CN109222656A - coffee machine - Google Patents

Abstract

The present invention provides a kind of coffee machines, it is intended to solve the problems, such as that the heating efficiency of the heat generating device of coffee machine in the prior art is lower.The coffee machine includes: fuselage；Water tank can be placed on the fuselage and for providing water to be heated；Heat-generating pipe is mounted in the fuselage and for heating to the water provided by the water tank；And brew chamber, it is used to accommodate ground coffee and is used to receive the hot water heated through the heat-generating pipe, to be brewed by the received hot water of institute to the ground coffee.The heat-generating pipe includes water inlet, water outlet and the heating pipe being arranged between the water inlet and the water outlet, the outside of the heating pipe has heating film, and the heating film can generate heat to heat the water for flowing through the heating pipe when being powered.The heat-generating pipe of coffee machine of the invention uses membrane type heating technique, and heating efficiency is high, and the accurate control of temperature easy to accomplish.

Description

Coffee machine

Technical field

The present invention relates to for brewing coffee beverage electric equipment products field more particularly to a kind of coffee machine.

Background technique

As the improvement of people's living standards, coffee beverage starts to be liked by people, and becomes people and especially chase after Seek the daily drinks of quality of the life person.The production method of current coffee beverage mainly has: using instant formula coffee brewing, using Existing ground coffee oneself carries out brewed in coffee machine and grinds coffee bean and further brewed etc. using coffee machine scene.

Above-mentioned coffee machine has heat generating device usually to heat to the water for flowing through the heat generating device, and will be heated Hot water shower to ground coffee on brew obtained coffee beverage.

As shown in Figure 1, as a kind of schematic cross-section of the coffee machine of the prior art, it is special to be disclosed in Chinese utility model In benefit application the 201020553983.9th (Authorization Notice No. is 201861447 U of CN).The coffee machine includes that main body (is not schemed Show), water tank 1, float trap 2, container 3, water inlet silicone tube 4, heat-generating pipe 5, check valve 6, the fixed bracket 7 of float trap, water outlet silica gel Pipe 8 and U-bend 9 etc..The heat-generating pipe 5 is tightly attached on the U-bend 9, to provide heat to the U-bend 9 in heating power Amount.

The working principle of the coffee machine shown in FIG. 1 is: quantitative water is added to water tank 1, due to the pressure of water in water tank 1 It acts on and washes float trap 2 open, water flows into container 3, and the floating of float trap 2 under the buoyancy of water in container 3 blocks water tank 1 Collector nozzle, the water in container 3 washes check valve 6 open under atmospheric pressure, and water is heated by U-bend 9, from U-bend 9 Water outlet stream by water outlet silicone tube 8 and fill the funnel of ground coffee, the coffee beverage being brewed to finally flows in glass.

This heat generating device being combined by heat-generating pipe 5 and U-bend 9 is that (what is generallyd use is electricity to general electrothermal tube Hinder heating coil), since the fitting between its heat-generating pipe 5 and U-bend 9 is difficult to reach close contact and heat-generating pipe 5 not The part contacted with U-bend 9 is easy to distribute heat, therefore the efficiency of its heating is lower.In addition, due to heat-generating pipe 5 itself Fever and heat dissipation need certain time, therefore are not easy accurately to control the temperature of provided hot water.

Other relevant coffee machines are referring also to No. 201610023861.0 (Publication No. CN of Chinese invention patent application 105520636 A), Chinese utility model patent application the 201620380398.0th (Authorization Notice No. be CN 205947660 U) etc..Their heat generating device also uses similar U-shaped heat-generating pipe.

Also there is the coffee machine with coffee bean grinder structure in the prior art, this can be found in Chinese invention patent application Number 201610252994.5 (105962785 A of Publication No. CN), Chinese invention patent application the 201710083942.4th (106580105 A of Publication No. CN) etc..It is using class that the heat generating device of these coffee machines with coffee bean grinder structure is also mostly As U-shaped heat-generating pipe.

Therefore, it is necessary to provide a kind of coffee machine that can overcome disadvantages mentioned above.

Summary of the invention

In order to solve the deficiency of coffee machine in the prior art, the present invention provides a kind of coffee machine.

The technical proposal for solving the technical problem of the invention 1 is to provide a kind of coffee machine, which includes: machine Body；Water tank can be placed on the fuselage and for providing water to be heated；Heat-generating pipe is mounted on the fuselage It is interior and for being heated to the water provided by the water tank；And brew chamber, it is used to accommodate ground coffee and for receiving The hot water heated through the heat-generating pipe, to be brewed by the received hot water of institute to the ground coffee.The heat-generating pipe includes Water inlet, water outlet and the heating pipe being arranged between the water inlet and the water outlet, the outside of the heating pipe With heating film, the heating film can generate heat to heat the water for flowing through the heating pipe when being powered.

Technical solution 2: coffee machine according to technical solution 1, wherein the global shape of the heat-generating pipe is in U-shape, and makes It obtains the water inlet and the water outlet is located at identical height.

Technical solution 3: coffee machine according to technical solution 1, wherein the global shape of the heat-generating pipe is in J-shaped, is made The position for obtaining the water outlet is higher than the position of the water inlet.

Technical solution 4: the coffee machine according to any one of technical solution 1-3, wherein the heating tube of the heat-generating pipe The circular in cross-section in road is rectangular.

Technical solution 5: the coffee machine according to any one of technical solution 1-3, wherein the heating tube of the heat-generating pipe Road includes curvature portion and planar section and makes the cross section semicircular in shape of the heating pipe.

Technical solution 6: according to coffee machine described in technical solution 5, wherein the curvature portion and the planar section with The mode of sealing is combined together.

Technical solution 7: according to coffee machine described in technical solution 5, wherein the curvature portion and the planar section with The mode of sealing welds together.

Technical solution 8: according to coffee machine described in technical solution 5, wherein the planar section includes heat-conducting plate, in institute It states and is provided with electrical insulating film on heat-conducting plate, and be provided with the heating film on the electrical insulating film.

Technical solution 9: coffee machine according to technical solution 1, wherein the coffee machine further includes being mounted on the machine Coffee bean box and coffee bean grinder structure with it, the coffee bean box is for accommodating coffee bean and being provided to the coffee bean The coffee bean grinder structure, the coffee bean grinder structure are used for the coffee bean grinding at ground coffee and by the coffee Powder is provided to the brew chamber.

Technical solution 10: the coffee machine according to technical solution 1 or 9, wherein the coffee machine further includes being arranged in institute It states support base at the bottom of fuselage and can be placed at the container on the support base, the container, which is used to collecting, to be brewed to Coffee, and heater is equipped in the support base.

Compared with the prior art, coffee machine of the invention mainly has the advantages that.First, coffee machine of the invention Heat-generating pipe use membrane type heating technique, heating film therein is set up directly on the outside of heating pipe, therefore heating film is logical The heat that electric adstante febre generates can be immediately passed to heating pipe, this makes heating efficiency height.Second, since heating film is logical High temperature can be quickly generated when electric, and when power is off can rapid dispersion heat, therefore provided by being easy to accurately control The temperature of hot water.Third, when the global shape of the heat-generating pipe of coffee machine of the invention is higher than the position of water outlet in J-shaped When the position of water inlet, the cold water in the part adjacent with water outlet of the heating pipe of the heat-generating pipe can just have been opened in coffee machine It is just supplied to brew chamber after being sufficiently heated when beginning work, avoids that have temperature when coffee machine is just started to work not high enough The problem of water is discharged.

In the description below to the drawings and specific embodiments, the thin of one or more embodiments of the invention will be illustrated Section.From these description, attached drawing and claims, other features, objects, and advantages of the present invention can be understood.

Detailed description of the invention

It can refer to attached drawing and the present invention more specifically described by embodiment, wherein attached drawing is not drawn to scale, In attached drawing:

Fig. 1 is a kind of schematic cross-section of the coffee machine of prior art；

Fig. 2 is the assembling schematic perspective view of coffee machine according to an embodiment of the invention；

Fig. 3 is a schematic cross-section of coffee machine shown in Fig. 2；

Fig. 4 is another schematic cross-section of coffee machine shown in Fig. 2；

Fig. 5 is the exploded perspective schematic diagram of the major part of coffee machine shown in Fig. 2；

Fig. 6 is the decomposition floor map of the major part of coffee machine shown in Fig. 2；

Fig. 7 is the stereoscopic schematic diagram of the heat-generating pipe of coffee machine according to an embodiment of the invention；

Fig. 8 is the cross-sectional view of heat-generating pipe shown in Fig. 7；

Fig. 9 is the cross-sectional view of the heat-generating pipe of coffee machine according to another embodiment of the invention；And

Figure 10 is the cross-sectional view of the heat-generating pipe of coffee machine according to still another embodiment of the invention.

Specific embodiment

The present invention is described in more detail below in conjunction with specific embodiment.Those skilled in the art should manage Solution, these descriptions only list some specific embodiments of the present invention, without any restrictions to the present invention and its protection scope.

It, can be in addition, for ease of the relationship of one component of description or component and another component shown in the drawings or component Space relative terms used herein, such as " lower part ", " top " and similar term.It is to be understood that space relative terms are pre- Phase covers different direction of the device in using and operating other than the discribed orientation of attached drawing.For example, if it is attached Device in figure is reverse, is described as be in the component of other components or component " lower part " and then may be directed to other components or component " top ".

Referring to figure 2., Fig. 3 and Fig. 4, they show one of coffee machine 100 according to an embodiment of the invention Assembling schematic perspective view and two schematic cross-sections.The coffee machine 100 includes mainly fuselage 10, water tank 20, heat-generating pipe 30, brews Room 40, coffee bean box 50, coffee bean grinder structure 60, support base 70 and container 80.

Shown referring to figure 5 and figure 6 together, which may include upper fuselage 11 and lower fuselage 15.Fuselage 11 can wrap on this Include body cover 12 and the motor PCB 13 being arranged in upper fuselage 11 and motor PCB box 14.The lower fuselage 15 may include control Panel 16, lower body cover 17 and multiple (such as three or four) glue feet 18 processed.Fuselage 11 and lower fuselage 15 and upper machine on this Body lid 12 and the combination of lower body cover 17 form various accommodation spaces and installation site, to accommodate or install each of coffee machine 100 Kind necessary parts.Certainly, which can not also use the form of fuselage 11 and the big half of lower fuselage 15 this two, as long as It can be realized the purpose of above-mentioned receiving or installation.

The support base 70 is arranged at the bottom of the fuselage 10, and heater 71, and the branch can be equipped in the support base 70 Support seat 70 may also include decorative panel 72, thermal insulation board 73 etc..The top position of support base 70 is arranged in the decorative panel 72, is used for and appearance Device 80 contacts.The thermal insulation board 73 is located at 71 lower section of heater, is transmitted to lower body cover 17 with the heat for preventing heater 71 from generating.It should Heater 71 is mainly used for heating, keeps the temperature coffee beverage in the container 80.

The water tank 20 may include water tank main body 21, tank lid 22 and tank seal plug 23.The water tank 20 can be placed at this On fuselage 10 and for providing water to be heated.Wherein, when the water tank 20 is picked up from the fuselage 10, the tank seal plug 23 are used for the bottom of sealing radiator 20 and avoid leak；Also, when the water tank 20 is placed on the fuselage 10, the tank seal Plug 23 is opened and is supplied water to heat-generating pipe 30.

The coffee bean box 50 is mounted on the fuselage 10, which is mounted in the fuselage 10.The coffee For accommodating coffee bean and coffee bean being provided to the coffee bean grinder structure 60, which uses coffee beans case 50 In being provided to the brew chamber 40 by the coffee bean grinding at ground coffee and by the ground coffee.The coffee bean box 50 may include coffee bean Box main body 51, coffee bean case lid 52 and coffee bean baffle 53.The coffee bean baffle 53 can close or open this by driving movement The bottom of coffee bean box main body 51, to discharge a certain amount of coffee bean when opening to the coffee bean grinder structure 60.The coffee Beans grinding mechanism 60 may include that cutter 61, bottom knife 62, motor 63, beans slot 64, beans slot sealing cover 65, beans scrape wheel 66 etc..It should Cutter 61 and bottom knife 62 cooperate and grind under the driving of motor 63 to coffee bean.The beans slot sealing cover 65 is mounted on On beans slot 64, the ground coffee being ground into can scrape the rotation of wheel 66 by beans and be conveyed to the brew chamber 40.The bottom of the beans slot 64 Exit can also be equipped with powder sealing block 67.Powder sealing block 67, which should be gone out, may be driven and seal and be somebody's turn to do when brewing to ground coffee The outlet at bottom of beans slot 64, to avoid vapor from entering in the beans slot 64.

The heat-generating pipe 30 is mounted in the fuselage 10 and for heating to the water provided by the water tank 20.The fever Pipe 30 includes water inlet 31, water outlet 32 and the heating pipe 33 being arranged between the water inlet 31 and water outlet 32.The water inlet Mouth 31 can connect silicone tube 311 by cold water and be connected to the water tank 20.The water outlet 32 can by hot water connect silicone tube 321, Water-supply-pipe 322 and water outlet box 323 and by delivery to the brew chamber 40.The cold water is connected in silicone tube 311 and can be equipped with unidirectionally Valve 324(is shown in Figure 6), to guarantee that water only flows to water outlet 32 from the water inlet 31.

The brew chamber 40 is used to accommodate ground coffee and for receiving the hot water heated through the heat-generating pipe 30, so as to by being connect The hot water of receipts brews the ground coffee.The brew chamber 40 may include funnel box 41 and funnel strainer 42.In use, this is brewed Room 40 can be matched with the left sliding rail 43 of the funnel being mounted on upper fuselage 11 and the right sliding rail 44 of funnel, to make 40 edge of brew chamber The left sliding rail 43 of funnel and the right sliding rail 44 of funnel be inserted into the space that upper fuselage 11 limits and carry out coffee.The brew chamber 40 may be used also It is pulled out along the left sliding rail 43 of funnel and the right sliding rail 44 of funnel from upper fuselage 11, to topple over bean dregs and cleaning funnel box 41 and funnel Strainer 42.

The container 80 can be placed on the support base 70, and for collecting the coffee being brewed to.The container 80 can be Glass container, ceramic vessel or canister etc..

Together referring to shown in Fig. 7 and Fig. 8, the outside of the heating pipe 33 of the heat-generating pipe 30 has heating film 34, the fever Film 34 can generate heat to heat the water for flowing through the heating pipe 33 when being powered.In one embodiment, the hair The heating pipe 33 of heat pipe 30 may include curvature portion 35 and planar section and make the cross section of the heating pipe 33 in semicircle (semicircle is not limited to be formed by semicircle with circular arc by the straight line by the center of circle shape, as long as by one section of circular arc and directly Line is formed by shape in the range of term " semicircle " of the invention).The curvature portion 35 can be stainless steel, copper, aluminium Equal metals, and can be suppressed by one integral piece of material.The planar section may include heat-conducting plate (such as stainless steel plate, copper sheet, aluminium Plate etc.) 36.It is provided with electrical insulating film 37 on the heat-conducting plate 36, and is provided with the heating film 34 on the electrical insulating film 37. Also settable temperature sensor 38, the temperature sensor 38 can be set to directly contact with the heat-conducting plate 36 on the heat-conducting plate 36, To detect the temperature of the heat-conducting plate 36.The temperature sensor 38 is preferably NTC(negative temperature coefficient, Negative Temperature Coefficient) temperature sensor.It is exhausted that the heating film 34 can be formed in the electricity for example, by the mode of printing On velum 37.The heating film 34 is distributed generally evenly on the heat-conducting plate 36 in the form of conductive pattern, so as to thermally conductive to this Plate 36 is uniformly heated up.The heating film 34 can also be connect by two conductive terminals 341 with temperature controller (not shown).

As shown in fig. 7, the global shape of the heat-generating pipe 30 can be in J-shaped, so that the position of the water outlet 32 is higher than the water inlet The position of mouth 31.The curvature portion 35 and the planar section (the especially heat-conducting plate 36) are combined together in a sealing manner； Preferably, the curvature portion 35 and the planar section (the especially heat-conducting plate 36) weld (such as laser in a sealing manner Weld the weld seam 39 generated) together.The mode of sealing described herein refer to the heat-generating pipe 30 except water outlet 32 and into Other parts except the two ports of the mouth of a river 31 be sealing and it is watertight.

In another embodiment, the global shape of the heat-generating pipe of coffee machine of the invention can also be in U-shape, so that into The mouth of a river and water outlet are located at identical height.That is, the U-shaped heat-generating pipe in addition to inlet and outlet be located at identical height it Outside, other features are identical as above-mentioned heat-generating pipe 30.Certainly, the global shape of the heat-generating pipe of coffee machine of the invention can also be in Linear, such as the vertical top for making water outlet be located at water inlet.

In addition, as shown in figure 9, the cross section of the heating pipe 92 of another heat-generating pipe 91 of coffee machine of the invention can also It is rounded.The circle heat-generating pipe 91 can roll by the material of full wafer, engage (for example, riveted or welding) forms, or is cut by two Face is that semicircular tubing engages；At this point, the whole of the heating pipe 92 need to be arranged in electrical insulating film 93 and heating film 94 Or on a part of outer surface, preferably it is arranged on the underlying surface of heating pipe 92.The electrical insulating film 93 and fever The set-up mode of film 94 can be similar with above-mentioned electrical insulating film 37 and heating film 34.

Again as shown in Figure 10, the cross section of the heating pipe 96 of another heat-generating pipe 95 of coffee machine of the invention can also be in Rectangular (for example, square or rectangular).The rectangular heat-generating pipe 95 can be rolled by the material of full wafer, be engaged (for example, riveted or weldering Connect) it forms, or engaged by two sections for L-shaped plate, or engaged by four sections for plate shaped plate；This When, electrical insulating film 97 and heating film 98 need to be arranged on all or part of outer surface of the heating pipe 96, preferably be arranged On the underlying surface of heating pipe 96.The set-up mode of the electrical insulating film 97 and heating film 98 can be with above-mentioned electricity absolutely Velum 37 is similar with heating film 34.

Coffee machine of the invention may also include the other necessary parts for realizing its function, these components are those skilled in the art Known to member, repeats no more herein.

Compared with the prior art, coffee machine of the invention has the advantages that.First, the hair of coffee machine of the invention Heat pipe uses membrane type heating technique, and heating film therein is set up directly on the outside of heating pipe, therefore heating film is in the hair that is powered The heat generated when hot can be immediately passed to heating pipe, this makes heating efficiency height.Second, since heating film is when being powered High temperature can quickly be generated, and when power is off can rapid dispersion heat, therefore be easy to accurately control provided hot water Temperature.Third, when the global shape of the heat-generating pipe of coffee machine of the invention makes the position of water outlet be higher than water inlet in J-shaped When the position of mouth, the cold water in the part adjacent with water outlet of the heating pipe of the heat-generating pipe can just start work in coffee machine As when be sufficiently heated after be just supplied to brew chamber, avoid had when coffee machine is just started to work temperature it is not high enough water row Out the problem of.

The present invention is described to being given for example only property of the above, is not intended to restrict the invention.It should be pointed out that for For those skilled in the art, several improvement, modification and variation can be made to the present invention, but these are improved, modification It is being regarded as being within the scope of the present invention without departing from the spirit of the invention with deformation.

Claims (10)

1. a kind of coffee machine comprising:

Fuselage；

Water tank can be placed on the fuselage and for providing water to be heated；

Heat-generating pipe is mounted in the fuselage and for heating to the water provided by the water tank；With

Brew chamber is used to accommodate ground coffee and is used to receive the hot water heated through the heat-generating pipe, so as to received by institute Hot water brews the ground coffee；

It is characterized by:

The heat-generating pipe includes water inlet, water outlet and the heating pipe being arranged between the water inlet and the water outlet, The outside of the heating pipe has heating film, and the heating film can be generated heat when being powered so as to flowing through the heating pipe Water heated.

2. coffee machine according to claim 1, which is characterized in that the global shape of the heat-generating pipe is in U-shape, so that described Water inlet and the water outlet are located at identical height.

3. coffee machine according to claim 1, which is characterized in that the global shape of the heat-generating pipe is in J-shaped, so that described The position of water outlet is higher than the position of the water inlet.

4. coffee machine according to any one of claim 1-3, which is characterized in that the cross of the heating pipe of the heat-generating pipe Section is rounded or rectangular.

5. coffee machine according to any one of claim 1-3, which is characterized in that the heating pipe of the heat-generating pipe includes Curvature portion and planar section and the cross section semicircular in shape for making the heating pipe.

6. coffee machine according to claim 5, which is characterized in that the curvature portion and the planar section are to seal Mode is combined together.

7. coffee machine according to claim 5, which is characterized in that the curvature portion and the planar section are to seal Mode welds together.

8. coffee machine according to claim 5, which is characterized in that the planar section includes heat-conducting plate, described thermally conductive It is provided with electrical insulating film on plate, and is provided with the heating film on the electrical insulating film.

9. coffee machine according to claim 1, which is characterized in that the coffee machine further includes being mounted on the fuselage Coffee bean box and coffee bean grinder structure, the coffee bean box is for accommodating coffee bean and the coffee bean being provided to the coffee Coffee beans grinding mechanism, the coffee bean grinder structure are used to provide by the coffee bean grinding at ground coffee and by the ground coffee To the brew chamber.

10. according to claim 1 or coffee machine described in 9, which is characterized in that the coffee machine further includes being arranged in the fuselage Bottom at support base and can be placed at the container on the support base, the container for collecting the coffee being brewed to, And heater is equipped in the support base.