Waterproof sealing assembly and plugging device

Abstract

The utility model discloses a waterproof sealing assembly and a plugging device, and belongs to the technical field of connector sealing. The waterproof sealing assembly provided by the utility model comprises a protection member, the protection member comprises a bottom surface and a plugging part which surrounds the periphery of the bottom surface, and one end of the plugging part is in sealing connection with the bottom surface; a protection cavity is formed in the plugging part, a plurality of partition plates are arranged in the protection cavity at intervals, and the protection cavity is divided into a plurality of plugging cavities by the partition plates. According to the scheme, the waterproof sealing assembly is used for being connected with the combination hub in a matched mode, the plug is connected with the plugging cavity in a matched mode, the charging interface is located in the protection cavity, and therefore external sealing protection is conducted on the charging interface, and internal electrical connection and electronic elements are protected against damage.

Description

Technical Field

[0001] The utility model relates to the technical field of connector sealing, and more specifically, to a waterproof sealing component and a plugging device. Background Art

[0002] The inside of a charging plug for a new energy vehicle is connected to a battery, and the socket of the charging plug faces the outside of the vehicle for connection to an external power source to charge the battery. To improve battery safety, the charging plug usually undergoes multiple layers of waterproof protection. In addition to the sealed connection between internal electrical components, the outside of the socket also needs to be sealed.

[0003] Especially the external protection of the socket can ensure that the socket still maintains a good protection effect under harsh weather conditions (such as rain and snow) and different environments (such as outdoor parking lots and during sea transportation), to prevent moisture or debris from entering the socket, thereby avoiding corrosion of electronic components and connectors, preventing hazards such as short circuits and tip discharges in the circuit, and ensuring battery safety and performance. Summary of the Utility Model

[0004] The utility model provides a waterproof sealing component and a plugging device for externally sealing and protecting the plugged charging interface, thereby protecting the internal electrical connection and electronic components from damage.

[0005] To achieve the above object, the technical solution provided by the utility model is as follows:

[0006] A waterproof sealing component includes a protective member, the protective member includes a bottom surface and a plugging portion that surrounds the periphery of the bottom surface and is hermetically connected to one end of the bottom surface; a protective cavity is formed inside the plugging portion, and a plurality of partition plates are arranged at intervals in the protective cavity, and the partition plates divide the protective cavity into a plurality of plugging cavities.

[0007] The waterproof sealing component in this solution is used to cooperate with a socket for connection, and a plug cooperates with the plugging cavity, so that the charging interface is located in the protective cavity, thereby externally sealing and protecting the charging interface to protect the internal electrical connection and electronic components from damage.

[0008] Further, a plurality of first locking protrusions protrude from the inner side wall of each plugging cavity, and the first locking protrusions are arranged circumferentially along the inner side wall of the plugging cavity. When the plug cooperates with the plugging cavity, there is an interference amount between the first locking protrusion and the plug, so that the plugging cavity generates a radial thrust on the plug through the first locking protrusion. On the one hand, the position of the plug is centered, and on the other hand, the plug is stably and firmly connected with the plugging cavity together.

[0009] Preferably, the number of the partition plates is odd, and the other partition plates are symmetrically arranged relative to the middle partition plate; a misalignment prevention step is recessed on one end of the middle partition plate, and the misalignment prevention step can effectively prevent the protective part from being installed reversely and improve the installation efficiency of the protective part.

[0010] In an embodiment, the protective part further includes a sealing portion, and the sealing portion is hermetically connected to the other end of the plug-in portion.

[0011] Further, a first sealing member and a second sealing member are circumferentially arranged on the outer side of the sealing portion, and the first sealing member is arranged closer to the plug-in portion than the second sealing member. Moreover, the first sealing member is an O-ring; the second sealing member is a protruding lip-shaped sealing ring and is integrally formed with the sealing portion. By arranging the first sealing member and the second sealing member, the assembly area between the outer side of the sealing portion and the socket can be reduced, and at the same time, the sealing effect between the two can be ensured. When the plug is in fit connection with the plug-in cavity, there will be a pressure difference inside and outside the protective cavity. The O-ring can balance the pressure difference through deformation, and the lip-shaped sealing ring can effectively adjust the internal and external pressure differences, and can also improve the structural strength of the sealing portion to avoid causing destructive effects.

[0012] Further, an adjacent mating surface and a guiding surface are arranged on the inner side of the sealing portion; the mating surface is arranged close to the plug-in portion, and a plurality of second locking protrusions are circumferentially arranged thereon at intervals; the guiding surface is inclined and the opening gradually increases towards the outside of the sealing portion; the protruding heights of the first locking protrusion and the second locking protrusion are 0.15 - 0.5 mm. When the sealing portion is in fit with the socket, there is an interference amount between the second locking protrusion and the socket, and the sealing portion generates a radial thrust on the socket through the second locking protrusion, so that the position of the socket 2 is centered. In cooperation with the first locking protrusion, radial thrusts are generated on the socket at different positions of the protective part, improving the centering fit effect of the socket and the waterproof sealing assembly. Moreover, a first sealing member and a second sealing member are circumferentially arranged on the outer side of the sealing portion, and the second locking protrusion also avoids uneven gaps in the circumferential part of the inner side of the sealing portion, thereby preventing the situation that the first sealing member or the second sealing member is deformed unevenly or even fails.

[0013] As a preferred embodiment, a skirt is circumferentially protruded on the outer side of the connection between the plug-in portion and the sealing portion, and a gap is formed between the skirt and the sealing portion. The outer shell on the socket is located at the gap formed between the skirt and the sealing portion, so that the charging interface inside the outer shell is protected inside the protection, thereby externally sealing and protecting the charging interface.

[0014] Further, a number of rib grooves are recessed on one side of the skirt close to the gap, and the rib grooves are arranged at intervals; lugs are respectively connected to both sides of the skirt, and the lugs extend towards the direction close to the insertion part and then turn towards the direction close to the sealing part. The rib grooves are used for cooperating and connecting with the positioning ribs to position the waterproof sealing component. The lugs are used for connecting with the lug seats, indicating from the outside that the waterproof sealing component is assembled in place and also preventing the waterproof sealing component from falling off.

[0015] The present utility model further provides a plug-in device, which includes a plug socket and the waterproof sealing component that are cooperatively connected; the plug socket includes a base and a housing connected to the base, and a plug is arranged inside the housing; when the plug socket is connected to the waterproof sealing component, the plug is cooperatively connected with the insertion cavity.

[0016] In the plug-in device of this solution, the charging interface of the plug socket is sealed and protected by the waterproof sealing component to protect the internal electrical connections and electronic components from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the connection state between the waterproof sealing component and the plug socket;

[0018] Figure 2 It is a schematic diagram of the separated state between the waterproof sealing component and the plug socket;

[0019] Figure 3 It is the front view of the waterproof sealing component;

[0020] Figure 4 It is the three-dimensional view of the waterproof sealing component Figure 1 ;

[0021] Figure 5 It is the three-dimensional view of the waterproof sealing component Figure 2 ;

[0022] Figure 6 It is the three-dimensional view of the waterproof sealing component Figure 3 。

[0023] Label Description:

[0024] 1. Protective part; 11. Insertion part; 111. Partition board; 112. Insertion cavity; 113. First locking protrusion; 114. Anti-misalignment step; 12. Skirt; 121. Rib groove; 13. Sealing part; 131. First sealing member; 132. Second sealing member; 133. Fitting surface; 134. Guide surface; 135. Second locking protrusion; 14. Lug;

[0025] 2. Plug socket; 20. Housing; 21. Plug; 22. Lug seat; 23. Positioning rib;

[0026] 3. Fixed surface. Detailed implementation mode

[0027] To further understand the content of the present utility model, the present utility model will be described in detail in combination with the accompanying drawings and embodiments.

[0028] The structures, ratios, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have technical substance significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model.

[0029] At the same time, terms such as "upper", "lower", "left", "right", "inner", "outer", "middle", etc. cited in this specification are only for the convenience of clear narration and are not used to limit the scope that can be implemented. The change or adjustment of their relative relationships, without substantial change in technical content, should also be regarded as the scope that the present invention can be implemented. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent the orientation or position relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific circumstances.

[0030] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned attached drawings of the present application are used to distinguish similar objects and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances for the embodiments of the present application described here.

[0031] Embodiment 1

[0032] As Figure 1 and Figure 2 shown, a waterproof sealing component provided in this embodiment is cooperatively connected with the charging interface of the socket and is used for waterproof sealing protection of the charging interface.

[0033] Specifically, a waterproof sealing component includes a protective part 1. The protective part 1 includes a bottom surface and a plug-in part 11 that surrounds the periphery of the bottom surface and is hermetically connected to the bottom surface at one end. A protective cavity is formed inside the plug-in part 11. Three partition plates 111 are arranged at intervals in the protective cavity, and the partition plates 111 divide the protective cavity into four plug-in cavities 112. In this embodiment, the number of partition plates 111 is an odd number, and the other partition plates 111 are symmetrically arranged relative to the middle partition plate 111.

[0034] In other cases, the number of partition plates 111 can also be set to other numbers according to actual application needs.

[0035] The socket 2 that the waterproof sealing component is cooperatively connected to includes a base and a housing 20 connected to the base. The housing 20 forms a charging interface, and a plug 21 is arranged inside the housing 20. After the waterproof sealing component is cooperatively connected to the socket 2, the plug 21 is cooperatively connected to the plug-in cavity 112, so that the charging interface is located inside the protective cavity, thereby externally sealing and protecting the charging interface to protect the internal electrical connections and electronic components from damage.

[0036] Combined Figure 5 and Figure 6 As shown, an anti-misalignment step 114 is recessed at one end of the middle partition plate 111, which can effectively prevent the protective part 1 from being installed reversely and improve the installation efficiency of the protective part 1. The anti-misalignment step 114 is recessed on the outer side of the protective part 1 to form an anti-misalignment step 114 inside the partition plate 111, and the installation orientation of the protective part 1 can be visually observed from the outside. By arranging the anti-misalignment step 114 on the partition plate 111, the anti-misalignment step 114 can also be in contact connection with other components on the socket 2 at the same time, reducing the void inside the protective cavity and improving the installation effect of the protective part 1.

[0037] The other partition plates 111 are symmetrically arranged relative to the middle partition plate 111, so that when the waterproof sealing component is connected to the socket 2, the two are centered and cooperated with each other. In addition, a number of first locking protrusions 113 protrude from the inner side wall of each plug-in cavity 112, and the first locking protrusions 113 are arranged circumferentially along the inner side wall of the plug-in cavity 112. The setting positions and the number of the first locking protrusions 113 on the inner side walls of the opposite plug-in cavities 112 correspond to each other.

[0038] In a preferred embodiment, the first locking protrusion 113 is in the shape of a protruding round package, and the protruding height of the first locking protrusion 113 is 0.3 mm. When the plug 21 is cooperatively connected to the plug-in cavity 112, there is an interference amount of 0.3 mm between the first locking protrusion 113 and the plug 21, so that the plug-in cavity 112 generates a radial thrust on the plug 21 through the first locking protrusion 113. On the one hand, the position of the plug 21 is centered, and on the other hand, the plug 21 is stably and firmly cooperatively connected to the plug-in cavity 112.

[0039] Preferably, the waterproof sealing assembly is a soft rubber sealing structure made of elastic materials such as rubber materials. The first locking protrusion 113 is provided to enable the waterproof sealing assembly to be centered and cooperated with the socket, and at the same time, while firmly connecting the plug 21 and the socket cavity 112, the sides are closely cooperated, so as to achieve a good sealing effect.

[0040] Combined Figure 3 , Figure 4 and Figure 5 As shown, the protective member 1 further includes a sealing portion 13, and the sealing portion 13 is sealingly connected to the other end of the socket portion 11. The first seal 131 and the second seal 132 are circumferentially arranged on the outer side of the sealing portion 13, and the first seal 131 is arranged closer to the socket portion 11 than the second seal 132.

[0041] Preferably, the first seal 131 is an O-ring; the second seal 132 is a protruding lip seal and is integrally formed with the sealing portion 13. When the waterproof sealing assembly is connected to the socket, if no seal is provided, when the outer side of the entire sealing portion 13 is connected and cooperated with the socket 2, the friction is large and the assembly difficulty is large. By providing the first seal 131 and the second seal 132, the assembly area between the outer side of the sealing portion 13 and the socket 2 can be reduced, and at the same time, the sealing effect between the two can be ensured. When the plug 21 is connected and cooperated with the socket cavity 112, there will be a pressure difference inside and outside the protective cavity. The O-ring can balance the pressure difference through deformation, and the lip seal can effectively adjust the internal and external pressure differences, and can also improve the structural strength of the sealing portion 13 to avoid bringing destructive effects.

[0042] In addition, it should be noted that the number of lip seals can be set to multiple, which can improve the sealing effect.

[0043] As a further improvement, the inner side of the sealing portion 13 is provided with adjacent mating surfaces 133 and guiding surfaces 134; the mating surface 133 is arranged close to the socket portion 11, and a plurality of second locking protrusions 135 are circumferentially arranged at intervals thereon; the guiding surface 134 is inclined and the opening gradually increases towards the outside of the sealing portion 13; the protruding height of the second locking protrusion 135 is 0.3 mm. The positions and the numbers of the second locking protrusions 135 arranged on the opposite sides of the mating surface 133 need to correspond to each other. When the sealing portion 13 is cooperated with the socket 2, there is an interference amount of 0.3 mm between the second locking protrusion 135 and the socket 2, and the sealing portion 13 generates a radial thrust on the socket 2 through the second locking protrusion 135 to center the position of the socket 2. The first locking protrusion 113 and the second locking protrusion 135 are respectively arranged at different positions of the protective member 1, so that different positions of the protective member 1 generate radial thrusts on the socket 2, improving the centering cooperation effect of the socket 2 and the waterproof sealing assembly, and finally improving the protection effect of the waterproof sealing assembly.

[0044] It should be noted that in other cases, the protruding heights of the first locking protrusion 113 and the second locking protrusion 135 can also be set to 0.15 mm, 0.5 mm, etc. The protruding heights of the first locking protrusion 113 and the second locking protrusion 135 can be equal or unequal, but the height range of the first locking protrusion 113 and the second locking protrusion 135 is 0.15 - 0.5 mm. On the one hand, it can generate a radial thrust on the docking socket 2, and on the other hand, it can also enable the protective member 1 and the socket 2 to be cooperatively connected.

[0045] Preferably, a skirt 12 is circumferentially and prominently provided on the outer side of the connection between the insertion part 11 and the sealing part 13, and a gap is formed between the skirt 12 and the sealing part 13. A number of rib grooves 121 are recessed on the side of the skirt 12 close to the gap, and the rib grooves 121 are arranged at intervals; hanging ears 14 are respectively connected to both sides of the skirt 12, and the hanging ears 14 extend towards the direction close to the insertion part 11 and then turn towards the direction close to the sealing part 13.

[0046] The skirt 12 is provided to enhance the protection of the charging interface in cooperation with the protection cavity, prevent damage caused by mechanical impact, and at the same time, a reinforcing rib connecting the skirt 12 to the insertion part 11 is circumferentially provided to increase the structural strength of the protective member 1.

[0047] Specifically, the number and positions of the rib grooves 121 provided on the opposite side edges of the skirt 12 correspond to each other, and the rib grooves 121 are cooperatively connected with the positioning ribs 23 on the socket 2 for positioning the protective member 1. Hanging ears 14 are connected to both sides of the skirt 12, and the hanging ears 14 are cooperatively connected with the structure on the socket 2 to indicate from the outside that the waterproof sealing assembly is assembled in place, and the cooperative connection between the hanging ears 14 and the structure on the socket 2 can also prevent the waterproof sealing assembly from falling off. At the same time, the height of the hanging ears 14 is set above 10 mm. Combining the structure of the hanging ears 14 makes the hanging ears 14 more easily deformable and more easily cooperatively connected with the structure on the socket 2.

[0048] The protective member 1 in this embodiment is integrally formed, for example, it can be made by die casting. Integrally forming the protective member 1 can make the connection between the various components in the waterproof sealing assembly more firm and also make the appearance of the waterproof sealing assembly better.

[0049] Embodiment 2

[0050] Combined with Figure 1 and Figure 2 As shown, this embodiment provides a plug-in device, including a cooperatively connected socket 2 and the waterproof sealing assembly in Embodiment 1. The socket 2 includes a base and a housing 20 connected to the base, and a plug 21 is arranged in the housing 20; when the socket 2 is connected to the waterproof sealing assembly, the plug 21 is cooperatively connected with the insertion cavity 112.

[0051] Specifically, a positioning rib 23 that is cooperatively connected with the rib groove 121 and an ear seat 22 that is cooperatively connected with the ear 14 are further provided on the outer side of the housing 20.

[0052] Preferably, when the socket 2 is connected to the waterproof sealing assembly, the plug 21 is cooperatively connected with the socket cavity 112. At the same time, the housing 20 is located at the gap formed between the skirt 12 and the sealing portion 13, so that the charging interface inside the housing 20 is protected by the protection member 1, thereby externally sealing and protecting the charging interface to protect the internal electrical connections and electronic components from damage.

[0053] Generally, the base of the socket 2 is fixed on the fixing surface 3, and the socket 2 is cooperatively connected with the waterproof sealing assembly. After the connection, the plug 21 is connected to the socket cavity 112, the positioning rib 23 is cooperatively connected with the rib groove 121, the ear 14 is hung on the ear seat 22, and the connection between the socket 2 and the waterproof sealing assembly is completed, realizing the sealing protection of the waterproof sealing assembly for the socket 2.

[0054] The terms "installation", "setting", "providing", and "connection" referred to herein should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] The above schematically describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the creative purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A waterproof sealing component, characterized in that: It includes a protective part (1), and the protective part (1) includes a bottom surface and a plug-in part (11) that surrounds the periphery of the bottom surface and is hermetically connected to one end of the bottom surface; a protective cavity is formed inside the plug-in part (11), and a plurality of partition plates (111) are arranged at intervals in the protective cavity, and the partition plates (111) divide the protective cavity into a plurality of plug-in cavities (112).

2. The waterproof sealing assembly according to claim 1, wherein: A plurality of first locking protrusions (113) protrude from the inner side wall of each plug-in cavity (112), and the first locking protrusions (113) are arranged circumferentially along the inner side wall of the plug-in cavity (112).

3. The waterproof sealing assembly according to claim 1, characterized in that: The number of the partition plates (111) is an odd number, and the other partition plates (111) are symmetrically arranged relative to the middle partition plate (111); an anti-misalignment step (114) is recessed at one end of the middle partition plate (111).

4. The waterproof sealing assembly according to claim 2, characterized in that: The protective part (1) further includes a sealing part (13), and the sealing part (13) is hermetically connected to the other end of the plug-in part (11).

5. The waterproof sealing assembly according to claim 4, characterized in that: A first sealing member (131) and a second sealing member (132) are circumferentially arranged on the outer side of the sealing part (13), and the first sealing member (131) is arranged closer to the plug-in part (11) than the second sealing member (132).

6. The waterproof sealing assembly according to claim 5, wherein: The first sealing member (131) is an O-ring; the second sealing member (132) is a protruding lip seal and is integrally formed with the sealing part (13).

7. The waterproof sealing assembly according to claim 4, wherein: An adjacent mating surface (133) and a guiding surface (134) are arranged on the inner side of the sealing part (13); the mating surface (133) is arranged close to the plug-in part (11), and a plurality of second locking protrusions (135) are circumferentially arranged at intervals thereon; the guiding surface (134) is inclined and the opening gradually increases towards the outside of the sealing part (13); the protruding height of the first locking protrusion (113) and the second locking protrusion (135) is 0.15 - 0.5 mm.

8. The waterproof sealing assembly according to any one of claims 4-7, characterized in that: A skirt (12) protrudes circumferentially on the outer side of the connection between the plug-in part (11) and the sealing part (13), and a gap is formed between the skirt (12) and the sealing part (13).

9. The waterproof sealing assembly according to claim 8, wherein: A plurality of rib grooves (121) are recessed on one side of the skirt (12) close to the gap, and the rib grooves (121) are arranged at intervals; hanging ears (14) are respectively connected to both sides of the skirt (12), and the hanging ears (14) extend towards the direction close to the plug-in part (11) and then turn and extend towards the direction close to the sealing part (13).

10. An insertion device, characterized in that: It includes a mating connection of a socket (2) and the waterproof sealing assembly according to any one of claims 1 - 9; the socket (2) includes a base and a housing (20) connected to the base, and a plug (21) is arranged inside the housing (20); when the socket (2) is connected to the waterproof sealing assembly, the plug (21) is in mating connection with the plug-in cavity (112).

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