The high-temperature steam heater of electric cooking appliance
The utility model relates to a kind of high-temperature steam heater of electric cooking appliance, mainly is applicable to food cooking stoves such as micro-wave oven, electric steam furnace, electric dry oven.
Steam heater on the market is divided into two kinds at present: a kind of is that steam enters furnace chamber by vaporizer (steam generator) through pipeline, utilizes the electrothermal tube in the furnace chamber to be heated.This device is bigger because of the furnace chamber space, heats inhomogeneously, and electrothermal tube is not easy to clean.Another kind is that steam enters furnace chamber, will be evaporated by fan air guide hole in the middle of wind scooper to suck heating more again.These two kinds of devices exist all that firing rate is slow, heating is inhomogeneous and deficiency such as air intake is not easy to clean.China Patent No. ZL028249739 discloses a kind of steam unit that is used for baking oven, comprising: the water supply unit of a supply drinking water; Boiler vessel is used for heating the drinking water from the water supply unit, meanwhile, carry out the heating second time to extending through the vapours that flows in the main steam supply pipe at least one through hole on the heat exchanger that is installed in the boiler vessel, therefore produce and supply the steam of higher temperature; Cooking box receives the more high-temperature steam that the main steam supply pipe that comes from boiler vessel transmits, with this cook food; A burner that is used for the heat exchanger in the heating boiler container, the control panel of a control burner.According to this configuration, can supplying high temperature steam, come cook food, the food that for example steams and promptly cook a large amount of food.Its structure is complicated, volume is bigger.
The utility model content
The purpose of this utility model aim to provide a kind of simple and reasonable, need not with pipeline connect vaporizer and furnace chamber, can be in less space with the steam Fast Heating, and the high-temperature steam heater of hydronic electric cooking appliance is to overcome weak point of the prior art.
High-temperature steam heater by a kind of electric cooking appliance of this purpose design comprises body of heater, furnace chamber, water holding box and steam generator, and its architectural feature is that the side at body of heater is provided with steam heating cavity, and steam heating cavity directly is communicated with furnace chamber.
Described steam heating cavity is arranged on the rear side of furnace chamber, and the little space that is surrounded by back inner panel and wind scooper constitutes heating chamber; Be provided with electrothermal tube and fan in the heating chamber, back inner panel outer wall is fixed with motor with cup rotor and steam generator, the venthole of steam generator through after the straight-through steam heating cavity of inner panel.The uniform air outlet of wind scooper upper and lower side, the centre is provided with return air inlet.
The utility model is provided with steam heating cavity at the furnace chamber rear side, and steam is heated by heat-generating pipe in heating chamber, and high-temperature steam directly communicates with furnace chamber by wind scooper, need not any pipeline and connects.Steam after the process heating is by the up and down air outlet guiding furnace chamber of fan through wind scooper, the steam that imports furnace chamber sucks heating chamber by fan return air inlet in the middle of wind scooper, the heating back is by the up and down air outlet guiding furnace chamber of fan through wind scooper once more, steam is through repeatedly circulation heating, thus the formation high-temperature steam.Its heating chamber space is less, and firing rate is fast, directly communicates with furnace chamber, has avoided trunking loss, thermal efficiency height.
Description of drawings
Fig. 1 is the utility model one example structure schematic diagram.
Fig. 2 is the side-looking structural representation of Fig. 1.
Fig. 3 is the A place structure for amplifying schematic diagram among Fig. 2.
Fig. 4 is the side sectional structure schematic diagram of Fig. 1.
Fig. 5 is the front section view structural representation (removing wind scooper) of Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1-Fig. 3, the high-temperature steam heater of this electric cooking appliance comprises body of heater 15 and furnace chamber 2, is respectively arranged with water holding box 13 and control panel 14 in body of heater 15 left and right sides, and the front side is provided with down turns over fire door 3 and handle.Being provided with steam heating cavity 1 at the rear side of body of heater directly is communicated with furnace chamber.Steam heating cavity 1 constitutes heating chamber by the little space that back inner panel 10 and wind scooper 9 surround; Be provided with two U-shaped electrothermal tubes 7 and fan 8 in the heating chamber, back inner panel 10 outer walls are fixed with motor with cup rotor 4 and steam generator 5, the venthole 6 of steam generator through after the straight-through logical steam heating cavity 1 of inner panel 10.The uniform air outlet 11 of wind scooper 9 upper and lower sides, the centre is provided with return air inlet 12.The air outlet of wind scooper is vertical strip, and return air inlet is a concentric circles or radial.