Double-hot-air heating pipe and cooking electric appliance

Abstract

The utility model belongs to the technical field of double hot air heating pipes, and particularly relates to a double hot air heating pipe and a cooking electric appliance. The heating pipe is wound to form an annular pipe structure, the inner side of the annular pipe structure is provided with at least two empty areas, and the two empty areas are used for penetrating through two fan blades of the double fans respectively; a positive electrode and a negative electrode are respectively arranged at two ends of the heating pipe; the double-hot-air heating pipe is applied to a double-fan structure of a cooking electric appliance, two fan blades of the double fans are arranged in the two empty areas in a penetrating mode respectively, the double-hot-air heating pipe is connected with a cable through a positive electrode and a negative electrode, then the heating pipe can be powered on, and the heating pipe generates heat. Compared with the prior art that positive and negative electrodes at two ends of two heating pipes need to be independently connected with electric wires, wiring is simple, and installation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of double hot air heating tubes, and in particular relates to a double hot air heating tube and a cooking appliance. Background Art

[0002] At present, there are many kinds of cooking appliances, such as dual-fan ovens, which generally have two hot air blowers on the upper and lower or left and right sides of the rear side of the oven inner tank. The two hot air blowers work simultaneously during baking. Compared with a single-fan oven, the circulating air volume of the dual-fan oven outlet is large enough, and the hot air can reach the door and then return from the center to cover all food surfaces.

[0003] For example, the Chinese invention patent publication number CN116250736A discloses a control method for a dual-fan oven and a dual-fan oven, and the specification thereof states that "a first fan 41 of the first hot air blower 4 is provided with a first annular back heating tube 63 on its outer periphery, and a second fan 51 of the second hot air blower 5 is provided with a second annular back heating tube 64 on its outer periphery", and the appendix to the specification states that Figure 3 The double hot air heating tubes shown in the middle number 63 and 64; it is clear from the above that each of the two hot air blowers is provided with a separate heating tube, and the positive and negative electrodes at both ends of the two heating tubes need to be connected with separate wires, resulting in complicated wiring. In addition, two heating tubes need to be installed on the back side of the oven inner tank, which is not easy to install. Utility Model Content

[0004] The utility model aims to provide a double hot air heating tube and a cooking appliance, aiming to solve one of the technical problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, an embodiment of the utility model provides a dual hot air heating tube, which is applied to the dual fan structure of a cooking appliance, and includes a heating tube; the heating tube is wound to form an annular tube structure, and the inner side of the annular tube structure has at least two empty areas, and the two empty areas are used to respectively pass through the two blades of the dual fan; the two ends of the heating tube are respectively provided with a positive electrode and a negative electrode.

[0006] Optionally, the annular tube structure is annular tubes with at least two layers stacked.

[0007] Optionally, two ends of the heating tube are arranged in parallel and face the same side.

[0008] Optionally, the dual hot air heating tube further includes a mounting plate; the mounting plate is penetrated by two mounting holes, and the two ends of the heating tube are respectively fixedly penetrated through the two mounting holes.

[0009] Optionally, the mounting plate is provided with at least one fastener, and the fastener is used to fix the mounting plate to the cooking appliance.

[0010] Optionally, the annular tube structure is provided with a plurality of mounting brackets, and the mounting brackets are used to fix the annular tube structure to the cooking appliance.

[0011] Optionally, the mounting bracket includes a base and a stand mounted on the base; the stand is provided with at least one slot, and each annular tube of the annular tube structure is snap-connected in one of the slots; the base is used for fixed installation on the cooking appliance.

[0012] Optionally, the base is provided with at least one connecting hole.

[0013] Optionally, the annular tube structure is in an "8" shape.

[0014] The embodiment of the utility model also provides a cooking appliance having the above-mentioned double hot air heating tubes.

[0015] Compared with the prior art, the above one or more technical solutions in the double hot air heating tube provided in the embodiment of the utility model have at least one of the following technical effects:

[0016] A heating tube is wound to form an annular tube structure, and the inner side of the annular tube structure has two empty areas; the double hot air heating tube is applied to the double fan structure of the cooking appliance, so that the two blades of the double fan are respectively inserted into the two empty areas, and the double hot air heating tube can be energized by connecting a positive electrode and a negative electrode to the heating tube to generate heat. Compared with the method in the prior art where the positive and negative electrodes at both ends of the two heating tubes need to be connected with separate wires, the wiring is simple and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic structural diagram of the double hot air heating tube of the utility model.

[0019] Figure 2 This is an exploded view of the double hot air heating tube of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the cooking appliance of the present utility model.

[0021] Among them, the reference numerals in the figure are:

[0022] 100, heating tube; 110, annular tube structure; 111, empty area; 112, annular tube; 120, positive electrode; 130, negative electrode; 140, mounting plate; 141, mounting hole; 142, fastener; 150, mounting frame; 151, stand; 152, slot; 153, base; 154, connecting hole;

[0023] 200, cooking appliance; 210, housing; 220, inner pot; 230, rear side panel; 240, fan blade. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0028] In one embodiment of the present invention, referring to Figure 1-Figure 3, providing a double hot air heating tube, which is mainly used in the double fan structure of the cooking appliance 200, but is not limited to the cooking appliance 200; the double hot air heating tube includes a heating tube 100.

[0029] The heating tube 100 is wound to form an annular tube structure 110, and the inner side of the annular tube structure 110 has at least two empty areas 111, and the two empty areas 111 are used to respectively pass through the two blades 240 of the double fan. The two ends of the heating tube 100 are respectively provided with a positive electrode 120 and a negative electrode 130.

[0030] Compared with the prior art, the above one or more technical solutions in the double hot air heating tube 100 provided in the embodiment of the utility model have at least one of the following technical effects:

[0031] A ring-shaped tube structure 110 is formed by winding a heating tube 100, and the inner side of the ring-shaped tube structure 110 has two empty areas 111; the double hot air heating tube 100 is applied to the double fan structure of the cooking appliance 200, so that the two blades 240 of the double fan are respectively inserted into the two empty areas 111, and the double hot air heating tube 100 can be energized by connecting a positive electrode 120 and a negative electrode 130 to a cable (the cable is connected to an external power supply), so that the heating tube 100 generates heat. Compared with the method in the prior art that the positive and negative electrodes 130 at both ends of the two heating tubes 100 need to be separately connected to wires, the wiring is simple and the installation is convenient.

[0032] The positive electrode 120 and the negative electrode 130 can be fixed to the two ends of the heating tube 100 by welding. The positive electrode 120 and the negative electrode 130 are both penetrated by wiring holes, which are used to be electrically connected to the cables for easy wiring.

[0033] Furthermore, the annular tube structure 110 is composed of at least two layers of stacked annular tubes 112. By stacking at least two layers of stacked annular tubes 112, the heating efficiency of the heating tube 100 is improved, and the heating effect is good.

[0034] Furthermore, the two ends of the heating tube 100 are arranged in parallel and face the same side, so that the positive electrode 120 and the negative electrode 130 are arranged side by side, which facilitates the connection of the positive electrode 120 and the negative electrode 130 .

[0035] In another embodiment of the utility model, the dual hot air heating tube 100 further includes a mounting plate 140. The mounting plate 140 is provided with two mounting holes 141, and the two ends of the heating tube 100 are respectively fixedly penetrated in the two mounting holes 141. The two ends of the heating tube 100 can be fixedly penetrated in the two mounting holes 141 by means of clamping, bonding or welding, and the two ends of the heating tube 100 are fixed together by the mounting plate 140, so that the dual hot air heating tube 100 can be installed in the cooking appliance 200 later.

[0036] Furthermore, the mounting plate 140 is provided with at least one fastener 142, and the fastener 142 is used to fix the mounting plate 140 on the rear side plate 230 of the inner pot 220 of the cooking appliance 200. Specifically, the fastener 142 can be a screw, the screw rod of which is provided through the mounting plate 140 and is screwed into a threaded hole or a nut on the rear side plate 230, so that the mounting plate 140 is fixedly installed in the cooking appliance 200, which is convenient for installation.

[0037] In another embodiment of the present invention, the annular tube structure 110 is provided with a plurality of mounting brackets 150 , and the mounting brackets 150 are used to fix the annular tube structure 110 in the cooking appliance 200 .

[0038] Furthermore, the mounting frame 150 includes a base 153 and a stand 151 disposed on the base 153. The stand 151 is provided with at least one clamping slot 152, and each annular tube 112 of the annular tube structure 110 is clamped into a clamping slot 152 from a notch of the clamping slot 152. In a specific embodiment, the annular tube structure 110 is a two-layer stacked annular tube 112, and the stand 151 is provided with two clamping slots 152 from top to bottom, and the two layers of annular tubes 112 are clamped into the two clamping slots 152 respectively.

[0039] The base 153 is used to be fixedly mounted on the cooking appliance 200 by screws. During installation, each annular tube 112 of the annular tube structure 110 is engaged with a slot 152, and a plurality of mounting racks 150 are connected to the annular tube structure 110, and then the base 153 of the mounting rack 150 is fixedly mounted on the rear side plate 230 of the inner pot 220 of the cooking appliance 200 by screws.

[0040] Furthermore, the base 153 is penetrated by at least one connecting hole 154, and each connecting hole 154 is penetrated by a screw, which is screwed into a threaded hole or a nut on the rear side panel 230 of the inner pot 220 of the cooking appliance 200, thereby fixing the dual hot air heating tube 100 on the rear side panel 230 for easy installation.

[0041] Furthermore, the annular tube structure 110 is in an "8" shape, so that two empty areas 111 are formed on the inner side of the annular tube structure 110, and the two empty areas 111 are roughly circular and are used to adapt to the two blades 240 of the dual fan.

[0042] In another embodiment of the present invention, a cooking appliance 200 is provided, which has the above-mentioned double hot air heating tube 100.

[0043] Furthermore, the cooking appliance 200 also includes a shell 210; the shell 210 is provided with an inner tank 220, and a rear side panel 230 of the inner tank 220 is provided with dual fans (i.e., two fans) up and down or left and right, the annular tube structure 110 of the dual hot air heating tube 100 is sleeved on the outside of the two blades 240 of the dual fans, and then the mounting plate 140 is fixedly installed on the rear side panel 230 by fasteners 142, and the base 153 of the mounting frame 150 is fixedly installed on the rear side panel 230 by screws, so that the dual hot air heating tube 100 is fixedly installed on the rear side panel 230 of the inner tank 220, and the installation is convenient.

[0044] The rest of this embodiment is the same as the first embodiment. The features not explained in this embodiment are all based on the explanations in the first embodiment and will not be described in detail here.

[0045] The above content is a further detailed description of the utility model in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, its architecture can be flexible and can derive a series of products. Just making a few simple deductions or substitutions should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A double hot air heating tube (100), applied to a double fan structure of a cooking appliance (200), characterized in that: The invention comprises a heating tube (100); the heating tube (100) is wound to form an annular tube structure (110); the inner side of the annular tube structure (110) has at least two empty areas (111); the two empty areas (111) are used to respectively pass through two blades (240) of the dual fan; and the two ends of the heating tube (100) are respectively provided with a positive electrode (120) and a negative electrode (130).

2. The double hot air heating tube (100) according to claim 1, characterized in that: The annular tube structure (110) is at least two layers of stacked annular tubes (112).

3. The double hot air heating tube (100) according to claim 1, characterized in that: The two ends of the heating tube (100) are arranged in parallel and face the same side.

4. The double hot air heating tube (100) according to claim 3, characterized in that: The dual hot air heating tube (100) further comprises a mounting plate (140); the mounting plate (140) is provided with two mounting holes (141) extending therethrough, and the two ends of the heating tube (100) are respectively fixedly disposed through the two mounting holes (141).

5. The double hot air heating tube (100) according to claim 4, characterized in that: The mounting plate (140) is provided with at least one fastener (142), and the fastener (142) is used to fix the mounting plate (140) to the cooking appliance (200).

6. The double hot air heating tube (100) according to any one of claims 1 to 5, characterized in that: The annular tube structure (110) is provided with a plurality of mounting frames (150), and the mounting frames (150) are used to fix the annular tube structure (110) to the cooking appliance (200).

7. The double hot air heating tube (100) according to claim 6, characterized in that: The mounting frame (150) comprises a base (153) and a stand (151) arranged on the base (153); the stand (151) is provided with at least one slot (152), and each annular tube (112) of the annular tube structure (110) is snap-connected to one of the slots (152); the base (153) is used for fixed installation on the cooking appliance (200).

8. The double hot air heating tube (100) according to claim 7, characterized in that: The base (153) is provided with at least one connecting hole (154) extending therethrough.

9. The double hot air heating tube (100) according to claim 1, characterized in that: The annular tube structure (110) is in the shape of an "8".

10. A cooking appliance (200), characterized in that: A double hot air heating tube (100) as claimed in any one of claims 1 to 9.

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