Rapid heating coffee machine

Abstract

The utility model discloses a quick heating coffee machine, which belongs to the technical field of coffee machines and comprises a machine base, a heat insulation plate for placing a coffee pot is arranged on the machine base, a water tank and an extraction box connected with the water tank are arranged on the machine base, and a filter cone is detachably mounted in the extraction box. A hole corresponding to the coffee pot is formed in the lower portion of the extraction box, the bottom end of the filter cone is installed corresponding to the hole, a heating pipe and a heating wire are arranged in the machine base, the two ends of the heating pipe are connected with a water inlet pipe and a water outlet pipe respectively, and the water inlet pipe extends into the water tank and is connected with a water pump. And the water outlet pipe is connected with a water outlet head corresponding to the filter cone. According to the rapid heating coffee machine, the heating wire is wound around the heating pipe, the heat exchange effect of the heating wire and the heating pipe is improved, the heat conduction fins are arranged in the heating pipe, heat is transferred to water in the center of the heating pipe through the heat conduction fins, the heat exchange area between the water and the heating pipe is increased, and therefore the heating speed is effectively increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of coffee machines, in particular to a fast heating coffee machine. Background Art

[0002] With the development of society, people are busy with work and have less and less leisure time. Drinking a cup of coffee in free time is the choice of most people nowadays, because coffee can not only be enjoyed as a beverage, but also can overcome fatigue and improve energy. Therefore, coffee machines are becoming more and more popular.

[0003] When making coffee, the coffee machine heats water and brews coffee powder with hot water to extract the coffee powder and allow the coffee powder to release more aroma and flavor. Existing coffee machines usually use electric heating, using a heating wire attached to a heating tube to instantly heat the water in the heating tube as the water flows through the heating tube. However, since the contact area between the heating wire and the heating tube is limited, the heat transfer effect is poor, especially the water in the center of the heating tube is difficult to heat in time. However, extracting coffee often requires hot water above 90 degrees Celsius. Therefore, existing coffee machines all achieve rapid heating by increasing the power of the heating wire, which will cause the coffee machine to consume more energy.

[0004] Therefore, we propose a fast heating coffee machine to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the prior art of limited contact area between the heating wire and the heating tube, poor heat transfer effect, and high energy consumption for completing coffee extraction, and to propose a fast heating coffee machine.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A fast heating coffee machine includes a machine base, on which is provided an insulation plate for placing a coffee pot, a water tank and an extraction box connected to the water tank, a filter funnel detachably mounted in the extraction box, an opening corresponding to the coffee pot is provided below the extraction box, and the bottom end of the filter funnel is mounted corresponding to the opening, a heating tube and a heating wire are arranged in the machine base, two ends of the heating tube are respectively connected to a water inlet pipe and a water outlet pipe, the water inlet pipe extends into the water tank and is connected to a water pump, the water outlet pipe is connected to a water outlet head corresponding to the filter funnel, and a control mechanism for controlling the water flow in the heating tube is also provided in the machine base.

[0008] Preferably, the heating tube is arranged in an arc shape, and the heating tube is attached to the bottom of the insulation board.

[0009] Preferably, the heating wire is spirally wound around the outer circumference of the heating tube.

[0010] Preferably, a plurality of heat-conducting fins are installed on the inner wall of the heating tube, and the plurality of heat-conducting fins are evenly distributed.

[0011] Preferably, the heating tube and the heat-conducting fins are both made of 316 stainless steel.

[0012] Preferably, the control mechanism includes two fixed rings fixedly mounted on the water outlet pipe, both of the fixed rings are fixed to the inner wall of the machine base, the water outlet pipe between the two fixed rings is replaced with a silicone hose, a control ring is mounted on the silicone hose, and an adjustment rod fixedly connected to the control ring is threadedly connected to the machine base.

[0013] In summary, the technical effects and advantages of the utility model are:

[0014] The fast-heating coffee machine increases the length of the heating tube by providing an arc-shaped heating tube, increases the residence time of water in the heating tube, and improves the heating effect of the water. The heating wire wound around the heating tube can effectively increase the contact area between the heating wire and the heating tube, thereby improving the heat exchange effect between the heating wire and the heating tube and increasing the heating speed. Furthermore, by providing heat-conducting fins in the heating tube, the heat of the heating wire is transferred to the heating tube and then conducted to the heat-conducting fins. The heat is transferred to the water in the center of the heating tube through the heat-conducting fins, thereby increasing the heat exchange area between the water and the heating tube, thereby effectively increasing the heating speed.

[0015] This fast heating coffee machine is provided with a control mechanism. By rotating a control lever, the position of the control ring is changed, the control ring and the fixed ring are dislocated, and the cross-section of the silicone hose is changed, so that the water flow in the water outlet pipe is reduced to achieve throttling. At the same time, it ensures that the heating tube is filled with water, so that the water can stay in the heating tube for a longer time, thereby improving the heating effect and reducing heating energy consumption by sacrificing the water outlet flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the heating tube and heating wire in the utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the heating tube in the present invention;

[0020] Figure 5 This is a structural diagram of the coaxial state of the fixed ring and the control ring of the utility model;

[0021] Figure 6This is a structural diagram of the dislocation state of the fixed ring and the control ring of the utility model.

[0022] In the figure: 1. Machine base; 2. Insulation plate; 3. Coffee pot; 4. Water tank; 5. Extraction box; 6. Filter; 7. Heating tube; 71. Water inlet pipe; 72. Water outlet pipe; 721. Fixing ring; 722. Silicone hose; 723. Control ring; 724. Adjustment rod; 73. Thermal fin; 8. Heating wire; 9. Water pump; 10. Water outlet; 11. Control panel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] Reference Figure 1-4 A fast heating coffee machine includes a machine base 1, on which is provided an insulation plate 2 for placing a coffee pot 3, a water tank 4 and an extraction box 5 connected to the water tank 4, both of which are provided with a box cover, and a filter funnel 6 is detachably installed in the extraction box 5. During extraction, coffee powder is poured into the filter funnel 6, and after brewing with hot water, the coffee concentrate is extracted. An opening corresponding to the coffee pot 3 is opened below the extraction box 5, and the bottom end of the filter funnel 6 is installed corresponding to the opening. The coffee concentrate extracted in the filter funnel 6 drips downward through the filter funnel 6 and directly enters the coffee pot 3.

[0026] A heating tube 7 and a heating wire 8 are provided in the machine base 1. The two ends of the heating tube 7 are respectively connected to a water inlet pipe 71 and a water outlet pipe 72. The water inlet pipe 71 extends into the water tank 4 and is connected to a water pump 9. The water outlet pipe 72 is connected to a water outlet head 10 corresponding to the filter bucket 6. The water pump 9 and the heating wire 8 are both controlled by a control panel 11 on the machine base 1. The control panel 11 is a prior art and will not be elaborated here. The pure water stored in the water tank 4 is pumped into the water inlet pipe 71 through the water pump 9, and enters the heating tube 7 through the water inlet pipe 71. The heat is generated by the heating wire 8 and heat exchange is carried out with the heating tube 7 to heat the water in the heating tube 7. The heated water flows into the water outlet pipe 72 and is finally poured onto the coffee powder in the filter bucket 6 through the water outlet head 10 to extract the coffee powder.

[0027] Reference Figure 1-4The heating tube 7 is arranged in an arc shape, which increases the length of the heating tube 7, increases the residence time of water in the heating tube 7, and improves the heating effect of the water. The heating tube 7 is attached to the bottom of the insulation plate 2, and the heat of the heating tube 7 and the heating wire 8 heats the insulation plate 2, so that the insulation plate 2 keeps the coffee liquid in the coffee pot 3 warm, ensuring the taste of the coffee. The heating wire 8 is spirally wound around the outer circumference of the heating tube 7, which can effectively increase the contact area between the heating wire 8 and the heating tube 7, thereby improving the heat exchange effect between the heating wire 8 and the heating tube 7 and increasing the heating speed.

[0028] Reference Figure 3-4 A plurality of heat-conducting fins 73 are installed on the inner wall of the heating tube 7. The plurality of heat-conducting fins 73 are evenly distributed. The width direction of the heat-conducting fins 73 extends radially along the heating tube 7. After the heat of the heating wire 8 is transferred to the heating tube 7, it will be conducted to the heat-conducting fins 73. The heat is transferred to the water in the center of the heating tube 7 through the heat-conducting fins 73, thereby increasing the heat exchange area between the water and the heating tube 7, thereby further improving the heating speed. The heating tube 7 and the heat-conducting fins 73 are both made of 316 stainless steel. 316 stainless steel is food-grade stainless steel, which ensures water quality safety and reduces the risk of water deterioration during the heating process.

[0029] The base 1 is also provided with a control mechanism for controlling the water flow in the heating tube 7. The control mechanism can be used to control the water flow in the water outlet pipe 72. When preparing coffee efficiently, the water outlet pipe 72 is kept running at the maximum flow rate. When the coffee machine needs to be used in an energy-saving manner, the flow rate in the water outlet pipe 72 is controlled to be reduced, so that the water stays in the heating tube 7 for a longer time, so that the heating wire 8 can still reach the appropriate extraction water temperature when running at a lower power. The heating energy consumption is reduced by sacrificing the water flow rate, and it can be used according to user needs, which is more energy-saving and environmentally friendly.

[0030] Reference Figure 2 、 56, the control mechanism includes two fixed rings 721 fixedly mounted on the water outlet pipe 72, the two fixed rings 721 are fixed to the inner wall of the base 1, the water outlet pipe 72 between the two fixed rings 721 is replaced by a silicone hose 722, the silicone hose 722 is made of high-temperature resistant silicone material, a control ring 723 is sleeved on the silicone hose 722, and an adjusting rod 724 fixedly connected to the control ring 723 is threadedly connected to the base 1. By rotating the adjusting rod 724, the position of the control ring 723 can be changed. When the control ring 723 is coaxial with the fixed ring 721, the silicone The hose 722 is in the maximum flow state. When the control ring 723 is misaligned with the fixed ring 721, the control ring 723 presses against the silicone hose 722, causing the silicone hose 722 to deform and change the cross-section of the silicone hose 722, so that the water flow in the outlet pipe 72 is reduced, thereby achieving throttling. The water can stay in the heating tube 7 for a longer time, thereby improving the heating effect. Moreover, since the silicone hose 722 is located at the water outlet end of the heating tube 7, after the flow of the water pump 9 is reduced, the heating tube 7 can still be filled with water due to the throttling effect of the silicone hose 722 on the water flow, thereby ensuring sufficient heat exchange.

[0031] Working principle:

[0032] When in use, add pure water to the water tank 4, add coffee powder to the filter 6 and then install it into the extraction box 5, start the heating wire 8 and the water pump 9 through the control panel 11, and the pure water stored in the water tank 4 is pumped into the water inlet pipe 71 through the water pump 9, and enters the heating tube 7 through the water inlet pipe 71. The heat generated by the heating wire 8 is exchanged with the heating tube 7 to heat the water in the heating tube 7. After the heat of the heating wire 8 is transferred to the heating tube 7, it is conducted to the heat conducting fins 73, and the heat is transferred to the heating tube 7 through the heat conducting fins 73. The water in the center of the heat pipe 7 increases the heat exchange area between the water and the heating pipe 7, thereby further increasing the heating speed. The heated water flows into the water outlet pipe 72 and is finally poured onto the coffee powder in the filter 6 through the water outlet head 10, thereby extracting the coffee powder. The extracted coffee concentrate in the filter 6 drips downward through the filter 6 directly into the coffee pot 3. At the same time, the heat from the heating pipe 7 and the heating wire 8 heats the insulation plate 2, so that the insulation plate 2 keeps the coffee liquid in the coffee pot 3 warm, thereby ensuring the taste of the coffee.

[0033] When preparing coffee efficiently, the control ring 723 is controlled to be coaxial with the fixed ring 721 to keep the water outlet pipe 72 running at the maximum flow rate. When the coffee machine needs to be used in an energy-saving manner, the position of the control ring 723 can be changed by rotating the adjustment rod 724, so that the control ring 723 and the fixed ring 721 are misaligned. The control ring 723 presses the silicone hose 722, causing the silicone hose 722 to deform and change the cross-section of the silicone hose 722, so that the water flow in the water outlet pipe 72 is reduced, and the flow rate of the water outlet pipe 72 is controlled to be reduced, so that the water stays in the heating tube 7 for a longer time, so that the heating wire 8 can still reach the appropriate extraction water temperature when running at a lower power. The heating energy consumption is reduced by sacrificing the water outlet flow rate, and it can be used according to user needs, which is more energy-saving and environmentally friendly.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fast heating coffee machine, comprising a machine base (1), on which a heat preservation plate (2) for placing a coffee pot (3) is arranged, characterized in that: The machine base (1) is provided with a water tank (4) and an extraction box (5) connected to the water tank (4). A filter box (6) is detachably installed in the extraction box (5). An opening corresponding to the coffee pot (3) is provided below the extraction box (5). The bottom end of the filter box (6) is installed corresponding to the opening. A heating tube (7) and a heating wire (8) are provided in the machine base (1). The two ends of the heating tube (7) are respectively connected to a water inlet pipe (71) and a water outlet pipe (72). The water inlet pipe (71) extends into the water tank (4) and is connected to a water pump (9). The water outlet pipe (72) is connected to a water outlet head (10) corresponding to the filter box (6). A control mechanism for controlling the water flow in the heating tube (7) is also provided in the machine base (1).

2. A fast heating coffee machine according to claim 1, characterized in that: The heating tube (7) is arranged in an arc shape, and the heating tube (7) is attached to the bottom of the insulation board (2).

3. The rapid heating coffee machine according to claim 1, characterized in that: The heating wire (8) is spirally wound around the outer circumference of the heating tube (7).

4. The rapid heating coffee machine according to claim 1, characterized in that: A plurality of heat-conducting fins (73) are installed on the inner wall of the heating tube (7), and the plurality of heat-conducting fins (73) are evenly distributed.

5. The rapid heating coffee machine according to claim 2, characterized in that: The heating tube (7) and the heat-conducting fins (73) are both made of 316 stainless steel.

6. The rapid heating coffee machine according to claim 1, characterized in that: The control mechanism comprises two fixing rings (721) fixedly sleeved on the water outlet pipe (72), the two fixing rings (721) being fixed to the inner wall of the machine base (1), the water outlet pipe (72) between the two fixing rings (721) being replaced with a silicone hose (722), a control ring (723) being sleeved on the silicone hose (722), and an adjusting rod (724) being fixedly connected to the control ring (723) being threadedly connected to the machine base (1).

Images