Brewing unit with temperature detection element and coffee machine
By installing a temperature detection element at the water outlet of the coffee machine's brewing unit, the problem of heat loss during the flow of hot water to the brewing chamber is solved, thus achieving accurate water temperature measurement, reducing temperature errors, and ensuring the accuracy of the water temperature for coffee brewing.
Patent Information
- Application Number
- CN202422822323.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-19
AI Technical Summary
In existing coffee machines, the heat is absorbed by internal components as hot water flows into the brewing chamber, resulting in a large error between the water temperature reported by the temperature sensor and the actual outflow temperature.
Temperature sensing elements are installed in the brewing unit of the coffee machine, especially at the water outlet channel to directly measure the water temperature, including the inlet pipe, outlet pipe and reversing block. The water temperature is accurately measured by the temperature sensing element in the reversing block.
This reduces the error between the water temperature measured by the temperature sensing element and the actual outflow water temperature, ensuring the accuracy of the water temperature during coffee brewing.
Smart Images

Figure CN223516130U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coffee machine field especially, it is a kind of brewing unit and coffee machine with temperature detection element. BACKGROUND
[0002] Coffee machine is the equipment for making coffee, mainly including extraction device, water tank, heating element, water pump and brewing unit, and water temperature is an important factor to determine the taste of brewed coffee.
[0003] The Chinese patent with publication number CN209915734U discloses a coffee machine, including body, water tank, heating tube and brewing chamber, the water tank is arranged on the body and is used for containing water to be heated, the heating tube for heating the water provided by the water tank is arranged on the body, the water detection device for detecting the water amount in the water tank is arranged in the water tank, and the temperature sensor for detecting the water temperature in the heating tube is arranged on the heating tube.
[0004] In the above structure, the temperature sensor arranged on the heating tube can detect the water temperature of hot water flowing out of the water tank and heated by the heating tube, and the hot water heated by the heating tube will gradually flow to the brewing chamber, but in the process of hot water flowing to the brewing chamber, the heat of hot water heated by the heating tube will be absorbed by the components in the coffee machine, resulting in a large error between the actual water temperature flowing out of the brewing chamber and the water temperature fed back by the temperature sensor. UTILITY MODEL CONTENTS
[0005] The utility model provides a brewing unit and coffee machine with temperature detection element and can reduce the error of detected water temperature, aiming at the shortcomings that the heat of hot water is absorbed by the components in the coffee machine in the process of flowing to the brewing chamber, resulting in a large error between the actual temperature flowing out of the brewing chamber and the water temperature fed back by the temperature sensor.
[0006] To solve the above technical problem, the utility model is solved by the following technical scheme:
[0007] A brewing unit with temperature detection element, including brewing unit body, brewing unit body includes water inlet communicated with hot water source, water outlet for water outlet and brewing unit arranged in brewing unit body, water outlet and brewing unit are provided with water outlet channel for guiding water flow of water outlet to brewing unit, and temperature detection element for detecting the temperature of water flow flowing into water outlet channel is arranged on brewing unit body.
[0008] With the above scheme, the temperature detecting element arranged at the water outlet channel can measure the water temperature of the water flow flowing out of the water outlet channel, and since the water flow directly flows into the water brewing unit after flowing out of the water outlet channel to brew coffee, the temperature error between the water temperature measured by the temperature detecting element arranged at the water outlet channel and the actual water temperature is small.
[0009] Preferably, a mounting hole is arranged on the brewing unit body and penetrates the water outlet channel, and the temperature detecting element is arranged in the mounting hole.
[0010] With the above scheme, the mounting hole arranged on the brewing unit body and penetrating the water outlet channel can facilitate the installation of the temperature detecting element, so that the temperature detecting element can measure the temperature of the water flow flowing out of the water outlet channel.
[0011] Preferably, the water outlet channel comprises a water inlet pipe for vertically upwardly leading the water flow and a water outlet pipe for vertically downwardly leading the water flow to the brewing unit, and a reversing component for reversing the water flow flowing into the water inlet pipe to the water outlet pipe is arranged on the brewing unit body.
[0012] Preferably, the reversing component comprises a reversing block arranged above the brewing unit body, a water inlet flow channel communicating with the water inlet pipe, a water outlet flow channel communicating with the water outlet pipe, and a connecting flow channel for connecting the water inlet flow channel and the water outlet flow channel are arranged in the reversing block, and the mounting hole is arranged on the reversing block and penetrates the water outlet flow channel.
[0013] With the above scheme, the water inlet flow channel arranged in the reversing block can be in butt joint with the water inlet pipe in the brewing unit body, the water outlet flow channel arranged in the reversing block can be in butt joint with the water outlet pipe in the brewing unit body, and the connecting flow channel can connect the water inlet flow channel and the water outlet flow channel, thereby reversing the water flow flowing into the brewing unit body, and the mounting hole arranged on the reversing block and penetrating the water outlet flow channel can enable the temperature detecting element to detect the temperature of the water flow flowing into the water outlet flow channel.
[0014] Preferably, a anti-disengagement component for reducing the disengagement of the temperature detecting element arranged in the mounting hole from the mounting hole is arranged on the reversing block.
[0015] Preferably, the anti-disengagement component comprises an anti-disengagement plate arranged on the reversing block and close to the mounting hole, one end of the anti-disengagement plate is hinged to the reversing block, and when the anti-disengagement plate is rotated to a certain angle, the end of the mounting hole away from the water outlet flow channel is closed, and a limiting component for limiting the position of the anti-disengagement plate when the anti-disengagement plate is flipped to close the mounting hole is arranged on the reversing block.
[0016] The anti-disengagement plate hingedly arranged on the reversing block can close the mounting hole away from the water outlet channel after rotation, thereby reducing the probability of the temperature detecting element installed in the mounting hole from disengaging from the mounting hole, and the limiting component can limit the position of the anti-disengagement plate when the anti-disengagement plate is rotated to close the mounting hole, so that the anti-disengagement plate remains in the state of closing the mounting hole.
[0017] Preferably, the limiting component comprises a limiting block arranged on the reversing block at the end of the mounting hole away from the anti-disengagement plate, the limiting block is provided with a limiting slot for partial insertion of the anti-disengagement plate when the anti-disengagement plate is rotated to close the mounting hole, and an elastic limiting plate is arranged on the side wall of the limiting slot to limit the anti-disengagement plate inserted into the limiting slot.
[0018] The limiting slot arranged on the limiting block can be partially inserted by the anti-disengagement plate after rotation, and when the anti-disengagement plate is rotated to the limiting slot, the elastic limiting plate on the side wall of the limiting slot is first abutted. At this time, continue to rotate the anti-disengagement plate, and the elastic limiting plate will be deformed under the extrusion of the anti-disengagement plate, so that the anti-disengagement plate inserted into the limiting slot will close the mounting hole. When the anti-disengagement plate is inserted into the limiting slot and separated from the elastic limiting plate, the elastic limiting plate will recover at this time, thereby limiting the position of the anti-disengagement plate and reducing the probability of automatic rotation and disengagement from the limiting slot.
[0019] Preferably, a positioning component is arranged between the reversing block and the body of the brewing unit to position the installation of the reversing block.
[0020] Preferably, the positioning component comprises a positioning slot arranged on the upper surface of the brewing unit body for positioning insertion of the bottom of the reversing block.
[0021] The positioning slot arranged on the upper surface of the brewing unit body can be positioned when the reversing block is installed on the brewing unit body, thereby facilitating the relative connection between the water inlet channel in the reversing block and the water inlet pipeline in the brewing unit body, and the relative connection between the water outlet channel in the reversing block and the water outlet pipeline in the brewing unit body when the reversing block is installed on the brewing unit body.
[0022] A coffee machine comprises a coffee machine body, and the coffee machine body comprises the brewing unit with the temperature detecting element as described above.
[0023] The brewing unit with the temperature detecting element is arranged on the coffee machine body, thereby reducing the error between the water temperature of the water flow measured by the temperature detecting element and the actual water temperature when the water flow flows out to brew coffee.
[0024] The utility model discloses a temperature detection element is arranged at the water outlet channel, and the temperature detection element can measure the water temperature of the water flow that flows out from the water outlet channel, and the temperature error between the water temperature measured by the temperature detection element and the actual water temperature is small. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 is the axonometric view of a brewing unit with temperature detection element in the embodiment;
[0026] Figure 2 is Figure 1 is the enlarged view of A in the figure;
[0027] Figure 3 is the axonometric view of a brewing unit with temperature detection element in the embodiment when the temperature detection element is separated from the mounting hole;
[0028] Figure 4 is Figure 3 is the enlarged view of B in the figure;
[0029] Figure 5 is the exploded view of a brewing unit body and a reversing block in the embodiment;
[0030] Figure 6 is the sectional view of a brewing unit body in the embodiment;
[0031] Figure 7 is Figure 6 is the enlarged view of C in the figure;
[0032] Figure 8 is Figure 6 is the enlarged view of D in the figure;
[0033] Figure 9 is the axonometric view of a brewing unit body in the embodiment;
[0034] Figure 10 is the axonometric view of a coffee machine in the embodiment;
[0035] Figure 11 is the exploded view of a coffee machine in the embodiment;
[0036] Figure 12 is Figure 11 is the enlarged view of E in the figure.
[0037] The part names referred to by the numbers in the above drawings are as follows: 1, brewing unit body; 2, water inlet; 3, water outlet; 4, temperature detection element; 5, water inlet pipe; 6, water outlet pipe; 7, water inlet flow channel; 8, water outlet flow channel; 9, reversing block; 10, mounting hole; 11, anti-dropping plate; 12, limiting block; 13, limiting groove; 14, elastic limiting plate; 15, coffee machine body; 16, connecting flow channel; 17, positioning groove; 18, brewing unit. DETAILED DESCRIPTION
[0038] The utility model will be described in further detail below in combination with the drawings and embodiments.
[0039] EMBODIMENT
[0040] A brewing unit with a temperature detection element and a coffee machine, referring to Figures 1-2 , Figures 9-12 , including coffee machine body 15, brewing unit body 1 is arranged in coffee machine body 15, brewing unit body 1 includes the water inlet 2 that is arranged in brewing unit body 1 and is communicated with hot water source, the water outlet 3 for water outlet and brewing unit 18, the water outlet 3 and brewing unit 18 are provided with the water outlet channel that the water flow that brewing unit 18 is led to the water outlet 3 out between, the temperature detection element 4 that the water flow that flows into the water outlet channel is detected is provided on brewing unit body 1.
[0041] Referring to Figures 3-8 , the mounting hole 10 that is penetrated with the water outlet channel is provided on brewing unit body 1, and the temperature detection element 4 is arranged in the mounting hole 10, and the water outlet channel includes the water inlet pipe 5 that water flow is led vertically upwards and the water outlet pipe 6 that water flow is led vertically downwards to brewing unit 18, and the reversing component that the water flow that flows into the water inlet pipe 5 is reversed and led to the water outlet pipe 6 is provided on brewing unit body 1, and the reversing block 9 is arranged above brewing unit body 1, and the water inlet flow channel 7 that is communicated with the water inlet pipe 5, the water outlet flow channel 8 that is communicated with the water outlet pipe 6 and the connecting flow channel 16 for communicating the water inlet flow channel 7 and the water outlet flow channel 8 are provided in the reversing block 9, and the mounting hole 10 is arranged on the reversing block 9 and is penetrated with the water outlet flow channel 8.
[0042] Referring to Figures 1-4The anti-detaching part is provided on the reversing block 9 near the installation hole 10 and includes an anti-detaching plate 11 hinged to the reversing block 9 at one end, which closes the installation hole 10 away from the water outlet channel 8 when rotated to a certain angle, and a limiting part provided on the reversing block 9 at the end of the installation hole 10 away from the anti-detaching plate 11, which includes a limiting block 12 in which a limiting slot 13 is provided for the partial insertion of the anti-detaching plate 11 when the anti-detaching plate 11 is rotated to close the installation hole 10, and an elastic limiting plate 14 provided on the side wall of the limiting slot 13 to limit the anti-detaching plate 11 inserted into the limiting slot 13.
[0043] Reference Figure 5 The positioning part is provided on the upper surface of the brewing unit body 1 for the positioning insertion of the bottom of the reversing block 9.
[0044] Specific measurement process: when the water flow enters the water inlet channel 7 in the reversing block 9 from the water outlet 3, the water flow will flow into the water outlet channel 8 from the connecting channel 16, and the temperature detection element 4 provided in the installation hole 10 will measure the water temperature of the water flow flowing into the water outlet channel 8, and the water flow flowing out of the water outlet channel 8 will flow into the brewing unit 18 to brew coffee after flowing through the water outlet channel 6 in the brewing unit body 1, thereby reducing the error between the temperature feedback of the temperature detection element 4 and the actual temperature flowing into the brewing unit 18.
[0045] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principles of the present application are also considered to be within the protection scope of the present application.
Claims
1. A brewing unit with temperature detection element, comprising a brewing unit body (1) including a water inlet (2) provided in the brewing unit body (1) to communicate with a hot water source, a water outlet (3) for the water exiting the brewing unit body (1) and a brewing unit (18), a water outlet channel being provided between the water outlet (3) and the brewing unit (18) to direct the water flow exiting the water outlet (3) towards the brewing unit (18), characterized in that: A temperature detecting element (4) is arranged on the brewing unit body (1) to detect the temperature of the water flow flowing into the water outlet channel.
2. A brewing unit with temperature-sensing element as claimed in claim 1, characterized in that: An installation hole (10) is arranged on the brewing unit body (1) to pass through the water outlet channel, and the temperature detecting element (4) is arranged in the installation hole (10).
3. A brewing unit with temperature-sensing element as claimed in claim 2, characterized in that: The water outlet channel comprises a water inlet pipe (5) to vertically lead the water flow upward, and a water outlet pipe (6) to vertically lead the water flow downward to the brewing unit (18), and a reversing component is arranged on the brewing unit body (1) to reverse the water flow flowing into the water inlet pipe (5) to flow into the water outlet pipe (6).
4. The brewing unit with temperature detecting element according to claim 3, characterized in that: The reversing component comprises a reversing block (9) arranged above the brewing unit body (1), and a water inlet flow channel (7) communicated with the water inlet pipe (5), a water outlet flow channel (8) communicated with the water outlet pipe (6), and a connecting flow channel (16) connecting the water inlet flow channel (7) and the water outlet flow channel (8) are arranged in the reversing block (9), and the installation hole (10) is arranged on the reversing block (9) and communicated with the water outlet flow channel (8).
5. A brewing unit with temperature-sensing element as claimed in claim 4, characterized in that: A separation preventing component is arranged on the reversing block (9) to prevent the temperature detecting element (4) arranged in the installation hole (10) from separating from the installation hole (10).
6. A brewing unit with temperature-sensing element as claimed in claim 5, characterized in that: The separation preventing component comprises a separation preventing plate (11) arranged on the reversing block (9) near the installation hole (10) and hinged to the reversing block (9), and the separation preventing plate (11) is rotated to a certain angle to close the end of the installation hole (10) away from the water outlet flow channel (8), and a limiting component is arranged on the reversing block (9) to limit the position of the separation preventing plate (11) when the separation preventing plate (11) is turned to close the installation hole (10).
7. A brewing unit with temperature-sensing element as claimed in claim 6, characterized in that: The limiting component comprises a limiting block (12) arranged on the reversing block (9) at the end of the installation hole (10) away from the separation preventing plate (11), and a limiting slot (13) arranged in the limiting block (12) for the separation preventing plate (11) to partially insert when the separation preventing plate (11) is turned to close the installation hole (10), and an elastic limiting plate (14) arranged on the side wall of the limiting slot (13) to limit the separation preventing plate (11) inserted into the limiting slot (13).
8. The brewing unit with temperature detecting element according to claim 4, characterized in that: A positioning component is arranged between the reversing block (9) and the brewing unit body (1) to position the installation of the reversing block (9).
9. A brewing unit with temperature-sensing element as claimed in claim 8, characterized in that: The positioning component comprises a positioning slot (17) arranged on the upper surface of the brewing unit body (1) for the bottom of the reversing block (9) to positionally insert.
10. A coffee maker comprising a coffee maker body (15), characterized in that, The coffee machine body (15) comprises the brewing unit with the temperature detecting element (4) as claimed in any one of claims 1-9.
Citation Information
Patent Citations
Coffee machine
CN209915734U