CN219742503U - Electric oven with good heat preservation effect - Google Patents

Abstract

The utility model belongs to the technical field of kitchen ware, and particularly relates to an electric oven with good heat preservation effect, which comprises: inside cavity and one side are equipped with open-ended box, fixed mounting in the inside inner bag of box, rotate install in box one side just can seal cover open-ended door body, the door body includes: the sealing element can be abutted against the end face of one side, close to the opening, of the box body; the heat insulation cavity is formed between the two adjacent transparent plates and the inner wall of the frame body, and the heat conduction between the transparent plates close to the box body and the transparent plates far away from the box body is effectively reduced due to the combined action of the heat insulation cavities, so that the heat loss in the oven is reduced.

Description

Electric oven with good heat preservation effect

Technical Field

The utility model belongs to the technical field of kitchen ware, and particularly relates to an electric oven with a good heat preservation effect.

Background

The electric oven is a kitchen appliance for baking food by utilizing radiant heat emitted by the electric heating element, can be used for processing some wheaten food, such as bread and pizza, and can also be used for making desserts such as egg tarts and biscuits, and the temperature of the electric oven can be regulated within the range of 50-250 ℃ according to different requirements of baked food; the electric oven generally heats the food by the resistance wire under the action of current and heats the food by the heat conduction principle, belongs to the traditional food cooking mode, and can lead the food to be heated uniformly, thereby better keeping the moisture and the original nutrition components of the food.

The oven door on the current market always has a transparent window so as to realize observing the condition of baking food, but the current oven door has the condition of poor heat insulation effect, so that the quick loss and conduction of the heat of the oven are easily caused in the actual use process, the baking efficiency and the taste of the food are affected, and therefore, the electric oven with good heat preservation effect is provided, the heat preservation effect of the electric oven is improved, the heat dissipation is reduced, and the baking efficiency of the electric oven and the taste of the food are improved.

Disclosure of Invention

The utility model aims to provide an electric oven with good heat preservation effect, which can improve the heat preservation effect of the electric oven, reduce heat loss and improve the baking efficiency of the electric oven and the taste of food.

The utility model is realized in such a way that an electric oven with good heat preservation effect comprises: inside cavity and one side are equipped with open-ended box, fixed mounting in the inside inner bag of box, rotate install in box one side just can seal cover open-ended door body, the door body includes: the sealing element can be abutted against the end face of one side, close to the opening, of the box body; and a heat insulation cavity is formed between two adjacent transparent plates and the inner wall of the frame body, and the electric oven further comprises a heat insulation component coated on the outer side of the inner container.

According to the electric oven with good heat preservation effect, due to the plurality of transparent plates which are arranged in parallel at intervals, and the frame body which is wound on the periphery of each transparent plate, heat insulation cavities are formed between two adjacent transparent pieces and the inner wall of the frame body, and the heat conduction between the transparent plates close to the oven body and the transparent plates far away from the oven body is effectively reduced due to the combined action of the plurality of heat insulation cavities, so that the loss of heat in the oven is reduced; the sealing piece is used for conveniently sealing the joint of the door body and the box body, so that the gap between the door body and the box body is conveniently sealed, and the hot air flow in the box body is prevented from leaking out from the periphery of the door gap; and through the heat preservation subassembly cladding in the inner bag outside, further carry out thermal-insulated processing to the inner bag, reduce the heat loss, consequently for the oven of design higher furnace temperature provides structural basis, be convenient for roast food fast under higher temperature, pin the inside moisture of food, promote the efficiency of toasting of electric oven and the taste of food.

Preferably, the frame body includes: the sealing piece is attached to the inner wall of the inner door frame.

Preferably, the outer door frame includes: the outer corner, the outer corner and the outer right angle are connected in sequence, and a containing groove for containing the transparent plate is formed between the outer corner and the outer wall of the outer right angle.

Preferably, the inner heat insulation rubber frame comprises: the inner side part, the heat insulation part, the bending part and the inner right-angle part opposite to the outer right-angle part are connected in sequence, the inner side part is fixedly attached to the inner wall of the outer side part, the inner door frame is detachably mounted on the inner right-angle part, the inner right-angle part is penetrated and provided with notches for mounting the inner door frame along the thickness direction, and the number of the notches is multiple.

Preferably, the inner door frame includes: the shell is attached to the outer wall of the bending part, the welt part is connected to the shell and is in sealing attachment with the outer wall of the inner right-angle part, and the plurality of protrusions are fixedly connected to one side of the shell, close to the inner right-angle part, and can penetrate through the notch.

Preferably, the seal comprises: the sealing shell is attached to the outer wall of the shell and the outer wall of the welt part and is internally provided with a notch, and the turning part is fixedly connected to one side, close to the box body, of the sealing shell; the transparent plate is arranged in three, and is respectively fixed inside the accommodating groove of the outer door frame, between the outer right-angle part and the inner right-angle part and inside the notch of the sealing piece.

Preferably, the insulation assembly comprises: the heat insulation layer is coated on the outer surface of the inner container, and the heat insulation cover is sleeved on the outer surface of the heat insulation layer, the inner container is U-shaped, and the corner of the top of the inner container is provided with a plane chamfer.

Preferably, the bottom plate of the box body is an inner bottom plate and an outer bottom plate which are arranged at intervals in a stacking way, the back plate of the box body is a rear inner plate and a rear outer shell which are fixedly connected, and heat insulation cotton is filled between the rear inner plate and the rear outer shell; and one side of the box body, which is close to the opening, is provided with an outer ring temperature-resistant piece which is opposite to the inner heat-insulating rubber frame.

Preferably, the electric oven further comprises: the inner wall of the top of the inner container is fixedly provided with an upper heating tube, the inner wall of the bottom of the inner container is fixedly provided with a lower heating tube, and the inner container is fixedly provided with a support bracket body positioned above the lower heating tube.

Preferably, the support bracket body includes: the heating device comprises a guide rail groove fixedly arranged on the inner wall of the inner container and close to the lower heating tube, a baking net inserted in the guide rail groove, and pizza stone arranged on the baking net.

Compared with the prior art, the utility model has the beneficial effects that: the plurality of transparent plates are arranged at intervals in parallel, and the heat insulation cavities are formed between two adjacent transparent pieces and the inner wall of the frame body through the frame body wound around the periphery of each transparent plate, so that the heat conduction between the transparent plate close to the box body and the transparent plate far away from the box body is effectively reduced through the combined action of the plurality of heat insulation cavities, and the loss of heat in the oven is reduced; the sealing piece is used for conveniently sealing the joint of the door body and the box body, so that the gap between the door body and the box body is conveniently sealed, and the hot air flow in the box body is prevented from leaking out from the periphery of the door gap; and through the heat preservation subassembly cladding in the inner bag outside, further carry out thermal-insulated processing to the inner bag, reduce the heat loss, consequently for the oven of design higher furnace temperature provides structural basis, be convenient for roast food fast under higher temperature, pin the inside moisture of food, promote the efficiency of toasting of electric oven and the taste of food.

Drawings

FIG. 1 is a perspective view of an electric oven with good heat preservation effect when a door body is opened;

FIG. 2 is a sectional view of a side structure of an electric oven with good heat preservation effect when a door body is closed;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a perspective view of a door body of an electric oven with good heat preservation effect;

fig. 5 is a perspective view of an inner heat insulation rubber frame of an electric oven with good heat insulation effect;

FIG. 6 is an enlarged view of a portion of FIG. 5 at B;

FIG. 7 is a perspective view of an inner door frame of an electric oven with good heat preservation effect;

FIG. 8 is a side cross-sectional view of another direction of an electric oven with good thermal insulation effect provided by the utility model;

FIG. 9 is an enlarged view of a portion of FIG. 8 at C;

FIG. 10 is a cross-sectional view A-A of FIG. 8;

fig. 11 is a sectional view of B-B in fig. 8.

In the accompanying drawings: the heat insulation box comprises a box body 1, a door body 2, a transparent plate 21, a frame body 22, a sealing piece 23, a sealing shell 231, a turning part 232, a heat insulation component 3, a heat insulation layer 31, a heat insulation cover 32, an outer door frame 4, an outer edge part 41, an outer corner part 42, an outer right angle part 43, an inner heat insulation rubber frame 5, an inner edge part 51, a heat insulation part 52, a bending part 53, an inner right angle part 54, a notch 55, an inner door frame 6, a shell 61, a binding part 62, a protrusion 63, a supporting bracket body 7, a guide rail groove 71, a baking net 72, pizza stone 73, an inner container 8, an inner bottom plate 9, an outer bottom plate 10, a rear inner plate 11, a rear outer shell 12, heat insulation cotton 13, a heat insulation piece 14 outer ring 15, a heating pipe 16 and a lower heating pipe 16.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the specific technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings in the embodiments of the present utility model. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In embodiments of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

Furthermore, in the embodiments of the present utility model, the terms "upper," "lower," "left," and "right," etc., are defined with respect to the orientation in which the components in the drawings are schematically disposed, and it should be understood that these directional terms are relative terms, which are used for descriptive and clarity with respect to each other, and which may vary accordingly with respect to the orientation in which the components in the drawings are disposed.

In embodiments of the present utility model, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either a fixed connection, a removable connection, or an integral unit; can be directly connected or indirectly connected through an intermediate medium.

In embodiments of the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In embodiments of the utility model, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment of the present utility model is not to be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

Example 1

As shown in fig. 1 to 7, the structure diagram of the electric oven with good heat preservation effect provided by the utility model comprises: inside cavity and one side are equipped with open-ended box 1, fixed mounting in the inside inner bag 8 of box 1, rotate install in box 1 one side just can seal cover open-ended door body 2, door body 2 includes: the box comprises a plurality of transparent plate pieces 21 which are arranged in parallel at intervals, a frame body 22 fixedly wound on the periphery of each transparent plate piece 21, and a sealing piece 23 fixedly wound on the periphery of the transparent plate piece 21 close to one side of the box body 1 and attached to the inner wall of the frame body 22, wherein the sealing piece 23 can be abutted against the end face of one side of the box body 1 close to an opening; a heat insulation cavity is formed between two adjacent transparent plates 21 and the inner wall of the frame 22, and the electric oven further comprises a heat insulation component 3 coated on the outer side of the inner container 8.

In practical application, the plurality of transparent plates 21 are arranged at intervals in parallel, and the frame 22 is wound around the periphery of each transparent plate 21, so that a heat insulation cavity is formed between two adjacent transparent pieces and the inner wall of the frame 22, and the heat conduction between the transparent plate 21 close to the box 1 and the transparent plate 21 far from the box 1 is effectively reduced by the combined action of the plurality of heat insulation cavities, so that the loss of heat in the oven is reduced; the sealing piece 23 is used for conveniently sealing the joint of the door body 2 and the box body 1, so that the gap between the door body 2 and the box body 1 is conveniently sealed, and the hot air flow in the box body 1 is prevented from leaking out from the periphery of the door gap; and through cladding in the heat preservation subassembly 3 in the inner bag 8 outside, further carry out thermal-insulated processing to the inner bag 8, reduce the heat loss, consequently provide structural basis for the oven of design higher furnace temperature, be convenient for roast food fast under higher temperature, pin the inside moisture of food, promote the efficiency of toasting of electric oven and the taste of food.

In actual operation, the embodiment is characterized in that the food to be roasted is placed into the inner container 8 through the opening by the box body 1 and the inner container 8 fixedly arranged in the box body 1, and then the opening is covered by the door body 2 for roasting; the use of the sealing member 23 also reduces the heat conduction to the outside of the transparent plate member 21 on the side close to the case 1, further reducing the heat transfer.

Further, the frame 22 includes: the outer door frame 4, with interior heat-insulating glue frame 5 that outer door frame 4 relatively laid and can dismantle connect in interior heat-insulating glue frame 5 keep away from inner door frame 6 of outer door frame 4 one side, sealing member 23 laminating in on the inner wall of inner door frame 6.

It can be known that the outer door frame 4, the inner heat insulation rubber frame 5 and the inner door frame 6 which are wound around the periphery of the transparent piece are convenient to form a plurality of heat insulation cavities, so that heat flowing out of the door body 2 is reduced, the temperature of the door body 2 is further reduced, and the door body 2 is prevented from being excessively high; and the gap between the door body 2 and the box body 1 is blocked by the sealing piece 23 attached to the inner door frame 6, so that heat dissipation is reduced.

Still further, the outer door frame 4 includes: an outer edge 41, an outer corner 42 and an outer right angle 43 which are connected in sequence, wherein a containing groove for containing the transparent plate 21 is formed between the outer corner 42 and the outer wall of the outer right angle 43; the transparent plate 21 as the outermost side of the door body 2 is easily installed by forming the receiving groove between the outer corners 42 and the outer walls of the outer right-angle portions 43.

In one aspect of this embodiment, the inner heat insulation frame 5 includes: the inner side portion 51, the heat insulation portion 52, the bending portion 53, and the inner right angle portion 54 opposite to the outer right angle portion 43, which are connected in sequence, wherein the inner side portion 51 is fixedly attached to the inner wall of the outer side portion 41, the inner door frame 6 is detachably mounted on the inner right angle portion 54, the inner right angle portion 54 is provided with a plurality of slots 55 in a penetrating manner along the thickness direction, and the number of the slots 55 is plural.

The inner edge 51 adhered to the inner wall of the outer edge 41 is convenient to connect with the outer door frame 4, and is opposite to the end face of the case 1 through the heat insulation part 52, so that the heat transferred from the case 1 is further blocked; the inner door frame 6 is easily detachably installed by using a plurality of notches 55 formed in the inner right angle portion 54.

In another case of the present embodiment, the inner door frame 6 includes: a casing 61 attached to the outer wall of the bent portion 53, a welt portion 62 connected to the casing 61 and attached to the outer wall of the inner right-angle portion 54 in a sealing manner, and a plurality of protrusions 63 fixedly connected to the casing 61 at a side close to the inner right-angle portion 54 and capable of being inserted into the notch 55; the welt 62 is used for facilitating the sealing connection with the outer wall of the inner right-angle part 54, so that the sealing element 23 can be matched with the inner right-angle part 54, the inner door frame 6 and the sealing element 23 to ensure the connection tightness; the inner door frame 6 is easily detachably mounted inside the recess by means of the projection 63.

In practical application, the notch 55 on the inner right-angle part 54 can be square, the middle of the protrusion 63 can be provided with a notch, and the width of the end part is slightly larger than the lug of the notch 55, so that the protrusion is installed in the notch 55 in an interference manner; the number of the protrusions 63 and the notches 55 are equal, and may be plural along the outer circumference of the transparent member according to the size of the inner heat insulation rubber frame 5, and the embodiment is not particularly limited herein.

In one example of the utility model, the seal 23 comprises: a seal shell 231 attached to the outer wall of the housing 61 and the outer wall of the welt 62 and having a recess therein, and a turning part 232 fixedly connected to one side of the seal shell 231 near the case 1; the transparent plate members 21 are provided in three and are fixed inside the receiving groove of the outer door frame 4, between the outer right angle portion 43 and the inner right angle portion 54, and inside the recess of the sealing member 23, respectively.

It can be known that the sealing of the gap between the door body 2 and the case body 1 is facilitated by the sealing shell 231 and the turning part 232, the leakage of the hot air flow from the periphery of the door gap is prevented, and the installation of the transparent plate 21 close to one side of the case body 1 is facilitated by the provision of the notch.

In actual operation, the inner right-angle portion 54 is further provided with a through hole along the thickness direction, so that the sealing strip, the transparent plate 21 and the bottom of the inner door frame 6 are fixedly connected together in a penetrating manner by using the fastening bolt to realize positioning and fixing; the through holes are arranged near the outer peripheral position of the transparent plate 21 and are plural in number.

In one case of the present embodiment, the transparent plate member 21 may be provided in three so as to form two heat insulation chambers, and the transparent plate member 21 at the intermediate position may be fixed between the ends of the outer right angle portion 43 and the inner right angle portion 54; the transparent plate member 21 may be provided in plural, for example, in the intermediate position, and the number of transparent plate members 21 in the present embodiment is not limited thereto.

By way of example, the seal 23 may be provided as a high temperature resistant silicone seal, and the outer and inner door frames 4, 6 may be provided as a temperature resistant plastic that is not readily thermally conductive to reduce thermal conduction for energy conservation.

Illustratively, the transparent plate 21 may be configured as tempered glass, and the transparent plate 21 near the side of the case 1 may be LOW-E glass, coated glass or colored glass to reduce light transmittance and radiation while increasing the reflection effect on the food surface; the cross-sectional shape of the transparent plate 21 may be polygonal, and the outer frame 4, the inner heat-insulating glue frame 5, the inner frame 6, and the sealing strip are all wound around the outer periphery of the transparent plate 21 and are adapted to the shape thereof, which is not particularly limited herein.

Example 2

On the basis of embodiment 1, as shown in fig. 1 to 8, the heat insulation assembly 3 comprises: the heat insulation layer 31 is coated on the outer surface of the liner 8, and the heat insulation cover 32 is sleeved on the outer surface of the heat insulation layer 31.

In practical application, the heat insulation layer 31 is coated on the outer surface of the inner container 8, so that heat in the inner container 8 can be reduced from being dissipated to the outside, and the heat insulation cover 32 arranged on the outer surface of the heat insulation layer 31 can be used for insulating heat and heat of the inner cavity of the box body 1;

specifically, one of the heat insulation layer 31 and the heat insulation cover 32 is selected for heat insulation according to the setting of the highest furnace temperature of the oven, or the heat insulation layer and the heat insulation cover are matched to meet different furnace temperature requirements.

Illustratively, the material of the insulating layer 31 may be provided as heat-resistant cotton, thereby wrapping the entire liner 8; the heat shield 32 may be configured as a hardware stamping heat shield, which fully ensures the heat insulation requirement of the liner 8, although the materials of the heat shield 31 and the heat shield 32 may be selected as required, and the embodiment is not limited herein.

Further, the inner container 8 is provided with a U-shape, and a top corner of the inner container 8 is provided with a plane chamfer.

It can be known that the inner container 8 is arranged in a U shape, so that the inner cavity of the box body 1 is conveniently designed into a flat structure with a larger food placing plane, and the corners above the U-shaped inner container 8, which are low in left and right utilization rate, are subjected to chamfering treatment, so that light and radiation energy can be better reflected to the edge surface of food, and the energy consumption of the ineffective space of the inner cavity is eliminated.

Further, the bottom plate of the box body 1 is provided with an inner bottom plate 9 and an outer bottom plate 10 which are arranged at intervals in a laminated manner, the back plate of the box body 1 is provided with a rear inner plate 11 and a rear outer shell 12 which are fixedly connected, and heat insulation cotton 13 is filled between the rear inner plate 11 and the rear outer shell 12.

It can be known that the bottom plate of the box body 1 is arranged to be the inner bottom plate 9 and the outer bottom plate 10, so that the high-temperature inner cavity and the low-temperature outer shell can be separated, the heat insulation cotton 13 which is difficult to transfer heat is adopted between the rear inner plate 11 and the rear outer shell 12 for further heat insulation, the internal wiring can be protected, the temperature of the rear outer shell 12 is greatly reduced compared with that of a single-layer back plate oven, the heat dissipation is reduced, and the energy efficiency is improved.

In actual operation, the outer ring temperature-resistant member 14 opposite to the inner heat-insulating rubber frame 5 is disposed on the side of the box 1 close to the opening.

It should be noted that, the heat conduction of the liner 8 to the outer shell of the box 1 can be reduced by using the outer ring temperature-resistant plastic part, so as to further improve the heat preservation effect of the oven; illustratively, the material of the outer ring temperature resistant member 14 may be set to be temperature resistant plastic, and may be fixed at a position near the end face of the case 1 to satisfy the heat insulation requirement.

Example 3

As shown in fig. 1 to 3 and fig. 8 to 11, on the basis of embodiment 1 and embodiment 2, the electric oven further includes: the heating device comprises an upper heating tube 15 fixedly mounted on the inner wall of the top of the inner container 8, a lower heating tube 16 fixedly mounted on the inner wall of the bottom of the inner container 8, and a support bracket body 7 fixedly mounted on the inner container 8 and positioned above the lower heating tube 16.

Specifically, with the lower heating tube 16 and the support bracket 7 provided at the bottom of the inner container 8, since the support bracket 7 is close to the lower heating tube 16, the power of the upper heating tube 15 can be set to be larger than that of the lower heating tube 16, so that the space of the inner container 8 and the radiant energy of the heating tube can be utilized better.

Further, as shown in fig. 9, the support bracket body 7 includes: the heating device comprises a guide rail groove 71 fixedly arranged on the inner wall of the inner container 8 and arranged close to the lower heating tube 16, a baking net 72 inserted in the guide rail groove 71, and a pizza stone 73 arranged on the baking net 72.

It can be known that the baking net 72 for placing food is conveniently installed by using the guide rail groove 71 fixedly installed on the inner wall of the inner container 8, and the pizza stone 73, the baking tray or the frying basket and the like can be stacked on the baking net 72 according to different baked foods so as to meet different baking requirements.

For example, the upper heating tube 15 and the lower heating tube 16 may be formed in an M shape or an O shape, so that energy is uniformly applied to the entire surface of the food as much as possible, thereby effectively preventing the energy from being concentrated at the middle position of the food and the nearest position to the heating tube, and improving uniformity of baking the food.

In the embodiment of the utility model, the electric oven with good heat preservation effect is provided, because the plurality of transparent plates 21 are arranged in parallel at intervals, and the frame 22 is wound on the periphery of each transparent plate 21, thereby forming a heat insulation cavity between two adjacent transparent pieces and the inner wall of the frame 22, and the heat conduction between the transparent plates 21 close to the oven body 1 and the transparent plates 21 far from the oven body 1 is effectively reduced by the combined action of the plurality of heat insulation cavities, so that the loss of heat in the oven is reduced; the sealing piece 23 is used for conveniently sealing the joint of the door body 2 and the box body 1, so that the gap between the door body 2 and the box body 1 is conveniently sealed, the hot air flow in the box body 1 is prevented from leaking out from the periphery of the door gap, the heat conduction to the outside of the transparent plate 21 close to one side of the box body 1 can be reduced by using the sealing piece 23, and the heat transfer is further reduced; and through cladding in the heat preservation subassembly 3 in the inner bag 8 outside, further carry out thermal-insulated processing to the inner bag 8, reduce the heat loss, consequently provide structural basis for the oven of design higher furnace temperature, be convenient for roast food fast under higher temperature, pin the inside moisture of food, promote the efficiency of toasting of electric oven and the taste of food.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. An electric oven with good heat preservation effect, comprising: inside cavity and one side are equipped with open-ended box (1), fixed mounting in inside inner bag (8) of box (1), rotate install in box (1) one side just can seal and cover open-ended door body (2), a serial communication port, door body (2) include: the box comprises a plurality of transparent plate members (21) which are arranged in parallel at intervals, a frame body (22) fixedly wound on the periphery of each transparent plate member (21), and sealing pieces (23) fixedly wound on the periphery of the transparent plate member (21) close to one side of the box body (1) and attached to the inner wall of the frame body (22), wherein the sealing pieces (23) can be abutted against one end face of the box body (1) close to an opening; a heat insulation cavity is formed between two adjacent transparent plates (21) and the inner wall of the frame body (22), and the electric oven further comprises a heat insulation component (3) coated on the outer side of the inner container (8).

2. An electric oven with good heat preservation effect according to claim 1, characterized in that the frame (22) comprises: the outer door frame (4), with interior heat-insulating glue frame (5) that outer door frame (4) relatively laid and can dismantle connect in interior heat-insulating glue frame (5) keep away from interior door frame (6) of outer door frame (4) one side, sealing member (23) laminating in on interior door frame (6) inner wall.

3. An electric oven with good heat preservation effect according to claim 2, characterized in that the outer door frame (4) comprises: the outer corner (41), the outer corner (42) and the outer right angle (43) are connected in sequence, and a containing groove for containing the transparent plate (21) is formed between the outer corner (42) and the outer wall of the outer right angle (43).

4. An electric oven with good heat preservation effect according to claim 3, characterized in that the inner heat-insulating glue frame (5) comprises: interior limit portion (51), thermal-insulated portion (52), portion of bending (53) and with interior right angle portion (54) that outer right angle portion (43) are relative that meet in proper order, interior limit portion (51) fixed laminating in outside portion (41) inner wall, interior door frame (6) demountable installation in interior right angle portion (54), interior right angle portion (54) are run through along thickness direction and are offered notch (55) that are used for installing interior door frame (6), just the quantity of notch (55) is a plurality of.

5. An electric oven with good heat preservation effect according to claim 4, characterized in that the inner door frame (6) comprises: the shell body (61) is attached to the outer wall of the bending part (53), the welt part (62) is connected to the shell body (61) and is attached to the outer wall of the inner right-angle part (54) in a sealing mode, and the plurality of protrusions (63) are fixedly connected to one side, close to the inner right-angle part (54), of the shell body (61) and can be connected to the inside of the notch (55) in a penetrating mode.

6. An electric oven with good heat preservation effect according to claim 5, characterized in that the sealing element (23) comprises: a sealing shell (231) attached to the outer wall of the shell (61) and the outer wall of the welt part (62) and internally provided with a notch, and a turning part (232) fixedly connected to one side of the sealing shell (231) close to the box body (1); the transparent plate members (21) are provided in three and are respectively fixed inside the accommodation groove of the outer door frame (4), between the outer right angle portion (43) and the inner right angle portion (54), and inside the recess of the seal member (23).

7. An electric oven with good heat preservation effect according to claim 1, characterized in that the heat preservation component (3) comprises: the heat insulation layer (31) is coated on the outer surface of the inner container (8), and the heat insulation cover (32) is sleeved on the outer surface of the heat insulation layer (31), the inner container (8) is arranged into a U shape, and the corner of the top of the inner container (8) is arranged into a plane chamfer.

8. The electric oven with good heat preservation effect according to claim 2, characterized in that the bottom plate of the oven body (1) is an inner bottom plate (9) and an outer bottom plate (10) which are arranged at intervals in a lamination way, the back plate of the oven body (1) is a rear inner plate (11) and a rear outer shell (12) which are fixedly connected, and heat insulation cotton (13) is filled between the rear inner plate (11) and the rear outer shell (12); one side of the box body (1) close to the opening is provided with an outer ring temperature resistant piece (14) which is used for being opposite to the inner heat insulation rubber frame (5).

9. The electric oven with good heat preservation effect according to any one of claims 1 to 8, further comprising: the inner container comprises an upper heating tube (15) fixedly mounted on the inner wall of the top of the inner container (8), a lower heating tube (16) fixedly mounted on the inner wall of the bottom of the inner container (8) and a support bracket body (7) fixedly mounted on the inner container (8) and positioned above the lower heating tube (16).

10. An electric oven with good heat preservation effect according to claim 9, characterized in that the support bracket body (7) comprises: the heating device comprises a guide rail groove (71) fixedly arranged on the inner wall of the inner container (8) and close to the lower heating tube (16), a baking net (72) inserted into the guide rail groove (71) and pizza stone (73) arranged on the baking net (72).