Waterproof sealing structure and plugging device
By designing a waterproof seal structure and using the combination of protective parts and plug-in tables, the problem of poor protection effect of charging plugs in harsh environments is solved, effective sealing and protection of the charging interface is achieved, and internal electrical connections and electronic components are protected.
Patent Information
- Application Number
- CN202422218820.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-10
AI Technical Summary
It is difficult for existing charging plugs to maintain good protective effects in bad weather and different environments, causing moisture or debris to enter the socket, causing damage such as corrosion of electronic components, short circuits of lines and tip discharge.
A waterproof sealing structure is designed, including a protective member and a connector table. The protective member is surrounded to form a protective cavity. The connector table is recessed with a plug cavity, and a locking projection is provided between the inner side walls of the connector cavity to enhance connection stability. The structure is connected in conjunction with the socket, the charging interface is located in the protective cavity, and the outside is sealed and protected.
It effectively protects internal electrical connections and electronic components from damage, ensures that the charging plug maintains good protection in bad weather and different environments, avoids moisture or debris entering, and reduces the risk of corrosion and short circuits.
Smart Images
Figure CN223052465U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of connector sealing, and more specifically, to a waterproof sealing structure 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 good protection under harsh weather conditions (such as rain and snow) and different environments (such as outdoor parking lots and during sea transportation), preventing moisture or debris from entering the socket, thus 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 structure 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 structure includes a protective member. The protective member includes a bottom surface and a protective outer side surface that is disposed around the bottom surface and is hermetically connected to the bottom surface. The protective outer side surface encloses a protective cavity. A plugging platform is disposed in the protective cavity, and there is a gap between the protective outer side surface and the plugging platform; a plugging cavity is recessed and opened on the plugging platform.
[0007] In this solution, the waterproof sealing structure is cooperatively connected with the socket. The protective member makes the charging interface 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] As a preferred embodiment, a plurality of protruding locking protrusions are spaced apart on the inner side wall of the plugging cavity. The locking protrusions can make the connection between the plug and the plugging cavity more firm and tight.
[0009] As a further improvement, the height of the locking protrusion is 0.15 - 0.5 mm.
[0010] For further improvement, the locking protrusions are arranged in an array around the axial center of the insertion cavity. After the plug is connected to the insertion cavity in a matching manner, the plug is centered within the insertion cavity, enabling the two to be centered and matched with each other, avoiding misalignment between the plug and the insertion cavity, which may cause inconsistent deformation of the sealing functional parts, resulting in local overstrength or overweakness, thereby affecting the sealing effect.
[0011] In one embodiment, hanging ears are symmetrically arranged on the outer side of the protective outer surface; the hanging ears are arched to form hanging ear holes on the inner side, one end is connected to the protective outer surface, and the other arched end extends in a direction away from the bottom surface. By arranging the hanging ears on the outer side, the hanging ear holes on the hanging ears are connected to the structures on the socket in a matching manner, which is used to indicate from the outside that the waterproof sealing structure is assembled in place, facilitating visual inspection.
[0012] In one embodiment, a breathing cavity is recessed on the insertion table. The breathing cavity is adjacent to the insertion cavity, and the wall thickness around the breathing cavity and at the bottom of the breathing cavity is 30% - 70% of the wall thickness of other parts of the insertion cavity. By setting the breathing cavity, when the waterproof sealing structure is connected to the socket and the plug is connected to the insertion cavity in a matching manner, the pressure inside and outside the insertion cavity or inside and outside the protective cavity will change, and the soft rubber around the breathing cavity will deform, thereby effectively adjusting the internal and external pressure difference and avoiding destructive effects caused by pressure changes.
[0013] Preferably, the height of the protective outer surface is lower than the height of the insertion table. On the one hand, it reduces the mating contact area between the waterproof sealing structure and the socket when they are connected, reduces the friction force, and makes it easier to assemble the two; on the other hand, it can enable the protective outer surface to avoid other structures on the socket and at the same time reduce the material usage of the waterproof sealing structure.
[0014] Preferably, a number of positioning rod positions are also arranged on the protective outer surface. The positioning rod positions are respectively located on both sides of the protective cavity, and the number of the positioning rod positions on both sides is not equal, to avoid the waterproof sealing structure being installed in the wrong direction.
[0015] Preferably, the protective member is integrally formed.
[0016] The present utility model also provides a plugging device, which includes a socket and the waterproof sealing structure connected in a matching manner; the socket includes a base and a housing connected to the base, and a plug is arranged inside the housing; when the socket is connected to the waterproof sealing structure, the plug is connected to the insertion cavity in a matching manner, and the housing is located in the gap between the protective outer surface and the insertion table.
[0017] In the plugging device of this solution, the charging interface of the socket is sealed and protected by the waterproof sealing structure to protect the internal electrical connections and electronic components from damage. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 Schematic diagram of the connection state between the waterproof sealing structure and the socket
[0019] Figure 2 Another perspective schematic diagram of the connection state between the waterproof sealing structure and the socket
[0020] Figure 3 Schematic diagram of the waterproof sealing structure
[0021] Figure 4 Another perspective schematic diagram of the waterproof sealing structure
[0022] Figure 5 Schematic diagram of the separated state between the waterproof sealing structure and the socket
[0023] Figure 6 Another perspective schematic diagram of the separated state between the waterproof sealing structure and the socket
[0024] Label description:
[0025] 1. Protective part; 10. Plug-in platform; 11. Hanging ear; 12. Plug-in cavity; 121. Locking protrusion; 13. Breathing cavity; 14. Avoidance cavity; 15. Position of positioning rod; 16. Outer protective side surface
[0026] 2. Socket; 21. Outer shell; 22. Plug; 23. Hanging ear seat; 24. Positioning rod
[0027] 3. Fixed surface Detailed implementation manners
[0028] 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
[0029] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model 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. At the same time, the terms such as "upper", "lower", "left", "right", "middle", "inner", "outer", etc. cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present utility model can implement
[0030] Moreover, in addition to being used to represent orientation or positional relationships, 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 this application can be understood according to the specific circumstances.
[0031] Embodiment 1
[0032] As Figure 1 and Figure 2 shown, a waterproof sealing structure provided in this embodiment is cooperatively connected with the charging interface of a socket to provide waterproof and sealing protection for the charging interface.
[0033] Specifically, as shown in combination with Figure 3 and Figure 4 shown, a waterproof sealing structure provided in this embodiment includes a protective member 1. The protective member 1 includes a bottom surface and a protective outer side surface 16 that surrounds the periphery of the bottom surface and is hermetically connected to the bottom surface. The protective outer side surface 16 encloses a protective cavity. An insertion platform 10 is provided inside the protective cavity, that is, inside the protective outer side surface 16, and there is a gap between the protective outer side surface 16 and the insertion platform 10; an insertion cavity 12 is recessed and formed on the insertion platform 10.
[0034] The socket 2 cooperatively connected with the waterproof sealing structure includes a base and a housing 21 connected to the base. The housing 21 forms a charging interface, and a plug 22 is provided inside the housing 21. After the waterproof sealing structure is cooperatively connected with the socket 2, the plug 22 is cooperatively connected with the insertion cavity 12, and the housing 21 is located in the gap between the protective outer side surface 16 and the insertion platform 10, so that the charging interface is located inside the protective cavity, thereby providing external sealing protection for the charging interface to protect the internal electrical connections and electronic components from being damaged.
[0035] In order to make the connection between the plug 22 and the insertion cavity 12 more firm and tight, a number of protruding locking protrusions 121 are spaced apart on the inner side wall of the insertion cavity 12. Specifically, the locking protrusions 121 are arranged in an array around the axial center of the insertion cavity 12. The locking protrusions 121 are evenly arranged on the inner side of the insertion cavity 12 and are arranged along the circumferential direction of the inner side of the insertion cavity 12. After the plug 22 is cooperatively connected with the insertion cavity 12, the plug 22 is centered inside the insertion cavity 12, so that the two are centered and cooperated with each other, avoiding misalignment of the plug 22 or the insertion cavity 12, resulting in inconsistent deformation of the sealing functional parts, forming local overstrength or overweakness, thereby affecting the sealing effect.
[0036] In a preferred embodiment, the locking protrusion 121 is in the shape of a protruding circular bulge, and the protruding height of the locking protrusion 121 is 0.3 mm. When the plug 22 is connected and fitted with the socket cavity 12, there is an interference amount of 0.3 mm between the locking protrusion 121 and the plug 22, so that the socket cavity 12 generates a radial thrust on the plug 22 through the locking protrusion 121. On the one hand, the position of the plug 22 is centered, and on the other hand, the plug 22 is stably and firmly connected and fitted with the socket cavity 12.
[0037] Specifically, the waterproof sealing structure is a soft rubber sealing structure, which is made of an elastic material, such as rubber material, etc. The setting of the locking protrusion 121 enables the waterproof sealing structure to be centered and fitted with the socket, and at the same time enables the side surfaces where the plug 22 and the socket cavity 12 are connected to fit tightly with each other, so as to achieve a good sealing effect.
[0038] It should be noted that in other cases, the protruding height of the locking protrusion 121 can also be set to 0.15 mm, 0.5 mm, etc., but the height range of the locking protrusion 121 is 0.15 - 0.5 mm. On the one hand, it can generate a radial thrust on the plug 22, and on the other hand, it is necessary to enable the plug 22 and the socket cavity 12 to be connected and fitted with each other.
[0039] On the outer side of the protective outer side surface 16, hanging ears 11 are symmetrically arranged. The hanging ears 11 are in an arched shape, so that a hanging ear hole is formed inside the hanging ears 11. One end of the hanging ears 11 is connected to the protective outer side surface 16, and the other end with an arched shape extends in a direction away from the bottom surface. The hanging ears 11 are arranged on the outer side, and the hanging ear holes on the hanging ears 11 are connected and fitted with the structure on the socket 2, which is used to indicate from the outside that the waterproof sealing structure is assembled in place, and the connection and fitting of the hanging ears 11 with the structure on the socket 2 can also prevent the waterproof sealing structure from falling off. Specifically, the height of the hanging ears 11 is set to be more than 10 mm, so that the shape of the hanging ears 11 is easier to change and the hanging ears 11 are more easily connected and fitted with the structure on the socket 2.
[0040] In a preferred embodiment, a breathing cavity 13 is also recessed on the plug platform 10. The breathing cavity 13 is adjacent to the socket cavity 12, and the wall thickness around the breathing cavity 13 and at the bottom of the breathing cavity 13 is 30% - 70% of the wall thickness of other parts of the socket cavity 12. More specifically, two breathing cavities 13 are provided, and two socket cavities 12 are provided.
[0041] See Figure 4 As shown, an avoidance cavity 14 is recessed and opened at the central position of the plug platform 10. The breathing cavities 13 are respectively located on the opposite sides of the avoidance cavity 14, and the socket cavities 12 are respectively located on the other opposite sides of the avoidance cavity 14. The breathing cavities 13 and the avoidance cavity 14 are symmetrically arranged, so that when the waterproof sealing structure is connected and fitted with the socket, the force at the connection and fitting part is uniform, and the protection effect is improved.
[0042] A breathing cavity 13 is provided. The waterproof sealing structure is connected to the socket. When the plug 22 is connected to the mating cavity 12, the pressure inside and outside the mating cavity 12 or inside and outside the protective cavity will change, and the soft rubber around the breathing cavity 13 will deform, thereby effectively adjusting the internal and external pressure difference and avoiding destructive effects caused by pressure changes. Moreover, the wall thickness around the breathing cavity 13 and at the bottom of the breathing cavity 13 is thinner than the wall thickness of other parts of the mating cavity 12, making the breathing cavity 13 more easily deformable, so as to balance the influence brought by the internal and external pressure difference. For example, when the mating cavity 12 is provided on the mating platform 10, there is a certain wall thickness between the inner side wall of the mating cavity 12 and the outer side wall of the mating platform 10, and the wall thickness here is the wall thickness of other parts of the mating cavity 12, and this wall thickness is thicker than the wall thickness around the breathing cavity 13.
[0043] Combined with Figure 4 as shown, the height of the outer protective surface 16 is lower than the height of the mating platform 10 (described in the Figure 4 viewing orientation). On the one hand, when the waterproof sealing structure is connected to the socket, the mating contact area between the two is reduced, the friction force is reduced, and the two are more easily assembled; on the other hand, the outer protective surface 16 can avoid other structures on the socket, and at the same time, the material usage of the waterproof sealing structure is reduced, and the cost is lowered.
[0044] A number of positioning rod positions 15 are also provided on the outer protective surface 16. The positioning rod positions 15 are located on the outer protective surface 16 and on both sides of the protective cavity, and the number of positioning rod positions 15 on both sides is not equal. Specifically, three positioning rod positions 15 are provided, one on one side of the protective cavity and three on the other side. Of course, in other embodiments, the number of positioning rod positions 15 can also be set to other values. The unequal number of positioning rod positions 15 on both sides can prevent the waterproof sealing structure from being installed reversely.
[0045] The protective part 1 in this embodiment is integrally formed, for example, it can be made by mold injection. Integrally forming the protective part 1 can make the connection between the various components in the waterproof sealing structure more firm and also make the appearance of the waterproof sealing structure better.
[0046] Embodiment 2
[0047] Combined with Figure 5 and Figure 6 as shown, this embodiment also provides a plug-in device, which includes a socket 2 and the waterproof sealing structure described in Embodiment 1 that are connected in cooperation.
[0048] The socket 2 includes a base and a housing 21 connected to the base. A plug 22 is disposed inside the housing 21, and the number of plugs 22 corresponds to the number of insertion cavities 12. When the socket 2 is connected to the waterproof sealing structure, the plug 22 is cooperatively connected to the insertion cavity 12, and the housing 21 is located at the interval between the protective outer surface 16 and the insertion platform 10. The protective outer surface 16 protects the charging interface within the protective cavity, thereby externally sealing and protecting the charging interface to protect the internal electrical connections and electronic components from damage.
[0049] Specifically, a positioning rod 24 cooperatively connected to the positioning rod position 15 is further disposed on the outer side of the housing 21, and a lug seat 23 cooperatively connected to the lug hole of the lug 11 is also provided.
[0050] Generally, the base of the socket 2 is fixed on the fixing surface 3. The socket 2 is cooperatively connected to the waterproof sealing structure. After connection, the plug 22 is connected to the insertion cavity 12, the positioning rod 24 is cooperatively connected to the positioning rod position 15, and the lug 11 is hung on the lug seat 23 through the lug hole. The connection of the socket 2 to the waterproof sealing structure is completed, realizing the sealing protection of the socket 2 by the waterproof sealing structure.
[0051] 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 can be internal communication 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.
[0052] The above schematically describes the present invention and its implementation manners. This description is not restrictive, and only one of the implementation manners of the present invention is shown in the drawings. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, creatively design a structural manner and an embodiment similar to this technical solution, they shall fall within the protection scope of the present invention.
Claims
1. A waterproof sealing structure, characterized in that: The protective member (1) comprises a bottom surface and a protective outer side surface (16) arranged around the bottom surface and sealed to the bottom surface, the protective outer side surface (16) encloses a protective cavity, a connector (10) is arranged in the protective cavity, and the protective outer side surface (16) and the connector (10) are spaced apart; the connector (10) is recessed to form a connector cavity (12).
2. The waterproof sealing structure according to claim 1, characterized in that: A plurality of protruding locking protrusions (121) are arranged at intervals on the inner side wall of the connecting cavity (12).
3. The waterproof sealing structure according to claim 2, characterized in that: The height of the locking protrusion (121) is 0.15-0.5 mm.
4. The waterproof sealing structure according to claim 2, characterized in that: The locking protrusions (121) are arranged in an array around the axial center of the connecting cavity (12).
5. The waterproof sealing structure according to any one of claims 1 to 4, characterized in that: The outer side of the protective outer side (16) is symmetrically provided with a hanging ear (11); the hanging ear (11) is arched and has a hanging ear hole formed on the inner side, one end of which is connected to the protective outer side (16) and the other end of which is arched and extends in a direction away from the bottom surface.
6. The waterproof sealing structure according to claim 5, characterized in that: A breathing cavity (13) is also recessed on the connector (10), the breathing cavity (13) is adjacent to the connector cavity (12), and the wall thickness around the breathing cavity (13) and at the bottom of the breathing cavity (13) is 30% to 70% of the wall thickness of other parts of the connector cavity (12).
7. The waterproof sealing structure according to claim 5, characterized in that: The height of the protective outer side surface (16) is lower than the height of the connector (10).
8. The waterproof sealing structure according to claim 7, characterized in that: A plurality of positioning rod positions (15) are also arranged on the outer protective surface (16), and the positioning rod positions (15) are respectively located on two sides of the protective cavity, and the number of the positioning rod positions (15) on the two sides is unequal.
9. The waterproof sealing structure according to claim 1, characterized in that: The protective element (1) is integrally formed.
10. A plug-in device, characterized in that: It comprises a matingly connected connector (2) and the waterproof sealing structure according to any one of claims 1 to 9; the connector (2) comprises a base and a shell (21) connected to the base, and a connector plug (22) is arranged in the shell (21); when the connector (2) is connected to the waterproof sealing structure, the connector plug (22) is matingly connected to the connector cavity (12), and the shell (21) is located in the interval between the protective outer side surface (16) and the connector platform (10).