Equipment for making drinks

Abstract

The utility model relates to equipment for making drinks, which comprises a water tank, a heater and an extractor, the downstream branch of the water outlet end of the water tank is a first water pumping pipeline and a second water pumping pipeline, the first water pumping pipeline and the second water pumping pipeline are respectively provided with a first water pump and a second water pump, the first water pumping pipeline is connected to the extractor, and the second water pumping pipeline is connected to the heater. The heater comprises a liquid heating channel, the second pump water channel is connected to the liquid heating channel of the heater, and the water outlet end of the liquid heating channel is connected to the extractor through the water channel. Branching and switching of the cold water path and the hot water path are achieved through the two independent pumping water paths, the first water pump and the second water pump are arranged in the two pumping water paths respectively and used for being matched with the water pumping frequency and pressure of different water pumps needed in the cold extraction process and the hot extraction process, and compared with the prior art, the service life of the water pumps can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of beverage making equipment, in particular to a water channel control structure thereof. Background Art

[0002] Equipment for making beverages, such as coffee machines, are now widely used in various occasions. Traditional coffee machines can usually only make hot coffee, while iced coffee is also popular in the market due to its unique taste. In some conventional prior arts, if you want to make iced coffee, you usually add ice cubes after making hot coffee, or put the hot coffee into a refrigerator for freezing. In these prior arts, if ice cubes are added to hot coffee, the water added by the ice cubes will affect the taste of the coffee. If the hot coffee is put into a refrigerator for freezing, additional equipment is required, and iced coffee cannot be made solely by a coffee machine.

[0003] In this regard, some prior arts have proposed coffee machines that can make both iced coffee and hot coffee at the same time. Generally speaking, this coffee machine structure divides the water supply circuit of the extractor into a hot water circuit and a cold water circuit. Since only one of hot water or cold water is needed in a coffee making process, the hot water circuit and the cold water circuit will be branched and switched through a three-way valve. A water pump will be provided before the three-way valve to deliver water to the water inlet of the three-way valve. However, since the frequency and pressure of water pumping in the two extraction methods of cold extraction and hot extraction are different, if the same water pump is used for a long time, the life of the water pump will become shorter, and in this structure, as long as one of the three-way valve and the water pump fails, neither iced coffee nor hot coffee can be made, which is quite restrictive.

[0004] In addition, in the prior art, the coffee machine is also equipped with a steam device. A heating device is provided in the hot water circuit to heat the water flow, and a part of the heated hot water is connected to the extractor, and the other part is connected to the steam device. However, in the prior art, the heating device is only provided with a liquid heating channel, and the hot water is diverted to the extractor and the steam device after flowing out of the heating device. In this structure, the temperature of the hot water flowing to the extractor and the steam device is basically the same. Since the water temperature of hot extracted coffee is generally set to be slightly lower than the boiling point of water, if the user needs to make hot coffee after using the steam function, the heating device needs to be cooled down additionally, which results in waiting time. Utility Model Content

[0005] Therefore, in view of the above problems, the present invention proposes a device for making beverages with optimized structure.

[0006] The utility model is implemented by the following technical solutions:

[0007] The utility model proposes a device for making beverages, comprising a water tank, a heater and an extractor, wherein the downstream of the water outlet end of the water tank is branched into a first pump water intake path and a second pump water intake path, the first pump water intake path and the second pump water intake path are respectively provided with a first water pump and a second water pump, the first pump water intake path is connected to the extractor, the heater comprises a liquid heating channel, the second pump water intake path is connected to the liquid heating channel of the heater, and the water outlet end of the liquid heating channel is connected to the extractor through a water channel.

[0008] Preferably, a three-way joint is provided at the water inlet end of the extractor, and the water outlet ends of the first pump water intake path and the liquid heating channel are respectively connected to two interfaces of the three-way joint.

[0009] Preferably, a steam device is also included, the liquid heating channel is a single flow channel, and the downstream branch of the water outlet end of the liquid heating channel is divided into a first high-temperature water channel and a second high-temperature water channel, the first high-temperature water channel is connected to the extractor, and the second high-temperature water channel is connected to the steam device.

[0010] Preferably, a pressure relief device is provided on the second pump water intake path downstream of the second water pump, and the pressure relief device includes a return water inlet connected to the water tank.

[0011] The utility model also provides a device for making beverages, which can be implemented alone or in combination with the first device for making beverages described above. The device for making beverages includes a water tank, an extractor, and a steam device, a cold water supply waterway and a hot water supply waterway are provided between the water tank and the extractor, a heater is provided on the hot water supply waterway, and the heater includes a first liquid heating channel and a second liquid heating channel which are independent of each other, a water outlet end of the first liquid heating channel is connected to the extractor through a waterway, and a water outlet end of the second liquid heating channel is connected to the steam device through a waterway.

[0012] Among them, preferably, the heater includes a first heating zone and a second heating zone for heating the first liquid heating channel and the second liquid heating channel respectively, and the first heating zone and the second heating zone are implemented to be independently controlled to achieve different liquid heating temperatures in the first liquid heating channel and the second liquid heating channel.

[0013] Wherein, preferably, a switching structure is provided upstream of the water inlet ends of the first liquid heating channel and the second liquid heating channel for controlling the water supply to the first liquid heating channel and / or the second liquid heating channel.

[0014] Preferably, the switching structure is a three-way valve, or the switching structure includes two pumping water paths respectively connected to the first liquid heating channel and the second liquid heating channel, and each of the two pumping water paths is provided with a water pump.

[0015] Among them, preferably, the switching structure includes a first pump water intake path and a second pump water intake path respectively connected to the first liquid heating channel and the second liquid heating channel, a water pump is respectively provided on the first pump water intake path and the second pump water intake path, and a three-way valve is provided on the first pump water intake path, one water outlet of the three-way valve is connected to the first liquid heating channel, and the other water outlet of the three-way valve is connected to the extractor.

[0016] The utility model has the following beneficial effects:

[0017] 1. The branching and switching of the cold and hot water circuits of the utility model are realized by using two independent pump water circuits. The first water pump and the second water pump are respectively arranged in the two pump water circuits to match the frequency and pressure of different water pumps required in the cold extraction and hot extraction processes, which can increase the life of the water pumps compared with the prior art. In addition, even if one of the first water pump and the second water pump fails, the other one can still work, so that the device does not completely lose the function of preparing beverages.

[0018] 2. The utility model adopts a double heating channel design, so that the temperature of the hot water output by the heater to the extractor and the steam device is independently controllable. If the user needs to make hot coffee after using the steam device, there is no need to cool down the heating device and it can be made directly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of an apparatus for making beverages in Example 1;

[0020] Figure 2 is a schematic diagram of an apparatus for making beverages in Example 2;

[0021] Figure 3 is a schematic diagram of a variation of Embodiment 2;

[0022] Figure 4 Schematic diagram of a device for making beverages in Example 3. DETAILED DESCRIPTION

[0023] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0025] Embodiment 1:

[0026] See also Figure 1 As shown, as a preferred embodiment of the utility model, a device for making beverages is provided. This embodiment is described by taking the device as an example of a coffee machine. The coffee machine includes a water tank 11, a heater 18, an extractor 19 and a steam device 111. The water tank 11 is used as a water supply source. The water outlet of the water tank 11 is connected to a water guide seat 12 and a flow meter 13 in sequence through a water path. The flow meter 13 is connected to a three-way interface downstream, thereby branching out a first pump water intake path 14 and a second pump water intake path 15. The first pump water intake path 14 and the second pump water intake path 15 are respectively provided with a first water pump 16 and a second water pump 17. The first water pump 16 and the second water pump 17 can be driven independently by a controller. The first pump water intake path 14 is directly connected to the extractor 19. When cold coffee needs to be made, the first water pump 16 is controlled to work so that cold water enters the extractor 19 to infiltrate the coffee powder in the extractor 19, thereby extracting and obtaining cold coffee.

[0027] The heater 18 includes a liquid heating channel (not shown in the figure), the second pump water intake channel 15 is connected to the liquid heating channel of the heater 18, and the outlet end of the single-channel liquid heating channel is branched into a first high-temperature water channel 113 and a second high-temperature water channel 114 downstream, the first high-temperature water channel 113 is connected to the extractor 19, and the second high-temperature water channel 114 is connected to the steam device 111. When hot coffee needs to be made, the second water pump 17 is controlled to allow cold water to enter the heater 18 and be heated to hot water, and the hot water enters the extractor 19 through the first high-temperature water channel 113 to infiltrate the coffee powder in the extractor 19, thereby extracting hot coffee. The steam device 111 is a prior art, and its structure and function are not repeated here.

[0028] The present embodiment uses two independent pump water intake circuits to realize the branching and switching of the cold and hot water circuits. The first water pump 16 and the second water pump 17 are respectively provided in the two pump water intake circuits to match the different pumping frequencies and pressures required in the cold extraction and hot extraction processes, which can increase the life of the water pumps compared to the prior art. In addition, even if one of the first water pump 16 and the second water pump 17 fails, the other one can still work, so that the coffee machine does not completely lose the function of preparing beverages.

[0029] In this embodiment, the water inlet end 19 of the extractor 19 is provided with a three-way joint 115, and the water outlet ends of the first pump water intake passage 14 and the liquid heating channel of the heater 18 are respectively connected to two interfaces of the three-way joint 115. Such an arrangement makes the water supply connection structure of the extractor 19 simpler and more compact.

[0030] In this embodiment, a pressure relief device 112 is provided on the second pump water intake passage 15 and downstream of the second water pump 17. The pressure relief device 112 includes a return water port connected to the water tank 11. This structure can recycle water without the need for an additional drain pan.

[0031] The water tank 11 can be replaced by other water supply sources, for example, the coffee machine is directly connected to an external water pipe.

[0032] In addition to the coffee machine, the device for making beverages in this embodiment may also be a device for making other beverages such as a tea maker.

[0033] Embodiment 2:

[0034] See also Figure 2 As a preferred embodiment of the utility model, a device for making beverages is provided. This embodiment is described by taking the device as an example of a coffee machine. The coffee machine includes a water tank 11, a heater 28, an extractor 19 and a steam device 111. A cold water supply waterway 26 and a hot water supply waterway 25 are provided between the water tank 11 and the extractor 19, and a heater 28 is provided on the hot water supply waterway 25.

[0035] The water tank 11 is used as a water supply source, and the water outlet of the water tank 11 is connected to the water guide seat 12 and the flow meter 13 in sequence through the water path. The downstream of the flow meter 13 is connected to the water pump 24, the pressure relief device 112 and the first switching valve 27 in sequence through the water path. The water pump 24 is used to convey water flow, and the pressure relief device 112 realizes pressure relief. The pressure relief device 112 includes a reflux water port connected to the water tank 11, and the water can be recycled. One of the water outlets of the first switching valve 27 is connected to the water inlet of the second switching valve 210, and the other water outlet of the first switching valve 27 is connected to the extractor 19 to form a cold water supply water path 26. The first switching valve 27 and the second switching valve 210 are both three-way valves. When cold coffee needs to be made, the first switching valve 27 is opened to connect to the water outlet of the extractor 19, so that cold water can enter the extractor 19 to infiltrate the coffee powder in the extractor 19, thereby extracting and obtaining cold coffee.

[0036] The heater 28 includes a first liquid heating channel 281 and a second liquid heating channel 282 which are independent of each other. The water outlet of the first liquid heating channel 281 is connected to the extractor 19 through a water channel, and the water outlet of the second liquid heating channel 282 is connected to the steam device 111 through a water channel. The two water outlets of the second switching valve 210 are respectively connected to the water inlet ends of the first liquid heating channel 281 and the second liquid heating channel 282 to form a hot water supply water channel 25. The second switching valve 210 can control the water supply to the first liquid heating channel 281 and / or the second liquid heating channel 282, that is, through the second switching valve 210, the hot water supply water channel 25 can supply hot water to the steam device 111 alone to realize the steam function, or the hot water supply water channel 25 can supply hot water to the extractor 19 alone to realize the function of making hot coffee, or the hot water supply water channel 25 can supply hot water to the steam device 111 and the extractor 19 at the same time to realize the functions of steam and making hot coffee at the same time.

[0037] The heater includes a first heating zone and a second heating zone for heating the first liquid heating channel 281 and the second liquid heating channel 282, respectively, and the first heating zone and the second heating zone are implemented to be independently controlled. For example, the first heating zone and the second heating zone are two areas on a heating structure that correspond to the first liquid heating channel 281 and the second liquid heating channel 282, respectively, and the heating work of the two areas is independently driven by the controller, so that different liquid heating temperatures can be achieved in the first liquid heating channel 281 and the second liquid heating channel 282. Alternatively, the first heating zone and the second heating zone belong to two heating structures (such as two electric heating plates), respectively, and the two heating structures are independently driven by the controller, respectively, so that different liquid heating temperatures can be achieved in the first liquid heating channel 281 and the second liquid heating channel 282. Then the hot water temperature output by the heater 28 to the extractor 19 and the steam device 111 is independently controllable. If the user needs to make hot coffee after using the steam device 111, it is not necessary to cool down the heating device, and it can be made directly.

[0038] The water tank 11 can be replaced by other water supply sources, for example, the coffee machine is directly connected to an external water pipe.

[0039] In addition to the coffee machine, the device for making beverages in this embodiment may also be a device for making other beverages such as a tea maker.

[0040] This embodiment can use the water path switching structure of the dual water pump of embodiment 1 to replace the first switching valve 27 or the second switching valve 210 as a three-way valve. For example, Figure 3A variation of the present embodiment is shown, in which the heater 28 includes a first liquid heating channel 281 and a second liquid heating channel 282, and a switching structure is provided upstream of the water inlet ends of the first liquid heating channel 281 and the second liquid heating channel 282 for controlling the water supply to the first liquid heating channel 281 and / or the second liquid heating channel 282, and the switching structure specifically includes a first pump water intake path 44 and a second pump water intake path 45 respectively connected to the first liquid heating channel 281 and the second liquid heating channel 282, a water pump is provided on the first pump water intake path 44 and the second pump water intake path 45, a three-way valve 46 is provided on the first pump water intake path 44, one water outlet of the three-way valve 46 is connected to the first liquid heating channel 281, and the other water outlet of the three-way valve 46 is connected to the extractor.

[0041] Although the heater of the single-channel structure is used in the first embodiment, the double-channel structure of the heater 28 and the corresponding water channel structure of the first embodiment can also be used in the first embodiment. The corresponding structure only needs to be adaptively changed based on the first embodiment and combined with the double-channel structure of the heater 28 and the corresponding water channel structure of the first embodiment, and will not be described in detail here.

[0042] Embodiment 3:

[0043] See also Figure 4 The present embodiment provides a device for making beverages, including a water tank 11 and an extractor 19, a hot water supply waterway 35 and a cold water supply waterway 34 are provided between the water tank 11 and the extractor 19, and the hot water supply waterway 35 and the cold water supply waterway 34 are switched by a three-way valve 30. A heater 18 for heating water flow is provided on the hot water supply waterway 35. Compared with the prior art, the present embodiment removes the steam device, so that the device structure is more streamlined and the manufacturing cost is lower.

[0044] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes made to the present invention in form and detail, without departing from the spirit and scope of the present invention as defined in the appended claims, shall fall within the scope of protection of the present invention.

Claims

1. A device for making drinks, characterized in that: It includes a water tank, a heater and an extractor. The downstream of the water outlet end of the water tank branches into a first pump water intake path and a second pump water intake path. The first pump water intake path and the second pump water intake path are respectively provided with a first water pump and a second water pump. The first pump water intake path is connected to the extractor. The heater includes a liquid heating channel. The second pump water intake path is connected to the liquid heating channel of the heater. The water outlet end of the liquid heating channel is connected to the extractor through a water channel.

2. The device for making beverages according to claim 1, characterized in that: A three-way joint is provided at the water inlet end of the extractor, and the water outlet ends of the first pump water intake passage and the liquid heating channel are respectively connected to two interfaces of the three-way joint.

3. The device for making beverages according to claim 1, characterized in that: It also includes a steam device, the liquid heating channel is a single flow channel, and the downstream of the water outlet end of the liquid heating channel branches into a first high-temperature water channel and a second high-temperature water channel, the first high-temperature water channel is connected to the extractor, and the second high-temperature water channel is connected to the steam device.

4. The device for making beverages according to claim 1, characterized in that: A pressure relief device is provided on the second pump water intake path downstream of the second water pump, and the pressure relief device includes a return water port connected to the water tank.

5. The device for making beverages according to claim 1, characterized in that: It also includes a steam device, the liquid heating channel includes a first liquid heating channel and a second liquid heating channel which are independent of each other, the water outlet end of the first liquid heating channel is connected to the extractor through a water path, and the water outlet end of the second liquid heating channel is connected to the steam device through a water path, the heater includes a first heating zone and a second heating zone for heating the first liquid heating channel and the second liquid heating channel respectively, the first heating zone and the second heating zone are implemented to be independently controlled to achieve different liquid heating temperatures in the first liquid heating channel and the second liquid heating channel.

6. A device for making a drink, characterized in that: It includes a water tank, an extractor and a steam device. A cold water supply waterway and a hot water supply waterway are provided between the water tank and the extractor. A heater is provided on the hot water supply waterway. The heater includes a first liquid heating channel and a second liquid heating channel which are independent of each other. The water outlet end of the first liquid heating channel is connected to the extractor through the waterway, and the water outlet end of the second liquid heating channel is connected to the steam device through the waterway.

7. The device for preparing beverages according to claim 6, characterized in that: The heater includes a first heating zone and a second heating zone for heating the first liquid heating channel and the second liquid heating channel respectively. The first heating zone and the second heating zone are implemented to be independently controlled to achieve different liquid heating temperatures in the first liquid heating channel and the second liquid heating channel.

8. The device for making beverages according to claim 6, characterized in that: A switching structure is provided upstream of the water inlet ends of the first liquid heating channel and the second liquid heating channel for controlling the water supply to the first liquid heating channel and / or the second liquid heating channel.

9. The device for preparing beverages according to claim 8, characterized in that: The switching structure is a three-way valve, or the switching structure includes two pumping water paths respectively connected to the first liquid heating channel and the second liquid heating channel, and each of the two pumping water paths is provided with a water pump.

10. The device for making beverages according to claim 8, characterized in that: The switching structure includes a first pump water intake path and a second pump water intake path which are respectively connected to the first liquid heating channel and the second liquid heating channel, a water pump is provided on each of the first pump water intake path and the second pump water intake path, a three-way valve is provided on the first pump water intake path, one water outlet of the three-way valve is connected to the first liquid heating channel, and the other water outlet of the three-way valve is connected to the extractor.

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