CN101230995A - Steam type microwave oven - Google Patents

Steam type microwave oven Download PDF

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Publication number
CN101230995A
CN101230995A CNA2007100566048A CN200710056604A CN101230995A CN 101230995 A CN101230995 A CN 101230995A CN A2007100566048 A CNA2007100566048 A CN A2007100566048A CN 200710056604 A CN200710056604 A CN 200710056604A CN 101230995 A CN101230995 A CN 101230995A
Authority
CN
China
Prior art keywords
anode
microwave oven
magnetron
water
service pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2007100566048A
Other languages
Chinese (zh)
Inventor
宋瑞祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Tianjin Appliances Co Ltd
Original Assignee
LG Electronics Tianjin Appliances Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Tianjin Appliances Co Ltd filed Critical LG Electronics Tianjin Appliances Co Ltd
Priority to CNA2007100566048A priority Critical patent/CN101230995A/en
Publication of CN101230995A publication Critical patent/CN101230995A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a steam microwave oven, and a water passing pipe is arranged at the outer side of the anode of a magnetron, the water passing pipe is a metal pipe which has good thermal conduction, the metal pipe is intertwined at the outer side of the anode in a helical structure way, the water inlet of the water passing pipe is arranged at the external part of the microwave oven, and the air outlet of the water passing pipe is communicated with the internal part of the microwave oven. When the microwave oven works, the anode with high temperature heats the water in the water passing pipe and enables the water to be evaporated, and the produced steam enters into the oven cavity from the air outlet of the water passing pipe to increase the humidity of the food in the oven cavity. The steam microwave oven of the invention can increase the heat dissipating effect of the magnetron, and fully utilize the heat loss of the magnetron, thereby adding the steam humidifying function to the common microwave oven and saving energy resources.

Description

Steam type microwave oven
Technical field
The present invention relates to micro-wave oven, particularly relate to the heating water service pipe is set on anode of magnetron, provide the micro-wave oven that adds moist steam for heat food in the stove so that make full use of anode heat.
Background technology
Micro-wave oven is the electrical equipment cooker that utilizes high-frequency microwave that food is heated, by the frictional heat heat food of the generation of food molecule high vibration under the radiation effects of high-frequency microwave.When micro-wave oven is arranged operation, microwave penetration food, can inside and outside heating simultaneously, it is fast and use plurality of advantages easily to have an efficient height, speed.Therefore, micro-wave oven progressively becomes widely used domestic electric appliance.
The outward appearance of micro-wave oven is rectangular shape, and the housing front of cuboid is provided with fire door, and the fire door side is provided with control panel, and control panel is provided with micro-wave oven operated key and display screen.Form furnace chamber in the housing, the top and side of furnace chamber is provided with the internals of micro-wave oven, mainly contains magnetron, waveguide, control circuit device and agitator etc.
Magnetron is the heart of micro-wave oven, and being electronics gives the microwave tube of microwave electromagnetic field with potential energy form positive energy exchange, is the vacuum device that produces the high-power high-frequency oscillation energy.The continuous microwave that magnetron produces is carried and is radiated on the food in the furnace chamber by the waveguide of high-conductive metal material, is heated evenly by make the food in the furnace chamber under the radiation effects of high-frequency microwave.
The magnetron of micro-wave oven is made of tube core and magnet two parts.Tube core comprises negative electrode, anode and antenna, and negative electrode is positioned at the magnetron middle part, and anode is looped around the negative electrode periphery, and anode is ground connection always, makes negative electrode become negative high voltage.Magnet adopts permanent magnet usually, and the space between anode and negative electrode forms the high-intensity magnetic field of axial constant.
The helical heater that negative electrode generally adopts thoriatde-tungsten wire or pure tungsten filament winding to make can promptly be launched electronics after the turn-on current heating.Negative electrode heating back electrons emitted is subjected to the effect of High Level DC Voltage between anode and the negative electrode, the anode motion.Simultaneously, the thermoelectron of emission of cathode also will be subjected to the effect of axial magnetic field in the process of anode motion.Like this, thermoelectron is done the wheel cycloid motion under the effect of electric field force and magnetic field force, and vibrates and the generation microwave in the resonator on cathodic anode surface.It bundle of lines microwave is coupled out, and forms radiation higher-order of oscillation microwave, heats on food in the furnace chamber is carried and be radiated to waveguide.
The vibration microwave is after the energy exchange of antenna coupling, thermoelectron also has certain energy, and these thermoelectrons are beaten on anode, and temperature of anode is raise, electronics many more (being that electric current is big more) or the energy of electronics big more (power conversion is low more) that anode is collected, temperature of anode is just high more.
Self can produce very high heat (300 ℃~400 ℃) in the magnetron work,, magnetron is damaged if temperature is too high.
Therefore, in order to reduce the operating temperature of magnetron,,, adopt fan to carry out the air blast cooling heat radiation usually at anode arranged outside fin in order to avoid magnetron damages.
In addition, the micro-wave oven that has also is provided with heater separately, utilizes the humidity of the interior food of steam increase furnace chamber of heating water generates, the effect of promoting microwave oven heating food.
Yet the micro-wave oven of above-mentioned prior art exists both to be needed to disperse the heat that magnetron produces, and consumes energy is used to heat the water generates water vapour again, and this utilizes unreasonable problem with regard to there being thermal resource.
Summary of the invention
The unreasonable problem of above-mentioned Btu utilization that exists at the micro-wave oven of prior art, the present invention has released novel steam type microwave oven, its objective is the heating water service pipe is set on anode of magnetron, the heat that utilizes anode to produce heats water, it is interior to the food humidification that the water vapour that generates is used for furnace chamber, realizes making full use of of heat resource
Steam type microwave oven involved in the present invention, at the arranged outside water service pipe of anode of magnetron, water service pipe is the good metal tube of thermal conductivity, is wrapped in the anode outside with sped structure, the water inlet of water service pipe is arranged on the micro-wave oven outside, the venthole of water service pipe and micro-wave oven furnace chamber internal communication.
When micro-wave oven was worked, the water in the anode of the high temperature heating water service pipe also made its evaporation, and the water vapour that is produced enters furnace chamber from the venthole of water service pipe, increases the humidity of food in the furnace chamber.
Steam type microwave oven involved in the present invention by at the good metal water service pipe of anode arranged outside thermal conductivity, has been promoted the radiating effect of magnetron; Simultaneously, the water vapour that heating produces in the water service pipe enters again in the furnace chamber, and the loss heat that makes full use of magnetron increases the humidification function of micro-wave oven, has saved energy resource.
Description of drawings
Fig. 1 is the microwave oven figure of prior art.
Fig. 2 is the microwave oven magnetic structure front elevational schematic of prior art.
Fig. 3 is anode of magnetron and a cathode arrangement structure schematic top plan view among Fig. 2.
Fig. 4 is a microwave oven magnetic structural representation of the present invention.
Main mark explanation among the figure:
1, housing 2, magnetron
3, waveguide 4, agitator
5, reflecting plate 6, fire door
7, observation window 8, furnace chamber
9, operated key 10, antenna
11, magnet 12, anode
13, negative electrode 14, cathode filament lead-in wire
15, fin 16, resonator
17, water service pipe 18, water inlet
19, venthole
The specific embodiment
Accompanying drawings the specific embodiment of the present invention.
Fig. 4 is a microwave oven magnetic structural representation of the present invention.As shown in Figure 4, steam type microwave oven involved in the present invention, arranged outside water service pipe 17 at anode of magnetron 12, water service pipe 17 is the good metal tube of thermal conductivity, be wrapped in the outside of anode 12 with sped structure, the water inlet 18 of water service pipe is communicated with the micro-wave oven outside, the venthole 19 and the micro-wave oven furnace chamber internal communication of water service pipe.

Claims (3)

1. steam type microwave oven, the magnetron of micro-wave oven is made of tube core and magnet two parts, tube core comprises negative electrode, anode and antenna, negative electrode is positioned at the magnetron middle part, anode is looped around the negative electrode periphery, it is characterized in that the arranged outside water service pipe of anode of magnetron, water service pipe are the good metal tube of thermal conductivity.
2. steam type microwave oven according to claim 1 is characterized in that, water service pipe is wrapped in the anode outside with sped structure.
3. steam type microwave oven according to claim 1 is characterized in that, the water inlet of water service pipe is communicated with micro-wave oven outside, the venthole of water service pipe and micro-wave oven furnace chamber internal communication.
CNA2007100566048A 2007-01-25 2007-01-25 Steam type microwave oven Pending CN101230995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007100566048A CN101230995A (en) 2007-01-25 2007-01-25 Steam type microwave oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100566048A CN101230995A (en) 2007-01-25 2007-01-25 Steam type microwave oven

Publications (1)

Publication Number Publication Date
CN101230995A true CN101230995A (en) 2008-07-30

Family

ID=39897679

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007100566048A Pending CN101230995A (en) 2007-01-25 2007-01-25 Steam type microwave oven

Country Status (1)

Country Link
CN (1) CN101230995A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104728882A (en) * 2015-03-05 2015-06-24 广东美的厨房电器制造有限公司 Microwave oven and cooking control method using same
CN108506974A (en) * 2018-03-27 2018-09-07 佛山市飞程信息技术有限公司 A kind of microwave device with humidification function
CN108684096A (en) * 2018-03-27 2018-10-19 佛山市飞程信息技术有限公司 A kind of microwave and integrated apparatus of drinking water
CN110660632A (en) * 2019-10-11 2020-01-07 电子科技大学 Magnetron tube core for rectangular microwave oven

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104728882A (en) * 2015-03-05 2015-06-24 广东美的厨房电器制造有限公司 Microwave oven and cooking control method using same
CN108506974A (en) * 2018-03-27 2018-09-07 佛山市飞程信息技术有限公司 A kind of microwave device with humidification function
CN108684096A (en) * 2018-03-27 2018-10-19 佛山市飞程信息技术有限公司 A kind of microwave and integrated apparatus of drinking water
CN110660632A (en) * 2019-10-11 2020-01-07 电子科技大学 Magnetron tube core for rectangular microwave oven
CN110660632B (en) * 2019-10-11 2020-07-07 电子科技大学 Magnetron tube core for rectangular microwave oven

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C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20080730