Sealing structure and micro-steaming oven

Abstract

The invention discloses a sealing structure and a micro-steaming oven, which comprise a sealing element and an isolation element for isolating the sealing element from the surface of a cavity, the end, close to the cavity, of the isolation piece is connected with the surface of the cavity in a sealed mode, the end, away from the cavity, of the isolation piece is connected with the fan baffle in a sealed mode through the sealing piece, and the fan shaft sequentially penetrates through the fan baffle and the isolation piece to stretch into the cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of microwave ovens, and in particular to a sealing structure and a microwave oven. Background Art

[0002] In order to avoid steam leakage from the microwave oven, the fan baffle and the rear cover of the inner tank need to be connected through a seal (rubber ring). However, since the seal is in a high-temperature baking environment for a long time, it will age and crack.

[0003] According to the prior art, there is a steamer, oven and microwave oven all-in-one, with publication number CN211795854U, in which the outer edge of the edge of the hot air blower baffle is bent toward the back plate to form a baffle, and the baffle and the back plate abut against each other to form an annular mounting cavity, in which a first sealing member is installed, and in which an annular water flow channel arranged circumferentially along the first sealing member is formed, and by injecting cold water into the annular water flow channel, the first sealing member can be cooled, and the sealing member is cooled by water cooling to prevent aging, and the structure is complex and the cost is high. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the above prior art and provide a sealing structure and a microwave oven with simple structure and low cost.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a sealing structure, including a sealing member, which also includes an isolating member for isolating the sealing member from the surface of the cavity; one end of the isolating member near the cavity is sealedly connected to the surface of the cavity, and the end of the isolating member away from the cavity is sealedly connected to the fan baffle through the sealing member, and the fan shaft passes through the fan baffle and the isolating member in turn and extends into the cavity.

[0006] After adopting the above structure, the present invention has the following advantages compared with the prior art: an isolation member is provided on the cavity, and the cavity surface and the sealing member are isolated by the isolation member, so that the sealing member does not directly contact the cavity surface, so that the high temperature inside the cavity will not be directly transmitted to the sealing member, and the sealing member will not age or crack. Setting an isolation member can prevent the aging and cracking of the sealing member, and the structure is simple and the cost is low.

[0007] Preferably, one end of the isolating member away from the cavity extends out of the cavity to ensure that the sealing member maintains a certain distance from the cavity surface. More heat will be lost in the process of the temperature of the cavity surface being transferred to the sealing member, thereby achieving high reliability.

[0008] Preferably, a surface of the isolating member at one end away from the cavity is provided with an annular mounting groove for mounting a sealing member, so as to facilitate the installation of the sealing member.

[0009] Preferably, the annular mounting groove is formed by bending the outer circumference of the isolation member upwards to facilitate processing.

[0010] Preferably, the isolation member is detachably connected to the fan baffle to facilitate installation and disassembly.

[0011] Preferably, the portion of the isolating member corresponding to the annular mounting groove protrudes from the outer side of the isolating member, so that the bolts can pass downward through the fan baffle and the isolating member in sequence, thereby facilitating installation and disassembly.

[0012] Preferably, the surface of the fan baffle near one end of the isolation piece is provided with an annular positioning groove corresponding to the annular mounting groove; when the fan baffle is fixed together with the isolation piece, the outer side surface of the isolation piece is located in the annular positioning groove, positioning the fan baffle to facilitate the installation of the fan baffle on the isolation piece.

[0013] Preferably, at least one annular protrusion is provided on the upper surface and / or the bottom surface of the sealing member, and the annular protrusion is in contact with the surface, which makes sealing easier and has a good sealing effect.

[0014] A microwave oven comprises any of the sealing structures described above, and also comprises a cavity and a fan baffle, wherein the isolation member is arranged between the cavity and the fan baffle, and the sealing member is arranged at one end of the isolation member away from the cavity.

[0015] Preferably, one end of the isolation member near the cavity is sealed with the cavity to prevent steam from leaking from a gap between the isolation member and the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top sectional view of the sealing structure of the present invention applied to a microwave oven.

[0017] Figure 2 yes Figure 1 A is an enlarged schematic diagram.

[0018] Figure 3 It is a three-dimensional diagram of the sealing structure isolation member of the present invention.

[0019] Figure 4 It is a front view of the connection between the fan baffle, the seal and the isolation member of the sealing structure of the present invention.

[0020] Figure 5 yes Figure 4 A magnified schematic diagram of B.

[0021] Figure 6 It is a three-dimensional diagram of the sealing member of the sealing structure of the present invention.

[0022] Figure 7 It is a stereoscopic diagram of the sealing structure of the present invention applied to the cavity of a microwave oven.

[0023] Among them, 1. sealing member, 110. annular protrusion, 2. cavity, 210. limiting groove, 220. ventilation hole, 3. isolating member, 310. annular mounting groove, 4. fan baffle, 410. annular positioning groove. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Figure 1 FIG. 1 is a top cross-sectional view of the sealing structure of the present invention applied to a microwave oven, as shown in FIG. Figure 1 In the illustrated embodiment, the present invention provides a sealing structure, including a sealing member 1, a cavity 2 and a fan baffle 4, wherein the sealing member 1 is used to achieve sealing between the outer surface of the cavity 2 and the fan baffle 4. Specifically, in order to prevent the sealing member 1 from aging and cracking, an isolating member 3 is provided to separate the sealing member 1 from the outer surface of the cavity 2 so that the sealing member 1 does not directly contact the outer surface of the cavity 2. One end of the isolating member 3 close to the cavity 2 is sealedly connected to the outer surface of the cavity 2, and one end of the isolating member 3 away from the cavity 2 is sealedly connected to the fan baffle 4 through the sealing member 1, with a simple structure and low cost. The fan is mounted on the fan baffle 4, and the fan shaft of the fan passes through the fan baffle 4 and the isolating member 3 in sequence and extends into the cavity 2.

[0026] The isolation member 3 can be a blocking member used to block between the seal 1 and the cavity 2, the seal 1 is installed on the surface of the blocking member away from the cavity 2, the blocking member has a hole for the fan shaft, that is, the blocking member has a hole for the fan shaft, and the seal 1 is arranged at any position on the surface of the blocking member away from the cavity 2; it can also be a suspended bracket used to suspend the seal 1, the suspended bracket is hollow and penetrated from top to bottom, the seal 1 is suspended outside the cavity 2, and the seal 1 is installed at a position of the suspended bracket away from the cavity 2, that is, the suspended bracket is a hollow bracket that penetrates from top to bottom, and the seal 1 is installed on the outer circumference of one end of the suspended bracket away from the cavity 2.

[0027] Specifically, the sealing member 1 is a rubber sealing ring.

[0028] Figure 2 yes Figure 1 The enlarged schematic diagram of A in FIG. Figure 2 In the embodiment shown, one end of the isolation member 3 away from the cavity 2 extends out of the cavity 2, ensuring that the seal 1 maintains a certain distance from the outer surface of the cavity 2. In the process of the temperature of the outer surface of the cavity 2 being transferred to the seal 1, more heat will be lost, so that the heat transferred to the isolation member 3 will be less, and then the heat of the isolation member 3 will be transferred to the seal 1 even less, the seal 1 will not age and crack, and the reliability is high.

[0029] The following takes a suspended bracket as an example.

[0030] Figure 3: is a three-dimensional diagram of the sealing structure isolation member of the present invention, such as Figure 3 In the embodiment shown, the isolating member 3 is a suspended bracket. In order to facilitate the installation of the sealing member 1, the surface of the isolating member 3 away from the cavity 2 is provided with an annular installation groove 310 for installing the sealing member 1. When installing, the outer side of the sealing member 1 abuts against the inner side wall of the annular installation groove 310 to achieve the positioning of the sealing member 1, which is convenient for installation. Specifically, the annular installation groove 310 is formed by bending the outer circumference of the isolating member 3 upward, which is convenient for processing.

[0031] Figure 4 1 is a front view of the connection between the fan baffle, the seal and the isolation member of the sealing structure of the present invention, as shown in FIG. Figure 4 In the illustrated embodiment, the isolating member 3 is detachably connected to the fan baffle 4. Specifically, the isolating member 3 is connected to the fan baffle 4 by bolts, so that the sealing member 1 can be compressed to ensure the sealing effect between the isolating member 3 and the fan baffle 4, and prevent steam from leaking from the gap between the isolating member 3 and the fan baffle 4.

[0032] As an example, combining Figure 3 and Figure 4 The portion of the isolating member 3 corresponding to the annular mounting groove 310 protrudes from the outer side of the isolating member 3, so that there is enough space below the annular mounting groove 310, which is convenient for the bolts to pass downward through the fan baffle 4 and the isolating member 3 in sequence, making installation and disassembly convenient.

[0033] Figure 5 yes Figure 4 The enlarged schematic diagram of B is shown in FIG. Figure 5 In the illustrated embodiment, in order to facilitate the installation of the fan baffle 4 on the isolation member 3, an annular positioning groove 410 corresponding to the annular mounting groove 310 is provided on the surface of the fan baffle 4 near one end of the isolation member 3; when the fan baffle 4 and the isolation member 3 are fixed together, the outer side surface of the isolation member 3 is located in the annular positioning groove 410, and the fan baffle 4 is positioned to facilitate the installation of the fan baffle 4 on the isolation member 3.

[0034] Figure 6 : is a three-dimensional diagram of the sealing structure seal of the present invention, such as Figure 6In the illustrated embodiment, at least one annular protrusion 110 is provided on the upper surface and / or the bottom surface of the seal 1, and the center of the annular protrusion 110 is located on the axis of the seal 1. When the annular protrusion 110 is provided on the upper surface of the seal 1, the bottom surface of the fan baffle 4 and the annular protrusion 110 are pressed against each other, and the annular protrusion 110 will be pressed against the fan baffle 4. The contact between the annular protrusion 110 and the surface is equivalent to a line seal. The sealing surface of the line seal surface is much smaller than that of the surface seal, which is easier to achieve and has a good sealing effect. When the annular protrusion 110 is provided on the bottom surface of the seal 1, the annular protrusion 110 is pressed against the bottom surface of the annular mounting groove 310, which is also a line seal with a good sealing effect. Therefore, when at least one annular protrusion 110 is provided on both the upper surface and the bottom surface of the seal 1, the sealing effect is good.

[0035] Specifically, the number of the annular protrusions 110 is two, and the sealing effect is better.

[0036] like Figure 1 and 2 A microwave oven comprises the sealing structure described in any one of the above items, and further comprises a cavity 2 and a fan baffle 4, an isolating member 3 is arranged between the cavity 2 and the fan baffle 4, and a sealing member 1 is arranged at one end of the isolating member 3 away from the cavity 2.

[0037] Figure 7 : is a three-dimensional diagram of the sealing structure of the present invention applied to the cavity of a microwave oven, such as Figure 7 In the illustrated embodiment, one end of the isolating member 3 near the cavity 2 is sealed and connected to the outer surface of the cavity 2 to prevent steam from leaking from the gap between the isolating member 3 and the cavity 2. Specifically, one end of the isolating member 3 near the cavity 2 is welded and sealed to the outer surface of the cavity 2, or one end of the isolating member 3 near the cavity 2 is integral with the outer surface of the cavity 2.

[0038] As an embodiment, a limiting groove 210 is provided on the surface of the cavity 2, and one end of the isolating member 3 near the cavity 2 is sealed and connected to the bottom of the limiting groove 210, so as to limit the isolating member 3 and facilitate the installation of the isolating member 3. Specifically, the limiting groove 210 is located at the outer circumference of the ventilation hole 220 (air inlet or air outlet), and the ventilation hole 220 is used to install the fan.

[0039] Specifically, the principle of the present invention is to provide an isolation member 3 on the cavity 2, and use the isolation member 3 to isolate the surface of the cavity 2 and the seal 1, so that the seal 1 does not directly contact the surface of the cavity 2. In this way, the high temperature inside the cavity 2 will not be directly transmitted to the seal 1, and the seal 1 will not age or crack. Providing an isolation member 3 can prevent the aging and cracking of the seal 1, and the structure is simple and the cost is low.

[0040] Based on the above scheme, if various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A sealing structure, comprising a sealing member (1), characterized in that: It also includes an isolating member (3) for isolating the sealing member (1) from the surface of the cavity (2); one end of the isolating member (3) close to the cavity (2) is sealedly connected to the surface of the cavity (2), and one end of the isolating member (3) away from the cavity (2) is sealedly connected to the fan baffle (4) through the sealing member (1); the fan shaft passes through the fan baffle (4) and the isolating member (3) in sequence and extends into the cavity (2).

2. The sealing structure according to claim 1, characterized in that: One end of the isolation piece (3) away from the cavity (2) extends out of the cavity (2).

3. The sealing structure according to claim 1, characterized in that: An annular mounting groove (310) for mounting the sealing member (1) is provided on the surface of the end of the isolating member (3) away from the cavity (2).

4. The sealing structure according to claim 3, characterized in that: The annular mounting groove (310) is formed by bending the outer circumference of the isolation member (3) upward.

5. The sealing structure according to claim 3, characterized in that: The isolation member (3) and the fan baffle (4) are detachably connected.

6. The sealing structure according to claim 5, characterized in that: The portion of the isolating member (3) corresponding to the annular mounting groove (310) protrudes from the outer side surface of the isolating member (3).

7. The sealing structure according to claim 3, characterized in that: An annular positioning groove (410) corresponding to the annular mounting groove (310) is provided on the surface of the fan baffle (4) at one end near the isolation member (3); when the fan baffle (4) and the isolation member (3) are fixed together, the outer side surface of the isolation member (3) is located in the annular positioning groove (410).

8. The sealing structure according to claim 1, characterized in that: The upper surface and / or the bottom surface of the sealing element (1) is provided with at least one annular protrusion (110).

9. A microwave oven, comprising the sealing structure according to any one of claims 1 to 8, characterized in that: It also comprises a cavity (2) and a fan baffle (4), the isolation member (3) is arranged between the cavity (2) and the fan baffle (4), and the sealing member (1) is arranged at one end of the isolation member (3) away from the cavity (2).

10. The microwave oven according to claim 9, characterized in that: One end of the isolation member (3) close to the cavity (2) is sealed and connected to the cavity (2).

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