CN204363766U - The heating system of coffee machine - Google Patents

Abstract

A heating system for coffee machine, comprises water receiver, check valve, heater and temperature-control protector, it is characterized in that: be separated into upper water storage cavity and lower water storage cavity by integrated interlayer in water receiver; Check valve is provided with in lower water storage cavity, heater is provided with bottom lower water storage cavity, instantly when the water of water storage cavity adds thermal expansion, under the effect of water expansive force, inlet opening on closed check valve interlayer, is provided with the outlet pipe of through upper water storage cavity and lower water storage cavity in water receiver, the hot water after expansion is after outlet pipe is discharged, cold water flows in lower water storage cavity from upper water storage cavity under gravity, is so a heat cycles.Conventional coffee machine water tank is separated into upper and lower water storage cavity by the utility model, bottom lower water storage cavity, directly arrange heater heat, can as conventional coffee machine mode of heating, heat by steam pressure while coffee of stewing, and do not need to flow out pot coffee again after the disposable whole heating of the water in water tank.

Description

The heating system of coffee machine

Technical field

The utility model relates to a kind of water heater funnel, particularly a kind of coffee machine heating system.

Background technology

Current known coffee machine mode of heating has two kinds, one is that heater is separated with water receiver, the water inlet end of heater is connected with water receiver water side by pipeline, the water side of heater is communicated with coffee basket by pipeline, cold water in water receiver expands after flowing through heater heating, drop in coffee basket by pipeline through water sprinkler under the effect of check valve, or the cold water in water receiver is transported to heater heating through water pump, then drop in coffee basket through water sprinkler, the coffee liquid after brewing finally flow in coffee cup.Chinese patent CN201320836207 discloses a kind of coffee machine of improvement, it is characterized in that comprising water tank, downcomer, pumping water device, electro-heat equipment, temperature detector, upper hose; Described downcomer is positioned at the below of water tank, and one end of downcomer is connected with water tank, and the other end is connected with one end of pumping water device, and the other end of described pumping water device is connected with one end of temperature detector by electro-heat equipment, and the other end of described temperature detector is connected with upper hose; Its defect is: not only assembly space wants large, and assembly technology is more complicated, and pipeline connecting link is many, water blockoff test easily failure, and with high costs.

The another kind of mode of heating of coffee machine is that water tank bottom is provided with heater, after water in water tank is all heated to set temperature, hot water flow in coffee basket after flowing through water sprinkler by the delivery port bottom water receiver, and the coffee liquid after brewing finally flow in coffee cup.Chinese patent 200910039598.4 discloses a kind of method of operating of coffee machine and implements the equipment of the method, comprise in main body and circuit board is set, warming plate and ptc heater, main body is placed with cup, there is Cup handle cup side, cup port has funnel, funnel openings end cap has filler cap, cup side has in one to be overlapped, middle cover is inserted in main body, kettle body is also provided with above cup described in it, pot lid and hand handle, heat-generating disc is had bottom kettle body, the bottom surface of heat-generating disc there is upper even tentaculum, on kettle bottom, lower even tentaculum is provided with the upper tentaculum phase configuration that connects, upper, there is an electronic valve at the lower tentaculum side place that connects, kettle bottom opens hole, through hole communicates with filler cap.Its greatest drawback is that the water in kettle must to design temperature, complete to brew and just can drink the coffee of having stewed afterwards by disposable whole pot by user, and described embodiment complex structure, and cost is higher.

Utility model content

It is excellent that the purpose of this utility model aims to provide a kind of heating properties, simple and reasonable, assembling is simple, dependable performance, volume are little, with low cost, security is good, the heating system of the not coffee machine of accumulated heat water in machine, to overcome weak point of the prior art.

The heating system of a kind of coffee machine designed by this object, comprises water receiver, check valve, heater and temperature-control protector, it is characterized in that: be separated into upper water storage cavity and lower water storage cavity by integrated interlayer in water receiver; Check valve is provided with in lower water storage cavity, heater is provided with bottom lower water storage cavity, instantly when the water of water storage cavity adds thermal expansion, under the effect of water expansive force, inlet opening on closed check valve interlayer, is provided with the outlet pipe of through upper water storage cavity and lower water storage cavity in water receiver, the hot water after expansion is after outlet pipe is discharged, cold water flows in lower water storage cavity from upper water storage cavity under gravity, is so a heat cycles.

The side correspondence of inlet opening water storage cavity is on the lower equipped with check valve holder, check valve move up and down in check valve holder; Check valve sealing ring is provided with between inlet opening and check valve, check valve arranges smooth flat or sphere and check valve sealing ring and fits, with hermetically enclosed inlet opening, its shape is cone, spheroid, square body or obform body, and moves in check valve holder all the time.

Interlayer and outlet pipe one-body molded, outlet pipe top extends upwardly near upper water storage cavity top, and bottom part is placed in lower water storage cavity, effectively guides hot water to discharge.

Interlayer is provided with steam vent, can closes outlet pipe very soon when the water in upper water storage cavity flows into lower water storage cavity, this air at present in water storage cavity is discharged by steam vent, unlikely formation vacuum, thus makes the water in water storage cavity flow rapidly into lower water storage cavity.

Interlayer is provided with relief hole, is equipped with the relief valve that flexible glue is made in relief hole, relief valve is flexible glue material, and centre is provided with the perforation that fluid pressure controls opening and closing.When heater power is unstable or steam vent and outlet pipe block simultaneously, cause lower water storage cavity pressure excessive, relief valve perforation automatically can be opened and hot water and/or steam is drained in upper water storage cavity, produces in case dangerous.

Water receiver is fixedly connected with heater, is provided with sealing ring between water storage cavity and heater down, can play effect that is heat insulation and sealing.Heater bottom surface is provided with temperature-control protector, after the water in upper water storage cavity and lower water storage cavity is all discharged, heater can under the protection of temperature-control protector auto-breaking.

The utility model is separated into upper and lower two water storage cavities by arranging interlayer water receiver, and upper water storage cavity is used for water storage, and lower water storage cavity is used for heating.Lower water storage cavity adds thermogenetic expansive force control check valve and closes inlet opening, after the hot water expanded is discharged from outlet pipe, cold water flows in lower water storage cavity from upper water storage cavity under gravity, it is so a circulation, it directly can heat at lower water storage cavity, steam pressure can be leaned on again to heat while coffee of stewing, do not need to flow out pot coffee again after the disposable whole heating of the water in water tank.In addition, relief valve and the abnormal conditions of temperature-control protector to coffee machine have good protective effect, guarantee use safety.

Accompanying drawing explanation

Fig. 1 is the utility model explosive view.

Fig. 2 is the utility model sectional structure schematic diagram.

Fig. 3 is the utility model using state schematic diagram.

Detailed description of the invention

Below in conjunction with drawings and Examples, the utility model is further described.

See Fig. 1-Fig. 3, the heating system of this coffee machine, comprises water receiver 1, check valve 4, heater 7 and temperature-control protector 8, is separated into upper water storage cavity 1.2 and lower water storage cavity 1.3 in water receiver 1 by integrated interlayer 1.1; Check valve 4 is provided with in lower water storage cavity 1.3, heater 7 is provided with bottom lower water storage cavity 1.3, instantly when the water of water storage cavity 1.3 adds thermal expansion, under the effect of water expansive force, the inlet opening 1.1.1 on interlayer closed by check valve 4, is provided with the outlet pipe 1.1.2 of through upper water storage cavity and lower water storage cavity in water receiver 1, and the hot water after expansion is discharged through outlet pipe 1.1.2, cold water flows in lower water storage cavity 1.3 from upper water storage cavity 1.2 under gravity, is so a heat cycles.The hot water of discharging is spilled in funnel 13 by water nozzle 12, and after extraction coffee, coffee liquid flows in coffee container 10, thus completes pot coffee process.

Specifically, the side correspondence of inlet opening 1.1.1 water storage cavity 1.3 is on the lower equipped with check valve holder 5, check valve 4 move up and down in check valve holder 5; Check valve sealing ring 3 is provided with between inlet opening 1.1.1 and check valve 4.Wherein, check valve 4 end face is smooth plane, and fits with check valve sealing ring, and with hermetically enclosed inlet opening, its shape is inverted cone, and mobile in check valve holder 5 all the time, and check valve 4 can be bubbled through the water column.

Interlayer 1.1 is one-body molded with outlet pipe 1.1.2, outlet pipe 1.1.2 top extends upwardly near upper water storage cavity 1.2 top, and is tightly connected with water nozzle, and bottom extends downward bottom lower water storage cavity, guarantee effectively to guide hot water to enter outlet pipe 1.1.2, and the hot water in cavity is drained.

Interlayer 1.1 is provided with steam vent 1.1.3 and relief hole 1.1.4, wherein, steam vent 1.1.3 upper seal is connected with a blast pipe 11, sufficiently high blast pipe 11 can prevent the cold water in water storage cavity 1.2 from blocking steam vent 1.1.3, outlet pipe 1.1.2 can be closed very soon when the water in upper water storage cavity 1.2 flows into lower water storage cavity 1.3, this air at present in water storage cavity 1.3 is discharged by steam vent 1.1.3, unlikely formation vacuum, thus the water in water storage cavity 1.2 is flowed rapidly in lower water storage cavity 1.3.Be equipped with the relief valve 2 that flexible glue is made in relief hole 1.1.4, relief valve 2 is flexible glue material, and centre is provided with the perforation that fluid pressure controls opening and closing.When heater 7 power is unstable or steam vent 1.1.3 and outlet pipe 1.1.2 blocks simultaneously, cause lower water storage cavity 1.3 pressure excessive, relief valve 2 perforation automatically can be opened and hot water and/or steam is drained in upper water storage cavity, produces in case dangerous.

Water receiver 1 is fixedly connected with heater 7, is provided with heat-insulating and sealing circle 6 between lower water storage cavity 1.3 and heater 7, can play effect that is heat insulation and sealing.Heater 7 bottom surface is provided with temperature-control protector 8, after the water in upper water storage cavity 1.2 and lower water storage cavity 1.3 is all discharged, and heater 7 meeting auto-breaking under the protection of temperature-control protector 8.

This structure overcomes the defect of existing coffee machine mode of heating, can directly arrange heater 7 bottom water receiver to heat, again can as conventional coffee machine mode of heating, heat by steam pressure while coffee of stewing, not need etc. coffee of stewing again after disposable for the water in water tank whole heating, not only greatly promote coffee machine performance, reduction product design size, simplify assembly technology, improve product reliability, effectively can also reduce product cost.In addition, not accumulated heat water in machine, not oxidizable fouling, also can improve coffee extracted temperature, shortens pot coffee break, greatly reduces vapor stream vector and early jumps the appearance of problem.

Above-mentioned is preferred version of the present utility model, and those of ordinary skill in the art, to its simple modification or transformation, all drop within protection domain of the present utility model.

Claims (10)

1. the heating system of a coffee machine, comprise water receiver (1), check valve (4), heater (7) and temperature-control protector (8), check valve (4) is arranged in lower water storage cavity (1.3), heater (7) is arranged at lower water storage cavity (1.3) bottom, and be tightly connected with water receiver (1), temperature-control protector (8) is arranged on heater (1); It is characterized in that: in water receiver (1), be separated into water storage cavity (1.2) and lower water storage cavity (1.3) by interlayer (1.1); Check valve (4) is provided with, with the inlet opening (1.1.1) on opening and closing interlayer (1.1) in lower water storage cavity (1.3); The outlet pipe (1.1.2) of through upper water storage cavity (1.2) and lower water storage cavity (1.3) is provided with in water receiver (1).

2. the heating system of coffee machine according to claim 1, it is characterized in that: the side correspondence of inlet opening (1.1.1) water storage cavity (1.3) is on the lower equipped with check valve holder (5), and what check valve (4) moved up and down is placed in check valve holder (5); Check valve sealing ring (3) is provided with between inlet opening (1.1.1) and check valve (4).

3. the heating system of coffee machine according to claim 2, is characterized in that: check valve (4) arranges smooth flat or sphere and check valve sealing ring (3) and fits, and shape is cone, spheroid, square body or obform body.

4. the heating system of coffee machine according to claim 3, it is characterized in that: interlayer (1.1) is one-body molded with outlet pipe (1.1.2), outlet pipe (1.1.2) top extends upwardly near upper water storage cavity (1.2) top, and bottom part is placed in lower water storage cavity (1.3).

5. the heating system of coffee machine according to claim 4, is characterized in that: interlayer (1.1) is provided with relief hole (1.1.4), is provided with relief valve (2) in relief hole (1.1.4).

6. the heating system of coffee machine according to claim 5, is characterized in that: relief valve (2) is flexible glue material, and centre is provided with the perforation that fluid pressure controls opening and closing.

7. the heating system of coffee machine according to claim 6, is characterized in that: interlayer (1.1) is provided with steam vent (1.1.3).

8. the heating system of the coffee machine according to any one of claim 1-7, is characterized in that: interlayer (1.1) is one-body molded with water receiver (1).

9. the heating system of coffee machine according to claim 8, is characterized in that: heater (7) is assemblied in lower water storage cavity (1.3) bottom, and mating surface is provided with heat-insulating and sealing circle (6).

10. the heating system of coffee machine according to claim 9, is characterized in that: heater (7) bottom surface is provided with temperature-control protector (8).