Small-size secondary lock connector applied to vehicle-mounted charger controller

Abstract

The invention discloses a small-size secondary lock connector applied to a vehicle-mounted charger controller, and relates to the technical field of connectors, the small-size secondary lock connector comprises a socket assembly, a plug assembly and an auxiliary mounting piece, the socket assembly comprises a first shell and a plurality of first terminals arranged on the first shell, and the plug assembly comprises a second shell and a plurality of second terminals arranged on the second shell; the plurality of first terminals are distributed at intervals along a first direction; the plug assembly comprises a second shell and a plurality of second terminals arranged on the second shell, the second shell is matched with the first shell in a plugging manner, and the plurality of first terminals are matched with the plurality of second terminals in a one-to-one butt joint manner; the auxiliary mounting piece is arranged on the second shell, and the auxiliary mounting piece is used for being inserted into the first shell along with the second shell and is used for being matched with the second shell to form a first reinforcing part; when the secondary lock connector is of a thinner flat structure, the secondary lock connector can have enough structural strength, so that the service life and the use safety of the secondary lock connector are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a small-volume secondary lock connector used on a vehicle charger controller. Background Art

[0002] On the on-board charger controller, a connector is required to achieve the connection between the line end and the board end. In order to ensure its own strength of use, the existing automotive electrical connectors are difficult to achieve a flat and ultra-thin small size structure, especially when the connector has a flat structure and has multiple power terminals. Summary of the invention

[0003] The main purpose of the present invention is to propose a small-volume secondary lock connector for use on a vehicle charger controller, aiming to ensure the connector's own use strength while achieving a flat and ultra-thin structure.

[0004] To achieve the above object, the present invention proposes a small-volume secondary lock connector for use on a vehicle charger controller, comprising: The socket assembly comprises a first housing and a plurality of first terminals arranged in the first housing, wherein the plurality of first terminals are spaced apart and distributed along a first direction; A plug assembly comprises a second housing and a plurality of second terminals provided on the second housing, wherein the second housing is plug-fitted with the first housing, and the plurality of first terminals are mated with the plurality of second terminals one by one; and an auxiliary mounting member, provided on the second housing, the auxiliary mounting member being used to be plugged into the first housing along with the second housing, and being used to cooperate with the second housing to form a first reinforcement portion, the first reinforcement portion being used to enhance the structural strength of the plug assembly; The first reinforcement portion includes an arc-shaped protrusion and an arc-shaped groove. The auxiliary mounting member is provided with at least one arc-shaped groove on a side close to the first shell. The second shell is provided with at least one arc-shaped protrusion. The arc-shaped groove is plug-fitted with the arc-shaped protrusion.

[0005] In one embodiment, the first housing is provided with a slot, the second housing includes an inserting portion, the inserting portion is plugged and matched with the slot, a mounting portion is provided on a side of the inserting portion away from the slot, and the auxiliary mounting member is snap-fitted and mounted on the mounting portion; The auxiliary mounting part includes a mounting body and a reinforcing rib portion, wherein the mounting body is snap-fitted with the mounting portion, and the mounting body is used to be plugged and installed in the slot along with the plug-in portion, and the reinforcing rib portion is arranged on a side of the mounting body away from the plug-in portion.

[0006] In one embodiment, a plurality of first matching ribs are provided on one side of the installation body along the second direction, a plurality of second matching ribs are provided on one side of the plug-in portion along the second direction, a plurality of the second matching ribs are connected one by one with a plurality of the first matching ribs, an end of at least one of the second matching ribs close to the first matching rib is provided with the arc-shaped protrusion, and the first matching rib is provided with the arc-shaped groove; The first direction and the second direction are arranged crosswise.

[0007] In one embodiment, when the second housing is inserted into the first housing, at least one of the mounting body and the plug-in portion cooperates with the inner wall of the slot to form a second reinforcement portion, and the second reinforcement portion is used to enhance the structural strength of the socket assembly; The second reinforcement portion includes a first rib groove and a first rib portion, a plurality of first matching ribs are provided on one side of the installation body along the second direction, and a first sub-rib groove is formed between adjacent first matching ribs, and a plurality of second sub-rib grooves are provided on one side of the second shell along the second direction, and the plurality of first sub-rib grooves are connected to the plurality of second sub-rib grooves one by one to form a plurality of first rib grooves; A plurality of the first ribs are provided on an inner wall of one side of the slot along the second direction, the plurality of the first ribs are arranged at intervals along the first direction, and the plurality of the first rib grooves are plugged and matched with the plurality of the first ribs one by one, so as to enhance the structural strength of the first shell when the second shell is plugged into the slot; The first direction and the second direction are arranged crosswise.

[0008] In one embodiment, adjacent first ribs cooperate to form a first limiting groove, the first limiting groove having a first groove section and a second groove section, the first groove section being located between the second groove section and the inner wall of the slot, the first groove section being flared from the inner wall of the slot to the second groove section, and the second groove section being equidistantly arranged from the first groove section to the free end of the first rib.

[0009] In one embodiment, the second reinforcing portion further includes a second rib groove and a second rib portion, a plurality of the second rib portions are provided on the inner wall of the other side of the slot along the second direction, the plurality of the second rib portions are arranged at intervals along the first direction, a plurality of the second rib grooves are provided on the other side of the second shell along the second direction, and the plurality of the second rib portions are plugged in and matched with the plurality of the second rib grooves one by one, so as to enhance the structural strength of the first shell when the second shell is plugged into the slot; Adjacent second ribs cooperate to form a second limiting groove, and the second limiting groove is expanded from the inner wall of the slot to the free end of the second rib.

[0010] In one embodiment, the mounting portion includes two groups of snap fasteners, the two groups of snap fasteners are respectively arranged on both sides of the second shell along the first direction, the mounting body includes a base and two side portions respectively arranged on both sides of the base, each of the side portions is provided with a snap fastener, and the snap fastener is snap-fitted with the snap fastener; And / or, one side of the first shell in the thickness direction is used to connect to the circuit board; or, the side of the first shell inserted away from the second shell is used to connect to the circuit board.

[0011] In one embodiment, the first shell is provided with prefabricated grooves on both sides along the first direction, and a reinforcing sheet is provided in the prefabricated groove, and the reinforcing sheet is used to be fixed to the circuit board on which the first shell is installed; And / or, the second shell further includes a buckle portion, the buckle portion is provided on one side of the plug-in portion along the first direction, and the buckle portion is buckled and matched with an inner wall of one side of the slot along the first direction.

[0012] In one embodiment, the buckle portion includes a rib and a latching protrusion, the rib is elastically connected to the plug-in portion, a latching protrusion is provided on the side of the rib facing away from the plug-in portion, a snap-in slot for snapping with the latching protrusion is provided on the inner wall of the slot, a deformation space is provided between the rib and the plug-in portion, and the rib is used to move toward the deformation space under the action of an external force so that the latching protrusion is snap-fitted and separated from the snap-in slot.

[0013] In one embodiment, the second housing further comprises an end plate portion, the end plate portion is arranged on a side of the mounting portion away from the plug-in portion, the rib is elastically connected to the end plate portion, and the side of the rib facing the mounting portion is arranged at an obtuse angle to the end plate portion; And / or, a third matching rib is provided on one side of the second shell along the second direction, the third matching rib is connected to the rib, and a resisting rib is provided on the inner wall of the slot, and the resisting rib is limitedly matched with a side of the third matching rib away from the rib.

[0014] The technical solution of the present invention is to provide an auxiliary mounting piece on the plug assembly, and the auxiliary mounting piece cooperates with the second shell to form a first reinforcement portion, and the arc-shaped protrusion of the first reinforcement portion is plugged into and cooperated with the arc-shaped groove, so that the external force exerted on the second shell can be transmitted to the arc-shaped groove through the arc-shaped protrusion, and then transmitted to the auxiliary mounting piece. Since the arc-shaped protrusion abuts against the inner wall of the arc-shaped groove in multiple directions, the force can be shared at multiple angles through the arc-shaped groove, thereby enhancing the structural strength of the second shell, thereby enhancing the structural strength of the plug assembly, and then when the plug assembly is plugged and installed in the socket assembly, the overall structural strength of the secondary lock connector is improved. When multiple first terminals are spaced apart along the first direction so that the socket assembly and the plug assembly are flat, the structural strength of the secondary lock connector can be increased through the first reinforcement portion, so that the secondary lock connector can present a thinner flat structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 A schematic structural diagram of an embodiment of a secondary lock connector provided by the present invention; Figure 2 for Figure 1 Exploded diagram of the secondary lock connector; Figure 3 for Figure 2 A schematic diagram of the matching between the middle plug assembly and the auxiliary mounting parts; Figure 4 for Figure 2 A schematic diagram of the plug assembly at an angle; Figure 5 for Figure 2 Another angle diagram of the plug assembly; Figure 6 for Figure 2 An angled schematic diagram of the auxiliary mounting part; Figure 7 for Figure 2 Another angle diagram of the auxiliary mounting part; Figure 8 for Figure 2 Another angle diagram of the plug assembly; Fig. 9 for Figure 2 A schematic diagram of an angle of the first shell; Fig.10 for Figure 2A schematic diagram of the first shell from another angle; Fig.11 for Figure 2 A schematic diagram of the installation of the first housing; Fig.12 A schematic structural diagram of another embodiment of the secondary lock connector provided by the present invention; Fig.13 A schematic structural diagram of another embodiment of the secondary lock connector provided by the present invention; Fig.14 This is a structural schematic diagram of another embodiment of the secondary lock connector provided by the present invention.

[0017] Description of Figure Numbers: 100, secondary lock connector; 10, socket assembly; 11, first housing; 111, slot; 111a, second rib; 111b, first rib; 111c, second limiting groove; 111d, first limiting groove; 112, prefabricated groove; 113, guide groove; 114, blocking rib; 115, positioning column; 116, plug slot; 117, hidden slot; 118, bayonet; 12, first terminal; 13, reinforcing sheet; 20, plug assembly; 21, second housing; 21a, second rib groove; 21b, second sub-rib groove; 21c, second matching rib; 21d, arc protrusion; 21e, third matching rib; 21f, strip groove; 211, plug-in portion; 212, mounting portion; 2121, snap-fit ​​member; 2122, slot opening; 213, snap-fit ​​portion; 213a, rib; 213b, snap-fit; 213c, anti-slip protrusion; 214, end plate portion; 215, guide rib; 22, second terminal; 30, auxiliary mounting member; 30a, base; 30b, side portion; 31, first matching rib; 31a, first sub-rib groove; 311, arc-shaped groove; 32, snap-fit ​​member; 33, reinforcing rib portion; 331, pressing inclined surface; 34, abutting protrusion; 200. Circuit board; 201. Positioning hole.

[0018] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] On the on-board charger controller, a connector is required to achieve the connection between the line end and the board end. In order to ensure its own strength of use, the existing automotive electrical connectors are difficult to achieve a flat and ultra-thin small size structure, especially when the connector has a flat structure and has multiple power terminals.

[0023] The present invention proposes a small-volume secondary lock connector applied to a vehicle-mounted charger controller, aiming to ensure the connector's own use strength when realizing a flat ultra-thin structure.

[0024] See also Figures 1 to 14In one embodiment of the present invention, the secondary lock connector 100 includes a socket assembly 10, a plug assembly 20 and an auxiliary mounting member 30, wherein the socket assembly 10 includes a first housing 11 and a plurality of first terminals 12 disposed on the first housing 11, wherein the plurality of first terminals 12 are spaced apart along a first direction; the plug assembly 20 includes a second housing 21 and a plurality of second terminals 22 disposed on the second housing 21, wherein the second housing 21 is plugged into and matched with the first housing 11, wherein the plurality of first terminals 12 are docked with the plurality of second terminals 22 one by one; the auxiliary mounting member 30 is disposed In the second shell 21, the auxiliary mounting part 30 is used to be plugged into the first shell 11 along with the second shell 21, and is used to cooperate with the second shell 21 to form a first reinforcement portion, and the first reinforcement portion is used to enhance the structural strength of the plug assembly 20; the first reinforcement portion includes an arc-shaped protrusion 21d and an arc-shaped groove 311, and the auxiliary mounting part 30 is provided with at least one arc-shaped groove 311 on a side close to the first shell 11, and the second shell 21 is provided with at least one arc-shaped protrusion 21d, and the arc-shaped groove 311 is plugged and cooperated with the arc-shaped protrusion 21d.

[0025] In the present invention, the first housing 11 of the secondary lock connector 100 can be fixed to the circuit board 200, and the multiple first terminals 12 provided on the first housing 11 can be connected to the power connection end of the circuit board 200. The multiple first terminals 12 and the multiple second terminals 22 are matched one by one. When the second housing 21 is plugged and installed in the first housing 11, each first terminal 12 is plugged into the corresponding second terminal 22, so that the plug assembly 20 and the socket assembly 10 are electrically connected. Among them, the multiple first terminals 12 can be arranged at intervals along the thickness direction of the socket assembly 10, so that the socket assembly 10 is flat, and the multiple second terminals 22 can be arranged at intervals along the width direction of the plug assembly 20, so that the plug assembly 20 is flat, so that the secondary lock connector 100 is generally flat.

[0026] like Fig.10 , Fig.11As shown, when the first housing 11 is installed on the circuit board 200, a plurality of positioning posts 115 may be provided at the bottom of the first housing 11, and positioning holes 201 that are plugged and matched with the positioning posts 115 may be provided on the circuit board 200, so that the first housing 11 can be accurately positioned at the installation position specified by the circuit board 200, thereby facilitating the connection between the first terminal 12 and the circuit board 200. In addition, when the first terminal 12 is installed on the first housing 11, a plug-in slot 116 may be provided at one end of the first housing 11 away from the second housing 21, and the first terminal 12 is inserted into the slot 111 of the first housing 11 from the plug-in slot 116, and a hidden slot 117 may be provided on the side of the first housing 11 facing the circuit board 200, and the end of the first terminal 12 exposed to the first housing 11 may be provided in the hidden slot 117, and connected to the circuit board 200 from the hidden slot 117.

[0027] like Figure 1 , Fig.12 As shown, optionally, one side of the first shell 11 in the thickness direction is used to connect the circuit board 200; or, the side of the first shell 11 inserted away from the second shell 21 is used to connect the circuit board 200. In this way, when the socket assembly 10 is connected to the circuit board 200, one side of the socket assembly 10 in the thickness direction can be connected to the circuit board 200, so that the socket assembly 10 is installed on the circuit board 200 in a horizontal posture, or one side of the socket assembly 10 in the length direction (the side of the socket assembly 10 away from the plug assembly 20) is connected to the circuit board 200, so that the socket assembly 10 is installed on the circuit board 200 in a vertical posture, which is not limited here. In addition, the number of the first terminal 12 and the second terminal 22 can be set to four, six, eight, twelve, etc., which is not limited here. Specifically, when the number of the first terminal 12 and the second terminal 22 is set more, the secondary lock connector 100 presents a flatter state, and when the secondary lock connection is flatter, its structural strength is worse. Here, an auxiliary mounting member 30 is provided, and the auxiliary mounting member 30 is provided on the second shell 21 and cooperates with the second shell 21 to enhance the overall structural strength of the second shell 21, so as to enhance the structural strength of the plug assembly 20. Moreover, when the auxiliary mounting member 30 is plugged into the socket assembly 10 along with the second shell 21, the auxiliary mounting member 30 can cooperate with the first shell 11 to enhance the structural strength of the first shell 11, so as to enhance the structural strength of the socket assembly 10, thereby enhancing the overall structural strength of the secondary lock connector 100.

[0028] When the first reinforcement member is set as an arc-shaped protrusion 21d and an arc-shaped groove 311, the arc-shaped protrusion 21d is inserted and matched with the arc-shaped groove 311, and the arc-shaped protrusion 21d can abut against the inner wall of the arc-shaped groove 311. When the second shell 21 is subjected to force, it can be transmitted to the arc-shaped groove 311 through the arc-shaped protrusion 21d. Since the arc-shaped protrusion 21d abuts against the inner wall of the arc-shaped groove 311 in multiple directions, the force can be shared at multiple angles through the arc-shaped groove 311, and then the force can be shared through the auxiliary mounting member 30. When the strength of the middle part of the second shell 21 is relatively weak, the structural strength of the middle part of the second shell 21 is enhanced. In the present invention, the number of arc-shaped protrusions 21d can be set according to the width of the secondary lock connector 100, such as Fig.13 , Fig.14 As shown, when the secondary lock connector 100 is wider, so that it presents a flatter state (for example, the socket assembly 10 has twenty-four first terminals 12, and the plug assembly 20 has twenty-four second terminals 22), a plurality of arc-shaped protrusions 21d can be provided. In this way, by plugging and fitting a sufficient number of arc-shaped protrusions 21d with the arc-shaped grooves 311, when the socket assembly 10 is subjected to force over a large area, the structural strength of the middle portion of the plug assembly 20 is effectively increased to prevent the plug assembly 20 from deforming.

[0029] Of course, in other embodiments, when the auxiliary mounting part 30 enhances the structural strength of the second shell 21, one end of the auxiliary mounting part 30 may be abutted against the second shell 21, and when the second shell 21 is subjected to external force, the force can be transmitted to the auxiliary mounting part 30 through the abutting part with the auxiliary mounting part 30, and then the auxiliary mounting part 30 bears the force exerted on the second shell 21, and the auxiliary mounting part 30 shares the force on the second shell 21, thereby increasing the structural strength of the second shell 21. Alternatively, the first reinforcement portion may also be a plurality of interlocking plug-in structures, which are not specifically limited.

[0030] The technical solution of the present invention is to provide an auxiliary mounting member 30 on the plug assembly 20, and the auxiliary mounting member 30 cooperates with the second shell 21 to form a first reinforcement portion. The arc-shaped protrusion 21d of the first reinforcement portion is plugged into and matched with the arc-shaped groove 311, so that the external force exerted on the second shell 21 can be transmitted to the arc-shaped groove 311 through the arc-shaped protrusion 21d, and then transmitted to the auxiliary mounting member 30. Since the arc-shaped protrusion 21d abuts against the inner wall of the arc-shaped groove 311 in multiple directions, the force can be shared at multiple angles through the arc-shaped groove 311, thereby enhancing the structural strength of the second shell 21, thereby enhancing the structural strength of the plug assembly 20, and then when the plug assembly 20 is plugged and installed in the socket assembly 10, the overall structural strength of the secondary lock connector 100 is improved. When the multiple first terminals 12 are spaced apart along the first direction so that the socket assembly 10 and the plug assembly 20 are flat, the structural strength of the secondary lock connector 100 can be increased through the first reinforcement portion, so that the secondary lock connector 100 can present a thinner flat structure.

[0031] See also Figure 4 , Figure 6 , Fig. 9 As shown, in one embodiment, the first shell 11 is provided with a slot 111, and the second shell 21 includes a plug-in portion 211, and the plug-in portion 211 is plugged into and matched with the slot 111. A mounting portion 212 is provided on a side of the plug-in portion 211 away from the slot 111, and the auxiliary mounting member 30 is snap-mounted on the mounting portion 212.

[0032] In the present invention, when the auxiliary mounting member 30 is disposed on the mounting portion 212 , it can also cooperate with the second housing 21 to limit and fix the second terminal 22 . Specifically, the second shell 21 is provided with a plurality of strip grooves 21f along the direction in which it is inserted into the slot 111, and each second terminal 22 is respectively plugged and installed in the corresponding strip groove 21f. The second shell 21 is located at the position of the mounting portion 212, and a slot opening 2122 may be provided. The slot opening 2122 may be connected to the strip groove 21f, so that the side end of each second terminal 22 is exposed, and an abutment protrusion 34 may be provided at the position of the auxiliary mounting member 30 facing the slot opening 2122. When the auxiliary mounting member 30 is snap-fitted and installed in place in the mounting portion 212, the abutment protrusion 34 may be inserted into the strip groove 21f from the slot opening 2122, and abut against the second terminal 22 in the strip groove 21f to limit the movement of the second terminal 22. While the second terminal 22 is limited by abutting and cooperating with the inner wall of the strip groove 21f, the second terminal 22 may be further limited, thereby improving the installation stability of the second terminal 22 on the second shell 21.

[0033] With such a configuration, when the auxiliary mounting member 30 is installed on the mounting portion 212 of the second shell 21 by snap-fitting, the second terminal 22 can be easily installed and fixed on the second shell 21, and the auxiliary mounting member 30 and the second shell 21 adopt a split design, which can facilitate targeted improvement and optimization of the structure of the auxiliary mounting member 30, so that the auxiliary mounting member 30 can cooperate with the second shell 21 and the first shell 11 respectively, to enhance the structural strength of the plug assembly 20 and the socket assembly 10.

[0034] Optionally, a plurality of the first terminals 12 are spaced apart and distributed along the first direction, and a plurality of the second terminals 22 are spaced apart and distributed along the first direction. The first direction may be the width direction of the secondary lock connector 100. When a plurality of the first terminals 12 are spaced apart and distributed along the first direction, and a plurality of the second terminals 22 are spaced apart and distributed along the first direction, the secondary lock connector 100 is provided with only one set of terminal structures including the first terminals 12 and the second terminals 22 in the thickness direction, so that the thickness of the secondary lock connector 100 is thinner, so that the secondary lock connector 100 can adapt to the line connection in a narrow environment.

[0035] See also Figure 3 , Figure 4 , Figure 6 As shown, in one embodiment, the auxiliary mounting member 30 includes a mounting body and a reinforcing rib portion 33, the mounting body is snap-fitted with the mounting portion 212, the mounting body is used to be plugged into and installed in the slot 111 along with the plug-in portion 211, and the reinforcing rib portion 33 is arranged on a side of the mounting body away from the plug-in portion 211.

[0036] Among them, the installation body can be the part that the auxiliary installation part 30 is installed and matched with the installation part 212, the reinforcing rib part 33 can be arranged on the outer surface of the installation body, the reinforcing rib part 33 can be a structural reinforcement part of the auxiliary installation part 30, and the reinforcing rib part 33 can be arranged on the side of the auxiliary installation part 30 away from the first matching rib 31. When the plug assembly 20 is plugged and installed in the socket assembly 10, the reinforcing rib part 33 can be located on the outside of the slot 111. The reinforcing rib part 33 can provide sufficient structural strength for the auxiliary installation part 30, so that when the installation body and the plug-in part 211 cooperate to form the first reinforcement part, sufficient strength support can be provided for the first reinforcement part, thereby enhancing the strength of the second shell 21, and the reinforcing rib part 33 is located outside the slot 111, which will not affect the installation of the auxiliary installation part 30.

[0037] The structure of the first reinforcement member is further introduced below.

[0038] See also Figure 3 , Figure 6 , Figure 7As shown, in one embodiment, a plurality of first matching ribs 31 are provided on one side of the installation body along the second direction, a plurality of second matching ribs 21c are provided on one side of the plug-in portion 211 along the second direction, a plurality of the second matching ribs 21c are connected one by one with a plurality of the first matching ribs 31, at least one of the second matching ribs 21c is provided with the arc-shaped protrusion 21d at one end close to the first matching rib 31, and the first matching rib 31 is provided with the arc-shaped groove 311; The first direction and the second direction are arranged crosswise.

[0039] In this way, by providing a first mating rib 31 protruding from the outer surface of the installation body and a second mating rib 21c protruding from the outer surface of the plug-in portion 211, the installation body and the plug-in portion 211 both have sufficient structural strength, so that when the arc-shaped protrusion 21d is provided at the end of the first mating rib 31 and the arc-shaped groove 311 is provided at the end of the second mating rib 21c to cooperate with each other, it can be ensured that after the two cooperate with each other, the reliability of the second housing 21 structure is enhanced. In the present invention, the number of second mating ribs 21c provided with arc-shaped protrusions 21d can be set according to the width of the secondary lock connector 100, such as Fig.13 , Fig.14 As shown, when the secondary lock connector 100 is wider, so that it presents a flatter state (for example, the socket assembly 10 has twenty-four first terminals 12, and the plug assembly 20 has twenty-four second terminals 22), most of the second mating ribs 21c can be provided with arc-shaped protrusions 21d. In this way, through the plug-in cooperation of a sufficient number of arc-shaped protrusions 21d and the arc-shaped grooves 311, when the socket assembly 10 is subjected to force over a large area, the structural strength of the middle part of the plug assembly 20 is effectively increased to prevent the plug assembly 20 from deformation.

[0040] In one embodiment, when the second shell 21 is inserted into the first shell 11 , at least one of the mounting body and the plug-in portion 211 cooperates with the inner wall of the slot 111 to form a second reinforcement portion, and the second reinforcement portion is used to enhance the structural strength of the socket assembly 10 .

[0041] In the above embodiment, when the second reinforcement portion is set to enhance the structural strength of the first shell 11, a plurality of grooves can be set on a side of the auxiliary mounting member 30 close to the inner wall of the first shell 11, and a plurality of ribs can be set on the inner wall of the first shell 11. The plurality of ribs and the plurality of grooves can be plugged in one by one to form a second reinforcement portion. When the first shell 11 is subjected to external force, the external force can be transmitted to the plurality of grooves of the auxiliary mounting member 30 through the plurality of ribs, so that the auxiliary mounting member 30 can share the external force exerted on the first shell 11, thereby increasing the structural strength of the first shell 11.

[0042] The structure of the second reinforcement part is further described below. Figure 3, Figure 4 , Figure 6 As shown, optionally, the second reinforcement portion includes a first rib groove and a first rib portion 111b, a plurality of first matching ribs 31 are provided on one side of the installation body along the second direction, and a first sub-rib groove 31a is formed between adjacent first matching ribs 31, and a plurality of second sub-rib grooves 21b are provided on one side of the second shell 21 along the second direction, and the plurality of first sub-rib grooves 31a are connected to the plurality of second sub-rib grooves 21b one by one to form a plurality of first rib grooves; A plurality of first ribs 111b are provided on an inner wall of one side of the slot 111 along the second direction. The plurality of first ribs 111b are arranged at intervals along the first direction. The plurality of first rib grooves are plugged and matched with the plurality of first ribs 111b one by one, so as to enhance the structural strength of the first shell 11 when the second shell 21 is plugged into the slot 111; The first direction and the second direction are arranged crosswise.

[0043] In the present invention, the second direction can be the thickness direction of the secondary lock connector 100, wherein a plurality of first matching ribs 31 can be arranged on the free side of the auxiliary mounting member 30 away from the second shell 21, and a first sub-rib groove 31a is formed by the gap between adjacent first matching ribs 31, and the second sub-rib groove 21b can be arranged on the plug-in portion 211 of the second shell 21. When the plurality of first sub-rib grooves 31a are connected one-to-one with the plurality of second sub-rib grooves 21b to form a plurality of first rib grooves, the first rib groove can be plugged and matched with the first rib portion 111b arranged on the inner wall of the slot 111. By plugging and matching the plurality of first rib grooves with the plurality of first rib portions 111b one-to-one, the contact area between the second shell 21 and the auxiliary mounting member 30 and the first shell 11 is larger. In this way, when the first shell 11 is subjected to external force, it can be locked through the first The side wall of the rib portion 111b is transmitted to the first rib groove. Since the first rib groove is composed of the first sub-rib groove 31a and the second sub-rib groove 21b, the second shell 21 can not only share the force, but the auxiliary mounting part 30 can also share the force, so that when the socket assembly 10 is subjected to force, the external force exerted on the socket assembly 10 can be shared by the auxiliary mounting part 30. In addition, since the reinforcing rib portion 33 is provided, the structural strength of the auxiliary mounting part 30 can be enhanced. When at least one of the installation body and the plug-in part 211 cooperates with the inner wall of the slot to form a second reinforcement part, sufficient strength support can be provided for the second reinforcement part, so that when the second shell 21 is inserted into the slot 111, the strength of the first shell 11 is increased, and the socket assembly 10 has better anti-bending ability, thereby enhancing the structural strength of the socket assembly 10 through the second reinforcement part.

[0044] The following is a further description of the cooperation between the first rib groove and the first rib portion 111b. Figure 8 , Fig. 9As shown, in one embodiment, adjacent first ribs 111b cooperate to form a first limiting groove 111d, the first limiting groove 111d has a first groove section and a second groove section, the first groove section is located between the second groove section and the inner wall of the slot 111, the first groove section is flared from the inner wall of the slot 111 to the second groove section, and the second groove section is equidistantly arranged from the first groove section to the free end of the first rib 111b.

[0045] Among them, when the first slot section is expanded, the inner wall of the first slot section and the inner wall of the connection part of the first rib 111b are set at an obtuse angle. When the first shell 11 is subjected to lateral force, it can be transmitted to the inner wall of the first rib groove through the inner wall of the first slot section. Since the inner wall of the first slot section is obliquely set, the lateral force on the first shell 11 can be decomposed into pressure perpendicular to the inner wall of the first slot section and friction along the extension direction of the first slot section, so that the lateral force can be decomposed into forces in multiple directions, which are subjected to force in different ways, so that after the first rib groove and the first rib 111b are matched, the plug assembly 20 is plugged into the socket assembly 10, and the structural strength of the entire secondary lock connector 100 is better. In addition, the second slot section is equidistantly set from the first slot section to the free end of the first rib 111b, so that after the inner wall of the first rib 111b of this section is matched with the first rib groove, the pre-tightening effect after the second shell 21 and the first shell 11 are plugged is better.

[0046] In addition, when the plug assembly 20 is plugged into the socket assembly 10, in order to further enhance the overall structural strength of the secondary lock connector 100, continue to refer to Figure 8 , Fig. 9 As shown, optionally, the second reinforcement portion also includes a second rib groove 21a and a second rib 111a, a plurality of the second ribs 111a are provided on the inner wall on the other side of the slot 111 along the second direction, the plurality of the second ribs 111a are spaced apart along the first direction, and a plurality of the second rib grooves 21a are provided on the other side of the second direction of the second shell 21, and the plurality of the second ribs 111a are plugged into and matched with the plurality of the second rib grooves 21a one by one, so as to enhance the structural strength of the first shell 11 when the second shell 21 is plugged into the slot 111.

[0047] With such a configuration, when the secondary lock connector 100 is thinner as a whole, resulting in the inner wall thickness on the other side of the first shell 11 in the thickness direction being thinner, the other part of the second reinforcement portion can be formed by one-to-one plug-in matching of multiple second ribs 111a and multiple second rib grooves 21a on the outer surface of the second shell 21, thereby increasing the contact area between the second shell 21 and the inner wall of the first shell 11 at this location. On the premise that the overall structural strength of the second shell 21 is increased by the auxiliary mounting member 30, when the plug assembly 20 is connected to the socket assembly 10, the structural strength of the inner wall of the first shell 11 at this location can be enhanced, thereby strengthening the structural strength of the two inner walls of the first shell 11 in the thickness direction. Therefore, when the socket assembly 10 is connected to the plug assembly 20, the overall strength of the socket assembly 10 is enhanced to prevent the socket assembly 10 from being deformed by external force.

[0048] The cooperation between the second rib 111a and the second rib groove 21a is further introduced below. Optionally, adjacent second ribs 111a cooperate to form a second limiting groove 111c, and the second limiting groove 111c is expanded from the inner wall of the slot 111 to the free end of the second rib 111a.

[0049] With such a configuration, the second rib 111a can be configured in a triangular shape. Compared with a square rib configuration, the occupancy of the second rib 111a in the internal space of the slot 111 can be reduced, and the triangular second rib 111a can make the structural strength of the second rib 111a greater. When matched with the second rib groove 21a, the first shell 11 can withstand greater external force, thereby further improving the structural strength of the inner wall of the first shell 11 at this location.

[0050] The following further describes how the auxiliary mounting member 30 is connected to the second housing 21. Figure 4 , Figure 6 As shown, the mounting portion 212 includes two groups of snap-fitting members 2121, and the two groups of snap-fitting members 2121 are respectively arranged on both sides of the second shell 21 along the first direction, and the mounting body includes a base 30a and two side portions 30b respectively arranged on both sides of the base 30a, and each of the side portions 30b is provided with a snap-fitting member 32, and the snap-fitting member 2121 is snap-fitted with the snap-fitting member 32.

[0051] Among them, when the installation body includes a base 30a and two side portions 30b respectively arranged on both sides of the base 30a, the installation body as a whole can be U-shaped, and the abutment protrusion 34 can be arranged on the side of the base 30a facing the groove opening 2122, the snap-fitting member 2121 can be set as a first snap-fitting member, and the snap-fitting member 32 can be set as a second snap-fitting member, and the second snap-fitting member is arranged on the inner side of the side portion 30b. When the auxiliary installation member 30 is installed on the second shell 21, the first snap-fitting member and the second snap-fitting member are snapped with each other to realize the installation and fixation of the auxiliary installation member 30 on the second shell 21. In this way, the auxiliary installation member 30 and the second shell 21 are conveniently installed, thereby facilitating the installation and fixation of the second terminal 22.

[0052] Optionally, see Figure 2 , Fig.10 As shown, the first shell 11 is provided with prefabricated grooves 112 on both sides along the first direction, and reinforcing sheets 13 are provided in the prefabricated grooves 112. The reinforcing sheets 13 are fixed to the circuit board 200 for installing the first shell 11. In this way, by providing the prefabricated grooves 112 on both sides of the width direction of the first shell 11 and by providing the reinforcing sheets 13 in the prefabricated grooves 112, the structural strength of the first shell 11 itself can be enhanced, and when the socket assembly 10 is not connected to the plug assembly 20, the socket assembly 10 itself has a certain structural strength. In addition, the reinforcing sheets 13 can also be fixed on the circuit board 200 to enhance the connection strength between the first shell 11 and the circuit board 200, thereby preventing the socket assembly 10 from loosening on the circuit board 200.

[0053] The plug connection between the second housing 21 and the first housing 11 is further described below. Figure 3 , Figure 5 As shown, in one embodiment, the second shell 21 further includes a buckle portion 213, which is disposed on one side of the plug-in portion 211 along the first direction, and the buckle portion 213 is engaged with an inner wall of one side of the slot 111 along the first direction.

[0054] With such a configuration, when the second housing 21 is inserted and installed in the slot 111, it can be engaged with the slot 111 through the buckle portion 213, so that the second housing 21 can be fixed in position after being inserted and installed in the first housing 11. In addition, when the buckle portion 213 is only provided on one side of the second housing 21 to engage with the slot 111, compared with providing the buckle portions 213 on both sides of the second housing 21, the effect of the setting of the buckle portion 213 on the width of the second housing 21 can be reduced, so that the width of the plug assembly 20 can be made narrower, and then the width of the secondary lock connector 100 is narrower than that of existing products, so that the overall size is smaller.

[0055] like Figure 4 , Fig. 9 As shown, in addition, a guide rib 215 can be provided on a side of the second shell 21 away from the buckle portion 213, and a guide groove 113 can be provided on the inner wall on the other side of the slot 111 along the thickness direction. When the second shell 21 is inserted into the slot 111, the guide rib 215 slides into the guide groove 113. Through the cooperation between the guide rib 215 and the guide groove 113, when the plug assembly 20 and the socket assembly 10 are plugged and installed, the plug assembly 20 can be accurately installed in place, and the plug assembly 20 can be further limited.

[0056] The structure of the buckle portion 213 is described below. Figure 5 As shown, optionally, the buckle portion 213 includes a rib 213a and a latching protrusion 213b, the rib 213a is elastically connected to the plug-in portion 211, a latching protrusion 213b is provided on the side of the rib 213a facing away from the plug-in portion 211, a latching slot 118 for latching with the latching protrusion 213b is provided on the inner wall of the slot 111, a deformation space is provided between the rib 213a and the plug-in portion 211, and the rib 213a is used to move toward the deformation space under the action of an external force so that the latching protrusion 213b is latched and separated from the latching slot 118.

[0057] The rib 213a extends from the plug-in portion 211 to the mounting portion 212, and the deformation space can extend from one side of the plug-in portion 211 to one side of the mounting portion 212. The protrusion 213b can be arranged at a section of the rib 213a close to the plug-in portion 211. When the rib 213a is pressed toward the deformation space, the protrusion 213b can move toward the deformation space along with the rib 213a, thereby narrowing the overall width of the second shell 21. When the width of the portion of the second shell 21 used for plugging into the slot 111 is smaller than the inner diameter width of the slot 111, the protrusion 213b The second shell 21 can be separated from the bayonet 118 provided on the inner wall of the slot 111, so that the second shell 21 can be separated from the first shell 11. Since the rib 213a is elastically connected to the plug-in portion 211, when the rib 213a is not subjected to the squeezing force toward the deformation space, the rib 213a can be reset to a position away from the deformation space. When the second shell 21 is inserted into the slot 111, the latching protrusion 213b can move toward the bayonet 118 and be engaged with the bayonet 118, so that the second shell 21 is engaged in the slot 111, thereby realizing the connection and fixation between the plug assembly 20 and the socket assembly 10.

[0058] Among them, an anti-slip protrusion 213c can be provided at one end of the rib 213a close to the mounting portion 212, and the anti-slip protrusion 213c can be set on the side of the rib 213a away from the mounting portion 212. When the rib 213a is pressed to move the rib 213a toward the deformation space, the anti-slip protrusion 213c can be pressed, which makes it easier to operate the rib 213a.

[0059] In addition, since the buckle portion 213 is only provided on one side of the second shell 21 in the present invention to realize the connection and fixation between the second shell 21 and the first shell 11, when it is necessary to press the rib 213a to separate the protrusion 213b from the bayonet 118, a pressing slope 331 can be provided on the reinforcing rib portion 33, and the pressing slope 331 is provided on the other side of the second shell 21, opposite to the anti-slip protrusion 213c. In this way, by pressing the anti-slip protrusion 213c and the pressing slope 331, force is applied on both sides at the same time to press the rib 213a toward the deformation space, so that the protrusion 213b is engaged and separated from the bayonet 118, thereby facilitating the plug assembly 20 to be pulled out from the socket assembly 10.

[0060] Optionally, continue to Figure 5 The second shell 21 also includes an end plate portion 214, and the end plate portion 214 is arranged on a side of the mounting portion 212 away from the plug-in portion 211. The rib 213a is elastically connected to the end plate portion 214, and the rib 213a is arranged at an obtuse angle to the end plate portion 214 on a side facing the mounting portion 212.

[0061] In this way, by providing the end plate portion 214, the other end of the rib 213a can be connected to the end plate portion 214, and the rib 213a can be limited by the fixed parts at both ends of the rib 213a. When the rib 213a is deformed by force, it requires a greater external force to deform to the deformation space, thereby helping to improve the connection firmness of the plug assembly 20 on the socket assembly 10. In addition, since the side of the rib 213a facing the mounting portion 212 is arranged at an obtuse angle with the rib 213a, better support can be formed for the end of the rib 213a connected to the end plate portion 214, and the connection strength between the rib 213a and the end plate portion 214 is improved, thereby ensuring the service life of the rib 213a.

[0062] Optionally, see Figure 3 , Figure 4 , Fig. 9 As shown, the plug-in portion 211 is provided with a third mating rib 21e on one side along the second direction, the third mating rib 21e is connected to the rib 213a, and the inner wall of the slot 111 is provided with a resisting rib 114, the resisting rib 114 is limitedly matched with the side of the third mating rib 21e away from the rib 213a.

[0063] Among them, a mating groove for inserting the resisting rib 114 is formed between the third mating rib 21e and the plug-in portion 211. When the second shell 21 is plugged and installed in the slot 111, the resisting rib 114 is inserted into the mating groove, and the resisting rib 114 can abut against the side of the third mating rib 21e away from the rib 213a. When the rib 213a is pressed to make the rib 213a move toward the deformation space, the rib 213a applies a pressing force to the third mating rib 21e through one end connected to the third mating rib 21e, so that the third mating rib 21e can transfer the force to the resisting rib 114. The resisting rib 114 is subjected to force, so that the plug-in portion 211 of the second shell 21 can be prevented from being directly subjected to force and deformed, thereby improving the service life of the plug assembly 20.

[0064] In addition, in the present invention, if Fig. 9 As shown, the retaining rib 114 can be set on one side of the first rib portion 111b, and the retaining rib 114 can cooperate with the first rib portion 111b to form a first limiting groove 111d, so that the retaining rib 114 can also form a plug-in fitting relationship with the first rib groove to improve the structural strength of the socket assembly 10 after the plug assembly 20 is installed. The setting of the first limiting groove 111d is not elaborated here.

[0065] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A small-volume secondary lock connector used in a vehicle charger controller, characterized in that: include: The socket assembly comprises a first housing and a plurality of first terminals arranged in the first housing, wherein the plurality of first terminals are spaced apart and distributed along a first direction; A plug assembly comprises a second housing and a plurality of second terminals provided on the second housing, wherein the second housing is plug-fitted with the first housing, and the plurality of first terminals are mated with the plurality of second terminals one by one; and an auxiliary mounting member, provided on the second housing, the auxiliary mounting member being used to be plugged into the first housing along with the second housing, and being used to cooperate with the second housing to form a first reinforcement portion, the first reinforcement portion being used to enhance the structural strength of the plug assembly; The first reinforcement portion includes an arc-shaped protrusion and an arc-shaped groove. The auxiliary mounting member is provided with at least one arc-shaped groove on a side close to the first shell. The second shell is provided with at least one arc-shaped protrusion. The arc-shaped groove is plug-fitted with the arc-shaped protrusion.

2. The small-volume secondary lock connector applied to the on-board charger controller according to claim 1, characterized in that: The first shell is provided with a slot, the second shell includes a plug-in portion, the plug-in portion is plugged and matched with the slot, a mounting portion is provided on a side of the plug-in portion away from the slot, and the auxiliary mounting piece is snap-fitted and mounted on the mounting portion; The auxiliary mounting part includes a mounting body and a reinforcing rib portion, wherein the mounting body is snap-fitted with the mounting portion, and the mounting body is used to be plugged and installed in the slot along with the plug-in portion, and the reinforcing rib portion is arranged on a side of the mounting body away from the plug-in portion.

3. The small-volume secondary lock connector applied to the on-board charger controller as claimed in claim 2 is characterized in that: A plurality of first matching ribs are provided on one side of the installation body along the second direction, a plurality of second matching ribs are provided on one side of the plug-in portion along the second direction, a plurality of the second matching ribs are connected one by one with a plurality of the first matching ribs, an end of at least one of the second matching ribs close to the first matching rib is provided with the arc-shaped protrusion, and the first matching rib is provided with the arc-shaped groove; The first direction and the second direction are arranged crosswise.

4. The small-volume secondary lock connector applied to the on-board charger controller as claimed in claim 2, characterized in that: When the second housing is inserted into the first housing, at least one of the mounting body and the plug-in portion cooperates with the inner wall of the slot to form a second reinforcement portion, and the second reinforcement portion is used to enhance the structural strength of the socket assembly; The second reinforcement portion includes a first rib groove and a first rib portion, a plurality of first matching ribs are provided on one side of the installation body along the second direction, and a first sub-rib groove is formed between adjacent first matching ribs, and a plurality of second sub-rib grooves are provided on one side of the second shell along the second direction, and the plurality of first sub-rib grooves are connected to the plurality of second sub-rib grooves one by one to form a plurality of first rib grooves; A plurality of the first ribs are provided on an inner wall of one side of the slot along the second direction, the plurality of the first ribs are arranged at intervals along the first direction, and the plurality of the first rib grooves are plugged and matched with the plurality of the first ribs one by one, so as to enhance the structural strength of the first shell when the second shell is plugged into the slot; The first direction and the second direction are arranged crosswise.

5. The small-volume secondary lock connector applied to the on-board charger controller as claimed in claim 4, characterized in that: The adjacent first ribs cooperate to form a first limiting groove, the first limiting groove having a first groove section and a second groove section, the first groove section being located between the second groove section and the inner wall of the slot, the first groove section being flared from the inner wall of the slot to the second groove section, and the second groove section being equidistantly arranged from the first groove section to the free end of the first rib.

6. The small-volume secondary lock connector applied to the on-board charger controller as claimed in claim 4, characterized in that: The second reinforcing portion further includes a second rib groove and a second rib portion, a plurality of the second rib portions are provided on the inner wall of the other side of the slot along the second direction, the plurality of the second rib portions are arranged at intervals along the first direction, a plurality of the second rib grooves are provided on the other side of the second shell along the second direction, and the plurality of the second rib portions are plugged in and matched with the plurality of the second rib grooves one by one, so as to enhance the structural strength of the first shell when the second shell is plugged into the slot; Adjacent second ribs cooperate to form a second limiting groove, and the second limiting groove is expanded from the inner wall of the slot to the free end of the second rib.

7. The small-volume secondary lock connector applied to the on-board charger controller as claimed in claim 2, characterized in that: The mounting portion includes two groups of snap fasteners, which are respectively arranged on two sides of the second shell along the first direction, and the mounting body includes a base and two side portions respectively arranged on two sides of the base, each of the side portions is provided with a snap fastener, and the snap fastener is snap-fitted with the snap fastener; And / or, one side of the first shell in the thickness direction is used to connect to the circuit board; or, the side of the first shell inserted away from the second shell is used to connect to the circuit board.

8. The small-volume secondary lock connector applied to the on-board charger controller as claimed in claim 2, characterized in that: Prefabricated grooves are provided on both sides of the first shell along the first direction, and reinforcing sheets are provided in the prefabricated grooves, and the reinforcing sheets are used to be fixed on the circuit board on which the first shell is installed; And / or, the second shell further includes a buckle portion, the buckle portion is provided on one side of the plug-in portion along the first direction, and the buckle portion is buckled and matched with an inner wall of one side of the slot along the first direction.

9. The small-volume secondary lock connector applied to the on-board charger controller as claimed in claim 8, characterized in that: The buckle part includes a rib and a latching protrusion, the rib is elastically connected to the plug-in part, a latching protrusion is provided on the side of the rib facing away from the plug-in part, a snap-in slot for snapping with the latching protrusion is provided on the inner wall of the slot, a deformation space is provided between the rib and the plug-in part, and the rib is used to move toward the deformation space under the action of external force so that the latching protrusion is snap-fitted and separated from the snap-in slot.

10. The small-volume secondary lock connector used in the on-board charger controller according to claim 9, characterized in that: The second shell further comprises an end plate portion, the end plate portion is arranged on a side of the mounting portion away from the plug-in portion, the rib is elastically connected to the end plate portion, and the side of the rib facing the mounting portion is arranged at an obtuse angle to the end plate portion; And / or, a third matching rib is provided on one side of the second shell along the second direction, the third matching rib is connected to the rib, and a resisting rib is provided on the inner wall of the slot, and the resisting rib is limitedly matched with a side of the third matching rib away from the rib.

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