CN218164969U - an oven - Google Patents

Abstract

The utility model provides an oven, which comprises: a box body with a cavity with an opening at one end, and a heating element is arranged in the cavity; a control panel is arranged at the opening end of the box body; a heat insulation component is arranged at the In the cavity and fixedly connected with the box body, the heat insulation assembly is located between the control panel and the heating element; wherein, the heat insulation assembly is between the heating element and the control panel A separated heating chamber, a first heat dissipation chamber and a second heat dissipation chamber are sequentially formed. The oven of the utility model is beneficial to simplify the heat dissipation structure of the oven and reduce the heat dissipation cost of the oven.

Description

an oven

technical field

The embodiment of the utility model relates to the technical field of cooking utensils, in particular to an oven.

Background technique

With the popularity of oven products, ordinary mechanical ovens can no longer meet the needs of users for oven performance, and more and more users are beginning to choose electronic ovens. The electronic oven includes many electronic components, and the high temperature generated during the use of the oven will damage the electronic components and reduce the service life of the electronic components. Therefore, the electronic oven needs to design a corresponding heat dissipation structure for electronic components, but the cost of the heat dissipation structure is relatively high.

Utility model content

In view of this, the embodiment of the present invention is to provide an oven to solve how to reduce the cost of the heat dissipation structure.

In order to achieve the above object, the technical solution of the utility model embodiment is achieved in this way:

An embodiment of the utility model provides an oven, comprising: a box body with a cavity with one end open, and a heating element is arranged in the cavity; a control panel is arranged at the opening end of the box body; a heat insulation component is arranged In the cavity and fixedly connected with the box body, the heat insulation assembly is located between the control panel and the heating element; wherein, the heat insulation assembly is between the heating element and the control panel A separated heating chamber, a first heat dissipation chamber and a second heat dissipation chamber are sequentially formed therebetween.

In some embodiments, the heat insulation assembly includes: a first heat insulation board extending along a first direction, and the two ends of the first direction are respectively connected to the box body, and a second heat insulation board is arranged on the Between the first heat insulation board and the control panel, and the two ends of the second heat insulation board in the first direction are respectively connected to the box body; wherein, the first heat insulation board, the second The heat insulation board and the box body form the first heat dissipation chamber, and the second heat insulation board, the control panel and the box body enclose the second heat dissipation chamber.

In some implementations, the first heat insulation board and the box are respectively provided with first heat dissipation holes communicating with the first heat dissipation cavity.

In some embodiments, the box body further defines a second heat dissipation hole communicating with the second heat dissipation cavity.

In some embodiments, the first heat insulation board includes: a first side wall and a first top wall and a first bottom wall connected to opposite ends of the first side wall in the second direction, and the second The direction is perpendicular to the first direction, the second heat insulation board is connected to the first top wall and the first bottom wall, and the first heat dissipation hole is opened on the first bottom wall.

In some embodiments, the second heat insulation board includes: a second side wall and a second bottom wall connected to one end of the second side wall in the second direction, the second bottom wall and the first A bottom wall is connected, and the other end of the second side wall in the second direction is connected to the first top wall.

In some embodiments, the box includes: a U-shaped plate, including a rear side wall and a third side wall and a fourth side wall connected to opposite ends of the rear side wall in the first direction; the heating element Arranged in the U-shaped plate and connected to the third side wall and the fourth side wall; the bottom rear plate is L-shaped and surrounds the U-shaped plate from below and behind the U-shaped plate; chips a board, located above the bottom rear board and below the U-shaped board, adjacent to the cavity; wherein, both the first heat insulation board and the second heat insulation board are connected to the first heat insulation board The three side walls are connected with the fourth side wall.

In some embodiments, the first cooling hole is opened on the chip board.

In some embodiments, the first heat dissipation hole and the second heat dissipation hole are provided at intervals on the third side wall and/or the fourth side wall.

In some embodiments, the area of the second heat dissipation hole in the U-shaped plate is larger than the area of the first heat dissipation hole.

The embodiment of the utility model provides an oven, including a box body, a control panel and a heat insulation assembly; wherein, the box body has a cavity for setting a heating element, the control panel is arranged at the opening end of the box body, and the heat insulation assembly is located on the control panel Between the heating element and the heating element, and between the heating element and the control panel, a separated heating cavity, a first heat dissipation cavity and a second heat dissipation cavity are sequentially formed. In the oven of the embodiment of the utility model, by setting and separating the first cooling cavity and the second cooling cavity in sequence, the heat transmitted from the heating cavity to the control panel is continuously reduced, which can meet the temperature control requirements of the electronic components arranged in the control panel. In addition, there is no need to arrange other heat dissipation components such as fans, thereby facilitating the simplification of the heat dissipation structure of the oven and reducing the heat dissipation cost of the oven.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will give a brief description of the drawings that need to be used in the description of the embodiments. It should be understood that the drawings described below are only part of the drawings of the embodiment of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the exploded schematic diagram (explosion diagram) of the oven of the utility model embodiment;

Fig. 2 is the sectional schematic view of oven of the utility model embodiment;

Fig. 3 is the schematic diagram of the insulation assembly in the oven of the utility model embodiment;

Fig. 4 is the partially enlarged schematic diagram of place A in Fig. 2;

Fig. 5 is the schematic diagram of the casing in the oven of the utility model embodiment;

Fig. 6 is a partially enlarged schematic diagram of place B in Fig. 5;

Fig. 7 is the schematic diagram of the crumb plate in the oven of the embodiment of the present invention;

Fig. 8 is the schematic diagram of the control panel in the oven of the utility model embodiment;

Fig. 9 is a schematic diagram of the heat transfer of the oven according to the embodiment of the present invention.

Explanation of reference signs:

10. Box body; 11. Cavity; 12. Heating element; 13. U-shaped plate; 131. Rear side wall; 132. Third side wall; 133. Fourth side wall; 14. Chip board; 15. Bottom rear 16, top plate; 17, outer cover; 20, control panel; 21, panel; 22, second top wall; 23, third bottom wall; 30, heat insulation component; 31, first heat insulation board; 311, the first One side wall; 312, the first top wall; 313, the first bottom wall; 32, the second heat insulation board; 321, the second side wall; 322, the second bottom wall; 41, the heating cavity; 42, the first heat dissipation cavity; 43, the second cooling cavity; 44, the first cooling hole; 45, the second cooling hole.

detailed description

The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model. Moreover, the embodiments described below are only some of the embodiments of the present utility model, but not all of them. Those of ordinary skill in the art, according to these embodiments, all other embodiments obtained under the premise of not paying creative efforts, all belong to the scope of protection of the present utility model.

The various specific technical features described in the specific embodiments can be combined in any suitable manner if there is no contradiction, for example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, various possible combinations of specific technical features in the present invention will not be further described.

In the following description, the terms "first\second\..." are used only to distinguish different objects, and do not mean that there are similarities or connections among the objects. It should be understood that, unless otherwise specified, the orientation descriptions "above", "below", "outside" and "inside" are all orientations in normal use, and the directions of "left" and "right" are Indicates the left-right direction indicated in the specific corresponding schematic diagram.

It should be noted that the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes none other elements specifically listed, or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

The embodiment of the utility model provides an oven. As shown in FIG. 1 , the oven in the embodiment of the utility model includes a box body 10 , a control panel 20 and a heat insulation assembly 30 . Wherein, the casing 10 has a cavity 11 with an open end, it can be understood that the opening is provided at the front end of the casing, and a heating element 12 is arranged in the cavity 11; the heating element 12 is used to increase the temperature of the air in the cavity 11 to Baked food. In some embodiments, the heating element 12 can be a stainless steel heating tube. The control panel 20 is arranged at the opening end of the cavity 11, that is, at the front end of the box body, and is used to control the operation of the oven, such as controlling the temperature and working time of the oven.

As shown in FIG. 2 and FIG. 3 , the heat insulation assembly 30 is arranged in the cavity 11 and fixedly connected with the box body 10 , and the heat insulation assembly 30 is located between the control panel 20 and the heating element 12 . The heat insulation component 30 is used to isolate the heat generated by the heating element 12 from the electronic components of the control panel 20 , which can reduce the damage of the electronic components due to high temperature and improve the service life of the electronic components. The heat insulation assembly 30 sequentially forms a separated heating chamber 41 , a first heat dissipation chamber 42 and a second heat dissipation chamber 43 between the heat generating element 12 and the control panel 20 . The separation here means that the heating chamber 41, the first heat dissipation chamber 42 and the second heat dissipation chamber 43 do not have a direct communication relationship, and the heat insulation assembly 30 does not provide a through hole connecting the above three chambers, so that the air flow cannot pass through the heating chamber. 41 directly flows to the first cooling cavity 42 and then flows to the second cooling cavity 43. It can be understood that the heating chamber 41 , the first heat dissipation chamber 42 and the second heat dissipation chamber 43 are arranged in order from inside to outside. Then, through the above arrangement, heat can be prevented from being transferred from the hot air flow in the heating chamber 41 to the electronic components through thermal convection. Those skilled in the art will understand that heat transfer methods include heat convection, heat conduction and heat radiation; heat convection refers to the method of heat transfer in gas or liquid; heat conduction refers to the method of heat transfer along solid objects , from the part of the object with higher temperature along the object to the part with lower temperature; heat radiation is the heat emitted from the heat source itself along a straight line, heat radiation does not rely on any medium such as solid, liquid, gas, etc., and can be carried out in a vacuum .

The utility model arranges two spaced cooling chambers sequentially through the heat insulation assembly, which not only can block heat convection, but also can reduce heat conduction and heat radiation because the distance between the control panel and the heating element is relatively long due to the arrangement of the two cooling chambers. Thereby, the heat transferred from the heating element to the control panel is reduced on the whole, and the heat insulation efficiency is improved, so that other heat dissipation components such as fans are not required, which is beneficial to simplify the heat dissipation structure of the oven and reduce the heat dissipation cost of the oven.

In some embodiments, as shown in FIGS. 2 and 3 , the heat insulation assembly 30 includes a first heat insulation board 31 and a second heat insulation board 32 . Wherein, the first heat insulation board 31 extends along the first direction, and the two ends in the first direction are respectively connected to the box body 10 . In this embodiment, the first direction refers to the width direction of the oven or the left-right direction in the working state, which is marked as D1 in the drawings; the second direction is perpendicular to the first direction, and is the height direction of the oven or the up-down direction in the working state. The direction is marked as D2 in the accompanying drawings; the third direction is the front and rear directions of the oven, and is marked as D3 in the accompanying drawings.

As shown in Figures 1-3, the two ends of the first heat shield 31 in the first direction are respectively connected to the box body 10, which can block the flow of hot air from the heating chamber 41 to the first heat dissipation chamber 42 in the third direction, that is The flow of the airflow in the front and rear directions of the box body 10 is blocked. as shown in picture 2. The second heat insulation board 32 is disposed between the first heat insulation board 31 and the control panel 20 , and both ends of the second heat insulation board 32 in the first direction are respectively connected to the box body 10 . The two ends of the second heat shield 32 in the first direction are respectively connected to the box body 10, which can block the hot air flow from the first heat dissipation cavity 42 to the second heat dissipation cavity 43 along the third direction, that is, block the air flow in the front and rear direction of the box body 10. flow.

As shown in Fig. 2 and Fig. 4, the first thermal insulation board 31, the second thermal insulation board 32 and the box body 10 form the first cooling chamber 42; the second thermal insulation board 32, the control panel 20 and the box body 10 enclose the Two cooling chambers 43 . In some embodiments, the box body 10 can participate in enclosing the first cooling cavity 42 or the second cooling cavity 43 through its inner wall, such as a side wall, a bottom wall or a top wall, and the control panel 20 can pass through the inner wall facing the box body 10 Participate in enclosing the second cooling cavity 43 . The first heat insulation board 31 or the second heat insulation board 32 can be the side wall of the first heat dissipation chamber 42 or the second heat dissipation chamber 43, and can also participate in enclosing the first heat dissipation chamber 42 or the second heat dissipation chamber by bending upwards or downwards. The top wall or the bottom wall of the second cooling cavity 43 .

In some embodiments, as shown in FIGS. 3 and 4 , the first insulation board 31 includes a first side wall 311 , a first top wall 312 and a first bottom wall 313 , and the first top wall 312 and the first bottom wall 313 are connected to opposite ends of the first side wall 311 in the second direction. The first top wall 312 and the first bottom wall 313 can be formed by bending the above-mentioned first heat insulation board 31 upwards or downwards, and the first top wall 312 and the first bottom wall 313 can be the top of the first heat dissipation cavity 42 wall and bottom wall. The second heat insulation board 32 connects the first top wall 312 and the first bottom wall 313 , and separates the first heat dissipation chamber 42 from the second heat dissipation chamber 43 . In this way, the first heat insulation board 31 can be better connected with the control panel 20 and the box body 10 by bending up and down, and also can reduce the leakage at the joint between the first heat insulation board 31 and the control panel 20 and the box body 10 , better heat insulation.

In some embodiments, as shown in FIG. 3 and FIG. 4 , the first heat shield 31 defines a first heat dissipation hole 44 communicating with the first heat dissipation cavity 42 . In this way, heat can be transferred from the heat dissipation holes to the outside of the box body 10, or the air outside the box body 10 can be introduced into the first heat dissipation cavity 42, that is, heat exchange occurs through heat convection. In this way, the gas in the first heat dissipation cavity 42 is cooled, and the heat that can be transferred to the second heat dissipation cavity 43 is reduced. In some embodiments, a first heat dissipation hole 44 is opened on the first bottom wall 313 . In this way, the air outside the box body 10 can flow into the first heat dissipation cavity 42 through the first heat dissipation holes 44 to cool the gas in the first heat dissipation cavity 42 .

In some embodiments, as shown in FIG. 3 and FIG. 4 , the second insulation board 32 includes a second side wall 321 and a second bottom wall 322 , and the second bottom wall 322 is connected in a second direction of the second side wall 321 one end. The second bottom wall 322 is connected to the first bottom wall 313, and the other end of the second side wall 321 in the second direction is connected to the first top wall 312, that is, the above-mentioned second heat insulation board 32 is connected to the first top wall 312 And the first bottom wall 313 separates the first cooling cavity 42 and the second cooling cavity 43 . The second bottom wall 322 may be formed by bending the above-mentioned second heat insulation board 32 downward. In this way, the second heat insulation board 32 is bent downward to facilitate connection with the first heat insulation board 31 and to separate the first heat dissipation chamber from the second heat dissipation chamber to reduce heat transfer.

In some embodiments, as shown in FIG. 1 and FIG. 5 , the box body 10 includes a U-shaped board 13 , a chip board 14 , a bottom and rear board 15 , a top board 16 , an outer cover 17 and the like. Wherein, the heating element 12 is arranged in the U-shaped plate 13 and connected to the opposite side walls of the U-shaped plate 13. The U-shaped plate 13 includes the above-mentioned opposite side walls and the rear side connected between the rear side edges of the two side walls. Wall 131; the opposite side walls are respectively the third side wall 132 and the fourth side wall 133, the third side wall 132 and the fourth side wall 133 are opposite in the first direction, the rear side wall 131, the third side wall 132 and the fourth side wall 133 form a "U" shape, so it is called a U-shaped plate. The bottom rear plate 15 is L-shaped and surrounds the U-shaped plate 13 from the bottom and rear of the U-shaped plate 13 . The chip board 14 is located above the bottom rear board 15 and below the U-shaped board 13, adjacent to the cavity 11. Top plate 16 is positioned at the top of U-shaped plate 13, covers the top of cavity 11. The outer cover 17 is arranged on the outside of the integral body of the top plate 16 and the U-shaped plate 13 , and is connected and fixed with the bottom rear plate 15 . The control panel 20 is arranged at the front end of the cavity 11 and fixedly connected with the U-shaped plate 13 , that is, the two ends of the control panel 20 are respectively connected with the third side wall 132 and the fourth side wall 133 . Both ends of the first heat insulation board 31 and the second heat insulation board 32 are respectively connected to the box body 10 in the first direction, which refers to the connection with the third side wall 132 and the fourth side wall 133 respectively. In some embodiments, the U-shaped plate 13 is integrally formed, so that the cavity 11 can have good thermal insulation performance.

In some embodiments, as shown in FIG. 2 and FIG. 5 , the third side wall 132 and/or the fourth side wall 133 are provided with first heat dissipation holes 44 and second heat dissipation holes 45 arranged at intervals. It should be noted that, in this application, the through holes connecting the first heat dissipation chamber and the outside world are defined as the first heat dissipation holes, and the through holes connecting the second heat dissipation chamber and the outside world are defined as the second heat dissipation holes, and the heat dissipation holes are not limited. The specific location opened. The third sidewall 132 and/or the fourth sidewall 133 respectively defines a first heat dissipation hole 44 communicating with the first heat dissipation chamber 42 . The heat transferred from the heating element to the first heat dissipation cavity can be dissipated from the first heat dissipation hole to the outside through heat convection, thereby reducing the heat conducted from the first heat dissipation cavity to the second heat dissipation cavity. Optionally, both the third side wall 132 and the fourth side wall 133 have first heat dissipation holes 44, so that the gas in the first heat dissipation chamber 42 can better convect heat with the air outside the box body 10, so that heat convection more efficient. In some embodiments, the third side wall 132 and/or the fourth side wall 133 are respectively provided with a second heat dissipation hole 45 communicating with the second heat dissipation cavity 43. Similarly, the heat in the second heat dissipation cavity can be passed through heat convection. Dissipate heat from the second cooling hole to the outside, reduce the temperature of the gas in the second cooling cavity 43, thereby further reducing the heat transmitted from the second cooling cavity to the control panel and reducing the heat transmitted to the electronic components, which can meet the requirements of the control panel. The temperature control requirements of electronic components. Optionally, both the third side wall 132 and the fourth side wall 133 define second cooling holes 45 . The first heat dissipation hole 44 and the second heat dissipation hole 45 on the third side wall 132 or the fourth side wall 133 are arranged at intervals, that is, the first heat dissipation hole 44 and the second heat dissipation hole 45 are not directly communicated, so as to avoid the heat of the first heat dissipation cavity It directly flows into the second heat dissipation cavity through the first heat dissipation hole 44 or the second heat dissipation hole 45 .

In some embodiments, as shown in FIG. 5 and FIG. 6 , the area of the second heat dissipation hole 45 in the U-shaped plate 13 is larger than the area of the first heat dissipation hole 44 . The embodiment of the utility model is provided with larger cooling holes, on the one hand, it is beneficial to use the area of the third side wall 132 or the fourth side wall 133 on the outside of the second cooling cavity, on the other hand, the inside of the second cooling cavity and the control panel Adjacent to each other, setting a large-area cooling hole is beneficial to improve the cooling effect.

As shown in FIGS. 5 and 7 , the chip board 14 is located above the bottom rear board 15 and below the U-shaped board 13 . The crumb plate 14 is used to receive the crumbs generated when heating food, and can move relative to the U-shaped plate 13 along the third direction, that is, move back and forth to remove the crumbs. The chipboard 14 is located below the first heat shield 31 and defines a first cooling hole 44 . Referring to FIG. 4 , since the chipboard 14 is located below the first heat insulation board 31 , and the first heat insulation board 31 participates in enclosing the first heat dissipation cavity. Therefore, the opening positions of the first heat dissipation holes 44 of the chip board 14 and the first heat dissipation holes 44 of the first heat insulation board 31 are aligned, and the diameter of the first heat dissipation holes 44 of the chip board 14 must be greater than or equal to that of the first heat insulation board 31. The first heat dissipation hole 44 of the board 31 . In this way, the external heat exchange of the first heat dissipation cavity 42 through the first heat dissipation holes 44 will not be blocked by the chip plate 14 , and the heat dissipation performance of the first heat dissipation cavity 42 will not be affected. The alignment here refers to the alignment of the center of the cooling hole, if it is a circular hole, the center of the circle is aligned, and the holes of other shapes are analogous.

As shown in FIGS. 1 and 8 , the outer wall of the control panel 20 facing away from the cavity 11 is provided with buttons or knobs for controlling electronic components, and the inner wall of the control panel 20 facing the cavity 11 is equipped with a plurality of electronic components. The electronic components are electrically connected with the button or the knob.

In some embodiments, as shown in FIG. 4 and FIG. 8 , the control panel 20 includes a panel 21 , a second top wall 22 and a third bottom wall 23 , and the second top wall 22 and the third bottom wall 23 are connected at the top of the panel 21 The two opposite ends in the second direction, that is, the two ends in the vertical direction. The second top wall 22 is connected to the first top wall 312 in the third direction, and the third bottom wall 23 is connected to the first bottom wall 313 in the third direction, that is, in the front-rear direction. The third bottom wall 23 is provided with a second cooling hole 45, like this, the air outside the casing 10 and the cavity in the second cooling cavity can flow into the second cooling cavity 43 through the second cooling hole 45 to carry out convective heat exchange, and then reduce The temperature of the electronic components in the second cooling cavity 43 .

In order to better understand the heat insulation principle of the oven in the embodiment of the present utility model, the following describes the transfer process of the heat generated by the heating element to the electronic components.

As shown in Figures 5 and 9, during the working process of the oven, the heating element in the heating chamber 41 generates heat, and the heat generated by the heating element is transmitted to the first heat insulating board 31 through conduction or radiation. The first cooling cavity is directly connected, so that the air heated by the heating element in the heating cavity 41 cannot be transferred to the first cooling cavity by heat convection. The first thermal insulation board 31 transfers heat to the first cooling cavity 42 by conduction or radiation again (the moving direction of the heat is represented by a dotted line with an arrow), and the heat of the gas in the first cooling cavity 42 increases, that is, the temperature rises; then , the heat in the first heat dissipation chamber 42 is transferred to the second heat insulation board 32 by conduction or radiation, and the second heat insulation board 32 transfers the heat to the second heat dissipation chamber 43 by conduction or radiation, and the gas in the second heat dissipation chamber 43 The amount of heat increases, that is, the temperature rises. At the same time, the first heat insulating plate 31 blocks the gas in the heating cavity 41 from flowing to the first heat dissipation cavity by convection, and the second heat insulating plate 32 blocks the gas in the first heat dissipation cavity from flowing to the second heat dissipation cavity by convection. cavity, thereby reducing the heat transferred to the second cooling cavity. And, through the first heat dissipation hole 44, the gas in the first heat dissipation chamber 42 exchanges heat with the gas outside the box body 10, reducing the temperature of the gas in the first heat dissipation chamber and the second heat shield 32; through the second heat dissipation hole 45, The gas in the second heat dissipation cavity 43 exchanges heat with the gas outside the box body 10 to reduce the temperature of the gas in the second heat dissipation cavity and the electronic components. Wherein, the radiating holes at the bottom of the oven in working state generally only flow into the cold air (the flow direction of the cold air is represented by a wavy line with arrows), and the radiating holes on both sides of the oven in the working state are, for example, opened on the third side wall 132 and the third side wall 132 . The cooling holes on the four side walls 133 allow the inflow of cold air and the outflow of hot air to occur (not shown in the drawings).

The embodiment of the utility model reduces the heat transmitted to the control panel to a large extent through the heat insulation component and the first heat dissipation chamber and the second heat dissipation chamber arranged in sequence from the inside to the outside, and can meet the requirements of the control panel. Temperature control requirements for electronic components. Therefore, the embodiment of the utility model does not require an additional heat dissipation fan, which simplifies the structure of the oven and is beneficial to reduce heat dissipation costs.

The above is only a preferred embodiment of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement and improvement made within the spirit and principles of the utility model are all Should be included in the scope of protection of the present utility model.

Claims (10)

1. An oven, comprising:

the box body is provided with a cavity with one open end, and a heating piece is arranged in the cavity;

the control panel is arranged at the opening end of the box body;

the heat insulation assembly is arranged in the cavity and fixedly connected with the box body, and the heat insulation assembly is positioned between the control panel and the heating element;

the heat insulation assembly sequentially forms a separated heating cavity, a first heat dissipation cavity and a second heat dissipation cavity between the heating part and the control panel.

2. The oven of claim 1, wherein said insulation assembly comprises:

a first heat insulation board extending along a first direction, wherein two ends of the first heat insulation board in the first direction are respectively connected with the box body,

the second heat insulation plate is arranged between the first heat insulation plate and the control panel, and two ends of the second heat insulation plate in the first direction are respectively connected with the box body;

the first heat insulation board, the second heat insulation board and the box body form the first heat dissipation cavity, and the second heat insulation board, the control panel and the box body enclose the second heat dissipation cavity.

3. The oven of claim 2, wherein the first heat shield and the oven body are respectively provided with first heat dissipation holes communicated with the first heat dissipation cavity.

4. The oven of claim 3, wherein the box body is further provided with a second heat dissipation hole communicated with the second heat dissipation cavity.

5. An oven as claimed in any one of claims 3 to 4 wherein said first heat shield comprises: the heat insulation plate comprises a first side wall, a first top wall and a first bottom wall, wherein the first top wall and the first bottom wall are connected to two opposite ends of the first side wall in a second direction, the second direction is perpendicular to the first direction, the second heat insulation plate is connected with the first top wall and the first bottom wall, and the first heat dissipation hole is formed in the first bottom wall.

6. The oven of claim 5, wherein said second heat shield comprises: the second side wall and connect in the second diapire of the one end of second direction of second side wall, the second diapire with first diapire is connected, the other end of the second direction of second side wall with first roof is connected.

7. The oven of claim 4, wherein the case comprises:

the U-shaped plate comprises a rear side wall, and a third side wall and a fourth side wall which are connected to two opposite ends of the rear side wall in the first direction; the heating element is arranged in the U-shaped plate and is connected with the third side wall and the fourth side wall;

the bottom rear plate is arranged in an L shape and surrounds the U-shaped plate from the lower part and the rear part of the U-shaped plate;

the scrap plate is positioned above the bottom rear plate, below the U-shaped plate and adjacent to the cavity;

the first heat insulation plate and the second heat insulation plate are connected with the third side wall and the fourth side wall.

8. The oven of claim 7, wherein said first heat dissipating vent is formed in said crumb plate.

9. The oven of claim 7, wherein the first and second louvers are arranged at intervals on the third and/or fourth side walls.

10. A toaster according to claim 9, wherein said second louvers in said U-shaped plate have an area greater than an area of said first louvers.

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