Charging socket and automobile

Abstract

The utility model discloses a charging socket and an automobile, the charging socket comprises a first shell and a second shell, the first shell comprises a first body and a first sealing structure, the first sealing structure is arranged around the first body, and the first sealing structure is connected with the first body; the second shell comprises a second body and a second sealing structure, the second sealing structure is arranged around the second body, and the second sealing structure is connected with the second body; the first sealing structure and the second sealing structure are connected in a sealed mode. According to the charging socket, the first sealing structure of the first shell and the second sealing structure of the second shell are directly connected in a sealed mode, a sealing gasket structure in a conventional shell is omitted, connection between the first shell and the second shell is achieved without an additional structure, the overall structure of the charging socket is simpler, connection air-tight sealing is good, and the charging socket is more convenient to use. Meanwhile, the charging socket cost is effectively saved, and the charging socket space is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of automotive connectors, and particularly relates to a charging socket and an automobile. Background Art

[0002] The power battery of a new energy vehicle needs to be charged to ensure that it has sufficient power to drive the vehicle forward. Among them, the charging socket is one of the essential connectors for charging the power battery. The charging socket needs to ensure overall sealing to avoid electric leakage in order to ensure the safety of the whole vehicle. Summary of the Utility Model

[0003] Purpose of the Utility Model: The embodiments of this application provide a charging socket, aiming to solve the problem of the existing charging socket being sealed to avoid electric leakage and ensure the safety of the whole vehicle; another purpose of the embodiments of this application is to provide an automobile.

[0004] Technical Solution: A charging socket described in the embodiments of this application includes a first housing and a second housing. The first housing includes a first body and a first sealing structure. The first sealing structure is disposed around the first body and is connected to the first body. The second housing includes a second body and a second sealing structure. The second sealing structure is disposed around the second body and is connected to the second body. Among them, the first sealing structure is sealingly connected to the second sealing structure.

[0005] Correspondingly, an automobile described in the embodiments of this application includes the charging socket as described in any one of the foregoing embodiments and a power battery. The charging socket is connected to the power battery through a wire and is used to charge the power battery.

[0006] Advantageous Effects: Compared with the prior art, a charging socket in the embodiments of this application directly seals and connects the first sealing structure of the first housing and the second sealing structure of the second housing, eliminating the gasket structure in the conventional housing and without using an additional structure to connect the first housing and the second housing, making the overall structure of the charging socket simpler, with good connection airtightness, effectively saving the cost of the charging socket and reducing the space of the charging socket.

[0007] Compared with the prior art, an automobile in the embodiments of this application includes the charging socket as described in any one of the foregoing embodiments and a power battery. The charging socket is connected to the power battery through a wire and is used to charge the power battery. It can be understood that the automobile of this application includes all the technical features and technical effects of the charging socket in the foregoing embodiments, which will not be elaborated here. Description of the Drawings

[0008] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0009] Figure 1 is the overall structural schematic diagram of a charging socket according to an embodiment of the present application;

[0010] Figure 2 is the overall structural schematic diagram of the first housing of a charging socket according to an embodiment of the present application;

[0011] Figure 3 is the overall structural schematic diagram of the second housing of a charging socket according to an embodiment of the present application;

[0012] Figure 4 is the bottom view of the assembled first housing and the second housing of a charging socket according to an embodiment of the present application;

[0013] Figure 5 is Figure 4 the cross-sectional view of the A-A section in;

[0014] Figure 6 is Figure 5 the enlarged view of part B in;

[0015] Figure 7 is Figure 5 the enlarged view of part B in.

[0016] Reference numerals: 1, first housing; 11, first body; 12, first sealing structure; 121, first groove; 122, first limiting portion; 123, third limiting portion; 124, welding table; 13, fourth limiting portion; 14, second groove; 15, first through hole; 2, second housing; 21, second body; 22, second sealing structure; 221, first convex portion; 2211, first section; 2212, second section; 222, second limiting portion; 23, fifth limiting portion; 24, second through hole; 3, central axis. Detailed implementation manners

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0018] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality of" means two or more, and "at least one" means one, two or more, unless otherwise specifically defined. In the description of the present application, "vertical" means completely vertical at 90° or almost completely vertical. For example, within the range of an included angle of 80° to 100°, it is considered vertical. Similarly, "parallel" means completely parallel or almost completely parallel. For example, within the range of 10° of complete parallelism, it is considered parallel.

[0019] In a new energy vehicle, a charging socket is required to charge the power battery. Among them, the charging socket needs to be provided with a front cover and a rear cover, and enclose a sealed accommodation space to accommodate the connection terminals. Among them, the front cover and the rear cover are usually sealed by a gasket, resulting in a complex overall assembly process of the charging socket, and it is easy to have airtight problems. Moreover, the internal space is large after the product is assembled, and the overall occupied space is also large.

[0020] In view of this, an embodiment of the present application provides a charging socket, aiming to solve at least one of the above problems.

[0021] Please refer to Figures 1-3 Specifically, an embodiment of the present application provides a charging socket, which includes a first housing 1 and a second housing 2. The first housing 1 includes a first body 11 and a first sealing structure 12. The first sealing structure 12 is disposed around the first body 11 and is connected to the first body 11. The second housing 2 includes a second body 21 and a second sealing structure 22. The second sealing structure 22 is disposed around the second body 21 and is connected to the second body 21. Among them, the first sealing structure 12 is sealingly connected to the second sealing structure 22.

[0022] The charging socket according to the embodiment of the present application is directly and hermetically connected through the first sealing structure 12 of the first housing 1 and the second sealing structure 22 of the second housing 2, eliminating the gasket structure in the conventional housing and realizing the connection of the first housing 1 and the second housing 2 without an additional structure. This makes the overall structure of the charging socket simpler, with good connection airtightness, effectively saving the cost of the charging socket and reducing the space of the charging socket.

[0023] In the embodiment of the present application, the first sealing structure 12 is disposed on one side of the first body 11 facing the second body 21, and the second sealing structure 22 is disposed on one side of the second body 21 facing the first body 11. The first housing 1 and the second housing 2 are hermetically connected by connecting the first sealing structure 12 and the second sealing structure 22, without additionally preparing a gasket to be filled between the first housing 1 and the second housing 2, which can achieve a good sealing effect and a simpler overall structure.

[0024] It should be noted that, in the embodiment of the present application, the first sealing structure 12 is hermetically connected to the first body 11, and the second sealing structure 22 is hermetically connected to the second body 21, so as to ensure the airtightness of the whole after the first housing 1 and the second housing 2 are hermetically connected. Further, the first sealing structure 12 and the first body 11 may be an integral structure, and the second sealing structure 22 and the second body 21 may also be an integral structure, specifically, they may be integrally injection molded.

[0025] It should be noted that since the charging socket needs to ensure the insulation of the internal wiring terminals, both the first housing 1 and the second housing 2 are insulating parts, and the insulating parts may be plastic parts. In a specific implementation, the first housing 1 may be a front cover, and the second housing 2 may be a rear cover. The rear cover and the front cover may be integrally injection molded plastic parts.

[0026] It should also be noted that through holes are provided in both the front cover and the rear cover of the charging socket for the wires and terminals of the wiring terminals to pass through, so as to facilitate the electrical connection between the charging pile and the power battery, and further realize the charging of the power battery.

[0027] It should be noted that the sealing connection between the first sealing structure 12 and the second sealing structure 22 can specifically be a direct adhesive connection between the first sealing structure 12 and the second sealing structure 22. Alternatively, the first sealing structure 12 and the second sealing structure 22 are welded together, specifically by laser welding, so that one of the first sealing structure 12 or the second sealing structure 22 is melted and then adhesively bonded to the other non-melted one. It can also be that the first sealing structure 12 is disposed around the outer peripheral side of the second sealing structure 22, and a sealing ring is provided on the inner peripheral side of the first sealing structure 12 or the outer peripheral side of the second sealing structure 22. The sealing ring is extruded and deformed to fill between the first sealing structure 12 and the second sealing structure 22, so as to achieve the sealing connection between the first sealing structure 12 and the second sealing structure 22.

[0028] Please refer to Figures 2-7 , in some embodiments, the first sealing structure 12 has a first groove 121, and the opening of the first groove 121 faces the second sealing structure 22; the second sealing structure 22 includes a first protrusion 221, the first protrusion 221 is disposed on the side of the second body 21 facing the first sealing structure 12, and the first protrusion 221 is connected to the second body 21; the first protrusion 221 is disposed in the first groove 121 and is sealingly connected to the inner wall of the first groove 121.

[0029] In the embodiments of the present application, by providing the first protrusion 221 and the first groove 121 to cooperate with each other, the connection between the first housing 1 and the second housing 2 is realized. Among them, the first protrusion 221 and the first groove 121 limit each other, and can effectively align the first housing 1 and the second housing 2, so as to facilitate the alignment of the through holes on the first housing 1 and the second housing 2, facilitate the installation of the wiring terminals, and avoid the interference of the housing on the wiring terminals during installation caused by the misalignment of the first housing 1 and the second housing 2.

[0030] It should be noted that in the embodiments of the present application, the first convex portion 221 is disposed in the first groove 121, and the first convex portion 221 is hermetically connected to the inner wall of the first groove 121 to achieve the sealed connection between the first housing 1 and the second housing 2. Specifically, in the embodiments of the present application, sealant may be pre-filled in the first groove 121. When the first convex portion 221 is inserted into the first groove 121, it contacts the sealant and extrudes the sealant, so that the sealant is filled between the side wall of the first convex portion 221 and the inner wall of the first groove 121, realizing the adhesive bonding between the first convex portion 221 and the first groove 121, and thus realizing the seal between the first housing 1 and the second housing 2. Alternatively, the first groove 121 and the first convex portion 221 are in interference fit, the first convex portion 221 is fitted in the first groove 121, and a sealing buffer (such as a sealing rubber ring) is filled at the bottom of the first groove 121 to achieve the sealed connection between the first convex portion 221 and the first groove 121. Of course, it may also be that the first convex portion 221 penetrates through the first groove 121, and the first convex portion 221 is welded to the inner wall of the first groove 121 by laser welding; specifically, by laser heat melting, a part of the first convex portion 221 is melted in the first groove 121 and flows in the first groove 121 to fill between the first groove 121 and the first convex portion 221, and connect the inner wall of the first groove 121 and the first convex portion 221, realizing the sealed connection between the first groove 121 and the first convex portion 221.

[0031] Please refer to Figure 2 and Figure 3 , in some embodiments, the first groove 121 is an annular groove, the first groove 121 is disposed around the side of the first sealing structure 12 facing the second sealing structure 22, the first convex portion 221 is an annular protrusion, and the first convex portion 221 is disposed around the side of the second body 21 facing the first sealing structure 12.

[0032] In the embodiments of the present application, by setting the first groove 121 as an annular groove and the first convex portion 221 as an annular protrusion, when the first convex portion 221 is hermetically connected to the inner wall of the first groove 121, the seal between the first housing 1 and the second housing 2 can be directly achieved.

[0033] Please refer to Figure 6 and Figure 7 , in some embodiments, a part of the first convex portion 221 is heat melted in the first groove 121 and hermetically connected to the inner wall of the first groove 121.

[0034] In the embodiment of the present application, at least a part of the first convex portion 221 is heat-melted into the first groove 121. After heat-melting, the part of the convex portion fills the gap between the first convex portion 221 and the inner wall of the first groove 121, and can fill the gap between the first convex portion 221 and the inner wall of the first groove 121 after gradually cooling, and bond the inner walls of the first convex portion 221 and the first groove 121, so as to realize the sealed connection between the inner wall of the first convex portion 221 and the first groove 121, and further realize the sealed connection between the first sealing structure 12 and the second sealing structure 22, ensuring the airtightness after the connection of the first housing 1 and the second housing 2. This connection method not only has a simple structure but also has good airtightness. At the same time, after the first convex portion 221 is heat-melted and fills the gap between the first groove 121 and the first convex portion 221, it can reduce the interval between the first housing 1 and the second housing 2, reduce the volume after the connection of the first housing 1 and the second housing 2, and reduce the space occupation.

[0035] It should be noted that, in the embodiment of the present application, the heat-melting of the first convex portion 221 can be realized by laser welding after the first convex portion 221 is assembled into the first groove 121. By squeezing the first housing 1 and the second housing 2 against each other, the heat-melted part of the first convex portion 221 is squeezed between the inner wall of the first groove 121 and the non-heat-melted part of the first convex portion 221, and finally bond the inner walls of the first convex portion 221 and the first groove 121. At the same time, the first convex portion 221 can also be pre-heat-melted and quickly assembled into the first groove 121, and at the same time squeeze the first housing 1 and the second housing 2, so that the heat-melted part of the first convex portion 221 fills the gap between the non-heat-melted part of the first convex portion 221 and the inner wall of the first groove 121 and solidifies to bond the non-heat-melted part of the first convex portion 221 and the inner wall of the first groove 121, realizing the sealed connection between the inner wall of the first convex portion 221 and the first groove 121.

[0036] In some embodiments, the first housing 1 is a light-transmitting housing.

[0037] In the embodiment of the present application, it is preferably to use laser welding to realize the sealed connection between the first sealing structure 12 and the second sealing structure 22, specifically the sealed connection between the inner wall of the first convex portion 221 and the first groove 121. At the same time, in order to realize the partial heat-melting of the first convex portion 221 and ensure the overall structural stability of the first sealing structure 12, by setting the first housing 1 as a light-transmitting housing, it is convenient for the high-energy laser beam to pass through during laser welding and realize the partial heat-melting of the first convex portion 221.

[0038] It should be noted that the first housing 1 is a light-transmitting housing, the second housing 2 is a non-light-transmitting housing, and both the first housing 1 and the second housing 2 are plastic parts formed by injection molding. In this way, when irradiated by a high-energy laser beam, the first housing 1 will not melt or slightly melt, while the second housing 2 is non-light-transmitting. When the high-energy laser beam passes through the first housing 1 and irradiates on the first convex portion 221, partial melting of the first convex portion 221 is achieved.

[0039] It should also be noted that in the embodiment of the present application, the first housing 1 is a light-transmitting housing. The first housing 1 can be polymerized from one of polyamide and polybutylene terephthalate and glass fiber, and the content of the glass fiber can be 30%. The first housing 1 made of the above materials has high strength and stiffness, and at the same time has high corrosion resistance, wear resistance, heat resistance, and insulation. Moreover, the first housing 1 made of the above materials has a good light transmittance, can achieve the transmission of a high-energy laser beam, and can ensure that the first housing 1 will not be melted and deformed by the high-energy laser beam.

[0040] Please refer to Figures 2-3 、 Figures 5-7 , in some embodiments, the first sealing structure 12 includes a first limiting portion 122. The first limiting portion 122 is disposed around one side of the first body 11 facing the second sealing structure 22, and the first limiting portion 122 is connected to the first body 11. The first limiting portion 122 is used to enclose a first groove 121; the charging socket has a central axis 3. The first limiting portion 122 is disposed on one side of the first convex portion 221 close to the central axis 3, and the first limiting portion 122 is hermetically connected to the first convex portion 221; the second sealing structure 22 includes a second limiting portion 222. The second limiting portion 222 is disposed around one side of the second body 21 facing the first sealing structure 12, and the second limiting portion 222 is connected to the second body 21. The second limiting portion 222 is disposed on one side of the first convex portion 221 close to the central axis 3, and the second limiting portion 222 is connected to the first convex portion 221; at least a part of the first convex portion 221 protrudes on one side of the second limiting portion 222 facing the first sealing structure 12. Along the arrangement direction of the first housing 1 and the second housing 2, the second limiting portion 222 is connected to the first limiting portion 122.

[0041] In the embodiment of the present application, by providing the first limiting portion 122 and the second limiting portion 222, when the first housing 1 and the second housing 2 are assembled, mutual limitation of the first housing 1 and the second housing 2 can be achieved in the arrangement direction of the first housing 1 and the second housing 2, and it can prevent local structures inside the charging socket from being squeezed and deformed due to excessive squeezing of the first housing 1.

[0042] It should be noted that in the embodiments of the present application, when the first housing 1 and the second housing 2 are assembled, the second housing 2 can be fixed on the fixture, and the movable manipulator grabs the first housing 1 and docks and assembles it with the second housing 2. After the first convex portion 221 passes through the first groove 121, one end of the first convex portion 221 away from the second body 21 is heat-melted. Correspondingly, the second housing 2 is gradually pressed against the first housing 1, and the heat-melted portion of the first convex portion 221 is extruded into the space between the first convex portion 221 and the inner wall of the first groove 121 and filled therein. After the laser beam is withdrawn, the heat-melted portion of the first convex portion 221 gradually cools and solidifies, thereby realizing the connection and sealing between the first convex portion 221 and the inner wall of the first groove 121.

[0043] It should also be noted that while the first convex portion 221 is heat-melted, the first housing 1 is pressed downwards, and the bottom of the first groove 121 presses the first convex portion 221. At this time, the bottom of the first groove 121 abuts against the first convex portion 221. Therefore, the heat-melted portion of the first convex portion 221 will be tightly bonded to the bottom of the first groove 121, and thus the first convex portion 221 will also be hermetically connected to the inner wall of the first groove 121 at this time.

[0044] Please refer to Figure 2 、 Figure 6 and Figure 7 In some embodiments, the first sealing structure 12 further includes a third limiting portion 123. The third limiting portion 123 is disposed around the side of the first body 11 facing the second sealing structure 22, and the third limiting portion 123 is connected to the first body 11. The third limiting portion 123 is disposed around the side of the first limiting portion 122 away from the central axis 3, and the third limiting portion 123 is spaced from the first limiting portion 122, and is used to enclose the first groove 121; the third limiting portion 123 is disposed on the side of the first convex portion 221 away from the first limiting portion 122, and the third limiting portion 123 is hermetically connected to the first convex portion 221.

[0045] In the embodiments of the present application, the third limiting portion 123 is used to enclose the first groove 121 and wrap and limit the first convex portion 221 on the outside of the first convex portion 221, so as to fix the first convex portion 221, and increase the bonding area between the first convex portion 221 and the first sealing structure 12, thereby also ensuring the airtightness of the sealing connection between the first sealing structure 12 and the second sealing structure 22.

[0046] Please refer to Figure 7 In some embodiments, along the direction in which the first housing 1 and the second housing 2 are arranged, the size of the first groove 121 is a mm, and the size of the third limiting portion 123 is b mm, satisfying: a < b.

[0047] In the embodiment of the present application, the third limiting portion 123 is used to enclose the first groove 121, and along the direction in which the first housing 1 and the second housing 2 are arranged, the size of the third limiting portion 123 is larger than the size of the first groove 121, so that a part of the third limiting portion 123 protrudes from one side of the first groove 121. At this time, when a part of the first convex portion 221 is melted and can overflow between the non-melted parts of the first groove 121 and the first convex portion 221, it can provide more overflow space for the melted part of the first convex portion 221. When the overall volume of the first convex portion 221 is large and the melted part is also large, more melted parts can overflow between the third limiting portion 123 and the non-melted part of the first convex portion 221, thereby increasing the bonding area between the first convex portion 221 and the first sealing structure 12, and thus improving the sealing effect. At the same time, it can prevent more melted fluid from overflowing and being exposed outside the first housing 1, resulting in poor appearance, and ensure that the first housing 1 and the second housing 2 can be smoothly assembled into the corresponding mounting holes on the vehicle body after being sealed and connected.

[0048] In some embodiments, along the direction in which the first housing 1 and the second housing 2 are arranged, the size of the first groove 121 is a mm, and the size of the first convex portion 221 protruding from the second limiting portion 222 is c mm, satisfying: a < c.

[0049] In the embodiment of the present application, the size of the first convex portion 221 protruding from the side of the second limiting portion 222 facing the first housing 1 is greater than the depth of the first groove 121. At this time, it can be ensured that the first convex portion 221 can smoothly contact the bottom of the first groove 121, thereby facilitating the realization of the sealed connection between the inner wall of the first groove 121 and the first convex portion 221.

[0050] It should be noted that when the first convex portion 221 and the first groove 121 are sealed and connected by laser welding, a part of the first convex portion 221 needs to be melted. At this time, the melted first convex portion 221 and the bottom of the first groove 121 can achieve sealed bonding. Among them, as the difference between c and a becomes larger, at this time, the first convex portion 221 can be partially melted and bonded to the inner wall of the first groove 121, realizing the sealed connection between the first sealing structure 12 and the second sealing structure 22.

[0051] Of course, it should also be noted that since the melted first convex portion 221 will form a fluid that overflows to the periphery, in order to ensure the good appearance of the charging socket, it is further preferably 0.2 ≤ c - a ≤ 0.8.

[0052] It should also be noted that the specific numerical range of c - a can be any one value or the range between any two values among: 0.2, 0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, 0.3, 0.32, 0.35, 0.38, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8. Among them, as the value of c - a gradually increases, the volume of the hot melt of the first convex portion 221 is also larger, and the corresponding fluid - like hot - melt plastic overflowing between the first convex portion 221 and the inner wall of the first groove 121 is also more, thereby realizing a tighter sealed connection between the first convex portion 221 and the first groove 121, and the airtightness is getting better and better. When c - a < 0.2, the size of the first convex portion 221 that can be hot - melted is small, the welding and sealing effect is not good, and even the situation of unable to weld may occur.

[0053] It should also be noted that a, b, and c in the embodiments of the present application can all be measured by conventional dimensional tools such as a straight ruler, a micrometer, or a vernier caliper.

[0054] The following specifically describes the charging socket of the present application in combination with the specific embodiments and comparative examples in Table 1.

[0055] Table 1

[0056]

[0057]

[0058] As can be seen from the above table, by setting a < b, when the first convex portion 221 is laser - welded and hot - melted in the first groove 121, the hot - melted first convex portion 221 will not have overflow material to affect the appearance and external dimensions of the charging socket. By setting a < c, the welding between the first convex portion 221 and the inner wall of the first groove 121 can be realized, and the sealed connection between the first sealing structure 12 and the second sealing structure 22 can be realized. Further, it is preferably 0.2 ≤ c - a ≤ 0.8.

[0059] Please refer to Figure 6 and Figure 7, in some embodiments, the first convex portion 221 includes a first section 2211 and a second section 2212. The first section 2211 is connected to the second body 21 along the direction in which the first housing 1 and the second housing 2 are arranged; the first section 2211 is disposed in the first groove 121 and is hermetically connected to the inner wall of the first groove 121; when the first convex portion 221 is not hermetically connected to the inner wall of the first groove 121, the second section 2212 is connected to the side of the first section 2211 away from the second body 21; when the first convex portion 221 is hermetically connected to the inner wall of the first groove 121, the second section 2212 is heat-melted in the first groove 121 and is hermetically connected to the inner wall of the first groove 121 and the first section 2211. Wherein, the remaining volume after the first groove 121 accommodates the first section 2211 is V1 mm 3 , and the volume of the second section 2212 is V2 mm 3 , satisfying: V2 / V1≥0.3.

[0060] With this structural arrangement, when the first convex portion 221 is hermetically connected to the inner wall of the first groove 121, the first convex portion 221 has sufficient heat-melted portion to fill in the first groove 121, so that there is sufficient heat-melted second section 2212 between the first section 2211 and the inner wall of the first groove 121, thereby ensuring the airtightness of the hermetic connection between the first section 2211 and the first groove 121.

[0061] In the embodiments of the present application, the first section 2211 is used to be disposed in the first groove 121 to realize the mutual limitation and connection between the first housing 1 and the second housing 2. In the embodiments of the present application, the first section 2211 is used for connection and support. The second section 2212 is heat-melted in the first groove 121 by laser welding and flows in the first groove 121, so as to fill between the inner wall of the first groove 121 and the first section 2211, realizing the hermetic connection between the inner wall of the first groove 121 and the first section 2211, and thus realizing the hermetic connection between the first housing 1 and the second housing 2.

[0062] It should be noted that in the present application, the second section 2212 of the first convex portion 221 is heat-melted in the first groove 121 by laser welding, which saves the cost of additionally manufacturing a sealing component, reduces the assembly process and difficulty. At the same time, by heat-melting the second section 2212 in the first groove 121 and using the melting and collapse of the second section 2212, the airtightness of the seal between the first convex portion 221 and the inner wall of the first groove 121 can be gradually improved. Specifically, the more the second section 2212 melts, the more heat-melted fluid fills between the inner wall of the first groove 121 and the first section 2211, and the corresponding sealing connection area is larger, so the sealing effect is better.

[0063] It should also be noted that when the first convex portion 221 of the present application is not hermetically connected to the inner wall of the first groove 121, the first section 2211 and the second section 2212 are connected along the arrangement direction of the first housing 1 and the second housing 2. Thus, when the first housing 1 and the second housing 2 are assembled, the second section 2212 first enters into the first groove 121 and abuts against the bottom of the first groove 121. At this time, laser is released from the outside of the first groove 121 through laser welding to melt at least a part of the second section 2212, so as to reduce the size of the second section 2212 along the arrangement direction of the first housing 1 and the second housing 2, enabling the first section 2211 to enter more into the first groove 121. Meanwhile, the melted part of the second section 2212 overflows into the first groove 121 under the extrusion of the first section 2211 and overflows between the first section 2211 and the inner wall of the first groove 121. After the laser welding stops, the hot-melted second section 2212 gradually cools and solidifies and adheres between the first section 2211 and the side wall of the first groove 121, realizing the hermetic connection between the first section 2211 and the inner wall of the first groove 121. Meanwhile, the first convex portion 221 abuts against the bottom of the first groove 121 along the arrangement direction of the first housing 1 and the second housing 2 and is bonded together by the melted part of the second section 2212, achieving the seal here.

[0064] It should be noted that the first housing 1 is usually also an integrally formed plastic injection molding part. And during the laser welding process, the hot-melted first convex portion 221 has a certain fluidity, but the fluidity is much smaller than that of water. Therefore, when the first housing 1 and the second housing 2 are connected and laser welding is performed, the first housing 1 still needs to extrude towards the second housing 2 to make the melted second section 2212 overflow between the first section 2211 and the inner wall of the first groove 121, but it will not overflow excessively, so that the first section 2211 and the inner wall of the first groove 121 can be fully bonded.

[0065] It should also be noted that the volume ratio of the second section 2212 to the remaining volume of the first groove 121 after accommodating the first section 2211 is V2 / V1≥0.3. Further, to prevent the second section 2212 from having too large a volume and overflowing outside the connection between the second housing 2 and the first housing 1, the volume ratio of the second section 2212 to the remaining volume of the first groove 121 after accommodating the first section 2211 is preferably 0.3≤V2 / V1≤1. At this time, it can be ensured that the hot-melted fluid-state second section 2212 has a large contact bonding area with both the first convex portion 221 and the inner wall of the first groove 121, thereby ensuring the airtightness of the hermetic connection between the first sealing structure 12 and the second sealing structure 22.

[0066] It should also be noted that the specific numerical range of V2 / V1 can be any one value or the range between any two values among: 0.3, 0.31, 0.32, 0.33, 0.34, 0.35, 0.36, 0.37, 0.38, 0.39, 0.4, 0.42, 0.45, 0.48, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1. Among them, as the value of V2 / V1 gradually increases, the volume of the second section 2212 placed in the first groove 121 also increases, thereby realizing a more tightly sealed connection between the first convex portion 221 and the first groove 121, and the airtightness is getting better and better.

[0067] It should also be noted that the specific measurement method of the volume of this application can be determined according to the specific shapes of the first groove 121 and the first convex portion 221. If both the first groove 121 and the second section of the first convex portion 221 are conventional annular structures, at this time, it can be calculated by using the annular calculation formula and measuring the corresponding dimension parameters. If the second section 2212 of the first groove 121 and the first convex portion 221 is an irregular shape, at this time, a measuring cup and water can be used for measurement. Specifically, first pour water into the first groove 121 until the first groove 121 is full of water, and then pour the water in the first groove 121 into the measuring cup. At this time, the volume of the first groove 121 can be obtained and recorded as V3 mm 3 ; then put a certain volume of water in the measuring cup, record the initial water level as V4 mm 3 , and completely immerse the second section 2212 in the water, record the water level at this time as V5 mm 3 , then completely immerse the first section 2211 and the second section 2212 together in the water, record the current water level as V6 mm 3 , at this time, the volume of the first section 2211 is (V6 - V5) mm 3 , the volume of the second section 2212 is V2 = (V5 - V4) mm 3 , the remaining volume of the first groove after accommodating the first section 2211 is V1 = (V3 - V6 - V5) mm 3 . Of course, the above dimensions can also be obtained by using the method of three-dimensional scanning and modeling.

[0068] The charging socket of this application will be further specifically described below in combination with the specific embodiments and comparative examples in Table 2.

[0069] Table 2

[0070]

[0071]

[0072] As can be seen from Table 2, in the embodiments of the present application, by setting V2 / V1≥0.3, effective welding and sealing of the first sealing structure 12 and the second sealing structure 22 can be achieved. Additionally, in order to prevent poor appearance caused by overflow of materials during laser welding, it is preferably 0.3≤V2 / V1≤1. Among them, further preferably, 0.45≤V2≤1.5 and 0.75≤V1≤2.

[0073] Please refer to Figures 5-7 , in some embodiments, the first housing 1 includes a fourth limiting portion 13. The fourth limiting portion 13 is disposed on a side of the first body 11 facing the second body 21 and is connected to the first body 11. The fourth limiting portion 13 and the first body 11 enclose a second groove 14; the first housing 1 has a first through hole 15. Along the direction in which the first housing 1 and the second housing 2 are arranged, the first through hole 15 penetrates through the first body 11, and the first through hole 15 communicates with the second groove 14; the second housing 2 includes a fifth limiting portion 23. The fifth limiting portion 23 is disposed on a side of the second body 21 facing the first body 11 and is connected to the second body 21; the second housing 2 has a second through hole 24. Along the direction in which the first housing 1 and the second housing 2 are arranged, the second through hole 24 penetrates through the second body 21 and the fifth limiting portion 23. The fifth limiting portion 23 is disposed in the second groove 14, and the second through hole 24 communicates with the first through hole 15 through the second groove 14.

[0074] In the embodiments of the present application, by cooperatively arranging the fourth limiting portion 13 and the fifth limiting portion 23, positioning and limiting can be further achieved when the first housing 1 and the second housing 2 are butt - connected, ensuring accurate installation positions of the first housing 1 and the second housing 2. At the same time, the terminal blocks in the first through hole 15 and the second through hole 24 can be effectively protected, and the second section 2212 after heat melting can be effectively isolated, preventing the second section 2212 with a relatively large volume from overflowing into the first through hole 15 between the first limiting portion 122 and the second limiting portion 222.

[0075] It should be noted that the first sealing structure 12 further includes a welding table 124 which is disposed around the outside of the first body 11 and is hermetically connected to the first body 11; the third limiting portion 123 is disposed around the side of the welding table 124 away from the first body 11. At this time, the first limiting portion 122, the third limiting portion 123 and the welding table 124 enclose a first groove 121. Since the first housing 1 is a light-transmitting housing, the corresponding welding table 124 is also light-transmitting. During laser welding, the pressure plate presses on the welding table 124, and the pressure plate is a transparent plate body with a high light transmittance, which can be a glass plate. The high-energy laser beam passes through the pressure plate and enters the welding table 124, and then passes through the welding table 124 to reach the second section 2212. During the welding process, the pressure plate applies pressure to the welding table 124, the second section 2212 abuts against the welding table 124, and the high-energy laser beam acts on the second section 2212 to heat and melt the second section 2212. The supporting force of the melted second section 2212 decreases. When the pressure plate is gradually pressed down, the melted part of the second section 2212 is extruded to overflow to both sides between the first section 2211 and the inner wall of the first groove 121. Specifically, the melted second section 2212 overflows between the first section 2211 and the third limiting portion 123, and between the first section 2211 and the first limiting portion 122, so as to realize the bonding and sealing between the first section 2211 and the first limiting portion 122 and the third limiting portion 123 respectively. After the second section 2212 is continuously melted, the overall height of the first convex portion 221 gradually decreases. At this time, the distance between the first limiting portion 122 and the second limiting portion 222 also gradually decreases. The melting of the second section 2212 can stop after the pressure plate moves a preset distance. Further, it can also be that when the first limiting portion 122 and the second limiting portion 222 abut against each other, the pressure plate stops pressing down, and the laser beam is withdrawn. At this time, the overall volume of the assembled first housing 1 and second housing 2 can be smaller, occupying less space. At the same time, when the first limiting portion 122 and the second limiting portion 222 abut against each other, if the overall volume of the second section 2212 is relatively large, it can overflow between the first limiting portion 122 and the second limiting portion 222, further improving the sealing performance of the connection between the first housing 1 and the second housing 2.

[0076] In the embodiment of the present application, along the arrangement direction of the first housing 1 and the second housing 2, the size of the welding table 124 is d mm, satisfying: 1 ≤ d ≤ 2. Among them, the specific numerical range of d can be any value or the range between any two values among: 1, 1.11, 1.12, 1.13, 1.14, 1.15, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2. Among them, the smaller the value of d, the better the welding effect, and the larger the value of d, the better the strength of the welding table 124.

[0077] It should also be noted that the measurement of d can be carried out by measuring tools such as vernier calipers and micrometers. At the same time, optical measurement equipment can also be used for optical measurement, such as laser rangefinders, projectors, etc. The size is determined by measuring information such as the propagation time of light, the reflection or transmission of light.

[0078] Specifically, reference can be made to Table 3 for a further specific description of the embodiments of the present application.

[0079] Table 3

[0080]

[0081] As can be seen from Table 3, the welding table 124 of the embodiment of the present application can have better structural strength and welding effect within the range of 1 ≤ d ≤ 2, realizing the sealed connection between the first housing 1 and the second housing 2, and ensuring the strength of the charging socket housing.

[0082] Correspondingly, the embodiment of the present application also provides a vehicle, including a charging socket and a power battery as described in any one of the foregoing embodiments. The charging socket is connected to the power battery through a wire for charging the power battery.

[0083] It can be understood that the vehicle of the present application can charge the power battery through this charging socket. Among them, after the charging socket is arranged on the vehicle body, the airtightness of the socket can be ensured, and thus the safety of the power battery can be ensured.

[0084] Of course, the charging socket implemented in the present application can be applied to vehicles, specifically new energy vehicles, and can also be applied to devices such as electric motorcycles, electric bicycles, and backup power supplies.

[0085] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0086] The above has introduced in detail a charging socket and a vehicle provided by the embodiments of the present application, and specific examples are used to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A charging socket, characterized in that: include: A first housing (1) comprising a first body (11) and a first sealing structure (12), wherein the first sealing structure (12) is arranged around the first body (11), and the first sealing structure (12) is connected to the first body (11); A second housing (2), comprising a second body (21) and a second sealing structure (22), wherein the second sealing structure (22) is arranged around the second body (21), and the second sealing structure (22) is connected to the second body (21); Wherein, the first sealing structure (12) is sealedly connected to the second sealing structure (22).

2. The charging socket according to claim 1, characterized in that: The first sealing structure (12) has a first groove (121), and the opening of the first groove (121) faces the second sealing structure (22); The second sealing structure (22) comprises a first protrusion (221), wherein the first protrusion (221) is arranged on a side of the second body (21) facing the first sealing structure (12), and the first protrusion (221) is connected to the second body (21); the first protrusion (221) is arranged in the first groove (121) and is sealed and connected to the inner wall of the first groove (121).

3. The charging socket according to claim 2, characterized in that: The first groove (121) is an annular groove, and the first groove (121) is arranged around the side of the first sealing structure (12) facing the second sealing structure (22); the first protrusion (221) is an annular protrusion, and the first protrusion (221) is arranged around the side of the second body (21) facing the first sealing structure (12).

4. The charging socket according to claim 2, characterized in that: Part of the first protrusion (221) is heat-fused in the first groove (121) and is sealed with the inner wall of the first groove (121).

5. The charging socket according to claim 4, characterized in that: The first shell (1) is a light-transmitting shell.

6. The charging socket according to claim 4, characterized in that: The first sealing structure (12) comprises a first limiting portion (122), the first limiting portion (122) being arranged around a side of the first body (11) facing the second sealing structure (22), and the first limiting portion (122) being connected to the first body (11), and the first limiting portion (122) being used to enclose the first groove (121); the charging socket has a central axis (3), the first limiting portion (122) being arranged on a side of the first convex portion (221) close to the central axis (3), and the first limiting portion (122) being sealingly connected to the first convex portion (221); The second sealing structure (22) comprises a second limiting portion (222), the second limiting portion (222) being arranged around a side of the second body (21) facing the first sealing structure (12), the second limiting portion (222) being connected to the second body (21), the second limiting portion (222) being arranged on a side of the first protrusion (221) close to the central axis (3), the second limiting portion (222) being connected to the first protrusion (221); at least a portion of the first protrusion (221) protrudes from a side of the second limiting portion (222) facing the first sealing structure (12), and the second limiting portion (222) is connected to the first limiting portion (122) along the direction in which the first shell (1) and the second shell (2) are arranged.

7. The charging socket according to claim 6, characterized in that: The first sealing structure (12) further comprises a third limiting portion (123), wherein the third limiting portion (123) is disposed on a side of the first body (11) facing the second sealing structure (22), and the third limiting portion (123) is connected to the first body (11); the third limiting portion (123) is disposed on a side of the first limiting portion (122) away from the central axis (3), and the third limiting portion (123) and the first limiting portion (122) are spaced apart to enclose the first groove (121); the third limiting portion (123) is disposed on a side of the first convex portion (221) away from the first limiting portion (122), and the third limiting portion (123) is sealingly connected to the first convex portion (221).

8. The charging socket according to claim 7, characterized in that: Along the arrangement direction of the first shell (1) and the second shell (2), the size of the first groove (121) is a mm, and the size of the third limiting portion (123) is b mm, satisfying: a<b.

9. The charging socket according to claim 6, characterized in that: Along the arrangement direction of the first shell (1) and the second shell (2), the size of the first groove (121) is a mm, and the size of the first protrusion (221) protruding from the second limiting portion (222) is c mm, satisfying: a<c.

10. The charging socket according to claim 4, characterized in that: The first convex portion (221) comprises: A first section (2211) is connected to the second body (21) along the direction in which the first shell (1) and the second shell (2) are arranged; the first section (2211) is arranged in the first groove (121) and is sealed and connected to the inner wall of the first groove (121); a second section (2212), when the first convex portion (221) is not sealedly connected to the inner wall of the first groove (121), the second section (2212) is connected to the side of the first section (2211) away from the second body (21); when the first convex portion (221) is sealedly connected to the inner wall of the first groove (121), the second section (2212) is hot-melted into the first groove (121); The remaining volume of the first groove (121) after accommodating the first section (2211) is V1 mm 3 , the volume of the second section (2212) is V2 mm 3 , satisfying: V2 / V1≥0.

3.

11. The charging socket according to claim 1, characterized in that: The first shell (1) comprises a fourth limiting portion (13), the fourth limiting portion (13) being arranged on a side of the first body (11) facing the second body (21) and connected to the first body (11), the fourth limiting portion (13) and the first body (11) forming a second groove (14); the first shell (1) has a first through hole (15), the first through hole (15) passing through the first body (11) along the direction in which the first shell (1) and the second shell (2) are arranged, the first through hole (15) being connected to the second groove (14); The second shell (2) comprises a fifth limiting portion (23), which is arranged on the side of the second body (21) facing the first body (11) and connected to the second body (21); the second shell (2) has a second through hole (24), and along the direction in which the first shell (1) and the second shell (2) are arranged, the second through hole (24) penetrates the second body (21) and the fifth limiting portion (23), the fifth limiting portion (23) is arranged in the second groove (14), and the second through hole (24) is connected to the first through hole (15) through the second groove (14).

12. A car, characterized in that: It comprises a charging socket and a power battery as described in any one of claims 1 to 11, wherein the charging socket is connected to the power battery through a wire for charging the power battery.

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