Uniform heating device of microwave oven

Abstract

The utility model discloses a uniform heating device of a microwave oven, and belongs to the technical field of microwave ovens. Comprising a furnace box and a rotating shaft, the rotating shaft is in transmission connection with a transmission mechanism, the transmission mechanism and the rotating shaft are detachable, the transmission mechanism comprises a plurality of planetary pinions which can rotate and can rotate at the same time, each planetary pinion is fixedly provided with a small rotating disc, and the transmission mechanism is coaxially and detachably provided with a large rotating disc. When a plurality of small lunch boxes need to be heated at the same time, the large rotating disc is detached from the transmission mechanism, then each lunch box is placed on the corresponding small rotating disc, and at the moment, the small rotating discs rotate while the rotating shafts drive the small rotating discs to rotate, so that the periphery of each small rotating disc can be uniformly heated; and when a large lunch box needs to be heated, the large turntable is mounted on the transmission mechanism, and the large lunch box is placed on the large turntable.

Description

Technical Field

[0001] The present application relates to the technical field of microwave ovens, and more specifically, to a microwave oven uniform heating device. Background Art

[0002] In existing microwave ovens, a turntable assembly is provided inside the oven cavity. The turntable assembly includes a glass turntable and a roller bracket. Food is placed on the glass turntable, and the food rotates with the glass turntable. While rotating, the food absorbs microwaves, enabling the food to absorb microwaves in multiple directions inside the microwave oven cavity. However, microwaves are scattered, and in related industrial technologies, the microwave oven cavity generally adopts a cuboid shape, which is more conducive to the use of the internal space of the microwave oven. However, the microwave modes excited inside the cavity with such a regular shape are fewer, and the microwave mixing paths are less, which easily causes uneven heating of the food, resulting in an extended food heating time. The distance between the front panel of the existing microwave oven cavity and the convex bulge on the left side wall is relatively short, which easily causes excessive microwave energy to accumulate around the front panel of the cavity. Excessive microwave energy accumulates here, and it is easy to occur a sparking problem.

[0003] The prior art document with the publication number CN 210951414 U provides a microwave oven for uniformly heating food. This device can increase the directions of microwave reflection through the microwave reflection grooves and the convex bulge on the left side wall inside the microwave oven cavity, enabling the food to absorb microwave heat energy in all directions, thereby making the food heated evenly.

[0004] Although the above prior art solution can achieve relevant beneficial effects through the structure of the prior art, there are still the following defects: when using this device, when multiple heating lunch boxes are placed on the glass turntable at one time, the heating effect of the annular distribution method is higher than that of the upper and lower stacked placement. However, there are still relatively large problems with the annular distribution on the glass turntable, that is, the multiple lunch boxes distributed in an annular shape can only rotate with the glass turntable during heating and cannot achieve self-rotation, which leads to a large temperature difference between the area where multiple lunch boxes are close to each other and the outer area, resulting in the problem of uneven heating.

[0005] In view of this, we propose a microwave oven uniform heating device. Utility Model Content

[0006] 1. Technical Problems to be Solved

[0007] The purpose of the present application is to provide a microwave oven uniform heating device, which solves the technical problems in the above background art and achieves the technical effect of uniformly heating multiple lunch boxes.

[0008] 2. Technical Solutions

[0009] The technical solution of the present application provides a microwave oven uniform heating device, including an oven chamber and a rotating shaft. A transmission mechanism is drivingly connected to the rotating shaft, and the transmission mechanism is detachable from the rotating shaft. The transmission mechanism includes a plurality of planetary pinions that can rotate and rotate on their own. A small turntable is fixedly installed on each planetary pinion. A large turntable is detachably installed coaxially with the transmission mechanism, and the large turntable is placed above the small turntable.

[0010] By adopting the above technical solution, since the transmission mechanism is detachable from the rotating shaft, it is convenient to disassemble and clean the transmission mechanism. When multiple smaller lunch boxes need to be heated simultaneously, the large turntable is removed from the transmission mechanism, and then each lunch box is placed on the small turntable. At this time, while the rotating shaft drives the multiple small turntables to rotate, the multiple small turntables also rotate on their own, so that the periphery of each small turntable can be evenly heated, and finally the purpose of uniform heating is achieved. When a large lunch box needs to be heated, the large turntable is installed on the transmission mechanism, and the large lunch box is placed on the large turntable.

[0011] As an alternative solution of the technical solution of the present application document, the transmission mechanism further includes a gear ring coaxially arranged with the rotating shaft and fixed in the oven chamber, a sun gear coaxially arranged with the gear ring, and a planetary carrier. The sun gear is detachable from the planetary carrier, the sun gear is detachable from the rotating shaft, the planetary pinions are engaged between the sun gear and the gear ring, and the planetary pinions are rotatably arranged on the planetary carrier.

[0012] By adopting the above technical solution, the sun gear is coaxially arranged with the rotating shaft and detachable. The rotating shaft drives the sun gear to rotate, and the sun gear drives the multiple planetary pinions to rotate. And under the meshing action, the multiple planetary pinions rotate on their own. A small turntable is coaxially fixed on the upper surface of each planetary pinion, and finally each lunch box placed on the small turntable rotates and rotates on its own.

[0013] As an alternative solution of the technical solution of the present application document, a card slot is opened at one axial end of the sun gear, and a prism adapted to the card slot is fixedly installed at one axial end of the large turntable.

[0014] By adopting the above technical solution, through the cooperation of the prism and the card slot, the quick disassembly and assembly of the large turntable and the sun gear are realized, and then the quick switching between using the large turntable and the small turntable is carried out.

[0015] As an alternative solution of the technical solution of the present application document, a shaft rod is coaxially fixed at one end of the sun gear away from the card slot, and threaded holes are coaxially opened in both the shaft rod and the rotating shaft.

[0016] By adopting the above technical solution, through the threaded connection of the bolt and the threaded hole, it is convenient for the disassembly and assembly of the shaft rod and the rotating shaft.

[0017] As an optional solution of the technical solution of the present application document, the planet carrier includes a plurality of annularly distributed planet rods and shaft holes opened on the planet rods and adapted to the shaft rods.

[0018] By adopting the above technical solution, a T-shaped shaft is vertically fixed to the outer end of the planetary rod, a countersunk hole matching the T-shaped shaft is coaxially opened on the planetary pinion, and the shaft rod is inserted into the shaft hole, so that the planetary carrier and the sun gear can be disassembled.

[0019] 3. Beneficial effects

[0020] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0021] 1. The present application is detachable through the transmission mechanism and the rotating shaft, so that the transmission mechanism can be disassembled and cleaned. When multiple smaller lunch boxes need to be heated at the same time, the large turntable is removed from the transmission mechanism, and then each lunch box is placed on the small turntable. At this time, while the multiple small turntables are driven to rotate by the rotating shaft, the multiple small turntables also rotate on themselves, so that the four sides of each small turntable can be evenly heated, ultimately achieving the purpose of uniform heating. When a large lunch box needs to be heated, the large turntable is installed on the transmission mechanism, and the large lunch box is placed on the large turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the overall structure of multiple small turntables in use of a microwave oven uniform heating device disclosed in a preferred embodiment of the present application;

[0023] Figure 2 A microwave oven uniform heating device disclosed in a preferred embodiment of the present application Figure 1 The enlarged structural diagram at A in the middle;

[0024] Figure 3 A schematic diagram of the structure of a large turntable in use of a microwave oven uniform heating device disclosed in a preferred embodiment of the present application;

[0025] Figure 4 A schematic diagram of the transmission mechanism structure of a microwave oven uniform heating device disclosed in a preferred embodiment of the present application;

[0026] Figure 5 A schematic diagram of the structure of a large turntable of a microwave oven uniform heating device disclosed in a preferred embodiment of the present application;

[0027] Figure 6 A schematic diagram of the structure of a planetary frame of a microwave oven uniform heating device disclosed in a preferred embodiment of the present application;

[0028] Figure 7 A schematic cross-sectional structure diagram of a planetary pinion of a microwave oven uniform heating device disclosed in a preferred embodiment of the present application;

[0029] Figure 8 Schematic diagram of furnace chamber and rotating shaft structure

[0030] Description of reference numerals in the figure: 1. Furnace chamber; 2. Rotating shaft; 3. Small turntable; 4. Large turntable; 401. Prism; 5. Transmission mechanism; 501. Ring gear; 502. Sun gear; 5021. Shaft rod; 5022. Card slot; 5023. Threaded hole; 503. Planet pinion; 5031. Counterbore; 504. Planet carrier; 5041. Planet rod; 5042. T-shaped shaft; 5043. Shaft hole Specific embodiments

[0031] The present application will be further described in detail below with reference to the accompanying drawings of the specification

[0032] A microwave oven uniform heating device includes a furnace chamber 1 and a rotating shaft 2. A transmission mechanism 5 is drivingly connected to the rotating shaft 2. The transmission mechanism 5 is detachably connected to the rotating shaft 2. The transmission mechanism 5 includes a plurality of planet pinions 503 that can rotate and rotate around their own axes simultaneously. A small turntable 3 is fixedly installed on each planet pinion 503. The transmission mechanism 5 is coaxially and detachably installed with a large turntable 4. The large turntable 4 is placed above the small turntable 3

[0033] Refer to Figures 1-8 , due to the detachable connection between the transmission mechanism 5 and the rotating shaft 2, it is convenient to disassemble and clean the transmission mechanism 5. When multiple smaller lunch boxes need to be heated simultaneously, the large turntable 4 is removed from the transmission mechanism 5, and then each lunch box is placed on the small turntable 3. At this time, while the rotating shaft 2 drives the plurality of small turntables 3 to rotate, the plurality of small turntables 3 also rotate around their own axes, so that the peripheries of each small turntable 3 can be uniformly heated, and finally the purpose of uniform heating is achieved. When a large lunch box needs to be heated, the large turntable 4 is installed on the transmission mechanism 5, and the large lunch box is placed on the large turntable 4

[0034] The transmission mechanism 5 further includes a ring gear 501 coaxially arranged with the rotating shaft 2 and fixed in the furnace chamber 1, a sun gear 502 coaxially arranged with the ring gear 501, and a planet carrier 504. The sun gear 502 is detachably connected to the planet carrier 504. The sun gear 502 is detachably connected to the rotating shaft 2. The planet pinions 503 are engaged between the sun gear 502 and the ring gear 501. The planet pinions 503 are rotatably arranged on the planet carrier 504

[0035] Refer to Figure 1 and Figure 2 and Figure 4, the sun gear 502 is coaxial with the rotating shaft 2 and can be disassembled and assembled. The sun gear 502 is driven to rotate by the rotating shaft 2. The sun gear 502 drives a plurality of planetary pinions 503 to rotate. And under the meshing action, the plurality of planetary pinions 503 are enabled to rotate self. A small turntable 3 is coaxially fixed on the upper surface of each planetary pinion 503. Finally, it is realized that each lunch box placed on the small turntable 3 rotates and rotates self at the same time.

[0036] A clamping groove 5022 is formed at one axial end of the sun gear 502. A prism 401 adapted to the clamping groove 5022 is fixedly installed at one axial end of the large turntable 4.

[0037] Referring to Figure 2 and Figure 5 , through the cooperation of the prism 401 and the clamping groove 5022, the quick disassembly and assembly of the large turntable 4 and the sun gear 502 are realized, and then the quick switching between using the large turntable 4 or the small turntable 3 is carried out.

[0038] A shaft rod 5021 is coaxially fixed at one end of the sun gear 502 away from the clamping groove 5022. Threaded holes 5023 are coaxially formed in both the shaft rod 5021 and the rotating shaft 2.

[0039] Referring to Figure 2 and Figure 4 , through the threaded connection of the bolt and the threaded hole 5023, the disassembly and assembly of the shaft rod 5021 and the rotating shaft 2 are facilitated.

[0040] The planet carrier 504 includes a plurality of annularly distributed planet rods 5041 and shaft holes 5043 formed in the planet rods 5041 and adapted to the shaft rod 5021.

[0041] Referring to Figure 6 and Figure 7 , a T-shaped shaft 5042 is vertically fixed at the outer end of the planet rod 5041. A counterbore 5031 adapted to the T-shaped shaft 5042 is coaxially formed in the planetary pinion 503. And the shaft rod 5021 is inserted into the shaft hole 5043, and the planet carrier 504 and the sun gear 502 can be disassembled.

[0042] Working principle: When it is necessary to heat a plurality of small lunch boxes at the same time, the large turntable 4 is removed from the sun gear 502, the small lunch boxes are placed on the small turntable 3, then the door of the oven box 1 is closed, the microwave oven is started, the rotating shaft 2 drives the sun gear 502 to rotate, the sun gear 502 drives a plurality of planetary pinions 503 to rotate, and in cooperation with the ring gear 501, the planetary pinions 503 and the small turntables 3 fixed on the upper surfaces rotate and rotate self at the same time, so that each surface of the food in each lunch box on each small turntable 3 can be evenly heated.

Claims

1. A uniform heating device for a microwave oven, comprising a furnace box (1) and a rotating shaft (2), characterized in that: The rotating shaft (2) is connected to a transmission mechanism (5), the transmission mechanism (5) and the rotating shaft (2) are detachable, the transmission mechanism (5) comprises a plurality of planetary pinions (503) which are rotatable and self-rotatable, each of the planetary pinions (503) is fixedly mounted with a small turntable (3), the transmission mechanism (5) is coaxially detachably mounted with a large turntable (4), and the large turntable (4) is placed above the small turntable (3).

2. A microwave oven uniform heating device according to claim 1, characterized in that: The transmission mechanism (5) further comprises a gear ring (501) coaxially arranged with the rotating shaft (2) and fixed in the furnace box (1), and a sun gear (502) and a planet carrier (504) coaxially arranged with the gear ring (501); the sun gear (502) and the planet carrier (504) are detachable, and the sun gear (502) and the rotating shaft (2) are detachable; the planet pinion (503) is meshed between the sun gear (502) and the gear ring (501); and the planet pinion (503) is rotatably arranged on the planet carrier (504).

3. A uniform heating device for a microwave oven according to claim 2, characterized in that: A slot (5022) is provided at one axial end of the sun gear (502), and a prism (401) adapted to the slot (5022) is fixedly mounted at one axial end of the large turntable (4).

4. A uniform heating device for a microwave oven according to claim 3, characterized in that: A shaft (5021) is coaxially fixed to one end of the sun gear (502) away from the slot (5022), and a threaded hole (5023) is coaxially formed on the shaft (5021) and the rotating shaft (2).

5. A uniform heating device for a microwave oven according to claim 3, characterized in that: The planet carrier (504) includes a plurality of planet rods (5041) distributed in an annular manner and shaft holes (5043) opened on the planet rods (5041) and adapted to the shaft rod (5021).

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