Foldable portable microwave oven

Abstract

The invention discloses a foldable portable microwave oven and relates to the field of food heating electric appliances. The box body forming the microwave oven can be deformed or folded to reduce the storage volume. The box body is made of a flexible conductor sheet or a rigid conductor sheet, meanwhile, a deformable and foldable structure is adopted, and the structure comprises a flexible folding structure, a rigid folding structure, a nested drawing type structure, a quick disassembly and assembly type structure and a mixed structure of two or more of the flexible folding structure, the rigid folding structure, the nested drawing type structure and the quick disassembly and assembly type structure. When the portable microwave oven is not used for heating, the volume is obviously reduced through folding deformation, so that the portable microwave oven can be conveniently carried during traveling and vehicle-mounted carrying, and the storage volume in a kitchen is also favorably reduced.

Description

Technical Field

[0001] The present invention relates to a foldable and portable microwave oven, belonging to the field of food heating appliances. The cabinet of this microwave oven can be folded to reduce its volume, making it convenient for carrying and storage; when used for heating, it can be unfolded and restored to the normal use volume. The present invention can be widely applied to situations such as in-vehicle use and travel where external portability is required, and can also be used in the kitchen to save storage space. Background Art

[0002] Microwave ovens are widely used to heat substances such as food and water that can absorb microwaves. Existing microwave ovens, in order to achieve good shielding effects, all use metal plates to make the outer shell, and the entire cabinet has a fixed shape and cannot be deformed. However, the existing microwave ovens generally have a large volume, occupying a large space when placed in the kitchen, and are also inconvenient to carry.

[0003] Regarding the above problems, if the volume of the microwave oven cabinet can be folded and reduced when the microwave oven is not in use, a certain amount of kitchen space can be saved, and it is also convenient to carry during travel. Summary of the Invention

[0004] The object of the present invention is to provide a foldable and portable microwave oven. This foldable microwave oven can conveniently change its shape, be folded and reduce its volume during travel for easy carrying, and can be unfolded and restored to the volume and shape for normal heating state when heating food to accommodate the items to be heated.

[0005] The external shapes of existing microwave ovens are generally rectangular parallelepipeds. With reference to the accompanying drawings, it is described in detail as follows: As Figure 1 shown, its structure is mainly divided into two major volume parts. A very small and usually flat volume space mainly houses electronic components or assemblies such as a magnetron that generates microwaves, a magnetron power supply, and a control circuit board. This part can be called the "microwave source cabinet 1", and its position is usually on one side of the rectangular parallelepiped of the whole machine; while another very large volume space is a hollow cabinet for accommodating the food to be heated, which can be called this part the "heating cabinet 2". The microwave oven door is usually designed to open on a certain end face of the heating cabinet. The outer shells of these two parts of the cabinet are made of metal conductor materials, so microwaves can be shielded within the cabinet. The microwave source cabinet 1 and the heating cabinet 2 are tightly connected and separated by a thin metal plate, but a hole that can transmit microwaves needs to be opened on the metal partition to allow the microwaves emitted by the magnetron to directly enter or enter the heating cabinet through a waveguide composed of metal sheets.

[0006] A foldable and portable microwave oven, characterized in that: As Figure 1As shown in the figure, the microwave source box body 1 and the heating box body 2 of the microwave oven adopt a structure that can change its shape to reduce the volume. The plate material that makes up the box body must be a conductive material, which can be a flexible conductive thin sheet 4 or a rigid conductive thin sheet 4. And the thin sheet can be without holes or with holes, but the diameter of the holes should be in the range of 0.001 to 2 millimeters. The flexible conductive thin sheet can be a flexible conductive fabric or a flexible conductive film; it can be a single-layer conductive fabric or film, or a conductive multi-layer composite fabric or multi-layer composite film. The conductive fabric refers to a conductive non-woven fabric, woven fabric or woven mesh made of fibers or filaments of conductive materials such as carbon fibers and metal wires. The diameter of the mesh holes on the fabric should be in the range of 0.001 to 2 millimeters. The conductive film can be a flexible pure conductor material film made of a conductor, or a flexible composite conductive film formed by plating a conductor on a flexible plastic, such as a plastic aluminized film. There can also be small holes on the flexible conductive film, and the diameter of the small holes should be in the range of 0.001 to 2 millimeters. The rigid conductive thin sheet 4 is the thin plate made of the rigid conductive material commonly used in existing microwave ovens. The rigid conductive thin sheet 4 can be a thin plate without pores, or with small holes or slits, and the diameter of the small holes or the width of the slits should be in the range of 0.001 to 2 millimeters; among them, since there are electronic components such as a magnetron, a magnetron power supply and a control circuit board inside the microwave source box body 1, although the microwave source box body 1 can also reduce the volume by deformation or folding, the degree of reduction is limited. Therefore, the overall volume reduction of the microwave oven is mainly achieved by the folding and shrinking of the heating box body 2.

[0007] Further, the folding and deformation of the box body (including the microwave source box body 1 and the heating box body 2) can be achieved through four methods and a mixed method of two or more of these four methods. First, the various folding methods will be mainly described below with the heating box body 2 as the object in combination with the attached drawings: One, the box body is made of a bendable flexible conductive material and adopts a foldable structure (such as Figure 2 ); Two, the box body is made of a plate of rigid conductive material, but the connection between the plates is in the form of movable hinges (such as Figure 3 ); Three, the box body is made of a plate of rigid conductive material, but the whole box body is divided into multiple sections, and the connection between the sections is in the form of nested pulling (such as Figure 44) The box body is made of plates of rigid conductor material, but the connection between the plates is in the form of quick disassembly and assembly connection. The quick disassembly and assembly connection form refers to a connection form that can conveniently and quickly disassemble different connected plates into loose parts and can also be conveniently reassembled together again. For example, the connection between each rigid conductor sheet is in a form that can be quickly disassembled by hand, such as conventional easily disassembled buckles or manually tightened screws, so that the box body can be quickly disassembled into sheet-like loose parts as needed, and at the same time, the sheet-like loose parts can be quickly reassembled into the box body 2 again through conventional quick connection forms such as easily disassembled buckles or manually retracted screws; 5) The box body can also be realized by combining two or more of the above four methods.

[0008] Furthermore, the microwave source box body 1 needs to be fixed on a certain end face of the heating box body 2 and form a tight connection with the heating box body 2. The microwave source box body 1 can adopt a foldable outer shell in one of the above ways, or it can adopt a conventional rigid fixed shape outer shell without a foldable outer shell, because the volume of the microwave source box body 1 accounts for a small proportion of the total volume and its shrinkable degree is also very limited. The gaps at the joints between the conductor plates forming the box body and the pore diameters on the perforated conductor plates should be in the range of 0.001 to 2 millimeters.

[0009] Furthermore, the microwave oven door can be set on the end face of the box body, or the entire microwave source box body 1 can be used as the oven door.

[0010] The principle of the present invention is that a conductor can reflect microwaves, and the box body composed of conductor plates can enclose the microwaves inside the box body. As long as the gaps at the joints between the conductors forming the box body and the pores on the conductors are in the range of 0.001 to 2 millimeters, the microwave leakage caused by the gaps and pores is very limited. Therefore, the outer shell of the microwave oven of the present invention still adopts a conductor material, but the box body outer shell, especially the conductor plates on each surface of the heating box body and between the conductor plates, can change angles and shapes, so that folding can be realized and the volume of the box body can be reduced to facilitate carrying; when used for heating, it can be unfolded to restore to the normal heating use shape, and as long as the gaps between the component plate surfaces are less than 2 millimeters, the microwaves can be shielded.

[0011] The advantages of the present invention are as follows: adopting a foldable box body structure can significantly reduce the storage volume of the microwave oven, facilitate carrying, and can also reduce the storage space of the microwave oven in the kitchen, facilitating the optimal design of the kitchen space. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the main volume composition of the existing microwave oven.

[0013] Figure 1 In the figure, 1 is the microwave source box body, and 2 is the heating box body.

[0014] Figure 2 It is a schematic diagram of a folding structure made of a bendable flexible conductor material.

[0015] Figure 2 In it, 1 is a microwave source box body, 2 is a heating box body, 3 is a folding edge made of flexible material, 4 is a conductor thin sheet, and 5 is the end face of the folding box body.

[0016] Figure 3 It is a schematic diagram of a folding structure in which a rigid conductor plate is connected in the form of movable hinges.

[0017] Figure 3 In it, 1 is a microwave source box body, 4 is a conductor thin sheet, 5 is the end face of the folding box body, and 6 is a movable hinge.

[0018] Figure 4 It is a schematic diagram of a folding structure in which a rigid conductor plate is connected in a nested and pull-out form.

[0019] Figure 4 In it, 1 is a microwave source box body, 4 is a conductor thin sheet, 5 is the end face of the folding box body, and 7 is the connection gap of the nested structure. Specific implementation mode

[0020] The present invention will be further described below in conjunction with the drawings and embodiments, but the present invention is not limited to the following embodiments.

[0021] The embodiments are mainly based on the above four and their mixed folding methods of the heating box body, specifically as follows:

[0022] Embodiment 1 The microwave source box body 1 of the microwave oven adopts a conventional fixed shape structure, and the heating box body 2 adopts a bendable flexible conductor thin sheet 4 (such as Figure 2 ). The flexible conductor thin sheet 4 adopts a single-layer stainless steel wire woven cloth, and the pore diameter on the woven cloth is 0.001 mm. The end face 5 of the foldable heating box body 2 adopts a rigid fixed shape, and the material adopts the same conventional rigid conductor thin sheet as the microwave source box body 1, and the microwave oven door is arranged on the end face 5.

[0023] Embodiment 2 The microwave source box body 1 of the microwave oven adopts a conventional fixed shape structure, and the heating box body 2 of the microwave oven adopts a bendable flexible conductor thin sheet 4 (such as Figure 2 ). The flexible conductor thin sheet 4 adopts a double-layer conductive carbon fiber non-woven fabric, and the pore diameter on the non-woven fabric is 0.2 mm. The end face 5 of the foldable heating box body 2 also adopts a conductive carbon fiber non-woven fabric. The entire microwave source box body 1 serves as the microwave oven door.

[0024] Embodiment 3 The microwave source box body 1 of the microwave oven adopts a conventional fixed shape structure, and the heating box body 2 of the microwave oven adopts a bendable flexible conductor thin sheet 4 (such asFigure 2 ): The flexible conductor sheet 4 is made of a 5-layer copper wire braided mesh, and the mesh hole diameter of each layer is 2 mm. The end face 5 of the foldable heating box body 2 adopts a rigid fixed shape, and the material is the same conventional rigid conductor sheet as that of the microwave source box body 1. The microwave oven door is arranged on the end face 5.

[0025] Example 4 The outer shell of the microwave source box body 1 of the microwave oven is made of a flexible conductor sheet that can be bent and deformed, and the heating box body 2 of the microwave oven also adopts a flexible conductor sheet 4 that can be bent (such as Figure 2 ): The flexible conductor sheet 4 is made of a double-layer non-porous composite conductive film, and the composite conductive film is made of plastic aluminized. The end face 5 of the foldable heating box body 2 adopts a rigid fixed shape, and the entire end face 5 serves as the microwave oven door.

[0026] Example 5 The microwave source box body 1 of the microwave oven adopts a conventional fixed shape structure, and the heating box body 2 of the microwave oven adopts a flexible conductor sheet 4 that can be bent (such as Figure 2 ): The flexible conductor sheet 4 is made of a 6-layer porous composite conductive film, and the porous composite conductive film is made of plastic silver-plated, and the diameter of the holes is 1.0 mm. The end face 5 of the foldable heating box body 2 also adopts the same flexible conductor sheet as above, and the microwave oven door is arranged on the end face 5.

[0027] Example 6 The microwave source box body 1 of the microwave oven adopts a conventional fixed shape structure, and the heating box body 2 of the microwave oven is composed of rigid conductor sheets 4 without pores. The rigid conductor sheets 4 are connected in a hinge-like manner by using movable hinges 6 (for example Figure 3 ). The connection in the hinge-like manner means that the connection between the rigid conductor sheets can be folded up by changing the connection angle like a movable hinge. In this way, the folding of the box body can be realized by changing the angle at the connection, and the volume of the entire heating box body 2 can be reduced. The microwave source box body 1 serves as the oven door of the microwave oven as a whole.

[0028] Example 7 The outer shell material of the microwave source box body 1 of the microwave oven is a flexible conductor sheet 4 that can be bent and deformed. The flexible conductor sheet 4 is made of a five-layer non-porous composite conductive film, and the composite conductive film is made of plastic silver-plated. The heating box body 2 of the microwave oven is composed of rigid conductor sheets 4 with holes, and the diameter of the holes is 0.5 mm. The rigid conductor sheets 4 are also connected in a hinge-like manner by using movable hinges 6 (for example Figure 3 ). The microwave source box body 1 serves as the oven door of the microwave oven as a whole.

[0029] Example 8 The microwave source box body 1 of the microwave oven adopts a conventional fixed - shape structure. The heating box body uses a rigid conductor sheet 4 without holes and is connected in a nested and sliding - out form (such as Figure 4 ): The connection in the nested and sliding - out form means that the whole heating box body is divided into multiple segments, and relative sliding can be achieved between the segments so that they can be nested together. The gap width at the connection gap 7 of each nested structure is 0.2 mm. In this way, the enlargement or reduction of the heating box body can be realized by the nested and sliding - out of multiple rigid conductor plates. The microwave source box body 1 serves as the oven door of the microwave oven as a whole.

[0030] Example 9 The microwave source box body 1 of the microwave oven adopts a conventional fixed - shape structure. The heating box body 2 of the microwave oven is composed of rigid conductor sheets 4 without holes, and each conductor sheet is connected by manually locking screws and nuts. When not in use, it can be disassembled into loose pieces and stacked. The microwave source box body 1 serves as the oven door of the microwave oven as a whole.

[0031] Example 10 The microwave source box body 1 of the microwave oven adopts a conventional fixed - shape structure. The heating box body 2 of the microwave oven is composed of rigid conductor sheets 4 without holes, and each conductor sheet is connected by conventional easily - disassembled and assembled buckles. When not in use, it can be disassembled into loose pieces and stacked. The microwave oven door is arranged on the end face 5.

Claims

1. A foldable and portable microwave oven, which is composed of a microwave source box body (1) and a heating box body (2), is characterized in that, The heating box (2) can be deformed or folded to reduce the storage volume; while the microwave source box 1 can adopt a structure that can be deformed to reduce the volume, or a conventional fixed-shape structure.

2. The foldable portable microwave oven according to claim 1, characterized in that, The box board materials used for the microwave source box (1) and the heating box (2) can be flexible conductor sheets or conventional rigid conductor sheets, and the sheets can be poreless or have pores, and the diameter or width of the pores should be in the range of 0.001 to 2 millimeters.

3. The foldable portable microwave oven according to claim 1, characterized in that, There are mainly the following four ways for the box to achieve folding deformation and are not limited to these four: First, the box adopts a bendable flexible conductor material and the foldable structure shown in Figure 2; Second, the box adopts the hinge-type foldable structure shown in Figure 3, and the connection between the individual conductor sheets forming the box is in the form of movable hinges; Third, the box adopts the nested pull-out structure shown in Figure 4, with the material being a rigid conductor sheet, but the whole box is divided into multiple sections, and the connection between the sections is in the form of nested pull-out; Fourth, the box adopts a plate made of rigid conductor material, but the connection between the plates is in the form of quick-disassembly connection.

4. A foldable portable microwave oven according to claim 3, characterized in that, The portable microwave oven can adopt one of the four folding deformation methods described in Claim 3, or a hybrid method of two or more of them to reduce the volume of the microwave oven.

5. A foldable portable microwave oven according to claim 2, characterized in that, The flexible conductor sheet can be a flexible conductor fabric or a flexible conductive film; it can be a single-layer conductor fabric or film, or a conductive multi-layer composite fabric or multi-layer composite film.

6. The conductor fabric described in Claim 5 refers to a conductive non-woven fabric, woven fabric or woven mesh made of fibers or filaments of conductive materials such as carbon fibers and metal wires, and the diameter of the mesh holes on the fabric should be in the range of 0.001 to 2 millimeters; the conductive film can be a flexible pure conductor material film made of a conductor, or a flexible composite conductive film formed by plating a conductor on a flexible plastic.

7. A foldable and portable microwave oven according to claim 2, characterized in that, The rigid conductor sheet is the thin board of rigid conductive material commonly used in existing microwave ovens, and it can be a complete poreless thin board, or have small holes or slits, and the diameter of the small holes or the width of the slits should be in the range of 0.001 to 2 millimeters.

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