Microwave heating device with prolonged service life

Abstract

The utility model discloses a microwave heating device with an improved service life, and the device comprises a magnetron which is configured to generate microwaves for the microwave heating device after power supply, and comprises a housing and a vacuum part disposed in the housing; one surface of the shell is also provided with a lead-out port which is used as a microwave outlet; the waveguide tube is connected with the magnetron so as to conduct microwaves generated by the magnetron to a heating cavity of the microwave heating device; the waveguide tube is provided with a butt joint port at a position corresponding to the leading-out port on the shell, a convex ring is arranged between the butt joint port and the leading-out port, when the waveguide tube is fixedly connected with the magnetron, at least one part of the leading-out port is surrounded by the convex ring, and the connecting surfaces of the waveguide tube and the magnetron are separated by a certain distance by the convex ring. According to the microwave heating device, the aging speed of electrical components in the magnetron is reduced, and the service life of the microwave heating device is prolonged.

Description

Technical Field

[0001] This application relates to a microwave heating device for improving lifespan. Background Technology

[0002] The magnetron is the core component of a microwave heating device. When powered, it generates microwaves to heat objects. During operation, heat from inside the microwave equipment is conducted to the magnetron. Excessive heat can affect the lifespan of the electrical components inside the magnetron, ultimately impacting the lifespan of the microwave oven. Summary of the Invention

[0003] In view of this, the technical problem to be solved by this application is to provide a microwave heating device with improved lifespan, so as to solve the problem of reduced lifespan of microwave heating devices in the prior art due to the influence of internal heat.

[0004] To address the aforementioned problems, this application provides a microwave heating device with improved lifespan, comprising:

[0005] A magnetron, configured to generate microwaves for the microwave heating device after power is supplied, includes a housing and a vacuum component disposed within the housing; an outlet is also provided on one side of the housing as an outlet for the microwaves;

[0006] A waveguide, which is connected to a magnetron, conducts microwaves generated by the magnetron to the heating cavity of a microwave heating device; a mating interface is provided at the position corresponding to the outlet on the outer shell of the waveguide, and a convex ring is provided between the mating interface and the outlet. When the waveguide and the magnetron are fixedly connected, at least a part of the outlet is surrounded by the convex ring, and the connection surfaces of the waveguide and the magnetron are separated by a certain distance by the convex ring.

[0007] The microwave heating device with improved lifespan achieved in this application separates the waveguide and the magnetron by setting a convex ring between their connection surfaces, thereby significantly reducing the speed at which heat generated during microwave oven operation is conducted from the waveguide to the magnetron. This reduces the aging rate of electrical components inside the magnetron and improves the lifespan of the microwave heating device. Attached Figure Description

[0008] Figure 1 The diagram shown is an exploded view of a partial structure of a microwave heating device provided in one embodiment of this application.

[0009] Figure 2 for Figure 1 A schematic diagram of a partial structure of the waveguide of the microwave heating device in the illustrated embodiment. Detailed Implementation

[0010] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer and more understandable, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit the scope of this application.

[0011] In this application, terms referring to orientation, such as up, down, top, bottom, inside, outside, high, and low, are based on the position of the microwave heating device under normal operating conditions.

[0012] In existing technologies, when the waveguide and magnetron are connected, their connection surfaces are in direct contact. This allows the heat generated during microwave oven operation to be directly conducted to the magnetron through the waveguide. Under the long-term influence of this heat, the lifespan of the electrical components inside the magnetron is greatly affected, becoming one of the main causes of microwave heating device malfunctions.

[0013] This application proposes the following technical solution to realize a microwave heating device with improved lifespan, including:

[0014] A magnetron, configured to generate microwaves for the microwave heating device after power is supplied, includes a housing and a vacuum component disposed within the housing; an outlet is also provided on one side of the housing as an outlet for the microwaves;

[0015] A waveguide, connected to a magnetron, conducts microwaves generated by the magnetron to the heating cavity of a microwave heating device. A mating interface is provided at a position corresponding to the outlet on the outer shell of the waveguide. A protruding ring is present between the mating interface and the outlet. When the waveguide and magnetron are fixedly connected, at least a portion of the outlet is surrounded by the protruding ring, and the connecting surfaces of the waveguide and magnetron are separated by a certain distance by the protruding ring. In at least one embodiment, the protruding ring is a flange extending along the mating interface towards the outer wall of the waveguide, and the protruding ring and the waveguide are an integral aluminum structure. In at least one embodiment, the protruding ring is an independent protruding ring fixed to the outer periphery of the mating interface. In at least one embodiment, the height of the protruding ring is between 1-7 mm. In at least one embodiment, the height of the protruding ring is 5 mm. In at least one embodiment, the inner diameter of the protruding ring is 22 mm, and the wall thickness is 3 mm.

[0016] In at least one embodiment, the outer wall of the connection surface between the waveguide and the magnetron is further provided with a plurality of protrusions, which are evenly distributed on the outer wall of the connection surface between the waveguide and the magnetron.

[0017] In at least one embodiment, the magnetron is also connected to an air guide shroud.

[0018] In at least one embodiment, the air guide shroud is also connected to a cooling fan.

[0019] The specific implementation process and technical effects of this application will be described in detail below with reference to the accompanying drawings.

[0020] like Figure 1 As shown, a microwave heating device provided in one embodiment of this application includes: a magnetron 10 and a waveguide 20, the waveguide 20 being fixedly connected to the magnetron 10, wherein the waveguide connecting surface 21 and the magnetron connecting surface 13 are opposite each other as adjacent surfaces when they are connected; the magnetron 10 is also connected to a wind guide shroud, and the wind guide shroud is also connected to a cooling fan.

[0021] Further as Figure 1 As shown, the magnetron 10 includes a housing 11 and a vacuum component 12 built into the housing 11; an outlet 14 is also provided on one side of the housing 11. After being powered on, the magnetron 10 generates microwaves for the microwave heating device. The microwaves are introduced into the waveguide 20 from the outlet 14 to conduct the microwaves generated by the magnetron to the heating cavity of the microwave heating device.

[0022] like Figure 2 As shown, the waveguide 20 has a mating interface 24 on its waveguide connecting surface 21. The mating interface 24 has a protruding ring 22 extending outward along the outer wall of the waveguide connecting surface 21. When the waveguide 20 is fixedly connected to the magnetron 10, the outlet 14 on the magnetron 10 is inserted into the mating interface 24 of the waveguide 20. A portion of the outlet 14 is surrounded by the protruding ring 22, thus preventing direct contact between the waveguide connecting surface 21 and the magnetron connecting surface 13. Instead, they are separated by the protruding ring 22 at a distance equal to the height of the protruding ring 22. This significantly reduces the speed at which heat generated during microwave oven operation is conducted from the waveguide to the magnetron, thereby reducing the aging rate of electrical components inside the magnetron and improving the service life of the microwave heating device. The outer wall of the connecting surface between the waveguide 20 and the magnetron is also provided with multiple protrusions 23, preferably four, evenly distributed at the four corners of the connecting surface between the waveguide and the magnetron.

[0023] In one embodiment, the protruding ring 22 is an integral aluminum structure with the waveguide 20. In another embodiment, the protruding ring 22 is a separate structure, fixed to the outer periphery of the interface 24. In one embodiment, the height of the protruding ring 22 is between 1 and 7 mm. In another embodiment, the height of the protruding ring is 5 mm, the inner diameter of the protruding ring is 22 mm, and the wall thickness is 3 mm.

[0024] The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but this does not limit the scope of the invention. Those skilled in the art can implement the present invention in various modifications without departing from its scope and spirit; for example, a feature of one embodiment can be used in another embodiment to obtain yet another embodiment. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention should be within the scope of the present invention.

Claims

1. A microwave heating device with improved lifespan, comprising: A magnetron, configured to generate microwaves for the microwave heating device after power is supplied, includes a housing and a vacuum component disposed within the housing; an outlet is also provided on one side of the housing as an outlet for the microwaves; A waveguide connected to the magnetron to conduct microwaves generated by the magnetron to the heating cavity of the microwave heating device; characterized in that: The waveguide is provided with a mating interface at the position corresponding to the outlet on the outer shell. A convex ring is provided between the mating interface and the outlet. When the waveguide is fixedly connected to the magnetron, at least a part of the outlet is surrounded by the convex ring, and the connection surfaces of the waveguide and the magnetron are separated by a certain distance by the convex ring.

2. The microwave heating device according to claim 1, characterized in that: The convex ring is a flange extending along the interface towards the outer wall of the waveguide, and it is an integral aluminum structure with the waveguide.

3. The microwave heating device according to claim 1, characterized in that: The convex ring is an independent convex ring, and the convex ring is fixed to the outer periphery of the mating interface.

4. The microwave heating device according to claim 1, characterized in that: The height of the convex ring is between 1 and 7 mm.

5. The microwave heating device according to claim 1, characterized in that: The height of the convex ring is 5mm.

6. The microwave heating device according to claim 1, characterized in that: The inner diameter of the convex ring is 22mm, and the wall thickness is 3mm.

7. The microwave heating device according to claim 1, characterized in that: The outer wall of the connection surface between the waveguide and the magnetron is also provided with a plurality of protrusions, which are evenly distributed on the outer wall of the connection surface between the waveguide and the magnetron.

8. The microwave heating device according to claim 1, characterized in that: The magnetron is also connected to an air guide cover.

9. The microwave heating device according to claim 8, characterized in that: The air guide cover is also connected to a cooling fan.

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