CN101290144A - A multifunctional microwave oven with steam heating - Google Patents

Abstract

A multifunctional microwave oven with steam heating includes a furnace body, a control panel and an electric heating steam generator arranged in the furnace body, and an external nozzle mechanism is connected to the steam outlet pipe of the steam generator. There are two joints on the steam generator, one of which is a steam outlet pipe, which is connected with a two-position three-way solenoid valve to control the flow direction, one way leads to the inner tank for heating food, and the other is connected to the external nozzle mechanism; the other joint It is a water outlet pipe, connected with a one-way electromagnetic valve, and connected with the front end of the air outlet pipe through a three-way pipe. The external nozzle mechanism includes a three-way valve, which is respectively connected to the end of the steam outlet pipe, the beverage pipe and the nozzle. The invention makes full use of the function of the steam generator, perfects the function of the microwave oven, and has simple and reasonable structure, convenient use and strong practicability.

Description

A multifunctional microwave oven with steam heating

technical field

The invention relates to a microwave oven, in particular to a multifunctional microwave oven with steam heating.

Background technique

There are many types of existing steam microwave ovens with different structures. They are all simply passed to the furnace gall to supplement the moisture of food after the steam generator produces steam, but do not make better use of the produced steam. In addition, when microwaves are used to heat fluids such as milk and soybean milk in a microwave oven, they are easy to boil and escape, and there are certain requirements for the material of the water cup, which causes inconvenience to users. At the same time, since microwave ovens with steam function have no drainage structure, the water remaining in the steam generator will not be drained after each use. After a long period of storage, the water will deteriorate in the next use, and it will be used to heat food again, which is not conducive to food hygiene. In addition, after long-term use of the steam generator, a lot of scale will remain inside, which will affect the heating efficiency of the steam generator. Chinese Patent No. ZL2005200573673 discloses a microwave oven with steam heating, which includes a microwave oven body and a steam generator on the side of the microwave oven. The steam generator includes a heating plate for generating steam and a water tank arranged on the side of the microwave oven. A water pump is arranged between them, and steam ejection holes are arranged on the inner wall of the cavity of the microwave oven. The water tank is inserted on the water tank support plate, which is rotatably hinged to the side wall of the microwave oven. A sliding pipe joint is arranged above the water tank support plate. The water inlet of the sliding pipe joint is connected with the water outlet of the water tank, and the water outlet of the sliding pipe joint It is connected to the water inlet of the water pump, the water outlet of the water pump is connected to the water inlet of the heating plate, the steam outlet of the heating plate is connected to the steam groove, the steam groove covers the steam ejection hole, and the steam ejection hole ring is arranged in the cavity of the microwave oven bottom of the wall. The structure has a large amount of steam generation, uniform distribution of steam, and good taste of food after cooking. But the produced steam is still not used for other purposes, it is necessary to further improve and perfect.

Contents of the invention

The object of the present invention is to provide a multifunctional microwave oven with simple and reasonable structure, convenient use and multipurpose steam heating, so as to overcome the deficiencies in the prior art.

A multifunctional microwave oven with steam heating designed according to this purpose, including a furnace body, a control panel and an electric heating steam generator installed in the furnace body, its structural feature is that the steam outlet pipe of the steam generator is connected with an external nozzle mechanism.

There are two joints on the steam generator, one joint is a steam outlet pipe, which is connected with a two-position three-way solenoid valve to control the flow direction. The joint is a water outlet pipe, connected with a one-way electromagnetic valve, and connected with the front end of the air outlet pipe through a three-way pipe.

The external nozzle mechanism includes a two-way valve, one end of which is connected to the end of the steam outlet pipeline, and the other end is connected to the nozzle; or a three-way valve, which is respectively connected to the end of the steam outlet pipeline, the beverage pipe and the nozzle. The external nozzle mechanism is arranged on the outside of the inner container, and the nozzle mechanism is arranged on the outer decorative cover, which can be pushed and pulled out, and is provided with a hinged flip cover to hide the nozzle mechanism.

The steam generator is a heater, which is connected with a water pump and a water box, and the water pump and the water box are arranged on the lower part of the control panel. The heater is assembled by the upper cover of the heating box, the heating box seat and the first sealing ring. The lower part is fixed with a heat pipe.

The steam generator is also connected with a drainage mechanism, which includes a drainage valve or a drainage solenoid valve connected to the bottom plate of the steam generator through a pipeline. The drainage solenoid valve is arranged on the heat shield, and the other end of the drainage solenoid valve is connected to the The water discharge connector at the bottom of the furnace body leads to the water receiver.

The invention makes full use of the function of the steam generator, perfects the function of the microwave oven, passes steam or boiled water outside to make milk, soybean milk, etc., and plays a stirring role. At the same time, there is no special requirement on the material of the water cup, which is convenient for users to use at will; The retracted nozzle is hidden to keep it beautiful, and it is safe and reliable; the exported steam can also be used to humidify the iron, clean the container, disinfect and sterilize, etc., which is very practical. At the same time, in order to solve the defects of the prior art, a drainage structure is added to improve the microwave oven, which can discharge the scale in the heater after cleaning, so as to prolong the service life of the heater.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Figure 2 is a schematic diagram of the structure viewed from the left.

Figure 3 is a schematic diagram of the steam pipeline structure.

Fig. 4 is an exploded schematic view of the external nozzle in the present invention.

Fig. 5 is a schematic diagram of the enlarged structure of the steam generator.

Fig. 6 is a schematic diagram of the exploded structure of the drainage mechanism in the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Referring to Fig. 1-Fig. 4, this multifunctional microwave oven with steam heating includes a furnace body, a control panel and an electric heating type steam generator 1 arranged in the furnace body. There are two joints on the steam generator, one of which is the outlet The steam pipeline is connected with a two-position three-way solenoid valve 2 for controlling the flow direction, one way leads to the inner tank 14 for heating food through the nozzle 13, and the other way is connected to the external nozzle mechanism; the other joint is the water outlet pipe, and the water outlet pipe passes through the connector 5 is connected with the steam generator, and is connected with a one-way solenoid valve 4, and is connected with the front end of the air outlet pipe through the three-way pipe 3. The external nozzle mechanism 6 includes a three-way valve 8, which is respectively connected to the end of the steam outlet pipe, the beverage pipe 7 and the nozzle 9 (also can be designed as a two-way valve). The steam generator is a heater, and is connected with a water pump 30 and a water box 16 in sequence, and the water pump and the water box are arranged at the rear bottom of the control panel. The outlet pipe joint is provided with a second sealing ring. Heater is assembled by heating box loam cake 17 and heating box seat 19 and first sealing ring 18, water inlet joint 23, water inlet joint sealing ring 24, and heating box seat bottom is fixed with heating tube 20. Two temperature controllers 21 and a thermistor 22 are also arranged on the lower part of the heating box seat; The steam generator is also connected with a drainage mechanism, which includes a drainage solenoid valve 26 connected to the bottom plate of the steam generator through a pipeline. The drain connector 28 is passed to the water receiver 29, see Fig. 6. The nozzle mechanism 6 is arranged on the outer decorative cover 11 outside the inner tank 14, which can be pushed in and pulled out, and a hinged flip cover 10 is provided to hide the nozzle mechanism 6. The top of the furnace body is also provided with exhaust holes 12 .

The working principle of the present invention is as follows: the pure water in the water box 16 on the right side is pumped into the heater on the left side through the connecting pipe by controlling the water pump 30 through the program. The steam pipe joint enters the oven cavity; the steam continuously replenishes the moisture emitted by the food, keeps the food fresh and prevents nutrient loss. When the steam generator is working, the thermistor 22 installed at its lower part detects the temperature of the heater, and judges whether the heater is working normally through the program of the control panel. The other two thermostats 21 are installed on the zero and live wires. It is to prevent the temperature of the heater from being too high after an abnormality occurs, which will cause harm to the surroundings. Outer decoration cover 11 is housed on the outside of heater and protects. When the steam generator is working, it is intermittently heated by microwaves and grill heating elements to raise the temperature in the oven cavity to above 120 degrees to prevent steam from condensing into water. In order to facilitate the air circulation in the cavity, an exhaust hole 12 is provided at the top to discharge a small amount of steam to the outside through the casing.

1. Steam injection function: the program on the control panel controls the on-off time of the water pump and the direction of the three-way solenoid valve 2; when the button 15 on the control panel is pressed once, the water pump circulates with the program of pumping for 2 seconds and stopping for 18 seconds to discharge the water. The water in the box 16 is pumped to the steam generator 1 (A arrow in Figure 3) to generate high-temperature steam, which is guided to the three-way solenoid valve 2 through the steam outlet pipe (B arrow in Figure 3), and the three-way solenoid valve is pressed when the button is pressed. Just energize and hit the direction of the nozzle mechanism 6, the steam leads to the nozzle 9 along the steam outlet pipe, and is sprayed into the placed water cup under high pressure. At the same time, a negative pressure is formed at the three-way solenoid valve 2, and the cold milk in the beverage pipe 7 is pumped to the three-way valve 8, and mixed with high-temperature steam, which not only achieves the effect of heating the milk, but also stirs the milk uniform.

2. The function of spraying water: when the button 15 on the control panel is pressed twice, the water pump will circulate with the program of pumping for 5 seconds and stopping for 15 seconds, pumping the water in the water box 16 to the steam generator 1 and heating it to a certain temperature, and the water level will continue It rises and flows out when it exceeds the steam outlet. It is guided through the water outlet pipe (arrow C in Figure 3) to the one-way solenoid valve 4. When the button is pressed, the one-way solenoid valve is energized and conducts. Through pipe leads to nozzle 9, sprays in the water cup that places under high pressure, can make tea or brew coffee.

Before using the nozzle, first open the flip cover 10, pull the nozzle mechanism 6 out to a certain position, and align it with a water cup placed at a certain height on the side of the microwave oven; after use, push the nozzle mechanism 6 back and cover the flip cover.

3. Drainage function: after use, the water remaining in the heater enters the drain solenoid valve 26 through the three-way pipe 27 to open and flow out, flows into the water receiver 29 at the bottom after passing through the water discharge joint 28, and pours it out. When using the cleaning menu, add a small amount of lemon juice to pump the heater to work for 2 minutes, dissolve the scale therein, then open and discharge through the drain solenoid valve 26, and then pump pure water to rinse the heater to prevent residual lemon juice. When working normally, the drainage solenoid valve 26 is closed and not drained.

Claims (9)

1. A multifunctional microwave oven with steam heating, comprising a body of heater, a control panel and an electric heating type steam generator (1) arranged in the body of heater, characterized in that the steam outlet pipe of the steam generator is connected with a water outlet pipe External nozzle mechanism (6). 2. The multifunctional microwave oven with steam heating according to claim 1, characterized in that there are two joints on the steam generator, one of which is a steam outlet pipe, connected with a two-position three-way electromagnetic valve for controlling the flow direction. Valve (2), one way leads to the inner tank (14) for heating food, and the other way is connected to the external nozzle mechanism; the other joint is the water outlet pipe, which is connected with a one-way solenoid valve (4), through the three-way pipe (3) Connect with the front end of the outlet pipe. 3. The multifunctional microwave oven with steam heating according to claim 2, wherein the external nozzle mechanism includes a two-way valve, one end of which is connected to the end of the steam outlet pipe, and the other end is connected to the nozzle. 4. The multifunctional microwave oven with steam heating according to claim 2, characterized in that the external nozzle mechanism includes a three-way valve (8), which is respectively connected to the end of the steam outlet pipe, the beverage pipe (7) and the nozzle (9) ). 5. The multifunctional microwave oven with steam heating according to claim 3 or 4, characterized in that the external nozzle mechanism is arranged outside the inner container, and the nozzle mechanism is arranged on the outer decorative cover (11), which can be pushed in and pulled out, And a hinged flip cover (10) is provided to hide the nozzle mechanism. 6. The multifunctional microwave oven with steam heating according to claim 2, characterized in that the steam generator is a heater connected with a water pump (30) and a water box (16), and the water pump and the water box are arranged on the control panel Back bottom, heater is assembled by heating box loam cake (17) and heating box seat (19) and first sealing ring (18), and heating box seat bottom is fixed with heating pipe (20). 7. The multifunctional microwave oven with steam heating according to claim 2, characterized in that a second sealing ring is arranged on the joint of the steam outlet pipe. 8. The multifunctional microwave oven with steam heating according to claim 1, characterized in that the steam generator is also connected with a drainage mechanism, which includes a drain valve or a drain solenoid valve connected to the bottom plate of the steam generator through a pipeline (26), the drain solenoid valve is arranged on the heat shield (25), and the other end of the drain solenoid valve is connected to the water drain connector (28) arranged at the bottom of the body of heater, leading to the water receiver (29). 9. The multifunctional microwave oven with steam heating according to claim 6, characterized in that a temperature controller (21) and a thermistor (22) are also provided at the bottom of the heating box seat; the heater is fixed on the heat shield superior.

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