TR201507707A1 - PORTABLE COFFEE MACHINE WITH IMPROVED COFFEE COOKING PERFORMANCE AND ENERGY EFFICIENCY - Google Patents

Abstract

The present invention includes a cooking chamber (2) in which ground coffee (3a) or a coffee capsule (3b) is removably held, and a heater providing heating of the water (6) in the chamber (5) to a refillable chamber (5) where water (6) is stored a hot water preparation unit (4) and a hot water preparation unit (4) having a means to transfer the hot water (6) inside the chamber (5) from the chamber (5) to the cooking chamber (5) via a line (8). 4) relates to a portable coffee machine (1) comprising a thermal insulation material that provides thermal insulation from the external environment.

Description

DESCRIPTION COFFEE COOKING PERFORMANCE AND ENERGY EFFICIENCY UPGRADED PORTABLE COFFEE MAKER This invention is an electric coffee machine, in particular a portable electric coffee machine. relates to the machine.

Many methods are known for brewing coffee. Different customers' preferences and to meet their needs, in the markets, according to one of the known methods There are many electric coffee machines that cook coffee. Aforementioned An important quality criterion for electric coffee machines is energy efficiency.

Techniques for improving the energy efficiency of a coffee machine One method is thermal insulation that isolates the hot water generator from the outside environment. use of the material. The espresso machine is explained. The espresso machine in question is connected to a heater. a kettle with a cooking chamber connected to the kettle by a liquid passage and, through the liquid passage, the hot water in the kettle into the cooking chamber. It contains an electric piston that provides feeding. The heater will heat the water It is wrapped around the water heater in this way. The water heater is heated from the external environment. is insulated.

Generally, heat insulation material is not used in a coffee machine. In this case, the hot water inside the hot water preparation unit will heat up quickly. gives it to the external environment. As a result, the heating process is prolonged, the heater draws more power and increases energy consumption. In addition, prolonged heating In addition to the process, coffee brewing performance decreases. Therefore, the heat Insulation material is not used or insufficient thermal insulation is made. In this case, customer satisfaction decreases easily.

The aim of this invention is to eliminate the disadvantages of the prior art in a cost-effective way. energy efficiency with coffee brewing performance is the realization of an improved portable coffee machine.

This object is achieved by the portable coffee machine defined in claim 1.

The subject of the invention, which is defined respectively in the appended claims, to further developments achieved with the help of

In the portable coffee machine which is the subject of the invention, the water preparation unit is phase change material placed in such a way as to make heat exchange with the water in it contains. At least part of the electric heating unit, phase-changing close to material that changes phase to directly heat the material is placed.

The phase change material (PCM) used in this invention contains a large amount of latent heat. is hiding. The phase change material used in this invention is heat It passes from the solid phase to the liquid phase when assimilates and when it heats, it changes from the liquid phase to the solid phase. phase passes. The phase change material used in this invention is coffee. have a melting point equal to the ideal water temperature required for cooking has.

In one embodiment of the invention, the heater unit is composed of phase-changing materials and materials, respectively. Two separate electric heaters placed to heat the water inside the chamber contains the unit. When operating the portable coffee machine, first By operating the heater sub-unit, the phase-changing material can be phased from solid to liquid phase. is heated to change. Then the corresponding heater subunit By operating, the water reaches the ideal temperature required for coffee brewing. is heated. In this way, two heater subunits are operated one after the other. In particular, thanks to this structure, the phase-change material is primarily is heated. Thus, the latent heat storage capacity of the phase change material is the target amount of hidden water before heating the water to the ideal coffee cooking temperature. It is used to hide the heat. This invention is based on the rear of two heater subunits. It is not limited to back-running. Two heater subunits alternatively can also be operated at the same time.

In one version of this embodiment, the chamber is cylindrical and phase-changing. the material is at least circumferentially wrapped around the cylindrical chamber.

In this application, the heat subunits are in the form of rings and are phase-changing, respectively. material and is located on the bottom of the hopper.

In an alternative version of this application, the heat subunit under the hopper alternatively in disc form.

In another version of this application, the upper face of the phase change material In addition, another ring-shaped heater is placed. portable coffee While the machine is operating, the phase change material on the upper surface and phase The heater sub-units on the bottom face of the changing material, the phase changing material It is operated at the same time until it passes from the solid phase to the liquid phase. Next, operation of said two heater subunits is stopped and the chamber is the heater lower unit under it until the water reaches the ideal coffee brewing temperature. is being run. Thanks to this structure, the phase change material is faster and It can be heated homogeneously, and the latent heat of the phase change material is stored. capacity can be used effectively. This invention heater subunits It is not limited to its consecutive use. Heater subunits as an alternative can also be operated at the same time.

In an alternative embodiment of the invention, the heater unit is alternatively phased It is placed between the changing material and the chamber. Thanks to this structure, phase changing material and water can be heated at the same time and the latent heat storage capacity of the material can be used effectively.

In this application, the chamber and the phase change material are limited to a particular form. is not. In one version of this embodiment, the chamber is cylindrical and the phase The changing material is formed to surround the ring-shaped heater unit. circumferentially wrapped around the chamber.

In another alternative embodiment of the invention, the vessel is placed in between the heater unit. with a cavity in which two layers of phase-change material compressing It has two lower chambers separated from each other. Thanks to this structure, phase shifting material is primarily heated. Thus, the phase change material latent heat storage capacity is used effectively.

In one version of this application, the lower chambers are a channel, etc. by they are connected in such a way that there is liquid communication between them.

In another embodiment of the invention, the portable coffee machine is It has a valve that controls its flow into the cooking chamber. The valve in question preferably it is a one-way valve to prevent any reverse flow.

In another embodiment of the invention, the portable coffee machine is taken from the mains. electrically or optionally, eg mains connection disconnected, with electrical power from the rechargeable battery unit. is being run. In one version of this application, portable coffee A user interface located on the machine ensures that the operation of the battery Allows starting/stopping.

In another embodiment of the invention, the water preparation unit is a temperature sensor that detects the temperature of the water and one inside the chamber Heating the phase-change material with the electrical power taken from the network and other only the water in the reservoir, for example when the mains is disconnected Two separate heater units that heat with electrical power from the rechargeable battery unit contains.

In one version of this application, the second of these two heater units preferably, when the mains is disconnected, for example, the water in the reservoir It is a Peltier element that keeps its temperature at the ideal coffee brewing temperature.

In another embodiment of the invention, the portable coffee machine is It visually indicates the temperature of the water inside.

In another embodiment of the invention, the portable coffee machine is has support.

In another embodiment of the invention, the portable coffee machine the cup directly into a charger in the portable coffee machine or It has a rechargeable battery unit that can be connected inductively. Meet the glass in question, a temperature sensor and the detected temperature of the coffee in the glass. according to its temperature, with electrical power from its own rechargeable battery unit. an additional heating unit that allows the coffee in the cup to be heated, especially contains a Peltier element.

In another embodiment of the invention, the portable coffee machine The cup keeps the temperature of the coffee at the ideal drinking temperature.

Thanks to this invention, coffee brewing performance and energy efficiency An improved portable coffee machine is being realized. This invention temperature inside the chamber, especially thanks to the phase-change material. prevents rapid cooling of the water and for a relatively long time, for example, at the ideal coffee brewing temperature until the heating process is interrupted. are held. Thanks to this invention, especially the position of the heater unit Thanks to this, the latent heat storage capacity of the phase change material can be efficiently is used in . In this way, reheating the water in the chamber process is prevented or shortened as much as possible and the coffee process is accelerated. Thus, energy efficiency is improved. This Thanks to the invention, every time the coffee machine is used, the cooking process can be done quickly. is provided in this manner. Thus, user satisfaction is being increased.

Other advantages of the portable coffee machine of the invention are will be explained with reference to the attached figures; aforementioned from the figures Figure 1 shows in one embodiment of the invention a portable coffee machine and a is a partial schematic view of the glass.

Figure 2 shows that in one embodiment of the invention, the portable coffee machine has a water Partial vertical section schematic view of the preparation unit.

Figure 3, in another embodiment of the invention, the portable coffee machine Partial vertical section schematic view of the preparation unit.

Figure 4, in another embodiment of the invention, the portable coffee machine Partial vertical section schematic view of the preparation unit.

Figure 5, in another embodiment of the invention, the portable coffee machine Partial vertical section schematic view of the preparation unit.

The parts in the figures are numbered one by one and the corresponding numbers are given below: Portable coffee machine cooking room ground coffee coffee capsule hot water preparation unit lower chamber lower chamber First heater subunit Second heater lower unit Third heater subunit phase change material Layer (PCM) Layer (PCM) Portable coffee machine (1), ground coffee (3a) or coffee capsule (3b) a cooking chamber (2) where it is removable and the water (6) a refillable reservoir (5) in which the water in the reservoir (5) is stored (6) an electric heating unit (7) and inside the chamber (5) hot water (6) through a line (8) from the hopper (5) to the cooking chamber (5) a hot water preparation unit (4) having a means for transferring and thermally insulating the hot water preparation unit (4) from the outside environment. It contains a heat insulation material (not shown in the figures) that provides (Figure 1 to Figure 5).

In the portable coffee machine (1), the subject of the invention, the hot water preparation unit (4), The phase placed in such a way as to exchange heat with the water (6) in the chamber (5) It contains material (9) that changes it. At least part of the heating unit (7), phase changer to directly heat the phase change material (9) it is placed near the material (9) (Fig. 1 to Fig. 5).

In one embodiment of the invention, the phase change material (9) is placed in the lowest part of the chamber (5). at least some of it is wrapped around it. In this embodiment, the heater unit (7), a first heater subunit (7a) and a second heater subunit (7b).

The first heater subunit (721) and the second heater subunit (7b) are each separately can be controlled. First heater subunit (7a), phase changer It is placed in a way that will heat the material (9) directly. second heater bottom unit (7b) is placed to heat the chamber (5) directly. Receptacle (5) is manufactured from a material with relatively high thermal conductivity. (Figure 2 to Figure 3).

In one version of this embodiment, the chamber 5 is cylindrical. Phase The changing material (9) is in the form of annular and the lateral surface of the chamber (5) circumferentially wrapped around it, The first heater subunit (7a) It is in the form of and directly on the underside of the phase change material (9). is placed. The second heater subunit (7b) is in the form of a ring and directly it is placed on the lower face of the chamber (5) (Fig. 2 to Fig. 3).

In an alternative version of this application, the second heater subunit (7b) alternatively in disc form (not shown in the figures) and directly it is placed on the lower face of the chamber (5) (Fig. 2 to Fig. 3).

In another version of this application, the heater unit (7) has an additional it has the third heater subunit (7G). The third heater subunit (70) is as controllable. Third heater lower unit (70) ring It is in the form of and directly on the upper surface of the phase change material (9). In another alternative embodiment of the invention, phase change material (9) wraps around at least a part of the chamber (5). This alternative In practice, the heating unit (7) is placed between the phase change material (9) and the chamber (5). In one version of this alternative embodiment, the chamber 5 is cylindrical.

The phase change material (9) is in the form of annular and the lateral surface of the chamber (5) it is wrapped around it (Figure 4).

In another alternative embodiment of the invention, the reservoir (5) is filled with water (6) in each It has two lower chambers (5a, 5b) in which it is stored. In this alternative embodiment, the phase the changing material (9), the facing outer surfaces of the lower chambers (5a, 5b) respectively. It is in the form of two layers (9a, 9b) wrapped around their surfaces. Heating unit (7) two It is placed between the layers (9a, 9b) (Figure 5).

In another embodiment of the invention, the hot water preparation unit (4) is external. thermal insulation material placed in such a way as to thermally isolate it from the environment (not shown in the figures) polyurethane foam material and/or one or includes multiple vacuum insulation panels (VIPs) (Figure 1 to Figure 5).

In another embodiment of the invention, the portable coffee machine (1) uses hot water (6) has a valve (10) that controls its flow through the line (8). Valve (10), It is located in the flow direction of the bowl (5) and in the opposite direction of the flow of the cooking chamber (2). (Figure 1 to Figure 5).

In another embodiment of the invention, the portable coffee machine (1) is connected to the mains. an electrical power unit (not shown in the figures), connected to one or more a first battery unit (see figures) in which the extra rechargeable battery is placed. not shown), the first battery with electrical power from the electric power unit a charging unit that allows charging each battery in the unit (not shown in the figures), a form that allows the user to enter information. user interface (not shown in the figures) and electrical power unit battery unit, charger, user interface and hot water generator (4) a control unit (not shown in the figures) that allows contains. In this application, the portable coffee machine (1) is connected to the mains. It is operated with the electrical power taken from the electric power unit.

The portable coffee machine (1) is disconnected from the first battery unit when it is not connected to the mains. It is powered by received electrical power (Figure 1 to Figure 5).

In another embodiment of the invention, the vehicle providing hot water (6) is the reservoir. (5) a device that pressurizes the air above the hot water in it. includes an air pump (not shown in the figures) (Figure 1 to Figure 5).

In another embodiment of the invention, the hot water preparation unit (4) furthermore, a first additional heater unit that provides heating of the water (6) inside the chamber (5) (not shown in the figures) and the temperature of the water (6) inside the chamber (5). a first temperature sensor (not shown in the figures) to detect contains. In this embodiment, the first control unit is located inside the chamber (5). according to the temperature of the water (6), when the electric power unit is connected to the mains, the heating unit (7) or when the electric power unit is not connected to the mains, the power taken from the first battery unit it operates the first additional heater unit by electrical power (Fig. 1 to Fig. 5).

In one version of this application, the first control unit is the electric power unit. When it is not connected to the mains, it can set the temperature of the water (6) in the reservoir (5) to a first the first additional heater unit to keep it within the predetermined range. (Figure 1 to Figure 5). In this application, the first The specified range corresponds to an ideal water temperature for brewing coffee. is coming.

In another version of this application, the first additional heater unit is a Peltier element (not shown in the figures).

In another embodiment of the invention, the portable coffee machine (1) also has the hopper. (5) by means of an indicator that visually displays the temperature of the water (6) inside (not shown in the figures) (Figures 1 to 5).

In one version of this application, the indicator means one or more LEDs. (not shown in the figures).

In an alternative version of this application, through said indicator alternatively, it includes a screen (not shown in the figures).

In another embodiment of the invention, the portable coffee machine (1) also has A glass (l 1) in which the coffee dripping from the brewing chamber (2) is filled it includes a support (12) on which it is placed (Figs. 1 to Fig. 5).

In another embodiment of the invention, the portable coffee machine (1) also has a or portable coffee shop with multiple rechargeable batteries charged directly or inductively with the charging unit of the machine (l), and each battery in it is discharged from the electric power unit by the first control unit. a second battery unit charged by received electrical power (see figures not shown), a cup (11) containing the second from the battery pack or optionally from the portable coffee machine (l) a second additional heater unit that allows it to be heated with the received electrical power (not shown in the figures), the temperature of the coffee in the glass (1 l) a second temperature sensor (not shown in the figures) to detect and the second additional heater unit according to the temperature of the coffee in the glass (11). includes a second control unit (not shown in the figures) that operates In another embodiment of the invention, the second control unit is located inside the cup (II). keeping the temperature of the coffee within a second predetermined range The second additional heater unit is operated (Figure 1).

The temperature of the coffee in the cup (II) preferably first 90°C to 95°C are in between. Then the temperature drops to the ideal drinking temperature. This In practice, the second predetermined range corresponds to the ideal drinking temperature. is coming.

In another embodiment of the invention, the second additional heater unit is a Peltier element. Thanks to this invention, coffee brewing performance and energy efficiency An improved portable coffee machine (1) is realized. Meet The portable coffee machine (1) in question is produced by cooking a certain type of coffee. it is not limited and different pressure, temperature and quantity values for hot water (6) It allows you to cook different types of coffee such as filter coffee, espresso by adjusting the it provides.

Claims (13)

REQUIREMENTS - a cooking chamber (2) in which ground coffee (3a) or a coffee pod (3b) is kept, - a refillable chamber (5) where water (6) is stored, an electric heating unit that heats the water (6) in the chamber (5) (7) and a hot water preparation unit (4) having a means by which the hot water (6) in the chamber (5) is transferred from the chamber (5) to the cooking chamber (5) via a line (8), and - the hot water preparation unit ( 4) the phase change material (9) placed in such a way that it is thermally insulated from the external environment by heat exchange with the water (6) inside the chamber (5), and at least some of it, close to the phase change material (9) so as to directly heat the phase change material (9) The hot water preparation unit (4) including the heating unit (7) placed inside and the phase change material (9) wrapped around at least a part of the chamber (5) and a primary heat sink placed to directly heat the phase change material (9) and can be operated upon request. A portable coffee machine (1), characterized by a heater unit (7) comprising a pusher sub-unit (7a) and a second heater sub-unit (7b) that can be operated optionally and placed in such a way as to directly heat the chamber (5). 2. The cylindrical chamber (5), the phase change material (9) wrapped around the lateral surface of the ring-shaped chamber (5), the first heater lower unit (7a) which is in the ring form and placed directly on the underside of the phase change material (9) and a portable coffee machine (1) as in Claim 1, characterized by a second heater sub-unit (7b) which is in the form of a ring or disc and is placed directly on the lower face of the chamber (5). 3. A portable coffee machine (1) as in Claim 2, characterized by a heating unit (7), which can be operated upon request, is in the form of a ring and includes a third heating sub-unit (7c) placed directly on the phase-change material (9). 4. A portable coffee machine as in Claim 1, characterized by the phase-change material (9) wrapped at least in one part of the chamber (5) and the heating unit (7) located between the phase-change material (9) and the chamber (5) (one). 5. A portable coffee machine as in Claim 4, characterized by a cylindrical chamber (5), a ring-shaped phase change material (9) wrapped around the lateral surface of the chamber (5), and an annular heating unit (7). one). 6. The chamber (5), each of which has two lower chambers (5a, 5b) in which water (6) is stored, phase-change material (in the form of two layers (9a, 9b) wrapped around the oppositely facing outer surfaces of the lower chambers (5a, 5b) respectively). 9) and a portable coffee machine (1) as in Claim 1, characterized by the heating unit (7) placed between two layers (9a, 9b). 7. Any one of claims 1 to 6, characterized by a valve (10) located in the flow direction of the chamber (5) and opposite the flow direction of the cooking chamber (2) and controlling the flow of hot water (6) along the line (8). such as a portable coffee machine (1). - an electric power unit connected to the mains, - a first battery unit in which one or more rechargeable batteries are placed, - a charging unit that allows charging each battery in the first battery unit with the electrical power taken from the electric power unit, - allowing information to be entered by the user A portable coffee machine according to any one of claims 1 to 7, characterized by a user interface and a first control unit for controlling the electric power unit, the first battery unit, the charging unit, the user interface and the hot water preparation unit (4). (one). - The hot water preparation unit (4), which includes a first additional heater unit that provides heating of the water (6) in the chamber (5), and - a first temperature sensor that allows the temperature of the water (6) in the chamber (5) to be detected, and the water in the chamber (5) (6) characterized by the first control unit operating the heater unit (7) with the electrical power taken from the electrical power unit when the electrical power unit is connected to the mains, or the additional heater unit of the first with the electrical power taken from the first battery unit when the electrical power unit is not connected to the mains, according to its temperature, A portable coffee machine (1) as in claim 8. 10. A portable coffee machine (1) as in Claim 9, characterized by a first control unit operating the first additional heater unit in such a way that the temperature of the water (6) inside the chamber (5) is maintained within a first Predetermined range. 11. A portable coffee machine (1) as in any one of Claims 1 to 10, characterized by an indicator that visually displays the temperature of the water (6) in the reservoir (5). - a second battery unit in which one or more rechargeable batteries are placed, charged directly or inductively with the charging unit of the portable coffee machine (1) and each battery inside is charged by the first control unit with electrical power taken from the electric power unit, It is characterized by a glass (11) containing a second control unit, which allows it to be heated with electrical power from the battery unit or optionally the portable coffee machine (1) - a second temperature sensor that allows the temperature of the coffee to be detected, and - operates the second additional heater unit according to the temperature of the coffee inside. A portable coffee machine (1) as in any one of claims 1 to 11, claimed. 13. A portable coffee machine (1) as in Claim 12, characterized by a second control unit operating the second additional heater unit so as to maintain the temperature of the coffee in the cup (II) within a second predetermined range.