Microwave oven drain structure and microwave oven

Abstract

The utility model provides a kind of microwave oven drainage structure and microwave oven, the microwave oven drainage structure, including oven cavity, motor support, motor support is connected with the bottom wall of oven cavity, the bottom wall of oven cavity is provided installation protruding part, drainage chamber, the top of installation protruding part is provided mounting hole, the bottom surface of drainage chamber is provided outlet, motor support sets up waterproof protruding part, water receiving area, the top of waterproof protruding part is provided shaft hole, water receiving area sets up drain hole;In vertical direction, the horizontal plane where mounting hole is located is higher than the horizontal plane where outlet is located, outlet is located directly above water receiving area, the horizontal plane where shaft hole is located is higher than the horizontal plane where water receiving area is located, outlet and shaft hole are set apart between;The utility model is on the basis of realizing the normal drainage function of microwave oven, eliminates the situation that water and mounting hole, shaft hole, motor output shaft contact occurs, can effectively eliminate the risk that water in oven cavity penetrates motor and causes motor burnout.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a microwave oven drainage structure and a microwave oven. Background Technology

[0002] Microwave ovens have become an essential appliance in the kitchen. Due to safety regulations, the exhaust structure of traditional microwave ovens is not very smooth. After use, water will accumulate in the oven cavity (condensation formed in the oven cavity after heating food). The water will be discharged from the oven cavity after accumulating to a certain extent.

[0003] Traditional microwave ovens typically drain accumulated water to the motor bracket at the bottom of the oven cavity through a drive mechanism mounting hole. However, this design means that while water flows down through the drive mechanism mounting hole, some water often seeps along the motor output shaft into the top of the motor or even into the motor itself, causing damage.

[0004] To address this issue, existing technologies often involve adding a sponge seal between the motor and the motor bracket. However, under certain circumstances or after the seal has been in service for a long time, the sponge seal may still leak water or age and lose its sealing performance. This still cannot completely eliminate the risk of water seeping into the motor from the motor bracket and causing the motor to burn out. Utility Model Content

[0005] In view of this, the present invention aims to provide a microwave oven drainage structure and microwave oven to solve the problem that water easily seeps into the motor at the motor bracket during the drainage process of existing microwave ovens, causing the motor to burn out.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A microwave oven drainage structure includes an oven cavity and a motor bracket. The motor bracket is connected to the bottom wall of the oven cavity. The bottom wall of the oven cavity is provided with a mounting protrusion and a drainage chamber. The top of the mounting protrusion is provided with a mounting hole, and the bottom surface of the drainage chamber is provided with a water outlet. The motor bracket is provided with a water-proof protrusion and a water-receiving area. The top of the water-proof protrusion is provided with a shaft hole, and the water-receiving area is provided with a drainage hole. In the vertical direction, the horizontal plane where the mounting hole is located is higher than the horizontal plane where the drainage hole is located. The drainage hole is located directly above the water-receiving area, and the horizontal plane where the shaft hole is located is higher than the horizontal plane where the water-receiving area is located. The drainage hole and the shaft hole are staggered.

[0008] Furthermore, the bottom wall of the furnace cavity is provided with a water storage chamber structure, with the installation hole as the center, and the drainage chamber is arranged around the outside of the installation protrusion, and the water storage chamber structure is arranged around the outside of the drainage chamber.

[0009] Furthermore, the water storage chamber structure includes a first water storage chamber, a water-proof rib, and a second water storage chamber. Centered on the mounting hole, the second water storage chamber is arranged around the outside of the drainage chamber, the water-proof rib is arranged around the outside of the second water storage chamber, and the first water storage chamber is arranged around the outside of the water-proof rib.

[0010] Furthermore, the water receiving area is provided with a recessed area, the bottom surface of which is lower than the horizontal plane where the water receiving area is located, and the drain hole is provided on the bottom surface of the recessed area.

[0011] Furthermore, the drainage chamber is provided with at least one water outlet, and the water receiving area is provided with at least one baffle structure, the baffle structure enclosing at least one water-proof chamber in the water receiving area.

[0012] Furthermore, in the vertical projection, the projection of any one of the water outlet holes does not overlap with the projection of any one of the water-proof chambers.

[0013] Furthermore, the outer edge of the motor bracket is provided with an installation flange, and the motor bracket is connected to the bottom wall of the furnace cavity through the installation flange.

[0014] Furthermore, the microwave oven drainage structure also includes a bottom shell, the motor bracket is located above the bottom shell, the bottom shell is provided with an external drain hole, and the drain hole is connected to the external drain hole.

[0015] A microwave oven, including the aforementioned microwave oven drainage structure.

[0016] Compared with the prior art, the microwave oven drainage structure and microwave oven described in this utility model have the following advantages:

[0017] The present invention discloses a microwave oven drainage structure and microwave oven. On the one hand, a separate water outlet hole, different from the transmission mounting hole, is opened on the bottom wall of the oven cavity for dedicated drainage. The motor bracket is provided with a corresponding water receiving area to receive water flowing into the motor bracket from the oven cavity. The water is drained from the motor bracket to the bottom of the microwave oven through the drain hole of the water receiving area, realizing the normal drainage function of the microwave oven. This allows water to be discharged to the outside of the oven cavity in a timely manner and effectively avoids damage to the oven cavity caused by the rolling bracket of the microwave oven rubbing against the bottom of the oven cavity in the presence of condensed water (hot water at a still high temperature).

[0018] On the other hand, since the mounting hole is higher than the drain hole, water in the oven cavity will only flow to the motor bracket through the drain hole. At the same time, the motor bracket is equipped with a water-proof protrusion with a shaft hole on the top, which is assembled with the motor output shaft at a height significantly higher than the water receiving area. Furthermore, the drain hole and the shaft hole are misaligned, so that water in the oven cavity will not flow to the motor bracket through the mounting hole, and the water flowing into the motor bracket will not flow to the shaft hole, nor will it submerge the shaft hole, nor will it flow to the motor output shaft, nor will it flow along the motor output shaft. This eliminates the possibility of water coming into contact with the mounting hole, shaft hole, and motor output shaft, thus effectively preventing the risk of water in the oven cavity seeping into the motor and causing the motor to burn out during the microwave oven drainage process. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of a microwave oven according to an embodiment of the present utility model;

[0021] Figure 2 For the present utility model in Figure 1 From this perspective, a structural schematic diagram of the motor bracket is revealed;

[0022] Figure 3 For the present utility model in Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 This is a cross-sectional view (front view) of a microwave oven at the motor bracket according to an embodiment of the present invention.

[0024] Figure 5 This is a top view of the motor bracket described in an embodiment of the present utility model;

[0025] Figure 6 This is a bottom view of a microwave oven according to an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Furnace cavity; 2. First water storage chamber; 3. Water-proof rib; 4. Second water storage chamber; 5. Drainage chamber; 51. Water outlet; 6. Mounting protrusion; 7. Mounting hole; 8. Motor bracket; 81. Recessed area; 82. First baffle rib; 83. Second baffle rib; 84. Mounting flange; 9. Water-proof protrusion; 91. Shaft hole; 10. Drainage hole; 11. Water receiving area; 12. First water-proof chamber; 13. Motor; 14. Second water-proof chamber; 15. Bottom shell; 16. External drain hole. Detailed Implementation

[0028] The inventive concepts of this disclosure will be described below using terminology commonly used by those skilled in the art to convey the essence of their work to others skilled in the art. However, these inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments described herein.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] To address the problem in existing microwave ovens where water easily seeps into the motor bracket during drainage, causing motor burnout, this embodiment proposes a microwave oven drainage structure, as shown in the attached diagram. Figure 1-6 As shown, the microwave oven drainage structure includes a cavity 1 and a motor bracket 8 arranged sequentially from top to bottom. The motor bracket 8 is connected to the bottom wall of the cavity 1. The bottom wall of the cavity 1 is provided with a mounting protrusion 6 and a drainage chamber 5. The top of the mounting protrusion 6 is provided with a mounting hole 7 for mounting a transmission device (not shown) at the bottom of a conventional microwave oven cavity. The bottom surface of the drainage chamber 5 is provided with a water outlet 51. The motor bracket 8 is provided with a water-proof protrusion 9 and a water-receiving area 11. The top of the water-proof protrusion 9 is provided with a shaft hole 91 for assembling the output shaft of the microwave oven motor 13. The water-receiving area 11 is provided with a drainage hole 10. In the vertical direction, the horizontal plane where the mounting hole 7 is located is higher than the horizontal plane where the water outlet 51 is located. The water outlet 51 is located directly above the water-receiving area 11. The horizontal plane where the shaft hole 91 is located is higher than the horizontal plane where the water-receiving area 11 is located. The water outlet 51 and the shaft hole 91 are staggered (i.e., their vertical projections do not overlap).

[0032] This application improves the structure of the oven cavity 1 and the motor bracket 8. On the one hand, a separate water outlet 51, which is different from the transmission mounting hole 7, is opened on the bottom wall of the oven cavity 1 for dedicated drainage. The motor bracket 8 is provided with a corresponding water receiving area 11 to receive water flowing into the motor bracket 8 from the oven cavity 1. The water is drained from the motor bracket 8 to the bottom of the microwave oven through the drain hole 10 of the water receiving area 11. This realizes the normal drainage function of the microwave oven, so that the water can be discharged to the outside of the oven cavity 1 in time. It can also effectively prevent the microwave oven rolling bracket from rubbing against the bottom of the oven cavity 1 and causing damage to the oven cavity 1 in the case of condensed water (hot water at a still high temperature).

[0033] On the other hand, since the mounting hole 7 is higher than the water outlet hole 51, the water in the oven cavity 1 will only flow to the motor bracket 8 through the water outlet hole 51. At the same time, the motor bracket 8 is provided with a water-proof protrusion 9 with a shaft hole 91 on the top, which is assembled with the output shaft of the motor 13 at a height that is significantly higher than the water receiving area 11. The water outlet hole 51 and the shaft hole 91 are misaligned, so that the water in the oven cavity 1 will not flow to the motor bracket 8 through the mounting hole 7, and the water flowing into the motor bracket 8 will not flow to the shaft hole 91, nor will it submerge the shaft hole 91, nor will it flow to the output shaft of the motor 13, nor will it flow along the output shaft of the motor 13. This eliminates the possibility of water coming into contact with the mounting hole 7, the shaft hole 91, and the output shaft of the motor 13. Thus, during the microwave oven drainage process, the risk of water in the oven cavity seeping into the motor 13 and causing the motor 13 to burn out can be effectively prevented.

[0034] The bottom wall of the furnace cavity 1 is provided with a water storage chamber structure. With the mounting hole 7 as the center, the drainage chamber 5 is arranged around the outside of the mounting protrusion 6. The water storage chamber structure is arranged around the outside of the drainage chamber 5, so that the condensate in any direction in the furnace cavity 1 can flow into the water storage chamber structure and flow evenly from the water storage chamber structure into the drainage chamber 5.

[0035] Preferably, the water storage chamber structure includes a first water storage chamber 2, a water-blocking rib 3, and a second water storage chamber 4. Centered on the mounting hole 7, the second water storage chamber 4 is arranged around the outside of the drainage chamber 5, and the water-blocking rib 3 is arranged around the outside of the second water storage chamber 4. The first water storage chamber 2 is arranged around the outside of the water-blocking rib 3, thus forming two water storage chambers on the bottom wall of the furnace cavity 1, with the water-blocking rib 3 between the two water storage chambers. This allows condensate from any position in the furnace cavity 1 to first flow into the first water storage chamber 2 for collection. As the water level in the first water storage chamber 2 rises, the condensate overflows through the water-blocking rib 3 and flows into the second water storage chamber 4, and then flows evenly to the drainage chamber 5. Through the combination of the two water storage chambers and the water-blocking rib 3, the flow of water to the drainage chamber 5 can be buffered in a gradient manner in the special scenario of a large amount of condensate forming in a short period of time, avoiding excessive condensate from being blocked in the drainage chamber 5 in a short period of time. Correspondingly, this avoids the threat of excessively high water levels in the mounting hole 7.

[0036] Preferably, no structure is provided between the second water storage chamber 4 and the drainage chamber 5 to obstruct the flow of water; in the vertical direction, the bottom surface of the drainage chamber 5 is lower than the bottom surface of the second water storage chamber 4, so that the water flowing into the second water storage chamber 4 will flow towards the drainage chamber 5, and the second water storage chamber 4 will not accumulate too much water. In this application, the microwave oven rolling bracket is installed at the second water storage chamber 4, which can effectively prevent the microwave oven rolling bracket from rubbing against the bottom of the oven cavity 1 and causing damage to the oven cavity 1 in the case of condensed water (hot water at a still high temperature).

[0037] For the motor bracket 8, the water receiving area 11 is provided with a downwardly recessed area 81. The bottom surface of the recessed area 81 is lower than the horizontal plane where the water receiving area 11 is located. The drain hole 10 is set on the bottom surface of the recessed area 81, so that the water flowing into the water receiving area 11 will tend to flow towards the recessed area 81 and be discharged in time through the drain hole 10, which can effectively prevent water from accumulating in the water receiving area 11 and causing the water level to be too high.

[0038] Furthermore, the motor bracket 8 in this application is not only used to install the motor 13, but can also provide mounting positions for multiple functional components (such as sensors). Based on this, the drainage chamber 5 is provided with at least one water outlet 51, and the water receiving area 11 is provided with at least one baffle structure. The baffle structure encloses at least one water-proof chamber in the water receiving area 11. In the vertical projection, the projection of any one of the water outlets 51 and the projection of any one of the water-proof chambers do not overlap. The water-proof chamber can provide installation space for related components, and the water flowing into the water receiving area 11 is blocked by the baffle structure and will not flow into the water-proof chamber, ensuring the assembly environment of related components, especially the operational safety of electrical components.

[0039] With respect to this application Figure 5 For example, the water receiving area 11 can have two baffle structures, referred to as the first baffle 82 and the second baffle 83 respectively. The first baffle 82 encloses the first water-proof chamber 12 in the water receiving area 11, and the second baffle 83 encloses the second water-proof chamber 14 in the water receiving area 11. This structural form is only an example, and this application is not limited to this example. That is, this application can set one or more baffle structures. For any baffle structure, one water-proof chamber can be enclosed, or two or more water-proof chambers can be enclosed.

[0040] The outer edge of the motor bracket 8 is provided with a mounting flange 84, and the motor bracket 8 is connected to the bottom wall of the furnace cavity 1 through the mounting flange 84, so that the motor bracket 8 and the furnace cavity 1 can be assembled more firmly.

[0041] In addition, the microwave oven drainage structure also includes a bottom shell 15, with the motor bracket 8 located above the bottom shell 15. The bottom shell 15 is provided with an external drain hole 16, and the drain hole 10 communicates with the external drain hole 16 to drain water discharged from the drain hole 10 of the motor bracket 8 to the outside of the microwave oven. The connection between the drain hole 10 and the external drain hole 16 can be achieved through a flow guide structure or conventional piping. Alternatively, since the drain hole 10 is clearly located above the external drain hole 16, no additional components may be required, allowing the water flowing from the drain hole 10 to flow freely to the external drain hole 16.

[0042] This utility model further proposes a microwave oven, including the microwave oven drainage structure described in this application. Furthermore, the technical content proposed in this application can be adopted for any microwave oven. Based on the technical content provided in this application, the microwave oven also includes conventional components such as a door assembly, an electronic control assembly, and a magnetron. Since these conventional components are all prior art, they will not be described in detail here.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A microwave oven drainage structure, characterized in that, The microwave oven drainage structure includes an oven cavity (1) and a motor bracket (8). The motor bracket (8) is connected to the bottom wall of the oven cavity (1). The bottom wall of the oven cavity (1) is provided with a mounting protrusion (6) and a drainage chamber (5). The top of the mounting protrusion (6) is provided with a mounting hole (7). The bottom surface of the drainage chamber (5) is provided with a water outlet (51). The motor bracket (8) is provided with a water-proof protrusion (9) and a water receiving area (11). The top of the water-proof protrusion (9) is provided with a shaft hole (91). The water receiving area (11) is provided with a drainage hole (10). In the vertical direction, the horizontal plane where the mounting hole (7) is located is higher than the horizontal plane where the water outlet (51) is located. The water outlet (51) is located directly above the water receiving area (11). The horizontal plane where the shaft hole (91) is located is higher than the horizontal plane where the water receiving area (11) is located. The water outlet (51) and the shaft hole (91) are staggered.

2. The microwave oven drainage structure according to claim 1, characterized in that, The bottom wall of the furnace cavity (1) is provided with a water storage chamber structure. With the mounting hole (7) as the center, the drainage chamber (5) is arranged around the outside of the mounting protrusion (6), and the water storage chamber structure is arranged around the outside of the drainage chamber (5).

3. A microwave oven drainage structure according to claim 2, characterized in that, The water storage chamber structure includes a first water storage chamber (2), a water-proof rib (3), and a second water storage chamber (4). Centered on the mounting hole (7), the second water storage chamber (4) is arranged around the outside of the drainage chamber (5), the water-proof rib (3) is arranged around the outside of the second water storage chamber (4), and the first water storage chamber (2) is arranged around the outside of the water-proof rib (3).

4. The microwave oven drainage structure according to claim 1, characterized in that, The water receiving area (11) is provided with a recessed area (81), the bottom surface of the recessed area (81) is lower than the horizontal plane where the water receiving area (11) is located, and the drain hole (10) is provided on the bottom surface of the recessed area (81).

5. A microwave oven drainage structure according to claim 1, characterized in that, The drainage chamber (5) is provided with at least one water outlet (51), and the water receiving area (11) is provided with at least one baffle structure, which encloses at least one water-proof chamber in the water receiving area (11).

6. A microwave oven drainage structure according to claim 5, characterized in that, In the vertical projection, the projection of any one of the water outlets (51) does not overlap with the projection of any one of the water-proof chambers.

7. A microwave oven drainage structure according to claim 1, characterized in that, The outer edge of the motor bracket (8) is provided with an installation flange (84), and the motor bracket (8) is connected to the bottom wall of the furnace cavity (1) through the installation flange (84).

8. A microwave oven drainage structure according to claim 1, characterized in that, The microwave oven drainage structure also includes a bottom shell (15), the motor bracket (8) is located above the bottom shell (15), the bottom shell (15) is provided with an external drain hole (16), and the drain hole (10) is connected to the external drain hole (16).

9. A microwave oven, characterized in that, The microwave oven includes the microwave oven drainage structure as described in any one of claims 1-8.

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