TWM571203U - Coffee machine - Google Patents

Abstract

A coffee machine includes a boiler in communication and a cooling jacket. In the cooling kit, a coffee liquid and a cooling water will transfer heat energy, and the cooling water absorbs the heat energy of the coffee liquid to heat up and recover and flow into the boiler for reuse, and the coffee liquid releases the heat energy and then cools to become warm coffee, which is available to the consumer immediately. Quote. The cooling jacket comprises a plurality of cascaded parallel coolers, respectively supplying cooling water to the plurality of outer conduits connected in series, providing the sections in a timely manner and replacing the cooling water in time, and improving the cooling efficiency by the multi-stage cooling method.

Description

Coffee machine

The present invention relates to a coffee machine, and more particularly to a warm coffee machine.

Traditional coffee machines can only brew hot coffee, and you need to get extra-ice or iced coffee by adding extra ice, cold water or cooling at room temperature.

However, whether it is the addition of ice or cold water, the coffee will be diluted to affect the original flavor. When consumers want to taste low-temperature or iced coffee, they often need to add a lot of cold water or a lot of ice. Obvious, so consumers can not taste the original coffee.

In addition, if the natural cooling method is adopted, the consumer needs to wait for the above cooling process for a while, and even needs to open the lid to increase the heat dissipation speed. For the consumer, it is necessary to avoid the burn of the hot coffee during the movement. Risks may increase the burden on consumers, but consumers still can't drink warm coffee immediately.

In view of this, some embodiments of the present invention provide a coffee machine that can brew warm coffee.

The coffee machine of one embodiment of the present invention comprises a boiler and a cooling jacket. The cooling jacket includes a first cooler and a second cooler. The first cooler includes a first inner conduit and a first outer conduit covering the first inner conduit; wherein the first inner inlet end of the first inner conduit is for receiving a coffee liquid, and the first inner conduit One of the first inner water outlets is for discharging the coffee liquid; one of the first outer water inlets is disposed adjacent to the first inner water outlet end and is connected to a cooling tube to receive a cooling water, and the first outer A first outlet end of the conduit is disposed adjacent to the first inner inlet end and is in communication with the boiler. The second cooler is in series with the first cooler. The second cooler includes a second inner conduit and a second outer conduit covering the second inner conduit; wherein the second inner inlet end of the second inner conduit is in communication with the first inner water outlet of the first inner conduit Receiving a coffee liquid, and a second inner water outlet end of the second inner conduit is connected to one of the discharge ports of the coffee machine; and a second outer water inlet end of the second outer conduit is adjacent to and connected to the second inner water outlet end The cooling tube receives cooling water, and one of the second outer water outlets of the second outer conduit is disposed adjacent to the second inner water inlet to discharge the cooling water.

Thereby, the coffee liquid flows through the first inner conduit and the second inner conduit of the cooling jacket to be cooled to normal temperature by the cooling water, and the warm coffee is discharged from the outlet of the coffee machine for immediate consumption by the consumer. At the same time, the cooling jacket uses the first outer conduit and the second outer conduit to cool the coffee liquid by means of two-stage supply and replacement of cooling water, wherein the cooling water of the second outer conduit absorbs part of the heat energy and then rises. The high temperature is discharged into the cooling jacket. Then, the first outer conduit is again input with the low temperature cooling water to continue absorbing the thermal energy of the coffee liquid to improve the cooling efficiency. Then, the cooling water discharged from the first outer conduit is recovered and flows into the boiler. Reuse. In other words, the used cooling water flows into the boiler for reuse. In addition to the water-saving effect, it can reduce the heating time and heating energy required for boiler heating, achieve the advantages and functions of water saving, energy saving and effective improvement of cooling efficiency, and supply for consumption. Instant coffee for instant drinking. In the following, the specific embodiments and the accompanying drawings are explained in detail, and it is easier to understand the purpose, technical content, characteristics and effects achieved by the present invention.

The various embodiments of the present invention will be described in detail below with reference to the drawings. In the description of the specification, a number of specific details are provided for the reader to have a more complete understanding of the present invention; however, the present invention may be implemented without omitting some or all of the specific details. The same or similar elements in the drawings will be denoted by the same or similar symbols. It is to be noted that the drawings are for illustrative purposes only and do not represent the actual dimensions or quantities of the components. Some of the details may not be fully drawn in order to facilitate the simplicity of the drawings.

Referring to FIG. 1 and FIG. 2 together, the coffee machine of one embodiment of the present invention comprises a boiler 1 and a cooling jacket 2. The boiler 1 is in communication with the cooling jacket 2, and the boiler 1 receives the cooling water L from the cooling jacket 2.

The cooling jacket 2 includes a first cooler 21 and a second cooler 22. In an embodiment, the first cooler 21 and the second cooler 22 have the same structure, as shown in FIG. 2, but not This is limited. The main working principle of the cooler is to introduce coffee liquid into the inner conduit, and the cooling water is introduced into the outer conduit to transfer the high temperature coffee liquid and the low temperature cooling water in the cooling jacket, wherein the cooling water absorbs the coffee liquid. The heat is heated and heated. At the same time, the coffee liquid transfers heat to the cooling water to cool down. Therefore, the cooling water is preheated to warm water, and the hot coffee is cooled to warm coffee. The structure of the cooler of some embodiments is described in detail below.

The first cooler 21 includes a first inner conduit 211 and a first outer conduit 212, wherein the first outer conduit 212 encloses the first inner conduit 211. The first inner conduit 211 has a first inner water inlet end 211a and a first inner water outlet end 211b. The first outer conduit 212 has a first outer water inlet end 212a and a first outer water outlet end 212b. The first outer water inlet end 212a is disposed adjacent to the first inner water outlet end 211b, and the first outer water inlet end 212a is in communication with a cooling tube 23. The first outlet water end 212b is disposed adjacent to the first inner water inlet end 211a, and the first outlet water end 212b is in communication with the boiler 1.

According to the structure of the first cooler 21, the first inner conduit 211 receives a coffee liquid C through the first inner water inlet end 211a, and discharges the coffee liquid C to the second cooler 22 through the first inner water outlet end 211b. The first outer duct 212 receives the cooling water L from the cooling pipe 23 through the first outer water inlet end 212a, and discharges the heated cooling water L to the boiler 1 through the first outer water outlet end 212b.

It should be noted that the first outer water inlet end 212a of the first outer duct 212 is disposed adjacent to the first inner water outlet end 211b of the first inner duct 211, and the first outer water outlet end 212b of the first outer duct 212 is different from the first outer water outlet end 212b. The first inner water inlet end 211a of the inner duct 211 is disposed adjacent to each other, and therefore, in the first cooler 21, the flow direction of the coffee liquid will be opposite to the flow direction of the cooling water, thereby improving the cooling efficiency. The principle is that when the coffee liquid flows from the first inner water inlet end (the coffee liquid upstream side) of the first inner conduit to the first inner water outlet end (the coffee liquid downstream side), the coffee is cooled and gradually cooled, that is, The temperature of the coffee liquid on the upstream side is higher, and the temperature of the coffee liquid on the downstream side is lower. Therefore, when the reverse-flowing cooling water flows through the first outer water inlet end through the downstream side of the coffee liquid, part of the heat energy of the coffee liquid is absorbed and gradually warmed up, and when the cooling water flows to the first outer water outlet end and reaches the upstream side of the coffee liquid At this time, the temperature of the upstream side coffee liquid is still higher than the temperature of the heated cooling water, and based on the temperature difference between the two, the cooling water will continue to absorb the heat energy of the coffee liquid to effectively cool the coffee liquid.

In the present embodiment, the second cooler 22 is connected in series with the first cooler 21. The second cooler 22 includes a second inner conduit 221 and a second outer conduit 222, wherein the second outer conduit 222 covers the second inner conduit 221.

The second inner duct 221 has a second inner water inlet end 221a and a second inner water outlet end 221b, wherein the second inner water inlet end 221a communicates with the first inner water outlet end 211b of the first inner duct 211, and the second The inner water outlet end 221b is connected to one of the discharge ports 3 of the coffee machine. The second outer conduit 222 has a second outer water inlet end 222a and a second outer water outlet end 222b. The second outer water inlet end 222a is disposed adjacent to the second inner water outlet end 221b, and the second outer water inlet end 222a is in communication with the cooling tube 23. The second outer water outlet end 222b is disposed adjacent to the second inner water inlet end 221a.

According to the structure of the second cooler 22, the second inner conduit 221 receives the coffee liquid C discharged from the first inner water outlet end 211b through the second inner water inlet end 221a, and passes through the second inner water outlet end 221b via the coffee machine. A discharge port 3 discharges the coffee liquid C. The second outer duct 222 receives the cooling water L discharged from the cooling pipe 23 through the second outer water inlet end 222a, and discharges the heated cooling water L through the second outer water outlet end 222b. For example, the cooling water L discharged from the second outlet water end 222b is directly discarded; or the second outlet water end 222b is connected to the boiler 1, so that the discharged cooling water L enters the boiler 1 for reuse.

Similarly, the second outer water inlet end 222a is disposed adjacent to the second inner water outlet end 221b, and the second outer water outlet end 222b is disposed adjacent to the second inner water inlet end 221a. Therefore, in the second cooler 22, the flow direction of the coffee liquid will be opposite to the flow direction of the cooling water, thereby improving the cooling efficiency, and the detailed operation principle has been as described above.

Overall, the cooling jacket 2 is a technical solution for providing multi-stage cooling using a plurality of outer conduits connected in series. In the above embodiment, the first outer duct 212 and the second outer duct 222 can be supplied in stages and the cooling water L is replaced in time to cool the coffee liquid C, wherein the cooling water L of the second outer duct 222 is absorbed. After some of the thermal energy, the temperature is raised to be discharged to the cooling jacket 2, and then the first outer conduit 212 is again input with the low-temperature cooling water L to continue to absorb the thermal energy of the coffee liquid C to improve the cooling efficiency, and then, the first outer conduit 212 is The discharged cooling water L can be reused by being recovered and flowing into the boiler 1. For example, the used cooling water L is heated in the boiler 1 and then flows into the brewing chamber as hot water required for brewing coffee. In other words, the used cooling water flows into the boiler for reuse. In addition to the water-saving effect, it can reduce the heating time and heating energy required for boiler heating, achieve the advantages and functions of water saving, energy saving and effective improvement of cooling efficiency, and supply for consumption. Instant coffee for instant drinking.

The different structural designs of the coffee machine of some embodiments of the present invention are described below.

Referring to FIG. 2 and FIG. 3 together, in an embodiment, in order to improve the cooling effect and save the volume space of the cooler, the first inner duct 211, the second inner duct 221, the first outer duct 212 or the second outer duct 222 can be configured as a spiral according to requirements, thereby improving the cooling effect of the cooling water channel in a limited space; for example, referring to FIG. 3, the coffee machine further comprises a base 4 and a casing 5, wherein the casing 5 is disposed on The base 4 is disposed, and the cooler 2 is disposed in the outer casing 5. The first outer duct 212 and the second outer duct 222 of the cooler 2 are spiral and have a total length of 3 meters. However, after being crimped, the volume can be greatly reduced and stored in the outer casing 5, thereby preventing the user from accidentally touching the pipeline. Burns and saves space in the coffee machine.

Referring to FIG. 2 , in an embodiment, the first outer conduit 212 and the first inner conduit 211 are coaxially disposed, and the second outer conduit 222 and the second inner conduit 221 are coaxially disposed. For example, the first inner duct 211, the second inner duct 221, the first outer duct 212, and the second outer duct 222 are all arranged in a spiral shape, but are not limited thereto. In another embodiment, the first inner tube 211 or the second inner tube 221 is made of stainless steel, which can increase the heat conduction effect and quickly transfer heat energy. In still another embodiment, the first outer conduit 212 or the second outer conduit 222 is made of Teflon material. In some embodiments, the outer edge of the first outer conduit 212 or the second outer conduit 222 does not have an insulating/insulating material, and the cooling and heat dissipation effects are enhanced.

Referring to FIG. 3, in an embodiment, the first outer water inlet end 212a of the first cooler 21 is disposed adjacent to the first inner water outlet end 211b to form a T-joint, and the first outer water outlet end 212b is first. The inner water inlet end 211a is adjacently disposed to form a T-shaped joint, which can increase assembly convenience and save volume. Similarly, the second cooler 22 can have a similar structure to increase assembly convenience and save volume. Regarding the respective component features, the connection relationship of the first cooler 21 and the second cooler 22, and related embodiments, please refer to the foregoing.

Referring to FIG. 4, in an embodiment, the coffee machine further includes a brewing chamber 6 in communication with the boiler 1. The brewing chamber 6 includes a liquid inlet port 61, a liquid outlet port 62 and a tank body 63. The tank body 63 communicates with the liquid inlet port 61 and the liquid outlet port 62, respectively, and receives the liquid from the boiler port 1 through the liquid inlet port 61. Hot water supply. In an embodiment, the coffee machine further comprises a grinding chamber (not shown) which grinds a small amount of coffee beans into coffee powder and delivers the coffee powder to the tank 63 of the brewing chamber 6, but not limited thereto. For example, the coffee machine can deliver coffee powder into the brewing chamber 6 either automatically or manually without the need to configure a grinding chamber.

In the present embodiment, the brewing chamber 6 receives the hot water from the boiler 1 through the liquid inlet 61, so that the hot water and the coffee powder to be brewed are mixed with each other in the tank 63 to be brewed into the coffee liquid C, and then passed through. The liquid outlet 62 discharges the freshly brewed coffee liquid C to the cooler 2, wherein the flow of the hot water and the coffee liquid is as indicated by the arrow.

In another embodiment, the boiler 1 includes a heater 10 disposed within the boiler 1. As described above, after the cooling water L passing through the cooler 2 is heated to warm water, it is discharged from the first outlet end 212b of the first outer duct 212 and recovered and returned to the boiler 1 for reuse, thereby having the effect of saving water. At this time, the heater 10 can heat the cooling water L discharged from the cooler 2 to the temperature required for brewing the coffee to supply the hot water required for the brewing chamber 6 to brew the coffee. Since the temperature of the cooling water L that has been subjected to the cooling operation has risen, the heater 10 only needs to provide a little heat energy to make the cooling water L after the heating recovery reach the preset brewing temperature, so that the cooler 2 can effectively reduce the boiler 1 Heating time and heating energy required for heating to achieve the advantages and effects of water saving and energy saving.

In some embodiments, the temperature of the coffee liquid discharged from the liquid outlet 22 of the brewing chamber 6 is between 80 and 100 degrees Celsius. If the user needs to brew a cup of warm coffee, the cooling process is performed through the cooler 2. On the other hand, if the user only needs hot coffee, there is no need to carry out a subsequent cooling process, and the derivative examples are described in detail below.

In order to selectively output hot coffee, in at least one embodiment, the coffee machine further includes a through tube 64. The straight pipe 64 has a water inlet end and a water outlet end, wherein the straight water end communicates with the liquid outlet 62 of the brewing chamber 6, and the straight water end communicates with the hot water outlet 31 of the coffee machine, that is, the straight pipe 64. Parallel to the cooler 2. Therefore, the hot coffee liquid C discharged from the liquid outlet 62 of the brewing chamber 6 can flow into the straight tube 64 to bypass the cooler 2, and is discharged through the hot discharge port 31 of the coffee machine to supply hot coffee. In another embodiment, the coffee machine further includes a switching solenoid valve Y64 disposed on the upstream side of the straight tube 64. The switching solenoid valve Y64 can accept and selectively open or close the flow path of the straight inlet end of the straight-through pipe 64 according to a control command of the controller 7, to control whether the coffee liquid C flows into the straight-through pipe 64. In some embodiments, the discharge port 3 of the coffee machine includes a hot discharge port 31 and a normal temperature discharge port 32, wherein the hot discharge port 31 communicates with the straight pipe 64, and the normal temperature discharge port 32 and the second portion The inner conduit 221 is in communication. According to the above configuration, the coffee machine can selectively flow the coffee liquid C discharged from the brewing chamber 6 into the cooler 2 or the straight tube 64 in accordance with a control command generated by the controller 7, thereby outputting warm coffee or hot coffee. The temperature of the warm coffee is less than or equal to 50 degrees Celsius, and the temperature of the hot coffee is between 80 degrees Celsius and 100 degrees Celsius.

In other embodiments, the coffee machine further includes a hot water pipe 11. The hot water pipe 11 has a hot water inlet end 11a and a hot water outlet end 11b, wherein the hot water inlet end 11a communicates with the boiler 1, and the hot water outlet end 11b communicates with the liquid inlet port 61 of the brewing chamber 6. In some embodiments, the coffee machine further includes a hot water solenoid valve Y11 disposed on the upstream side of the hot water inlet end 11a. The hot water solenoid valve Y11 can accept and selectively open or close the flow path of the hot water inlet end 11a of the hot water pipe 11 according to the control command of the controller 7, to control whether the hot water flows into the liquid inlet port 61 of the brewing chamber 6. For example, the controller 7 can determine whether the hot water temperature in the boiler 1 is greater than or equal to a preset temperature according to a temperature signal sensed by a temperature detector (not shown) in the boiler 1 to output hot water to The brewing chamber 6; conversely, when the hot water temperature is insufficient, the hot water pipe 11 will not supply hot water to the brewing chamber 6 to ensure the brewing quality of the coffee.

In summary, some embodiments of the present invention provide a coffee machine having a connected boiler and a cooling jacket that reduces the temperature of the coffee liquid by cooling water and recovers the cooling water into the boiler for reuse. The cooling jacket comprises a plurality of cascaded parallel coolers, respectively supplying cooling water to the plurality of outer conduits connected in series, providing the sections in a timely manner and replacing the cooling water in time, and improving the cooling efficiency by the multi-stage cooling method. Wherein, the cooling water of an outer conduit absorbs part of the heat energy and then is heated to be discharged into the cooling jacket. Then, the other outer conduit is again input into the low-temperature cooling water to continue to absorb the heat energy of the coffee liquid to improve the cooling efficiency, and then, The cooling water discharged from the conduit can be reused by being recovered into the boiler. In other words, the heated cooling water flows into the boiler for reuse. In addition to the water-saving effect, it can reduce the heating time and heating energy required for boiler heating, and has the advantages and functions of saving water, saving energy and effectively improving cooling efficiency, and supplying it to consumption. Instant coffee for instant drinking.

The embodiments described above are only for explaining the technical idea and characteristics of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement them according to the scope of the patent. That is, the equivalent changes or modifications made by the people in accordance with the spirit revealed by this creation should still be covered by the scope of the patent of this creation.

C‧‧‧coffee liquid

L‧‧‧Cooling water

Y11‧‧‧ hot water solenoid valve

Y64‧‧‧Switching solenoid valve

1‧‧‧Boiler

10‧‧‧heater

11‧‧‧ hot water pipe

11a‧‧‧ hot water inlet

11b‧‧‧ hot water end

2‧‧‧Cooling kit

211‧‧‧First internal catheter

211a‧‧‧First internal water inlet

211b‧‧‧First inner water outlet

212‧‧‧First outer catheter

212a‧‧‧First external water inlet

212b‧‧‧The first outflow

221‧‧‧Second inner catheter

221a‧‧‧Second inner inlet

221b‧‧‧Second inner water outlet

222‧‧‧Second outer catheter

222a‧‧‧Second external water inlet

222b‧‧‧Second out water terminal

23‧‧‧ Cooling tube

3‧‧‧Outlet

31‧‧‧Hot outlet

32‧‧‧Normal temperature outlet

4‧‧‧Base

5‧‧‧Shell

6‧‧‧ brewing room

61‧‧‧Inlet

62‧‧‧liquid outlet

63‧‧‧

64‧‧‧ straight pipe

7‧‧‧ Controller

1 is a schematic view of a coffee machine according to an embodiment of the present invention. 2 is a perspective view of a cooler of a coffee machine according to an embodiment of the present invention. 3 is a front perspective view of a coffee machine in accordance with an embodiment of the present invention. 4 is a schematic view of a coffee machine according to an embodiment of the present invention.

Claims (10)

A coffee machine comprising: a boiler; and a cooling jacket comprising: a first cooler comprising a first inner conduit and a first outer conduit covering the first inner conduit; wherein the first inner a first inner water inlet end of the conduit for receiving a coffee liquid, and a first inner water outlet end of the first inner conduit is for discharging the coffee liquid; a first outer water inlet end of the first outer conduit The first inner water outlet end is adjacently disposed and communicated with a cooling pipe to receive a cooling water, and a first outer water outlet end of the first outer conduit is disposed adjacent to the first inner water inlet end and communicates with the boiler And a second cooler, in series with the first cooler, comprising a second inner conduit and a second outer conduit covering the second inner conduit; wherein the second inner conduit is in the second inner The water inlet end is connected to the first inner water outlet end of the first inner tube to receive the coffee liquid, and the second inner water outlet end of the second inner tube is connected to one of the discharge ports of the coffee machine; the second a second outer water inlet end of the outer duct is disposed adjacent to the second inner water outlet end and communicates with the cold The tube is configured to receive the cooling water, and a second outlet end of the second outer conduit is disposed adjacent to the second inner inlet end to discharge the cooling water. The coffee machine of claim 1, wherein the boiler comprises a heater for heating the cooling water discharged from the first outlet end of the first cooler. The coffee machine of claim 1, wherein the first inner conduit and the second inner conduit of the cooling jacket are helical. The coffee machine of claim 1, further comprising: a base; and a casing disposed on the base, wherein the cooling jacket is disposed in the casing. The coffee machine of claim 1, further comprising: a brewing chamber connected to the boiler, the brewing chamber comprising a liquid inlet, a liquid outlet, and the liquid inlet and the liquid outlet And a tank body, wherein the tank body is used for accommodating a coffee powder body, and the hot water from the boiler is received through the liquid inlet to form the coffee liquid, and the coffee liquid is discharged through the liquid outlet. The coffee machine of claim 5, further comprising: a hot water pipe having a hot water inlet end connected to the boiler, and a hot water outlet end communicating with the liquid inlet port of the brewing chamber. The coffee machine of claim 6, further comprising: a hot water solenoid valve disposed on an upstream side of the hot water inlet for selectively opening or closing the hot water pipe. The coffee machine of claim 5, further comprising: the outlet port that communicates with the brewing chamber through the water inlet end, and the outlet end of the coffee machine is connected to the outlet of the coffee machine, wherein The straight tube is connected in parallel with the cooling jacket of the cooler. The coffee machine of claim 8, further comprising: a switching solenoid valve disposed on an upstream side of the straight water inlet for selectively opening or closing the straight tube. The coffee machine of claim 8, wherein the discharge port comprises a hot discharge port in communication with the straight pipe and a normal temperature discharge port in communication with the second inner pipe.