Waterproof shell and power adapter

Abstract

The utility model provides a waterproof shell and a power adapter. The waterproof shell comprises a shell body and a cover body, the shell comprises a bottom plate and a side wall, the side wall is connected to the periphery of the bottom plate so as to define a containing cavity used for containing an electronic element, and the side, back on to the bottom plate, of the side wall is provided with a sealant pouring groove used for containing sealant; the cover body comprises a cover plate arranged on the opening side of the containing cavity in a covering mode and a first sealing flange arranged on the surface, facing the bottom plate, of the cover plate in a protruding mode, and the first sealing flange is inserted into the glue pouring groove and connected with the shell in a buckled mode so that the first sealing flange can abut against the bottom of the glue pouring groove. According to the waterproof shell, due to the fact that the first sealing flange is fixed to the shell in the buckled mode, the first sealing flange can be kept to abut against the bottom of the glue pouring groove, the situation that a gap is generated between the first sealing flange and the bottom of the glue pouring groove is improved, after the sealant is poured into the glue pouring groove, the sealant can be evenly distributed in the glue pouring groove, and the sealing effect is improved. Therefore, the sealing performance of the waterproof housing is effectively improved.

Description

Technical Field

[0001] This application belongs to the field of power supply equipment technology, and more specifically, relates to a waterproof housing and a power adapter. Background Technology

[0002] The function of a power adapter is to convert AC input into DC output. In modern life, it is widely used in small household appliances, water purifiers, air purifiers, security cameras, set-top boxes, routers, light strips, massagers and other devices.

[0003] Traditional power adapter housings typically consist of a housing and a cover, with the cover enclosing the internal space of the housing. In related technologies, the cover has a sealing flange, and the housing has a potting groove for receiving sealant. The sealing flange is inserted into the potting groove. During the sealing connection between the cover and the housing, sealant is usually poured into the potting groove, and the sealing flange is ultrasonically welded to the housing. However, during the ultrasonic welding process, sealant overflows from the potting groove to the outside of the housing. This not only causes uneven distribution of the sealant within the potting groove but also creates gaps at the weld between the sealing flange and the housing, negatively impacting the housing's sealing performance. Utility Model Content

[0004] The purpose of this application is to provide a waterproof housing and power adapter to solve the technical problem of poor sealing performance of the housing of power adapters in related technologies.

[0005] To achieve the above objectives, the technical solution adopted in this application embodiment is as follows: a waterproof housing is provided, including a housing and a cover; the housing includes a bottom plate and a side wall, the side wall is connected to the periphery of the bottom plate to define a cavity for accommodating electronic components, and a potting groove for accommodating sealant is provided on the side of the side wall facing away from the bottom plate; the cover includes a cover plate covering the opening side of the cavity and a first sealing flange protruding from the surface of the cover plate facing the bottom plate, the first sealing flange is inserted into the potting groove and snapped together with the housing so that the first sealing flange abuts against the bottom of the potting groove.

[0006] The waterproof housing provided in this application embodiment has at least the following beneficial effects: By inserting a first sealing flange into the glue-filling groove and snapping the first sealing flange to the housing, the first sealing flange abuts against the bottom of the glue-filling groove. This snap-fit ​​fixes the first sealing flange to the housing, maintaining contact with the bottom of the glue-filling groove and reducing gaps between them. Furthermore, after sealant is poured into the glue-filling groove, the sealant is evenly distributed within it, effectively improving the sealing performance of the waterproof housing. Immersion tests have shown that power adapters using the above-mentioned waterproof housing can achieve an IP68 waterproof rating, demonstrating a significant improvement in sealing performance.

[0007] In some embodiments of this application, the sidewall includes a main wall, a first baffle and a second baffle. The main wall is connected to the periphery of the base plate, and the first baffle and the second baffle are both connected to the side of the main wall facing away from the base plate. The first baffle and the second baffle are separated along the thickness direction of the main wall to form a glue-filling groove.

[0008] In some embodiments of this application, a first baffle is disposed on the side of the second baffle facing the cavity and has a latch, and a first sealing flange is disposed on the side facing the first baffle with a latching part, which is engaged with the latch.

[0009] In some embodiments of this application, a first sealing groove is recessed on the surface of the cover plate facing the bottom plate, and a first baffle is inserted into the first sealing groove.

[0010] In some embodiments of this application, the first baffle is disposed on the side of the second baffle facing the cavity and the second baffle is disposed on the outer periphery of the cover plate, so that the cover plate is embedded in the cavity opening.

[0011] In some embodiments of this application, the surface of the cover plate facing away from the bottom plate is flush with the side of the second baffle facing away from the main wall.

[0012] In some embodiments of this application, a wire passage is provided in the side wall, the wire passage extends through the opposite sides of the side wall along the thickness direction, and the waterproof housing also includes a wire sheath disposed in the wire passage, the wire sheath having a potting cavity, the potting cavity being connected to a potting groove.

[0013] In some embodiments of this application, the cable sleeve includes a sleeve body and a second sealing flange protruding from the outer periphery of the sleeve body, and a second sealing groove is recessed in the inner wall of the cable passage, and the second sealing flange is inserted into the second sealing groove.

[0014] In some embodiments of this application, the cable sheath includes a sheath body and a third sealing flange protruding from the outer periphery of the sheath body. A third sealing groove is recessed on the surface of the cover plate facing the bottom plate, and the third sealing flange is inserted into the third sealing groove.

[0015] This application also provides a power adapter, including the waterproof housing described in any of the above embodiments.

[0016] The power adapter provided in this application has at least the following beneficial effects: The power adapter provided in this application adopts the waterproof shell described in any of the above embodiments, which effectively improves the waterproof performance of the power adapter and can meet the requirements of the power adapter working in liquid. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art 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.

[0018] Figure 1 This is a schematic diagram of the power adapter provided in an embodiment of this application.

[0019] Figure 2 This is another perspective structural diagram of the power adapter provided in the embodiments of this application;

[0020] Figure 3 for Figure 2 The diagram shows the exploded structure of the power adapter.

[0021] Figure 4 for Figure 2 The diagram shows the front view of the power adapter.

[0022] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure along line AA;

[0023] Figure 6 for Figure 5 The diagram shows an enlarged view of the power adapter at point B.

[0024] The following are the labeling elements in the figure:

[0025] 100. Power adapter;

[0026] 10. Waterproof outer shell; 11. Shell; 111. Base plate; 112. Side wall; 1121. Glue filling tank; 1122. Main wall; 1123. First baffle; 11231. Bayonet; 1124. Second baffle; 1125. Cable passage; 11251. Second sealing groove; 113. Cavity; 12. Cover; 121. Cover plate; 1211. First sealing groove; 122. First sealing flange; 1221. Buckle; 13. Cable sheath; 131. Sheath body; 132. Second sealing flange; 133. Third sealing flange; 134. Glue filling cavity;

[0027] 20. Wire. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by 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 and are not intended to limit the scope of this application.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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 application.

[0031] Furthermore, 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 indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] The waterproof housing and power adapter provided in the embodiments of this application are described below with reference to the accompanying drawings.

[0033] Firstly, please refer to the following: Figures 1 to 6This application provides a waterproof housing 10, including a housing 11 and a cover 12. The housing 11 includes a base plate 111 and a side wall 112. The side wall 112 is connected to the periphery of the base plate 111 to define a cavity 113 for accommodating electronic components. The side wall 112 facing away from the base plate 111 has an adhesive filling groove 1121 for accommodating sealant. The cover 12 includes a cover plate 121 covering the opening side of the cavity 113 and a first sealing flange 122 protruding from the surface of the cover plate 121 facing the base plate 111. The first sealing flange 122 is inserted into the adhesive filling groove 1121 and snapped into the housing 11 so that the first sealing flange 122 abuts against the bottom of the adhesive filling groove 1121.

[0034] The housing 11 is a component for providing the internal environment of the waterproof housing 10, at least a portion of which forms the cavity 113 described above. The cavity 113 is used to accommodate electronic components, including but not limited to circuit boards, resistors, capacitors, etc. A sidewall 112 is connected to and extends along the periphery of the base plate 111, and the sidewall 112 and the base plate 111 together enclose the cavity 113. The sidewall 112 facing away from the base plate 111 is recessed towards the base plate 111 to form the potting groove 1121. In some embodiments, the potting groove 1121 is generally annular and surrounds the cavity 113. The potting groove 1121 can be a closed loop or an open loop with a notch.

[0035] The cover 12 is a component used to isolate the cavity 113 and the waterproof housing 10 from the external environment. The cover plate 121 is the main part of the cover 12. The first sealing flange 122 is a portion that protrudes from the side of the cover plate 121 facing the base plate 111 towards the base plate 111. In some embodiments, the first sealing flange 122 and the potting groove 1121 have an annular structure. When the potting groove 1121 is filled with sealant and the first sealing flange 122 is inserted into the potting groove 1121, after the sealant solidifies, the cover 12 can be bonded to the housing 11, forming a sealing barrier annularly disposed in the cavity 113 between the cover plate 121 and the side wall 112, thereby isolating the cavity 113 from the external environment of the waterproof housing 10.

[0036] The first sealing flange 122 abuts against the bottom of the glue-filling groove 1121 on the side facing away from the cover plate 121. A snap-fit ​​structure is provided between the first sealing flange 122 and the housing 11. The snap-fit ​​structure is used to limit the relative position of the first sealing flange 122 and the housing 11 along the depth direction of the glue-filling groove 1121, so as to keep the first sealing flange 122 abutting against the bottom of the glue-filling groove 1121.

[0037] In some embodiments, the first sealing flange 122 is parallel to and fitted to the bottom of the glue-filling groove 1121 to improve the situation where gaps appear between the first sealing flange 122 and the bottom of the glue-filling groove 1121, thereby further improving the sealing performance of the waterproof housing 10.

[0038] The shape of the cover 12 can be adapted to the shape of the sidewall 112 to fit the sidewall 112. In some embodiments, both the cover 12 and the housing 11 are made of insulating material, which can be, but is not limited to, plastic, glass, ceramic, etc.

[0039] The waterproof housing 10 provided in this embodiment inserts a first sealing flange 122 into a potting groove 1121 and snaps the first sealing flange 122 to the housing 11, so that the first sealing flange 122 abuts against the bottom of the potting groove 1121. Because the first sealing flange 122 is snapped and fixed to the housing 11, it maintains contact with the bottom of the potting groove 1121, thus improving the situation where gaps occur between the first sealing flange 122 and the bottom of the potting groove 1121. Furthermore, after sealant is poured into the potting groove 1121, the sealant can be evenly distributed within the potting groove 1121, thereby effectively improving the sealing performance of the waterproof housing 10. Immersion tests have shown that the power adapter 100 using the above-described waterproof housing 10 can achieve an IP68 waterproof rating, demonstrating a significant improvement in sealing performance.

[0040] In some embodiments of this application, please refer to Figure 6 The side wall 112 includes a main wall 1122, a first baffle 1123 and a second baffle 1124. The main wall 1122 is connected to the periphery of the base plate 111. The first baffle 1123 and the second baffle 1124 are both connected to the side of the main wall 1122 facing away from the base plate 111. The first baffle 1123 and the second baffle 1124 are separated along the thickness direction of the main wall 1122 to form a glue-filling groove 1121.

[0041] The main wall 1122 is the main part of the side wall 112, and is connected to the periphery of the base plate 111. The first baffle 1123 and the second baffle 1124 are both connected to the side of the main wall 1122 facing away from the base plate 111. The first baffle 1123 may be located on the side of the second baffle 1124 facing the cavity 113, or the second baffle 1124 may be located on the side of the first baffle 1123 facing the cavity 113.

[0042] In some embodiments, the main wall 1122, the first baffle 1123, and the second baffle 1124 are all annular structures. The first baffle 1123 and the second baffle 1124 are both connected to the side of the main wall 1122 facing away from the bottom plate 111. The first baffle 1123 is disposed on the inner ring side of the second baffle 1124 and is separated from the second baffle 1124 along the thickness direction of the main wall 1122 to form a glue-filling groove 1121.

[0043] In other embodiments, the main wall 1122, the first baffle 1123, and the second baffle 1124 are all in annular structure. The first baffle 1123 and the second baffle 1124 are both connected to the side of the main wall 1122 facing away from the bottom plate 111. The second baffle 1124 is disposed on the inner ring side of the first baffle 1123 and is separated from the first baffle 1123 along the thickness direction of the main wall 1122 to form a glue-filling groove 1121.

[0044] By adopting the above technical solution, the structure of the side wall 112 is effectively simplified, making it easier to form the glue-filling groove 1121 on the side wall 112.

[0045] In some embodiments of this application, please refer to Figure 6 The first baffle 1123 is disposed on the side of the second baffle 1124 facing the cavity 113 and has a slot 11231. The first sealing flange 122 is provided with a buckle part 1221 on the side facing the first baffle 1123, and the buckle part 1221 is engaged with the slot 11231.

[0046] In some embodiments, the number of latching parts 1221 can be multiple, and the multiple latching parts 1221 are arranged at intervals along the circumference of the cover 12. Correspondingly, the number of latches 11231 is multiple, and the multiple latching parts 1221 and the multiple latches 11231 are provided in a one-to-one correspondence.

[0047] By adopting the above technical solution, since the first baffle 1123 is located on the side of the second baffle 1124 facing the cavity 113 and has a slot 11231, the glue filling groove 1121 can be prevented from communicating with the external environment of the waterproof shell 10 through the slot 11231, thereby further improving the sealing performance of the waterproof shell 10.

[0048] Of course, in other embodiments, a slot 11231 may be provided on the first sealing flange 122, and a buckle portion 1221 may be provided on the first baffle 1123 or the second baffle 1124. The buckle portion 1221 is engaged with the slot 11231 to achieve a snap connection between the first sealing flange 122 and the housing 11.

[0049] In some embodiments of this application, please refer to Figure 6The surface of the cover plate 121 facing the bottom plate 111 is recessed with a first sealing groove 1211, and the first baffle 1123 is inserted into the first sealing groove 1211.

[0050] In some embodiments, the first baffle 1123 is disposed on the side of the second baffle 1124 facing the cavity 113, the first sealing groove 1211 is disposed on the side of the first sealing flange 122 facing the cavity 113, and the first baffle 1123 is inserted into the first sealing groove 1211.

[0051] In other embodiments, the first baffle 1123 is disposed on the side of the second baffle 1124 facing away from the cavity 113, the first sealing groove 1211 is disposed on the side of the first sealing flange 122 facing away from the cavity 113, and the first baffle 1123 is inserted into the first sealing groove 1211.

[0052] By adopting the above technical solution, the first baffle 1123 and the first sealing groove 1211 cooperate to form a sealing barrier, thereby further improving the sealing performance of the waterproof shell 10.

[0053] In some embodiments of this application, please refer to Figure 5 and Figure 6 The first baffle 1123 is disposed on the side of the second baffle 1124 facing the cavity 113, and the second baffle 1124 is disposed on the outer periphery of the cover plate 121, so that the cover plate 121 is embedded in the cavity 113.

[0054] In some embodiments, the first baffle 1123 and the second baffle 1124 are both annular structures, with the first baffle 1123 disposed on the inner ring side of the second baffle 1124 and the second baffle 1124 surrounding the cover plate 121.

[0055] By adopting the above technical solution, the gap between the cover plate 121 and the second baffle 1124 can be made more uniform, which makes it easier for the sealant to seal the gap between the cover plate 121 and the second baffle 1124, thereby further improving the sealing performance of the waterproof shell 10.

[0056] In some embodiments of this application, please refer to Figure 5 The surface of the cover plate 121 facing away from the bottom plate 111 is flush with the side of the second baffle 1124 facing away from the main wall 1122.

[0057] By adopting the above technical solution, the structure of the waterproof housing 10 can be made more compact, effectively reducing the volume of the waterproof housing 10, while also improving the overall appearance of the waterproof housing 10.

[0058] In some embodiments of this application, please refer to Figure 3The side wall 112 has a wire passage 1125, which passes through the opposite sides of the side wall 112 along the thickness direction. The waterproof housing 10 also includes a wire sheath 13 disposed in the wire passage 1125. The wire sheath 13 has a glue potting cavity 134, which is connected to the glue potting groove 1121.

[0059] The cable sheath 13 is a component that is fitted onto the conductor 20 to protect it. The cable sheath 13 can be made of a flexible material, including but not limited to rubber and silicone. The cable sheath 13 is disposed within the cable passage 1125 to seal the cable passage 1125, thereby isolating the cavity 113 from the external environment of the waterproof housing 10. The cable sheath 13 has a potting cavity 134, which can be part of the internal space of the cable passage 1125. In some embodiments, one port of the potting groove 1121 extends to one side of the potting cavity 134 and communicates with the potting cavity 134, and the other port of the potting groove 1121 extends to the other side of the potting cavity 134 and communicates with the potting cavity 134.

[0060] The cable passage 1125 is used to allow the wire 20 to extend into the interior of the housing 11 or extend out of the housing 11. In other words, the cable passage 1125 can be either an inlet or an outlet. In some embodiments, there are two cable passages 1125, one as an inlet and the other as an outlet. There are two wires 20, one as an input wire and the other as an output wire. The inlet allows one wire 20 to extend into the interior of the housing 11, and the outlet allows the other wire 20 to extend out of the housing 11. In some embodiments, one port of the potting pot 1121 extends to one side of the cable passage 1125 and communicates with it, and the other port of the potting pot 1121 extends to the other side of the cable passage 1125 and communicates with it.

[0061] By adopting the above technical solution, the sealant can pass through the sheath 13 to form an annular sealing barrier, effectively isolating the cavity 113 from the external environment of the waterproof housing 10, thereby further improving the sealing performance of the waterproof housing 10.

[0062] In some embodiments of this application, please refer to Figure 3 The cable sleeve 13 includes a sleeve body 131 and a second sealing flange 132 protruding from the outer periphery of the sleeve body 131. The inner wall of the cable passage 1125 is recessed with a second sealing groove 11251, and the second sealing flange 132 is inserted into the second sealing groove 11251.

[0063] The sleeve 131 is the main part of the protective sleeve 13, which is used to cover the conductor 20 to protect the conductor 20. The second sealing flange 132 protrudes from the sleeve 131 and is inserted into the second sealing groove 11251 to cooperate with the second sealing groove 11251 to form a sealing barrier.

[0064] In some embodiments, the cable sleeve 13 includes a plurality of second sealing flanges 132, which are spaced apart along the thickness direction of the sidewall 112. The inner wall of the cable passage 1125 is recessed with a plurality of second sealing grooves 11251, which are spaced apart along the thickness direction of the sidewall 112. The plurality of second sealing flanges 132 are inserted into the plurality of second sealing grooves 11251 in a one-to-one correspondence.

[0065] By adopting the above technical solution, the second sealing flange 132 and the second sealing groove 11251 cooperate to form a sealing barrier, thereby further improving the sealing performance of the waterproof shell 10.

[0066] In some embodiments of this application, please refer to Figure 3 The cable sleeve 13 also includes a third sealing flange 133 protruding from the outer periphery of the sleeve body 131. The surface of the cover plate 121 facing the bottom plate 111 is recessed with a third sealing groove, and the third sealing flange 133 is inserted into the third sealing groove.

[0067] In some embodiments, the cable sleeve 13 includes a plurality of third sealing flanges 133, which are spaced apart along the thickness direction of the sidewall 112. The surface of the cover plate 121 facing the bottom plate 111 is recessed with a plurality of third sealing grooves, which are spaced apart along the thickness direction of the sidewall 112. The plurality of third sealing flanges 133 are inserted into the plurality of third sealing grooves one by one.

[0068] In some embodiments, the surface of the cover plate 121 facing the bottom plate 111 is recessed with a first sealing groove 1211, the first baffle 1123 is inserted into the first sealing groove 1211, and the two ends of the third sealing groove are uniformly connected to the first sealing groove 1211 so that the first sealing groove 1211 and the third sealing groove cooperate to form an annular sealing groove.

[0069] By adopting the above technical solution, the third sealing flange 133 and the third sealing groove cooperate to form a sealing barrier, thereby further improving the sealing performance of the waterproof shell 10.

[0070] Secondly, please refer to Figures 1 to 6 This application provides a power adapter 100, which includes the waterproof housing 10 described in any of the above embodiments.

[0071] In some embodiments, the power adapter 100 further includes electronic components (not shown) and wires 20, the electronic components being housed within the waterproof housing 10, and a cable sheath 13 being fitted over the wires 20, the wires 20 being electrically connected to the electronic components.

[0072] Immersion tests revealed that the aforementioned power adapter 100 achieves an IP68 waterproof rating, demonstrating a significant improvement in sealing performance.

[0073] The power adapter 100 provided in this application adopts the waterproof shell 10 described in any of the above embodiments, which effectively improves the waterproof performance of the power adapter 100 and can meet the requirements of the power adapter 100 working in liquid.

[0074] 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. A waterproof outer casing, characterized in that: The waterproof housing includes: The housing includes a base plate and a side wall, the side wall being connected to the periphery of the base plate to define a cavity for accommodating electronic components, and the side wall having an adhesive groove for accommodating sealant on the side opposite to the base plate. The cover includes a cover plate covering the opening side of the cavity and a first sealing flange protruding from the surface of the cover plate facing the bottom plate. The first sealing flange is inserted into the glue-filling groove and snapped into the housing so that the first sealing flange abuts against the bottom of the glue-filling groove.

2. The waterproof outer casing as described in claim 1, characterized in that: The sidewall includes a main wall, a first baffle, and a second baffle. The main wall is connected to the periphery of the base plate. The first baffle and the second baffle are both connected to the side of the main wall facing away from the base plate. The first baffle and the second baffle are separated along the thickness direction of the main wall to form the glue-filling groove.

3. The waterproof outer casing as described in claim 2, characterized in that: The first baffle is disposed on the side of the second baffle facing the cavity and has a snap-fit ​​opening. The first sealing flange is provided with a snap-fit ​​part on the side facing the first baffle, and the snap-fit ​​part is engaged with the snap-fit ​​opening.

4. The waterproof outer casing as described in claim 2, characterized in that: The surface of the cover plate facing the base plate is recessed with a first sealing groove, and the first baffle is inserted into the first sealing groove.

5. The waterproof outer casing as described in claim 2, characterized in that: The first baffle is disposed on the side of the second baffle facing the cavity, and the second baffle is disposed on the outer periphery of the cover plate, so that the cover plate is embedded in the cavity opening.

6. The waterproof outer casing as described in claim 5, characterized in that: The surface of the cover plate facing away from the bottom plate is flush with the side of the second baffle facing away from the main wall.

7. The waterproof outer casing as described in any one of claims 1-6, characterized in that: The side wall has a wire passage opening that extends through both sides of the side wall along its thickness direction. The waterproof housing also includes a wire protection sleeve disposed within the wire passage opening. The wire protection sleeve has a glue-filling cavity that is connected to the glue-filling groove.

8. The waterproof outer casing as described in claim 7, characterized in that: The cable sleeve includes a sleeve body and a second sealing flange protruding from the outer periphery of the sleeve body. The inner wall of the cable passage is recessed with a second sealing groove, and the second sealing flange is inserted into the second sealing groove.

9. The waterproof outer casing as described in claim 7, characterized in that: The cable sleeve includes a sleeve body and a third sealing flange protruding from the outer periphery of the sleeve body. The surface of the cover plate facing the base plate is recessed with a third sealing groove, and the third sealing flange is inserted into the third sealing groove.

10. A power adapter, characterized in that: The power adapter includes a waterproof housing as described in any one of claims 1-9.

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