CN2146931Y

CN2146931Y - Automatic milk heater

Info

Publication number: CN2146931Y
Application number: CN 92245607
Authority: CN
Inventors: 路建军; 赵文娟
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-25
Filing date: 1992-12-25
Publication date: 1993-11-24
Anticipated expiration: 2002-12-25

Abstract

The utility model relates to an automatic milk heater, which is composed of an outer shell, an upper cover, an inner container, an electric heating source and an electric control part. The automatic milk heater is characterized in that the upper cover is provided with a liquid outlet, a vent hole communicated with the liquid outlet and a guide tube which connects with the upper cover via threads and communicates with the liquid outlet and the vent hole, and the electric heating source is provided with an electric heating tray between the inner container and the bottom of an inner shell. The middle part of the electric heating tray is provided with a temperature sensor, and a gap between the inner container and the inner shell is filled with methyl silicone oil. The electric heating tray and the temperature sensor are submerged in the methyl silicone oil. A lever, a steel ball and a microswitch are used for realizing the function of automatic operation.

Description

Automatic milk heater

The utility model belongs to the electric heating appliance field, particularly a kind of automatic milk boiling apparatus.

Traditional Electric heating adopts heating wire radiation heating and electric hot tray Contact Heating etc. usually, and electric heater heating element of producing with these Electric heating and the insulating material that contact with the heating original paper are easy to damage, live to people and have brought inconvenience.

The purpose of this utility model provides a kind of thermal efficiency height, and the heating original paper is not fragile, is heat-conducting medium with the methyl-silicone oil, and the heating original paper is immersed in the automatic milk boiling apparatus in the heat-conducting medium fully.

The utility model is by shell, loam cake, inner bag, electrical-heating source and electrical control division are grouped into, be characterized in covering be provided with a liquid outlet and the vent hole that communicates with liquid outlet and with the loam cake thread connection and with the conduit of liquid outlet and vent hole mutual conduction; Electrical-heating source is to be provided with the heating wire skeleton between the bottom of inner bag and inner casing, be shaped as discoid, coiling has heating wire above, a temperature sensor is placed at the position therebetween, a certain amount of methyl-silicone oil is injected at position, space at inner bag and inner casing, and heating wire and temperature sensor are immersed in the methyl-silicone oil; Electric control system is to be provided with a lever, microswitch and pressure spring and micrometer adjusting screw between the bottom of inner casing and shell, between the bottom of temperature sensor and micrometer screw one steel ball is housed.Temperature sensor is made up of temperature-sensitive pipe and sealing gasket, is marked with methyl-silicone oil in the temperature-sensitive pipe, and sealing gasket covers on the temperature-sensitive pipe mouth of pipe, and the temperature-sensitive pipe is fixed in the threaded hole at inner shell bottom center.

Fig. 1 is a structural representation of the present utility model in the accompanying drawing;

Fig. 2 is the circuit diagram of the utility model electric control system.

Describe in detail below in conjunction with accompanying drawing:

01 is loam cake in Fig. 1, the 02nd, conduit, the 03rd, O-ring seal, the vent hole 30 of the φ 1.5mm that on loam cake 01, is provided with the liquid outlet 29 of φ 6mm and communicates with liquid outlet, conduit 12 and the loam cake thread connection of φ 6mm, conduit 12 is detachable, and conduit 12, vent hole 30 and liquid outlet 29 are mutual conduction, is placed with O-ring seal 3 in the last ring groove that covers 31, so that sealing in the inner bag 5 reduces thermal loss.The 07th, shell adopts resistant to elevated temperatures polydiphenyl ether plastics to make, and the 05th, inner bag is made by shaping of polished aluminum plate stretching or employing corrosion resistant plate.

Electrical-heating source is provided in a side of in the space between the bottom of inner bag 05 and inner casing 06, adopt common Aludirome heating wire 09, it is coiled on the skeleton 12, put into the boiling point height, nontoxic, tasteless, submergence in the transparent methyl-silicone oil 27, and at temperature sensor 08 of forming by temperature-sensitive pipe and sealing gasket 10 of the centre position of heating wire skeleton 12 placement, its temperature-sensitive pipe also is to be immersed in the silicone oil, the bottom of inner bag 05 and heating wire 09 3-4mm of being separated by, inner casing 06 and inner bag 05 have the gap of 2.5～3mm, the liquid level of methyl-silicone oil is by the gap of 06 of inner bag 05 and inner casing, with the about 40mm height of inner bag submergence, temperature sensor 08 top and inner bag 05 bottom interval 0.5～1.0mm, the temperature-sensitive pipe adopts copper material to make, and mouth of pipe car has screw thread, injects a certain amount of methyl-silicone oil in the pipe as thermosensitive liquid, use the sealing gasket of making by heat resistant rubber 10 to cover on the temperature-sensitive pipe mouth of pipe, then with fixing seal in the threaded hole at its screw-in inner shell bottom center.

Electric control system is provided in a side of in the space between shell 07 and inner casing 06 bottom, by light emitting diode 26, lever 17, micrometer adjusting screw 18, microswitch 25, pressure spring 24, steel ball 11 is formed, and between temperature sensor 08 bottom and micrometer adjusting screw 18 steel ball is housed, be delivered to the displacement that is produced in the temperature sensor on the microswitch exactly by lever 17, make the microswitch action, thereby reach the temperature control purpose, realize control automatically.

Principle of work: in inner bag 05, put into the milk that need boil, cover loam cake and screw, power supply is inserted power hole 23, open hand switch, the electrothermal wire heating also carries out large-area heat conduction formula by the milk in the internal courage of heat conduction silicone oil and heats, in heating process, seal a small amount of steam that air in inner bag and milk are produced up for safekeeping in boiling process, be discharged from from liquid outlet by the vent hole in the loam cake, there is not pressure in the inner bag, after the boiling of the milk in the inner bag, volumetric expansion that it took place and the steam that is produced have little time to be discharged from from vent hole, and make inner bag form certain thermal pressure, when hot pressing reaches a certain amount of in the short time, milk is promptly got outside the inner bag through liquid outlet by conduit, automatically injection is placed on feeding bottle or the cup under the liquid outlet in advance, when milk forms liquid flow by the liquid outlet inner passage, flow of liquid seals vent hole automatically, thereby the hot pressing in the inner bag is increased, milk in the inner bag is got fully, can not leave raffinate, when milk by in the process of getting, inner bag is in semi-load or light condition, and it is less to absorb heat, conduction oil self temperature rise is accelerated, when its temperature reached 135 ℃ of left and right sides, the thermal expansion amount of the thermosensitive liquid in the temperature sensor increased, and promoted lever by the displacement that sealing gasket produced through steel ball and made the microswitch action, cut off the electricity supply power cut-off automatically in time.When the conduction oil temperature was lower than 100 ℃, temperature control system was automatic energized, can resume work.

The utility model is mainly used in family and boils milk, also can be used for simultaneously boiling water, and makes tea automatically, makes coffee, towards milk powder etc., because power is little, volume is little, and is safe in utilization, reliable, go on business, the travel staff carries, and uses at any time, can bring great convenience.

Claims

1, a kind of automatic milk boiling apparatus, it is by shell 07, loam cake 01, inner bag 05, electrical-heating source and electrical control division are grouped into, and it is characterized in that:

The vent hole 30 that a, loam cake 01 are provided with a liquid outlet 29 and communicate with liquid outlet, and with the loam cake thread connection and with the conduit 2 of liquid outlet 29 and vent hole 30 mutual conduction;

B, electrical-heating source are to be provided with heating wire skeleton 12 between the bottom of inner bag 05 and inner casing 06, be shaped as discoid, coiling has heating wire 09 above, and a temperature sensor 08 is placed at the position therebetween, injects a certain amount of methyl-silicone oil 27 at the inner bag 05 and the position, space of inner casing 06;

C, electric control system are to be provided with a lever 17, microswitch 25 and pressure spring 24 and micrometer adjusting screw 18 between the bottom of inner casing 06 and shell 07, at the bottom and 18 of the micrometer adjusting screws of temperature sensor 08 steel ball 11 are housed.

2, milk boiling apparatus according to claim 1, it is characterized in that described temperature sensor 08 is made up of temperature-sensitive pipe and sealing gasket 10, be marked with methyl-silicone oil 27 in the temperature-sensitive pipe, sealing gasket 10 covers on the temperature-sensitive pipe mouth of pipe, and the temperature-sensitive pipe is fixed in the threaded hole of inner casing 06 bottom centre.