Preheating type brewing head and coffee machine

Abstract

The utility model discloses a preheating type brewing head which comprises a heating assembly and a brewing head body, the heating assembly comprises a heating shell and a heating piece, the heating shell is provided with a heating cavity, a water inlet and a water outlet, and the water inlet and the water outlet are both communicated with the heating cavity; the heating piece is arranged on the heating shell and is used for heating the heating cavity; the brewing head is provided with a heat conducting plate, the heating shell is installed on the heat conducting plate, and the heat conducting plate is used for guiding heat of the heating cavity to be transmitted to the brewing head; the brewing head is provided with a leading-in opening and a leading-out opening, and the leading-in opening is communicated with the water outlet. According to the preheating type brewing head and the coffee machine, heat of the heating shell can be used for preheating the brewing head, and the temperature of water in the brewing head is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to a preheating brewing head and a coffee machine. Background Art

[0002] At present, many coffee machine brewing heads on the market are made of plastic injection molding or metal casting. A heating structure is generally set up in the coffee machine, and the heating structure is indirectly connected to the brewing head through a pipe. The heated hot water flows to the brewing head through the pipe. In this way, the water temperature reaching the brewing head will decrease during the flow process, thereby failing to reach the ideal water temperature for coffee extraction, affecting the taste of the coffee. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art described above, the present invention provides a preheating brewing head and a coffee machine, which can use the heat of the heating shell to preheat the brewing head and reduce the water temperature in the brewing head.

[0004] The technical solution adopted by the present invention to solve the problem is:

[0005] A preheating brewing head comprises a heating assembly and a brewing head, the heating assembly comprising a heating shell and a heating element, the heating shell being provided with a heating chamber, a water inlet and a water outlet, the water inlet and the water outlet being both in communication with the heating chamber; the heating element being provided on the heating shell and being used to heat the heating chamber; the brewing head being provided with a heat conducting plate, the heating shell being mounted on the heat conducting plate, the heat conducting plate being used to guide the heat of the heating chamber to be transferred to the brewing head; the brewing head being provided with an inlet and a outlet, the inlet being in communication with the water outlet.

[0006] Furthermore, the heating element is provided above the heating cavity, and the heating cavity is used to face the heat conducting plate after the heating housing is mounted on the heat conducting plate.

[0007] Furthermore, the heating element is a heating resistor, and the heating resistor is arranged at the top of the heating shell.

[0008] Furthermore, the heat conducting plate includes a first plate segment and a second plate segment, the first plate segment is mounted on the top end of the brewing head so that the second plate segment extends from the brewing head; the heating shell is mounted on the second plate segment.

[0009] Furthermore, the preheating brewing head also includes a mounting bracket, and the second plate segment is mounted on the top end of the mounting bracket.

[0010] Furthermore, a positioning groove is provided on the brewing head, and the first plate segment is provided in the positioning groove; and a notch is provided on the side wall of the positioning groove for the second plate segment to extend out.

[0011] Furthermore, a plurality of positioning blocks are provided at the top end of the brewing head, and the plurality of positioning blocks are spaced apart in the circumferential direction of the brewing head and are arranged to form the positioning groove; the notch is formed between two adjacent positioning blocks.

[0012] Furthermore, the heat conducting plate is provided at the top end of the brewing head, the edge of the heat conducting plate protrudes from the peripheral edge of the top end of the brewing head, and the inlet passes through to the top end of the heat conducting plate.

[0013] A coffee machine comprises the preheating brewing head.

[0014] In summary, the present invention has the following technical effects:

[0015] On the one hand, the brew head is connected to the heating housing via a heat conducting plate. The heat conducting plate conducts part of the heat in the heating chamber to the brew head, so that the water temperature difference is not too large when it is guided through the heating chamber to the brew head, and the brew head is preheated. Therefore, the temperature of the water discharged from the brew head is relatively consistent with the water temperature in the heating chamber. On the other hand, the heating housing is directly on the heat conducting plate of the brew head, and the water outlet of the heating housing is directly connected to the water inlet of the brew head. This reduces the hot water flow path, and also reduces the temperature difference of the water temperature, thereby improving the coffee brewing taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the preheating brewing head of the present utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of the preheating brewing head of the present invention;

[0018] Figure 3 This is another structural schematic diagram of the preheating brewing head of the present utility model;

[0019] Figure 4 This is a schematic structural diagram of the heating component of the present invention;

[0020] Figure 5 This is a structural schematic diagram of the brewing head of the utility model.

[0021] Among them, the meanings of the figure marks are as follows: 10, heating shell; 11, water inlet; 20, heating element; 30, brewing head; 31, positioning block; 32, conductive connector; 33, inlet; 34, positioning groove; 40, heat conduction plate; 41, first plate section; 42, second plate section; 50, mounting bracket. DETAILED DESCRIPTION

[0022] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0025] See Figure 1-Figure 5 The present invention discloses a preheating brewing head 30, comprising a heating assembly and the brewing head 30. The heating assembly comprises a heating housing 10 and a heating element 20. The heating housing 10 is provided with a heating chamber, a water inlet 11, and a water outlet. The water inlet 11 and the water outlet are both connected to the heating chamber. The heating element 20 is disposed in the heating housing 10 and heats the heating chamber. Furthermore, the brewing head 30 is provided with a heat conducting plate 40, on which the heating housing 10 is mounted. The heat conducting plate 40 can transfer heat from the heating chamber to the brewing head 30. The brewing head 30 is provided with an inlet 33 and a water outlet. The inlet 33 is connected to the water outlet.

[0026] On the basis of the above structure, when using the preheating brewing head 30 of the present invention, the following description will be made by taking the preheating brewing head 30 as an example for use in a coffee machine:

[0027] The brewing head 30 is mounted on the coffee machine body, and the water inlet 11 on the heating shell 10 is connected to the water inlet pipe of the coffee machine. Water is introduced into the water inlet 11 through the water pipe and then into the heating chamber through the water inlet 11. After heating is completed, the water is introduced into the brewing head 30 through the water outlet through the inlet 33 of the brewing head 30 and then discharged through the outlet of the brewing head 30 to brew coffee.

[0028] Since the heating shell 10 is mounted on the heat conducting plate 40 on the brewing head 30, after the water flow is introduced into the water inlet 11 of the heating shell 10, the heating element 20 heats the water in the heating chamber, and the generated hot water is discharged to the brewing head 30 through the water outlet. Since the temperature of the coffee brewing water discharged from the brewing head 30 is controlled by the temperature of the water heated by the heating element 20 when the coffee machine is working, if the flow path of the hot water after being discharged from the heating chamber to the brewing head 30 is too large, the temperature of the water reaching the brewing head 30 will be greatly different from the actual required brewing temperature, so that the taste of the brewed coffee will be poor. Therefore, in this embodiment, on the one hand, the brewing head 30 is connected to the heating shell 10 through the heat conducting plate 40. The heat conducting plate 40 conducts part of the heat in the heating chamber to the brewing head 30, so that the heat is guided from the heating chamber to the brewing head 30 to preheat the brewing head 30. The temperature difference of the water will not be too large, so that the temperature of the water discharged from the brewing head 30 can be relatively consistent with the water temperature in the heating chamber. On the other hand, the heating shell 10 is directly on the heat conducting plate 40 of the brewing head 30, and the water outlet of the heating shell 10 is directly connected to the inlet 33 of the brewing head 30, which reduces the hot water flow path and also reduces the temperature difference of the water temperature, thereby improving the coffee brewing taste.

[0029] It should be noted that the heat conducting plate 40 can be made of heat conducting metal in the prior art, such as an aluminum plate.

[0030] Furthermore, the heating element 20 is arranged above the heating cavity. The heating cavity can face the heat conducting plate 40 after the heating shell 10 is installed on the heat conducting plate 40, that is, the heating cavity can be fitted with the end surface of the heat conducting plate 40. After the heating element 20 heats above the heating cavity, it heats the heating cavity. In this way, the heat of the hot water in the heating cavity is directly transferred to the heat conducting plate 40. The heat conducting plate 40 can directly receive the heat from the heating cavity and then transfer it to the brewing head 30, so that the heat utilization rate is higher.

[0031] Of course, the heating element 20 may also be arranged around the outer periphery of the heating shell 10 and around the outer periphery of the heating cavity, and the bottom end of the heating cavity may be directly attached to the heat conducting plate 40 .

[0032] Furthermore, the above-mentioned heating element 20 is a heating resistor, which is arranged at the top of the heating shell 10. The terminal of the heating resistor can be electrically connected to the control circuit board extending from the heating shell 10 to the coffee machine, so that the heating resistor can be heated after being energized.

[0033] In other cases, the heating element 20 may also be implemented as other electric heating structures such as a heating wire or a heating tube in the prior art.

[0034] Example 1,

[0035] Further, see Figure 1 、 Figure 2 as well as Figure 5 In this embodiment, the heat conducting plate 40 includes a first plate segment 41 and a second plate segment 42. The first plate segment 41 is mounted on the top of the brewing head 30, such that the second plate segment 42 extends from the brewing head 30, and the heating housing 10 is mounted on the second plate segment 42. In other words, the first and second plate segments 41, 42 of the heat conducting plate 40 stagger the heating housing 10 and the brewing head 30, and heat is conducted through the first and second plate segments 41, 42 of the heat conducting plate 40. Since the brewing head 30 is generally located at the outlet of the coffee machine, the heating housing 10 and the brewing head 30 are staggered with the first and second plate segments 41, 42 of the heat conducting plate 40 positioned above and below, respectively. The brewing head 30 directly corresponds to the outlet of the coffee machine, while the staggered heating housing 10 can be located inside the coffee machine, eliminating the need to modify the structure at the outlet of the coffee machine and facilitating assembly.

[0036] Furthermore, since the second plate section 42 extends out of the brewing head 30, after the heating shell 10 is installed on the second plate section 42, in order to improve the load-bearing capacity of the second plate section 42, a mounting bracket 50 is provided at the bottom end of the second plate section 42 to support the second plate section 42, and the mounting bracket 50 is assembled to the body of the coffee machine by connecting screws, bolts and other structures on the mounting bracket 50, which facilitates assembly and has a stable structure after assembly.

[0037] Furthermore, a positioning groove 34 can be provided on the brewing head 30, and the first plate segment 41 can be positioned in the positioning groove 34. The sidewalls of the positioning groove 34 are provided with a notch through which the second plate segment 42 can extend. Thus, when assembling the heat conducting plate 40, the first plate segment 41 of the heat conducting plate 40 can be installed using the positioning groove 34 as a base for positioning and assembly, thus ensuring a stable structure after assembly.

[0038] More specifically, a plurality of positioning blocks 31 are provided at the top of the brew head 30. The plurality of positioning blocks 31 are spaced apart circumferentially around the brew head 30 and surround a positioning groove 34, so that the aforementioned gap is formed between two adjacent positioning blocks 31. After the heat conducting plate 40 is placed, the plurality of positioning blocks 31 are used to limit the position of the first plate segment 41, thereby reducing the possibility of displacement of the heat conducting plate 40 after assembly.

[0039] In addition, the positioning groove 34 is formed by the protruding positioning block 31 structure, and a mounting hole can be set on the positioning block 31, and screws, bolts and other structures are inserted into the mounting hole to position and assemble the brewing head 30 and the structure of the coffee machine. In this way, the installation accuracy of the brewing head 30 is higher.

[0040] Of course, the groove structure may also be formed by directly processing the top of the brewing head 30 .

[0041] Example 2,

[0042] Different from the above-mentioned embodiment 1, in this embodiment, the heat conducting plate 40 can be arranged at the top of the brewing head 30, and the edge of the heat conducting plate 40 protrudes from the top edge of the brewing head 30. The above-mentioned inlet 33 passes through the top of the heat conducting plate 40, so that the water outlet at the bottom end of the heating shell 10 is connected with the inlet 33 passing through the heat conducting plate 40, and the hot water in the heating chamber flows directly downward into the brewing head 30, reducing the hot water flow path and making the water temperature difference smaller.

[0043] Furthermore, since the edge of the heat conducting plate 40 protrudes from the periphery of the brew head 30, the heat conducting surface formed by the heat conducting plate 40 is larger than the end surface area of ​​the brew head 30, thereby improving heat conduction efficiency. Furthermore, after the heating housing 10 is assembled, the mounting surface formed is also larger, making assembly more convenient.

[0044] Implementation,3,

[0045] A coffee machine includes the preheating brewing head 30 of the above-mentioned embodiments 1 and 2, wherein the heating housing 10 of the heating assembly is assembled into the coffee machine body, and the brewing head 30 is installed on the coffee machine body. The water inlet 11 on the heating housing 10 is connected to the water introduction pipe of the coffee machine. Water is introduced into the water inlet 11 through the water pipe and then introduced into the heating chamber through the water inlet 11. After heating is completed, the water is introduced into the brewing head 30 through the water outlet through the introduction port 33 of the brewing head 30 and discharged through the outlet of the brewing head 30 to brew coffee.

[0046] Specifically, the structure, working principle and effect of the preheating brewing head 30 applied to the coffee machine in this embodiment are the same as those in any of the above embodiments, and the structure of the coffee machine can be selected from the coffee machine in the prior art, which will not be described in detail here.

[0047] It should be noted that in any of the above embodiments, a conducting connector 32 can be provided at the inlet 33 of the brewing head 30 for accessing a pipeline or directly inserting it through the water outlet of the heating shell 10 to facilitate the connection of the brewing head 30 with the water path of the heating shell 10.

[0048] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A preheating brewing head, characterized in that: It includes a heating component and a brewing head, the heating component includes a heating shell and a heating element, the heating shell is provided with a heating chamber, a water inlet and a water outlet, and the water inlet and the water outlet are both connected to the heating chamber; the heating element is provided in the heating shell and is used to heat the heating chamber; the brewing head is provided with a heat conducting plate, the heating shell is installed on the heat conducting plate, and the heat conducting plate is used to guide the heat of the heating chamber to be transferred to the brewing head; the brewing head is provided with an inlet and a outlet, and the inlet is connected to the water outlet.

2. The preheating brewing head according to claim 1, characterized in that: The heating element is arranged above the heating cavity, and the heating cavity is used to face the heat conducting plate after the heating housing is mounted on the heat conducting plate.

3. The preheating brewing head according to claim 2, characterized in that: The heating element is a heating resistor, and the heating resistor is arranged on the top of the heating shell.

4. The preheating brewing head according to claim 1, characterized in that: The heat conducting plate includes a first plate segment and a second plate segment. The first plate segment is mounted on the top of the brewing head so that the second plate segment extends from the brewing head. The heating shell is mounted on the second plate segment.

5. The preheating brewing head according to claim 4, characterized in that: The preheating brewing head further includes a mounting bracket, and the second plate segment is mounted on the top end of the mounting bracket.

6. The preheating brewing head according to claim 4, characterized in that: A positioning groove is provided on the brewing head, and the first plate section is provided in the positioning groove; a side wall of the positioning groove is provided with a notch for the second plate section to extend out.

7. The preheating brewing head according to claim 6, characterized in that: A plurality of positioning blocks are provided at the top end of the brewing head. The plurality of positioning blocks are spaced apart in the circumferential direction of the brewing head and are arranged to form the positioning groove. The notch is formed between two adjacent positioning blocks.

8. The preheating brewing head according to claim 1, characterized in that: The heat conducting plate is arranged at the top end of the brewing head, the edge of the heat conducting plate protrudes from the peripheral edge of the top end of the brewing head, and the inlet passes through to the top end of the heat conducting plate.

9. A coffee machine, characterized in that: The invention comprises a preheating brewing head according to any one of claims 1 to 8.

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