Coffee machine

Abstract

The coffee machine comprises a machine body, a water tank, a water pump, a heating pipe and an extraction head, the machine body comprises an inner cavity, the water tank, the water pump and the heating pipe are arranged in the inner cavity, the water pump comprises a water inlet end and a water outlet end, the water inlet end of the water pump is communicated with the water tank, the heating pipe comprises a water inlet and a water outlet, and the water inlet is communicated with the water outlet end of the water pump; the extraction head is mounted on the machine body and is communicated with a water outlet of the heating pipe. According to the coffee machine provided by the invention, the heating pipe is arranged in the inner cavity of the machine body, water is heated through the heating pipe, and the volume of the heating pipe is small, so that the volume of the whole machine is small, the occupied space of the whole machine of the coffee machine is reduced, and the portability of the coffee machine is improved. Furthermore, according to the coffee machine, the water pump is arranged in the inner cavity of the machine body, water flowing out of the water outlet end of the water pump has certain water pressure, and after the water enters the extraction head, extracted coffee is better in taste and more savoury and mellow.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a coffee machine. Background Art

[0002] As people's lives become more and more abundant, coffee machines are becoming more and more popular among users. Existing coffee machines mostly use built-in heaters to heat water in the water tank. Existing heaters mostly use thick film heating, but the thick film heating device is large in size, which is not conducive to the miniaturization of the coffee machine. Utility Model Content

[0003] In view of this, the present application provides a coffee machine to facilitate the miniaturization of the coffee machine and improve the portability of the coffee machine.

[0004] The present application provides a coffee machine, comprising:

[0005] body, including the inner cavity;

[0006] a water tank, disposed in the inner cavity;

[0007] A water pump is arranged in the inner cavity, the water pump comprises a water inlet end and a water outlet end, and the water inlet end of the water pump is communicated with the water tank;

[0008] A heating pipe is arranged in the inner cavity, the heating pipe comprises a water inlet and a water outlet, and the water inlet is communicated with the water outlet end of the water pump;

[0009] An extraction head is mounted on the machine body and is communicated with the water outlet of the heating tube.

[0010] The coffee machine provided by the present application has a heating tube disposed in the inner cavity of the machine body, and water is heated by the heating tube. The volume of the heating tube is small, so that the volume of the whole machine is small, thereby reducing the space occupied by the whole coffee machine and improving the portability of the coffee machine. Furthermore, the coffee machine provided by the present application has a water pump disposed in the inner cavity of the machine body, and the water flowing out from the water outlet of the water pump has a certain water pressure, and after entering the extraction head, the extracted coffee tastes better and more mellow.

[0011] In a possible implementation, the heating tube includes an outer tube and an inner tube;

[0012] The outer tube is sleeved on the outer side of the inner tube, and a water flow channel is formed between the outer tube and the inner tube;

[0013] The water flow channel is communicated with the water inlet and the water outlet respectively.

[0014] In the above solution, the water in the water flow channel is heated by the inner tube so that the water reaches a suitable temperature.

[0015] In a possible implementation, the heating tube includes a sealing member, and the sealing member blocks a top opening of the water flow channel.

[0016] In the above solution, the top opening of the water flow channel is sealed by a sealing member to prevent the water in the water flow channel from expanding when heated and flowing out from the top opening, thereby affecting the operation of other components.

[0017] In a possible implementation, a first temperature controller is provided on the heating tube;

[0018] The first thermostat is arranged on the outer wall of the heating tube and close to one end of the water outlet of the heating tube;

[0019] The first thermostat is used to control the heating tube to stop heating when it senses that the water temperature in the heating tube reaches a first set value;

[0020] The first thermostat is also used to control the heating tube to continue heating when it is sensed that the water temperature in the heating tube is lower than the first set value.

[0021] In the above solution, the first temperature controller is used to prevent the water temperature from being too high or too low to affect the taste of the extracted coffee.

[0022] In a possible implementation, the first set value is 60°C to 150°C.

[0023] In the above scheme, the first setting value is 60° C. to 150° C., so that the extracted coffee has a rich and mellow taste.

[0024] In a possible implementation, a second temperature controller is provided on the heating tube;

[0025] The second thermostat is arranged on the outer wall of the heating tube and close to one end of the water inlet of the heating tube;

[0026] The second thermostat is used to alarm when it senses that the water temperature in the heating tube reaches a second set value, and at the same time control the heating tube to stop heating;

[0027] The second setting value is greater than the first setting value.

[0028] In the above scheme, the second temperature controller is used to prevent the heating tube 3 from rupturing due to excessive temperature, thereby preventing a safety accident, thereby ensuring the safety performance of the heating tube 3 during heating.

[0029] In a possible implementation, the second set value is 120°C to 250°C.

[0030] In the above solution, the second set value is 120° C. to 250° C., which ensures the safety performance of the heating tube 3 during heating.

[0031] In a possible implementation, the water tank and the water pump are connected via a water pipe, and a flow meter is provided on the water pipe.

[0032] In the above scheme, the flow rate of water flowing out of the water tank is monitored by a flow meter, so as to prevent the flow rate from being too small to affect the work efficiency and to prevent the flow rate from being too large to cause the pipeline to rupture, thereby ensuring the stability of the flow rate in the pipeline.

[0033] In a possible implementation, a heating resistance wire is provided on the inner wall of the inner tube.

[0034] In the above scheme, water is heated by a heating resistor wire to reach a suitable temperature.

[0035] In a possible implementation manner, the outer tube and the inner tube are both made of metal.

[0036] In the above scheme, the stainless steel material has good corrosion resistance and high temperature resistance, so that the heating tube will not be easily damaged during heating, thereby increasing the service life of the heating tube and reducing the cost.

[0037] In a possible implementation, the heating tube is configured to be U-shaped; or

[0038] The heating tube is configured in a straight line.

[0039] In the above scheme, the U-shaped heating tube can produce a certain buffering effect when the fluid passes through to reduce the pressure change of the fluid, and the U-shape can save space. The straight heating tube can increase the fluid flow rate and increase work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0041] Figure 1 A schematic diagram of the structure of a coffee machine provided in an embodiment of the present application;

[0042] Figure 2 A schematic diagram of the structure of the connection of various components of the coffee machine provided in an embodiment of the present application;

[0043] Figure 3 A cross-sectional view of a heating tube of a coffee machine provided in an embodiment of the present application;

[0044] Figure 4 A cross-sectional view of the side surface of the heating tube of the coffee machine provided in an embodiment of the present application;

[0045] Figure 5 This is a schematic structural diagram of a front view of a heating tube of a coffee machine provided in an embodiment of the present application.

[0046] Description of reference numerals:

[0047] 1- body;

[0048] 11-Inner cavity;

[0049] 2- Water tank;

[0050] 3- Heating tube;

[0051] 31-outer tube;

[0052] 32-inner tube;

[0053] 33-water flow channel;

[0054] 34-seal;

[0055] 3a-water inlet;

[0056] 3b-water outlet;

[0057] 4- Water pump;

[0058] 4a-water inlet end;

[0059] 4b-water outlet;

[0060] 5- Extraction head;

[0061] 6-First thermostat;

[0062] 7- Second thermostat;

[0063] 8- Water pipe;

[0064] 9-Flow meter;

[0065] 10-Thermistor assembly. DETAILED DESCRIPTION

[0066] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0067] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0068] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0069] like Figure 1 and Figure 2 As shown, this embodiment discloses a coffee machine for making coffee. The coffee machine includes a machine body 1, a water tank 2, a heating tube 3, a water pump 4 and an extraction head 5.

[0070] The machine body 1 includes an inner cavity 11, and the water tank 2 is disposed in the inner cavity 11. Specifically, the water tank 2 can be located at the upper part of the inner cavity 11, so as to leave an accommodation space for the water pump 4 and the heating tube 3, making the structure of the coffee machine more compact.

[0071] The water pump 4 is also disposed in the inner cavity 11 and may be located at the lower part of the inner cavity 11 . The water pump 4 includes a water inlet end 4 a and a water outlet end 4 b . The water inlet end 4 a is communicated with the water tank 2 .

[0072] The heating tube 3 is disposed in the inner cavity 11 , and the heating tube 3 includes a water inlet 3 a and a water outlet 3 b , and the water inlet 3 a is communicated with the water outlet end 4 b of the water pump 4 .

[0073] The extraction head 5 is mounted on the machine body 1 and is communicated with the water outlet 3b of the heating tube 3. The extraction head 5 is used to bring the ground coffee powder into contact with water, so that the water penetrates through the filter and dissolves the nutrients in the coffee.

[0074] When heating water, the water pump 4 drives the water in the water tank 2 to flow into the water inlet end 4a of the water pump 4, and then flows out from the water outlet end 4b of the water pump 4 to the water inlet 3a of the heating tube 3. After being heated by the heating tube 3, the water flows out from the water outlet 3b of the heating tube 3 to the extraction head 5.

[0075] The coffee machine provided in the embodiment of the present application has a heating tube 3 disposed in the inner cavity 11 of the machine body 1, and water is heated by the heating tube 3. The heating tube 3 is small in size, so that the volume of the whole machine is small, thereby reducing the space occupied by the whole coffee machine and improving the portability of the coffee machine. Furthermore, the coffee machine provided in the embodiment of the present application has a water pump 4 disposed in the inner cavity 11 of the machine body 1, and the water flowing out from the water outlet 4b of the water pump 4 has a certain water pressure, and after entering the extraction head 5, the extracted coffee tastes better and more mellow.

[0076] Specifically, in the embodiment of the present application, the water pressure flowing out from the water pump 4 can reach 15 Bar, making the extracted coffee taste better.

[0077] In this embodiment, refer to Figure 2As shown, the coffee machine may further include a flow meter 9, which is disposed on a water pipe 8 connected to the water pump 4 and the water tank 2, and is used to monitor the flow of water flowing out of the water tank 2, thereby preventing the flow from being too small to affect the work efficiency and preventing the flow from being too large to cause the pipeline to rupture, thereby ensuring the stability of the flow in the pipeline.

[0078] In this embodiment, if Figure 2 As shown, the heating tube 3 is set to be U-shaped. The U-shaped heating tube can produce a certain buffering effect when the fluid passes through to reduce the pressure change of the fluid. It can be understood that in other embodiments, the heating tube 3 can also be set to be straight to increase the fluid flow rate and increase work efficiency.

[0079] In this embodiment, if Figure 1 As shown, the coffee machine may further include a thermistor assembly 10, which is connected to a water pipe 8 connected to the heating pipe 3 and the extraction head 5. The thermistor assembly 10 is used to measure and adjust the temperature of the water, thereby ensuring that the water reaches the required temperature for effective brewing of coffee.

[0080] Reference Figure 3 and Figure 4 As shown, the heating tube 3 includes an outer tube 31 and an inner tube 32. The outer tube 31 is sleeved on the outer side of the inner tube 32. A water flow channel 33 is formed between the outer tube 31 and the inner tube 32. The water flow channel 33 is communicated with the water inlet 3a and the water outlet 3b respectively. A heating resistance wire is arranged on the inner wall of the inner tube 32, and the heating resistance wire is used to heat the liquid in the water flow channel 33.

[0081] In this embodiment, the outer tube 31 and the inner tube 32 are both U-shaped, which can further save space. In addition, the water in the water flow channel 33 is heated by the inner tube 32 to reach a suitable temperature.

[0082] In this embodiment, the outer tube 31 and the inner tube 32 can both be made of metal materials. Specifically, the outer tube 31 and the inner tube 32 can both be made of stainless steel. Stainless steel has good corrosion resistance and high temperature resistance, so that the heating tube 3 will not be easily damaged during heating, thereby improving the service life of the heating tube 3 and reducing the cost. It can be understood that in other embodiments, the heating tube 3 can also be made of other metal materials.

[0083] In this embodiment, if Figure 5 As shown, the heating tube 3 includes a seal 34, which blocks the top opening of the water flow channel 33 to prevent water from expanding after being heated and flowing out of the top opening of the water flow channel 33, thereby affecting the operation of other components.

[0084] Reference Figure 5As shown, in a possible embodiment, a first thermostat 6 may be provided on the heating tube 3. The first thermostat 6 is provided on the outer wall of the outer tube 31 and close to one end of the water outlet 3b of the heating tube 3. The first thermostat 6 is used to control the heating tube 3 to stop heating when it is sensed that the water temperature in the heating tube 3 reaches a first set value. The first thermostat 6 is also used to control the heating tube 3 to continue heating when it is sensed that the water temperature in the heating tube 3 is lower than the first set value, thereby preventing the water temperature from being too high or too low to affect the taste of the extracted coffee. The first set value may be 60°C to 150°C.

[0085] Specifically, the first setting value can be 60°C, 70°C, 80°C, 90°C, 100°C, 110°C, 120°C, 130°C, 140°C, 150°C. Preferably, the first setting value can be 85°C, so that the extracted coffee tastes the best. Since the first thermostat 6 is close to one end of the water outlet 3b of the heating tube 3, the water temperature can be roughly reflected. That is to say, when the water outlet temperature reaches 85°C, the first thermostat 6 is disconnected, and the heating tube 3 no longer works. When the water outlet temperature is lower than 85°C, the heating tube 3 continues to work, so that the water temperature is kept above 85°C for extracting coffee.

[0086] In a possible embodiment, a second thermostat 7 may also be provided on the heating tube 3. The second thermostat 7 may be a resettable jump thermostat, which is arranged on the outer wall of the outer tube 31 and close to one end of the water inlet 3a of the heating tube 3. The second thermostat 7 is used to alarm when it senses that the water temperature in the heating tube 3 reaches a second set value, and at the same time control the heating tube 3 to stop heating to prevent the heating tube 3 from rupturing due to excessive temperature and causing a safety accident, thereby ensuring the safety performance of the heating tube 3 when heating. The second set value can be 120°C to 250°C.

[0087] Specifically, the second setting value can be 120°C, 150°C, 180°C, 210°C, 240°C, or 250°C. Preferably, the first setting value can be 150°C to prevent the heating tube 3 from rupturing due to excessive temperature and to reduce the time required for cooling water. If the temperature on the side close to the water inlet 3a reaches 150°C, it can be considered that the heating tube 3 has dry-burned. At this time, the second thermostat 7 will trip. At this time, manual disassembly of the machine is required to reset the second thermostat 7 and continue working, thereby ensuring the safety of the coffee machine during use.

[0088] In a specific application scenario, when making coffee, the water pump 4 drives the water in the water tank 2 to flow from the water inlet end 4a of the water pump 4 to the water outlet end 4b of the water pump 4, and then flows into the water flow channel 33 from the water inlet 3a of the heating tube 3. The water entering the water flow channel 33 from the water inlet 3a of the heating tube 3 is heated by the heating resistor wire provided on the inner tube 32, and then flows out from the water outlet 3b of the heating tube 3 to the extraction head 5. The extraction head 5 brings the ground coffee powder into contact with the water, allowing the water to penetrate through the filter and dissolve the nutrients in the coffee, and then pours the coffee formed by the fusion of the coffee powder and water into the cup, thereby completing the coffee making.

[0089] The above describes in detail the structure, features and effects of the present application based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present application, but the present application does not limit the scope of implementation to what is shown in the drawings. Any changes made in accordance with the concept of the present application, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present application.

Claims

1. A coffee machine, characterized in that: include: A body (1) comprising an inner cavity (11); A water tank (2) is arranged in the inner cavity (11); A water pump (4) is arranged in the inner cavity (11), the water pump (4) comprises a water inlet end (4a) and a water outlet end (4b), and the water inlet end (4a) of the water pump (4) is in communication with the water tank (2); A heating pipe (3) is arranged in the inner cavity (11), the heating pipe (3) comprising a water inlet (3a) and a water outlet (3b), the water inlet (3a) being in communication with a water outlet end (4b) of the water pump (4); An extraction head (5), the extraction head (5) is mounted on the machine body (1), and the extraction head (5) is in communication with the water outlet (3b) of the heating tube (3).

2. The coffee machine according to claim 1, characterized in that The heating tube (3) comprises an outer tube (31) and an inner tube (32); The outer tube (31) is sleeved on the outer side of the inner tube (32), and a water flow channel (33) is formed between the outer tube (31) and the inner tube (32); The water flow channel (33) is communicated with the water inlet (3a) and the water outlet (3b) respectively.

3. The coffee machine according to claim 2, characterized in that The heating tube (3) comprises a sealing member (34), and the sealing member (34) blocks the top opening of the water flow channel (33).

4. The coffee machine according to claim 1, characterized in that The heating tube (3) is provided with a first temperature controller (6); The first temperature controller (6) is arranged on the outer wall of the heating tube (3) and close to one end of the water outlet (3b) of the heating tube (3); The first thermostat (6) is used to control the heating tube (3) to stop heating when it senses that the water temperature in the heating tube (3) reaches a first set value; The first temperature controller (6) is also used to control the heating tube (3) to continue heating when it is sensed that the water temperature in the heating tube (3) is lower than the first set value.

5. The coffee machine according to claim 4, characterized in that The first set value is 60°C to 150°C.

6. The coffee machine according to claim 4, characterized in that The heating tube (3) is provided with a second temperature controller (7); The second temperature controller (7) is arranged on the outer wall of the heating tube (3) and close to one end of the water inlet (3a) of the heating tube (3); The second thermostat (7) is used to alarm when it senses that the water temperature in the heating tube (3) reaches a second set value, and at the same time control the heating tube (3) to stop heating; The second setting value is greater than the first setting value.

7. The coffee machine according to claim 6, characterized in that The second set value is 120°C to 250°C.

8. The coffee machine according to claim 1, characterized in that The water tank (2) and the water pump (4) are connected via a water pipe (8), and a flow meter (9) is provided on the water pipe (8).

9. The coffee machine according to claim 2, characterized in that: A heating resistance wire is arranged on the inner wall of the inner tube (32).

10. The coffee machine according to claim 2, characterized in that The outer tube (31) and the inner tube (32) are both made of metal.

11. The coffee machine according to claim 1, characterized in that The heating tube is configured in a U shape; or The heating tube is configured in a straight line.

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