Exhaust assembly and storage device

Abstract

An exhaust assembly (100) and a storage device (200). The exhaust assembly (100) comprises an outer housing (3), an inner housing (4), and an exhaust pump (5), wherein the inner housing (4) comprises an inner bottom housing (41) and a cover plate (42); the cover plate (42) comprises a cover plate body (421) arranged at a second opening (417) and closing a second cavity (410); a blocking edge (422) surrounding the second opening (417) is provided on the cover plate (42) and / or the inner bottom housing (41); at least one first connecting post (31) protrudes from an inner wall of the outer housing (3); an avoidance hole (414) for the first connecting post (31) to pass through is provided in the inner bottom housing (41); and the first connecting post (31) is fixedly connected to the cover plate body (421) via the avoidance hole (414). When the first connecting post (31) is fixedly connected to the cover plate body (421), the connecting force is directly applied to the cover plate body (421) and the outer housing (3) rather than the inner bottom housing (41), and the force is transmitted to the outer housing (3) and the blocking edge (422); and the connection point between the first connecting post (31) and the cover plate body (421) is closer to the outer housing (3) and the blocking edge (422), such that the deformation tendency of the outer housing (3) and the blocking edge (422), and in particular the blocking edge (422), is smaller, which can ensure that the exhaust assembly (100) is stably retained on a cavity wall (91) and is less likely to shake and fall off.

Description

An exhaust assembly and a storage device Technical Field

[0001] This application relates to the field of daily necessities technology, specifically to an exhaust assembly and a storage device. Background Technology

[0002] The statements herein are provided only as background information in connection with this application and do not necessarily constitute prior art.

[0003] Compression bags and resealable bags use an exhaust pump to release air and compress the material. Currently, products capable of this function are also appearing in items such as suitcases and handbags, reducing the space required for clothing and increasing the carrying capacity of these items.

[0004] These products need to be equipped with an exhaust system that connects to the interior of the suitcase or handbag and is fixed to it. This allows users to easily evacuate and seal the interior by opening the exhaust system, eliminating the need for users to purchase an additional exhaust system and preventing the risk of losing it.

[0005] The main considerations for installing venting components on suitcases and handbags are twofold: first, to ensure the airtightness of each connection point in the venting path, preventing air leakage during use that could lead to compression failure; and second, to ensure the venting components are securely installed, preventing them from falling off during transport and thus minimizing the impact on the airtightness of the venting path. Technical issues

[0006] One of the objectives of this application is to provide an exhaust assembly.

[0007] The second objective of this application is to provide a storage device. Technical solutions

[0008] The technical solution adopted in the embodiments of this application is:

[0009] In a first aspect, an exhaust assembly is provided for mounting on the cavity wall of a receiving device, comprising:

[0010] The outer casing has a first opening and a first cavity that are connected to each other;

[0011] An inner shell includes an inner bottom shell and a cover plate. The inner bottom shell has a second opening and a second cavity that are connected to each other. The cover plate includes a cover plate body for being disposed in the second opening and closing the second cavity. The inner bottom shell is at least partially disposed within the first cavity. The periphery of the cover plate body and / or the inner bottom shell also have a retaining edge surrounding the second opening. The adjacent surfaces of the outer shell and the retaining edge are used to clamp the cavity wall of the storage device.

[0012] An exhaust pump is at least partially located within the second cavity;

[0013] The inner wall of the outer shell has at least one first connecting post protruding, and the inner bottom shell has a clearance hole for the first connecting post to pass through. The first connecting post is fixedly connected to the cover plate body via the clearance hole.

[0014] In one embodiment, the inner wall of the housing is provided with a first protrusion protruding toward the cover plate, and the first connecting post is formed on the first protrusion.

[0015] In one embodiment, the first boss is formed by a portion of the outer shell recessed toward the inner shell.

[0016] In one embodiment, a portion of the upper part of the inner bottom shell protrudes toward the cover plate, forming a second protrusion corresponding to the first protrusion.

[0017] In one embodiment, at least one second connecting post is formed on the second protrusion, and the second connecting post is fixedly connected to the cover plate.

[0018] In one embodiment, the first protrusions are located on opposite sides of the exhaust pump; each of the first protrusions is provided with at least two first connecting posts; and the second connecting post is disposed between the first connecting posts.

[0019] In one embodiment, the first connecting post is provided with a first threaded hole, the cover plate is provided with a first mounting hole, the threaded section of the threaded component passes through the first mounting hole and is threadedly engaged in the first threaded hole, and the head of the threaded component abuts against the side of the cover plate away from the outer shell.

[0020] In one embodiment, the retaining edge is formed on the cover plate and connected to the periphery of the cover plate body; a first annular groove surrounding the first opening is provided on the surface of the housing facing the retaining edge and / or on the surface of the retaining edge facing the housing; the exhaust assembly further includes a first sealing ring, the first sealing ring being disposed in the first annular groove, and the natural height of the first sealing ring being greater than the depth of the first annular groove.

[0021] In one embodiment, at least one abutting rib is provided on the inner sidewall of the outer shell, the abutting rib being used to abut against the outer sidewall of the inner bottom shell.

[0022] In one embodiment, at least one guide rib is provided on the inner sidewall of the housing, the guide rib being located on the side of the abutment rib closer to the cover plate; the height of the guide rib gradually decreases in the direction closer to the cover plate.

[0023] In one embodiment, the outer shell is provided with a first exhaust port communicating with the first cavity, and the inner bottom shell is provided with a second exhaust port communicating with the second cavity; the exhaust assembly further includes a second sealing ring, which is compressed and disposed between the inner bottom shell and the outer shell, and surrounds the first exhaust port and the second exhaust port.

[0024] Another objective of this application is to provide an exhaust assembly for use on the cavity wall of a receiving device, characterized in that it comprises:

[0025] The outer shell has a first cavity inside, and a first opening and a first exhaust port that communicate with the first cavity;

[0026] The inner shell includes an inner bottom shell and a cover plate. The inner bottom shell has a second cavity inside and a second opening and a second exhaust port that communicate with the second cavity. The cover plate includes a cover plate body for being disposed in the second opening and closing the second cavity. The inner bottom shell is at least partially disposed in the first cavity. The first exhaust port and the second exhaust port correspond to and communicate with each other.

[0027] An exhaust pump, at least partially disposed within the second cavity, wherein the inlet of the exhaust pump is connected to the second exhaust port; and

[0028] The second sealing ring is compressed and disposed between the inner bottom shell and the outer shell, and surrounds the first exhaust port and the second exhaust port.

[0029] In one embodiment, a second annular groove is formed on the inner wall of the outer casing or the outer wall of the inner bottom casing, surrounding the first exhaust port, and the second sealing ring is partially located within the second annular groove.

[0030] In one embodiment, the exhaust pump includes a motor, an impeller, and a one-way valve connected in sequence, with the impeller disposed between the second exhaust port and the motor; the exhaust assembly further includes a third sealing ring, which is compressed between the frame of the impeller and the inner bottom shell and surrounds the second exhaust port; the one-way valve is disposed at the second exhaust port or the first exhaust port.

[0031] In one embodiment, the frame of the impeller is provided with a third annular groove surrounding the second exhaust port on the side facing the inner bottom shell and / or on the inner wall of the inner bottom shell, and the third sealing ring is partially located in the third annular groove.

[0032] In one embodiment, at least one abutting rib is provided on the inner sidewall of the outer shell opposite to the first exhaust port, the abutting rib being used to abut against the outer sidewall of the inner bottom shell.

[0033] Another object of this application is to provide a storage device, which includes a device body and an exhaust assembly as described in the above embodiments. The device body includes interconnected cavity walls and an airtight bag disposed in the space formed by the cavity walls. The cavity walls are provided with an opening, and the outer shell passes through the opening. The adjacent surfaces of the outer shell and the retaining edge together clamp the cavity walls.

[0034] Another object of this application is to provide a storage device, including a device body and an exhaust assembly as described in the above embodiments; the device body includes interconnected cavity walls and an airtight bag disposed in the space formed by the cavity walls, and the exhaust assembly is fixed to the cavity walls.

[0035] In one embodiment, the storage device includes a vent cover disposed inside the airtight bag, and at least one vent is provided on the side wall of the vent cover; the sealed cavity of the airtight bag is connected to the first exhaust port via the vent.

[0036] In one embodiment, the first exhaust port is connected to the sealing cavity of the airtight bag via an exhaust pipe; the cross-sectional areas of the first exhaust port, the second exhaust port, the air inlet of the exhaust pump, and the air outlet of the exhaust pump are all larger than the cross-sectional area of ​​the exhaust pipe. Beneficial effects

[0037] The beneficial effects of the exhaust assembly and storage device provided in this application embodiment are as follows:

[0038] In the exhaust assembly, the first connecting hole of the outer shell passes through the inner bottom shell and connects to the cover plate. When the first connecting post is fixedly connected to the cover plate body, the connecting force is directly applied to the cover plate body and the outer shell, rather than the inner bottom shell. Consequently, the force is transmitted to the outer shell and the baffle. Compared with the method of directly connecting the outer shell and the inner bottom shell, the connection point of the first connecting post and the cover plate body is closer to the outer shell and the baffle, and the deformation tendency of the outer shell and the baffle is smaller. In particular, the deformation tendency of the baffle is smaller, which can more stably clamp the cavity wall and ensure that the exhaust assembly is stably held on the cavity wall. Especially when the cavity wall is made of flexible material, the exhaust assembly of this application is not prone to shaking or falling off at the opening of the cavity wall, which is beneficial to ensure the airtightness of all parts of the exhaust path from the airtight bag to the exhaust assembly. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 is a perspective view of the exhaust assembly provided in an embodiment of this application;

[0041] Figure 2 is a perspective view of the exhaust assembly provided in an embodiment of this application from another angle;

[0042] Figure 3 is a partially exploded schematic diagram of the exhaust assembly provided in an embodiment of this application;

[0043] Figure 4 is a further exploded view of the exhaust assembly provided in the embodiment of this application;

[0044] Figure 5 is an exploded view of the exhaust assembly provided in an embodiment of this application from one angle;

[0045] Figure 6 is an exploded view of the exhaust assembly provided in an embodiment of this application from one angle;

[0046] Figure 7 is a schematic diagram of the back structure of the baffle in the exhaust assembly provided in the embodiment of this application;

[0047] Figure 8 is a cross-sectional view of the exhaust assembly provided in an embodiment of this application;

[0048] Figure 9 is a longitudinal cross-sectional view of the exhaust assembly provided in an embodiment of this application;

[0049] Figure 10 is a cross-sectional structural diagram of the outer casing of the exhaust assembly provided in the embodiment of this application;

[0050] Figure 11 is a schematic diagram of the storage device provided in an embodiment of this application, wherein the airtight bag is in an uncompressed state;

[0051] Figure 12 is a schematic diagram of the storage device provided in an embodiment of this application, wherein the airtight bag is in a compressed state. Embodiments of the present invention

[0052] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the scope of this application.

[0053] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are for ease of description only, not to 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 application. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0054] To illustrate the technical solutions provided in this application, the following detailed description is provided in conjunction with specific drawings and embodiments.

[0055] First, referring to Figures 11 and 12, this embodiment of the application provides a storage device 200, which includes a device body 9 and an exhaust assembly 100 disposed on the device body 9. The device body 9 includes a cavity wall 91 and an airtight bag 92. The airtight bag 92 is a flexible, compressible bag, and its internal sealed cavity 920 is connected to the exhaust assembly 100, which is fixedly disposed on one of the cavity walls 91. Through the exhaust assembly 100, gas within the sealed cavity 920 can be discharged, achieving exhaust compression of the airtight bag 92.

[0056] Multiple cavity walls 91 are interconnected and enclosed to define a space for storing the airtight bag 92. Specifically, the cavity walls 91 can be in the form of fully enclosing the airtight bag 92 or in the form of partially enclosing the airtight bag 92.

[0057] The form of the storage device 200 and its cavity wall 91 is not limited. For example, the storage device 200 can be a suitcase, as shown in Figures 11 and 12, and the cavity wall 91 includes the various boxes of the suitcase. Alternatively, in other alternative embodiments, the storage device 200 can be a portable storage structure such as a handbag or backpack. In more embodiments, the storage device 200 can also be a storage box, etc.

[0058] Specifically, an opening (not shown) is provided on the cavity wall 91, a part of the exhaust assembly 100 is located inside the cavity wall 91 and outside the sealed cavity 920, and another part is confined outside the cavity wall 91. By fixing these two parts together, the exhaust assembly 100 can be kept fixed on the cavity wall 91.

[0059] As shown in Figures 11 and 12, an exhaust pipe 93 is connected between the exhaust assembly 100 and the airtight bag 92. The exhaust pipe 93 can be a flexible pipe, such as a flexible plastic pipe. The flexible exhaust pipe 93 can adapt to the shape changes of the airtight bag 92 during the exhaust process, avoiding the interaction tension between the airtight bag 92 and the exhaust assembly 100, which would affect the airtightness at various points along the exhaust path.

[0060] An exhaust path is formed from the airtight bag 92 to the exhaust assembly 100. Air leakage may occur at the connection between the airtight bag 92 and the exhaust pipe 93, and at the connection between the exhaust pipe 93 and the exhaust assembly 100.

[0061] This application provides a solution for improving the airtightness of various points along the exhaust path.

[0062] Please refer to Figures 1, 4, and 5. The exhaust assembly 100 includes a housing 3, an inner housing 4, and an exhaust pump 5. The housing 3 contains a first cavity 30, and a first opening 37 communicating with the first cavity 30 is formed on the housing 3. The inner housing 4 includes an inner bottom shell 41 and a cover plate 42. The inner bottom shell 41 has a second cavity 410 and a second opening 417 communicating with the second cavity 410. The cover plate 42 includes a cover plate body 421 for being disposed in the second opening 417 and closing the second cavity 410. Furthermore, the inner bottom shell 41 and / or the periphery of the cover plate body 421 are provided with a retaining edge 422 surrounding the second opening 417. The exhaust pump 5 is disposed within the second cavity 410, and the cover plate body 421 is fixedly connected to the inner bottom shell 41.

[0063] As shown in Figures 8 and 9, at least a portion of the inner bottom shell 41 is disposed within the first cavity 30, and the outer shell 3 and the retaining edge 422 are located on opposite sides of the cavity wall 91, respectively. That is to say, when the outer shell 3 is fixedly connected to the inner shell 4, the end face of the outer shell 3 facing the cover plate body 421 and the surface of the retaining edge 422 facing the outer shell 3 can be used to clamp the cavity wall 91 of the storage device 200, so as to realize the fixed connection between the exhaust assembly 100 and the cavity wall 91.

[0064] When the outer shell 3 and the inner bottom shell 41 are connected in place, the distance between the end face of the outer shell 3 facing the cover plate body 421 and the surface of the flange 422 facing the outer shell 3 is set according to the specific scenario in which the exhaust assembly 100 is used, that is, according to the specific thickness of the cavity wall 91 in the specific type of storage device 200. In one embodiment, the thickness of the cavity wall 91 can be 0.1mm to 0.3mm, therefore, the distance between the end face of the outer shell 3 facing the cover plate body 421 and the surface of the flange 422 facing the outer shell 3 is 0.1mm to 0.3mm. Of course, this is only an example. In more cases, the thickness of the cavity wall 91 can have other ranges, and correspondingly, the distance between the end face of the outer shell 3 facing the cover plate body 421 and the surface of the flange 422 facing the outer shell 3 can be adapted.

[0065] The exhaust assembly 100 maintains its relative position to the inner shell 4 by fitting and accommodating the outer shell 3. Therefore, the position and maintenance of the exhaust pump 5 within the inner shell 4 affect the airtightness of the exhaust path between the exhaust pump 5 and the inner shell 4, the position and maintenance of the inner shell 4 within the outer shell 3 affect the airtightness of the exhaust path between the inner shell 4 and the outer shell 3, and whether the exhaust assembly 100 can be stably maintained on the cavity wall 91 affects the airtightness of the connection between the outer shell 3 and the exhaust pipe 93.

[0066] The embodiments of this application aim to improve the airtightness of one or more points on the exhaust path described above.

[0067] This application provides an exhaust assembly 100 that can be stably mounted on the cavity wall 91.

[0068] In one embodiment of this application, as shown in Figures 5, 6 and 8, at least one first connecting post 31 protrudes from the inner wall of the outer shell 3, and the inner bottom shell 41 is provided with a clearance hole 414 for the first connecting post 31 to pass through. The first connecting post 31 is fixedly connected to the cover plate body 421 via the clearance hole 414.

[0069] Thus, when the first connecting post 31 is fixedly connected to the cover plate body 421, the connecting force is directly applied to the cover plate body 421 and the outer shell 3, rather than the inner bottom shell 41. Consequently, the force is transmitted to the outer shell 3 and the retaining edge 422. Compared to directly connecting the outer shell 3 and the inner bottom shell 41, in the exhaust assembly 100 provided in this embodiment, the connection point between the first connecting post 31 and the cover plate body 421 is closer to the outer shell 3 and the retaining edge 422, resulting in less deformation of the outer shell 3 and the retaining edge 422, especially the retaining edge 422. This allows for more stable clamping of the cavity wall 91. This ensures that the exhaust assembly 100 is stably held on the cavity wall 91. Especially when the cavity wall 91 is made of a flexible material, the exhaust assembly 100 of this application is less prone to shaking or falling off at the opening of the cavity wall 91.

[0070] The exhaust assembly 100 can be stably held on the cavity wall 91, which also indirectly ensures the airtightness of the exhaust path, because it can ensure the stability of the connection between the exhaust assembly 100 and the exhaust pipe 93.

[0071] It should also be noted that, as shown in Figures 5, 8 and 9, at least a portion of the inner bottom shell 41 is located inside the outer shell 3, and at least a portion of the exhaust pump 5 is located inside the inner bottom shell 41. The inner bottom shell 41 and the outer shell 3 together protect the exhaust pump 5, thereby improving the protection capability of the exhaust pump 5.

[0072] In one embodiment, the outer shell 3, the inner bottom shell 41, and the cover plate 42 are all made of rigid plastic and manufactured by injection molding. In other alternative embodiments, where permitted, the outer shell 3, the inner bottom shell 41, and the cover plate 42 can be formed using other materials and methods. For example, the cover plate 42 can be made of metal and manufactured by machining; the outer shell 3 or the inner bottom shell 41 can be made of metal and is formed by welding multiple metal sheets, etc. This application does not impose any particular limitation on the materials and molding methods of the outer shell 3, the inner bottom shell 41, and the cover plate 42.

[0073] The connection method between the first connecting post 31 and the cover plate body 421 is not limited.

[0074] For example, as shown in Figures 4, 5, and 6, the end face of the first connecting post 31 facing the cover plate body 421 is provided with a first threaded hole 310, and the cover plate body 421 is provided with a corresponding first mounting hole 4211. The threaded section of the threaded component (not shown) passes through the first mounting hole 4211 and is threadedly engaged in the first threaded hole 310, with the head of the threaded component abutting against the side surface of the cover plate 42 facing away from the outer shell 3. In this way, a fixed connection and a detachable connection are achieved between the cover plate body 421 and the outer shell 3.

[0075] Alternatively, the first connecting post 31 has a pin hole (not shown) on one end facing the cover plate body 421, and the cover plate body 421 has a corresponding first mounting hole 4211. The end of the first connecting post 31 facing the cover plate body 421 passes through the first mounting hole 4211 and protrudes from the surface of the cover plate body 421. The locking pin (not shown) passes through the pin hole along the surface of the cover plate body 421 and abuts against the side surface of the cover plate body 421 facing away from the outer shell 3.

[0076] In other embodiments, the first connecting post 31 and the cover plate body 421 can have more other connection methods. Optionally, the first connecting post 31 and the cover plate body 421 are detachably connected.

[0077] In one embodiment, the aforementioned retaining edge 422 is disposed on the inner bottom shell 41. In this case, the size of the cover plate body 421 is set to be larger than the size of the second opening 417, and it is disposed on the second opening 417.

[0078] In one embodiment, the aforementioned retaining edge 422 is disposed on the cover plate 42 and connected to the periphery of the cover plate body 421.

[0079] In one embodiment, the aforementioned retaining edge 422 may be provided on both the inner bottom shell 41 and the cover plate 42.

[0080] In one embodiment, the aforementioned retaining edge 422 is at least disposed on the cover plate 42 and connected to the periphery of the cover plate body 421. Optionally, the retaining edge 422 and the cover plate body 421 are integrally formed.

[0081] To reduce the space occupied by the exhaust assembly 100 outside the cavity wall 91, in one embodiment, the aforementioned baffle 422 is provided on the cover plate 42, as shown in Figures 4, 5, and 6. In this case, the baffle 422 is a single-layer structure and does not form a noticeable protrusion outside the cavity wall 91. Simultaneously, the baffle 422 is no longer provided on the inner bottom shell 41, simplifying its structure and reducing its manufacturing difficulty and cost.

[0082] Referring to Figures 4 to 6, the retaining edge 422 forms a closed ring at the edge of the cover plate body 421. That is, the retaining edge 422 is an integral ring edge, and the retaining edge 422 has a higher resistance to deformation.

[0083] The exhaust pump 5 is fixed to the cavity wall 91 through the outer shell 3 and the inner bottom shell 41. The exhaust pump 5 is connected to the sealed cavity 920 of the airtight bag 92 through the exhaust pipe 93, thereby venting the air in the sealed cavity 920.

[0084] Referring to Figures 5 and 6, in one embodiment, the outer shell 3 is further provided with a first exhaust port 33 communicating with the first cavity 30, and the inner bottom shell 41 is provided with a second exhaust port 413 communicating with the second cavity 410. The exhaust pump 5 has an air inlet (not shown) and a third exhaust port 54, and the first exhaust port 33, the second exhaust port 413, and the air inlet of the exhaust pump 5 are sequentially connected. An exhaust pipe 93 is disposed outside the outer shell 3, and one end of the exhaust pipe 93 is sealed to the first exhaust port 33. The other end of the exhaust pipe 93 is disposed on the airtight bag 92 and communicates with the sealed cavity 920.

[0085] Referring to Figures 5 and 10, in one embodiment, at least one guide rib 35 is provided on the inner wall of the outer casing 3, specifically on the inner wall opposite to the first exhaust port 33. The height of the guide rib 35 (the height of its protrusion on the inner wall of the outer casing 3) gradually increases in the direction away from the cover plate 42, that is, it gradually increases downwards. Thus, when the inner bottom shell 41 is inserted into the first cavity 30 through the first opening 37, the inner bottom shell 41 moves downwards along the guide surface of the guide rib 35 toward the first exhaust port 33 and gradually presses against the inner wall of the outer casing 3. This facilitates the installation of the inner bottom shell 41 inside the outer casing 3 and helps to ensure airtightness at all points along the exhaust path.

[0086] In one optional embodiment, there are multiple guide ribs 35, which are spaced apart to guide and support the inner bottom shell 41 from multiple points.

[0087] Referring to Figures 5 and 10, one or more abutment ribs 36 are provided on the inner wall of the outer shell 3 on the side opposite to the first exhaust port 33. The abutment ribs 36 are located on the side of the guide ribs 35 near the inner bottom wall of the outer shell 3. The abutment ribs 36 are used to abut the inner bottom shell 41 when it reaches the bottom of the outer shell 3. In other words, the height of the abutment ribs 36 can be equal to the height of the highest point of the guide ribs 35, that is, the height of the lowest point of the guide ribs 35. The placement of the abutment ribs 36 on the inner wall of the inner bottom shell 41 concentrates the force between the inner bottom shell 41 and the outer shell 3 at the abutment ribs 36. Therefore, the outer shell 3 and its abutment ribs 36 are more likely to undergo relative micro-deformation with the inner bottom shell 41, which provides the clamping force between the inner bottom shell 41 and the outer shell 3. In this way, the inner bottom shell 41 and the outer shell 3 are pressed together. This further provides the stability of the connection between the inner shell 4 and the outer shell 3.

[0088] Furthermore, the setting of the supporting rib 36 allows for more flexible size adaptation design between the outer shell 3 and the inner bottom shell 41, which helps to reduce the difficulty of matching the size of the two and reduce the processing and manufacturing difficulty of the two.

[0089] In one specific embodiment, the number of guide ribs 35 and the number of abutment ribs 36 are the same, and they are connected one-to-one, as shown in Figures 5 and 10. The one-to-one connection of guide ribs 35 and abutment ribs 36 into a single rib structure helps to reduce the complexity of the inner wall of the inner bottom shell 41 and reduce the processing and manufacturing difficulty of the inner bottom shell 41.

[0090] Optionally, as shown in Figures 2, 3, and 4, the exhaust assembly 100 further includes a nozzle 6, which is disposed on the outer wall of the housing 3 and sealed to the first exhaust port 33. The other end of the nozzle 6 is used to connect to the exhaust pipe 93. Through the connection of the nozzle 6, it is easier to achieve a fixed and sealed connection between the exhaust pipe 93 and the housing 3.

[0091] Referring to Figures 5 and 6, in one embodiment, the exhaust pump 5 includes a motor 51, an impeller 52, and a one-way valve 53. The one-way valve 53 is located at the first exhaust port 33 (or possibly at the second exhaust port 413), and the impeller 52 and the motor 51 are located within the second cavity 410. The motor 51 drives the impeller 52 to rotate, unidirectionally exhausting gas through the one-way valve 53.

[0092] In one embodiment, the one-way valve 53 may partially pass through the housing 3 and be located inside the air nozzle 6, aligned and communicating with both the second exhaust port 413 and the first exhaust port 33, as shown in Figure 9. Furthermore, depending on the structure of the one-way valve 53, in other alternative embodiments, the one-way valve 53 may have other configurations.

[0093] Referring to Figures 4, 5, and 6, in one embodiment, the exhaust assembly 100 further includes a circuit board 8 disposed within the second cavity 410 and connected to the exhaust pump 5. The circuit board 8 is used to provide electrical power to the exhaust pump 5 to control the operation of the motor 51 of the exhaust pump 5.

[0094] In one alternative embodiment, the circuit board 8 is disposed between the motor 51 and the cover plate body 421, as shown in Figures 8 and 9.

[0095] This is because circuit board 8 is typically equipped with accessories such as switch 81 and / or power interface 82, and optionally indicator lights (not shown). Circuit board 8 is used to control the start and stop of motor 51. Based on this, circuit board 8 is located on the side of motor 51 near cover plate body 421, allowing the switches 81, power interface 82, indicator lights, etc. to be exposed through cover plate 42 for easy user operation.

[0096] The power interface 82 is used to connect the circuit board 8 to an external power source (such as a power bank or charging socket); the switch 81 is used to connect or disconnect the circuit board 8 from the external power source, preventing the circuit board 8 from being burned out due to a momentary connection between the external power source and the circuit board 8. In this embodiment, the exhaust assembly 100 operates using an external power source, and there is no need to install a battery or other structure inside the second cavity 410, which can reduce the size of the exhaust assembly 100 and also facilitate the transport of the storage device 200.

[0097] In other alternative embodiments, the exhaust assembly 100 may house a secondary battery (not shown) or a battery compartment (not shown) for a primary battery. This allows the power interface 82 to be omitted.

[0098] Optionally, in one embodiment, as shown in Figures 3 and 4, the exhaust assembly 100 further includes a shield 43 disposed on the side of the cover body 421 away from the outer casing 3, for shielding the power interface 82, switch 81, indicator light, etc., so that when the exhaust assembly 100 is not in use, the relevant structures of the circuit board 8 are not exposed, while when it is needed, the shield 43 can be flipped or bent to expose the power interface 82, switch 81, indicator light, etc.

[0099] In one alternative embodiment, the shielding plate 43 is a flexible plate, such as a flexible plastic plate or a silicone plate, with one end fixed to the cover plate body 421; or, the shielding plate 43 is a rigid plate, with one end rotatably connected to the cover plate body 421.

[0100] As shown in Figures 4, 5, and 6, a groove 420 is provided on the surface of the cover plate 42 facing away from the outer shell 3, and the baffle plate 43 is disposed within the groove 420. The purpose of this design is to ensure that the surface of the baffle plate 43, when not in the open state, is flush with or even lower than the surface of the retaining edge 422, as shown in Figures 1, 8, and 9. More specifically, the groove 420 can be formed based on the height misalignment between the cover plate body 421 and the retaining edge 422. Having the baffle plate 43 flush with or even lower than the retaining edge 422 prevents the baffle plate 43 from being worn or opened unintentionally.

[0101] Please refer to Figure 1. A handle groove 425 is provided on the side of the cover plate 42 facing away from the outer shell 3. The handle groove 425 communicates with the recess 420. There is a gap between the inner wall of the handle groove 425 and the outer wall of the cover plate 43. This gap serves as a handle position, allowing the user to open the cover plate 43 by inserting their finger.

[0102] The shape and position of the handle groove 425 are not limited; it can be a strip groove, a circular groove, etc., extending outward from one side edge of the sink 420.

[0103] Please refer to Figures 5 and 6. There are multiple first connecting posts 31, which are used to form multi-point connections with the cover plate body 421. This can improve the connection stability between the outer shell 3 and the cover plate 42, and make the cover plate 42 bear force evenly at multiple points, which can further avoid the risk of local deformation of the cover plate 42.

[0104] As shown in Figures 4 and 8, in one optional embodiment, a plurality of first connecting posts 31 are distributed on opposite sides of the motor 51. This ensures that the connection point between the first connecting posts 31 and the cover body 421 is located near the outer edge of the cover body 421, that is, near the flange 422. This can further reduce the risk of deformation of the flange 422 and improve the clamping stability of the housing 3 and the flange 422 on the cavity wall 91.

[0105] Specifically, if the axis of motor 51 is defined as the front-to-back direction, then multiple first connecting posts 31 can be distributed on the left and right sides of motor 51, as shown in Figures 4, 5, and 6. In this way, the position of the first connecting posts 31 will not affect the sequential connection between motor 51 and impeller 52 in the front-to-back direction, and the front-to-back and left-to-right dimensions of housing 3 can be roughly similar, without the case of a particularly large front-to-back dimension.

[0106] More specifically, two first connecting posts 31 are provided on the left and right sides of the motor 51, and the two first connecting posts 31 are distributed at intervals in the front-back direction, as shown in Figures 4, 5 and 6. This can further make the distribution of the first connecting posts 31 more uniform overall.

[0107] In other alternative embodiments, the number of first connecting posts 31 may have other values ​​depending on the overall size of the exhaust assembly 100 and the connection requirements. For example, three first connecting posts 31 may be provided on the left and right sides of the motor 51, etc., which will not be listed in detail here.

[0108] In addition, please refer to Figures 5, 6 and 8. Multiple second connecting posts 411 are protruding on the inner wall of the inner bottom shell 41. The second connecting posts 411 are used to connect with the circuit board 8 to fix the circuit board 8 on the inner bottom shell 41.

[0109] Specifically, as shown in Figure 5, the end face of the second connecting post 411 facing the cover plate body 421 is provided with a second threaded hole 4110. A threaded component (such as a bolt) passes through the circuit board 8 from one side surface of the circuit board 8 facing the cover plate 42 and engages in the second threaded hole 4110.

[0110] In one embodiment, the cover plate 42 and the inner bottom shell 41 are detachably connected. For example, a plurality of third connecting posts (not shown) protrude from the inner wall of the inner bottom shell 41, and the third connecting posts are provided with third threaded holes. The cover plate 42 is provided with a second mounting hole (not shown). A threaded component (such as a bolt) passes through the second mounting hole from the side of the cover plate 42 away from the outer shell 3 and engages in the third threaded hole.

[0111] In one embodiment, the flange 422 and the inner bottom shell 41 are non-detachable. The flange 422 and the inner bottom shell 41 are manufactured independently and fixedly connected together by means such as welding or bonding. Optionally, the flange 422 and the inner bottom shell 41 are fixedly connected together by ultrasonic welding.

[0112] The purpose of this arrangement is twofold: firstly, the inner shell 3 and its internal structure are a non-removable whole, and the inner shell 3 can be easily pulled out from the outer shell 4 using the cover plate 42; secondly, there is no gap between the cover plate 42 and the inner bottom shell 41. Since the cover plate 42 is exposed outside the cavity wall 91, the seamless arrangement can prevent rainwater, dust, etc. from entering between the cover plate 42 and the inner bottom shell 41, thereby avoiding adverse effects on the internal structure, especially the motor 51, circuit board 8, etc.

[0113] Please refer to Figures 5, 6, and 8. In one embodiment, a first protrusion 32 is provided on the inner wall of the outer casing 3, and each first connecting post 31 is formed on the first protrusion 32. The purpose of this arrangement is to reduce the height of the first connecting post 31, avoid the problem of bending and breaking of the first connecting post 31, and at the same time, reduce the molding difficulty of the first connecting post 31, ensuring that the first connecting post 31 is fully formed, for example, when the outer casing 3 and its first connecting post 31 are manufactured by injection molding.

[0114] With the outer shell 3 and the inner bottom shell 41 assembled, the first boss 32 is located on the left and right sides of the motor 51.

[0115] Referring to Figures 1, 2, and 3, in one embodiment, the first protrusion 32 is formed by a recess in the upper part of the outer shell 3 towards the inner shell 4. That is, the outer surface of the outer shell 3 is recessed, and a corresponding recess in part of the inner wall of the outer shell 3 forms the aforementioned first protrusion 32. The purpose of this design is threefold: first, compared to a flat outer surface, the recessed portion of the outer surface of the outer shell 3 essentially forms a reinforcing structure, giving the outer shell 3 stronger compressive strength and preventing deformation under stress, thus avoiding damage to the motor 51, etc.; second, the recessed outer shell 3 also saves space, avoiding excessive space occupation within the device body 9; and third, the outer shell 3 can maintain a lower weight and lower material cost.

[0116] As shown in Figures 2, 5, and 6, the dimension of the first boss 32 in the front-to-back direction is smaller than that of the outer casing 3 in the front-to-back direction. This allows the first boss 32 to have more sidewalls, thereby further improving its compressive strength. Based on this, sufficient space can be reserved within the first cavity 30 for the impeller 52. The diameter of the impeller 52 can be larger than the diameter of the motor 51, giving the exhaust pump 5 a stronger exhaust capacity.

[0117] The height of the first boss 32 (height refers to the direction perpendicular to the axis of the motor 51 and pointing towards the cover plate body 421) needs to be determined by comprehensively considering the height requirements of the first connecting post 31 and the manufacturing difficulty of the outer shell 3. The larger the height of the first boss 32, the smaller the height of the first connecting post 31, the smaller the depth of the first threaded hole 310, and the more difficult it is to manufacture the outer shell 3; the smaller the height of the first boss 32, the larger the height of the first connecting post 31, the more easily the first connecting post 31 is to break under stress, and the easier it is to manufacture the outer shell 3.

[0118] In one optional embodiment, the height of the first boss 32 is one-quarter to two-thirds of the height of the outer casing 3. More optionally, the height of the first boss 32 is one-third to two-thirds of the height of the outer casing 3. In a specific embodiment, the height of the first boss 32 is one-half of the height of the outer casing 3.

[0119] Please refer to Figures 4, 5, and 6. A portion of the upper area of ​​the inner bottom shell 41 is recessed towards the cover plate 42, forming a second protrusion 412 corresponding to the first protrusion 32. That is, the shape of the inner bottom shell 41 is adapted to the outer shell 3. Therefore, this also enhances the compressive strength of the inner bottom shell 41, saves space occupied by the inner bottom shell 41, and reduces the weight and material cost of the inner bottom shell 41.

[0120] In addition, the inner bottom shell 41 and the outer shell 3 are perfectly matched and fit together. The inner bottom shell 41 and the outer shell 3 form a double containment and protection layer for the motor 51, which can further resist external pressure and prevent pressure from being transmitted to the motor 51 and the circuit board 8 and causing damage to the motor 51 and the circuit board 8.

[0121] The motor 51 is confined between the adjacent surfaces of the second boss 412. By confining the second boss 412 and its surface, there is no need to provide fixing structures for the left and right sides of the motor 51 on the inner wall of the inner bottom shell 41, which helps to simplify the complexity of the inner wall of the inner bottom shell 41 and reduce the processing and manufacturing cost of the inner bottom shell 41.

[0122] Optionally, the left and right sides of the motor 51 are flat and abut against the adjacent side surface of the second boss 412, which can achieve stable support for the left and right sides of the motor 51.

[0123] The bottom surface of the motor 51, that is, the side of the motor 51 facing away from the cover plate 42, can be further fixed by the inner wall of the inner bottom shell 41. For example, the side surface of the motor 51 facing away from the cover plate 42 is arc-shaped, and at least one fixing plate 415 can be provided on the inner bottom wall of the inner bottom shell 41, as shown in Figures 5, 6 and 9. The fixing plate 415 has a rectangular fixing surface for abutting against the side surface of the motor 51 facing away from the cover plate 42.

[0124] In other embodiments, the left and right sides and the bottom surface of the motor 51 may have other shapes. Correspondingly, the mutually close side surfaces of the second boss 412 and the inner bottom wall of the inner bottom shell 41 may form matching structures, which will not be described in detail here.

[0125] The stable installation of the motor 51 and impeller 52 inside the inner bottom shell 41 also helps to maintain the airtightness of the exhaust path, because the motor 51, impeller 52 and other components are stably connected to the one-way valve 53 and exhaust pipe 93.

[0126] Please refer to Figures 4, 5, and 6. The second connecting post 411 is formed on the second boss 412. The purpose of this arrangement is to reduce the height of the second connecting post 411, avoiding the problem of bending and breaking of the second connecting post 411. At the same time, it can also reduce the molding difficulty of the second connecting post 411 and ensure that the second connecting post 411 is fully formed, for example, when the inner bottom shell 41 and its second connecting post 411 are manufactured by injection molding.

[0127] In one specific embodiment, the first connecting post 31 is bolted to the cover plate body 421. The first mounting holes 4211 are all connected to the settling tank 420, and the baffle plate 43 can cover the bolts and other components in the first mounting holes 4211. Optionally, the cover plate 42 is also provided with a fourth exhaust port 4213, as shown in Figure 4. The fourth exhaust port 4213 is connected to the second cavity 410 and is used by the exhaust pump 5 to exhaust air to the outside. For example, it can be directly connected to the third exhaust port 54. The fourth exhaust port 4213 can be located inside the settling tank 420 and can be blocked by the baffle plate 43.

[0128] In one embodiment, the cross-sectional areas of the first exhaust port 33, the second exhaust port 413, the air inlet of the exhaust pump 5, the third exhaust port 54, the fourth exhaust port 4213, and the valve orifice of the one-way valve 53 are all larger than the cross-sectional area of ​​the exhaust pipe 93. This ensures that the gas inside the airtight bag 92 is discharged more quickly through the exhaust pipe 93, and the first exhaust port 33, the second exhaust port 413, the air inlet of the exhaust pump 5, the third exhaust port 54, the fourth exhaust port 4213, and the valve orifice of the one-way valve 53 do not affect the gas discharge rate.

[0129] Please refer to Figure 7. In one embodiment, the surface of the baffle plate 43 facing the cover plate body 421 is provided with one or more limiting protrusions 432. The limiting protrusions 432 cooperate with the positioning grooves provided on the surface of the cover plate body 421. For example, the limiting protrusions 432 are located in the positioning grooves and are squeezed and deformed, which makes the baffle plate 43 stably held in the sink 420 and not easily opened without human force.

[0130] The positioning groove may include a fourth exhaust port 4213, that is, the positioning protrusion is inserted into the fourth exhaust port 4213. Alternatively, it may include a third exhaust port 54 and a fourth exhaust port 4213, that is, the positioning protrusion is inserted into both the fourth exhaust port 4213 and the third exhaust port 54. This further ensures that the third exhaust port 54 of the exhaust pump 5 is sealed, preventing foreign objects, water, etc., from entering the exhaust pump 5.

[0131] Optionally, as shown in FIG7, the surface of the shield 43 facing the cover plate body 421 is further provided with a mounting protrusion 431. The mounting protrusion 431 is used to connect with the cover plate 42 so that the shield 43 is connected to the cover plate 42, and even when one end of the shield 43 is opened, the other end of the shield 43 can still remain connected to the cover plate 42.

[0132] As shown in Figures 5 and 6, the cover plate body 421 has a through fixing hole 426. A mounting protrusion 431 passes through the fixing hole 426, and the diameter of the portion of the mounting protrusion 431 located on the side of the cover plate body 421 facing the outer casing 4 is set to be larger to prevent the mounting protrusion 431 from easily detaching from the fixing hole 426. When a certain force is applied by the user, the mounting protrusion 431 can deform and detach from the fixing hole 426.

[0133] Referring to Figures 4, 5, and 6, a first annular groove 34 surrounding the first opening 37 is provided on the end face of the housing 3 facing the flange 422 and / or on the surface of the flange 422 facing the housing 3. The exhaust assembly 100 also includes a first sealing ring 71. Referring to Figures 8 and 9, the first sealing ring 71 is disposed within the first annular groove 34; and the natural height of the first sealing ring 71 is greater than the depth of the first annular groove 34. Of course, the height of the compressed first sealing ring 71 is also greater than the depth of the first annular groove 34. That is, regardless of the state of the first sealing ring 71, a portion of it is located within the first annular groove 34 to ensure that it can be compressed as much as possible. When the housing 3 and the cover plate body 421 are fixedly connected, the flange 422 approaches the housing 3 and compresses the first sealing ring 71.

[0134] When the first annular groove 34 and the first sealing ring 71 are disposed on the end face of the housing 3 facing the flange 422, the first sealing ring 71 is compressed between the housing 3 and the cavity wall 91. This compression increases the friction between the housing 3 and the cavity wall 91, thereby further improving the connection stability between them. Similarly, when the first annular groove 34 and the first sealing ring 71 are disposed on the flange 422, the first sealing ring 71 is compressed between the flange 422 and the cavity wall 91. This compression also increases the friction between the flange 422 and the cavity wall 91, further improving the connection stability between them.

[0135] In addition, the first sealing ring 71 can be compressed between the flange 422 and the cavity wall 91, which can improve the flexibility of the distance design between the outer shell 3 and the flange 422, and reduce the precision of the machining design and manufacturing cost of the outer shell 3, the inner bottom shell 41, and the flange 422.

[0136] Please refer to Figure 10. In order to ensure the width of the first annular groove 34 and the width of the first sealing ring 71, in one embodiment, the end of the housing 3 facing the flange 422 can be widened.

[0137] The outer edge of the retaining edge 422 may be flush with the outer edge of the outer shell 3, or the outer edge of the retaining edge 422 may extend beyond the outer edge of the outer shell 3. Furthermore, the outer dimensions of both the retaining edge 422 and the outer dimensions of the outer shell 3 are larger than the size of the opening on the cavity wall 91, ensuring that neither the outer shell 3 nor the retaining edge 422 can pass through the opening. In one optional embodiment, the outer edge of the retaining edge 422 extends beyond the outer edge of the outer shell 3 by 0.1mm to 0.2mm. Of course, this is merely an example; depending on specific needs, the outer edge of the retaining edge 422 may extend beyond the outer edge of the outer shell 3 by other values.

[0138] Please refer to Figures 5, 6 and 9. In one embodiment, the exhaust assembly 100 further includes a second sealing ring 72, which is disposed between the inner wall of the outer casing 3 and the outer wall of the inner bottom casing 41, and is disposed around the first exhaust port 33 and the second exhaust port 413.

[0139] Since the inner shell 4 is installed into the first cavity 30 through the first opening 37 on the outer shell 3, the inner shell 4 and the outer shell 3 can be connected together by a fastening force in the opening direction of the first opening 37. In the direction from the inner wall of the outer shell 3 to the outer wall of the inner shell 4, how the fastening force is applied and the magnitude of the fastening force will affect the airtightness of the exhaust path between the inner shell 4 and the outer shell 3.

[0140] In this embodiment, a second sealing ring 72 is provided between the inner bottom shell 41 and the outer shell 3, surrounding the first exhaust port 33 and the second exhaust port 413. This ensures a sealed connection between the first exhaust port 33 and the exhaust pump 5, guarantees the airtightness of the exhaust passage, and avoids the problem of airtight bag 92 compression failure due to exhaust failure. Conversely, the compressed second sealing ring 72 presses the outer shell 3 and the inner bottom shell 41 together, which allows for a more secure assembly between the outer shell 3 and the inner bottom shell 41. This, in turn, ensures the sealing of the connection between the outer shell 3 and the inner bottom shell 41 in the exhaust path. This application provides another solution to ensure the connection stability between the inner shell 4 and the outer shell 3.

[0141] The second sealing ring 72 and the aforementioned first connecting post 31 fix the inner shell 4 and the outer shell 3 together from different directions. The second sealing ring 72 and the aforementioned first connecting post 31 can be used alone or in combination.

[0142] A second annular groove 416 is formed on the inner wall of the outer shell 3 or the outer wall of the inner bottom shell 41, surrounding the first exhaust port 33 and the second exhaust port 413, as shown in Figures 5 and 6. A second sealing ring 72 is disposed within the second annular groove 416, and the natural height of the second sealing ring 72 is greater than the depth of the second annular groove 416. Naturally, the height of the compressed second sealing ring 72 is also greater than the depth of the second annular groove 416. That is, regardless of the state of the second sealing ring 72, a portion of it is located within the second annular groove 416 to ensure it can be compressed as much as possible. When the outer shell 3 and the inner bottom shell 41 are installed in place, the second sealing ring 72 is compressed. This ensures a seal from the first exhaust port 33 to the second exhaust port 413, and consequently, a seal at all points along the entire exhaust path.

[0143] Next, referring to Figures 5 and 6, in one embodiment, the exhaust assembly 100 further includes a third sealing ring 73 disposed between the impeller 52 and the inner bottom shell 41, and surrounding the second exhaust port 413.

[0144] In this design, a third annular groove (not shown) is formed on the surface of the impeller 52 frame facing the inner bottom shell 41 or on the inner wall of the inner bottom shell 41, surrounding the second exhaust port 413. A third sealing ring 73 is disposed within the third annular groove, and the natural height and compressed height of the third sealing ring 73 are both greater than the depth of the third annular groove. When the impeller 52 and the inner bottom shell 41 are installed in place, the third sealing ring 73 is compressed. This ensures a seal from the second exhaust port 413 to the impeller 52, thereby ensuring a seal at all points along the entire exhaust path.

[0145] Please refer to Figures 11 and 12. The airtight bag 92 is also equipped with a vent cover 94. The vent cover 94 has a certain height, and its peripheral wall has at least one vent (not shown). This vent connects the sealed cavity 920 of the airtight bag 92 to the exhaust pipe 93. By providing a vent cover 94 with a vent, items inside the airtight bag 92, such as clothing, can be prevented from sealing the connection between the exhaust pipe 93 and the airtight bag 92 as air is expelled, thus making the exhaust process smoother.

[0146] The height of the vent cover 94 is not limited, as long as it is easy to process to form a vent and does not occupy too much space inside the airtight bag 92. For example, in an optional embodiment, the height of the vent cover 94 is 1mm to 50mm.

[0147] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An exhaust assembly for mounting on the cavity wall of a receiving device, characterized in that, include: The outer casing has a first opening and a first cavity that are connected to each other; An inner shell includes an inner bottom shell and a cover plate. The inner bottom shell has a second opening and a second cavity that are connected to each other. The cover plate includes a cover plate body for being disposed in the second opening and closing the second cavity. The inner bottom shell is at least partially disposed within the first cavity. The periphery of the cover plate body and / or the inner bottom shell also have a retaining edge surrounding the second opening. The adjacent surfaces of the outer shell and the retaining edge are used to clamp the cavity wall of the storage device. An exhaust pump is at least partially located within the second cavity; The inner wall of the outer shell has at least one first connecting post protruding, and the inner bottom shell has a clearance hole for the first connecting post to pass through. The first connecting post is fixedly connected to the cover plate body via the clearance hole.

2. The exhaust assembly as described in claim 1, characterized in that, The inner wall of the outer casing is provided with a first protrusion protruding toward the cover plate, and the first connecting post is formed on the first protrusion.

3. The exhaust assembly as described in claim 2, characterized in that, The first protrusion is formed by a portion of the outer shell recessed toward the inner shell.

4. The exhaust assembly as described in claim 2, characterized in that, The upper part of the inner bottom shell protrudes toward the cover plate, forming a second protrusion corresponding to the first protrusion.

5. The exhaust assembly as described in claim 4, characterized in that, The exhaust assembly further includes a circuit board disposed in the second cavity and connected to the exhaust pump; at least one second connecting post is formed on the second protrusion, and the second connecting post is fixedly connected to the circuit board; the first protrusions are respectively located on opposite sides of the exhaust pump; each first protrusion is provided with at least two first connecting posts; on each first protrusion, the second connecting post is disposed between the first connecting posts.

6. The exhaust assembly as described in any one of claims 1 to 5, characterized in that, The retaining edge is formed on the cover plate and connected to the periphery of the cover plate body; the cover plate body and the retaining edge are integrally formed, and the retaining edge and the adjacent surfaces of the inner bottom shell are non-detachable.

7. The exhaust assembly as described in any one of claims 1 to 5, characterized in that, The first connecting post has a first threaded hole, the cover plate has a first mounting hole, the threaded section of the threaded component passes through the first mounting hole and is threaded into the first threaded hole, and the head of the threaded component abuts against the side of the cover plate away from the outer shell.

8. The exhaust assembly as described in any one of claims 1 to 5, characterized in that, The baffle is formed on the cover plate and connected to the periphery of the cover plate body; the outer shell has a first annular groove surrounding the first opening on the surface facing the baffle and / or the baffle has a first annular groove on the surface facing the outer shell; the exhaust assembly further includes a first sealing ring, the first sealing ring is disposed in the first annular groove, and the natural height of the first sealing ring is greater than the depth of the first annular groove.

9. The exhaust assembly as described in any one of claims 1 to 5, characterized in that, At least one abutting rib is provided on the inner sidewall of the outer shell, and the abutting rib is used to abut against the outer sidewall of the inner bottom shell.

10. The exhaust assembly as claimed in claim 9, characterized in that, At least one guide rib is provided on the inner wall of the outer casing. The guide rib is located on the side of the abutment rib closer to the cover plate. The height of the guide rib gradually decreases in the direction closer to the cover plate.

11. The exhaust assembly as claimed in any one of claims 1 to 5, characterized in that, The outer shell is provided with a first exhaust port communicating with the first cavity, and the inner bottom shell is provided with a second exhaust port communicating with the second cavity; the exhaust assembly also includes a second sealing ring, which is compressed and disposed between the inner bottom shell and the outer shell, and surrounds the first exhaust port and the second exhaust port.

12. An exhaust assembly, characterized in that, For installation on the cavity wall of a storage device, characterized in that it comprises: The outer shell has a first cavity inside, and a first opening and a first exhaust port that communicate with the first cavity; The inner shell includes an inner bottom shell and a cover plate. The inner bottom shell has a second cavity inside and a second opening and a second exhaust port that communicate with the second cavity. The cover plate includes a cover plate body for being disposed in the second opening and closing the second cavity. The inner bottom shell is at least partially disposed in the first cavity. The first exhaust port and the second exhaust port correspond to and communicate with each other. An exhaust pump, at least partially disposed within the second cavity, wherein the inlet of the exhaust pump is connected to the second exhaust port; and The second sealing ring is compressed and disposed between the inner bottom shell and the outer shell, and surrounds the first exhaust port and the second exhaust port.

13. The exhaust assembly as claimed in claim 12, characterized in that, A second annular groove is formed around the first exhaust port on the inner wall of the outer casing or the outer wall of the inner bottom casing, and the second sealing ring is partially located within the second annular groove.

14. The exhaust assembly as claimed in claim 12, characterized in that, The exhaust pump includes a motor, an impeller, and a one-way valve connected in sequence. The impeller is disposed between the second exhaust port and the motor. The exhaust assembly also includes a third sealing ring, which is compressed between the frame of the impeller and the inner bottom shell and surrounds the second exhaust port. The one-way valve is disposed at the second exhaust port or the first exhaust port.

15. The exhaust assembly as claimed in claim 14, characterized in that, The impeller frame is provided with a third annular groove surrounding the second exhaust port on the side facing the inner bottom shell and / or on the inner wall of the inner bottom shell, and the third sealing ring is partially located in the third annular groove.

16. The exhaust assembly as claimed in claim 12, characterized in that, At least one abutting rib is provided on the inner sidewall of the outer shell opposite to the first exhaust port, and the abutting rib is used to abut against the outer sidewall of the inner bottom shell.

17. A storage device, characterized in that, The device includes a device body and an exhaust assembly as described in any one of claims 1 to 11, the device body including interconnected cavity walls and an airtight bag disposed in the space formed by the cavity walls, the cavity walls having an opening through which the housing passes, and the adjacent surfaces of the housing and the baffle clamping the cavity walls together.

18. A storage device, characterized in that, The device includes a device body and an exhaust assembly as described in any one of claims 12 to 16; the device body includes interconnected cavity walls and an airtight bag disposed within a space formed by the cavity walls, and the exhaust assembly is fixed to the cavity walls.

19. The storage device as claimed in claim 18, characterized in that, The storage device includes a vent cover disposed inside the airtight bag, and at least one vent is provided on the side wall of the vent cover; the sealed cavity of the airtight bag is connected to the first exhaust port through the vent.

20. The storage device as described in claim 18 or 19, characterized in that, The first exhaust port is connected to the sealing cavity of the airtight bag via an exhaust pipe; the cross-sectional areas of the first exhaust port, the second exhaust port, the air inlet of the exhaust pump, and the air outlet of the exhaust pump are all larger than the cross-sectional area of ​​the exhaust pipe.

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