 1, and therefore will not be repeated here.

[0056] The terms "specific example" or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments, as long as they meet the purpose of the present invention, and all such changes should be within the scope of protection claimed by the present invention. For example, different combinations of specific embodiments and different combinations of distinguishing technical features.

Claims

1. A heating mechanism for a brewing device, mounted on the upper piston (1) of the brewing device, characterized in that: include: A heat-conducting block (2) is installed on the upper piston (1); The heating block (3) is disposed above the upper piston (1), and its bottom is in contact with the top of the heat-conducting block (2); Heater (4), installed on the heating block (3); The heater (4) is used to heat the heating block (3), and the heat-conducting block (2) is used to transfer the heat of the heating block (3) to the brewing cylinder of the brewing device.

2. The heating mechanism of a brewing device according to claim 1, characterized in that: The top of the upper piston (1) is recessed downward to form a mounting cavity (11), and the heat-conducting block (2) is installed in the mounting cavity (11).

3. The heating mechanism of a brewing device according to claim 2, characterized in that: At least one limiting member (111) protrudes upward from the bottom of the mounting cavity (11), and the bottom of the heat-conducting block (2) is recessed upward to form a number of limiting grooves (21) corresponding to the limiting member (111). One of the limiting grooves (21) is engaged with one of the limiting members (111).

4. The heating mechanism of a brewing device according to claim 3, characterized in that: The number of the limiting members (111) is four, the number of the limiting grooves (21) is four, the four limiting members (111) are respectively engaged with the four limiting grooves (21), and the four limiting grooves (21) are equally spaced around the bottom of the heat-conducting block (2).

5. The heating mechanism of a brewing device according to claim 2, characterized in that: The mounting cavity (11) is equipped with a pressure relief valve (12) for passing coffee liquid, and the heat-conducting block (2) has a first through hole (22) in the middle for installing the pressure relief valve (12).

6. The heating mechanism of a brewing device according to claim 5, characterized in that: The input end of the pressure relief valve (12) is connected to the output end of the brewing cylinder. The output end of the pressure relief valve (12) is provided with a liquid outlet pipe. The heating block (3) has a second through hole (31) in the middle for the liquid outlet pipe to pass through.

7. The heating mechanism of a brewing device according to claim 1, characterized in that: The upper piston (1) has a slot (13) through the side wall, and a pin (14) is provided in the slot (13). The heat-conducting block (2) has a through groove (23), and the pin (14) passes through the heat-conducting block (2) and the upper piston (1) through the through groove (23) and the slot (13) respectively.

8. The heating mechanism of a brewing device according to claim 1, characterized in that: The heating block (3) has an inwardly recessed side forming a mounting groove (32), and the heater (4) is mounted in the mounting groove (32).

9. The heating mechanism of a brewing device according to claim 1, characterized in that: The heater (4) is a PTC heating element.

10. A coffee machine, characterized in that: Includes the heating mechanism of a brewing device as described in any one of claims 1-9.

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