Microwave stirrer driving structure and portable microwave oven

Abstract

The utility model relates to the technical field of microwave ovens, and provides a microwave stirrer driving structure and a portable microwave oven.The microwave stirrer driving structure comprises a motor device used for providing power for rotation of a microwave stirrer; one end of the heat insulation connecting rod is connected with a rotating shaft of the motor device, and the other end is detachably and fixedly connected with the microwave stirrer. According to the microwave stirrer driving structure, efficient and stable connection between the motor device and the microwave stirrer is achieved through the ingeniously-designed microwave stirrer driving structure, the motor device is not prone to being affected by high temperature in the operation process through the heat insulation effect of the heat insulation connecting rod, and therefore heat loss and overheating risks are reduced, and the service life of the microwave stirrer is prolonged. And through the stable combination of the motor mounting plate and the partition plate and the insertion and screw fixing design of the motor fixing part and the motor connecting part, the vertical movement of the motor shaft is effectively prevented, the overall structural performance and the operation reliability of the microwave oven are further enhanced, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave ovens, and particularly relates to a driving structure of a microwave stirrer and a portable microwave oven. Background Art

[0002] A microwave oven uses a magnetron to emit high-frequency microwaves, and then conducts the high-frequency microwaves to the interior of the microwave oven cavity through a waveguide box to heat the food in the cavity with microwaves. A microwave inlet is provided at the tail of the waveguide box, and the inlet is connected to the magnetron. A microwave outlet is provided at the front of the waveguide box, and the outlet is communicated with the cavity. A microwave stirrer is connected to the outlet of the waveguide box. The microwave stirrer drives a microwave stirring piece made of a metal material to rotate through a motor to reflect the microwaves in all directions, so that the microwaves can be more evenly distributed in the cavity and a better heating effect can be achieved.

[0003] However, in the existing microwave oven design, the motor shaft is directly connected to the stirrer, which causes the heat generated by the food or the heating cavity during the heating process to easily conduct to the motor through the stirrer, thereby affecting the performance and service life of the motor. At the same time, the stability of the motor shaft during operation is also an important factor affecting the heating effect of the microwave oven. In the traditional design, due to the lack of a reliable fixed connection structure between the motor device and its support structure, the motor shaft is prone to move up and down, which not only affects the uniformity of microwave distribution, but also may cause additional wear to the internal structure of the microwave oven. Summary of the Utility Model

[0004] In view of this, the utility model aims to provide a driving structure of a microwave stirrer and a portable microwave oven, aiming to solve the problems existing in the traditional microwave oven in terms of heat conduction and the stability of the motor shaft. By introducing connecting rods and optimizing the motor fixing method and other technical means, the overall performance of the microwave oven is improved, and a more efficient and stable cooking experience is provided for users.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A driving structure of a microwave stirrer includes:

[0007] A motor device for providing power for the rotation of the microwave stirrer;

[0008] A heat insulation connecting rod, one end of which is connected to the rotating shaft of the motor device, and the other end is detachably and fixedly connected to the microwave stirrer.

[0009] Further, a coupler is provided at the end of the heat-insulating connecting rod away from the motor device. The coupler is inserted and fixedly engaged with the microwave stirrer. A connecting shaft sleeve is provided outside the coupler. The coupler can rotate relative to the connecting shaft sleeve under the driving action of the heat-insulating connecting rod. The connecting shaft sleeve is fixed on the upper surface of the furnace cavity bottom plate and can support the microwave stirrer.

[0010] Further, the heat-insulating connecting rod includes:

[0011] A first connecting portion, at the end of which a first insertion hole is provided for connecting the rotating shaft of the motor device;

[0012] A second connecting portion, which can extend into the coupler and drive it to rotate integrally.

[0013] Further, the first connecting portion is integrally cylindrical. A first insertion hole is provided at its lower end. The rotating shaft of the motor device is inserted into the first insertion hole and can be fixed relative to it. The second connecting portion is provided above the first connecting portion. The second connecting portion can be inserted into a second insertion hole at the lower end of the coupler and can be fixed relative to it, so as to realize the integral rotation of the rotating shaft of the motor device, the heat-insulating connecting rod, the coupler, and the microwave stirrer.

[0014] Further, the coupler includes a coupler body. A first insertion flange is provided at the upper end of the coupler body. A first stepped limiting portion that is retracted is formed at the connection between the coupler body and the first insertion flange. The first insertion flange is inserted into the central hole of the microwave stirrer for fitting and fixing. The first stepped limiting portion abuts against the lower surface of the microwave stirrer.

[0015] Further, a second limiting boss is provided on the outside of the coupler body. The second limiting boss is used for axially limiting and fixing the coupler and the connecting shaft sleeve.

[0016] Further, the connecting shaft sleeve includes a shaft sleeve plate. A third limiting flange is provided on the shaft sleeve plate. The third limiting flange is used for accommodating and limiting the coupler body of the coupler and supporting the microwave stirrer. A first connecting plate and a first insertion block are respectively provided on opposite sides of the shaft sleeve plate. The first insertion block is inserted and positioned with the furnace cavity bottom plate. The first connecting plate is fixedly connected to the furnace cavity bottom plate by screws.

[0017] Further, a partition is provided below the furnace cavity bottom plate. A motor mounting plate is provided on the partition. A motor fixing portion is provided on the motor mounting plate. Correspondingly, the motor device includes a motor main body and a motor connecting portion. The motor connecting portion is detachably and fixedly connected to the motor fixing portion. A second connecting hole is provided on the motor mounting plate. The second connecting hole is used for connecting the motor mounting plate and the waveguide box by screws.

[0018] Further, the lower end of the partition plate is connected to the flanging at the lower end of the front furnace plate and / or the rear furnace plate of the furnace cavity assembly by screws.

[0019] Compared with the prior art, the microwave stirrer driving structure of the present utility model has the following advantages:

[0020] (1) In the microwave stirrer driving structure of the present utility model, due to the heat insulation effect of the heat insulation connecting rod, the motor device is not easily affected by high temperature during operation, thereby reducing heat loss and overheating risk, improving the operation efficiency and service life of the motor, ensuring the stable rotation of the microwave stirrer, and further making the distribution of microwaves in the microwave oven cavity more uniform.

[0021] (2) In the microwave stirrer driving structure of the present utility model, through the ingeniously designed microwave stirrer driving structure, an efficient and stable connection between the motor device and the microwave stirrer is achieved. Through the stable combination of the motor mounting plate and the partition plate, and the plugging and screw fixing design of the motor fixing part and the motor connecting part, the up and down movement of the motor shaft is effectively prevented, further enhancing the overall structural performance and operation reliability of the microwave oven, and improving the user experience.

[0022] Another object of the present utility model is to provide a portable microwave oven, on which the above-mentioned microwave stirrer driving structure is provided.

[0023] The portable microwave oven and the above-mentioned microwave stirrer driving structure have the same advantages as those of the prior art, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0025] Figure 1 is a cross-sectional structural schematic diagram of the microwave stirrer driving structure according to an embodiment of the present utility model;

[0026] Figure 2 is a cross-sectional structural schematic diagram of the microwave stirrer driving structure from a second perspective according to an embodiment of the present utility model;

[0027] Figure 3 is a side view structural schematic diagram of the heat insulation connecting rod according to an embodiment of the present utility model;

[0028] Figure 4 is a side view structural schematic diagram of the heat insulation connecting rod from a second perspective according to an embodiment of the present utility model;

[0029] Figure 5Schematic side view structure diagram of the coupler according to the embodiment of the present utility model;

[0030] Figure 6 Schematic side view structure diagram of the coupler from a second perspective according to the embodiment of the present utility model;

[0031] Figure 7 Schematic top view structure diagram of the coupler according to the embodiment of the present utility model;

[0032] Figure 8 Schematic side view structure diagram of the connecting bushing according to the embodiment of the present utility model;

[0033] Figure 9 Schematic side view structure diagram of the connecting bushing from a second perspective according to the embodiment of the present utility model;

[0034] Figure 10 Schematic structure diagram of the portable microwave oven after removing the bottom shell plate and the lower bottom plate according to the embodiment of the present utility model;

[0035] Figure 11 is Figure 10 exploded structure diagram of the structure shown in;

[0036] Figure 12 Exploded structure diagram of the portable microwave oven according to the embodiment of the present utility model;

[0037] Figure 13 Exploded structure diagram of the portable microwave oven from a second perspective according to the embodiment of the present utility model;

[0038] Figure 14 Schematic side view structure diagram of the portable microwave oven according to the embodiment of the present utility model;

[0039] Explanation of reference numerals:

[0040] 100 - Filter assembly; 200 - Housing assembly; 300 - Door cover assembly; 400 - Oven cavity assembly; 1 - Microwave stirrer; 2 - Motor device; 201 - Motor main body; 202 - Motor connection part; 2021 - Third connection hole; 2022 - Fourth connection hole; 3 - Heat insulation connecting rod; 301 - First connection part; 302 - Second connection part; 303 - First limit boss; 304 - First insertion hole; 4 - Coupler; 401 - Coupling main body; 402 - First insertion flange; 403 - First step limit part; 404 - Second limit boss; 405 - First accommodation hole; 406 - Second insertion hole; 5 - Connecting bushing; 501 - Bushing plate; 502 - Third limit flange; 503 - First connection plate; 504 - Fifth connection hole; 505 - First insertion block; 506 - Anti - fooling flat plate; 507 - First positioning block; 6 - Partition board; 601 - Motor mounting plate; 602 - Motor fixing part; 6021 - First insertion post; 6022 - First connection hole; 603 - Second connection hole; 604 - Connection boss; 7 - Waveguide box; 8 - Rear plate of oven cavity; 801 - First flanging; 9 - Front plate of oven cavity; 901 - Second flanging; 10 - First connecting screw; 11 - Bottom plate of oven cavity; 12 - Frequency conversion device; 13 - Magnetron device; 14 - Lower bottom plate; 15 - Left shell plate; 16 - Right shell plate; 17 - Rear shell plate; 18 - Upper shell plate; 19 - Bottom shell plate. Detailed implementation mode

[0041] In order to make the technical means, objectives and effects of the present utility model easy to understand, the embodiments of the present utility model will be described in detail below with reference to specific drawings.

[0042] It should be noted that all the terms for indicating directionality and positional indication in the present utility model, such as: "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "bottom", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection situation between components in a certain specific state (as shown in the drawings), and are only for the convenience of describing the present utility model, rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features.

[0043] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0045] As Figures 1 to 14 shown, the present application discloses a driving structure of a microwave stirrer, including:

[0046] A motor device 2 for providing power for the rotation of the microwave stirrer 1;

[0047] A heat-insulating connecting rod 3, one end of which is connected to the rotating shaft of the motor device 2, and the other end is detachably and fixedly connected to the microwave stirrer 1.

[0048] For the driving structure of the microwave stirrer disclosed in the present application, the motor device 2 is used as a power source, and rotational power is output through its rotating shaft. The heat-insulating connecting rod 3 is used as a transmission component for power transmission. One end is firmly connected to the rotating shaft of the motor device 2 to ensure the effective transmission of power, and the other end is detachably and fixedly connected to the microwave stirrer 1. Therefore, the heat-insulating connecting rod 3 not only undertakes the function of power transmission, but also effectively isolates the heat conduction between the motor device 2 and the microwave stirrer 1 through its heat-insulating property, reducing the influence of heat on the motor device during the heating process, and improving the operating efficiency and stability of the motor.

[0049] For the driving structure of the microwave stirrer described in the present application, due to the heat-insulating effect of the heat-insulating connecting rod 3, the motor device 2 is not easily affected by high temperature during operation, thereby reducing heat loss and the risk of overheating, improving the operating efficiency and service life of the motor, ensuring the smooth rotation of the microwave stirrer 1, and further making the distribution of microwaves in the microwave oven cavity more uniform.

[0050] As a preferred example of the present application, a coupler 4 is provided at the end of the heat-insulating connecting rod 3 away from the motor device 2. The coupler 4 is fixedly connected to the microwave stirrer 1 in a plug-in fit. A connecting shaft sleeve 5 is provided outside the coupler 4. The coupler 4 can rotate relative to the connecting shaft sleeve 5 under the driving action of the heat-insulating connecting rod 3. The connecting shaft sleeve 5 is fixed on the upper surface of the furnace cavity bottom plate 11 and can support the microwave stirrer 1. In the example of the present application, the plug-in fit between the coupler 4 and the microwave stirrer 1 ensures a firm connection between the two, preventing the microwave stirrer 1 from loosening or falling off during operation. At the same time, the connecting shaft sleeve 5 is fixed on the furnace cavity bottom plate 11, providing stable support for the microwave stirrer 1, enhancing its stability during operation, enabling the microwave stirrer 1 to rotate flexibly under the drive of the heat-insulating connecting rod 3, contributing to the uniform distribution of microwaves in the microwave oven cavity, and improving the heating effect.

[0051] As a preferred example of the present application, the heat-insulating connecting rod 3 includes:

[0052] A first connecting portion 301, at the end of which a first plug hole 304 is provided for connecting the rotating shaft of the motor device 2;

[0053] A second connecting portion 302, which can extend into the coupler 4 and drive it to rotate integrally.

[0054] Specifically, in the example of the present application, the first connecting portion 301 is integrally cylindrical, and a first plug hole 304 is provided at its lower end. The rotating shaft of the motor device 2 is inserted into the first plug hole 304 and can be fixed relative to it. The second connecting portion 302 is provided above the first connecting portion 301. The second connecting portion 302 can be inserted into the second plug hole 406 at the lower end of the coupler 4 and can be fixed relative to it, thereby realizing the integral rotation of the rotating shaft of the motor device 2, the heat-insulating connecting rod 3, the coupler 4, and the microwave stirrer 1. This setting discloses a specific connection and transmission structure of the heat-insulating connecting rod 3, ensuring the effective transmission of power. At the same time, the integral rotation of the heat-insulating connecting rod 3 and the microwave stirrer 1 is realized, thereby simplifying the assembly process and improving the stability and rotation efficiency of the overall structure.

[0055] As a preferred example of the present application, the cross-sectional area of the first connecting portion 301 is larger than that of the second connecting portion 302. A first limiting boss 303 is provided on the outer surface of the first connecting portion 301, and the first limiting boss 303 is used for limiting during the installation of the heat insulation connecting rod 3. In the example of the present application, the outer contour of the cross-sectional area of the first connecting portion 301 is circular, and the outer contour of the cross-sectional area of the second connecting portion 302 is oblong. The first insertion hole 304 opened at the end of the first connecting portion 301 is also designed to be oblong, so that when the rotating shaft of the motor device 2 is inserted into the first insertion hole 304 and the second connecting portion 302 is inserted into the second insertion hole 406 at the lower end of the coupler 4 for assembly and transmission connection, even if there are slight deviations, they can be smoothly inserted, improving the assembly compatibility and transmission stability.

[0056] Through the optimized design of the shape and size structure, the stability of the structure is enhanced, ensuring long-term stable operation. At the same time, the stress distribution is optimized, reducing the stress concentration phenomenon and extending the service life. The setting of the first limiting boss 303 simplifies the installation process and improves the installation efficiency and accuracy.

[0057] As a preferred example of the present application, the coupler 4 includes a coupling main body 401. A first insertion flange 402 is provided at the upper end of the coupling main body 401. An inwardly retracted first step limiting portion 403 is formed at the connection between the coupling main body 401 and the first insertion flange 402. The first insertion flange 402 is inserted into the central hole of the microwave stirrer 1 for mating and fixing, and the first step limiting portion 403 abuts against the lower surface of the microwave stirrer 1. This setting discloses a specific structure for connecting the coupler 4 and the microwave stirrer 1. Inserting the first insertion flange 402 into the central hole of the microwave stirrer 1 for mating and fixing ensures a tight connection between the two, effectively preventing loosening or falling off. At the same time, the inwardly retracted first step limiting portion 403 formed at the connection between the coupling main body 401 and the first insertion flange 402 effectively abuts against the lower surface of the microwave stirrer 1, not only playing a limiting role but also further enhancing the connection stability, thus achieving the technical effects of simplifying the assembly process and improving production efficiency.

[0058] In the example of the present application, the outer contour of the coupling main body 401 is integrally circular. A first receiving hole 405 is provided inside the first insertion flange 402, and the first receiving hole 405 extends into the interior of the coupling main body 401 and communicates with the second insertion hole 406 opened at the lower end of the coupling main body 401. The above design enables the upper end of the second connecting portion 302 to extend into the second insertion hole 406 for limiting and then into the first receiving hole 405 for receiving and limiting, greatly enhancing the transmission stability and assembly convenience, realizing an efficient and stable connection between the heat insulation connecting rod and the microwave stirrer, and significantly improving the compactness and transmission stability of the overall structure.

[0059] As a preferred example of the present application, a second limiting boss 404 is provided on the outer side of the coupling body 401. The second limiting boss 404 is used to axially limit and fix the coupler 4 and the connecting bushing 5. During use, the upper end of the coupler 4 is connected to the microwave stirrer 1 through the first plugging flange 402. A second limiting boss 404 is provided at a position near the middle on the outer side of the coupling body 401. The second limiting boss 404 is arranged on the lower surface of the connecting bushing 5. The connecting bushing 5 is detachably fixed to the furnace cavity bottom plate 11, so as to realize the axial limiting and fixing of the coupler 4 and the connecting bushing 5, further enhancing the overall stability, with a compact structure and convenient installation and maintenance.

[0060] As a preferred example of the present application, the connecting bushing 5 includes a bushing plate 501. A third limiting flange 502 is provided on the bushing plate 501. The third limiting flange 502 is used to accommodate and support the coupling body 401 of the limiting coupler 4 and the microwave stirrer 1. A first connecting plate 503 and a first plugging block 505 are respectively arranged on opposite sides of the bushing plate 501. The first plugging block 505 is plugged and positioned with the furnace cavity bottom plate 11, and the first connecting plate 503 is screwed to the furnace cavity bottom plate 11. In the example of the present application, a fifth connecting hole 504 is provided on the first connecting plate 503, and the first connecting plate 503 is screwed to the furnace cavity bottom plate 11 by a connecting screw passing through the fifth connecting hole 504. An anti-fooling flat plate 506 is provided on the side of the bushing plate 501 away from the first connecting plate 503. The first plugging block 505 is arranged on the lower surface of the first connecting plate 503 and extends out of the anti-fooling flat plate 506, so as to realize the quick plugging and positioning during the installation of the connecting bushing 5 and the furnace cavity bottom plate 11.

[0061] This setting discloses a specific structure of the connecting bushing 5. Through the ingeniously designed third limiting flange 502, the stable limiting of the coupler 4 is ensured and the microwave stirrer 1 is supported, improving the stability of the overall structure. At the same time, the screw fixing and plugging positioning design of the connecting bushing 5 and the furnace cavity bottom plate 11 simplifies the installation process and realizes fast and accurate assembly. In addition, the setting of the anti-fooling flat plate 506 and the first plugging block 505 effectively prevents installation errors and further ensures the stable installation of the connecting bushing, thus realizing the efficient and stable connection among the microwave stirrer 1, the coupler 4 and the connecting bushing 5. Preferably, a first positioning block 507 is provided on the lower surface of the first connecting plate 503, and the first positioning block 507 is positioned and assembled with a corresponding positioning slot or inner edge on the furnace cavity bottom plate 11.

[0062] As a preferred example of the present application, a partition 6 is provided below the furnace chamber bottom plate 11. An electric motor mounting plate 601 is provided on the partition 6, and an electric motor fixing part 602 is provided on the electric motor mounting plate 601. Correspondingly, the electric motor device 2 includes an electric motor main body 201 and an electric motor connecting part 202. The electric motor connecting part 202 is detachably and fixedly connected to the electric motor fixing part 602. A second connection hole 603 is provided on the electric motor mounting plate 601, and the second connection hole 603 is used to screw-connect the electric motor mounting plate 601 to the waveguide box 7. In the example of the present application, by providing the partition 6 below the furnace chamber bottom plate 11 and providing the electric motor mounting plate 601 on the partition 6, a stable mounting platform is provided for the electric motor device 2. The electric motor fixing part 602 on the electric motor mounting plate 601 is detachably and fixedly connected to the electric motor connecting part 202 of the electric motor device 2, which not only facilitates the installation and disassembly of the electric motor device 2, but also ensures the firm connection between the electric motor device 2 and the microwave oven structure. At the same time, the second connection hole 603 on the electric motor mounting plate 601 is used to screw-connect to the waveguide box 7, further enhancing the stability of the electric motor mounting plate 601, effectively preventing the up and down movement of the electric motor shaft, and further improving the overall structural performance and operation reliability of the microwave oven.

[0063] In the example of the present application, the electric motor fixing part 602 includes a first insertion post 6021 and a first connection hole 6022. Correspondingly, the electric motor connecting part 202 includes a third connection hole 2021 and a fourth connection hole 2022. The first insertion post 6021 is inserted and fixed to one of the third connection hole 2021 and the fourth connection hole 2022, and the first connection hole 6022 is screwed and fixed to the other of the third connection hole 2021 and the fourth connection hole 2022. This setting realizes the rapid fixation of the electric motor device 2 by combining insertion and screw fixation, ensures the firm connection between the electric motor device 2 and the electric motor mounting plate 601, simplifies the installation process, improves the assembly efficiency, and ensures the stability and reliability of the electric motor device 2 during operation.

[0064] As a preferred example of the present application, two electric motor fixing parts 602 are provided, and the two electric motor fixing parts 602 are connected by a connecting boss 604. The connecting boss 604 is provided on the lower surface of the electric motor mounting plate 601. This design effectively avoids the direct contact between the electric motor device 2 and the electric motor mounting plate 601, thereby reducing the friction and wear during operation and prolonging the service life of the electric motor. At the same time, the setting of the connecting boss 604 also enhances the structural strength between the electric motor fixing parts 602 and improves the stability of the electric motor device 2 on the electric motor mounting plate 601.

[0065] As a preferred example of the present application, the lower end of the partition plate 6 is screwed to the flanges at the lower ends of the front furnace chamber plate 9 and / or the rear furnace chamber plate 8 of the furnace chamber assembly 400. As a specific example of the present application, a front furnace chamber plate 9 is provided at the front end of the furnace chamber assembly 400, and a second flange 901 bent inward is provided at the lower end of the front furnace chamber plate 9. A rear furnace chamber plate 8 is provided at the rear end of the furnace chamber assembly 400, and a first flange 801 bent inward is provided at the lower end of the rear furnace chamber plate 8. The lower end of the partition plate 6 is fixed to the first flange 801 and the second flange 901 by first connecting screws 10 respectively. This setting enables the partition plate 6 and the furnace chamber assembly 400 to be detachably fixed by the first connecting screws 10, realizes a firm connection between the partition plate 6 and the furnace chamber assembly 400, enhances the overall structural strength of the microwave oven, ensures the stable position of the partition plate in the microwave oven, effectively prevents it from loosening or displacing during operation, enhances its supporting and protecting effects on internal components such as the motor device 2, and improves the structural performance of the microwave oven.

[0066] The present application also discloses a portable microwave oven, on which a microwave stirrer driving structure as described in the above embodiment is provided.

[0067] As a specific example of the present application, the portable microwave oven includes a filter screen assembly 100, a housing assembly 200, a door cover assembly 300, and a furnace chamber assembly 400. Among them, the furnace chamber assembly 400 is arranged inside the housing assembly 200. A lower bottom plate 14 is arranged below the furnace chamber bottom plate 11. An electrical chamber for installing a frequency conversion device 12 and a magnetron device 13 is formed between the front furnace chamber plate 9, the rear furnace chamber plate 8 and the left housing plate 15, the right housing plate 16, the furnace chamber bottom plate 11, and the lower bottom plate 14 of the housing assembly 200. A partition plate 6 arranged below the furnace chamber bottom plate 11 divides it into two independent chambers. A filter screen assembly 100 is arranged on the front side of the electrical chamber. The filter screen assembly 100 is detachably fixed to the front furnace chamber plate 9. A door cover assembly 300 is arranged above the filter screen assembly 100. The door cover assembly 300 can cover the front opening of the furnace chamber assembly 400.

[0068] As a specific example of the present application, the housing assembly 200 further includes an upper housing plate 18, a bottom housing plate 19, and a rear housing plate 17. The upper housing plate 18, the bottom housing plate 19, the left housing plate 15, the right housing plate 16, and the rear housing plate 17 form the housing assembly 200 of the portable microwave oven with a front opening. A front bracket is arranged on the front side of the furnace chamber assembly 400 for installing and fixing the door cover assembly 300.

[0069] The portable microwave oven described in this application realizes an efficient and stable connection between the motor device 2 and the microwave stirrer 1 through a cleverly designed driving structure of the microwave stirrer. At the same time, the heat conduction between the motor device 2 and the microwave stirrer 1 is effectively isolated by the heat insulation connecting rod 3, improving the operating efficiency and stability of the motor. In addition, through the stable combination of the motor mounting plate 601 and the partition plate 6, and the insertion and screw fixation design of the motor fixing part 602 and the motor connecting part 202, the up-and-down movement of the motor shaft is effectively prevented, further enhancing the overall structural performance and operating reliability of the microwave oven. The overall structural design is compact and reasonable, which not only reduces the product volume but also facilitates carrying.

[0070] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A microwave stirrer driving structure, characterized in that: include: A motor device (2) for providing power for the rotation of the microwave stirrer (1); A heat-insulating connecting rod (3) has one end connected to the rotating shaft of the motor device (2) and the other end detachably fixedly connected to the microwave stirrer (1).

2. The microwave stirrer driving structure according to claim 1, characterized in that: A connector (4) is arranged at the end of the heat-insulating connecting rod (3) away from the motor device (2); the connector (4) is plug-fitted and fixed to the microwave stirrer (1); a connecting shaft sleeve (5) is arranged on the outer side of the connector (4); the connector (4) can rotate relative to the connecting shaft sleeve (5) under the driving action of the heat-insulating connecting rod (3); the connecting shaft sleeve (5) is fixed on the upper surface of the furnace cavity bottom plate (11) and can support the microwave stirrer (1).

3. The microwave stirrer driving structure according to claim 2, characterized in that: The heat-insulating connecting rod (3) comprises: A first connecting portion (301) having a first plug hole (304) at its end for connecting to a rotating shaft of a motor device (2); The second connecting portion (302) can extend into the connector (4) and drive the connector to rotate integrally therewith.

4. The microwave stirrer driving structure according to claim 3, characterized in that: The first connecting portion (301) is generally cylindrical in shape, and a first plug hole (304) is provided at its lower end. The rotating shaft of the motor device (2) is inserted into the first plug hole (304) and can be fixed relative to it. The second connecting portion (302) is provided above the first connecting portion (301), and the second connecting portion (302) can be inserted into the second plug hole (406) at the lower end of the connector (4) and can be fixed relative to it, thereby realizing the integrated rotation of the rotating shaft of the motor device (2), the heat-insulating connecting rod (3), the connector (4), and the microwave stirrer (1).

5. The microwave stirrer driving structure according to claim 2, characterized in that: The connector (4) comprises a connecting body (401), a first plug-in flange (402) is arranged at the upper end of the connecting body (401), and a retracted first step limit portion (403) is formed at the connection between the connecting body (401) and the first plug-in flange (402), the first plug-in flange (402) is inserted into the center hole of the microwave stirrer (1) for fitting and fixing, and the first step limit portion (403) abuts against the lower surface of the microwave stirrer (1).

6. The microwave stirrer driving structure according to claim 5, characterized in that: A second limiting boss (404) is provided on the outer side of the coupling body (401), and the second limiting boss (404) is used to limit and fix the coupling (4) and the connecting sleeve (5) in the axial direction.

7. The microwave stirrer driving structure according to claim 2, characterized in that: The connecting shaft sleeve (5) comprises a shaft sleeve plate (501), on which a third limiting flange (502) is arranged, and the third limiting flange (502) is used to accommodate a connecting body (401) of a limiting connector (4) and support the microwave stirrer (1), and a first connecting plate (503) and a first plug-in block (505) are respectively arranged on opposite sides of the shaft sleeve plate (501), the first plug-in block (505) is plugged and positioned with a furnace cavity bottom plate (11), and the first connecting plate (503) is fixed to the furnace cavity bottom plate (11) by screws.

8. The microwave stirrer driving structure according to any one of claims 2 to 7, characterized in that: A partition (6) is arranged below the furnace cavity bottom plate (11), a motor mounting plate (601) is arranged on the partition (6), and a motor fixing portion (602) is arranged on the motor mounting plate (601). Correspondingly, the motor device (2) comprises a motor body (201) and a motor connecting portion (202), the motor connecting portion (202) and the motor fixing portion (602) are detachably fixedly connected, and a second connecting hole (603) is arranged on the motor mounting plate (601), and the second connecting hole (603) is used to screw the motor mounting plate (601) to the waveguide box (7).

9. The microwave stirrer driving structure according to claim 8, characterized in that: The lower end of the partition plate (6) is connected to the flanging screws at the lower end of the furnace cavity front plate (9) and / or the furnace cavity rear plate (8) of the furnace cavity assembly (400).

10. A portable microwave oven, characterized in that: The portable microwave oven is provided with a microwave stirrer driving structure as claimed in any one of claims 1 to 9.

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