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, this sealing structure includes panel, cover and sealing cover subassembly, cover and panel sealed lamination, and cover and panel surround into accommodating cavity, cover is provided with the open mouth with accommodating cavity intercommunication, sealing cover subassembly includes the sealing cover for closing open mouth, sets up between sealing cover and cover and seals the ring, the ring around open mouth setting, sealing ring and sealing cover plug -in and through the glue bond, sealing ring and cover sealed lamination, and through sealing ring and sealing cover bond and plug -in cooperation, can guarantee the stability of sealing ring and sealing cover connection, and then guarantee sealing effect.

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] A range hood, also known as a kitchen exhaust hood or cooking hood, is a kitchen appliance that purifies the kitchen environment. Installed above the stove, it quickly removes the exhaust fumes from the stove and the harmful oil fumes produced during cooking, expelling them outdoors.

[0003] 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. Taking a switch assembly as an example, existing technology provides a sealing structure for a switch, including a panel, a backing plate adhered to the panel, and a sealing cover over the backing plate. A receiving cavity for accommodating the switch assembly is formed between the sealing cover and the backing plate. A sealing ring is provided between the sealing cover and the backing plate to prevent water and oil from entering the receiving cavity, thus protecting the switch assembly. To ensure the stability of the sealing ring's position, a slot is provided on the sealing cover, and the sealing ring is interference-fitted into the slot, fixing the positions of both the sealing ring and the sealing cover. However, in actual use, interference fitting alone is insufficient to guarantee the stability of the connection between the sealing ring and the sealing cover. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing structure and a range hood to improve the stability of the connection between the sealing ring and the sealing cover.

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

[0006] panel;

[0007] The cover is sealed and fitted to the panel, and the cover and the panel enclose a receiving cavity, and the cover is provided with an opening communicating with the receiving cavity;

[0008] A sealing cap assembly includes a sealing cap for closing the opening, and a sealing ring disposed between the sealing cap and the housing, the sealing ring surrounding the opening, the sealing ring being inserted into and bonded to the sealing cap, and the sealing ring being sealed and fitted to the housing.

[0009] 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.

[0010] 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 parallel to and spaced apart from the first insert. The sealing ring is also provided with a second slot. 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.

[0011] 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 and the second slot wall; and / or,

[0012] 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.

[0013] 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:

[0014] 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.

[0015] As a preferred embodiment of the sealing structure, the sealing structure further includes a heating element embedded in the sealing ring, the heating element being disposed around the opening; and / or,

[0016] The sealing structure further includes a handle fixedly connected to the sealing cover, the handle being located outside the receiving cavity; and / or

[0017] The sealing structure further includes a lighting lamp, and the housing is provided with a mounting groove in which the lighting lamp is embedded; and / or,

[0018] The housing is provided with a cable outlet, and the sealing structure also includes a cable guard that is sealed to the housing, and the cable outlet communicates with the inner cavity of the cable guard.

[0019] As a preferred technical solution for the sealing structure, the cover is provided with a sealing groove, and the sealing ring is inserted into the sealing groove.

[0020] As a preferred technical solution for the sealing structure, the cover 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;

[0021] 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.

[0022] The sealing structure provided by this utility model has at least the following beneficial effects:

[0023] The sealing structure includes a panel, a housing, and a sealing cap assembly. The housing is sealed and fitted to the panel, and the housing and the panel enclose a receiving cavity. The housing has an opening that communicates with the receiving cavity. The sealing cap assembly includes a sealing cap for closing the opening, a sealing ring disposed between the sealing cap and the housing, the sealing ring surrounding the opening, and the sealing ring and the sealing cap being inserted and bonded together. The sealing ring is sealed and fitted to the housing, and the bonding and insertion of the sealing ring and the sealing cap ensures the stability of the connection between the sealing ring and the sealing cap, thereby ensuring the sealing effect.

[0024] On the other hand, this utility model provides a range hood, including the sealing structure in any of the above solutions, and the range hood also includes a switch assembly installed in the receiving cavity.

[0025] As a preferred technical solution for a range hood, the sealing structure further includes a plurality of mounting seats located within the receiving cavity, each mounting seat being fixedly connected to the panel or the cover, and the switch assembly being mounted on the plurality of mounting seats; and / or,

[0026] The range hood also includes a smoke collection hood, an oil filter, a main unit housing, and a fan. The smoke collection hood includes a smoke inlet. A panel is rotatably connected to the smoke collection hood and is used to open or close the smoke inlet. The cover is located on the side of the panel facing the smoke collection hood. The oil filter is connected to the smoke collection hood and is located at the smoke inlet. The main unit housing is connected to the smoke collection hood, and the inner cavity of the main unit housing communicates with the inner cavity of the smoke collection hood. The fan is fixedly installed inside the main unit housing.

[0027] The range hood provided by this utility model has at least the following beneficial effects:

[0028] The range hood uses the aforementioned sealing structure, which improves the reliability of the sealing effect on the switch components. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the first structure of the range hood in this embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the second structure of the range hood in this embodiment of the present invention;

[0031] Figure 3 This is an exploded view of the sealing structure in an embodiment of the present invention;

[0032] Figure 4 This is a first cross-sectional view of the sealing structure in an embodiment of the present utility model;

[0033] Figure 5 This is an exploded view of the sealing cap assembly in an embodiment of the present invention;

[0034] Figure 6 for Figure 4 Enlarged view of point A in the middle;

[0035] Figure 7 This is a cross-sectional view of the sealing ring in an embodiment of this utility model;

[0036] Figure 8 This is a partial cross-sectional view of the sealing cover and the housing in an embodiment of the present utility model;

[0037] Figure 9 This is a second cross-sectional view of the sealing structure in an embodiment of the present invention;

[0038] Figure 10 for Figure 9 Enlarged view at point B;

[0039] Figure 11 This is a cross-sectional view of a partial structure of the sealing structure in an embodiment of this utility model;

[0040] Figure 12This is a cross-sectional view of the sealing cap assembly in an embodiment of the present invention;

[0041] Figure 13 for Figure 12 A magnified view at point C;

[0042] Figure 14 This is a cross-sectional view of the sealing cap in an embodiment of this utility model;

[0043] Figure 15 for Figure 14 A magnified view at point D;

[0044] Figure 16 This is a partial structural diagram of the sealing structure in an embodiment of the present invention.

[0045] In the picture:

[0046] 100. Switch assembly; 200. Sealing structure; 300. Smoke hood; 301. Smoke inlet; 400. Oil filter; 500. Main unit housing;

[0047] 1. Panel;

[0048] 2. Cover; 21. Receiving cavity; 22. Opening; 23. Base plate; 24. Enclosure plate; 241. First plate; 242. Second plate; 243. Third plate; 244. Sealing groove; 245. Groove; 246. First slot; 247. Second slot; 248. Cable outlet;

[0049] 3. Sealing cap assembly; 30. Sealing cap; 31. Cover plate; 32. First insert; 33. Sealing ring; 331. First slot; 332. First groove wall; 333. Second groove wall; 334. First guide groove wall; 335. Second guide groove wall; 336. Second slot; 337. Third groove wall; 338. Third guide groove wall; 339. Third slot; 340. Protrusion; 341. First latching protrusion; 342. Second latching protrusion; 34. Second insert;

[0050] 4. Mounting base; 41. First mounting plate; 42. Second mounting plate; 43. Third mounting plate;

[0051] 51. First dispensing tank; 52. Second dispensing tank; 53. Third dispensing tank;

[0052] 6. Heating element; 7. Handle; 8. Lighting lamp; 9. Cable cover; 10. Wire 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 3The range hood provided in this embodiment includes a switch assembly 100 and a sealing structure 200 for accommodating the switch assembly 100. 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] In an alternative embodiment, please refer to Figures 3 to 8 The sealing structure 200 includes a panel 1, a housing 2, and a sealing cover assembly 3. The housing 2 is sealed and fitted to the panel 1, and the housing 2 and panel 1 together form a receiving cavity 21 for accommodating the switch assembly 100. The housing 2 has an opening 22 communicating with the receiving cavity 21. The sealing cover assembly 3 includes a sealing cover 30 for closing the opening 22, and a sealing ring 33 disposed between the sealing cover 30 and the housing 2. The sealing ring 33 surrounds the opening 22 and is sealed and fitted to both the sealing cover 30 and the housing 2, and is inserted into the sealing cover 30. This allows oil and water to be prevented from entering the receiving cavity 21 through the sealing ring 33, thus protecting the switch assembly 100 within the receiving cavity 21.

[0060] 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.

[0061] In existing technologies, a slot is provided on the sealing cover to ensure the stability of the sealing ring's position. The sealing ring is interference-fitted into the slot, thus fixing the positions of both the sealing ring and the sealing cover. However, in actual use, it is difficult to guarantee the stability of the connection between the sealing ring and the sealing cover solely through interference fitting.

[0062] In this embodiment, the sealing ring 33 is also bonded to the sealing cover 30 to ensure the stability of the connection between the sealing ring 33 and the sealing cover 30, thereby ensuring the sealing effect on the switch assembly 100.

[0063] In an alternative embodiment, please refer to Figure 1 and Figure 2The range hood also includes a smoke collection hood 300, an oil filter 400, a main unit housing 500, and a fan (not shown in the attached drawings). The smoke collection hood 300 includes a smoke inlet 301. A panel 1 is rotatably connected to the smoke collection hood 300 and is used to open or close the smoke inlet 301. A cover 2 is located on the side of the panel 1 facing the smoke collection hood 300, i.e., behind the panel 1. The oil filter 400 is connected to the smoke collection hood 300 and located at the smoke inlet 301. 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 setup, driven by the negative pressure provided by the fan, the fumes enter the fume collection hood 300 from the smoke inlet 301, then enter the main unit 500, and are discharged to the exhaust duct by the fan. In addition, the panel 1 is used to collect the fumes so that more fumes can enter the smoke inlet 301, thereby improving the range hood's fume extraction capacity.

[0064] It should be noted that the switch assembly 100 is used to control the start and stop of the fan, as well as the fan speed, and the switch assembly 100 can be operated from the front of the panel 1. This is existing technology and will not be described in detail here.

[0065] In an alternative embodiment, please refer to Figure 3 and Figure 4 Panel 1 is made of glass, and housing 2 is formed by stretching sheet metal into one piece. Housing 2 and panel 1 can be bonded together with adhesive. Specifically, silicone adhesive can be used.

[0066] In one optional embodiment, the housing 2 includes a base plate 23 that fits against the panel 1, and a surrounding plate 24 protruding from the base plate 23. The surrounding plate 24 and the panel 1 form a receiving cavity 21, and an opening 22 is provided in the surrounding plate 24. In other embodiments, the base plate 23 and the surrounding plate 24 may also be separately provided, and may be assembled from the base plate 23 and the surrounding plate 24 by processes such as welding and gluing.

[0067] In an alternative embodiment, please refer to Figure 2 , Figures 9 to 11 The sealing structure 200 also includes a plurality of mounting seats 4 located within the receiving cavity 21. Each mounting seat 4 is fixedly connected to the panel 1 or the cover 2, and the switch assembly 100 is mounted on the plurality of mounting seats 4. This arrangement ensures the stability of the position of the switch assembly 100 within the receiving cavity 21 by fixing the switch assembly 100 with the mounting seats 4. In addition, the identical structure of each mounting seat 4 effectively reduces the number of parts.

[0068] in, Figure 10The example provides an exemplary scheme for fixing the mounting base 4 to the housing 2. The mounting base 4 is Z-shaped and includes a first mounting plate 41, a second mounting plate 42, and a third mounting plate 43 connected in sequence. The first mounting plate 41 and the third mounting plate 43 are spaced apart and parallel to each other. The second mounting plate 42 is perpendicular to both the first mounting plate 41 and the third mounting plate 43 and is parallel to the panel 1. The first mounting plate 41 is welded to the housing 2. A portion of the second mounting plate 42 is welded to the housing 2, and the other portion of the second mounting plate 42 is suspended and has mounting holes for fixing the switch assembly 100. The third mounting plate 43 is used to enhance the overall structural strength of the mounting base 4. Preferably, the third mounting plate 43 abuts against the panel 1.

[0069] Figure 11 The example provides a scheme for fixing the mounting base 4 to the panel 1. The mounting base 4 is U-shaped and includes a first mounting plate 41, a second mounting plate 42, and a third mounting plate 43 connected in sequence. The first mounting plate 41 and the third mounting plate 43 are spaced apart and arranged in parallel. The second mounting plate 42 is perpendicular to both the first mounting plate 1001 and the third mounting plate 1003. The first mounting plate 41 is fixed to the panel 1 by adhesive. The third mounting plate 43 is suspended and has mounting holes for fixing the switch assembly 100.

[0070] In an alternative embodiment, please refer to Figures 5 to 8 The sealing cover 30 includes a cover plate 31 and a first insert 32 connected to the cover plate 31. The sealing ring 33 is provided with a first slot 331. Both the first insert 32 and the first slot 331 are arranged around the opening 22, and the first insert 32 is inserted into the first slot 331. With this arrangement, the connection between the first insert 32 and the first slot 331 of the sealing ring 33, and the bonding between the sealing ring 33 and the sealing cover 30, can ensure the stability of the connection between the sealing ring 33 and the sealing cover 30, thereby ensuring the sealing effect.

[0071] In an alternative embodiment, please refer to Figures 5 to 15The sealing cover assembly 3 also includes a second insert 34 connected to the cover plate 31. The second insert 34 is parallel to and spaced apart from the first insert 32. The sealing ring 33 is also provided with a second slot 336. The second insert 34 is inserted into the second slot 336, and the height of the second insert 34 protruding from the cover plate 31 is less than the height of the first insert 32 protruding from the cover plate 31. The second insert 34 and the second slot 336 are also arranged around the opening 22. The connection strength between the sealing cover 30 and the sealing ring 33 can be further improved by the simultaneous insertion and cooperation of the second insert 34 and the first insert 32. Furthermore, an insertion groove can also be formed between the second insert 34 and the first insert 32, and a part of the sealing ring 33 is inserted into the insertion groove, which can further improve the stability of the connection between the sealing ring 33 and the sealing cover 30. In addition, by making the height of the second insert 34 protruding from the cover plate 31 less than the height of the first insert 32 protruding from the cover plate 31, the overall strength and rigidity of the sealing cover 30 can be significantly enhanced, and it is convenient to assemble with the sealing ring 33.

[0072] Specifically, in this embodiment, the cover plate 31 and the second insert 34 are integrally formed. The second insert 34 is a flange disposed on the outer periphery of the cover plate 31. The first insert 32 is welded to the sealing cover 30, and the first insert 32 is located inside the second insert 34.

[0073] In an alternative embodiment, please refer to Figure 7 The first slot 331 includes a first slot wall 332, a second slot wall 333, a first guide slot wall 334, and a second guide slot wall 335. The first slot wall 332 and the second slot wall 333 are parallel and spaced apart. The first guide slot wall 334 is connected to the first slot wall 332 at an angle, and the second guide slot wall 335 is connected to the second slot wall 333 at an angle. The distance between the first guide slot wall 334 and the second guide slot wall 335 gradually decreases along the direction in which the first insert 32 is inserted into the first slot 331. The first guide slot wall 334 and the second guide slot wall 335 are used to guide the first insert 32 into the space between the first slot wall 332 and the second slot wall 333. With this configuration, when assembling the sealing ring 33, the first guide slot wall 334 and the second guide slot wall 335 guide the first insert 32 to be smoothly inserted between the first slot wall 332 and the second slot wall 333, thereby improving the ease of assembly.

[0074] Specifically, in this embodiment, the first guide groove wall 334 and the second guide groove wall 335 form a funnel-shaped groove. The distance between the first groove wall 332 and the second groove wall 333 is not greater than the thickness of the first insert 32, so that the first insert 32 can smoothly enter between the first groove wall 332 and the second groove wall 333 through the groove. In this embodiment, both the first guide groove wall 334 and the second guide groove wall 335 are formed by a straight chamfer. In other embodiments, the first guide groove wall 334 and the second guide groove wall 335 can also be formed by a rounded chamfer.

[0075] In an alternative embodiment, please refer to Figure 6 and Figure 13 The first groove wall 332, the first insert 32, and the cover plate 31 form a first glue-filling groove 51, and the second groove wall 333, the first insert 32, and the cover plate 31 form a second glue-filling groove 52. Both the first glue-filling groove 51 and the second glue-filling groove 52 are used to fill adhesive. This arrangement makes full use of the space formed by the first guide groove wall 334 and the second guide groove wall 335, the first insert 32, and the cover plate 31 for glue filling, eliminating the need to process a separate glue-filling groove on the sealing ring 33 or the sealing cover 30 for glue filling, resulting in a simple structure. Furthermore, the adhesive simultaneously connects the cover plate 31, the sealing ring 33, and the first insert 32 together, further improving the stability of the connection between the sealing cover 30 and the sealing ring 33.

[0076] In an alternative embodiment, please refer to Figure 7 The second slot 336 includes a third slot wall 337 and a third guide slot wall 338. The third guide slot wall 338 is connected to the third slot wall 337 at an angle, and the third guide slot wall 338 is used to guide the second insert 34 to contact the third slot wall 337. Specifically, in this embodiment, the first slot wall 332 is located between the third slot wall 337 and the second slot wall 333. The first end of the third guide slot wall 338 is connected to the third slot wall 337, and the second end of the third guide slot wall 338 is closer to the first slot wall 332 than the first end of the third guide slot wall 338. Therefore, when assembling the sealing ring 33, the second insert 34 can smoothly contact the third slot wall 337 by being guided by the third guide slot wall 338, thereby improving the convenience of assembly.

[0077] In an optional embodiment, the distance between the first groove wall 332 and the third groove wall 337 is not less than the distance between the second insert 34 and the first insert 32, so that the sealing ring 33 can be more securely assembled with the first insert 32 and the second insert 34.

[0078] In addition, in this embodiment, the third guide groove wall 338 is formed by a straight chamfer, while in other embodiments, the third guide groove wall 338 can also be formed by a rounded chamfer.

[0079] In an alternative embodiment, please refer to Figure 6 and Figure 13 The third groove wall 337, the second insert 34, and the cover plate 31 are configured to form a third adhesive filling groove 53, which is used to fill the adhesive. This configuration fully utilizes the space formed by the third guide groove wall 338, the second insert 34, and the cover plate 31 for adhesive filling, eliminating the need to separately machine an adhesive filling groove on the sealing ring 33 or the sealing cover 30, resulting in a simple structure. Of course, in other embodiments, an adhesive filling groove can also be directly provided on the sealing ring 33 or the sealing cover 30 as needed.

[0080] It should be noted that the adhesive poured into the first dispensing tank 51, the second dispensing tank 52, and the third dispensing tank 53 can be selected according to actual needs. In this embodiment, a scheme of dispensing with 502 glue is provided as an example; in other embodiments, polyurethane or other adhesives can also be used.

[0081] In an alternative embodiment, please refer to Figure 6 and Figure 8 The housing 2 is provided with a sealing groove 244, and the sealing ring 33 is inserted into the sealing groove 244. This arrangement ensures that the relative position of the sealing ring 33 and the housing 2 is stable after assembly, and forms a sealing path with the same contour as the sealing groove 244, thereby preventing oil, water, etc., from entering the receiving cavity 21 and ensuring a good seal. Preferably, the sealing ring 33 is interference-fitted into the sealing groove 244 to further ensure stable sealing performance.

[0082] In an alternative embodiment, please refer to Figure 6 and Figure 8 The housing 2 includes a first plate 241 and a second plate 242 arranged in parallel and spaced apart, and a third plate 243 connected between the first plate 241 and the second plate 242. The first plate 241, the second plate 242, and the third plate 243 form a sealing groove 244. Specifically, the sealing groove 244 is disposed on the surrounding plate 24, the third plate 243 is arranged parallel to the panel 1, the first plate 241 and the second plate 242 are both perpendicular to the third plate 243, and the opening 22 is formed by the second plate 242, so that the sealing groove 244 is U-shaped, thereby enabling the sealing ring 33 and the groove wall of the sealing groove 244 to form a U-shaped sealing path. In other embodiments, the sealing groove 244 can also be other shapes as needed.

[0083] Specifically, in this embodiment, the second insert 34 and the first insert 32 are both located between the first plate 241 and the second plate 242, with the second insert 34 being disposed adjacent to the first plate 241 and the first insert 32 being centrally located between the first plate 241 and the second plate 242.

[0084] In an alternative embodiment, please refer to Figures 6 to 8 The sealing ring 33 is also provided with a third slot 339, into which the second plate 242 is inserted. This arrangement not only improves the stability of the fit between the sealing ring 33 and the cover 2, but also extends the sealing path, thereby improving the reliability of the sealing effect.

[0085] In an alternative embodiment, please refer to Figures 6 to 8 The third plate 243 is provided with a groove 245, and the sealing ring 33 is also provided with a protrusion 340, which is inserted into the groove 245. Specifically, the groove 245 and the protrusion 340 are both arranged around the opening 22. By engaging the protrusion 340 with the groove 245, the sealing path can be made more tortuous and extended, thereby further improving the reliability of the sealing effect. Preferably, the third plate 243 is provided with multiple grooves 245 at intervals, and the sealing ring 33 is provided with multiple protrusions 340 at intervals, with each protrusion 340 corresponding to one of the multiple grooves 245. In this embodiment, an exemplary solution is provided where the third plate 243 is provided with two grooves 245 at intervals and the sealing ring 33 is provided with two protrusions 340 at intervals.

[0086] In an alternative embodiment, please refer to Figures 5 to 9 Along the circumference of the opening 22, the sealing ring 33 is provided with a plurality of first locking protrusions 341 at intervals, and the first plate 241 is provided with a plurality of first locking grooves 246 at intervals. The plurality of first locking protrusions 341 and the plurality of first locking grooves 246 are interference-fitted one-to-one. This arrangement can further improve the stability of the connection between the sealing ring 33 and the cover 2. Specifically, both the first locking protrusions 341 and the first locking grooves 246 are hemispherical, and the radius of the first locking protrusions 341 is 1.2 to 1.5 times the radius of the first locking grooves 246, so that the first locking protrusions 341 and the first locking grooves 246 are interference-fitted.

[0087] In an alternative embodiment, please refer to Figure 5 and Figure 9 Along the circumference of the opening 22, the sealing ring 33 is provided with a plurality of second locking protrusions 342 at intervals, and the second plate 242 is provided with a plurality of second locking grooves 247 at intervals. The plurality of second locking protrusions 342 and the plurality of second locking grooves 247 are interference-fitted one-to-one. This arrangement can further improve the stability of the connection between the sealing ring 33 and the cover 2. Specifically, the second locking protrusions 342 and the second locking grooves 247 are both hemispherical, and the radius of the second locking protrusions 342 is 1.2 to 1.5 times the radius of the second locking grooves 247, so that the second locking protrusions 342 and the second locking grooves 247 are interference-fitted.

[0088] In an alternative embodiment, please refer to Figure 6 , Figure 10 and Figure 13The sealing structure 200 also includes a heating element 6 embedded in the sealing ring 33, with the heating element 6 surrounding the opening 22. The heating element 6 can be an electric heating wire, a heating sleeve, or the like. This arrangement facilitates the adjustment of the temperature of the sealing ring 33, thereby adjusting the degree of thermal expansion of the sealing ring 33 and thus regulating the sealing effect. The number of heating elements 6 can be set according to actual needs; this embodiment exemplarily provides a scheme with two heating elements 6. The heating element 6 can be an electric heating wire.

[0089] 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 30, and the handle 7 is located outside the receiving cavity 21. This arrangement allows the sealing cover assembly 3 to be easily removed from the housing 2 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 31.

[0090] In an alternative embodiment, please refer to Figure 3 and Figure 4 The sealing structure 200 also includes a lighting lamp 8, and the housing 2 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 where two lighting lamps 8 are provided on the housing 2.

[0091] In an alternative embodiment, please refer to Figure 3 , Figure 4 and Figure 16 The housing 2 is provided with a cable outlet 248, and the sealing structure 200 also includes a cable guard 9 that is sealed and connected to the housing 2. The cable outlet 248 communicates with the inner cavity of the cable guard 9. Specifically, the cable outlet 248 is provided on the enclosure 24. The cable outlet 248 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 2 to prevent oil and water from entering the receiving cavity 21 along the wire harness 10, thus ensuring a sealing effect. Preferably, the cable outlet 248 is provided at the top of the housing 2.

[0092] 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 sealing structure, characterized in that, include: Panel (1); The cover (2) is sealed and fitted to the panel (1), and the cover (2) and the panel (1) form a receiving cavity (21). The cover (2) is provided with an opening (22) communicating with the receiving cavity (21). The sealing cap assembly (3) includes a sealing cap (30) for closing the opening (22) and a sealing ring (33) disposed between the sealing cap (30) and the housing (2), the sealing ring (33) surrounding the opening (22), the sealing ring (33) and the sealing cap (30) being inserted into and bonded together, and the sealing ring (33) being sealed and fitted to the housing (2).

2. The sealing structure according to claim 1, characterized in that, The sealing cover (30) includes a cover plate (31) and a first insert (32) connected to the cover plate (31). The sealing ring (33) is provided with a first slot (331). The first insert (32) and the first slot (331) are both arranged around the opening (22), and the first insert (32) is inserted into the first slot (331).

3. The sealing structure according to claim 2, characterized in that, The sealing cover (30) further includes a second insert (34) connected to the cover plate (31). The second insert (34) is parallel to and spaced apart from the first insert (32). The sealing ring (33) is also provided with a second slot (336). The second insert (34) is inserted into the second slot (336), and the height of the second insert (34) protruding from the cover plate (31) is less than the height of the first insert (32) protruding from the cover plate (31).

4. The sealing structure according to claim 3, characterized in that, The first slot (331) includes a first slot wall (332), a second slot wall (333), a first guide slot wall (334), and a second guide slot wall (335). The first slot wall (332) and the second slot wall (333) are parallel and spaced apart. The first guide slot wall (334) is connected to the first slot wall (332) at an angle, and the second guide slot wall (335) is connected to the second slot wall (333) at an angle. The distance between the first guide slot wall (334) and the second guide slot wall (335) gradually decreases along the direction in which the first insert (32) is inserted into the first slot (331). The first guide slot wall (334) and the second guide slot wall (335) are used to guide the first insert (32) to be inserted between the first slot wall (332) and the second slot wall (333); and / or, The second slot (336) includes a third slot wall (337) and a third guide slot wall (338), the third guide slot wall (338) being connected at an angle to the third slot wall (337), and the third guide slot wall (338) being used to guide the second insert (34) to contact the third slot wall (337).

5. The sealing structure according to claim 4, characterized in that, In the case where the first slot (331) includes a first slot wall (332), a second slot wall (333), a first guide slot wall (334), and a second guide slot wall (335), and the second slot (336) includes a third slot wall (337) and a third guide slot wall (338): The first groove wall (332), the first insert (32) and the cover plate (31) are arranged to form a first glue-filling groove (51), the second groove wall (333), the first insert (32) and the cover plate (31) are arranged to form a second glue-filling groove (52), and the third groove wall (337), the second insert (34) and the cover plate (31) are arranged to form a third glue-filling groove (53). The first glue-filling groove (51), the second glue-filling groove (52) and the third glue-filling groove (53) are all used to fill adhesive.

6. The sealing structure according to claim 1, characterized in that, The sealing structure further includes a heating element (6) embedded in the sealing ring (33), the heating element (6) being arranged around the opening (22); and / or, The sealing structure further includes a handle (7) fixedly connected to the sealing cover (30), the handle (7) being located outside the receiving cavity (21); and / or, The sealing structure further includes a lighting lamp (8), the housing (2) is provided with a mounting groove, and the lighting lamp (8) is embedded in the mounting groove; and / or, The cover (2) is provided with a cable outlet (248), and the sealing structure also includes a cable guard (9) that is sealed to the cover (2), and the cable outlet (248) communicates with the inner cavity of the cable guard (9).

7. The sealing structure according to any one of claims 1-6, characterized in that, The cover (2) is provided with a sealing groove (244), and the sealing ring (33) is inserted into the sealing groove (244).

8. The sealing structure according to claim 7, characterized in that, The cover (2) includes a first plate (241) and a second plate (242) arranged in parallel and spaced apart, and a third plate (243) connected between the first plate (241) and the second plate (242). The first plate (241), the second plate (242) and the third plate (243) form the sealing groove (244). The sealing ring (33) is further provided with a third slot (339), into which the second plate (242) is inserted; and / or, the third plate (243) is provided with a groove (245), and the sealing ring (33) is further provided with a protrusion (340), which is inserted into the groove (245); and / or, along the circumference of the opening (22), the sealing ring (33) is provided with a plurality of first latching protrusions (341) spaced apart, the first plate ( 241) A plurality of first slots (246) are provided at intervals, and a plurality of first protrusions (341) are interlocked with the plurality of first slots (246) in a one-to-one correspondence; and / or, along the circumference of the opening (22), the sealing ring (33) is provided with a plurality of second protrusions (342) at intervals, and the second plate (242) is provided with a plurality of second slots (247) at intervals, and a plurality of second protrusions (342) are interlocked with the plurality of second slots (247) in a one-to-one correspondence.

9. A range hood, characterized in that, The range hood includes the sealing structure according to any one of claims 1-8, and the range hood further includes a switch assembly (100) installed in the receiving cavity (21).

10. The range hood according to claim 9, characterized in that, The sealing structure further includes a plurality of mounting seats (4) located within the receiving cavity (21), each of the mounting seats (4) being fixedly connected to the panel (1) or the cover (2), and the switch assembly (100) being mounted on the plurality of the mounting seats (4); and / or, The range hood also includes a smoke collection hood (300), an oil filter (400), a main unit housing (500), and a fan. The smoke collection hood (300) includes a smoke inlet (301). The panel (1) is rotatably connected to the smoke collection hood (300) and is used to open or close the smoke inlet (301). The cover (2) is located on the side of the panel (1) facing the smoke collection hood (300). The oil filter (400) is connected to the smoke collection hood (300) and is located at the smoke inlet (301). 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).

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