A sealing structure and a range hood

Abstract

The utility model relates to kitchen appliance technical field, specifically disclose a sealing structure and range hood, sealing structure includes bottom shell, sealing cover and sealing ring, bottom shell is provided with the accommodation cavity with the open mouth, sealing cover is along the set direction cover set up in bottom shell and will open close, one of bottom shell and sealing cover two is provided with the locating plug, the other of bottom shell and sealing cover two is provided with the locating groove, the locating plug has elasticity, and the locating plug is along the set direction and inserts in the locating groove with interference, sealing ring is set up between bottom shell and sealing cover, and sealing ring is respectively with bottom shell and sealing cover and is pasted, because the direction of locating plug and locating groove and sealing cover cover set up in bottom shell are same with interference, thereby in the process of locating plug and locating groove alignment, do not affect the adjustment of sealing cover position, and when locating plug and locating groove alignment, sealing cover will also cover set up in the open mouth simultaneously with locating plug inserts in the locating groove, improve the installation efficiency of sealing cover.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a sealing structure and a range hood. Background Technology

[0002] With prolonged use, the electronic components of range hoods are susceptible to damage from water and oil. Therefore, the requirements for the waterproof and oil-proof performance of these components are becoming increasingly stringent. Currently, electronic components are typically encapsulated using a sealed structure. This sealed structure usually includes a bottom shell, a sealing cover, and a sealing ring positioned between the bottom shell and the sealing cover. The bottom shell and the sealing cover together form a cavity for housing the electronic components.

[0003] To ensure stable sealing performance, related technologies typically use screws to sequentially pass through the sealing cover, sealing ring, and connect to the base shell, ensuring a reliable fit between the sealing ring, base shell, and sealing cover. However, when maintenance of electronic components is required, the screws need to be removed and reinstalled, resulting in low efficiency in disassembling and assembling the sealing cover. To address this, related technologies propose setting multiple positioning holes evenly distributed circumferentially on the side of the base shell, and setting multiple elastic positioning elements evenly distributed circumferentially on the side of the sealing cover. These elastic positioning elements are then inserted one-to-one with the positioning holes to ensure a stable fit between the base shell and the sealing cover, thus avoiding the use of screws. However, in this solution, since the elastic positioning elements and positioning holes are all distributed on the circumference, when installing the sealing cover onto the base shell, it is necessary to continuously adjust the relative position of the sealing cover and the base shell along the direction of engagement to ensure that the multiple elastic positioning elements and positioning holes are simultaneously aligned one-to-one, resulting in still low installation efficiency for the sealing cover. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing structure and a range hood to further improve the installation efficiency of the sealing cover in the existing sealing structure.

[0005] On the one hand, this utility model provides a sealing structure, which includes:

[0006] The bottom shell has an open receiving cavity for accommodating electronic components;

[0007] A sealing cap is placed on the bottom shell along a predetermined direction and closes the opening. One of the bottom shell and the sealing cap is provided with a positioning plug, and the other of the bottom shell and the sealing cap is provided with a positioning groove. The positioning plug is elastic and is interference-fitted into the positioning groove along the predetermined direction.

[0008] A sealing ring is disposed between the bottom shell and the sealing cover, and the sealing ring is respectively attached to the bottom shell and the sealing cover.

[0009] As a preferred technical solution for the sealing structure, when the positioning plug is provided on the sealing cover and the positioning groove is provided on the bottom shell:

[0010] The bottom shell includes a bottom shell body and a plurality of mounting seats connected to the bottom shell body. The accommodating cavity is disposed in the bottom shell body, and the plurality of mounting seats are all located in the accommodating cavity. The plurality of mounting seats are all used to fix the electronic components, and each mounting seat is provided with the positioning groove.

[0011] The sealing cover is provided with a plurality of positioning plugs, and the plurality of positioning plugs are inserted into the positioning grooves on the plurality of mounting bases in a one-to-one correspondence.

[0012] As a preferred technical solution for the sealing structure, the positioning plug includes a guide post fixedly connected to the sealing cover, and a plug sleeve fixedly sleeved on the guide post. The plug sleeve is made of elastic material and is inserted into the positioning groove.

[0013] The plug sleeve includes a plug sleeve body and a plurality of toothed protrusions, all of which surround the outer periphery of the plug sleeve body and are arranged sequentially along the set direction. The outer diameter of the toothed protrusions is larger than the inner diameter of the positioning groove; and / or; the guide post includes a connecting rod and a guide head, the connecting rod being fixedly connected to the sealing cap, the guide head being tapered, and the large end of the guide head being connected to the connecting rod. The outer diameter of the large end of the guide head is larger than the outer diameter of the connecting rod, and at least a portion of the guide head and the connecting rod are embedded in the plug sleeve.

[0014] As a preferred technical solution for the sealing structure, the sealing cover includes a cover plate and a first insert connected to the cover plate. The sealing ring is provided with a first slot. Both the first insert and the first slot are arranged around the opening, and the first insert is inserted into the first slot.

[0015] As a preferred technical solution for the sealing structure, the sealing cover further includes a second insert connected to the cover plate. The second insert is away from the opening relative to the first insert. The sealing ring is also provided with a second slot. Both the second insert and the second slot are arranged around the opening. The second insert is inserted into the second slot, and the height of the second insert protruding from the cover plate is less than the height of the first insert protruding from the cover plate.

[0016] As a preferred technical solution for the sealing structure, the first slot includes a first slot wall, a second slot wall, a first guide slot wall, and a second guide slot wall. The first slot wall and the second slot wall are parallel and spaced apart. The first guide slot wall is connected to the first slot wall at an angle, and the second guide slot wall is connected to the second slot wall at an angle. The distance between the first guide slot wall and the second guide slot wall gradually decreases along the direction in which the first insert is inserted into the first slot. The first guide slot wall and the second guide slot wall are used to guide the first insert to be inserted between the first slot wall (332) and the second slot wall; and / or,

[0017] The second slot includes a third slot wall and a third guide slot wall, the third guide slot wall being connected at an angle to the third slot wall, and the third guide slot wall being used to guide the second insert to contact the third slot wall.

[0018] As a preferred technical solution for the sealing structure, in the case where the first slot includes a first slot wall, a second slot wall, a first guide slot wall, and a second guide slot wall, and the second slot includes a third slot wall and a third guide slot wall:

[0019] The first groove wall, the first insert and the cover plate are arranged to form a first glue-filling groove, the second groove wall, the first insert and the cover plate are arranged to form a second glue-filling groove, and the third groove wall, the second insert and the cover plate are arranged to form a third glue-filling groove. The first glue-filling groove, the second glue-filling groove and the third glue-filling groove are all used to fill adhesive.

[0020] As a preferred technical solution for the sealing structure, the bottom shell is provided with a sealing groove, and the sealing ring is inserted into the sealing groove.

[0021] As a preferred technical solution for the sealing structure, the bottom shell includes a first plate and a second plate arranged in parallel and spaced apart, and a third plate connected between the first plate and the second plate, wherein the first plate, the second plate and the third plate form the sealing groove;

[0022] The sealing ring is further provided with a third slot, into which the second plate is inserted; and / or, the third plate is provided with a groove, and the sealing ring is further provided with a protrusion, which is inserted into the groove; and / or, along the circumference of the opening, the sealing ring is provided with a plurality of first locking protrusions at intervals, and the first plate is provided with a plurality of first locking grooves at intervals, the plurality of first locking protrusions and the plurality of first locking grooves being interference-fitted one-to-one; and / or, along the circumference of the opening, the sealing ring is provided with a plurality of second locking protrusions at intervals, and the second plate is provided with a plurality of second locking grooves at intervals, the plurality of second locking protrusions and the plurality of second locking grooves being interference-fitted one-to-one.

[0023] The sealing structure provided by this utility model has at least the following beneficial effects:

[0024] This sealing structure, through the interference fit between the elastic positioning plug and the positioning groove, ensures the stability of the connection between the sealing cover and the bottom shell. In addition, by making the direction of the insertion of the positioning plug into the positioning groove the same as the direction of the sealing cover on the bottom shell, the adjustment of the sealing cover position is not affected during the alignment of the positioning plug and the positioning groove. Moreover, when the positioning plug and the positioning groove are aligned, the sealing cover will be simultaneously placed on the opening while the positioning plug is inserted into the positioning groove. The operation is simple and can effectively improve the installation efficiency of the sealing cover.

[0025] On the other hand, this utility model provides a range hood, which includes a range hood body, a switch assembly, and a sealing structure from any of the above-mentioned solutions. The sealing structure is installed in the range hood body, and the switch assembly is installed in the accommodating cavity.

[0026] The range hood provided by this utility model has at least the following beneficial effects:

[0027] The range hood includes the aforementioned sealing structure, which can effectively improve the efficiency of disassembling and assembling the cover of the sealing structure, thereby improving the maintenance efficiency of the switch components. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the first structure of the range hood in this embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the second structure of the range hood in this embodiment of the present invention;

[0030] Figure 3 This is an exploded view of the sealing structure in an embodiment of the present invention;

[0031] Figure 4 This is a first cross-sectional view of the sealing structure in an embodiment of the present utility model;

[0032] Figure 5 This is an exploded view of a portion of the sealing structure in an embodiment of this utility model;

[0033] Figure 6 for Figure 4 Enlarged view at point A in the middle;

[0034] Figure 7 This is a cross-sectional view of the sealing ring in an embodiment of this utility model;

[0035] Figure 8 This is a partial cross-sectional view of the sealing cover and the housing in an embodiment of the present utility model;

[0036] Figure 9This is a second cross-sectional view of the sealing structure in an embodiment of the present invention;

[0037] Figure 10 for Figure 9 Enlarged view at point B;

[0038] Figure 11 This is a cross-sectional view of a partial structure of the sealing structure in an embodiment of this utility model;

[0039] Figure 12 This is a cross-sectional view of the sealing cap and sealing ring in an embodiment of this utility model;

[0040] Figure 13 for Figure 12 A magnified view at point C;

[0041] Figure 14 This is a cross-sectional view of the sealing cap in an embodiment of this utility model;

[0042] Figure 15 for Figure 14 A magnified view at point D;

[0043] Figure 16 This is a partial structural diagram of the sealing structure in an embodiment of the present invention.

[0044] In the picture:

[0045] 100. Switch assembly; 200. Sealing structure; 300. Smoke hood; 3001. Smoke inlet; 400. Oil filter; 500. Main unit housing; 600. Smoke collection plate;

[0046] 1. Bottom shell; 101. Front panel; 102. Cover; 103. Receiving cavity; 104. Opening; 105. Bottom plate; 106. Enclosure; 107. First plate; 108. Second plate; 109. Third plate; 110. Sealing groove; 111. Groove; 112. First slot; 113. Second slot; 114. Cable outlet;

[0047] 2. Sealing cap; 201. Cover plate; 202. First insert; 203. Second insert;

[0048] 3. Sealing ring; 301. First slot; 302. First slot wall; 303. Second slot wall; 304. First guide slot wall; 305. Second guide slot wall; 306. Second slot; 307. Third slot wall; 308. Third guide slot wall; 309. Third slot; 310. Protrusion; 311. First locking protrusion; 312. Second locking protrusion;

[0049] 4. Positioning plug; 401. Guide post; 402. Connecting rod; 403. Guide head; 404. Plug sleeve; 405. Plug sleeve body; 406. Toothed protrusion;

[0050] 5. Mounting base; 501. First mounting plate; 502. Second mounting plate; 503. Third mounting plate; 504. Positioning groove;

[0051] 601. First dispensing tank; 602. Second dispensing tank; 603. Third dispensing tank;

[0052] 7. Handle; 8. Lighting lamp; 9. Cable cover; 10. Cable harness. Detailed Implementation

[0053] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0054] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0057] This embodiment provides a range hood, specifically a side-draft range hood, which can be used in the kitchen to treat cooking fumes. In other embodiments, the range hood may also be a top-draft range hood, etc.

[0058] Specifically, please refer to Figures 1 to 3 The range hood provided in this embodiment includes a range hood body, a switch assembly 100, and a sealing structure 200. The sealing structure 200 is installed in the range hood body, and the switch assembly 100 is installed in the accommodating cavity 103. The sealing structure 200 seals and protects the switch assembly 100 to prevent water, oil, etc. from affecting the switch assembly 100, ensuring the reliability of the switch assembly 100's operation, and extending the service life of the switch assembly 100.

[0059] It should be noted that in this embodiment, the sealing structure 200 is not limited to accommodating the switch assembly 100. In other embodiments, the sealing structure 200 can also be used to accommodate other electronic components such as control boards and sensors, as needed. Furthermore, the sealing structure 200 is not limited to range hoods; in other embodiments, it can also be applied to dishwashers, washing machines, integrated cooktops, etc.

[0060] In an alternative embodiment, please refer to Figure 1 and Figure 2 The range hood body also includes a smoke collection hood 300, an oil filter 400, a main unit housing 500, a smoke gathering plate 600, and a fan (not shown in the attached diagram). The smoke collection hood 300 is equipped with a smoke inlet 3001. The smoke gathering plate 600 is rotatably connected to the smoke collection hood 300 and is used to open or close the smoke inlet 3001. The main unit housing 500 is connected to the smoke collection hood 300, and the inner cavity of the main unit housing 500 communicates with the inner cavity of the smoke collection hood 300. The fan is fixedly installed inside the main unit housing 500. With this configuration, when the range hood is working, the smoke gathering plate 600 collects oil fumes, steam, and other particulate matter. Driven by the negative pressure provided by the fan, the oil fumes enter the smoke collection hood 300 from the smoke inlet 3001, then enter the main unit housing 500, and are discharged to the exhaust duct by the fan.

[0061] In this embodiment, the switch assembly 100 is used to control the start and stop of the fan, as well as the speed of the fan.

[0062] In one optional embodiment, the smoke-collecting plate 600 and the sealing structure 200 are integrated. Specifically, a portion of the sealing structure 200 is formed by the smoke-collecting plate 600. In other embodiments, the smoke-collecting plate 600 and the sealing mechanism may also be independently configured, with the sealing structure 200 fixedly mounted on the smoke-collecting plate 600.

[0063] In an alternative embodiment, please refer to Figure 3 The switch assembly 100 is located on the back of the smoke collection plate 600, that is, the switch assembly 100 is located on the side of the smoke collection plate 600 facing the smoke collection hood 300, and the switch assembly 100 can be operated from the front of the smoke collection plate 600. This is prior art and will not be described in detail here.

[0064] In an alternative embodiment, please refer to Figures 3 to 8 The sealing structure 200 includes a bottom shell 1, a sealing cover 2, and a sealing ring 3. The bottom shell 1 has a receiving cavity 103 with an opening 104, which is used to accommodate the switch assembly 100; the sealing cover 2 is positioned along a predetermined direction (e.g., ...). Figure 3 The cover (in the direction indicated by the middle arrow ab) is placed on the bottom shell 1 and closes the opening 104. A sealing ring 3 is disposed between the bottom shell 1 and the sealing cover 2, and the sealing ring 3 is in contact with both the bottom shell 1 and the sealing cover 2. This arrangement prevents oil and water from entering the accommodating cavity 103, thus protecting the switch assembly 100 within the accommodating cavity 103. It is understood that in this embodiment, the sealing ring 3 is annular and surrounds the opening 104, thereby sealing the accommodating cavity 103.

[0065] In related technologies, multiple positioning holes are provided on the side of the bottom shell, evenly distributed around its circumference. Multiple elastic positioning elements are provided on the side of the sealing cover, also evenly distributed around its circumference. These elastic positioning elements are inserted one-to-one with the positioning holes to ensure a stable fit between the bottom shell and the sealing cover, thus improving the efficiency of installing and removing the sealing cover. However, because the elastic positioning elements and positioning holes are all located on the side circumference, when installing the sealing cover onto the bottom shell, it is necessary to continuously adjust the relative position of the sealing cover and the bottom shell along the direction of their engagement to ensure that the multiple elastic positioning elements and positioning holes are simultaneously aligned. This is inconvenient and affects the installation efficiency of the sealing cover. Furthermore, during the adjustment process, the elastic positioning elements are in an elastic deformation state. Only when the multiple elastic positioning elements and positioning holes are simultaneously aligned can the elastic positioning elements release their elastic force and insert into the corresponding positioning holes. Before this, the elastic force of the elastic positioning elements will hinder the movement of the sealing cover, further affecting the installation efficiency.

[0066] For this, please refer to Figures 9 to 11In this embodiment, one of the bottom shell 1 and the sealing cover 2 is provided with a positioning plug 4, and the other of the bottom shell 1 and the sealing cover 2 is provided with a positioning groove 504. The positioning plug 4 is elastic and is interference-fitted into the positioning groove 504 in a set direction. This configuration ensures the stability of the connection between the sealing cover 2 and the bottom shell 1 by interference-fitting the elastic positioning plug 4 into the positioning groove 504. In addition, the direction in which the positioning plug 4 is inserted into the positioning groove 504 is the same as the direction in which the sealing cover 2 is placed on the bottom shell 1. Therefore, the adjustment of the position of the sealing cover 2 is not affected during the alignment of the positioning plug 4 with the positioning groove 504. Furthermore, when the positioning plug 4 is aligned with the positioning groove 504, the sealing cover 2 is simultaneously placed on the opening 104 while the positioning plug 4 is inserted into the positioning groove 504. The operation is simple and can effectively improve the installation efficiency of the sealing cover 2.

[0067] In this embodiment, an exemplary solution is provided in which a positioning plug 4 is provided in the sealing cover 2 and a positioning groove 504 is provided in the bottom shell 1; in other embodiments, a positioning plug 4 can also be provided in the bottom shell 1 and a positioning groove 504 can be provided in the sealing cover 2.

[0068] It should be noted that the positioning plug 4 is inserted into the positioning groove 504 through elastic deformation, so that the positioning plug 4 can be pulled out of the positioning groove 504 relatively easily when the sealing cover 2 is removed.

[0069] In an alternative embodiment, please refer to Figure 2 , Figures 9 to 11 The bottom shell 1 includes a bottom shell body and multiple mounting seats 5, each connected to the bottom shell body. A receiving cavity 103 is disposed in the bottom shell body, and the multiple mounting seats 5 are all located within the receiving cavity 103. The multiple mounting seats 5 are used to fix electronic components. This arrangement, by fixing the switch assembly 100 with the mounting seats 5, ensures the stability of the switch assembly 100's position within the receiving cavity 103. Furthermore, the identical structure of each mounting seat 5 effectively reduces the number of components. In this embodiment, an example is provided where the bottom shell 1 includes two mounting seats 5.

[0070] In an alternative embodiment, please refer to Figure 3 , Figure 4 , Figures 9 to 11 The bottom shell body includes a panel 101 and a cover 102. The cover 102 and the panel 101 form a receiving cavity 103 with an opening 104. Multiple mounting seats 5 are fixedly installed on the panel 101. The mounting seats 5 can be glued to the panel 101.

[0071] In one optional embodiment, the panel 101 and the smoke collection plate 600 are integrally formed. In other embodiments, the panel 101 and the smoke collection plate 600 can also be independent of each other, with the panel 101 fixedly connected to the smoke collection plate 600.

[0072] In an optional embodiment, the panel 101 is made of glass, and the cover 102 is integrally formed by stretching sheet metal. The cover 102 and the panel 101 can be fixed together by adhesive, which can be silicone adhesive.

[0073] In an alternative embodiment, please refer to Figure 2 , Figure 3 and Figure 9 The housing 102 includes a base plate 105 that fits against the panel 101, and a surrounding plate 106 that protrudes from the base plate 105. The surrounding plate 106 and the smoke collection plate 600 form a receiving cavity 103, and an opening 104 is provided in the surrounding plate 106. The surrounding plate 106 and the base plate 105 are integrally formed. In other embodiments, the base plate 105 and the surrounding plate 106 can also be separately provided, and the base plate 105 and the surrounding plate 106 can be assembled by welding, gluing or other processes.

[0074] In an alternative embodiment, please refer to Figure 10 The mounting base 5 is U-shaped and includes a first mounting plate 501, a second mounting plate 502 and a third mounting plate 503 connected in sequence. The first mounting plate 501 and the third mounting plate 503 are spaced apart and parallel to each other. The second mounting plate 502 is perpendicular to both the first mounting plate 501 and the third mounting plate 503. The first mounting plate 501 is glued to the panel 101. The third mounting plate 503 is suspended and has mounting holes for fixing the switch assembly 100.

[0075] In an optional embodiment, the first mounting plate 501 is further provided with a recess, the opening of which faces the panel 101. The recess is used to store adhesive to ensure the stability of the connection between the first mounting plate 501 and the panel 101.

[0076] In an alternative embodiment, please refer to Figure 2 , Figures 9 to 11 Each mounting base 5 is provided with a positioning groove 504; the sealing cover 2 is provided with multiple positioning plugs 4, which are inserted into the positioning grooves 504 on the mounting base 5 one by one. With this configuration, the switch assembly 100 and the cover plate 201 can be fixed at the same time through the mounting base 5.

[0077] In an alternative embodiment, please refer to Figure 2 , Figures 9 to 11 Each mounting base 5 is provided with multiple positioning slots 504. In this embodiment, an exemplary scheme is provided in which each mounting base 5 is provided with two positioning slots 504.

[0078] In an alternative embodiment, please refer to Figures 9 to 11 The positioning plug 4 includes a guide post 401 fixedly connected to the sealing cap 2, and a plug sleeve 404 fixedly sleeved on the guide post 401. The plug sleeve 404 is made of elastic material and is inserted into the positioning groove 504. The plug sleeve 404 includes a plug sleeve body 405 and multiple toothed protrusions 406. The multiple toothed protrusions 406 surround the outer periphery of the plug sleeve body 405 and are arranged sequentially along a set direction. The outer diameter of the toothed protrusions 406 is larger than the inner diameter of the positioning groove 504. With this configuration, the toothed protrusions 406 will undergo elastic deformation when inserted into the positioning groove 504, thereby ensuring an interference fit with the positioning groove 504. The plug sleeve 404 can be made of materials such as rubber or silicone.

[0079] In an alternative embodiment, please refer to Figures 9 to 11 The inner diameter of the positioning groove 504 is L1, the diameter of the inner edge of the toothed protrusion 406 is L2, and the diameter of the outer edge of the toothed protrusion 406 is L3; L1 = L2, and L3 is between 1.1 and 1.2 times L1, such as L1 = 1.1L2, L1 = 1.15L2, or L1 = 1.2L2. In other embodiments, the ratio of L3 to L1 can also be set as needed.

[0080] In an alternative embodiment, please refer to Figure 11 The guide post 401 includes a connecting rod 402 and a guide head 403. The connecting rod 402 is fixedly connected to the sealing cover 2. The guide head 403 is tapered, and its large end is connected to the connecting rod 402. The outer diameter of the large end of the guide head 403 is larger than the outer diameter of the connecting rod 402. The guide head 403 and a portion of the connecting rod 402 are embedded in the plug sleeve 404. This arrangement prevents the plug sleeve 404 from falling off the connecting rod 402.

[0081] In an optional embodiment, the connecting rod 402 is made of metal and has high rigidity, allowing the positioning plug 4 to be smoothly inserted into the positioning groove 504. Preferably, the connecting rod 402 and the sealing cap 2 are welded together.

[0082] In an alternative embodiment, please refer to Figures 5 to 8 The sealing cover 2 includes a cover plate 201 and a first insert 202 connected to the cover plate 201. The sealing ring 3 is provided with a first slot 301. Both the first insert 202 and the first slot 301 are arranged around the opening 104, and the first insert 202 is inserted into the first slot 301. With this arrangement, the stability of the connection between the sealing ring 3 and the sealing cover 2 can be ensured by the insertion of the first insert 202 into the first slot 301 of the sealing ring 3, and by the adhesion between the sealing ring 3 and the sealing cover 2, thereby ensuring the sealing effect.

[0083] In an alternative embodiment, please refer to Figures 5 to 15 The sealing cover 2 also includes a second insert 203 connected to the cover plate 201. The second insert 203 is away from the opening 104 relative to the first insert 202. The sealing ring 3 is also provided with a second slot 306. The second insert 203 and the second slot 306 are both arranged around the opening 104. The second insert 203 is inserted into the second slot 306, and the height of the second insert 203 protruding from the cover plate 201 is less than the height of the first insert 202 protruding from the cover plate 201. With this configuration, the connection strength between the sealing cover 2 and the sealing ring 3 can be further enhanced by simultaneously inserting the second insert 203 and the first insert 202 into the sealing ring 3. Furthermore, an insertion groove can be formed between the second insert 203 and the first insert 202, and a portion of the sealing ring 3 can be inserted into this groove, which can further enhance the stability of the connection between the sealing ring 3 and the sealing cover 2. In addition, by making the height of the second insert 203 protruding from the cover plate 201 less than the height of the first insert 202 protruding from the cover plate 201, the overall strength and rigidity of the sealing cover 2 can be significantly enhanced, and it is also convenient to assemble with the sealing ring 3.

[0084] Specifically, in this embodiment, the cover plate 201 and the second insert 203 are integrally formed. The second insert 203 is a flange disposed on the outer periphery of the cover plate 201. The first insert 202 is welded to the sealing cover 2, and the first insert 202 is located inside the second insert 203.

[0085] In an alternative embodiment, please refer to Figure 7 The first slot 301 includes a first slot wall 302, a second slot wall 303, a first guide slot wall 304, and a second guide slot wall 305. The first slot wall 302 and the second slot wall 303 are parallel and spaced apart. The first guide slot wall 304 is connected to the first slot wall 302 at an angle, and the second guide slot wall 305 is connected to the second slot wall 303 at an angle. The distance between the first guide slot wall 304 and the second guide slot wall 305 gradually decreases along the direction in which the first insert 202 is inserted into the first slot 301. The first guide slot wall 304 and the second guide slot wall 305 are used to guide the first insert 202 into the space between the first slot wall 302 and the second slot wall 303. With this configuration, when assembling the sealing ring 3, the first guide slot wall 304 and the second guide slot wall 305 guide the first insert 202 to be smoothly inserted between the first slot wall 302 and the second slot wall 303, thereby improving the ease of assembly.

[0086] Specifically, in this embodiment, the first guide groove wall 304 and the second guide groove wall 305 form a funnel-shaped groove. The distance between the first groove wall 302 and the second groove wall 303 is not greater than the thickness of the first insert 202, so that the first insert 202 can smoothly enter between the first groove wall 302 and the second groove wall 303 through the groove. In this embodiment, both the first guide groove wall 304 and the second guide groove wall 305 are formed by a straight chamfer. In other embodiments, the first guide groove wall 304 and the second guide groove wall 305 can also be formed by a rounded chamfer.

[0087] In an alternative embodiment, please refer to Figure 6 and Figure 13 The first groove wall 302, the first insert 202, and the cover plate 201 form a first glue-filling groove 601, and the second groove wall 303, the first insert 202, and the cover plate 201 form a second glue-filling groove 602. Both the first glue-filling groove 601 and the second glue-filling groove 602 are used to fill adhesive. This arrangement makes full use of the space formed by the first guide groove wall 304 and the second guide groove wall 305, the first insert 202, and the cover plate 201 for glue filling, eliminating the need to process a separate glue-filling groove on the sealing ring 3 or the sealing cover 2, resulting in a simple structure. Furthermore, the adhesive simultaneously connects the cover plate 201, the sealing ring 3, and the first insert 202 together, further improving the stability of the connection between the sealing cover 2 and the sealing ring 3.

[0088] In an alternative embodiment, please refer to Figure 7 The second slot 306 includes a third slot wall 307 and a third guide slot wall 308. The third guide slot wall 308 is connected to the third slot wall 307 at an angle, and the third guide slot wall 308 is used to guide the second insert 203 to contact the third slot wall 307. Specifically, in this embodiment, the first slot wall 302 is located between the third slot wall 307 and the second slot wall 303. The first end of the third guide slot wall 308 is connected to the third slot wall 307, and the second end of the third guide slot wall 308 is closer to the first slot wall 302 than the first end of the third guide slot wall 308. Therefore, when assembling the sealing ring 3, the second insert 203 can smoothly contact the third slot wall 307 by being guided by the third guide slot wall 308, thereby improving the convenience of assembly.

[0089] In an optional embodiment, the distance between the first groove wall 302 and the third groove wall 307 is not less than the distance between the second insert 203 and the first insert 202, so that the sealing ring 3 can be more securely assembled with the first insert 202 and the second insert 203.

[0090] In addition, in this embodiment, the third guide groove wall 308 is formed by a straight chamfer, while in other embodiments, the third guide groove wall 308 can also be formed by a rounded chamfer.

[0091] In an alternative embodiment, please refer to Figure 6 and Figure 13 The third groove wall 307, the second insert 203, and the cover plate 201 are configured to form a third adhesive filling groove 603, which is used to fill the adhesive. This configuration fully utilizes the space formed by the third guide groove wall 308, the second insert 203, and the cover plate 201 for adhesive filling, eliminating the need to separately machine an adhesive filling groove on the sealing ring 3 or the sealing cover 2, resulting in a simple structure. Of course, in other embodiments, an adhesive filling groove can also be directly provided on the sealing ring 3 or the sealing cover 2 as needed.

[0092] It should be noted that the adhesives poured into the first dispensing tank 601, the second dispensing tank 602, and the third dispensing tank 603 can be selected according to actual needs. In this embodiment, a scheme of dispensing with 502 adhesive is provided as an example; in other embodiments, polyurethane or other similar adhesives can also be used.

[0093] In an alternative embodiment, please refer to Figure 6 and Figure 8 The bottom shell 1 is provided with a sealing groove 110, and the sealing ring 3 is inserted into the sealing groove 110. Specifically, the sealing groove 110 is provided on the surrounding plate 106 of the cover 102. This arrangement ensures that the relative position of the sealing ring 3 and the bottom shell 1 is stable after assembly, and forms a sealing path with the same contour as the sealing groove 110, thereby preventing oil, water, etc. from entering the receiving cavity 103 and ensuring the sealing effect. Preferably, the sealing ring 3 is interference-fitted into the sealing groove 110 to further ensure stable sealing performance.

[0094] In an alternative embodiment, please refer to Figure 6 and Figure 8 The enclosure 106 includes a first plate 107 and a second plate 108 arranged parallel and spaced apart, and a third plate 109 connected between the first plate 107 and the second plate 108. The first plate 107, the second plate 108, and the third plate 109 form a sealing groove 110. Specifically, the sealing groove 110 is disposed in the enclosure 106, the third plate 109 is arranged parallel to the panel 101, the first plate 107 and the second plate 108 are both perpendicular to the third plate 109, and the opening 104 is formed by the second plate 108, so that the sealing groove 110 is U-shaped, thereby enabling the sealing ring 3 and the groove wall of the sealing groove 110 to form a U-shaped sealing path. In other embodiments, the sealing groove 110 can also be other shapes as needed.

[0095] Specifically, in this embodiment, the second insert 203 and the first insert 202 are both located between the first plate 107 and the second plate 108, with the second insert 203 being disposed adjacent to the first plate 107 and the first insert 202 being centrally located between the first plate 107 and the second plate 108.

[0096] In an alternative embodiment, please refer to Figures 6 to 8 The sealing ring 3 is also provided with a third slot 309, into which the second plate 108 is inserted. This arrangement not only improves the stability of the fit between the sealing ring 3 and the cover 102, but also extends the sealing path, thereby improving the reliability of the sealing effect.

[0097] In an alternative embodiment, please refer to Figures 6 to 8 The third plate 109 is provided with a groove 111, and the sealing ring 3 is also provided with a protrusion 310, which is inserted into the groove 111. Specifically, the groove 111 and the protrusion 310 are both arranged around the opening 104. By engaging the protrusion 310 with the groove 111, the sealing path can be made more tortuous and the sealing path can be extended to further improve the reliability of the sealing effect. Preferably, the third plate 109 is provided with a plurality of grooves 111 at intervals, and the sealing ring 3 is provided with a plurality of protrusions 310 at intervals, with the plurality of protrusions 310 correspondingly inserted into the plurality of grooves 111. In this embodiment, an exemplary scheme is provided in which the third plate 109 is provided with two grooves 111 at intervals and the sealing ring 3 is provided with two protrusions 310 at intervals.

[0098] In an alternative embodiment, please refer to Figures 5 to 9 Along the circumference of the opening 104, the sealing ring 3 is provided with a plurality of first locking protrusions 311 at intervals, and the first plate 107 is provided with a plurality of first locking grooves 112 at intervals. The plurality of first locking protrusions 311 and the plurality of first locking grooves 112 are interference-fitted one-to-one. This arrangement can further improve the stability of the connection between the sealing ring 3 and the cover 102. Specifically, both the first locking protrusions 311 and the first locking grooves 112 are hemispherical, and the radius of the first locking protrusion 311 is 1.2 to 1.5 times the radius of the first locking groove 112, so that the first locking protrusions 311 and the first locking grooves 112 are interference-fitted.

[0099] In an alternative embodiment, please refer to Figure 5 and Figure 9Along the circumference of the opening 104, the sealing ring 3 is provided with a plurality of second locking protrusions 312 at intervals, and the second plate 108 is provided with a plurality of second locking grooves 113 at intervals. The plurality of second locking protrusions 312 and the plurality of second locking grooves 113 are interference-fitted one-to-one. This arrangement can further improve the stability of the connection between the sealing ring 3 and the cover 102. Specifically, the second locking protrusions 312 and the second locking grooves 113 are both hemispherical, and the radius of the second locking protrusions 312 is 1.2 to 1.5 times the radius of the second locking grooves 113, so that the second locking protrusions 312 and the second locking grooves 113 are interference-fitted.

[0100] In an alternative embodiment, please refer to Figure 3 and Figure 4 The sealing structure 200 also includes a handle 7 fixedly connected to the sealing cover 2, and the handle 7 is located outside the receiving cavity 103. This arrangement allows the sealing cover 2 and the sealing ring 3 to be easily removed from the bottom shell 1 via the handle 7, making the operation simple and convenient. In this embodiment, an exemplary solution is provided where two handles 7 are provided on the cover plate 201.

[0101] In an alternative embodiment, please refer to Figure 3 and Figure 4 The sealing structure 200 also includes a lighting lamp 8, and the cover 102 is provided with a mounting groove in which the lighting lamp 8 is embedded. By providing the lighting lamp 8, illumination can be provided during cooking. In this embodiment, an exemplary solution is provided in which two lighting lamps 8 are provided on the cover 102.

[0102] In an alternative embodiment, please refer to Figure 3 , Figure 4 and Figure 16 The housing 102 is provided with a cable outlet 114, and the sealing structure 200 also includes a cable guard 9 that is sealed and connected to the housing 102. The cable outlet 114 communicates with the inner cavity of the cable guard 9. Specifically, the cable outlet 114 is provided on the enclosure 106. The cable outlet 114 and the cable guard 9 are used to pass through the wire harness 10 connected to the switch assembly 100. The cable guard 9 is sealed to the housing 102 to prevent oil and water from entering the receiving cavity 103 along the wire harness 10, thus ensuring a sealing effect. Preferably, the cable outlet 114 is provided at the top of the housing 102.

[0103] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A seal structure, characterized by, include: The bottom shell (1) is provided with a receiving cavity (103) having an opening (104), the receiving cavity (103) being used to accommodate electronic components; A sealing cover (2) is placed on the bottom shell (1) along a set direction and closes the opening (104). One of the bottom shell (1) and the sealing cover (2) is provided with a positioning plug (4), and the other of the bottom shell (1) and the sealing cover (2) is provided with a positioning groove (504). The positioning plug (4) is elastic and is interference-fitted into the positioning groove (504) along the set direction. A sealing ring (3) is disposed between the bottom shell (1) and the sealing cover (2), and the sealing ring (3) is respectively attached to the bottom shell (1) and the sealing cover (2).

2. The sealing structure according to claim 1, characterized in that, When the positioning plug (4) is provided on the sealing cover (2) and the positioning groove (504) is provided on the bottom shell (1): The bottom shell (1) includes a bottom shell body and a plurality of mounting seats (5) connected to the bottom shell body. The accommodating cavity (103) is disposed in the bottom shell body. The plurality of mounting seats (5) are all located in the accommodating cavity (103). The plurality of mounting seats (5) are used to fix the electronic components. Each mounting seat (5) is provided with the positioning groove (504). The sealing cover (2) is provided with a plurality of positioning plugs (4), and the plurality of positioning plugs (4) are inserted into the positioning grooves (504) on the plurality of mounting seats (5) in a one-to-one correspondence.

3. The sealing structure according to claim 1, characterized in that, The positioning plug (4) includes a guide post (401) fixedly connected to the sealing cover (2) and a plug sleeve (404) fixedly sleeved on the guide post (401). The plug sleeve (404) is made of elastic material and is inserted into the positioning groove (504). The plug sleeve (404) includes a plug sleeve body (405) and a plurality of toothed protrusions (406). The plurality of toothed protrusions (406) surround the outer periphery of the plug sleeve body (405) and are arranged sequentially along the set direction. The outer diameter of the toothed protrusions (406) is larger than the inner diameter of the positioning groove (504); and / or; the guide post (401) includes a connecting rod (402) and a guide head (403). The connecting rod (402) is fixedly connected to the sealing cap (2). The guide head (403) is conical and its large end is connected to the connecting rod (402). The outer diameter of the large end of the guide head (403) is larger than the outer diameter of the connecting rod (402). At least a portion of the guide head (403) and the connecting rod (402) are embedded in the plug sleeve (404).

4. The sealing structure according to claim 1, characterized in that, The sealing cover (2) includes a cover plate (201) and a first insert (202) connected to the cover plate (201). The sealing ring (3) is provided with a first slot (301). The first insert (202) and the first slot (301) are both arranged around the opening (104), and the first insert (202) is inserted into the first slot (301).

5. The sealing structure according to claim 4, characterized in that, The sealing cover (2) further includes a second insert (203) connected to the cover plate (201). The second insert (203) is away from the opening (104) relative to the first insert (202). The sealing ring (3) is also provided with a second slot (306). The second insert (203) and the second slot (306) are both arranged around the opening (104). The second insert (203) is inserted into the second slot (306), and the height of the second insert (203) protruding from the cover plate (201) is less than the height of the first insert (202) protruding from the cover plate (201).

6. The sealing structure according to claim 5, characterized in that, The first slot (301) includes a first slot wall (302), a second slot wall (303), a first guide slot wall (304), and a second guide slot wall (305). The first slot wall (302) and the second slot wall (303) are parallel and spaced apart. The first guide slot wall (304) is connected to the first slot wall (302) at an angle, and the second guide slot wall (305) is connected to the second slot wall (303) at an angle. The distance between the first guide slot wall (304) and the second guide slot wall (305) gradually decreases along the direction in which the first insert (202) is inserted into the first slot (301). The first guide slot wall (304) and the second guide slot wall (305) are used to guide the first insert (202) to be inserted between the first slot wall (302) and the second slot wall (303); and / or, The second slot (306) includes a third slot wall (307) and a third guide slot wall (308), the third guide slot wall (308) being connected at an angle to the third slot wall (307), and the third guide slot wall (308) being used to guide the second insert (203) to contact the third slot wall (307).

7. The sealing structure according to claim 6, characterized in that, In the case where the first slot (301) includes a first slot wall (302), a second slot wall (303), a first guide slot wall (304), and a second guide slot wall (305), and the second slot (306) includes a third slot wall (307) and a third guide slot wall (308): The first groove wall (302), the first insert (202), and the cover plate (201) are arranged to form a first glue-filling groove (601), the second groove wall (303), the first insert (202), and the cover plate (201) are arranged to form a second glue-filling groove (602), and the third groove wall (307), the second insert (203), and the cover plate (201) are arranged to form a third glue-filling groove (603). The first glue-filling groove (601), the second glue-filling groove (602), and the third glue-filling groove (603) are all used to fill adhesive.

8. The sealing structure according to any one of claims 1-7, characterized in that, The bottom shell (1) is provided with a sealing groove (110), and the sealing ring (3) is inserted into the sealing groove (110).

9. The sealing structure according to claim 8, characterized in that, The bottom shell (1) includes a first plate (107) and a second plate (108) arranged in parallel and spaced apart, and a third plate (109) connected between the first plate (107) and the second plate (108). The first plate (107), the second plate (108) and the third plate (109) form the sealing groove (110). The sealing ring (3) is further provided with a third slot (309), into which the second plate (108) is inserted; and / or, the third plate (109) is provided with a groove (111), and the sealing ring (3) is further provided with a protrusion (310), which is inserted into the groove (111); and / or, along the circumference of the opening (104), the sealing ring (3) is provided with a plurality of first latching protrusions (311) spaced apart, and the first plate (108) is provided with a third slot (309), into which the second plate (108) is inserted; and / or, along the circumference of the opening (104), the sealing ring (3) is provided with a plurality of first latching protrusions (311), which are provided into the groove (111) and the second plate (108) is inserted; 07) A plurality of first slots (112) are provided at intervals, and a plurality of first protrusions (311) are interlocked with the plurality of first slots (112) in a one-to-one correspondence; and / or, along the circumference of the opening (104), the sealing ring (3) is provided with a plurality of second protrusions (312) at intervals, and the second plate (108) is provided with a plurality of second slots (113) at intervals, and a plurality of second protrusions (312) are interlocked with the plurality of second slots (113) in a one-to-one correspondence.

10. A range hood, characterized in that, The range hood body, the switch assembly (100), and the sealing structure according to any one of claims 1-9 are described above. The sealing structure is installed on the range hood body, and the switch assembly (100) is installed in the accommodating cavity (103).

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