WO2010135967A1

WO2010135967A1 - Operable door for electric oven

Info

Publication number: WO2010135967A1
Application number: PCT/CN2010/073033
Authority: WO
Inventors: 黄朝龙
Original assignee: Huang Chaolong
Priority date: 2009-05-25
Filing date: 2010-05-21
Publication date: 2010-12-02
Also published as: CN101561155A; CN101561155B

Abstract

An operable door for an electric oven is provided, and the door includes holding parts (1,2) fixedly connected with two opposite sides of door plates (4). The first holding part (1) is rotatably connected with a box body (100) of the electric oven by a rotating shaft (5). The holding parts (1,2) are formed as sectional material, which has cross sections of the same shape. The first holding part (1) is provided with a shaft hole (10) and at least two first holding elements (11, 12, 13), the second holding part (2) is provided with at least two second holding elements (21, 22, 23), and the shaft hole (10) is matched with the rotating shaft (5). The first holding elements (11, 12, 13) and the second holding elements (21, 22, 23) are arranged corresponding to each other for holding the door plates with the number being equal to the number of the holding elements. A clearance is formed between the adjacent door plates (4).

Description

Opening and closing door of electric oven

Technical field

The invention relates to an opening and closing door of an electric oven.

Background technique

An electric oven is a kitchen appliance that bakes book foods by converting electrical energy into heat. The main structure of the conventional domestic electric oven includes a casing enclosing a heating chamber, an opening and closing door for connecting the heating chamber to the outside of the heated food, an heating member disposed in the heating chamber, and a heating member. Control and adjustment components for control and regulation. Household electric ovens with two or more heating chambers have also appeared. In the existing electric oven, when the baked food is heated, the temperature in the heating chamber can reach about 240 ° C under normal room temperature, and the outer surface of the opening and closing door which is most easily accessible to consumers (also called "cold surface" The temperature of ") can exceed 100 °C, the highest value can even exceed 150 °C, there is a safety hazard for burns, and the EU is preparing to impose mandatory requirements on this safety issue. However, since the opening and closing doors are generally made of single-layer glass, it is technically difficult to implement to reduce the temperature of the cold surface, or has not been implemented because of the high cost of the solution. Therefore, the existing electric oven has a defect that the surface temperature is too high, and there is a large safety hazard, which cannot meet the new safety standards to be implemented in the future.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an opening and closing door of an electric oven which has good heat insulation effect, low cold surface temperature, convenient opening, safety, quick installation, simple and reliable. The technical solution adopted by the present invention is: The present invention includes a first clamping member, a second clamping member, and a handle Description

The first clamping member and the second clamping member are respectively fixedly connected to two opposite sides of the door panel, and the first clamping member passes the rotating shaft and the electric power The first clamping member and the second clamping member are each a profile having the same cross-sectional shape, and the first clamping member is provided with a shaft hole and at least two first portions. a clamping portion, the second clamping member is provided with at least two second clamping portions, the shaft hole is adapted to the rotating shaft, and the first clamping portion is opposite to the second clamping portion The door panels are disposed and fixed in accordance with the number thereof, and a gap is left between the adjacent door panels.

The first clamping portion of the innermost side of the first clamping member is disposed opposite to the other of the first clamping portions.

The shaft hole is located at a corresponding position of the innermost first clamping portion.

The openings of the first clamping portion and the second clamping portion are each provided with a certain inclination, and the first clamping portion and the second clamping portion clamp the door panel by a slope.

The gap between the adjacent door panels communicates with the outside.

The second clamping member has two ends respectively located at one side of one side of the door panel sandwiched therebetween, and between the adjacent two of the second clamping members The gap communicates with the outside world.

The handle is located between the two second clamping members, and the handle is clamped to the side of the outermost door panel. Alternatively, the handle is fixedly coupled to the two of the second clamping members.

The door panel is made of glass.

The door panel is a flat plate or a curved plate. The beneficial effects of the present invention are: Since the first clamping member and the second clamping member are profiles having the same cross-sectional shape, the first clamping member is provided with a shaft hole and at least two a first clamping portion, the second clamping member is provided with at least two second clamping portions, the shaft hole is adapted to the rotating shaft, the first clamping portion and the second clamping portion The door panel is oppositely disposed and fixed to the door panel, and a gap is left between the adjacent door panels. The present invention adopts at least two layers of the door panel for multi-stage heat insulation treatment, which is beneficial to lowering the outermost layer. The surface temperature of the door panel and the gap between the adjacent door panels are also advantageous for further reducing the temperature of the cold surface, preventing burns and improving safety. Instruction manual

The door panel is clamped and fixed by the profile and cooperates with the rotating shaft, so that the installation of the entire opening and closing door is fast, simple and reliable, and the multi-layer door panel can be quickly installed, the production efficiency is high, and the opening and closing door can be ensured at the same time. Normally opened and closed, easy to use, so the invention has good heat insulation effect, low cold surface temperature, convenient opening, safety, quick installation, simple and reliable;

Due to the relative misalignment between the first clamping portion of the innermost side of the first clamping member and the other first clamping portion of the first clamping member, the profile position of the first clamping portion is The utility model has the advantages of small width, avoiding the disadvantage that the thickness of the opening and closing door is increased due to the use of the plurality of the door panels, and the possibility of interference with the box body, and at the same time, the maximum opening angle of the opening and closing door is not bound by the box as much as possible, and the solution is solved. In the case that the opening and closing door is embedded in the box body, the opening angle of the opening and closing door is limited due to the use of the multi-layer door panel, so the invention is free to open, has a large opening angle, and is convenient for picking up and placing food;

Since the shaft hole of the present invention is located at the corresponding position of the innermost first clamping portion, the rotation radius of the shaft hole portion is minimized, and the disadvantage of interference with the box body due to excessive rotation radius is avoided. Limiting the opening angle of the opening and closing door, the invention is convenient to open, has a large opening angle, and is convenient for picking up and placing food;

Since the openings of the first clamping portion and the second clamping portion are all provided with a certain inclination, the first clamping portion and the second clamping portion rely on the inclination to the door panel. The invention utilizes the elasticity of the profile itself to clamp the door panel by the inclination, and can be fixed without screws, so the door panel assembly of the invention is fast and reliable, and has high efficiency;

Since the gap between the adjacent door panels of the present invention communicates with the outside, the hot air in each gap can automatically flow to the outside according to the change of its own density, thereby taking away the heat, further reducing the temperature of the cold surface, so The invention has good heat dissipation effect and low cold surface temperature;

Since the second clamping member of the present invention has two ends respectively located at one side of one side of the door panel sandwiched therebetween, the adjacent one of the two second clamping members The gap between the two is communicated with the outside, further enhancing the air flow in the gap between the adjacent door panels, and is more advantageous for taking away heat and lowering the temperature, so that the heat dissipation effect of the invention is good and the cold surface temperature is low. Instruction manual

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic view showing the overall structure of an electric oven according to a first embodiment of the present invention;

2 is a schematic view showing the overall structure of an electric oven according to a second embodiment of the present invention;

Figure 3 is a schematic cross-sectional view showing the opening and closing door of the first embodiment of the present invention and the lower opening and closing door of the second embodiment;

4 is a schematic cross-sectional structural view showing the installation of the handle according to the first embodiment of the present invention;

Figure 5 is a cross-sectional structural view showing the installation of the handle of the second embodiment of the present invention;

Figure 6 is a cross-sectional structural view showing the opening and closing door of the first embodiment of the present invention and the first clamping member of the lower opening and closing door of the second embodiment;

Figure 7 is a cross-sectional structural view showing a second holding member according to the first embodiment and the second embodiment of the present invention; Figure 8 is a cross-sectional structural view showing the first holding member of the upper opening and closing door according to the second embodiment of the present invention; FIG. 10 is a cross-sectional structural view of the opening and closing door of the third embodiment of the present invention; FIG.

Figure 11 is a schematic cross-sectional view showing the first holding member of the third embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1: As shown in FIG. 1, FIG. 3, FIG. 4, FIG. 6, FIG. 7, the electric oven of this embodiment has a heating chamber, which is the most common electric oven, and the electric oven The opening and closing door comprises a first clamping member 1, a second clamping member 2, a handle 3, a door panel 4, a rotating shaft 5, and the first clamping member 1, the second clamping member 2 and the door panel 4, respectively Two opposite upper and lower sides are fixedly connected, the first clamping member 1 is located on the lower side of the door panel 4, and the second clamping member 2 is located on the upper side of the door panel 4, the first The clamping member 1 is rotatably connected to the casing 100 of the electric oven through the rotating shaft 5, and the rotating shaft 5 is horizontally placed horizontally. Therefore, the opening and closing door of the embodiment is in the form of opening up and down, and the first clamping member 1 is The second clamping member 2 is a stainless steel profile having the same cross-sectional shape, and of course, aluminum can also be used. Other profiles, such as profiles, the first clamping member 1 is provided with a shaft hole 10 and three first clamping portions 11, 12, 13, the second clamping member 2 is provided with three second clamping portions 21, 22, 23, the shaft hole 10 is matched with the rotating shaft 5, and the first clamping portions 11, 12, 13 are opposite to the second clamping portions 21, 22, 23 and will be consistent with the number thereof The three door panels 4 are clamped and fixed, the door panel 4 is made of tempered glass, and the outermost door panel 4 is a curved panel, which improves the appearance, increases the heat reflection in the heating chamber, and reduces the heat loss. The other two of the door panels 4 are flat plates, and a gap is left between the adjacent door panels 4, the first clamping portion 11 of the innermost side of the first clamping member 1 and the other two The first clamping portions 12, 13 are relatively dislocated, so that the profile position width of the first clamping portion 11 is small, and the thickness of the opening and closing door is increased due to the use of the plurality of the door panels 4. The possibility of interference with the cabinet 100 may cause the maximum opening angle of the opening and closing door to be unaffected by the cabinet 100. In the case that the opening and closing door is embedded in the box, since the opening angle of the opening and closing door is limited due to the use of the multi-layer door panel, the opening angle is limited, and the opening angle is large, and the food is conveniently taken and taken. The first clamping portion 13 of the outermost side of the first clamping member 1 is disposed opposite to the first one of the first clamping portions 12, such that the first clamping is exposed. The cold surface area of the member 1 is relatively small, avoiding the disadvantage of not meeting the safety standard caused by the large area of the first holding member 1 which is higher than the temperature of the door panel 4, and the shaft hole 10 is located at the innermost side. The corresponding position of the first clamping portion 11 minimizes the radius of rotation of the portion of the shaft hole 10, avoiding the disadvantage of interference with the casing 100 due to excessive rotation radius, and maximizing the opening angle of the opening and closing door. The opening is also convenient, the opening angle is large, and the food is conveniently taken. The openings of the first clamping portions 11, 12, 13 and the second clamping portions 21, 22, 23 are all provided with a certain inclination. The first clamping portion 11, 12 13. The second clamping portion 21, 22, 23 clamps the door panel 4 by the inclination. The invention utilizes the elasticity of the profile itself to clamp the door panel 4 by the inclination, and can be fixed without screws. The door panel 4 is assembled quickly and reliably, and the efficiency is high. The gap between the adjacent door panels 4 communicates with the outside, and the second clamping member 2 has two and respectively located on the door panel 4 held by the door panel 4 The two ends of one side, the gap between the adjacent two of the second clamping members 2 is communicated with the outside, and the hot air in each gap can be Description

Automatically flowing to the outside by the change of its own density, thereby taking away the heat, enhancing the air flow in the gap between the adjacent door panels, which is more conducive to taking away heat, further reducing the temperature of the cold surface, so that heat dissipation The effect is good, the handle 3 is located between the two second clamping members 2, and the handle 3 is clamped to the side of the outermost door panel 4. It has been tested that the temperature of the outer surface (also referred to as "cold surface") of the opening and closing door of the present embodiment can be lower than 100 ° C in the case of the indoor temperature of 240 ° C in the heating chamber at room temperature, which is reduced. The safety hazards of burned people are easy to reach new safety standards that may be implemented in the future. Embodiment 2: As shown in FIG. 2, FIG. 3, and FIG. 5 to FIG. 9, the difference between this embodiment and the first embodiment is that: the electric oven of the embodiment has two upper and lower heating chambers, and thus has two activations. Closely, in addition, the handle 3 is a cross bar and is fixedly connected to the two second clamping members 2, and the first outermost one of the first clamping members 1 of the upper opening and closing door There is no relative misalignment between the clamping portion 13 and one of the first clamping portions 12 in the middle, which is more advantageous for avoiding the box in the middle of the two heating chambers, so that the upper and lower opening and closing doors are not subjected to the box. The interference of the body 100 is opened freely, and the structure of the lower opening and closing door is the same as that of the first embodiment. The remaining features of this embodiment are the same as those of the first embodiment. Embodiment 3: As shown in FIG. 10 and FIG. 11 , the difference between the embodiment and the first embodiment is that: the rotating shaft 5 of the embodiment is vertically and vertically placed, so that the opening and closing door of the embodiment is a horizontal direction. In the open form, the outermost and innermost side panels 4 are all curved plates, and the middle door panel 4 is a flat plate, and the cross-sectional shape of the first clamping member 1 and the second clamping member 2 are also Different from the first embodiment, the first clamping member 1 and the second clamping member 2 of the embodiment have a symmetrical cross-sectional shape, and each of the door panels 4 protrudes from the outer side of the casing 100. The three-dimensional sense is more visual impact and beautiful in appearance. The remaining features of this embodiment are the same as those of the first embodiment. Instruction manual

Of course, the number of the door panels 4 of the present invention is not limited to that described in the embodiment, and the more the number of the door panels 4, the better the heat insulation effect; the first clamping member 1 and the second clamping member 2 The cross-sectional shape can be various, and the examples are merely exemplified. The invention adopts at least two layers of the door panel 4 for multi-stage heat insulation treatment, which is beneficial to reduce the surface temperature of the outermost door panel 4, and the gap between the adjacent door panels 4 is also advantageous for further reducing the cold surface. The temperature is prevented from being burned and the safety is improved. The door panel 4 is clamped and fixed by the profile and matched with the rotating shaft, so that the installation of the entire opening and closing door is fast, simple and reliable, and the plurality of the door panels 4 can be quickly installed. The utility model has high production efficiency, can ensure the normal opening and closing of the opening and closing door, and is convenient to use. Therefore, the invention achieves the purpose of reducing the temperature of the cold surface through a relatively simple structure, overcomes the defects of the prior art, and has good heat insulation effect. The cold surface temperature is low, easy to open, safe, quick, easy and reliable to install. It is a low-cost technical solution that is conducive to popularization. The invention can be widely applied to the field of electric ovens. The various modifications and equivalents of the invention are intended to be included within the scope of the appended claims.

Claims

The invention relates to an opening and closing door of an electric oven, comprising a first clamping member (1), a second clamping member (2), a handle (3), a door panel (4), a rotating shaft (5), the first a clamping member (1), the second clamping member (2) are fixedly connected to two opposite sides of the door panel (4), respectively, the first clamping member (1) The rotating shaft (5) is rotatably connected with the casing (100) of the electric oven, characterized in that: the first clamping member (1) and the second clamping member (2) have the same cross-sectional shape. a profile, the first clamping member (1) is provided with a shaft hole (10) and at least two first clamping portions (11, 12, 13), and the second clamping member (2) is provided with at least two a second clamping portion (21, 22, 23), the shaft hole (10) is adapted to the rotating shaft (5), the first clamping portion (11, 12, 13) and the first The two clamping portions (21, 22, 23) are oppositely disposed and will be in accordance with the number of the door panels

(4) Clamping is fixed, and a gap is left between the adjacent door panels (4). The opening and closing door of the electric oven according to claim 1, characterized in that: the first clamping portion (11) of the innermost side of the first clamping member (1) and the other first The clamping portions (12, 13) are arranged in a relatively offset position. The opening and closing door of the electric oven according to claim 2, wherein the shaft hole (10) is located at a corresponding position of the innermost first holding portion (11). The opening and closing door of the electric oven according to claim 1, wherein: the first clamping portion

(11, 12, 13), the openings of the second clamping portions (21, 22, 23) are each provided with a certain inclination, the first clamping portion (11, 12, 13), the first The two clamping portions (21, 22, 23) clamp the door panel (4) by the inclination. The opening and closing door of the electric oven according to claim 1, characterized in that the gap between the adjacent door panels (4) communicates with the outside. The opening and closing door of the electric oven according to claim 1, characterized in that: the second clamping member (2) has two and is respectively located on one side of the door panel (4) to which it is clamped At both ends, the gap between the adjacent door panels (4) between the two second clamping members (2) communicates with the outside. Claim

The opening and closing door of the electric oven according to claim 6, wherein: the handle (3) is located between the two second clamping members (2), and the handle (3) is clamped and fixed On the side of the outermost door panel (4). The opening and closing door of the electric oven according to claim 6, wherein the handle (3) is fixedly coupled to the two of the second holding members (2). The opening and closing door of the electric oven according to any one of claims 1 to 8, characterized in that the door panel (4) is made of glass. The opening and closing door of the electric oven according to any one of claims 1 to 8, characterized in that the door panel (4) is a flat plate or a curved plate.