Brewing head structure, coffee machine temperature control system and coffee machine

By incorporating temperature sensing and heating components into the brewing head structure, the problem of inaccurate liquid temperature monitoring in traditional coffee machines is solved, achieving stable control of coffee extraction temperature and improving coffee quality and user experience.

CN223614600UActive Publication Date: 2025-12-02FOSHAN LAMBDA TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423243363.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-12-02
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

In traditional coffee machines, the temperature sensor is located on the boiler, which leads to inaccurate liquid temperature at the brew head. This means the temperature sensor cannot accurately monitor the liquid temperature at the brew head, resulting in unstable coffee extraction temperature and affecting the taste and quality of the coffee.

Method used

A temperature sensing component is installed in the brewing head structure and connected to an external controller via a liquid infusion base to monitor and provide feedback on the internal liquid temperature of the brewing head in real time. Combined with heating components and seals, this ensures the accuracy and stability of temperature control.

Benefits of technology

It enables real-time and accurate monitoring and control of the liquid temperature in the brewing head, improving the stability of coffee extraction temperature and the taste and quality of coffee, reducing the risk of temperature fluctuations caused by improper human operation, and extending the service life of the temperature sensing components.

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Abstract

The utility model relates to a brewing head structure, a coffee machine temperature control system and a coffee machine, and belongs to the field of coffee machines. The shell part is arranged on the infusion base; the liquid conveying piece is arranged on the liquid conveying base, a liquid inlet is formed in the liquid conveying piece, and the liquid conveying piece is used for being connected with an external boiler assembly; the infusion channel penetrates through the infusion base and the infusion piece, and the liquid inlet, the infusion channel and the liquid outlet are sequentially communicated; the temperature sensing assembly is arranged on the liquid conveying base and / or the liquid conveying piece, the temperature sensing assembly is connected with an external controller, the external controller can be connected with an external boiler assembly, and the temperature sensing assembly is used for detecting the temperature of liquid in the liquid conveying piece. According to the brewing head structure, the temperature sensing assembly is arranged on the infusion piece, so that the real temperature of the liquid in the brewing head can be accurately detected in real time, and it is ensured that coffee can reach the optimal extraction temperature.
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Description

Technical Field

[0001] This utility model relates to the field of coffee machines, and in particular to a brewing head structure, a coffee machine temperature control system, and a coffee machine. Background Technology

[0002] In traditional coffee brewing equipment, the temperature sensor (usually an NTC) is typically located on the boiler to monitor and control the temperature of the liquid inside. However, this setup has certain limitations: because there is a water path between the boiler and the brew head, heat is lost during the process of transporting the liquid from the boiler to the brew head. Therefore, the temperature sensor on the boiler cannot accurately reflect the temperature of the liquid at the brew head, which can easily lead to unstable or inaccurate coffee extraction temperatures, thus affecting the taste and quality of the coffee. Utility Model Content

[0003] Therefore, it is necessary to address the problem that the temperature sensing components of traditional coffee machines cannot accurately reflect the temperature of the liquid at the brew head, resulting in unstable or inaccurate coffee extraction temperature and affecting the taste and quality of coffee. This would require providing a brew head structure, a coffee machine temperature control system, and a coffee machine.

[0004] A brewing head structure includes: a liquid infusion base with a liquid outlet; a housing disposed on the liquid infusion base, the housing and the liquid infusion base forming a receiving cavity; a liquid infusion component disposed on the liquid infusion base, the liquid infusion component having a liquid inlet, the liquid infusion component being used to connect to an external boiler assembly; a liquid infusion channel penetrating the liquid infusion base and the liquid infusion component, the liquid inlet, the liquid infusion channel and the liquid outlet being sequentially connected; and a temperature sensing component disposed on the liquid infusion base and / or the liquid infusion component, the temperature sensing component being connectable to an external controller, the external controller being connectable to an external boiler assembly, the temperature sensing component being used to detect the temperature of the liquid inside the liquid infusion component, outputting a first signal when the temperature value detected by the temperature sensing component is lower than a preset value, and outputting a second signal when the temperature value detected by the temperature sensing component is higher than the preset value.

[0005] The first aspect of this application discloses a brewing head structure. By setting a temperature sensing component on the liquid infusion base, the actual temperature of the liquid inside the brewing head can be detected in real time and accurately, especially the actual temperature of coffee during the extraction process. This design helps ensure that the coffee reaches the optimal extraction temperature, thereby improving the taste and quality of the coffee. The temperature sensing component can be connected to an external controller, transmitting the detected temperature signal to the controller in real time. This allows the system to make timely adjustments based on the actual temperature, ensuring temperature stability during the extraction process. The external controller can receive the first and second signals output by the temperature sensing component and adjust the liquid temperature of the external boiler assembly according to these signals. This intelligent temperature control method not only improves the convenience of operation but also reduces the risk of temperature fluctuations caused by improper human operation. The housing is formed by the outer shell and the liquid infusion base, effectively utilizing space and making the entire brewing head structure more compact, facilitating the installation and use of other coffee machine components. The temperature sensing component is located within the housing, preventing interference and damage from the external environment, such as mechanical impact and dust contamination. This helps extend the service life of the temperature sensing component and maintain its stable performance. The proposed brewing head structure exhibits significant performance in terms of precise temperature detection, real-time temperature feedback, intelligent temperature control, optimized extraction process, and improved overall equipment performance.

[0006] In one embodiment, a heating component is further included, disposed on the infusion base, for heating the liquid inside the infusion base and / or the infusion device. The heating component allows the liquid to be heated to the user's desired temperature, making it highly practical.

[0007] In one embodiment, the infusion channel includes a first channel, a second channel, and a third channel. The first and second channels are staggered, and the extension direction of the second channel is the same as that of the third channel. The inlet, the first channel, the second channel, the third channel, and the outlet are sequentially connected. This sequential connection allows for unobstructed liquid flow. The fact that the second and third channels extend in the same direction ensures the stability of the liquid during flow, reduces turbulence and eddies, and improves liquid delivery efficiency.

[0008] In one embodiment, the infusion base is provided with the third channel, and the infusion component is located at the third channel. The infusion component is provided with the first channel and the second channel. The infusion component allows connection to an external boiler assembly, enabling the delivery of liquid heated by the external boiler assembly to both the infusion component and the infusion base, thus enhancing its practicality.

[0009] In one embodiment, a water distribution plate is further included. The water distribution plate is disposed on the infusion base and located at the end of the infusion base away from the infusion component. The water distribution plate has multiple water distribution holes, all of which are disposed on the water distribution plate and communicate with the outlet. The multiple water distribution holes on the water distribution plate ensure a uniform distribution of the output water flow, preventing concentrated water flow from impacting a single part of the coffee grounds, thereby improving the uniformity of extraction. The uniform water flow distribution and reduced impact force help the aroma and flavor compounds in the coffee grounds dissolve more fully in the water, improving extraction efficiency and coffee quality.

[0010] In one embodiment, a seal is further included, disposed on the infusion unit and / or the infusion base and located at the third channel. The seal is positioned between the infusion unit and the infusion base to seal the gap between them. By positioning the seal between the infusion unit and the infusion base, the gap between them is effectively sealed, preventing liquid leakage from the interface and ensuring the stability and safety of the brewing process. Furthermore, the good sealing performance helps maintain a stable temperature inside the brewing head, preventing heat loss through leaks and ensuring the extraction process takes place at the optimal temperature.

[0011] In one embodiment, the infusion device includes a first infusion section and a second infusion section. The second infusion section is disposed on the infusion base and has a second channel. The first infusion section is disposed on the second infusion section and is used to communicate with an external boiler assembly. The first infusion section has the inlet and the first channel. The arrangement of the first and second infusion sections provides a stable water flow path.

[0012] A coffee machine temperature control system includes: the above-described brewing head structure; a boiler assembly connected to the brewing head structure; and a controller electrically connected to both the temperature sensing component and the boiler assembly. The controller is capable of receiving a first signal and a second signal output by the temperature sensing component, and is capable of adjusting the temperature of the liquid inside the boiler assembly based on the received first signal and second signal.

[0013] The second aspect of this application discloses a coffee machine temperature control system. By directly integrating a temperature sensing component into the brew head structure and connecting it to a controller, the system can monitor the temperature of the liquid inside the brew head in real time and accurately. This design allows the controller to precisely adjust the temperature of the liquid inside the boiler assembly according to the actual temperature conditions, ensuring that the extraction process takes place within the optimal temperature range. Furthermore, the temperature sensing component can quickly detect changes in liquid temperature and promptly transmit the signal to the controller. The controller can then quickly respond to temperature changes and regulate the temperature of the liquid inside the boiler assembly, maintaining temperature stability during the extraction process.

[0014] In one embodiment, when the controller receives the first signal, it controls the boiler assembly to heat the liquid at a first power; when the controller receives the second signal, it controls the boiler assembly to heat the liquid at a second power, where the first power is greater than the second power. Upon receiving a signal from the temperature sensing component, the controller can quickly respond to temperature changes and adjust the power of the boiler assembly, rapidly adjusting the temperature of the liquid inside the filter to a preset value. This rapid response mechanism helps to quickly stabilize the liquid temperature inside the brewing head and maintain an optimal liquid temperature.

[0015] In one embodiment, when the temperature sensing component reaches a preset value, it outputs a third signal. The controller can receive the third signal output by the temperature sensing component. When the controller receives the third signal, it controls the boiler assembly to heat the liquid at a third power, which is less than the first power and greater than the second power. By controlling the boiler assembly to maintain a third power to heat the liquid when the temperature sensing component reaches the preset value, more precise control can be achieved when the temperature approaches the preset value, ensuring that the liquid temperature of the brewing head structure is close to the preset value and avoiding temperature overshoot or under-adjustment.

[0016] A coffee machine, comprising: the aforementioned coffee machine temperature control system.

[0017] The third aspect of this application discloses a coffee machine that can detect the actual extraction temperature of coffee through a temperature control system. This automated temperature control system simplifies the user's operation; users only need to manually input a preset value to adjust the liquid temperature in the brewing head. It offers a high degree of automation and a superior user experience. Attached Figure Description

[0018] Figure 1 This is a three-dimensional diagram of the brewing head structure;

[0019] Figure 2 This is the first exploded view of the brewing head structure;

[0020] Figure 3This is a second exploded view of the brewing head structure;

[0021] Figure 4 This is a cross-sectional view of the brewing head structure;

[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 This is the third exploded view of the brewing head structure;

[0024] Figure 7 This is a three-dimensional view of the infusion unit and the sealing unit.

[0025] The correspondence between the reference numerals and the component names is as follows:

[0026] 1. Infusion base, 101. Infusion outlet, 102. Infusion channel, 1021. First channel, 1022. Second channel, 1023. Third channel;

[0027] 2. Outer shell, 201. Receiving cavity;

[0028] 3 infusion components, 31 first infusion section, 32 second infusion section, 301 inlet;

[0029] 4. Temperature sensing components;

[0030] 5. Heating components;

[0031] 6-point water distribution plate, 601 water distribution holes.

[0032] 7. Sealing components. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0035] Example 1

[0036] like Figure 1-4As shown, this embodiment discloses a brewing head structure, including: a liquid infusion base 1, the liquid infusion base 1 having a liquid outlet 101; a housing 2, the housing 2 being disposed on the liquid infusion base 1, the housing 2 and the liquid infusion base 1 enclosing a receiving cavity 201; a liquid infusion component 3, the liquid infusion component 3 being disposed on the liquid infusion base 1, the liquid infusion component 3 having a liquid inlet 301, the liquid infusion component 3 being used to connect to an external boiler assembly; and a liquid infusion channel 102, the liquid infusion channel 102 penetrating the liquid infusion base 1 and the liquid infusion component 3, the liquid infusion channel 102 being used to connect the liquid infusion base 1 and the liquid infusion component 3. The infusion port 301, the infusion channel 102, and the outlet 101 are connected in sequence; a temperature sensing component 4 is disposed on the infusion base 1 and / or the infusion component 3, the temperature sensing component 4 can be connected to an external controller, the external controller can be connected to an external boiler assembly, the temperature sensing component 4 is used to detect the temperature of the liquid inside the infusion component 3, when the temperature value detected by the temperature sensing component 4 is lower than a preset value, a first signal is output, and when the temperature value detected by the temperature sensing component 4 is higher than the preset value, a second signal is output.

[0037] The first aspect of this application discloses a brewing head structure. A temperature sensing component 4 is installed on the liquid infusion base 1, which can accurately detect the real temperature of the liquid inside the brewing head in real time, especially the actual temperature of the coffee during the extraction process. This design helps ensure that the coffee reaches the optimal extraction temperature, thereby improving the taste and quality of the coffee. The temperature sensing component 4 can be connected to an external controller, transmitting the detected temperature signal to the controller in real time. This allows the system to make timely adjustments based on the actual temperature, ensuring temperature stability during the extraction process. The external controller can receive the first and second signals output by the temperature sensing component 4 and adjust the liquid temperature of the external boiler assembly based on these signals. This intelligent temperature control method not only improves the convenience of operation but also reduces the risk of temperature fluctuations caused by improper human operation. The outer shell 2 and the liquid infusion base 1 enclose a receiving cavity 201, effectively utilizing space and making the entire brewing head assembly 1 more compact, facilitating the installation and use of other coffee machine components. Because the temperature sensing component 4 is located within the receiving cavity 201, it is protected from interference and damage from the external environment, such as mechanical impact and dust contamination. This helps extend the service life of the temperature sensing component 4 and maintain its stable performance. The brewing head structure of this application has significant performance in terms of accurate temperature detection, real-time temperature feedback, intelligent temperature control, optimized extraction process, and improved overall equipment performance.

[0038] like Figure 2 and Figure 3As shown, in addition to the features of the above embodiments, this embodiment further includes a heating component 5, which is disposed on the infusion base 1 and is used to heat the liquid inside the infusion base 1 and / or the infusion device 3. The heating component 5 enables the liquid to be heated to the temperature required by the user, making it highly practical.

[0039] like Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the infusion channel 102 includes a first channel 1021, a second channel 1022, and a third channel 1023. The first channel 1021 and the second channel 1022 are staggered, and the extension direction of the second channel 1022 is the same as that of the third channel 1023. The inlet 301, the first channel 1021, the second channel 1022, the third channel 1023, and the outlet 101 are sequentially connected. The sequential connection of the inlet 301, the first channel 1021, the second channel 1022, the third channel 1023, and the outlet 101 allows for unobstructed liquid flow. The fact that the second channel 1022 and the third channel 1023 extend in the same direction ensures the stability of the liquid during flow, reduces the formation of turbulence and eddies, and improves liquid delivery efficiency.

[0040] like Figure 2-3 and Figure 5-6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the infusion base 1 is provided with the third channel 1023, the infusion component 3 is located at the third channel 1023, and the infusion component 3 is provided with the first channel 1021 and the second channel 1022. The infusion component 3 can be connected to an external boiler assembly, so that the liquid heated by the external boiler assembly can be delivered to the infusion component 3 and the infusion base 1, making it highly practical.

[0041] like Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further includes a water distribution plate 6, which is disposed on the infusion base 1 and located at the end of the infusion base 1 away from the infusion component 3. The water distribution plate 6 has multiple water distribution holes 601, all of which are disposed on the water distribution plate 6 and are connected to the outlet 101. The multiple water distribution holes 601 on the water distribution plate 6 ensure a uniform distribution of the output water flow, preventing concentrated water flow from impacting a certain part of the coffee grounds, thereby improving the uniformity of extraction. The uniform water flow distribution and reduced impact force help the aroma and flavor compounds in the coffee grounds dissolve more fully in the water, improving extraction efficiency and coffee quality.

[0042] like Figure 5-7 As shown, in addition to the features of the above embodiments, this embodiment further includes a sealing element 7, which is disposed on the infusion component 3 and / or the infusion base 1 and located at the third channel 1023. The sealing element 7 is located between the infusion component 3 and the infusion base 1, and is used to seal the gap between the infusion component 3 and the infusion base 1. By positioning the sealing element 7 between the infusion component 3 and the infusion base 1, the gap between them can be effectively sealed, preventing liquid leakage from the interface and ensuring the stability and safety of the brewing process. Moreover, the good sealing performance helps to maintain the temperature stability inside the brewing head, preventing heat loss through leakage points and ensuring that the extraction process is carried out at the optimal temperature.

[0043] like Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the infusion component 3 includes a first infusion section 31 and a second infusion section 32, the second infusion section 32 is disposed on the infusion base 1, the second infusion section 32 is provided with a second channel 1022, the first infusion section 31 is disposed on the second infusion section 32, the first infusion section 31 is used to communicate with an external boiler assembly, and the first infusion section 31 is provided with the inlet 301 and the first channel 1021. The arrangement of the first infusion section 31 and the second infusion section 32 provides a stable water flow delivery path.

[0044] Example 2

[0045] This embodiment discloses a coffee machine temperature control system, including: the above-mentioned brewing head structure; a boiler assembly, which is connected to the brewing head structure; and a controller, which is electrically connected to the temperature sensing component 4 and the boiler assembly respectively. The controller can receive the first signal and the second signal output by the temperature sensing component 4, and the controller can adjust the temperature of the liquid in the boiler assembly according to the received first signal and the second signal.

[0046] The second aspect of this application discloses a coffee machine temperature control system. By directly embedding a temperature sensing component 4 within the brewing head structure and connecting it to a controller, the system can monitor the temperature of the liquid inside the brewing head in real time and accurately. This design allows the controller to precisely adjust the temperature of the liquid inside the boiler assembly according to the actual temperature conditions, ensuring that the extraction process takes place within the optimal temperature range. Furthermore, the temperature sensing component 4 can quickly detect changes in liquid temperature and promptly transmit the signal to the controller. The controller can then quickly respond to temperature changes and regulate the temperature of the liquid inside the boiler assembly, maintaining temperature stability during the extraction process.

[0047] In addition to the features of the above embodiments, this embodiment further specifies that: when the controller receives the first signal, it controls the boiler assembly to heat the liquid at a first power; when the controller receives the second signal, it controls the boiler assembly to heat the liquid at a second power, wherein the first power is greater than the second power. After receiving the signal from the temperature sensing component 4, the controller can quickly respond to temperature changes and adjust the power of the boiler assembly, so that the temperature of the liquid inside the filter is quickly adjusted to a preset value. This rapid response mechanism helps to quickly stabilize the liquid temperature inside the brewing head and maintain the optimal liquid temperature.

[0048] In addition to the features of the above embodiments, this embodiment further specifies that: when the temperature sensing component 4 reaches a preset value, it outputs a third signal; the controller is able to receive the third signal output by the temperature sensing component 4; when the controller receives the third signal, it controls the boiler assembly to heat the liquid at a third power, where the third power is less than the first power and greater than the second power. By controlling the boiler assembly to maintain a third power to heat the liquid when the temperature sensing component 4 reaches the preset value, more precise control can be achieved when the temperature approaches the preset value, ensuring that the liquid temperature of the brewing head structure is close to the preset value and avoiding temperature overshoot or under-adjustment.

[0049] Example 3

[0050] This embodiment discloses a coffee machine, including the above-described coffee machine temperature control system.

[0051] The third aspect of this application discloses a coffee machine that can detect the actual extraction temperature of coffee through a temperature control system. This automated temperature control system simplifies the user's operation; users only need to manually input a preset value to adjust the liquid temperature in the brewing head. It offers a high degree of automation and a superior user experience.

[0052] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A brewing head structure, characterized in that, include: An infusion base (1) is provided with an outlet (101); The outer casing (2) is disposed on the infusion base (1), and the outer casing (2) and the infusion base (1) enclose a receiving cavity (201); Infusion component (3), the infusion component (3) is disposed on the infusion base (1), the infusion component (3) is provided with an inlet (301), the infusion component (3) is used to connect with an external boiler assembly; An infusion channel (102) extends through the infusion base (1) and the infusion component (3), and the inlet (301), the infusion channel (102), and the outlet (101) are connected in sequence. A temperature sensing component (4) is disposed on the infusion base (1) and / or the infusion unit (3). The temperature sensing component (4) can be connected to an external controller, which can be connected to an external boiler assembly. The temperature sensing component (4) is used to detect the temperature of the liquid inside the infusion unit (3). When the temperature value detected by the temperature sensing component (4) is lower than a preset value, a first signal is output. When the temperature value detected by the temperature sensing component (4) is higher than the preset value, a second signal is output.

2. The brewing head structure according to claim 1, characterized in that, It also includes a heating component (5) disposed on the infusion base (1) and the heating component (5) is used to heat the liquid inside the infusion base (1) and / or the infusion device (3).

3. The brewing head structure according to claim 1, characterized in that, The infusion channel (102) includes a first channel (1021), a second channel (1022), and a third channel (1023). The first channel (1021) and the second channel (1022) are arranged alternately. The extension direction of the second channel (1022) is the same as that of the third channel (1023). The inlet (301), the first channel (1021), the second channel (1022), the third channel (1023), and the outlet (101) are connected in sequence.

4. The brewing head structure according to claim 3, characterized in that, The infusion base (1) is provided with the third channel (1023), the infusion component (3) is located at the third channel (1023), and the infusion component (3) is provided with the first channel (1021) and the second channel (1022).

5. The brewing head structure according to claim 4, characterized in that, It also includes a water distribution plate (6), which is disposed on the infusion base (1) and located at the end of the infusion base (1) away from the infusion component (3). The water distribution plate (6) is provided with water distribution holes (601). There are multiple water distribution holes (601) and they are all disposed on the water distribution plate (6). All of the multiple water distribution holes (601) are connected to the liquid outlet (101). And / or may also include a seal (7) disposed on the infusion unit (3) and / or the infusion base (1) and located at the third channel (1023), the seal (7) being located between the infusion unit (3) and the infusion base (1), the seal (7) being used to seal the gap between the infusion unit (3) and the infusion base (1).

6. The brewing head structure according to claim 3, characterized in that, The infusion unit (3) includes a first infusion section (31) and a second infusion section (32). The second infusion section (32) is disposed on the infusion base (1) and has a second channel (1022). The first infusion section (31) is disposed on the second infusion section (32) and is used to communicate with an external boiler assembly. The first infusion section (31) has the inlet (301) and the first channel (1021).

7. A coffee machine temperature control system, characterized in that, include: The brewing head structure as described in any one of claims 1-6; A boiler assembly, wherein the boiler assembly is connected to the brewing head structure; The controller is electrically connected to the temperature sensing component (4) and the boiler assembly respectively. The controller can receive the first signal and the second signal output by the temperature sensing component (4). The controller can adjust the temperature of the liquid in the boiler assembly according to the received first signal and the second signal.

8. The coffee machine temperature control system according to claim 7, characterized in that, When the controller receives the first signal, it controls the boiler assembly to heat the liquid with a first power. When the controller receives the second signal, it controls the boiler assembly to heat the liquid with a second power, wherein the first power is greater than the second power.

9. The coffee machine temperature control system according to claim 8, characterized in that, When the temperature sensing component (4) reaches a preset value, it outputs a third signal. The controller can receive the third signal output by the temperature sensing component (4). When the controller receives the third signal, it controls the boiler component to heat the liquid with a third power. The third power is less than the first power and greater than the second power.

10. A coffee machine, characterized in that, include: The coffee machine temperature control system as described in any one of claims 7-9.