WO2018076179A1

WO2018076179A1 - Radiation type electric baking oven

Info

Publication number: WO2018076179A1
Application number: PCT/CN2016/103254
Authority: WO
Inventors: 何顺伟; 申晓星; 洪志刚
Original assignee: 佛山市伟仕达电器实业有限公司
Priority date: 2016-10-25
Filing date: 2016-10-25
Publication date: 2018-05-03

Abstract

Disclose is a radiation type electric baking oven (9), which comprises a oven body (1), a heat generating element (2a-2d) arranged in the oven body (1), and a grill (6) horizontally arranged in the oven body (1). The heat generating element (2a-2d) are disposed at two side walls inside the oven body (1). The heat generating element (2a-2d) comprises a heat generating tube (3) and a reflector (4). The heat generating tube (3) is a heat radiation tube in which rays of the heat-generating tube (3) directly radiated to a central portion of the grill (6) is weaker than that directly radiated to an outer portion of the grill (6). Reflected parallel rays generated by the heat generating tube (3) projected onto the reflector (4) are irradiated on the central portion of the grill (6), so that the central portion and the outer portion of the grill (6) are heated uniformly. The radiation type electric baking oven has a baking effect equivalent to or better than traditional electric baking ovens, does not produce fumes, and is very easy to clean.

Description

Radiant baking oven

Technical field

This invention relates to household electric ovens, and more particularly to a radiant baking oven.

Background technique

The electric oven is a traditional household appliance and a must-have household appliance in the mass home. It can bake countless kinds of delicious dishes. However, the traditional electric oven places the heating element in the oven's box and is located in the baking food. In the lower position, this design will cause the fat of the baked food to drip onto the heating element, which may cause harmful substances such as oil smoke. Moreover, the arrangement and configuration of the heating element in the electric oven makes cleaning of the inside of the electric oven very inconvenient.

Summary of the invention

The object of the present invention is to provide a radiant baking electric oven for the deficiencies of the conventional electric oven technology, so that the grease of the baked food does not drip onto the heating body, and the baking effect is equivalent or even better than the conventional electric oven.

To achieve the above object, the present invention adopts the following technical solutions:

A radiant baking electric oven includes a box body, a heat generating body disposed in the box body, and a grill horizontally disposed in the box body, the heat generating body being disposed on both sides of the inside of the box body a heat generating body comprising a heat pipe and a reflector, wherein the heat pipe is a heat pipe, wherein the heat pipe directly radiates to a central portion of the grill is weaker than the heat pipe directly radiates to the heat pipe A ray of an outer portion of the grill, the reflected parallel rays generated by the heat pipe projected onto the reflector are irradiated on a central portion of the grill to uniformly heat the central portion and the outer portion of the grill.

Further, the reflector is configured such that the range of radiation of the reflected parallel rays on the grill is the middle 1/3 region of the grill that is equally divided according to the length.

Further, the position and/or angle of the reflector is configured to adjust to increase or decrease the range of radiation of the reflected parallel rays on the grill.

Further, an axial direction of the heat pipe is parallel to a lateral direction of the grill, and the reflector is a concave body disposed outside the heat pipe in parallel with an axial direction of the heat pipe, and the heat pipe is located Within the cavity of the concave body, preferably the mouth of the concave body and the interior of the casing The side walls are flush.

Further, the mouth of the reflector is provided with a high temperature resistant protective cover. Preferably, the protective cover is tempered glass, quartz glass or metal mesh.

Further, the cross section of the reflector is parabolic, the vertex of the parabola is away from the grill, the mouth of the parabola is close to the grill, and the axis of the heat pipe is in the parabola Focus on.

Further, the reflector cover is provided with an assembly slide for disassembling and mounting the protective cover.

Further, a heat insulating layer is disposed outside the reflector.

Further, the heat pipe is a quartz tube, a halogen tube or a carbon tube.

Further, the box body is a six-sided flat plate structure, including a top plate, a bottom plate, a left side plate, a right side plate, a front plate and a rear plate, the front plate is an openable and closable structure, and the heating body is arranged a first heat generating body at an upper end of the left side plate, a second heat generating body disposed at a lower end of the left side plate, a third heat generating body disposed at an upper end of the right side plate, and a A fourth heat generating body at a lower end of the right side panel, preferably, the front panel has a transparent window.

Advantageous effects of the present invention include:

According to the radiant baking electric oven of the present invention, the heat generating body is disposed at both side walls of the inside of the casing, so that it is possible to prevent the grease of the baked food from dripping onto the heat generating body without generating soot, which is very convenient. clean. Meanwhile, since the heating element includes a heat generating tube and a reflector, the reflected parallel rays generated by the heat radiation of the heat generating tube are irradiated to the middle portion of the grill, thereby compensating for the middle portion of the grill because The two sides of the grill separate the heating element from the distance and the radiation is weak, which enhances the radiation received by the middle part of the grill, so that the middle part and the outer part of the grill are evenly heated. Therefore, the baking effect of the radiant baking oven of the present invention is equivalent or superior to that of the conventional electric oven.

In a preferred embodiment, an axial direction of the heat pipe is parallel to a lateral direction of the grill, and the reflector is a concave body disposed outside the heat pipe in parallel with an axial direction of the heat pipe, The heat pipe is located in the concave cavity of the concave body, and the mouth of the concave body is flush with the inner side wall of the box body, and the design not only can obtain the ideal reflection effect, but also does not protrude from the box body. The "concealed" heating element on the inner wall smoothes the inner surface of the electric oven, making the interior of the electric oven easier to clean.

The features and technical advantages of the present invention are set forth in the <RTIgt; Other features and advantages of the invention will be described below.

DRAWINGS

1 is a perspective view of a radiant baking oven according to an embodiment of the present invention;

2A is a schematic view showing the reflection principle of a reflector of a radiant baking oven according to an embodiment of the present invention;

2B is an enlarged cross-sectional view showing a structure F of a heat generating body of a radiant baking electric oven according to an embodiment of the present invention;

3 is a schematic view showing the principle of direct heat pipe and reflection of a tank wall of a radiant baking electric oven according to an embodiment of the present invention;

4 is a schematic view showing the principle of direct radiation, box wall reflection and reflector reflection of a radiant baking oven according to an embodiment of the present invention;

5A is a perspective view of a heat generating body of a radiant baking electric oven at an upper end of a left side plate according to an embodiment of the present invention, wherein the protective cover is a metal mesh;

5B is a perspective view of a heat generating body of a radiant baking electric oven at an upper end of a left side plate according to another embodiment of the present invention, wherein the protective cover is tempered glass or quartz glass;

5C is a perspective view of a heat generating body of a radiant baking electric oven at a lower end of a left side plate according to an embodiment of the present invention, wherein the protective cover is a metal mesh;

5D is a perspective view of a heat generating body of a radiant baking oven at a lower end of a left side plate according to another embodiment of the present invention, wherein the protective cover is tempered glass or quartz glass.

detailed description

The invention will be further described in detail below by means of embodiments with reference to the accompanying drawings. It is to be understood that the following description is only illustrative, and is not intended to limit the scope of the invention. Those skilled in the art will appreciate that the disclosed concepts and embodiments can be readily utilized as a basis for modifying or designing other structures to accomplish the same objectives of the invention. Those skilled in the art should also appreciate that such equivalent constructions do not depart from the spirit and scope of the invention. The novel features, the structure and operation of the invention, together with the It is to be understood, however, that the description of the invention is not intended to limit the invention.

1 is a perspective view of a radiant baking electric oven according to an embodiment of the present invention. Referring to FIGS. 1 to 5D, a radiant baking electric oven 9 includes a casing 1 and a heating element disposed in the casing 1. 2a-2d and a grill 6 horizontally disposed in the casing 1, the heating elements 2a-2d are provided Placed on the two side walls of the inside of the casing 1, the heating elements 2a-2d include a heat pipe 3 and a reflector 4, and the heat pipe 3 is a heat radiant tube, wherein the heat pipe 3 is directly radiated to the The rays of the central portion of the grill 6 are weaker than the rays radiated directly from the heat pipe 3 to the outer portion of the grill 6, and the parallel rays emitted by the heat pipe 3 to the reflector 4 are irradiated. The central portion of the grill 6 is such that the central portion and the outer portion of the grill 6 are evenly heated. Depending on the position of the heating elements 2a-2d on the side walls, corresponding reflected parallel rays are respectively projected obliquely upward or obliquely downward to the central portion of the grill 6.

2A to FIG. 4, FIG. 2A is a schematic view showing the reflection principle of the reflector of the radiant baking oven according to an embodiment of the present invention, and FIG. 2B is a structural position F of the heating body of the radiant baking oven according to an embodiment of the invention. FIG. 3 is a schematic view showing the principle of direct heating of the heating tube and the reflection of the wall of the box body of the radiant baking electric oven according to an embodiment of the present invention, and FIG. 4 is a direct view of the radiant baking electric oven according to an embodiment of the present invention. Schematic diagram of wall reflection and reflector reflection principle. According to the radiant baking electric oven 9 of the present invention, the radiation of the baked food actually comprises three parts: 1) the radiation 3B directly radiated to the grill 6 by the heat generating tube 3; 2) the first heat radiating from the heat generating tube 3 to the reflection On the cover 4, the radiation 3A reflected by the reflector 4 to the grill 6 is 3; 3) is radiated to the inner wall of the casing 1 by the heat pipe 3, and then reflected or radiated (the inner wall of the casing 1 is heated by radiation) This produces further radiation) to the ray 3C of the grill 6. Since the heat generating bodies 2a to 2d are disposed at both side walls of the inside of the casing 1, it is possible to prevent the grease of the baked food from dripping onto the heat generating bodies 2a to 2d without generating soot, which is very convenient for cleaning. Meanwhile, since the heat generating body 2a-2d includes the heat generating tube 3 and the reflecting cover 4, the reflected parallel rays generated by the heat radiation of the heat generating tube 3 to the reflecting cover 4 are arranged to be irradiated on the central portion of the grill 6, thereby making up for The central portion of the grill 6 is weakened by radiation due to the fact that the heating elements 2a-2d are separated from each other with respect to the two sides of the grill 6, thereby enhancing the radiation received by the central portion of the grill 6, so that the grill The middle portion and the outer portion of 6 are uniformly heated. Therefore, the baking effect of the radiant baking electric oven 9 of the present invention is equivalent to or superior to that of the conventional electric oven 9.

In a preferred embodiment, the reflector 4 is configured such that the range of radiation of the reflected parallel rays on the grill 6 is the middle 1/3 of the grill 6 that is equally divided according to the length, ie, The area between the

boundaries

61, 62.

In a preferred embodiment, the position and/or angle a of the reflector 4 is configured to adjust to increase or decrease the range of radiation of the reflected parallel rays on the grill 6.

In a preferred embodiment, the axial direction of the heat pipe 3 is parallel to the lateral direction of the grill 6, and the reflector 4 is disposed in parallel with the heat pipe 3 in the axial direction of the heat pipe 3. a concave body, the heat pipe 3 is located in a cavity of the concave body, more preferably, the concave body The mouth is flush with the side wall of the inside of the case 1. This design not only achieves an ideal reflection effect, but also the "hidden" heating elements 2a-2d make the inside of the electric oven 9 a smooth and flush cavity, which is more convenient for cleaning. Further, according to the position of the heat generating bodies 2a-2d on the side walls, the curvature of the concave body of the respective reflecting cover 4 and the opening angle are symmetrically arranged such that the reflected rays are projected obliquely upward or obliquely downward to the central portion of the grill 6, respectively. .

In a preferred embodiment, the mouth of the reflector 4 is provided with a high temperature resistant protective cover 5. Preferably, the protective cover 5 is a tempered glass, a quartz glass or a metal mesh.

As shown in Figures 5A-5D, in a preferred embodiment, the cross section of the reflector 4 is in the shape of a parabola 41, the apex 43 of the parabola being remote from the grill 6, the parabolic mouth 42 Close to the grill 6, preferably flush with the side walls of the interior of the casing 1, the axis of the heat pipe 3 being at the focus 40 of the parabola 41.

As shown in FIGS. 5A-5D, in a preferred embodiment, the reflector 4 is provided with a mounting ramp 45 for removing and mounting the protective cover 5.

As shown in FIGS. 5A-5D, in a preferred embodiment, the reflector 4 is provided with a heat insulating layer 44 on the outside.

5A-5D, FIG. 5A is a perspective view of a heat generating body at the upper end of the left side panel of the radiant baking oven according to an embodiment of the present invention, wherein the protective cover 5 is a metal mesh; FIG. 5B is a metal mesh according to the present invention. A perspective view of a heat generating body at the upper end of the left side panel of the radiant baking oven of another embodiment, wherein the protective cover 5 is tempered glass or quartz glass; and FIG. 5C is a radiant baking power according to an embodiment of the present invention. A schematic view of a heat generating body of the oven at the lower end of the left side plate, wherein the protective cover 5 is a metal mesh; and FIG. 5D is a three-dimensional heat generating body of the radiant baking electric oven at the lower end of the left side plate according to another embodiment of the present invention. Schematic diagram, wherein the protective cover 5 is tempered glass or quartz glass.

In a preferred embodiment, the heat pipe 3 is a quartz tube, a halogen tube or a carbon tube.

In a preferred embodiment, the case 1 is a six-sided flat structure including a top plate, a bottom plate, a left side plate 13, a right side plate 14, a front plate 15, and a rear plate, and the front plate 15 is openable and closable. Structure, the heat generating body 2a-2d includes a first heat generating body 2a disposed at an upper end of the left side plate 13, a second heat generating body 2b disposed at a lower end of the left side plate 13, and disposed in the The third heat generating body 2c at the upper end of the right side plate 14 and the fourth heat generating body 2d disposed at the lower end of the right side plate 14, preferably, the front plate has a transparent window.

The features, working principles and advantages of the specific embodiments of the present invention are further described below in conjunction with the accompanying drawings.

Referring to Figures 1 - 5D, a radiant baking electric oven 9 includes a casing 1, a heating element 2, a grill 6, which is a hexahedron of a flat structure, including a top plate 11, a bottom plate 12, and a left side plate 13. , The right side panel 14, the front panel 15, and the rear panel. The front panel 15 is provided with a visible transparent box door for viewing and discharging baked food. The grill 6 is slidably disposed in a horizontal position in the casing 1, and may include upper, middle, and lower layers. Preferably, the grill 6 is a horizontally extractable structure. Preferably, the number of the heating elements 2 is four, including a first heating element 2a placed at the upper end of the left side plate 13, and a second heating element 2b placed at the lower end of the left side plate 13, placed on the right side. The third heat generating body 2c at the upper end of the plate 14 and the fourth heat generating body 2d placed at the lower end of the right side plate 14. The heating element does not protrude from the inner wall of the casing, so that the inner surface of the casing 1 forms a smooth and flush surface.

Each of the heat generating bodies of the heat generating body 2 includes a heat generating tube 3, a reflection cover 4, and a protective cover 5, and the heat generating tube is a heat radiating tube. Preferably, the cross section 41 of the reflector 4 is of a parabolic type, including a parabolic focus 40, a parabola apex 43, a parabolic mouth portion 42, the parabolic mouth portion 42 and the corresponding left side plate 13 or The right side plate 14 is flush, and the parabola vertices 43 are away from the corresponding left side plate 13 or right side plate 14. The axis 30 of the heat pipe 3 (ie, the center of the cross section) is disposed at the focus 40 of the parabola 41. on. The protective cover 5 is a high temperature resistant plate, and the protective cover 5 is disposed on the parabolic mouth portion 42 for protecting the heat generating tube 3. Preferably, the protective cover 5 is flush with the corresponding left side plate 13 or right side plate 14.

The position and angle of the reflector 4 are configured such that the reflected parallel rays 3A generated by the heat pipe 3 projected onto the reflector 4 are irradiated in the middle of the grill 6, and the preferred radiation range is the grilling The shelf 6 has a length of three equal parts in the middle 1/3 area. The position and/or angle α of the reflector 4 is configured to be adjustable so that the height can be adjusted according to the actual baking requirements, as well as the height of the cabinet 1 and the height of the left side panel 13 and the right side panel 14. The position, angle α of the reflector 4 increases or decreases the range of radiation in the middle of the grill 6.

Referring to Figures 2A-4, the baking radiation comprises the following three parts:

1. The radiation tube 3 directly radiates to the ray 3B of the grill 6;

2. The heat pipe 3 is first radiated to the reflector 4 of the reflector 4 and then reflected parallel to the ray 3A of the grill 6, wherein the middle portion 61 of the length of the grill 6 is equally divided into the boundary lines 61 to 62. Between the

heat generating bodies

2a, 2b, 2c, and 2d of the heat generating tube, the radiation 3A reflected by the reflecting cover 4 is radiated, and the radiation compensates for the phenomenon that the middle portion of the grill 6 is weakened by being away from the heat generating tube 3. So that the grill 6 is uniformly baked by heat;

3. The heat pipe 3 is radiated to the case 1 first, and then reflected or generated by the case 1 to be radiated to the radiation 3C of the grill 6.

Referring to Figures 5A-5D, the reflector 4 is provided with a detachable mounting ramp 45 for periodic maintenance and cleaning of the boot 5. A heat insulating layer 44 is disposed outside the reflector 4 to maintain heat inside the casing 1 to avoid loss of heat energy.

The protective cover 5 is preferably a tempered glass, a quartz glass or a metal mesh 51 or the like, and the metal mesh 51 is particularly suitable for baking a bread slice. The heat pipe 3 is preferably a quartz tube, a halogen tube, a carbon tube or the like.

The above is a further detailed description of the present invention in combination with specific/preferred embodiments, and it is not intended that the specific embodiments of the invention are limited to the description. It will be apparent to those skilled in the art that <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; It belongs to the scope of protection of the present invention. The present invention and its advantages are described in detail above, and it is understood that various changes, substitutions and changes may be made without departing from the spirit and scope of the invention. Further, the scope of the application of the invention is not limited to the specific embodiments of the processes, machines, manufacture, compositions, methods, methods and steps described in the specification. It should be understood that further modifications may be made and the application is intended to cover any variations, applications, or adaptations of the present invention that are generally in accordance with the principles of the present invention. The basic features set forth above may be applied within the scope of the known or customary practice within the scope of the invention and the scope of the appended claims. Also, although certain preferred embodiments of the present invention have been described and illustrated in detail, the invention is not intended to be limited to such embodiments, and any such limitations are only included in the appended claims in.

Claims

A radiant baking electric oven includes a box body, a heat generating body disposed in the box body, and a grill horizontally disposed in the box body, wherein the heat generating body is disposed in the box body The heat generating body includes a heat pipe and a reflector, and the heat pipe is a heat radiant tube, wherein the heat pipe directly radiates to a central portion of the grill is weaker than the heat pipe Radiation directly radiated to the outer portion of the grill, the reflected parallel rays generated by the heat pipe projected to the reflector are irradiated on a central portion of the grill to make the middle portion and the outer side of the grill Part of the heat is even.
A radiant baking oven according to claim 1 wherein said reflector is configured such that said reflected parallel rays have a range of radiation on said grill in the middle of said grill according to length three equals 1/3 area.
The radiant baking oven of claim 1 wherein the position and/or angle of the reflector is configured to increase or decrease the range of radiation of the reflected parallel rays on the grill.
The radiant baking electric oven according to claim 1, wherein an axial direction of said heat pipe is parallel to a lateral direction of said grill, and said reflector is disposed in parallel along an axial direction of said heat pipe. a concave body on the outer side of the heat pipe, wherein the heat pipe is located in a cavity of the concave body, and preferably, the mouth of the concave body is flush with a side wall of the inside of the case.
The radiant baking oven according to claim 4, characterized in that the mouth of the reflector is provided with a high temperature resistant protective cover, preferably the protective cover is tempered glass, quartz glass or metal mesh.
The radiant baking oven according to claim 4, wherein the reflector has a parabolic shape in cross section, the apex of the parabola is away from the grill, and the mouth of the parabola is close to the grill The axis of the heat pipe is at the focus of the parabola.
The radiant baking electric oven according to any one of claims 1 to 6, wherein the reflecting cover is provided with an assembly chute for detaching and mounting the protective cover.
The radiant baking oven according to any one of claims 1 to 7, wherein a heat insulating layer is provided outside the reflector.
The radiant baking electric oven according to any one of claims 1 to 8, wherein the heat generating tube is a quartz tube, a halogen tube or a carbon tube.
A radiant baking oven according to any one of claims 1 to 9, characterized in that The box body is a six-sided flat plate structure, including a top plate, a bottom plate, a left side plate, a right side plate, a front plate and a rear plate, wherein the front plate is an openable and closable structure, and the heating body includes an arrangement a first heat generating body at an upper end of the left side plate, a second heat generating body disposed at a lower end of the left side plate, a third heat generating body disposed at an upper end of the right side plate, and a right heat generating body disposed at the upper end A fourth heat generating body at the lower end of the side panel, preferably, the front panel has a transparent window.