Coffee maker

Abstract

The utility model provides a coffee machine relates to coffee machine technical field, coffee machine includes: water injection pump, extraction mechanism, liquid receiving mechanism, controller, first sensor and second sensor, the extraction mechanism sets up in the liquid outlet of water injection pump, liquid receiving mechanism sets up in the liquid outlet of extraction mechanism, first sensor sets up in the extraction mechanism, and the extraction mechanism includes: drip assembly or extraction assembly, second sensor sets up in the liquid receiving mechanism, the controller is connected with first sensor, second sensor and water injection pump electricity respectively. The present application has realized the automation control of water injection speed in the extraction process, has guaranteed the extraction effect.

Description

Technical Field

[0001] This application relates to the field of coffee machine technology, and more specifically, to a coffee machine. Background Technology

[0002] In coffee brewing, water temperature, water volume, and extraction pressure are key factors determining the coffee's flavor. Current technology has a low level of automation in controlling water flow, making precise flow adjustment difficult and leading to insufficient flow stability, ultimately affecting the coffee extraction results. Utility Model Content

[0003] In view of the above, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a coffee machine. This utility model provides the following technical solution: In a first aspect, this application provides a coffee machine, comprising: a water pump, an extraction mechanism, a liquid receiving mechanism, a controller, a first sensor, and a second sensor; the extraction mechanism is disposed at the liquid outlet end of the water pump, and the liquid receiving mechanism is disposed at the liquid outlet end of the extraction mechanism; the first sensor is disposed at the extraction mechanism, and the extraction mechanism includes: a dripping component or an extraction component; the second sensor is disposed at the liquid receiving mechanism; the controller is electrically connected to the first sensor, the second sensor, and the water pump respectively.

[0004] In one embodiment, the dripping assembly includes a filter cup and a filter cup holder, the filter cup being placed on the filter cup holder; the first sensor is a first weight sensor, the weight sensor being disposed on the filter cup holder.

[0005] In one embodiment, the extraction assembly includes an extraction head, and the first sensor is a pressure sensor disposed on the inner wall of the extraction head.

[0006] In one embodiment, the liquid receiving mechanism includes a liquid receiving cup and a liquid receiving cup base, the liquid receiving cup being placed on the liquid receiving cup base; the second sensor is a second weight sensor, and the pressure sensor is disposed below the liquid receiving cup base.

[0007] In one embodiment, the weight of the liquid receiving cup is a preset weight.

[0008] In one embodiment, the water injection pump includes a pump body and a water injection valve, the water injection valve being electrically connected to the controller, and the water injection valve also being connected to the pump body via a water injection pipe.

[0009] In one embodiment, the outlet of the pump body is located above the inlet end of the extraction mechanism, and the receiving cup is placed below the outlet end of the extraction mechanism. In one embodiment, the coffee machine further includes a flow meter disposed at the outlet of the pump body.

[0010] In one embodiment, the coffee machine further includes a display screen electrically connected to the controller. In one embodiment, the coffee machine further includes a buzzer electrically connected to the controller.

[0011] The coffee machine provided in this application includes: a water pump, an extraction mechanism, a liquid receiving mechanism, a controller, a first sensor, and a second sensor. The extraction mechanism is disposed at the liquid outlet of the water pump, and the liquid receiving mechanism is disposed at the liquid outlet of the extraction mechanism. The first sensor is disposed at the extraction mechanism, which includes a dripping component or an extraction component. The second sensor is disposed at the liquid receiving mechanism. The controller is electrically connected to the first sensor, the second sensor, and the water pump. Based on the water pump, extraction mechanism, and liquid receiving mechanism, and in conjunction with the first and second sensors, this application acquires sensor data during the water injection, extraction, and liquid receiving processes and sends it to the controller. The controller dynamically adjusts the water injection speed based on the acquired sensor data, thereby achieving automated control of the water injection speed during the extraction process and ensuring the extraction effect.

[0012] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0013] 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.

[0014] Figure 1 A schematic diagram of the structure of a coffee machine provided in an embodiment of this application is shown; Figure 2 Another structural schematic diagram of the coffee machine provided in an embodiment of this application is shown.

[0015] Explanation of key component symbols: 100-Coffee machine; 110-Water pump; 120-Extraction mechanism; 130-Liquid receiving mechanism; 140-Controller; 150-First sensor; 160-Second sensor. Detailed Implementation

[0016] 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.

[0017] 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.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] Example 1 This application provides a coffee machine 100. For details, please refer to [link / reference]. Figure 1 or Figure 2 The coffee machine 100 includes: a water pump 110, an extraction mechanism 120, a liquid receiving mechanism 130, a controller 140, a first sensor 150, and a second sensor 160; the extraction mechanism 120 is disposed at the liquid outlet end of the water pump 110, and the liquid receiving mechanism 130 is disposed at the liquid outlet end of the extraction mechanism 120. The first sensor 150 is disposed on the extraction mechanism 120, which includes a dripping component or an extraction component; the second sensor 160 is disposed on the liquid receiving mechanism 130; and the controller 140 is electrically connected to the first sensor 150, the second sensor 160 and the water injection pump 110 respectively.

[0020] In this embodiment, the water pump 110 is used to inject water into the extraction mechanism 120; the extraction mechanism 120 includes a drip assembly or an extraction assembly for completing coffee extraction. When the coffee machine 100 is a drip coffee machine, the extraction mechanism 120 includes a drip assembly; when the coffee machine 100 is an espresso machine, the extraction mechanism 120 includes an extraction assembly. The liquid receiving mechanism 130 is used to receive the coffee liquid extracted by the extraction mechanism 120. The first sensor 150 and the second sensor 160 are used to acquire key data in the extraction process and transmit the key data to the controller 140. The controller 140 sends adjustment commands to the water pump 110 according to the acquired key data to accurately control the water injection process and ensure stable coffee extraction results. The key data in the extraction process include the weight of the coffee liquid in the liquid receiving cup, the weight of the liquid in the filter cup included in the drip assembly, and the extraction pressure in the extraction head included in the extraction assembly.

[0021] In one embodiment, the dripping assembly includes a filter cup and a filter cup holder, the filter cup being placed on the filter cup holder; the first sensor 150 is a first weight sensor, the weight sensor being disposed on the filter cup holder.

[0022] In this embodiment, please refer to Figure 1 When the coffee machine 100 is a drip coffee machine, the extraction mechanism 120 includes a drip assembly. The drip assembly is a key structure for coffee extraction, mainly consisting of two parts: first, a filter cup for holding coffee powder and filtering the coffee liquid. It typically adopts a funnel-shaped design with fine filter holes at the bottom or is used with filter paper. It can both hold the coffee powder and allow the extracted coffee liquid to drip slowly through the filter holes; second, a filter cup holder for supporting the filter cup. Its structure is adapted to the shape of the filter cup, stably supporting the filter cup and fixing it in a specific position on the coffee machine. In use, the filter cup can be placed directly and stably on the filter cup holder. The two work together to form a stable extraction support structure, providing a reliable physical basis for subsequent water pump injection, sufficient contact between the water flow and coffee powder for extraction, and smooth dripping of the coffee liquid to the receiving mechanism below.

[0023] The first sensor 150, specifically a first weight sensor, is configured on the extraction mechanism 120. Its installation position is chosen on the filter cup holder, not in direct contact with the inside of the filter cup. Instead, it transmits weight signals through contact between the holder and the filter cup, avoiding liquid contamination of the sensor and ensuring the stability of weight sensing. When the filter cup is stably placed on the filter cup holder, the first weight sensor captures the total weight of the filter cup in real time. This total weight includes three core components: first, the inherent weight of the filter cup itself (such as the weight of an empty glass or plastic filter cup, a factory-preset fixed value); second, the weight of the coffee powder pre-added inside the filter cup (added by the user according to needs, the initial value must be recorded before extraction); and third, the weight of the water injected into the filter cup by the water pump through the pipe during extraction (dynamically changing with the water injection process). By continuously collecting filter cup liquid weight data at different time points and calculating the ratio of the weight difference between adjacent time points to the time interval, the filter cup liquid weight change rate can be further obtained. This provides crucial data support for the controller to adjust the water injection speed of the water pump and determine whether there is a risk of liquid accumulation in the filter cup.

[0024] The first sensor 150 is a first weight sensor, specifically installed on the filter cup holder. When the filter cup is placed on the filter cup holder, the first weight sensor can directly sense the total weight of the filter cup, including: the weight of the filter cup itself, the weight of the coffee grounds inside the filter cup, and the weight of the water poured into the filter cup. By installing a weight sensor on the filter cup holder, changes in the weight of the filter cup can be monitored in real time, accurately obtaining the weight of the liquid inside the filter cup (after deducting the weight of the filter cup itself and the initial weight of the coffee grounds).

[0025] In one embodiment, the extraction assembly includes an extraction head, and the first sensor 150 is a force sensor, wherein the pressure sensor is disposed on the inner wall of the extraction head.

[0026] In this embodiment, please refer to Figure 2 When the coffee machine 100 is an espresso machine, the extraction mechanism 120 includes an extraction component, specifically, an extraction head. The first sensor 150 is a pressure sensor, disposed on the inner wall of the extraction head. During high-pressure extraction, a stable extraction pressure is formed inside the extraction head. The pressure sensor on the inner wall can capture this pressure data in real time. For example, when the water pump 110 injects water into the extraction head, the pressure generated by the water flow penetrating the coffee puck directly acts on the inner wall of the extraction head. The pressure sensor converts the pressure signal into an electrical signal and transmits it to the controller 140. By analyzing this pressure data, the controller 140 can determine whether the current extraction pressure has reached the preset extraction pressure and adjust the output power of the water pump 110 accordingly to ensure stable extraction pressure, thereby ensuring the consistency of coffee taste.

[0027] In one embodiment, the liquid receiving mechanism 130 includes a liquid receiving cup and a liquid receiving cup base, the liquid receiving cup being placed on the liquid receiving cup base; the second sensor 160 is a second weight sensor, and the pressure sensor is disposed below the liquid receiving cup base.

[0028] In this embodiment, the receiving mechanism 130 includes a receiving cup for receiving coffee liquid filtered from the extraction mechanism 120, and a receiving cup base for supporting the receiving cup. A second sensor 160, specifically a second weight sensor, is mounted on the receiving mechanism 130 below the receiving cup base. When the receiving cup is placed on the receiving cup base, the second weight sensor below the base can accurately capture the real-time weight of the coffee liquid in the receiving cup by sensing the overall weight change of the receiving cup and base (the initial empty weight of the receiving cup and base needs to be deducted beforehand). This avoids damage or contamination caused by direct contact between the second weight sensor and the coffee liquid, while continuously monitoring the cumulative weight of the coffee liquid, providing direct and reliable data support for subsequent calculations of the dispensing speed, actual extraction volume, and determining whether a preset extraction volume has been reached to trigger the water pump 110 to stop.

[0029] In one embodiment, the weight of the liquid receiving cup is a preset weight.

[0030] Understandably, the preset weight is usually measured and set by the manufacturer before the coffee machine 100 leaves the factory, based on the material, size, and processing technology of the receiving cup. During subsequent use, when the second weight sensor monitors the total weight of the receiving cup, the controller 140 automatically subtracts this preset empty cup weight from the monitored total weight. This accurately calculates the actual weight of coffee liquid held in the cup, providing a precise data basis for calculating the dispensing speed and determining the extraction endpoint, and preventing the cup's own weight from interfering with the statistical results of the coffee liquid weight.

[0031] In one embodiment, the water injection pump 110 includes a pump body and a water injection valve, the water injection valve being electrically connected to the controller 140, and the water injection valve also being connected to the water injection valve via a water injection pipe.

[0032] It can be understood that the main components of the water pump 110 are: a pump body responsible for providing water flow force, and a water injection valve used to control the water flow interruption or flow rate. The water injection valve establishes an electrical connection with the controller 140 of the coffee machine 100, receiving control signals from the controller 140 to adjust the opening degree, thereby regulating the water injection speed. On the other hand, the water injection valve is also connected to the pump body through a water injection pipe, forming a complete water flow path of "pump body → water injection valve → water injection pipe → extraction mechanism 120". When the pump body starts pumping water, the water flow first passes through the water injection valve, and then is delivered to the filter cup or extraction head through the water injection pipe. The opening and closing state or degree of opening of the water injection valve directly determines the final water volume and flow rate flowing to the extraction mechanism 120, providing hardware support for the controller 140 to achieve precise control of the water injection speed by adjusting the valve.

[0033] It should be noted that if the coffee machine 100 is an espresso machine, the water flow needs to be heated by a heating boiler before it reaches the extraction mechanism 120. The heating boiler is not shown in the figure.

[0034] In one embodiment, the outlet of the pump body is located above the inlet end of the extraction mechanism 120, and the receiving cup is placed below the outlet end of the extraction mechanism 120.

[0035] It is understandable that the pump's outlet is installed directly above or above the extraction mechanism 120, so that the water output from the pump flows naturally and stably into the extraction mechanism 120 under the influence of gravity, directly acting on the coffee grounds. Meanwhile, the receiving cup for collecting the coffee liquid is placed directly below the extraction mechanism 120: when the water completes its mixing and extraction with the coffee grounds within the extraction mechanism 120, the resulting coffee liquid will drip naturally through the extraction mechanism 120. The receiving cup below can accurately catch all the dripping coffee liquid, ensuring that there is no leakage or contamination of coffee liquid during the extraction process, guaranteeing the smoothness and practicality of the extraction operation.

[0036] In one embodiment, the coffee machine 100 further includes a flow meter disposed at the outlet of the pump body.

[0037] In this embodiment, the coffee machine 100 also includes a flow meter for monitoring water flow data, which is installed at the outlet of the pump body. Since the outlet of the pump body is the key node for water flow from the pump body to the extraction mechanism 120, placing the flow meter here allows for the most direct and real-time capture of the flow rate information of the pump body's output water (i.e., the amount of water flowing per unit time). The controller 140 can quickly calculate the current actual water injection speed of the water pump 110 by receiving the flow data transmitted by the flow meter, and then link it with other monitoring data such as the liquid output speed and the rate of change of liquid weight in the filter cup to more accurately adjust the water injection valve or the working state of the pump body, ensuring that the water injection speed always meets the extraction requirements, avoiding water injection that is too fast or too slow due to unstable pump output, and providing additional data support for the stability of coffee extraction.

[0038] In one embodiment, the coffee machine 100 further includes a display screen electrically connected to the controller 140.

[0039] In this embodiment, the coffee machine 100 also includes a display screen for human-computer interaction and information display. This screen can receive and display various data transmitted by the controller 140 in real time, such as the current water pouring speed, filter cup liquid weight, coffee liquid weight in the receiving cup, actual extraction volume, and other key extraction parameters. It can also display the working status of the coffee machine 100, such as extraction in progress, standby, or completed. Furthermore, it can provide fault prompts, such as insufficient water, allowing users to intuitively grasp the extraction process. On the other hand, the display screen can also typically serve as an operation input terminal. Users can set preset extraction volumes, adjust preset difference ranges, and other parameters through the display screen. These operation commands are transmitted to the controller 140, which adjusts the working logic of components such as the water pump 110 according to the commands to achieve personalized extraction control. In one embodiment, the coffee machine 100 further includes a buzzer electrically connected to the controller 140.

[0040] The core function of the buzzer is to convey key information to the user through sound signals. Its triggering logic is determined by the controller 140 based on the actual working conditions. For example, when the controller 140 detects that the actual extraction volume has reached the preset value and the extraction process is completed normally, it will send a signal to trigger the buzzer to emit a prompt sound (such as a short "beep") to remind the user that the coffee has been made. If an abnormal situation is detected, such as the liquid weight in the filter cup exceeding the safety threshold or the water tank being short of water, causing the water pump 110 to malfunction, the controller 140 will also instruct the buzzer to emit different sound signals (such as a continuous long tone) to prompt the user to deal with the fault in time.

[0041] The coffee machine 100 provided in this application embodiment includes: a water pump 110, an extraction mechanism 120, a liquid receiving mechanism 130, a controller 140, a first sensor 150, and a second sensor 160. The extraction mechanism 120 is disposed at the liquid outlet of the water pump, and the liquid receiving mechanism 130 is disposed at the liquid outlet of the extraction mechanism. The first sensor 150 is disposed at the extraction mechanism 120, and the extraction mechanism 120 includes a dripping component or an extraction component. The second sensor 160 is disposed at the liquid receiving mechanism 130. The controller 140 is electrically connected to the first sensor 150, the second sensor 160, and the water pump 110. Based on the water pump 110, the extraction mechanism 120, and the liquid receiving mechanism 130, and in conjunction with the first sensor 150 and the second sensor 160, this application acquires sensor data during the water injection, extraction, and liquid receiving processes and sends it to the controller 140. The controller 140 dynamically adjusts the water injection speed according to the acquired sensor data, thereby achieving automated control of the water injection speed during the extraction process and ensuring the extraction effect.

[0042] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. 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 modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A coffee machine, characterized in that, include: Water injection pump, extraction mechanism, liquid receiving mechanism, controller, first sensor and second sensor; The extraction mechanism is located at the liquid outlet of the water injection pump, and the liquid receiving mechanism is located at the liquid outlet of the extraction mechanism; The first sensor is disposed on the extraction mechanism, which includes a dripping component or an extraction component; The second sensor is disposed on the liquid receiving mechanism; the controller is electrically connected to the first sensor, the second sensor and the water injection pump respectively.

2. The coffee machine according to claim 1, characterized in that, The dripping assembly includes: a filter cup and a filter cup holder, wherein the filter cup is placed on the filter cup holder; The first sensor is a first weight sensor, which is mounted on the filter cup support.

3. The coffee machine according to claim 2, characterized in that, The extraction assembly includes an extraction head, and the first sensor is a pressure sensor disposed on the inner wall of the extraction head.

4. The coffee machine according to claim 3, characterized in that, The liquid receiving mechanism includes: a liquid receiving cup and a liquid receiving cup base, wherein the liquid receiving cup is placed on the liquid receiving cup base; The second sensor is a second weight sensor, and the pressure sensor is located below the liquid receiving cup base.

5. The coffee machine according to claim 4, characterized in that, The weight of the receiving cup is a preset weight.

6. The coffee machine according to claim 5, characterized in that, The water injection pump includes a pump body and a water injection valve. The water injection valve is electrically connected to the controller and is also connected to the pump body via a water injection pipe.

7. The coffee machine according to claim 6, characterized in that, The outlet of the pump body is located above the inlet of the extraction mechanism, and the receiving cup is placed below the outlet of the extraction mechanism.

8. The coffee machine according to claim 7, characterized in that, The coffee machine also includes a flow meter, which is located at the outlet of the pump body.

9. The coffee machine according to claim 8, characterized in that, The coffee machine also includes a display screen, which is electrically connected to the controller.

10. The coffee machine according to claim 9, characterized in that, The coffee machine also includes a buzzer, which is electrically connected to the controller.

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