A coffee maker

Abstract

The utility model discloses a coffee machine, including water storage tank, the water storage tank includes water tank body and water shortage detection sensor, the water tank body includes water tank bottom plate and the water tank side plate formed by the edge of water tank bottom plate and the same direction extension, the water tank side plate surrounds the water tank bottom plate outer periphery to with water tank bottom plate together enclose and form the water storage cavity of one end opening, the water tank bottom plate partial downward recess forms a low part, the water shortage detection sensor sets up in water tank side plate outside and is just for low part top. The utility model has solved the problem that the existing water storage tank is easy to have too much residual water and the water tank or the water storage tray of coffee machine is easy to liquid sloshing splashing etc.

Description

Technical Field

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

[0002] The water tank of existing home coffee machines is fixed to the water tank bracket and cannot be disassembled for cleaning. When the coffee machine is short of water, users need to use other containers to add water to the water tank, which is very inconvenient. Some coffee machines have set the water tank to be external and set to be detached from the water tank bracket by pulling it out. This not only makes it convenient for users to clean the water tank at any time, but also makes it convenient for users to add water directly.

[0003] These coffee machines typically have water level sensors on their water tanks to detect when the tank is low on water. However, existing water tanks have a horizontal bottom and a relatively wide cross-section. This means that when the water level sensor detects a low water level, there is often a significant amount of water remaining, leading to a poor user experience. Furthermore, the water tank or reservoir is prone to splashing when being pulled out. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a coffee machine that solves the problems of excessive residual water in the water tank when the water shortage reminder is issued, and the easy splashing of liquid in the coffee machine's water tank or reservoir.

[0005] This utility model is achieved through the following technical solution:

[0006] A coffee machine includes a water tank, the water tank comprising:

[0007] The water tank body is removably installed in the water tank bracket. The water tank body includes a water tank bottom plate and a water tank side plate extending in the same direction from the edge of the water tank bottom plate. The water tank side plate surrounds the outer periphery of the water tank bottom plate to form a water storage cavity with an open end together with the water tank bottom plate. The water tank bottom plate is partially recessed to form a low position.

[0008] A water shortage detection sensor is disposed on the outer wall of the side plate of the water tank or on the side wall of the water tank bracket, and is disposed above the lower part.

[0009] Furthermore, the bottom plate of the water tank also includes a high position portion and a transition portion. In the vertical direction, the high position portion and the low position portion are offset from each other, and the high position portion is located above the low position portion. The transition portion is inclined relative to the horizontal plane and connects the high position portion and the low position portion.

[0010] Furthermore, the high-position portion and the low-position portion are respectively arranged parallel to or inclined to the horizontal plane.

[0011] Furthermore, the water storage cavity is also equipped with multiple baffles, which are staggered along the pulling direction of the water storage tank.

[0012] Furthermore, the baffle plate is integrally formed on the inner side of the water tank body and is fixedly connected to the bottom plate and the side plate of the water tank respectively.

[0013] Furthermore, the water tank side plate includes a first side plate and a second side plate that extend along the pull-out direction of the water tank side plate and are arranged opposite to each other, and adjacent baffles are respectively connected to the first side plate and the second side plate.

[0014] Furthermore, a limiting block is fixed on the outer side of the high position, and an elastic protrusion is provided on the water tank bracket corresponding to the position of the limiting block. A first inclined surface and a second inclined surface are formed on the limiting block. When the water tank body is pulled out of the water tank bracket, the first inclined surface is slidably connected to the elastic protrusion; when the water tank body is pushed into the water tank bracket, the second inclined surface is slidably connected to the elastic protrusion.

[0015] Furthermore, it also includes a water storage tray connected to the bottom of the water tank bracket. The water storage tray includes a bottom wall and a surrounding wall around the bottom wall. The surrounding wall includes an insertion section that is inclined outward along the radial direction of the water storage tray.

[0016] Furthermore, the bottom wall of the disc protrudes inward to form a protrusion, and a water accumulation groove is formed between the protrusion and the surrounding wall of the disc.

[0017] Furthermore, a buffer block is also provided protruding inward on the bottom wall of the tray. The buffer block includes an inclined buffer slope. The coffee machine also includes a beverage outlet assembly, which includes a dispensing nozzle. The projection of the dispensing nozzle in the vertical direction is located on the inclined buffer slope.

[0018] Furthermore, it also includes a heating plate and a buffer plate, wherein the buffer plate is connected between the heating plate and the water storage plate via a pipe;

[0019] The buffer disc is equipped with multiple baffles, which are staggered along the direction of steam flow.

[0020] Compared with existing technologies, the advantages of this utility model are:

[0021] 1. By setting a locally recessed low section on the bottom plate of the water tank and placing the water shortage detection sensor on the outside of the side plate of the water tank and directly above the low section, combined with the high and low position difference guiding structure formed by the high section and the transition section, the water in the water storage tank is naturally gathered to the low section, ensuring that the water shortage detection sensor accurately reflects the water shortage status and avoiding the problems of excess water waste and false alarms.

[0022] 2. In the preferred embodiment of this utility model, by setting multiple baffles arranged in a staggered manner along the pulling direction in the water storage cavity, and by connecting adjacent baffles to the opposite first side plate and second side plate respectively, a "maze-like" obstruction of water flow swaying during the pulling of the water storage tank is achieved, which weakens the impact force of water flow, reduces water splashing and overflow, and protects the internal components of the coffee machine.

[0023] 3. In the preferred embodiment of this utility model, by setting an inwardly protruding protrusion on the bottom wall of the water storage tray of the coffee machine to form a water accumulation groove connected to the tray wall, the structural strength of the water storage tray is improved and the water is concentrated and collected, which reduces the deformation of the tray bottom and simplifies the cleaning steps.

[0024] 4. In the preferred embodiment of this utility model, by setting a buffer block with an inclined buffer slope on the bottom wall of the water storage tray of the coffee machine, and making the vertical projection of the liquid outlet nozzle of the beverage outlet component located on the buffer slope, the residual liquid droplets of the liquid outlet nozzle are buffered and guided, reducing liquid splashing and water stains, and keeping the water storage tray and its surroundings clean. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the coffee machine;

[0026] Figure 2 A schematic diagram of the structure of the water storage tank, water tank support and water shortage detection sensor;

[0027] Figure 3 This is a cross-sectional view of the water storage tank;

[0028] Figure 4 This is a partial structural diagram of the water storage tank;

[0029] Figure 5 This is a partial structural diagram of the water storage pan.

[0030] Figure 6 This is a schematic diagram of the overall structure of the water storage pan;

[0031] Figure 7 This is a cross-sectional view of the buffer disk. Detailed Implementation

[0032] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0033] like Figure 1 and Figure 2 As shown, a coffee machine according to an embodiment of the present invention includes a water tank bracket 100 and a water tank 400, the water tank 400 being used to store water for coffee making. In this embodiment, the water tank 400 is detachably connected to the water tank bracket 100 by a pull-out mechanism, facilitating user cleaning and maintenance, preventing the accumulation of residual water, and improving ease of use and hygiene. Furthermore, to monitor the remaining water level in the water tank 400, the present invention provides a water shortage detection sensor 440 on the outer wall of the water tank 400 or on the side wall of the water tank bracket 100, near the lowest point of the water tank 400.

[0034] like Figure 3 As shown, the water storage tank 400 includes a tank body that is removably installed within the tank support 100. The tank body includes a bottom plate 410 and a side plate 420 extending in the same direction from the edge of the bottom plate 410. The side plate 420 surrounds the outer periphery of the bottom plate 410 to form a water storage cavity 430 with an open end. The bottom plate 410 is partially recessed to form a low section 411. The bottom plate 410 also includes a high section 412 and a transition section 413. In the vertical direction, the high section 412 and the low section 411 are offset from each other, with the high section 412 located above the low section 411. The transition section 413 is inclined relative to the horizontal plane and connects the high section 412 and the low section 411.

[0035] Furthermore, such as Figure 2As shown, the water shortage detection sensor 440 is installed on the side wall of the water tank bracket 100 and above the lower part 411. When the water level in the water tank 400 gradually decreases, the water will flow naturally along the inclined surface of the transition part 413 to the lower part 411 under the action of gravity, ensuring that the lower part 411 can retain water to the maximum extent. The alarm is only triggered when the water level is lower than the detection position of the water shortage detection sensor 440. This avoids the waste of residual water caused by the water shortage detection sensor 440 alarming too early, and can accurately reflect the true water shortage status. It solves the problem of false alarms or residual water caused by the unreasonable structure of the water tank bottom plate 410 of the traditional water shortage detection sensor 440.

[0036] In other embodiments, the water shortage detection sensor 440 may also be disposed on the outer wall of the water tank side plate 420 and above the lower part 411.

[0037] The water shortage detection sensor 440 in this application can be a capacitive sensor, which senses the water level based on the capacitance change caused by the change of the medium between the plates. The working principle and selection of the specific water shortage detection sensor 440 are existing technologies and will not be described in detail in this application.

[0038] In one embodiment of this invention, the high-level portion 412 and the low-level portion 411 are respectively arranged parallel to the horizontal plane. In another embodiment of this invention, the high-level portion 412 and the low-level portion 411 are respectively inclined, and the transition portion 413 is obliquely connected, further ensuring that the water in the high-level portion 412 flows smoothly to the low-level portion 411. Both arrangement methods can form a natural flow path through the difference in elevation, and in particular, the inclined high-level portion 412 can accelerate the convergence of water flow to the low-level portion 411, ensuring the continuity and accuracy of water shortage detection.

[0039] The water tank 400 also includes a handle 450, which makes it easier for users to hold and move the water tank 400, improving ease of operation.

[0040] like Figure 3 As shown, the water storage tank 400 also includes a top plate 470, which covers the opening of the water storage cavity 430, and a filter element 480 is fixed between the top plate 470 and the bottom plate 410 of the water tank. Specifically, one end of the filter element 480 is fixedly connected to the top plate 470, and the other end is fixed to the lower part 411. The filter element 480 can effectively filter water quality, ensuring the cleanliness of the water in the water storage cavity 430. The top plate 470 is also provided with a water inlet 471 for convenient water filling by the user.

[0041] In another embodiment of this utility model, reference is made to Figure 4The water storage chamber 430 is also equipped with multiple baffles 460, which are staggered along the pulling direction of the water tank 400. The staggered baffles 460 can form a "maze-like" blocking structure during the pulling of the water tank 400. When the water shakes due to inertia, it will be intercepted alternately by the adjacent baffles 460, which can effectively reduce the impact force of the water flow and reduce the situation where water overflows from the water storage chamber 430 due to violent shaking. The blocking effect is more significant when the water tank is full, which not only saves water resources, but also prevents water from seeping into the coffee machine and damaging the circuit components.

[0042] The baffle 460 is integrally molded on the inside of the water tank body and is fixedly connected to the bottom plate 410 and the side plate 420 of the water tank, respectively. The integral molding structure not only improves the connection strength between the baffle 460 and the water tank body, preventing the baffle 460 from loosening and falling off after long-term use, but also reduces the assembly gap, reducing the risk of water leakage from the gaps. At the same time, it simplifies the production process and is conducive to mass production.

[0043] Further reference Figure 4 The water tank side panel 420 includes a first side panel 421 and a second side panel 422 extending along the pull-out direction of the water tank side panel 420 and arranged opposite to each other. Adjacent baffles 460 are respectively connected to the first side panel 421 and the second side panel 422. In this embodiment, there are two baffles 460, and the two baffles 460 are respectively connected to the first side panel 421 and the second side panel 422. This alternating connection method can block the water flow in both the left and right directions, further disrupting the water flow sloshing trajectory and enhancing the flow blocking effect.

[0044] like Figure 3 As shown, a limiting block 4120 is fixed on the outer side of the high position 412. An elastic protrusion 101 is provided on the water tank bracket 100 at the position corresponding to the limiting block 4120. A first inclined surface 4121 and a second inclined surface 4122 are formed on the limiting block 4120. When the water tank body is pulled out of the water tank bracket 100, the first inclined surface 4121 is slidably connected to the elastic protrusion 101. When the water tank body is pushed into the water tank bracket 100, the second inclined surface 4122 is slidably connected to the elastic protrusion 101. During the pulling process, the sliding cooperation between the elastic protrusion 101 and the inclined surface generates a uniform damping feel, providing the user with clear operational feedback: When pushing in, the second inclined surface 4122 slides relative to the elastic protrusion 101. As the pushing action continues, the limiting block 4120 passes over the elastic protrusion 101 and completes the assembly, ensuring that the water tank body is accurately positioned and not easily loosened; when pulling out, the first inclined surface 4121 slides relative to the elastic protrusion 101. As the pulling action continues, the limiting block 4120 passes over the elastic protrusion 101 and completes the disengagement, greatly improving the stability and comfort of the pulling operation.

[0045] like Figure 5As shown, the coffee machine also includes a water reservoir 600 connected to the bottom of the water tank bracket 100. The water reservoir 600 includes a bottom wall 610 and a surrounding wall 620. The surrounding wall 620 includes an insertion section 6200, which is inclined outward along the radial direction of the water reservoir 600. The inclination angle of the insertion section 6200 is 45°-75°, preferably 60°. This inclined insertion section 6200 greatly facilitates the pouring of water from the water reservoir 600. When the user needs to clean the water in the water reservoir 600, after pulling the water reservoir 600 out of the water tank bracket 100, the outwardly inclined insertion section 6200 forms a natural flow guide slope. Because the insertion section 6200 has a tilt angle of 45°-75°, it avoids the problem of slow water flow and excessive residue due to an angle that is too small, while also preventing the difficulty in controlling the water flow direction when emptying the tray due to an angle that is too large. At the same time, the outward tilting structure avoids the obstruction of water flow by the tray wall 620 when the tray is vertically installed. Users can easily empty the water without deliberately adjusting the tilt angle of the water storage tray 600, making the operation more effortless and convenient, effectively improving the efficiency and experience of cleaning the water storage tray 600. For example, when the tilt angle of the insertion section 6200 is 60°, the user only needs to tilt the water storage tray 600 by 30° to allow the water to flow smoothly out along the tilted surface of the insertion section 6200 under the action of gravity, reducing water residue on the tray wall 620 or the bottom wall 610.

[0046] The bottom wall 610 of the tray protrudes inward to form a protrusion 611, and a water collection groove 612 is formed between the protrusion 611 and the surrounding wall 620 of the tray. The design of the protrusion 611 improves the structural strength of the entire water storage tray 600, making the bottom wall 610 less prone to deformation. On the other hand, the protrusion 611 can guide the liquid falling in the center of the bottom wall 610 to the surrounding areas to the water collection groove 612, so that the dispersed water is concentrated and collected. When cleaning, the user only needs to focus on wiping the area of ​​the water collection groove 612, without having to repeatedly wipe the entire bottom of the tray, simplifying the cleaning process and improving maintenance efficiency.

[0047] A buffer block 613 protrudes inward on the bottom wall 610 of the tray. The buffer block 613 includes an inclined buffer slope 6130. The coffee machine also includes a beverage outlet assembly 700, which includes a dispensing nozzle 710. The vertical projection of the dispensing nozzle 710 is located on the buffer slope 6130. When the cup is empty, if there are residual droplets falling from the dispensing nozzle 710, the residual droplets will first contact the buffer slope 6130. The buffer slope 6130 changes the direction of liquid fall, preventing direct dripping onto the bottom wall 610 of the tray and forming scattered water stains, reducing liquid splashing, and further keeping the water tank 600 and its surroundings clean.

[0048] like Figure 6As shown, a perforated plate 630 is also provided above the water storage tray 600. The perforated plate 630 is used to support the cup, and a drip groove 631 is provided on the perforated plate 630. The drip groove 631 is located directly above the buffer slope 6130. When residual droplets fall, they will directly pass through the drip groove 631 of the perforated plate 630 and fall accurately into the buffer slope 6130.

[0049] like Figure 1 As shown, the coffee machine also includes a heating plate 210 and a buffer plate 110, with the buffer plate 110 connected between the heating plate 210 and the water storage pan 600 via a pipe. In this embodiment, the heating plate 210 is positioned above the water tank support 100, and the buffer plate 110 is positioned below the water tank support 100. The heating plate 210 can heat water to produce hot water and also output steam. When the heating plate 210 is depressurized, the steam is first buffered by the buffer plate 110 before being discharged to the water storage pan 600, causing the steam to become liquid and preventing high-temperature steam from damaging the water storage pan 600.

[0050] Further reference Figure 7 The buffer pan 110 is equipped with multiple baffles 111, which are staggered along the steam flow direction. The baffles 111 effectively slow down the steam flow rate, prolong the residence time of steam within the buffer pan 110, promote complete steam liquefaction, and prevent high-temperature steam from damaging the water storage pan 600, ensuring the safety of the water storage pan 600. Simultaneously, the staggered arrangement of the baffles 111 optimizes the steam flow path and improves liquefaction efficiency.

[0051] The embodiments described above are merely illustrative 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 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 coffee machine, comprising a water tank (400), characterized in that, The water storage tank (400) includes: The water tank body is removably installed in the water tank bracket (100). The water tank body includes a water tank bottom plate (410) and a water tank side plate (420) extending in the same direction from the edge of the water tank bottom plate (410). The water tank side plate (420) surrounds the outer periphery of the water tank bottom plate (410) to form a water storage cavity (430) with the water tank bottom plate (410) together. The water tank bottom plate (410) is partially recessed downward to form a low part (411). A water shortage detection sensor (440) is disposed on the outer wall of the water tank side plate (420) or the side wall of the water tank bracket (100), and is disposed above the lower part (411).

2. The coffee machine according to claim 1, characterized in that, The water tank bottom plate (410) also includes a high position part (412) and a transition part (413). In the vertical direction, the high position part (412) and the low position part (411) are offset from each other and the high position part (412) is located above the low position part (411). The transition part (413) is inclined relative to the horizontal plane and connects the high position part (412) and the low position part (411).

3. The coffee machine according to claim 2, characterized in that, The high-position part (412) and the low-position part (411) are respectively arranged parallel to or inclined to the horizontal plane.

4. The coffee machine according to claim 2, characterized in that, The water storage cavity (430) is also provided with a plurality of baffles (460), which are staggered along the pulling direction of the water storage tank (400); Preferably, the baffle plate (460) is integrally formed on the inner side of the water tank body and is fixedly connected to the bottom plate (410) and the side plate (420) of the water tank respectively.

5. The coffee machine according to claim 4, characterized in that, The water tank side plate (420) includes a first side plate (421) and a second side plate (422) that extend along the pull-out direction of the water tank side plate (420) and are arranged opposite to each other. The adjacent baffles (460) are respectively connected to the first side plate (421) and the second side plate (422).

6. The coffee machine according to claim 2, characterized in that, A limiting block (4120) is fixed on the outer side of the high position (412). An elastic protrusion (101) is provided on the water tank bracket (100) corresponding to the position of the limiting block (4120). A first inclined surface (4121) and a second inclined surface (4122) are formed on the limiting block (4120) and are arranged opposite to each other. When the water tank body is pulled out of the water tank bracket (100), the first inclined surface (4121) is slidably connected to the elastic protrusion (101). When the water tank body is pushed into the water tank bracket (100), the second inclined surface (4122) is slidably connected to the elastic protrusion (101).

7. The coffee machine according to claim 1, characterized in that, It also includes a water storage tray (600) connected to the bottom of the water tank bracket (100). The water storage tray (600) includes a bottom wall (610) and a surrounding wall (620) surrounding the bottom wall (610). The surrounding wall (620) includes an insertion section (6200) that is inclined outward along the radial direction of the water storage tray (600).

8. The coffee machine according to claim 7, characterized in that, The bottom wall (610) of the disk protrudes inward to form a protrusion (611), and a water accumulation groove (612) is formed between the protrusion (611) and the disk surrounding wall (620).

9. The coffee machine according to claim 7, characterized in that, A buffer block (613) is also provided protruding inward on the bottom wall (610) of the plate. The buffer block (613) includes a buffer slope (6130) that is inclined. The coffee machine also includes a beverage outlet assembly (700). The beverage outlet assembly (700) includes a dispensing nozzle (710). The projection of the dispensing nozzle (710) in the vertical direction is located on the buffer slope (6130).

10. The coffee machine according to claim 7, characterized in that, It also includes a heating plate (210) and a buffer plate (110), wherein the buffer plate (110) is connected between the heating plate (210) and the water storage plate (600) via a pipe; The buffer disk (110) is provided with multiple baffles (111), which are staggered along the steam flow direction.

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