CN2720944Y

CN2720944Y - Ceramic electrothermal cookers

Info

Publication number: CN2720944Y
Application number: CN 200420071222
Authority: CN
Inventors: 罗喜沃
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-07
Filing date: 2004-07-07
Publication date: 2005-08-31
Anticipated expiration: 2014-07-07

Abstract

The utility model discloses a ceramic electrothermal cooker, comprising a heating aluminium dish fixed on the support bracket of the bottom surface of the heat insulation lining cooker in a shell, a ceramic internal bladder arranged in the heating aluminium dish, an electrothermal element arranged on the heating aluminium dish, and a temperature limiter arranged on the lower part of the ceramic internal bladder. The upper end of the temperature limiter passes through the central hole of the heating aluminium dish and just faces to the central position of the ceramic internal bladder, and the lower part of the temperature limiter is connected with a temperature controlling switch lever in a transmission way. The internal bottom surface of the heating aluminium dish is provided with a heat insulation ring protruding upward, and the radial external ring surface of the heat insulation ring is provided with a plurality of radial reinforcing ribs protruding upward along a radial direction. The ceramic electrothermal cooker also comprises a reflecting plate provided between the heating aluminium dish and the support bracket. The support foot of the bottom of the ceramic internal bladder is a ring formed body, and the height of the support foot of the bottom of the ceramic internal bladder is lower than the heights of the reinforcing ribs of the bottom of the ceramic internal bladder. The utility model can reflect the downward radiation heat of the heating aluminum plate back and evacuates residual heat flow by making use of air convection, which effectively reduces the temperature of the bottom part of the cooker, reduces heat loss, slows down the aging of the plastic components and other elements on the bottom part of the cooker and prolongs the service life of the ceramic electrothermal cooker.

Description

The ceramic electric heating pot

Technical field

The utility model belongs to a kind of ceramic electric heating pot of making inner bag with pottery pot body.

Background technology

Fixing heating aluminium dish 5 on the support 10 that existing ceramic electric heating pot primary structure is heat shield liner pot 4 bottom surfaces in housing 3, in the heating aluminium dish 5 ceramic liner 2 is housed, on the heating aluminium dish 5 heating 6a, 6b are housed, temperature limiter 7 is equipped with in ceramic liner 2 bottoms, the centre bore of heating aluminium dish is passed over against the ceramic liner centre in temperature limiter 7 tops, temperature limiter bottom and temperature control switch lever are in transmission connection, and leg 16 and reinforcement are arranged at ceramic liner 2 bottoms; Heating aluminium dish 5 inner bottom surfaces be provided with raise up around centre bore, with the heating aluminium sheet be 13 of press forming integral structure, be provided with several radial reinforcements 14 that radially raise up as shown in Figure 5 with heat insulation loop outer ring surface radially on the heating aluminium dish inner bottom surface.Above-mentioned ceramic electric heating pot a large amount of heat radiation that produces of heating aluminium sheet, the heat of a part of downward radiation of its generation raises the temperature of pot bottom, the aging easily corrupted of the working of plastics on the bottom of a pan and other element influences service life of ceramic electric heating pot.

Summary of the invention

The utility model purpose provides a kind of ceramic electric heating pot that can go back the downward thermal-radiating heat reflection of part that heat-generating disc produces.

The utility model purpose is to realize like this, it is included in the heating aluminium dish of fixing on the support of the heat shield liner the bottom of a pan face in housing, the ceramic liner of dress in the heating aluminium dish, the heating of adorning on the heating aluminium dish, the temperature limiter of ceramic liner bottom dress, the centre bore of heating aluminium dish is passed over against the ceramic liner centre in the temperature limiter upper end, and temperature limiter bottom and temperature control switch lever are in transmission connection; Heating aluminium dish inner bottom surface is provided with the heat insulation loop that raises up and is provided with the radial reinforcement that several radially raise up with heat insulation loop outer ring surface radially; Also comprise the reflecting plate of adorning between heating aluminium dish and the support, described leg is an annular solid, and support foot hight is lower than the height of the reinforcement of ceramic liner bottom.

The utility model is provided with reflecting plate owing to utilize architectural thermal insulation layer principle in the bottom surface of heating aluminium dish, on the most of reflected back ceramic liner of the downward heat radiation of heating aluminium sheet; Owing to guaranteed the unimpeded of heat passage in the pot, utilize the cross-ventilation remaining hot-fluid is evacuated, effectively reduce the temperature of pot bottom, reduce heat leakage, that can also slow down working of plastics on the pot bottom and other element wears out the service life of prolongation ceramic electric heating pot.

Description of drawings

Fig. 1 is the utility model example structure schematic diagram

Fig. 2 is installed in the structural representation that generates heat between aluminium dish and the support for the reflecting disc of the utility model embodiment

Fig. 3 is the structural representation of the ceramic liner of the utility model embodiment

Fig. 4 is the partial enlarged drawing of Fig. 3

Fig. 5 is the structural representation of existing ceramic electric heating pot

Among the figure: radial reinforcement 14 reinforcements-15 of 1-pot cover 2-ceramic liner 3-housing 4-heat shield liner pot 5-heating aluminium dish 6-heating 6a-bandlet formula heating tape 6b-annular heating sheet 7-temperature limiter 8-temperature limiter heat shield 9-temperature limiter bracing frame 10-support 11-temperature control switch lever 12-housing base heat insulation loop-13 16-leg 17-reflecting plate

Specific embodiments

With reference to Fig. 1, Fig. 2, in the housing 3 of present embodiment heat shield liner pot 4 is housed, housing base 12 is equipped with in housing 3 bottoms, and fixedly connected with housing edge suitable for reading in heat shield liner pot edge suitable for reading, and heating aluminium dish 5 is contained on the support 10 that is fixed in heat shield liner pot 4 bottom surfaces.Heating 6 is provided with coated bandlet formula heating tape 6a on heating aluminium dish 5 lateral walls and contacts the annular heating sheet 6b of riveted on heating aluminium dish outer bottom with face.Temperature limiter 7 is contained in the limit temperature of sampling over against the position of ceramic liner bottom center, the centre bore of heating aluminium dish is passed in temperature limiter 7 upper ends, be positioned at the heat insulation loop of heating aluminium dish, and be connected with ceramic liner bottom surface contact, its underpart is with heat shield 8, and be fixed on the temperature limiter bracing frame 9 with heat shield 8, temperature limiter bracing frame 9 is fixed on heat shield liner pot 4 bottom surfaces by screw, and temperature limiter 7 bottoms are in transmission connection with the temperature control switch lever 11 that is passed down through heat shield liner the bottom of a pan face.Heating aluminium dish 5 bottom surfaces be provided with raise up around centre bore, with the heating aluminium sheet be the heat insulation loop 13 of press forming integral structure, be provided with the radial reinforcement that several radially raise up radially drawing back on the outer ring surface of certain distance with heat insulation loop on the heating aluminium dish inner bottom surface.With reference to Fig. 3, reflecting plate 17 is installed between heating aluminium dish 5 and support 10, the diameter of reflecting plate 17 is greater than the diameter of heating aluminium dish, recessed position on the installed surface of the support of reflecting plate 17 back side correspondences is, just support 10 is the recessed positions that place reflecting plate 17, reflecting plate 17 positive corresponding recessed positions are boss, make to form the cross-ventilation gap between reflecting plate 17 and the heating aluminium dish 5.The cross-ventilation gap of its formation is connected by leaving annular space between the heat passage between heating aluminium dish 5 outer walls and the heat shield liner pot 4 and the heat passage between ceramic liner and the heat shield liner pot 4 and ceramic liner edge suitable for reading and heat shield liner pot and the housing edge suitable for reading.Better for the thermal radiation effect that makes reflection, the front face surface of reflecting plate 17 will compare light, and the reflex action that the periphery of reflecting plate 17 can also be made progress forms a surrounding edge, makes reflecting plate 17 similar plate-likes.The ceramic liner bottom is provided with and all corresponding annular reinforcements 15 to lower convexity of aluminium dish heat insulation loop 13 positions and diameter that generate heat, the lower surface of reinforcement 15 is a planar annular, heat insulation loop 13 upper surfaces of heating aluminium dish are planar annular, ceramic liner places on the annular upper end face of heating aluminium dish heat insulation loop contiguously by the annular end face face of bottom reinforcement 15, leaves annular space between ceramic liner edge suitable for reading and heat shield liner pot and the housing edge suitable for reading.With reference to Fig. 3, Fig. 4, ceramic liner 2 bottom margins are established leg 16, lay three or several if leg 16 is even equal portions, and the reinforcement of leg 16 and ceramic liner 2 bottoms can be contour; If leg 16 is an annular solid, the height of leg 16 is lower than the height of the reinforcement 15 of ceramic liner bottom.The production technology that so not only can adapt to ceramic liner has also ensured the unimpeded of the interior heat passage of pot.Radiation reinforcement height and heat insulation loop height on heating aluminium dish 5 inner bottom surfaces are roughly the same, like this when ceramic liner places on the heat insulation aluminium dish, can keep a fixed gap between ceramic liner bottom surface and the radiation reinforcement upper surface, help the thermally equivalent of ceramic liner.During heat food, ceramic liner is placed in the heating aluminium dish, be contained in the bandlet formula heating tape and the annular heating sheet energising heating that is contained on the heating aluminium dish outer bottom of heating aluminium dish lateral wall, bandlet formula heating tape heats inner bag together on the sidewall, the waste heat that is not fully absorbed sheds between the space between inner bag and the heat shield liner pot edge suitable for reading, form thermal convection current, the heat that bottom annular heating sheet sends is absorbed by the ceramic liner bottom on the one hand, on the one hand unabsorbed heat along inner bag and the gap between the aluminium dish of generating heat to top, make whole ceramic liner thermally equivalent, avoid because of the irregular explosion that causes of being heated, heating is contained in heating aluminium dish outside and is more conducive to make ceramic liner to be heated evenly than being contained in heating aluminium dish inside.Simultaneously unabsorbed heat is by the downward heat radiation of the heating aluminium dish plate reflected back top that is reflected again; remaining type of thermal communication is crossed between reflecting plate and the heating aluminium dish and is formed the evacuation of cross-ventilation gap; reduce the temperature on the heat shield liner the bottom of a pan to greatest extent, working of plastics and other element on the face of the protection heat shield liner the bottom of a pan.

Claims

1, a kind of ceramic electric heating pot, it is included in the heating aluminium dish of fixing on the support of the heat shield liner the bottom of a pan face in housing, the ceramic liner of dress in the heating aluminium dish, the heating of adorning on the heating aluminium dish, the temperature limiter of ceramic liner bottom dress, the centre bore of heating aluminium dish is passed over against the ceramic liner centre in the temperature limiter upper end, and temperature limiter bottom and temperature control switch lever are in transmission connection, and leg and reinforcement are arranged at porcelain inner bag bottom; Heating aluminium dish inner bottom surface is provided with the heat insulation loop that raises up and is provided with the radial reinforcement that several radially raise up with heat insulation loop outer ring surface radially; It is characterized in that: also comprise the reflecting plate (17) of dress between heating aluminium dish (5) and the support (10), described ceramic liner bottom supports (16) is an annular solid, and leg (16) highly is lower than the height of the reinforcement (15) of ceramic liner bottom.

2, ceramic electric heating pot according to claim 1 is characterized in that: the diameter of described reflecting plate (17) is greater than the diameter of heating aluminium dish (5).

3, ceramic electric heating pot according to claim 1 and 2 is characterized in that: the installed surface of the support of described reflecting plate (17) back side correspondence is last recessed position.

4, ceramic electric heating pot according to claim 3 is characterized in that: form the cross-ventilation gap between described reflecting plate (17) and the heating aluminium dish (5).

5, ceramic electric heating pot according to claim 3 is characterized in that: the reflex action that makes progress of the periphery of described reflecting plate (17) forms a surrounding edge.