A plug housing assembly, connector housing and connector

Abstract

The utility model relates to connector technical field especially relates to a plug shell, connector shell and connector, plug shell subassembly includes plug shell, shield, first locking structure and second locking structure, the plug shell is equipped with first insertion end face in one side along its insertion direction, be equipped with the insertion part of protruding in first insertion end face on first insertion end face, the shield is annular, the shield fixedly covers and sets in the outer peripheral surface of insertion part, first locking structure links with shield, second locking structure links with insertion part, first locking structure with second locking structure lock, to limit shield displacement along insertion direction of plug shell. Avoid the shield from the insertion part and separate when the plug shell and the socket are inserted, improved the connection stability between shield and insertion part.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a plug housing, a connector shell, and a connector. Background Technology

[0002] The charging device for new energy vehicles includes a socket installed on the vehicle body and a charging pile installed in the outside. The charging pile is equipped with a plug. The socket and the plug form a connector. By plugging the plug into the socket, the new energy vehicle can be charged.

[0003] An existing connector includes a socket and a plug. The socket includes a socket housing and socket terminals. One end of the socket terminals extends into the socket housing, and the end of the socket terminals extending into the plug housing has a socket hole. The other end of the socket terminals protrudes from the socket housing for connection to external electrical equipment. The side of the socket facing the plug has a insertion hole. The plug includes a plug housing and plug terminals. One end of the plug terminals extends into the insertion hole, and the other end of the socket terminals protrudes from the socket housing for connection to a vehicle. The end of the plug facing the socket has a insertion part. A shielding ring is provided on the outer peripheral surface of the insertion part. The shielding ring is an elastic element that holds the outer peripheral surface of the insertion part by its own elasticity. When the plug and socket are plugged in, the insertion part is inserted into the insertion hole, the shielding ring contacts the inner wall of the insertion hole, and the plug terminals and socket terminals are engaged to achieve a conductive connection between the socket and the plug.

[0004] However, in existing connectors, the shielding ring is an elastic element that relies on its own elasticity to hold the outer circumference of the plug. When the plug is inserted into or removed from the socket, the shielding ring is easy to fall off. Summary of the Invention

[0005] This utility model provides a plug housing assembly, a connector housing, and a connector, aiming to solve the problem that the shielding ring of existing connectors is prone to falling off when the plug is inserted into or removed from the socket.

[0006] To address the aforementioned problems, this utility model provides a plug housing assembly, including a plug housing, a shielding sheet, a first locking structure, and a second locking structure. The plug housing has a first insertion end face on one side along its insertion direction, and an insertion portion protruding from the first insertion end face is provided on the first insertion end face. The shielding sheet is annular and is fixedly sleeved on the outer peripheral surface of the insertion portion. The first locking structure is connected to the shielding sheet, and the second locking structure is connected to the insertion portion. The first locking structure and the second locking structure lock together to restrict the displacement of the shielding sheet along the insertion direction of the plug housing.

[0007] Optionally, the first locking structure includes a first spring piece, which extends along the length of the insertion portion. One end of the first spring piece near the first insertion end face is connected to the shielding sheet, and the other end of the first spring piece away from the first insertion end face is inclined toward the outer peripheral surface of the insertion portion.

[0008] The second locking structure includes a locking step disposed on the outer peripheral surface of the plug portion, and one end of the first spring piece away from the first plug end face abuts against one side of the locking step facing the first plug end face.

[0009] Optionally, a locking groove is provided on the outer peripheral surface of the plug-in portion, and the locking groove forms the locking step on one side of the groove wall facing the first plug-in end face.

[0010] Optionally, the second locking structure further includes a limiting step, which is disposed on the outer peripheral surface of the plug portion. The limiting step is located between the locking step and the first plug end face. The limiting step is arranged circumferentially around the plug portion, and one side of the limiting step facing the shielding sheet abuts against one side of the shielding sheet facing the first plug end face.

[0011] Optionally, the inner circumferential surface of the shielding sheet is provided with a plurality of protrusions, the plurality of protrusions are spaced apart, the protrusions protrude toward the outer circumferential surface of the plug-in portion, and one side of the protrusion toward the plug-in portion contacts the outer circumferential surface of the plug-in portion.

[0012] Optionally, the outer peripheral surface of the shielding sheet is provided with a plurality of second springs, one end of the second spring away from the first insertion end face is connected to the shielding sheet, and the other end of the second spring near the first insertion end face is away from the shielding sheet.

[0013] According to the plug housing assembly provided in this embodiment of the present utility model, the shielding sheet is sleeved on the plug-in portion, the first locking structure is connected to the shielding sheet, and the second shielding structure is connected to the plug-in portion. The first locking structure can lock and cooperate with the second locking structure, thereby limiting the shielding sheet and preventing the shielding sheet from detaching from the plug-in portion when the plug housing is plugged into the socket, thus improving the connection stability between the shielding sheet and the plug-in portion.

[0014] On the other hand, this utility model embodiment also provides a connector housing, including a socket housing and the above-mentioned plug housing assembly. The socket housing has a second insertion end face on the side facing the plug housing. The second insertion end face has a slot for the insertion part to be inserted. The first insertion end face and the second insertion end face are used to abut against each other when the plug housing and the socket housing are inserted. The end of the second spring piece away from the insertion part abuts against the inner peripheral surface of the slot.

[0015] Optionally, the first plug-in end face and the second plug-in end face are mutually parallel inclined surfaces.

[0016] Optionally, the plug portion has a plug post at one end facing the socket housing, and the slot has multiple plug holes on one side wall facing the plug housing. The multiple plug holes are spaced apart, and the plug post is plugged into one of the corresponding plug holes.

[0017] On the other hand, this utility model embodiment also provides a connector, including the connector housing described above. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the structure of a plug housing assembly provided in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the plug housing structure;

[0021] Figure 3 for Figure 1 A schematic diagram of the shielding sheet in the diagram;

[0022] Figure 4 This is a schematic diagram of the structure of a socket housing provided in an embodiment of the present invention.

[0023] Reference numerals in the accompanying drawings: 1. Plug housing; 2. First plug-in end face; 3. Sealing ring; 4. Plug-in part; 5. Shielding plate; 6. Second locking structure; 7. Locking groove; 8. Locking step; 9. Limiting step; 10. Clearance groove; 11. Plug-in post; 12. First locking structure; 13. First spring; 14. First receiving hole; 15. Second spring; 16. Second receiving hole; 17. Protrusion; 18. Socket housing; 19. Slot; 20. Second plug-in end face; 21. Plug-in hole; 22. Block. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] like Figures 1 to 3 As shown, this utility model embodiment provides a plug housing assembly, including a plug housing 1, a shielding sheet 5, a first locking structure 12, and a second locking structure 6. The plug housing 1 has a first insertion end face 2 on one side along its insertion direction. The first insertion end face 2 has an insertion portion 4 protruding from the first insertion end face 2. The shielding sheet 5 is annular and is fixedly sleeved on the outer peripheral surface of the insertion portion 4. The first locking structure 12 is connected to the shielding sheet 5, and the second locking structure 6 is connected to the insertion portion 4. The first locking structure 12 and the second locking structure 6 lock together to limit the displacement of the shielding sheet 5 along the insertion direction of the plug housing 1.

[0027] In this embodiment, the shielding sheet 5 is sleeved on the plug-in portion 4. The first locking structure 12 is connected to the shielding sheet 5, and the second shielding structure is connected to the plug-in portion 4. The first locking structure 12 can lock and cooperate with the second locking structure 6, thereby limiting the shielding sheet 5 and preventing the shielding sheet 5 from detaching from the plug-in portion 4 when the plug housing 1 is plugged into the socket, thus improving the connection stability between the shielding sheet 5 and the plug-in portion 4.

[0028] In this embodiment, the shielding sheet 5 is fixedly sleeved on the outer peripheral surface of the plug-in portion 4. This means that the shielding sheet 5 is stamped onto the plug-in portion 4 from the end of the plug-in portion 4 away from the first plug-in end face 2 by a stamping device, so that the inner peripheral surface of the shielding sheet 5 contacts the outer peripheral surface of the plug-in portion 4.

[0029] In one embodiment, the first locking structure 12 includes a first spring 13, which extends along the length of the insertion portion 4. One end of the first spring 13 near the first insertion end face 2 is connected to the shielding sheet 5, and the other end of the first spring 13 away from the first insertion end face 2 is inclined toward the outer peripheral surface of the insertion portion 4.

[0030] The second locking structure 6 includes a locking step 8 disposed on the outer peripheral surface of the insertion part 4, and the end of the first spring piece 13 away from the first insertion end face 2 abuts against the side of the locking step 8 facing the first insertion end face 2.

[0031] In this embodiment, the end of the first spring 13 away from the first insertion end face 2 is inclined toward the outer peripheral surface of the insertion part 4. This means that the distance between the end of the first spring 13 close to the first insertion end face 2 and the outer peripheral surface of the insertion part 4 is less than the distance between the first spring 13 away from the first insertion end face 2 and the outer peripheral surface of the insertion part 4.

[0032] In this embodiment, the shielding sheet 5 is provided with a first receiving hole 14 that extends through the shielding sheet 5 along the thickness direction of the shielding sheet 5. The end of the first spring piece 13 near the first insertion end face 2 is connected to the inner wall of the first receiving hole 14, so that the first spring piece 13 can be stamped by the shielding sheet 5, thereby reducing the size of the shielding sheet 5.

[0033] In this embodiment, the end of the first spring 13 away from the first insertion end face 2 abuts against the step, preventing the shielding sheet 5 from falling off in a direction away from the first insertion end face 2.

[0034] In one embodiment, a locking groove 7 is provided on the outer peripheral surface of the plug portion 4, and a locking step 8 is formed on the side wall of the locking groove 7 facing the first plug end face 2.

[0035] In this embodiment, a locking groove 7 is provided on the outer peripheral surface of the plug part 4, and a locking step 8 is formed on one side of the groove wall facing the first plug end face 2, which facilitates manufacturing.

[0036] In one embodiment, the second locking structure 6 further includes a limiting step 9, which is disposed on the outer peripheral surface of the insertion part 4. The limiting step 9 is located between the locking step 8 and the first insertion end face 2. The limiting step 9 is arranged around the circumference of the insertion part 4, and the side of the limiting step 9 facing the shielding sheet 5 abuts against the side of the shielding sheet 5 facing the first insertion end face 2.

[0037] In this embodiment, the limiting step 9 is arranged around the outer peripheral surface of the plug-in portion 4. The side of the shielding plate 5 facing the first plug-in end face 2 abuts against the step surface of the limiting step 9 facing away from the first plug-in end face 2, so as to prevent the shielding plate 5 from sliding towards the first plug-in end face 2, thereby limiting the shielding plate 5 in the plug-in direction of the socket housing 18.

[0038] In one embodiment, the inner peripheral surface of the shielding sheet 5 is provided with a plurality of protrusions 17, the plurality of protrusions 17 are spaced apart, the protrusions 17 protrude toward the outer peripheral surface of the insertion part 4, and one side of the protrusions 17 toward the insertion part 4 contacts the outer peripheral surface of the insertion part 4.

[0039] In this embodiment, the protrusion 17 protrudes towards the outer peripheral surface of the insertion part 4, and one side of the protrusion 17 facing the insertion part 4 contacts the outer peripheral surface of the insertion part 4, which can reduce the friction between the shielding sheet 5 and the outer peripheral surface of the insertion part 4 during stamping, and facilitate the installation of the shielding sheet 5.

[0040] In one embodiment, a plurality of second springs 15 are provided on the outer peripheral surface of the shielding sheet 5. The end of the second spring 15 away from the first insertion end face 2 is connected to the shielding sheet 5, and the end of the second spring 15 close to the first insertion end face 2 is away from the shielding sheet 5.

[0041] In this embodiment, the end of the second spring 15 away from the first plug-in end face 2 is connected to the shielding plate 5. The end of the second spring 15 near the first plug-in end face 2 away from the shielding plate 5 means that the distance between the end of the second spring 15 near the first plug-in end face 2 and the outer peripheral surface of the plug-in portion 4 is greater than the distance between the end of the second spring 15 away from the first plug-in end face 2 and the outer peripheral surface of the plug-in portion 4.

[0042] In this embodiment, the shielding sheet 5 is provided with a second receiving hole 16 that extends through the shielding sheet 5 along the thickness direction of the shielding sheet 5. The end of the second spring piece 15 away from the first insertion end face 2 is connected to the inner wall of the second receiving hole 16, so that the second spring piece 15 can be stamped by the shielding sheet 5, thereby reducing the size of the shielding sheet 5.

[0043] In this embodiment, when the plug housing 1 and the socket housing 18 are plugged in, the side of the second spring piece 15 facing away from the outer peripheral surface of the plugging part 4 abuts against the socket housing 18, which helps to improve the plugging strength between the plug housing 1 and the socket housing 18.

[0044] In this embodiment, a relief groove 10 is provided on the outer peripheral surface of the plug part 4. The relief groove 10 extends along the plugging direction of the socket housing 18 and is directly opposite the second spring piece 15, thereby increasing the deformation space of the second spring piece 15.

[0045] 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.

[0046] According to the plug housing assembly provided in this embodiment of the present utility model, the shielding plate 5 is sleeved on the plug-in portion 4, the first locking structure 12 is connected to the shielding plate 5, and the second shielding structure is connected to the plug-in portion 4. The first locking structure 12 can lock and cooperate with the second locking structure 6, thereby limiting the shielding plate 5 and preventing the shielding plate 5 from detaching from the plug-in portion 4 when the plug housing 1 is plugged into the socket, thus improving the connection stability between the shielding plate 5 and the plug-in portion 4.

[0047] In addition, one embodiment of this utility model also provides a connector housing, including as follows: Figure 4The socket housing 18 shown and the plug housing assembly described above have a second insertion end face 20 on the side of the socket housing 1 facing the plug housing 1. The second insertion end face 20 has a slot 19 for the insertion part 4 to be inserted. The first insertion end face 2 and the second insertion end face 20 are used to abut against each other when the plug housing 1 and the socket housing 18 are inserted. The end of the second spring piece 15 away from the insertion part 4 abuts against the inner circumferential surface of the slot 19.

[0048] In one embodiment, the first insertion end face 2 and the second insertion end face 20 are mutually parallel inclined surfaces.

[0049] In this embodiment, the first plug-in end face 2 and the second plug-in end face 20 are parallel inclined surfaces. After the plug housing 1 and the socket housing 18 are plugged in, the first plug-in end face 2 and the second plug-in end face 20 come into contact. The first plug-in end face 2 and the second plug-in end face 20 form mutual support in the plug-in direction perpendicular to the plug housing 1, thereby improving the ability of the plug housing 1 and the socket housing 18 to withstand shear forces.

[0050] In one embodiment, the plug portion 4 is provided with a plug post 11 at one end facing the socket housing 18, and the slot 19 is provided with a plurality of plug holes 21 on the side wall facing the plug housing 1. The plurality of plug holes 21 are spaced apart, and the plug post 11 is plugged into and engaged with a corresponding plug hole 21.

[0051] In this embodiment, the plug post 11 can only be plugged into one corresponding plug hole 21 on the socket housing 18, and the remaining plug holes 21 are filled with plugs 22 to prevent the plug housing 1 from being plugged into the socket by mistake, thus achieving foolproofing between the plug housing 1 and the socket housing 18.

[0052] In one embodiment, a sealing ring 3 is provided on the first plug end face 2 to improve the sealing between the plug housing 1 and the socket housing 18.

[0053] In addition, one embodiment of the present invention also provides a connector, including the connector housing described above.

[0054] The above-described 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 plug housing assembly, characterized in that, The device includes a plug housing (1), a shield (5), a first locking structure (12), and a second locking structure (6). The plug housing (1) has a first plug end face (2) on one side along its plugging direction. The first plug end face (2) has a plug portion (4) protruding from the first plug end face (2). The shield (5) is annular and is fixedly sleeved on the outer circumferential surface of the plug portion (4). The first locking structure (12) is connected to the shield (5), and the second locking structure (6) is connected to the plug portion (4). The first locking structure (12) and the second locking structure (6) lock each other to restrict the shield (5) from moving along the plugging direction of the plug housing (1).

2. The plug housing assembly according to claim 1, characterized in that, The first locking structure (12) includes a first spring (13), which extends along the length of the plug-in portion (4). The end of the first spring (13) near the first plug-in end face (2) is connected to the shield (5), and the end of the first spring (13) away from the first plug-in end face (2) is inclined toward the outer peripheral surface of the plug-in portion (4). The second locking structure (6) includes a locking step (8) disposed on the outer peripheral surface of the plug (4), and the end of the first spring (13) away from the first plug end face (2) abuts against the side of the locking step (8) facing the first plug end face (2).

3. The plug housing assembly according to claim 2, characterized in that, The outer peripheral surface of the plug-in part (4) is provided with a locking groove (7), and the locking groove (7) forms the locking step (8) on one side of the groove wall facing the first plug-in end face (2).

4. The plug housing assembly according to claim 2, characterized in that, The second locking structure (6) further includes a limiting step (9), which is disposed on the outer peripheral surface of the plug-in part (4). The limiting step (9) is located between the locking step (8) and the first plug-in end face (2). The limiting step (9) is disposed around the circumference of the plug-in part (4). The side of the limiting step (9) facing the shielding plate (5) abuts against the side of the shielding plate (5) facing the first plug-in end face (2).

5. The plug housing assembly according to claim 1, characterized in that, The shielding sheet (5) has a plurality of protrusions (17) on its inner circumferential surface. The plurality of protrusions (17) are spaced apart. The protrusions (17) protrude toward the outer circumferential surface of the plug-in part (4). One side of the protrusion (17) facing the plug-in part (4) contacts the outer circumferential surface of the plug-in part (4).

6. The plug housing assembly according to claim 1, characterized in that, The outer peripheral surface of the shielding sheet (5) is provided with a plurality of second springs (15). The end of the second spring (15) away from the first plug-in end face (2) is connected to the shielding sheet (5), and the end of the second spring (15) close to the first plug-in end face (2) is away from the shielding sheet (5).

7. A connector housing, characterized in that, The assembly includes a socket housing (18) and a plug housing assembly as described in any one of claims 1 to 6. The socket housing (18) has a second insertion end face (20) on the side facing the plug housing (1). The second insertion end face (20) has a slot (19) for the insertion part (4) to be inserted into. The first insertion end face (2) and the second insertion end face (20) are used to abut against each other when the plug housing (1) and the socket housing (18) are inserted.

8. The connector housing according to claim 7, characterized in that, The first plug-in end face (2) and the second plug-in end face (20) are parallel inclined surfaces.

9. The connector housing according to claim 8, characterized in that, The plug part (4) has a plug post (11) at one end facing the socket housing (18), and the slot (19) has a plurality of plug holes (21) on one side of the slot wall facing the plug housing (1). The plurality of plug holes (21) are spaced apart, and the plug post (11) is plugged into one of the corresponding plug holes (21).

10. A connector, characterized in that, Includes the connector housing as described in any one of claims 7 to 9.

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