CHARGING
The charging socket design with a socket body and adapter connector facilitates easy maintenance by allowing the adapter connector to be removed for repairs or replacements, addressing the high maintenance costs and complexity of existing designs.
Patent Information
- Application Number
- FR2022000413
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-01-20
- Filing Date
- 2022-01-18
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2042-01-18
AI Technical Summary
Existing charging sockets have a high maintenance cost due to the difficulty in disassembling and assembling the connection terminal and power cord, making repairs and replacements cumbersome.
A charging socket design featuring a socket body with a charging end, a conversion end, and a terminal receiving cavity, where the conversion end has a mating installation groove for an adapter connector, allowing for plug-in connections and easy removal for maintenance.
This design simplifies the disassembly and assembly process, reduces maintenance costs, and improves working efficiency by allowing only the adapter connector to be removed for repairs or replacements of the charging terminal.
Smart Images

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Abstract
Description
Title of the invention: CHARGING SOCKET Technical field
[0001] The present invention relates to the field of charger technologies, and more particularly relates to a charging socket. BACKGROUND OF THE INVENTION
[0002] With the increasing pressure on energy and the environment around the world, the concept of energy and environmental protection has been integrated into various fields. For the automobile industry, compared with traditional fuel engine vehicles and gas engine vehicles, electric vehicles using a power battery as a power source have gradually entered a wide range of practices due to their cleanliness and environmental protection characteristics. With the gradual increase in the number of electric vehicles, it is necessary to charge the battery frequently when using the electric vehicle. The electric vehicle is equipped with a charging socket connected to an internal battery, so that it is convenient for a user to plug an external power plug into the charging socket to charge the battery inside the vehicle.In the prior art, a power cord of the charging socket is directly riveted to a connection terminal, whereby the power cord and the connection terminal cannot be disassembled, and the disassembly and assembly of the charging socket are difficult and the maintenance cost is high when the charging socket is used repeatedly or accidentally damaged, and the connection terminal of the charging socket then needs to be repaired and replaced. Summary of the invention
[0003] An object of the present application is to provide a charging socket, in order to solve the technical problems in the state of the art relating to the difficulty of disassembly and assembly of the charging socket and the high maintenance cost because the connection terminal and the power cord cannot be disassembled when the connection terminal in the charging socket needs to be repaired and replaced.
[0004] In order to achieve the above object, a technical solution adopted by the present application is a charging socket comprising a socket body, wherein the socket body is provided with a charging end configured for connection to a charging connector, a conversion end configured for connection to a battery pack, and a terminal receiving cavity communicating with and located between the charging end and the conversion end, wherein the conversion end is provided with a mating installation groove configured for mounting an adapter connector and configured for a plug-in connection with the adapter connector.
[0005] In one embodiment, the socket body is provided with a position limiting component positioned in the mating installation groove and configured to limit movement of the adapter connector in the mating installation groove.
[0006] In one embodiment, the position limiting component comprises a first position limiting structure arranged protrudingly at the socket body and disposed on a lower surface of the mating installation groove, and a peripheral side wall of the adapter connector extends toward a direction of the socket body and encloses a second position limiting structure arranged protrudingly at a lower surface of the adapter connector to form a position limiting area configured for insertion of the first position limiting structure.
[0007] In one embodiment, a sealing ring is provided in the position limiting area, and the sealing ring is arranged between the first position limiting structure and the second position limiting structure.
[0008] In one embodiment, the charging socket further comprises a charging terminal, the charging terminal is arranged in the terminal receiving cavity of the socket body, one end of the charging terminal is connected to a mating terminal of the charging connector, and the other end of the charging terminal is connected to the adapter connector.
[0009] In one embodiment, the charging socket further comprises the adapter connector removably connected to the socket body, and the adapter connector is pluggably connected to the socket body.
[0010] In one embodiment, the adapter connector comprises an adapter housing and a conversion terminal arranged on the adapter housing, one end of the conversion terminal is connected to the charging terminal, and the other end of the conversion terminal is electrically connected to the battery pack.
[0011] In one embodiment, a bottom surface of the adapter housing is provided with a first drill hole configured for the charging terminal to pass through and for pluggable connection with the conversion terminal in an axial direction, and a shape of the first drill hole is matched to a shape of a cross-section of the conversion terminal.
[0012] In one embodiment, a top surface of the adapter housing is provided with a second drill hole configured for the conversion terminal to pass through and for connection to the battery pack.
[0013] In one embodiment, the charging receptacle further comprises an engagement assembly configured for removable connection of the receptacle body with the adapter connector, and the engagement assembly comprises an engagement frame arranged on a sidewall of the adapter housing and a locking member inserted onto the engagement frame.
[0014] In one embodiment, the socket body is provided with a reserved groove configured for insertion of the engagement frame, the reserved groove is arranged in communication with the mating installation groove, and the locking member is pluggably arranged in the reserved groove and is mutually engaged with a first engagement projection arranged protrudingly on a surface of the adapter housing.
[0015] In one embodiment, a positioning projection is provided on the engagement frame, and the locking member comprises a holding seat configured to immobilize the positioning projection; the holding seat comprises a first holding arm and a second holding arm arranged spaced from the first holding arm, and a holding area configured for insertion of the positioning projection is formed between the first holding arm and the second holding arm.
[0016] In one embodiment, the locking member further comprises a first hook fixedly connected to the first holding arm, and the first hook and the first engagement projection are engaged with each other.
[0017] In one embodiment, the engagement frame is provided with a plurality of position limiting guide rails configured to limit a movement direction of the locking member, the plurality of position limiting guide rails are arranged parallel to each other, and a surface of the first holding arm is hollowed and formed with a position limiting groove matched to the position limiting guide rails.
[0018] In one embodiment, the engagement frame is provided with a second engagement projection positioned between two adjacent position limiting guide rails and configured to limit a displacement of the locking member, and the surface of the first holding arm is formed as a projection with a second hook in snap-fit connection with the second engagement projection.
[0019] The beneficial effects of the charging socket provided by the present application lie in the fact that: compared to the prior art, the charging socket of the present application comprises a socket body, the socket body is provided with a charging end configured for externally connecting to a charging connector, a conversion end configured for connecting to a battery pack, and a terminal receiving cavity communicating with and located between the charging end and the conversion end, and the conversion end of the plug body is provided with a mating installation groove configured for mounting an adapter connector and configured to be a plug-in connection with the adapter connector;by adding the adapter connector configured for a connection of the battery pack to the charging socket, the plug-in connection of the socket body with the adapter connector via the matching installation groove, and by using the external connection of the charging end of the charging socket with the charging connector, and the connection of the adapter connector (which is plug-in connected to the socket body) with the battery pack, only the adapter connector needs to be removed from the matching installation groove provided on the socket body when the charging terminal mounted in the terminal receiving cavity needs to be repaired or replaced, so that a removal of the connection between the charging terminal and the battery pack is achieved, which effectively reduces the difficulty of disassembly and assembly. Therefore, this method is simple, improves the working efficiency and reduces the maintenance cost. ; DESCRIPTION OF DRAWINGS
[0020] In order to illustrate more clearly the technical solutions in the embodiments of the present application, the drawings to be used in the description of the embodiments or the prior art will be briefly introduced below. Of course, the drawings in the following description are only a few embodiments of the present application, and other drawings can also be obtained by those skilled in the art from these drawings without creative effort.
[0021] [Fig. 1] is a stereoscopic structural diagram of the charging socket provided by an embodiment of the present application.
[0022] [Fig.2] is a cross-sectional structural diagram of the charging socket provided by an embodiment of the present application.
[0023] [Fig.3] is an exploded structural diagram of the charging socket provided by an embodiment of the present application.
[0024] [Fig.4] is a stereoscopic structural diagram of an adapter connector of the charging socket provided by an embodiment of the present application.
[0025] [Fig.5] is a cross-sectional structural diagram of the adapter connector of the charging socket provided by an embodiment of the present application.
[0026] [Fig.6] is a first stereoscopic structure diagram of a charging socket adapter housing provided by an embodiment of the present application.
[0027] [Fig.7] is a second stereoscopic structural diagram of the charging socket adapter housing provided by an embodiment of the present application.
[0028] [Fig.8] is a diagram of the cross-sectional structure of the adapter housing of the adapter connector provided by an embodiment of the present application.
[0029] [Fig.9] is a stereoscopic structural diagram of a locking element of an immobilization assembly provided by an embodiment of the present application.
[0030] Among them, the numerical references on the drawings are as follows: 1 - charging socket; 2 - socket body; 21 - load end; 22 - conversion end; 221 - matching installation groove; 222 - reserved groove; 223 - first position limiting structure; 23 - terminal receiving cavity; 24 - charging terminal; 3 - adapter connector; 31 - adapter housing; 311 - second position limiting structure; 312 - position limitation zone; 3121 - sealing ring; 313 - first drill hole; 314 - second drill hole; 315 - first engagement projection; 32 - conversion terminal; 4 - engagement assembly; 41 - engagement frame; 411 - positioning projection; 412 - position limiting guide rail; 413 - second engagement projection; 42 - locking element; 421 - holding seat; 4211 - first holding arm; 42111 - position limiting groove; 42112 - second hook; 4212 - second holding arm; 422 - first hook. DETAILED IMPLEMENTATION METHODS
[0031] In order to make the technical problems to be solved, the technical solutions and the beneficial effects of the present application more understandable, the present application is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.
[0032] It should be noted that when an element is indicated as being "attached" or "disposed on" another element, that element may be directly on the other element or indirectly on the other element; when an element is indicated as being "connected to" another element, that element may be connected directly to the other element or connected indirectly to the other element.
[0033] It is to be understood that orientations or positional relationships indicated by terms such as "length", "width", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on orientations or positional relationships as shown in the drawings, which are intended only to facilitate the description of the present application and the simplification of the description, rather than to indicate or imply that an indicated device or element must have a specific orientation or be constructed and used in a specific orientation. Therefore, the orientations or positional relationships cannot be understood as a limitation of the present application.
[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as an indication or implication of relative importance or an implicit indication of the number of a technical feature indicated. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality of" means two or more, unless explicitly and specifically defined otherwise.
[0035] Referring to Figures 1 to 3 taken together, the charging socket 1 provided in this embodiment comprises a socket body 2. The socket body 2 is provided with a charging end 21 configured for external connection to a charging connector, a conversion end 22 configured for connection to a battery pack, and a terminal receiving cavity 23 communicating with and located between the charging end 21 and the conversion end 22. The conversion end 22 of the socket body 2 is provided with a mating installation groove 221 configured for mounting an adapter connector 3 and configured to be in pluggable connection with the adapter connector 3. By adding the connector adapter 3 configured to connect the battery pack to the charging socket 1, the plug-in connection of the socket body 2 with the adapter connector 3 via the matching installation groove 221, and by utilizing the external connection of the charging end 21 of the charging socket 1 with the charging connector, and the connection of the adapter connector 3 (which is pluggably connected to the socket body 2) with the battery pack, only the adapter connector 3 needs to be removed from the matching installation groove 221 provided on the socket body 2 when a charging terminal 24 mounted in the terminal receiving cavity 23 is to be repaired or replaced. By thus achieving the removal of the connection between the charging terminal 24 and the battery pack, this effectively reduces the difficulty of disassembly and assembly. Therefore, the process is simple, improves work efficiency, and reduces maintenance cost.
[0036] Referring to Figures 1 to 2 taken together, in a specific implementation of the charging socket 1 provided in this embodiment, the charging socket 1 further comprises a charging terminal 24 arranged in the terminal receiving cavity 23 of the socket body 2. One end of the charging terminal 24 is connected to a mating terminal of the charging connector, and the other end of the charging terminal 24 is connected to the adapter connector 3. Through the pluggable connection of the charging terminal 24 to the mating terminal of the charging connector, electrical power is supplied to the battery pack electrically connected to the charging socket 1, thereby realizing electrical power transmission. The charging socket 1 further comprises an adapter connector 3 which is removably connected to the socket body 2, and the adapter connector 3 is pluggably connected to the socket body 2.When it is necessary to repair or replace the charging terminal 24 mounted in the terminal receiving cavity 23, only the adapter connector 3 needs to be removed from the matching installation groove 221 provided on the plug body 2, thereby achieving the removal of the connection between the charging terminal 24 and the battery pack, effectively reducing the difficulty of disassembly and assembly. Therefore, the process is simple, improving work efficiency and reducing maintenance costs.
[0037] Referring to Figures 2 to 4 taken together, in this embodiment, the adapter connector 3 of the charging socket 1 comprises an adapter housing 31 which is pluggably connected to the socket body 2 and a conversion terminal 32 which is provided on the adapter housing 31. One end of the conversion terminal 32 is pluggably connected to the charging terminal 24, and the other end of the conversion terminal 3 is electrically connected to the battery pack, and the power transmitted by the charging connector is transmitted to the battery pack. battery via conversion terminal 32 to realize power transmission.
[0038] Referring to Figures 4 to 7 taken together, in this embodiment, a lower surface of the adapter housing 31 is provided with a first drill hole 313 through which the charging terminal 24 passes and is pluggably connected to the conversion terminal 32 in an axial direction. One end of the charging terminal 24 passes through the first drill hole 313 and is pluggably connected to the conversion terminal 32 in the axial direction. Optionally, a shape of the first drill hole 313 is matched to a shape of a cross-section of the conversion terminal 32, which provides a position-limiting function during the process of pluggably connecting the charging terminal 24 with the conversion terminal 32, thereby facilitating assembly.Optionally, an upper surface of the adapter housing 31 is provided with a second drill hole 314 through which the conversion terminal 32 passes and is connected to the battery pack, and the end of the conversion terminal 32 passes through the second drill hole 314 and is electrically connected to the battery pack.
[0039] Referring to Figures 2, 7 and 8 taken together, in this embodiment, the socket body 2 of the charging socket 1 is provided with a position limiting component positioned in the mating installation groove 221 and configured to limit the displacement of the adapter connector 3 in the mating installation groove, such that the connection between the socket body 2 and the adapter connector 3 is more stable, and damage to the connection between the charging terminal 24 and the conversion terminal 32 and influence on the power transmission, due to the displacement of the adapter connector 3 relative to the socket body 2 in the mating installation groove 221, are avoided, thereby effectively improving the reliability of the charging socket 1. The specific structure of the position limiting structure is not limited herein.Optionally, the position limiting component comprises a first position limiting structure 223 arranged protrudingly at the socket body 2 and disposed on a bottom surface of the mating installation groove 221. A peripheral side wall of the adapter connector 3 extends toward a direction of the socket body 2, and surrounds a second position limiting structure 311 arranged protrudingly at a bottom surface of the adapter connector 3 to form a position limiting area 312 configured for insertion of the first position limiting structure 223. The first position limiting structure 223 is placed in the position limiting area 312 of the adapter connector 3, so that the adapter connector 3 is accurately engaged in a predetermined position of the socket body 2, facilitating . thus assembling and improving the reliability of the charging socket 1. Optionally, a sealing ring 3121 is provided in the position limiting area 312, and the sealing ring 3121 is provided between the first position limiting structure 223 and the second position limiting structure 311. On the one hand, this effectively improves the protective performance of the charging socket 1, through which water or dust, etc., is prevented from entering the adapter housing 31 or flowing into the terminal receiving cavity 23 of the socket body 2 via the first drill hole 313, and through which deterioration of the internal structures of the charging socket 1 is prevented, thereby improving the reliability of the product.On the one hand, a friction force between the first position limiting structure 223 and the second position limiting structure 311 can be increased, so that the connection between the socket body 2 and the adapter connector 3 is more stable.
[0040] Referring to [Fig.l], as a specific implementation of the charging socket 1 provided in this embodiment, the charging socket 1 further comprises fasteners configured for removably connecting the socket body 2 with the adapter connector 3, the socket body 2 is provided with a plurality of connection holes located at intervals on a circumferential side wall of the mating installation groove 221, the adapter housing 31 is provided with fastening holes corresponding to the connection holes, and the fasteners pass through the fastening holes and are threadedly connected to the connection holes. The specific structure of the fasteners is not limited herein.Optionally, the fasteners are screws, and the fasteners pass through the fixing holes on the adapter housing 31 and are threadedly connected to the connection holes on the socket body 2 to firmly mount the adapter connector 3 to the socket body 2.
[0041] Referring to Figures 1, 2 and 4 taken together, as another specific implementation of the charging socket 1 provided in this embodiment, the charging socket 1 further comprises an engagement assembly 4 configured to removably connect the socket body 2 with the adapter connector 3. The specific structure of the engagement assembly 4 is not limited herein. The engagement assembly 4 comprises an engagement frame 41 arranged on a side wall of the adapter housing 31 and a locking member 42 inserted on the engagement frame 4L. By inserting the locking member 42 on the engagement frame 41, the adapter connector 3 is securely fixed to the socket body 2.Optionally, the socket body 2 is provided with a reserved groove 222 in which the engagement frame 41 is arranged, the reserved groove 222 is arranged in communication with the mating installation groove 221, the locking member 42 is pluggably arranged in the reserved groove 222 and is mutually engaged. with a first engagement protrusion 315 protrudingly arranged on one surface of the adapter housing 31, and the adapter connector 3 is securely fixed in the mating installation groove 221 of the socket body 2 by the snap-fit connection between the locking member 42 and the first engagement protrusion 315.
[0042] Referring to Figures 4, 5 and 9 considered together, in this embodiment, the engagement frame 41 of the adapter connector 3 is provided with a positioning projection 411. The locking element 42 comprises a holding seat 421 configured to immobilize the positioning projection 411. The holding seat 421 comprises a first holding arm 4211 and a second holding arm 4212 spaced from the first holding arm 4211. A holding area, into which the positioning projection 411 is inserted, is provided between the first holding arm 4211 and the second holding arm 4212.The positioning projection 411 is fixed in the holding area formed by inserting the positioning projection 411 into the holding seat 421, and the locking member 42 is firmly and accurately mounted in a predetermined position on the holding frame 41, so that the stability of the connection between the adapter connector 3 and the socket body 2 is improved. Optionally, the locking member 42 further comprises a first hook 422 fixedly connected to the first holding arm 4211, the first hook 422 and the first engagement projection 315 are engaged with each other, and the adapter connector 3 is fixedly mounted in the mating installation groove 221 of the socket body 2 by the engagement connection between the first hook 422 of the locking member 42 and the first engagement projection 315.Optionally, the locking member 42 further comprises a pressing structure provided on the holding seat 421, and a surface of the pressing structure is provided with a non-slip portion. The non-slip portion provided on the surface of the pressing structure increases the friction force between the operator's hand and the locking member 42, so that the operation is more labor-saving, which is beneficial to the assembly and disassembly of the adapter connector 3 of the charging socket 1. The specific structure of the non-slip portion is not limited herein. Optionally, the non-slip portion is a non-slip protrusion protruding on the surface of the pressing structure, which has a simple structure and is easy to produce.
[0043] Referring to Figures 4, 6 and 9 taken together, in this embodiment, the holding frame 41 of the adapter connector 3 is provided with a plurality of position limiting guide rails 412 configured to limit a direction of movement of the locking member 42, and the plurality of position limiting guide rails 412 are arranged parallel to each other. A surface of the first holding arm 4211 of the locking member 42 is hollowed out and formed with a position limiting groove 42111 matched with the position limiting guide rails 412, and the position limiting function due to the mutual cooperation of the position limiting guide rails 412 and the position limiting groove 42111 makes the assembly of the locking member 42 more convenient and the installation direction more precise, so that the holding seat 421 of the locking member 42 can accurately hold the positioning protrusion 411 to firmly and accurately mount the locking member 42 in the predetermined position on the holding frame 41, thereby improving the stability of the connection between the adapter connector 3 and the socket body 2.Optionally, the holding frame 41 is provided with a second engagement protrusion 413 located between two adjacent position limiting guide rails 412 and configured to limit the displacement of the locking member 42. The surface of the first holding arm 4211 is protrudingly formed with a second hook 42112 configured for snap-fit connection with the second engagement protrusion 413, and the snap-fit connection between the second engagement protrusion 413 and the second hook 42112 further improves the stability of the connection between the locking member 42 and the engagement frame 41, such that the adapter connector 3 is firmly installed in the mating installation groove 221 of the socket body 2.
[0044] The foregoing description has described only preferred implementations of this embodiment, and is not intended to limit this embodiment. Any modifications, equivalent substitutions, and improvements made in the spirit and principle of this embodiment shall be included within the scope of protection of this embodiment.
Claims
Claims
1. A charging socket (1), characterized in that it comprises a socket body (2) and an adapter connector (3) removably connected to the socket body (2), wherein the socket body (2) is provided with a charging end (21) configured for connection to a charging connector, a conversion end (22) configured for connection to a battery pack, and a terminal receiving cavity (23) communicating with and located between the charging end (21) and the conversion end (22), wherein the conversion end (22) is provided with a mating installation groove (221) configured for mounting the adapter connector (3) and configured for pluggable connection with the adapter connector (3), and the adapter connector (3) comprises an adapter housing (31) and a conversion terminal (32) arranged on the adapter housing (31),a first end of the conversion terminal (32) is connected to the charging terminal (24), and the other end of the conversion terminal (32) is electrically connected to the battery pack, and said charging socket (1) further comprises an engagement assembly (4) configured for detachable connection of the socket body (2) with the adapter connector (3), and the engagement assembly (4) comprises an engagement frame (41) arranged on a side wall of the adapter housing (31) and a locking member (42) inserted on the engagement frame (41).,
2. The charging socket according to claim 1, characterized in that the socket body (2) is provided with a position limiting component positioned in the mating installation groove (221) and configured to limit a movement of the adapter connector (3) in the mating installation groove (221).
3. The charging socket according to claim 2, characterized in that the position limiting component comprises a first position limiting structure (223) arranged protrudingly at the socket body (2) and disposed on a lower surface of the mating installation groove (221), and a peripheral side wall of the adapter connector (3) extends toward a direction of the socket body (2) and encloses a second position limiting structure (223) therein. position limiting (311) arranged protrudingly at a lower surface of the adapter connector (3) to form a position limiting area (312) configured for insertion of the first position limiting structure (223).
4. The charging socket according to claim 3, characterized in that a sealing ring (3121) is provided in the position limiting area (223), and the sealing ring (3121) is arranged between the first position limiting structure (223) and the second position limiting structure (311).
5. The charging socket according to claim 1, characterized in that, said charging socket (1) further comprises a charging terminal (24), the charging terminal (24) is arranged in the terminal receiving cavity (23) of the socket body (2), one end of the charging terminal (24) is connected to a mating terminal of the charging connector, and the other end of the charging terminal (24) is connected to the adapter connector (3).
6. The charging socket according to claim 1, characterized in that a lower surface of the adapter housing (3) is provided with a first drill hole (313) configured for the charging terminal (24) to pass through and for pluggable connection with the conversion terminal (32) in an axial direction, and a shape of the first drill hole (313) is adapted to a shape of a cross-section of the conversion terminal (32).
7. The charging socket according to claim 1, characterized in that an upper surface of the adapter housing (3) is provided with a second drill hole (314) configured for the conversion terminal (32) to pass through and for connection to the battery pack.
8. The charging socket according to claim 1, characterized in that the socket body (2) is provided with a reserved groove (222) configured for insertion of the engagement frame (41), the reserved groove (222) is arranged in communication with the mating installation groove (221), and the locking member (42) is pluggably arranged in the reserved groove (222) and is mutually engaged with a first engagement projection (315) arranged projectingly on a surface of the adapter housing (31).
9. The charging socket according to claim 8, characterized in that a positioning projection (411) is provided on the engagement frame (41), and the locking member (42) comprises a holding seat (421) configured to immobilize the positioning projection (411); the holding seat (421) comprises a first holding arm (4211) and a second holding arm (4212) arranged at a distance from the first holding arm, and a holding area configured for insertion of the positioning projection (411) is formed between the first holding arm (4211) and the second holding arm (4212).
10. The charging socket according to claim 9, characterized in that the locking member (42) further comprises a first hook (422) fixedly connected to the first holding arm (4211), and the first hook (422) and the first engagement projection (315) are engaged with each other.
11. The charging socket according to claim 9, characterized in that the engagement frame (41) is provided with a plurality of position limiting guide rails (412) configured to limit a movement direction of the locking member (42), the plurality of position limiting guide rails (412) are arranged parallel to each other, and a surface of the first holding arm (4211) is hollowed out and formed with a position limiting groove (42111) matched to the position limiting guide rails (412).
12. The charging socket according to claim 11, characterized in that the engagement frame (41) is provided with a second engagement projection (413) positioned between two adjacent position limiting guide rails (412) and configured to limit a displacement of the locking member (42), and the surface of the first holding arm (4211) is formed as a projection with a second hook (42112) in snap-fit connection with the second engagement projection (412).