Charging socket and vehicle charging device

Abstract

The utility model relates to the technical field of vehicle charging sockets, in particular to a charging socket and a vehicle charging device, comprising a terminal assembly, a PCB, a first connecting structure and a second connecting structure, the terminal assembly comprises a terminal main body, the terminal main body is provided with a connecting part and a plugging part which are arranged at an interval, the connecting part is provided with a plug-in part, the plug-in part is provided with a plug-in hole for a charging gun terminal of a charging gun to plug in, the first connecting structure is connected with the connecting part, the second connecting structure is connected with the PCB, and the first connecting structure is connected with the second connecting structure so as to connect the connecting part with the PCB. The first connecting structure and the second connecting structure are not easy to separate, so that the connecting strength between the PCB and the terminal main body is improved, the production of the PCB is facilitated, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle charging socket technology, and in particular to a charging socket and a vehicle charging device. Background Technology

[0002] The charging device for new energy vehicles includes a charging socket installed on the vehicle body and a charging pile installed in the outside. The charging pile is equipped with a charging gun, and the new energy vehicle is charged by plugging the charging gun into the charging socket.

[0003] An existing charging socket includes a housing, socket terminals, a PCB board, and socket pins. The PCB board and socket pins are located inside the housing. One end of the socket pins is connected to the PCB board. One end of the socket terminals extends into the housing and has a socket hole at the end of the terminals extending into the housing. The other end of the socket pins is inserted into the socket hole, and the other end of the socket terminals is exposed outside the housing for interlocking with the exposed charging gun terminals on the charging gun to achieve a conductive connection between the charging socket and the charging gun.

[0004] When the charging gun is plugged into and unplugged from the charging socket, the charging pile terminal will exert a radial force on the charging socket terminal. This radial force will be transmitted to the socket pins. However, in existing charging sockets, the connection strength between the socket pins and the PCB board is poor, making them prone to breakage and causing the charging socket to fail. Summary of the Invention

[0005] This utility model provides a charging socket and a vehicle charging device, aiming to solve the problem that the connection strength between the socket pins and the PCB board of existing charging sockets is poor, making them prone to breakage and causing the charging socket to fail.

[0006] On one hand, this utility model provides a charging socket, including a terminal assembly, a PCB board, a first connection structure and a second connection structure. The terminal assembly includes a terminal body, which has a connecting part and a plug-in part spaced apart. The plug-in part is provided with a plug-in hole for plugging in the charging gun terminal of the charging gun.

[0007] The first connecting structure is connected to the connecting part, and the second connecting structure is connected to the PCB board. The first connecting structure and the second connecting structure are connected to connect the connecting part to the PCB board.

[0008] Optionally, the second connection structure includes a mounting hole disposed on the PCB board, the connecting part passing through the mounting hole along a first direction, the first connection structure being located in the gap between the connecting part and the inner wall of the mounting hole, and the first connection structure being connected to the inner wall of the mounting hole.

[0009] Optionally, the first connecting structure includes a sleeve, the sleeve including a cylindrical body and a first elastic plate, the cylindrical body being sleeved on the connecting portion, and the inner wall of the cylindrical body contacting the connecting portion;

[0010] The first elastic plate has a fixed part and an elastic part connected together. The fixed part is connected to the cylinder body. Along the first direction, the distance between the elastic part and the connecting part gradually decreases. The side of the elastic part facing away from the connecting part contacts the inner wall of the mounting hole.

[0011] When the connecting part is inserted into the mounting hole in the first direction, the inner wall of the mounting hole drives the elastic part to approach the connecting part in the second direction.

[0012] Optionally, the cylinder body is provided with a first clearance hole, which penetrates the cylinder wall of the cylinder body along the second direction, and the fixing part is connected to the inner wall of the first clearance hole.

[0013] Optionally, the first elastic plate further includes a guide portion, which protrudes from the side of the elastic portion opposite to the connecting portion, extends along the first direction, and has a width smaller than the width of the elastic portion.

[0014] Optionally, the first elastic plate further includes a clamping part, the clamping part being at one end of the elastic part away from the fixing part, the side of the clamping part facing away from the connecting part contacting the wall of the mounting hole, the clamping part being parallel to the wall of the mounting hole, and the shape of the clamping part being consistent with the shape of the inner wall of the mounting hole.

[0015] Optionally, the plug-in portion includes a plurality of elastic clamping plates arranged circumferentially along the plug-in portion, the plurality of elastic clamping plates forming the plug-in hole, and the plurality of elastic clamping plates being used to jointly clamp the charging gun terminal of the charging gun.

[0016] Optionally, the terminal assembly further includes a housing, which is fitted onto the plug portion and has a through hole communicating with the plug hole.

[0017] Optionally, the terminal assembly further includes a seal that is fitted onto the insertion portion.

[0018] According to the charging socket provided in this utility model embodiment, the first connecting structure provided on the connecting part of the terminal body is connected to the second connecting structure provided on the PCB board, thereby connecting the connecting board and the PCB board. Compared with the prior art, there is no need to set pins on the PCB board, the first connecting structure and the second connecting structure are not easy to separate, the connection strength between the PCB board and the terminal body is improved, and the production of the PCB board is also convenient, which helps to reduce production costs.

[0019] On the other hand, this utility model embodiment also provides a vehicle charging device, including a charging gun and the above-mentioned charging socket, wherein the charging gun has a charging gun terminal, and the charging gun terminal is plugged into the plug hole. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of a charging socket provided in an embodiment of the present invention (the housing is not shown, but it can also be understood as an assembly schematic diagram of the terminal assembly and PCB board provided in an embodiment of the present invention).

[0022] Figure 2 This is a schematic diagram of the structure of a terminal assembly provided in an embodiment of the present utility model;

[0023] Figure 3 for Figure 2 Schematic diagram of the main body of the middle terminal;

[0024] Figure 4 for Figure 2 Schematic diagram of the middle sleeve;

[0025] Figure 5 for Figure 2 A schematic diagram of the inner shell structure.

[0026] Reference numerals in the accompanying drawings: 1. PCB board; 2. Mounting hole; 3. Terminal assembly; 4. Terminal body; 41. Insertion part; 42. Elastic retaining plate; 43. Guide part; 44. Insertion hole; 45. Transition part; 46. Connecting part; 47. Receiving groove; 48. Locking hole; 5. Sleeve; 51. Sleeve body; 52. Sleeve cavity; 53. First clearance hole; 54. First elastic plate; 55. Fixing part; 56. Elastic part; 57. Locking part; 58. Guide part; 6. Outer shell; 61. Second clearance hole; 62. Second elastic plate; 63. Arc plate; 64. Through hole; 65. Locking hole; 66. Retaining plate. Detailed Implementation

[0027] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] One embodiment of this utility model provides a charging socket, including a terminal assembly 3, a PCB board 1, a first connection structure, and a second connection structure, as follows: Figures 1 to 5 As shown, the terminal assembly 3 includes a terminal body 4, which has a connecting portion 46 and a plug-in portion 41 spaced apart. The plug-in portion 41 is provided with a plug-in hole 44 for plugging in the charging gun terminal of the charging gun.

[0030] The first connecting structure is connected to the connecting part 46, and the second connecting structure is connected to the PCB board 1. The first connecting structure and the second connecting structure are connected to connect the connecting part 46 to the PCB board 1.

[0031] In this embodiment, the charging socket also includes a housing. The connecting portion 46 of the terminal body 4 is installed inside the housing, and the plug-in portion 41 is exposed outside the housing through a through hole provided on the housing. The plug-in hole 44 is provided at one end of the plug-in portion 41 exposed outside the housing for the charging gun terminal to be plugged in. The first connecting structure and the second connecting structure are connected together to connect the connecting portion 46 to the PCB board 1. There is no need to provide pins on the PCB board 1, and the first connecting structure and the second connecting structure are less likely to detach, improving the connection strength between the PCB board 1 and the terminal body 4. This also facilitates the production of the PCB board 1 and helps reduce production costs.

[0032] In one embodiment, the second connection structure includes a mounting hole 2 disposed on the PCB board 1, a connecting part 46 passing through the mounting hole 2 along a first direction, and a first connection structure located in the gap between the connecting part 46 and the inner wall of the mounting hole 2, and the first connection structure being connected to the inner wall of the mounting hole 2.

[0033] In this embodiment, the first direction refers to the thickness direction of the PCB board 1. The mounting hole 2 penetrates the PCB board 1 along the first direction. The first connecting structure connects the inner wall of the mounting hole 2 with the insertion part 41 inserted into the mounting hole 2, thereby connecting the connecting part 46 with the mounting hole 2, preventing the insertion part 41 from detaching from the mounting hole 2, and improving the connection strength between the connecting part 46 and the mounting hole 2.

[0034] In one embodiment, the first connecting structure includes a sleeve 5, which includes a cylindrical body 51 and a first elastic plate 54. The cylindrical body 51 is sleeved on the connecting part 46, and the cylindrical body 51 has a cylindrical cavity 52. ​​The connecting part 46 is inserted into the cylindrical cavity 52, and the inner wall of the cylindrical body 51 is in contact with the connecting part 46. The inner wall of the cylindrical body 51 is the inner wall of the cylindrical cavity 52.

[0035] The first elastic plate 54 has a fixed part 55 and an elastic part 56 connected together. The fixed part 55 is connected to the cylinder body 51. Along the first direction, the distance between the elastic part 56 and the connecting part 46 gradually decreases. The side of the elastic part 56 facing away from the connecting part 46 contacts the inner wall of the mounting hole 2.

[0036] When the connecting part 46 is inserted into the mounting hole 2 in the first direction, the inner wall of the mounting hole 2 drives the elastic part 56 to approach the connecting part 46 in the second direction.

[0037] In this embodiment, multiple first elastic plates 54 are provided, and the multiple first elastic plates 54 are evenly distributed around the circumference of the cylindrical body 51. The distance between the upper end of the elastic part 56 and the connecting part 46 is greater than the distance between the lower end of the elastic part 56 and the connecting part 46. Under no external force, or when the sleeve 5 is not inserted into the mounting hole 2, the size of the space enclosed by all the first elastic plates 54 is larger than the inner diameter of the mounting hole 2. When the connecting part 46 is inserted into the mounting hole 2 from top to bottom, the inner wall of the mounting hole 2 forces the elastic part 56 to approach the connecting part 46 in a second direction. The second direction refers to the radial direction of the connecting part 46. The first elastic plates 54 undergo elastic deformation. Under the action of the elastic force of the first elastic plates 54 themselves, the side of the first elastic plates 54 facing away from the connecting part 46 abuts tightly against the inner wall of the mounting hole 2, thereby stably installing the connecting part 46 of the terminal body 4 in the mounting hole 2. The first elastic plate 54 has a simple structure and is easy to design.

[0038] In this example, the outer wall of the connecting part 46 is provided with a receiving groove 47, and the sleeve 5 is installed in the receiving groove 47. During manufacturing, the sleeve 5 is installed in the receiving groove 47 by a winding process.

[0039] In one embodiment, the cylindrical body 51 is provided with a first clearance hole 53, which penetrates the cylindrical wall of the cylindrical body 51 along a second direction, and the fixing part 55 is connected to the inner wall of the first clearance hole 53.

[0040] In this embodiment, the first clearance hole 53 extends through the cylinder body 51 along the thickness direction of the cylinder wall. The bottom end of the fixing part 55 is connected to the bottom side wall of the first clearance hole 53. The setting of the first clearance hole 53 increases the deformation stroke of the first elastic plate 54, so that the terminal body 4 can be adapted to PCB boards 1 with more mounting hole 2 sizes, thereby improving the applicability range.

[0041] In one embodiment, the first elastic plate 54 further includes a guide portion 58, which protrudes from the side of the elastic portion 56 opposite to the connecting portion 46. The guide portion 58 extends along a first direction, and the width of the guide portion 58 is smaller than the width of the elastic portion 56.

[0042] In this embodiment, the guide portion 58 protrudes from the side plate of the elastic portion 56 facing away from the connecting portion 46. The guide portion 58 extends along the length direction of the sleeve 5. The width of the guide portion 58 gradually decreases from top to bottom. When the sleeve 5 is just inserted into the mounting hole 2, it reduces the contact area between the first elastic plate 54 and the mounting hole 2, thereby reducing the friction between the elastic portion 56 and the mounting hole 2, making it easier for the sleeve 5 to be inserted.

[0043] In one embodiment, the first elastic plate 54 further includes a clamping part 57. The clamping part 57 is located away from the end of the elastic part 56 away from the fixing part 55. The side of the clamping part 57 facing away from the connecting part 46 contacts the wall of the mounting hole 2. The clamping part 57 is parallel to the wall of the mounting hole 2. The shape of the clamping part 57 is consistent with the shape of the inner wall of the mounting hole 2.

[0044] In this embodiment, the clamping part 57 is connected to the end of the elastic part 56 away from the fixed part 55. The clamping part 57 is arc-shaped and parallel to the inner wall of the mounting hole 2. After the sleeve 5 is inserted into the mounting hole 2, it can increase the contact area between the elastic part 56 and the mounting hole 2, thereby increasing the friction between the first elastic plate 54 and the mounting hole 2, improving the connection strength between the sleeve 5 and the mounting hole 2, and further improving the connection strength between the terminal body 4 and the mounting hole 2.

[0045] In one embodiment, the plug-in portion 41 includes a plurality of elastic clamping plates 42 arranged circumferentially spaced along the plug-in portion 41, the plurality of elastic clamping plates 42 forming a plug-in hole 44, and the plurality of elastic clamping plates 42 being used to jointly clamp the charging gun terminal of the charging gun.

[0046] In this embodiment, multiple elastic plates 42 are evenly distributed around the circumference of the insertion portion 41, and the space enclosed by each elastic plate 42 forms an insertion hole 44. Compared with a circular hole with a fixed inner diameter, the diameter of the insertion hole 44 enclosed by the elastic plates 42 can be adjusted according to the outer diameter of the charging gun terminal of the charging gun, thereby improving the applicability of the insertion hole 44.

[0047] The top of the elastic card plate 42 is provided with a guide portion 43. The distance between the upper part of the guide portion 43 and the charging gun terminal is smaller than the distance between the lower end of the guide portion 43 and the charging gun terminal. The guide portions 43 of multiple elastic cards 42 form a guide flare, which facilitates the insertion of the charging terminal into the plug hole 44.

[0048] In one embodiment, the terminal assembly 3 further includes a housing 6, which is sleeved on the plug portion 41 and has a through hole 64 communicating with the plug hole 44.

[0049] In this embodiment, a plurality of arc-shaped plates 63 are provided on the edge of the perforation 64. The plurality of arc-shaped plates 63 are evenly distributed around the periphery of the outer shell 6. The space enclosed by all the arc-shaped plates 63 forms the perforation 64, which facilitates the guidance of the charging gun terminal into the outer shell 6.

[0050] The outer shell 6 is also provided with a second clearance hole 61. A second elastic plate 62 is provided on the inner wall of the bottom hole of the second clearance hole 61. The second elastic plate 62 is positioned directly opposite the elastic locking plate 42. The distance between the upper end of the second elastic plate 62 and the insertion part 41 is smaller than the distance between the lower end of the second elastic plate 62 and the insertion part 41, so that it can be easily locked onto the outside of the elastic locking plate 42.

[0051] In one embodiment, the outer shell 6 is provided with a snap-fit ​​hole 65, and a snap-fit ​​plate 66 is provided on the edge of the snap-fit ​​hole 65. The snap-fit ​​plate 66 extends radially along the insertion part 41. The insertion part 41 is provided with a snap-fit ​​hole 48, which is directly opposite to the snap-fit ​​hole 65. The snap-fit ​​plate 66 is inserted into the snap-fit ​​hole 48 and abuts against the inner wall of the snap-fit ​​hole 48.

[0052] In one embodiment, the terminal assembly 3 further includes a seal that is fitted onto the insertion portion 41.

[0053] The terminal body 4 also includes a transition portion 45, which is located between the insertion portion 41 and the connecting portion 46. In this embodiment, the sealing element is a liquid silicone part molded by coating the transition portion 45. The outer wall surface of the liquid silicone part is provided with an annular boss. During installation, the liquid silicone part passes through the through hole provided on the housing of the charging socket. The outer wall surface of the annular boss contacts the inner wall surface of the through hole to achieve a seal between the terminal body 4 and the housing.

[0054] According to the embodiment of the present invention, the charging socket is connected to the PCB board 1 by a first connecting structure provided on the connecting part 46 of the terminal body 4 and a second connecting structure provided on the PCB board 1. Compared with the prior art, it is not necessary to provide pins on the PCB board 1. The first connecting structure and the second connecting structure are not easy to separate, which improves the connection strength between the PCB board 1 and the terminal body 4, facilitates the production of the PCB board 1, and helps to reduce production costs.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] On the other hand, one embodiment of the present invention also provides a vehicle charging device, including a charging gun and the above-mentioned charging socket, wherein the charging gun has a charging gun terminal and the charging gun terminal is plugged into the plug hole 44.

[0057] In other embodiments, the seal is a sealing ring fitted onto the transition portion 45.

[0058] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A charging socket, characterized by, The terminal assembly (3), the PCB board (1), the first connecting structure and the second connecting structure, the terminal assembly (3) includes a terminal main body (4), the terminal main body (4) has a connecting part (46) and a plug-in part (41) arranged at intervals, the plug-in part (41) is provided with a plug-in hole (44) for the charging gun terminal of the charging gun to plug in; The first connecting structure is connected with the connecting part (46), the second connecting structure is connected with the PCB board (1), and the first connecting structure is connected with the second connecting structure to connect the connecting part (46) with the PCB board (1).

2. The charging outlet of claim 1, wherein, The second connecting structure includes a mounting hole (2) arranged on the PCB board (1), the connecting part (46) is arranged in the mounting hole (2) along a first direction, the first connecting structure is arranged in the gap between the connecting part (46) and the inner wall of the mounting hole (2), and the first connecting structure is connected with the inner wall of the mounting hole (2).

3. The charging outlet of claim 2, wherein, The first connecting structure includes a sleeve (5), the sleeve (5) includes a sleeve body (51) and a first elastic plate (54), the sleeve body (51) is sleeved on the connecting part (46), and the inner wall of the sleeve body (51) is in contact with the connecting part (46); The first elastic plate (54) has a fixed part (55) and an elastic part (56) connected with each other, the fixed part (55) is connected with the sleeve body (51), the distance between the elastic part (56) and the connecting part (46) gradually decreases along the first direction, and the side surface of the elastic part (56) away from the connecting part (46) is in contact with the inner wall of the mounting hole (2); When the connecting part (46) is inserted into the mounting hole (2) along the first direction, the inner wall of the mounting hole (2) drives the elastic part (56) to move towards the connecting part (46) along a second direction.

4. The charging outlet of claim 3, wherein, The sleeve body (51) is provided with a first avoiding hole (53) penetrating through the sleeve wall of the sleeve body (51) along the second direction, and the fixed part (55) is connected with the inner wall of the first avoiding hole (53).

5. The charging outlet of claim 3, wherein, The first elastic plate (54) further includes a guide part (58), the guide part (58) is protruded from the side of the elastic part (56) away from the connecting part (46), the guide part (58) extends along the first direction, and the width of the guide part (58) is smaller than the width of the elastic part (56).

6. The charging outlet of claim 3, wherein, The first elastic plate (54) further includes a clamping part (57), the clamping part (57) is away from the fixed part (55) and one end of the elastic part (56), the side of the clamping part (57) away from the connecting part (46) is in contact with the hole wall of the mounting hole (2), the clamping part (57) is parallel to the hole wall of the mounting hole (2), and the shape of the clamping part (57) is consistent with the shape of the inner wall of the mounting hole (2).

7. The charging station of any one of claims 1 to 6, wherein, The plug-in part (41) comprises a plurality of elastic clamping plates (42) arranged along the circumference of the plug-in part (41), the plurality of elastic clamping plates (42) surround the plug-in hole (44), and the plurality of elastic clamping plates (42) are used for collectively clamping the charging gun terminal of the charging gun.

8. The charging outlet of claim 7, wherein, The terminal assembly (3) further comprises a shell (6) sleeved on the plug-in part (41), and the shell (6) is provided with a through hole (64) in communication with the plug-in hole (44).

9. The charging outlet of claim 7, wherein, The terminal assembly (3) further comprises a sealing member sleeved on the plug-in part (41).

10. A charging device of a vehicle, characterized by, The charging socket comprises a charging gun and the charging socket according to any one of claims 1 to 9, the charging gun is provided with a charging gun terminal, and the charging gun terminal is in plug-in cooperation with the plug-in hole (44).

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