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

Abstract

The application discloses a small-size secondary lock connector applied to a vehicle-mounted charger controller, relates to the technical field of connectors, and 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 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 in plug-in cooperation with the first shell, the plurality of first terminals are in one-to-one plug-in cooperation with the plurality of second terminals, and the auxiliary mounting piece is arranged on the second shell. The auxiliary mounting piece is used for being plugged into the first shell together with the second shell and is used for cooperating with the second shell to form a first reinforcing part. When the secondary lock connector presents a thinner flat structure, the secondary lock connector has sufficient structural strength, and the service life and the use safety of the secondary lock connector are ensured.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and in particular to a small-volume secondary locking connector for use in on-board charger controllers. Background Technology

[0002] On the vehicle charger controller, connectors are required to connect the wire end and the board end. Existing automotive electrical connectors are difficult to make flat and ultra-thin small-sized structures in order to ensure their own strength, especially when the connector has a flat structure and multiple electrical terminals. Summary of the Invention

[0003] The main objective of this invention is to propose a small-volume secondary locking connector for use in on-board charger controllers, aiming to ensure the strength of the connector while achieving a flat and ultra-thin structure.

[0004] To achieve the above objectives, the present invention proposes a small-volume secondary lock connector for use in on-board charger controllers, comprising: A socket assembly includes a first housing and a plurality of first terminals disposed on the first housing, the plurality of first terminals being spaced apart along a first direction; A plug assembly includes a second housing and a plurality of second terminals disposed on the second housing, wherein the second housing is plugged into a first housing, and the plurality of first terminals are mated with the plurality of second terminals one by one; and An auxiliary mounting component is disposed on the second housing. The auxiliary mounting component is used to be inserted into the first housing along with the second housing, and is used to cooperate with the second housing to form a first reinforcing part. The first reinforcing part is used to enhance the structural strength of the plug assembly. The first reinforcing part includes an arc-shaped protrusion and an arc-shaped groove. The auxiliary mounting part has at least one arc-shaped groove on the side near the first housing. The second housing has at least one arc-shaped protrusion. The arc-shaped groove and the arc-shaped protrusion are inserted into each other.

[0005] In one embodiment, the first housing is provided with a slot, and the second housing includes a plug-in portion that is plugged into the slot. The plug-in portion is provided with a mounting portion on the side away from the slot, and the auxiliary mounting member is snapped onto the mounting portion. The auxiliary mounting component includes a mounting body and a reinforcing rib. The mounting body is snapped into the mounting part and is used to be inserted into the slot along with the plug-in part. The reinforcing rib is located on the side of the mounting body away from the plug-in part.

[0006] In one embodiment, the mounting body is provided with a plurality of first mating ribs on one side along the second direction, and the plug-in part is provided with a plurality of second mating ribs on one side along the second direction. The plurality of second mating ribs are connected to the plurality of first mating ribs one by one. At least one of the second mating ribs is provided with the arc-shaped protrusion at one end near the first mating rib, and the first mating rib is provided with the arc-shaped groove. The first direction and the second direction are intersected.

[0007] In one embodiment, when the second housing is inserted into the first housing, at least one of the mounting body and the insertion portion cooperates with the inner wall of the slot to form a second reinforcing portion, the second reinforcing portion being used to enhance the structural strength of the socket assembly; The second reinforcing part includes a first rib groove and a first rib. The mounting body is provided with a plurality of first mating ribs on one side along the second direction. A first sub-rib groove is formed between adjacent first mating ribs. The second housing is provided with a plurality of second sub-rib grooves on one side along the second direction. The plurality of first sub-rib grooves and the plurality of second sub-rib grooves are connected one by one to form a plurality of first rib grooves. The slot has a plurality of first ribs on one inner wall along the second direction. The plurality of first ribs are spaced apart along the first direction. The plurality of first rib grooves are inserted into the plurality of first ribs one by one to enhance the structural strength of the first shell when the second shell is inserted into the slot. The first direction and the second direction are intersected.

[0008] In one embodiment, adjacent first ribs cooperate to form a first limiting groove. The first limiting groove has a first groove segment and a second groove segment. The first groove segment is located between the second groove segment and the inner wall of the slot. The first groove segment is flared from the inner wall of the slot to the second groove segment. The second groove segment is equidistant from the first groove segment to the free end of the first rib.

[0009] In one embodiment, the second reinforcing part further includes a second rib groove and a second rib. The inner wall of the slot along the other side of the second direction is provided with a plurality of second ribs. The plurality of second ribs are spaced apart along the first direction. The second housing is provided with a plurality of second rib grooves along the other side of the second direction. The plurality of second ribs and the plurality of second rib grooves are inserted into each other to enhance the structural strength of the first housing when the second housing is inserted into the slot. The adjacent second ribs cooperate to form a second limiting groove, and the second limiting groove is flared from the inner wall of the slot to the free end of the second rib.

[0010] In one embodiment, the mounting part includes two sets of fasteners, which are respectively disposed on both sides of the second housing along the first direction. The mounting body includes a base and two side portions respectively disposed on both sides of the base. Each side portion is provided with a fastening engagement member, and the fasteners engage with the fastening engagement members. And / or, one side of the first housing in the thickness direction is used to connect the circuit board; or, the side of the first housing away from the insertion of the second housing is used to connect the circuit board.

[0011] In one embodiment, the first housing has prefabricated grooves on both sides along a first direction, and reinforcing plates are provided in the prefabricated grooves. The reinforcing plates are used to fix the circuit board on which the first housing is mounted. And / or, the second housing further includes a latching portion, which is disposed on one side of the insertion portion along the first direction, and the latching portion engages with the inner wall of the slot on one side along the first direction.

[0012] In one embodiment, the snap-fit ​​portion includes a rib and a snap protrusion. The rib is elastically connected to the insertion portion. The rib has a snap protrusion on the side opposite to the insertion portion. The inner wall of the slot has a slot that engages with the snap protrusion. A deformation space is provided between the rib and the insertion portion. The rib is used to move toward the deformation space under the action of external force so that the snap protrusion and the slot can be engaged and separated.

[0013] In one embodiment, the second housing further includes an end plate portion, the end plate portion being disposed on the side of the mounting portion away from the insertion portion, the rib elastically connecting the end plate portion, and the side of the rib facing the mounting portion being disposed at an obtuse angle to the end plate portion; And / or, the second housing is provided with a third mating rib on one side along the second direction, the third mating rib is connected to the rib strip, the inner wall of the slot is provided with a stop rib, the stop rib is limited to the side of the third mating rib away from the rib strip.

[0014] The technical solution of this invention provides an auxiliary mounting component on the plug assembly. This auxiliary mounting component cooperates with the second housing to form a first reinforcing part. Through the insertion and cooperation of the arc-shaped protrusion and the arc-shaped groove of the first reinforcing part, the external force on the second housing can be transmitted to the arc-shaped groove through the arc-shaped protrusion, and then to the auxiliary mounting component. Since the arc-shaped protrusion and the inner wall of the arc-shaped groove abut against each other in multiple directions, the force can be distributed at multiple angles through the arc-shaped groove, thereby enhancing the structural strength of the second housing and thus enhancing the structural strength of the plug assembly. As a result, when the plug assembly is inserted and installed in the socket assembly, the overall structural strength of the secondary locking connector is improved. When multiple first terminals are spaced apart along the first direction, making the socket assembly and plug assembly flat, the structural strength of the secondary locking connector can be increased through the first reinforcing part, thereby allowing the secondary locking connector to present a thinner and flatter structure. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a structure of an embodiment of the secondary locking connector provided by the present invention; Figure 2 for Figure 1 An exploded view of the secondary lock connector; Figure 3 for Figure 2 Diagram showing the fit between the plug assembly and auxiliary mounting components; Figure 4 for Figure 2 A schematic diagram of the plug assembly at one angle; Figure 5 for Figure 2 Another angle view of the plug assembly; Figure 6 for Figure 2 A schematic diagram of the auxiliary installation component from one angle; Figure 7 for Figure 2 Another angle view of the auxiliary installation component; Figure 8 for Figure 2 Another angled schematic diagram of the plug assembly; Figure 9 for Figure 2 A schematic diagram of the first shell at one angle; Figure 10 for Figure 2Another angle view of the first shell in the middle; Figure 11 for Figure 2 A schematic diagram of the installation of the first housing in the middle; Figure 12 This is a schematic diagram of another embodiment of the secondary locking connector provided by the present invention; Figure 13 A schematic diagram of another embodiment of the secondary locking connector provided by the present invention; Figure 14 This is a schematic diagram of another embodiment of the secondary locking connector provided by the present invention.

[0017] Explanation of icon numbers: 100. Secondary locking 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. Abutment rib; 115. Positioning post; 116. Insertion groove; 117. Concealed groove; 118. Bayonet; 12. First terminal; 13. Reinforcing piece; 20. Plug assembly; 21. Second housing; 21a. Second rib groove; 21b. Second sub-rib groove; 21c. Second mating rib; 21d. Arc-shaped 21e, third mating rib; 21f, strip groove; 211, plug-in part; 212, mounting part; 2121, snap fastener; 2122, groove opening; 213, snap fastener; 213a, rib; 213b, snap protrusion; 213c, anti-slip protrusion; 214, end plate part; 215, guide rib; 22, second terminal; 30, auxiliary mounting part; 30a, base; 30b, side part; 31, first mating rib; 31a, first sub-rib groove; 311, arc-shaped groove; 32, snap fastener; 33, reinforcing rib part; 331, pressing bevel; 34, abutment protrusion; 200. Circuit board; 201. Positioning hole.

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

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort 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 indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0022] On the vehicle charger controller, connectors are required to connect the wire end and the board end. Existing automotive electrical connectors are difficult to make flat and ultra-thin small-sized structures in order to ensure their own strength, especially when the connector has a flat structure and multiple electrical terminals.

[0023] This invention proposes a small-volume secondary locking connector for use in on-board charger controllers, aiming to ensure the strength of the connector while achieving a flat and ultra-thin structure.

[0024] Please see Figures 1 to 14In one embodiment of the present invention, the secondary locking connector 100 includes a socket assembly 10, a plug assembly 20, and an auxiliary mounting member 30. The socket assembly 10 includes a first housing 11 and a plurality of first terminals 12 disposed on the first housing 11, the plurality of first terminals 12 being 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. The second housing 21 is inserted into the first housing 11, and the plurality of first terminals 12 are mated with the plurality of second terminals 22 one by one. The auxiliary mounting member 30 is provided with... In the second housing 21, the auxiliary mounting member 30 is used to be inserted into the first housing 11 along with the second housing 21, and is used to cooperate with the second housing 21 to form a first reinforcing part. The first reinforcing part is used to enhance the structural strength of the plug assembly 20. The first reinforcing part includes an arc-shaped protrusion 21d and an arc-shaped groove 311. The auxiliary mounting member 30 is provided with at least one arc-shaped groove 311 on the side near the first housing 11. The second housing 21 is provided with at least one arc-shaped protrusion 21d. The arc-shaped groove 311 is inserted into the arc-shaped protrusion 21d.

[0025] In this invention, the first housing 11 of the secondary locking connector 100 can be fixed to the circuit board 200, and a plurality of first terminals 12 disposed on the first housing 11 can be connected to the power receiving terminals of the circuit board 200. The plurality of first terminals 12 and a plurality of second terminals 22 are mated and cooperated one by one. When the second housing 21 is inserted and installed on the first housing 11, each first terminal 12 is inserted into the corresponding second terminal 22, so that the plug assembly 20 and the socket assembly 10 are electrically connected. The plurality of 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. The plurality of 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. Thus, the secondary locking connector 100 has an overall flat structure.

[0026] like Figure 10 , Figure 11As shown, when the first housing 11 is mounted to the circuit board 200, a plurality of positioning posts 115 can be provided at the bottom of the first housing 11, and positioning holes 201 that engage with the positioning posts 115 are provided on the circuit board 200, so that the first housing 11 can be accurately positioned at the designated mounting position on 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 mounted on the first housing 11, a plug-in groove 116 can be provided at the end of the first housing 11 away from the second housing 21. The first terminal 12 is inserted into the slot 111 of the first housing 11 through the plug-in groove 116. Furthermore, a hidden groove 117 can be provided on the side of the first housing 11 facing the circuit board 200, and the end of the first terminal 12 exposed on the first housing 11 can be located in the hidden groove 117 and connected to the circuit board 200 through the hidden groove 117.

[0027] like Figure 1 , Figure 12 As shown, optionally, one side of the first housing 11 in the thickness direction is used to connect to the circuit board 200; or, the side of the first housing 11 away from the insertion of the second housing 21 is used to connect to the circuit board 200. Thus, when the socket assembly 10 is connected to the circuit board 200, it can be that one side of the socket assembly 10 in the thickness direction is connected to the circuit board 200, so that the socket assembly 10 is mounted horizontally on the circuit board 200; or it can be that 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 mounted vertically on the circuit board 200. No limitation is made here. Furthermore, 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, the more the number of the first terminal 12 and the second terminal 22, the flatter the secondary locking connector 100 becomes. The flatter the secondary locking connector, the weaker its structural strength. By providing an auxiliary mounting component 30, which is located on the second housing 21 and cooperates with it, the overall structural strength of the second housing 21 is enhanced, thereby enhancing the structural strength of the plug assembly 20. Furthermore, when the auxiliary mounting component 30 is inserted into the socket assembly 10 along with the second housing 21, it can cooperate with the first housing 11 to enhance the structural strength of the first housing 11, thereby enhancing the structural strength of the socket assembly 10, and thus enhancing the overall structural strength of the secondary locking connector 100.

[0028] When the first reinforcing member is configured as an arc-shaped protrusion 21d and an arc-shaped groove 311, the arc-shaped protrusion 21d and the arc-shaped groove 311 are interlocked. The arc-shaped protrusion 21d can abut against the inner wall of the arc-shaped groove 311. When the second housing 21 is subjected to force, the force 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 distributed at multiple angles through the arc-shaped groove 311. Furthermore, the force can be distributed through the auxiliary mounting member 30, thereby enhancing the structural strength of the middle part of the second housing 21 when the strength is relatively weak. In this invention, the number of arc-shaped protrusions 21d can be set according to the width of the secondary locking connector 100, such as... Figure 13 , Figure 14 As shown, when the secondary locking connector 100 is wider, making it more flat (for example, the socket assembly 10 has twenty-four first terminals 12 and the plug assembly 20 has twenty-four second terminals 22), multiple arc-shaped protrusions 21d can be provided. In this way, by the insertion and cooperation of a sufficient number of arc-shaped protrusions 21d and arc-shaped grooves 311, the structural strength of the middle part of the plug assembly 20 can be effectively increased when the socket assembly 10 is subjected to large-area force, thus preventing the plug assembly 20 from deforming.

[0029] Of course, in other embodiments, when the auxiliary mounting member 30 enhances the structural strength of the second housing 21, one end of the auxiliary mounting member 30 may abut against the second housing 21. When the second housing 21 is subjected to external force, the force can be transmitted to the auxiliary mounting member 30 through the part abutting against the auxiliary mounting member 30. Thus, the auxiliary mounting member 30 can bear the force on the second housing 21 and share the force on the second housing 21, thereby increasing the structural strength of the second housing 21. Alternatively, the first reinforcing part may be a plurality of interlocking insert structures, and the specific details are not limited.

[0030] The technical solution of the present invention provides an auxiliary mounting member 30 on the plug assembly 20. The auxiliary mounting member 30 cooperates with the second housing 21 to form a first reinforcing part. Through the insertion and cooperation of the arc-shaped protrusion 21d of the first reinforcing part with the arc-shaped groove 311, the external force on the second housing 21 can be transmitted to the arc-shaped groove 311 through the arc-shaped protrusion 21d, and then 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 distributed at multiple angles through the arc-shaped groove 311, thereby enhancing the structural strength of the second housing 21 and thus enhancing the structural strength of the plug assembly 20. As a result, when the plug assembly 20 is inserted and installed in the socket assembly 10, the overall structural strength of the secondary locking connector 100 is improved. When multiple first terminals 12 are distributed at intervals along the first direction, making the socket assembly 10 and the plug assembly 20 flat, the structural strength of the secondary locking connector 100 can be increased through the first reinforcing part, so that the secondary locking connector 100 can present a thinner flat structure.

[0031] See Figure 4 , Figure 6 , Figure 9 As shown, in one embodiment, the first housing 11 is provided with a slot 111, and the second housing 21 includes a plug-in portion 211, which is plugged into the slot 111. The plug-in portion 211 is provided with a mounting portion 212 on the side away from the slot 111, and the auxiliary mounting member 30 is snapped onto the mounting portion 212.

[0032] In this invention, when the auxiliary mounting component 30 is provided in the mounting part 212, it can also cooperate with the second housing 21 to limit and fix the second terminal 22. Specifically, the second housing 21 has multiple strip-shaped grooves 21f extending through it along the direction of its insertion slot 111. Each second terminal 22 is inserted into the corresponding strip-shaped groove 21f. The second housing 21, located at the mounting part 212, has a groove opening 2122 that connects to the strip-shaped groove 21f, exposing the side end of each second terminal 22. The auxiliary mounting member 30 has an abutment protrusion 34 facing the groove opening 2122. When the auxiliary mounting member 30 is snapped into place at the mounting part 212, the abutment protrusion 34 can be inserted from the groove opening 2122 into the strip-shaped groove 21f and abut against the second terminal 22 in the strip-shaped groove 21f to restrict the movement of the second terminal 22. While the second terminal 22 is limited by abutting against the inner wall of the strip-shaped groove 21f, the second terminal 22 can be further limited, thereby improving the installation stability of the second terminal 22 on the second housing 21.

[0033] With this configuration, when the auxiliary mounting component 30 is installed on the mounting portion 212 of the second housing 21 by snap-fit, it is convenient to install and fix the second terminal 22 on the second housing 21. Furthermore, the auxiliary mounting component 30 and the second housing 21 are designed separately, which makes it easy to make targeted improvements and optimizations to the structure of the auxiliary mounting component 30. This allows the auxiliary mounting component 30 to cooperate with the second housing 21 and the first housing 11 respectively, thereby improving the structural strength of the plug assembly 20 and the socket assembly 10.

[0034] Optionally, a plurality of first terminals 12 are spaced apart along a first direction, and a plurality of second terminals 22 are spaced apart along a first direction. The first direction can be the width direction of the secondary locking connector 100. When the plurality of first terminals 12 and the plurality of second terminals 22 are spaced apart along the first direction, the secondary locking connector 100 has only one set of terminal structures including first terminals 12 and second terminals 22 in the thickness direction. This makes the secondary locking connector 100 thinner, allowing it to adapt to wiring connections in narrow environments.

[0035] See Figure 3 , Figure 4 , Figure 6 As shown, in one embodiment, the auxiliary mounting component 30 includes a mounting body and a reinforcing rib 33. The mounting body is engaged with the mounting part 212. The mounting body is used to be inserted and installed in the slot 111 along with the plug-in part 211. The reinforcing rib 33 is located on the side of the mounting body away from the plug-in part 211.

[0036] The mounting body can be the part where the auxiliary mounting component 30 and the mounting part 212 are installed and cooperate. The reinforcing rib 33 can be arranged around the outer surface of the mounting body. The reinforcing rib 33 can be a structural reinforcement part of the auxiliary mounting component 30. The reinforcing rib 33 can be located on the side of the auxiliary mounting component 30 away from the first mating rib 31. When the plug assembly 20 is inserted into the socket assembly 10, the reinforcing rib 33 can be located outside the slot 111. The reinforcing rib 33 can provide sufficient structural strength for the auxiliary mounting component 30, so that when the mounting body and the plugging part 211 cooperate to form the first reinforcing part, it can provide sufficient strength support for the first reinforcing part, thereby enhancing the strength of the second housing 21. Furthermore, since the reinforcing rib 33 is located outside the slot 111, it does not affect the installation of the auxiliary mounting component 30.

[0037] The structure of the first reinforcing member will be further described below.

[0038] See Figure 3 , Figure 6 , Figure 7As shown, in one embodiment, the mounting body is provided with a plurality of first mating ribs 31 on one side along the second direction, and the insertion part 211 is provided with a plurality of second mating ribs 21c on one side along the second direction. The plurality of second mating ribs 21c are connected to the plurality of first mating ribs 31 one by one. At least one of the second mating ribs 21c is provided with the arc-shaped protrusion 21d at one end near the first mating rib 31, and the first mating rib 31 is provided with the arc-shaped groove 311. The first direction and the second direction are intersected.

[0039] This configuration, by providing a first mating rib 31 protruding from the outer surface of the mounting body and a second mating rib 21c protruding from the outer surface of the insertion part 211, ensures that both the mounting body and the insertion part 211 possess sufficient structural strength. Thus, when the arc-shaped protrusion 21d at the end of the first mating rib 31 and the arc-shaped groove 311 at the end of the second mating rib 21c engage with each other, the reliability of the structural reinforcement of the second housing 21 is guaranteed. In this invention, the number of second mating ribs 21c with arc-shaped protrusions 21d can be set according to the width of the secondary locking connector 100, such as... Figure 13 , Figure 14 As shown, when the secondary locking connector 100 is wider, making it more flat (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 insertion and engagement of a sufficient number of arc-shaped protrusions 21d with arc-shaped grooves 311, the structural strength of the middle part of the plug assembly 20 is effectively increased when the socket assembly 10 is subjected to large-area force, preventing the plug assembly 20 from deforming.

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

[0041] In the above embodiments, when the second reinforcing part is provided to enhance the structural strength of the first housing 11, multiple slots can be provided on the side of the auxiliary mounting member 30 that is close to the inner wall of the first housing 11, and multiple ribs can be provided on the inner wall of the first housing 11. The multiple ribs and multiple slots can be inserted and matched one by one to form the second reinforcing part. When the first housing 11 is subjected to external force, the external force can be transmitted to the multiple slots of the auxiliary mounting member 30 through the multiple ribs, so that the auxiliary mounting member 30 can share the external force on the first housing 11, thereby increasing the structural strength of the first housing 11.

[0042] The structure of the second reinforcing section will be further described below; please refer to [link / reference]. Figure 3, Figure 4 , Figure 6 As shown, optionally, the second reinforcing part includes a first rib groove and a first rib portion 111b. The mounting body is provided with a plurality of first mating ribs 31 on one side along the second direction. A first sub-rib groove 31a is formed between adjacent first mating ribs 31. The second housing 21 is provided with a plurality of second sub-rib grooves 21b on one side along the second direction. The plurality of first sub-rib grooves 31a and the plurality of second sub-rib grooves 21b are connected to each other to form a plurality of first rib grooves. The slot 111 has a plurality of first ribs 111b on one inner wall along the second direction. The plurality of first ribs 111b are spaced apart along the first direction. The plurality of first rib grooves are inserted into the plurality of first ribs 111b one by one to enhance the structural strength of the first housing 11 when the second housing 21 is inserted into the slot 111. The first direction and the second direction are intersected.

[0043] In this invention, the second direction can be the thickness direction of the secondary locking connector 100. Multiple first mating ribs 31 can be provided on the free side of the auxiliary mounting member 30 away from the second housing 21. A first sub-rib groove 31a is formed through the gap between adjacent first mating ribs 31. A second sub-rib groove 21b can be provided in the insertion portion 211 of the second housing 21. When multiple first sub-rib grooves 31a and multiple second sub-rib grooves 21b are connected one-to-one to form multiple first rib grooves, the first rib grooves can be inserted into and engaged with the first rib portion 111b provided on the inner wall of the slot 111. Through the one-to-one insertion and engagement of multiple first rib grooves and multiple first rib portions 111b, the contact area between the second housing 21 and the auxiliary mounting member 30 as a whole and the first housing 11 is larger. Thus, when the first housing 11 is subjected to external force, the first rib grooves can be engaged to prevent the first rib from collapsing. The sidewall of the rib 111b transmits the force to the first rib groove. Since the first rib groove is formed by the docking of the first sub-rib groove 31a and the second sub-rib groove 21b, the second housing 21 can not only share the force, but the auxiliary mounting member 30 can also share the force. This allows the socket assembly 10 to share the external force when it is under stress through the auxiliary mounting member 30. Furthermore, the presence of the reinforcing rib 33 enhances the structural strength of the auxiliary mounting member 30. When at least one of the mounting body and the plug-in part 211 cooperates with the inner wall of the slot to form the second reinforcing part, it can provide sufficient strength support for the second reinforcing part. This increases the strength of the first housing 11 when the second housing 21 is inserted into the slot 111, making the socket assembly 10 more resistant to bending. Thus, the second reinforcing part enhances the structural strength of the socket assembly 10.

[0044] The following section provides a further description of the fit between the first rib groove and the first rib portion 111b. (See attached document.) Figure 8 , Figure 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 segment and a second groove segment. The first groove segment is located between the second groove segment and the inner wall of the slot 111. The first groove segment is flared from the inner wall of the slot 111 to the second groove segment. The second groove segment is equidistant from the first groove segment to the free end of the first rib 111b.

[0045] When the first groove segment is flared, the inner wall of the first groove segment and the inner wall of the connection part of the first rib 111b form an obtuse angle. When the first housing 11 is subjected to lateral force, the force can be transmitted through the inner wall of the first groove segment to the inner wall of the first rib groove. Since the inner wall of the first groove segment is obliquely oriented, the lateral force on the first housing 11 can be decomposed into pressure perpendicular to the inner wall of the first groove segment and frictional force along the extension direction of the first groove segment. This decomposes the lateral force into forces in multiple directions, each subjected to force in different ways. After the first rib groove and the first rib 111b are engaged, the plug assembly 20 is inserted into the socket assembly 10, resulting in better structural strength of the entire secondary locking connector 100. Furthermore, the second groove segment is equidistant from the first groove segment to the free end of the first rib 111b. This ensures that after the inner wall of the first rib 111b in this segment engages with the first rib groove, the pre-tightening effect after the second housing 21 is inserted into the first housing 11 is better.

[0046] In addition, when the plug assembly 20 is inserted into the socket assembly 10, to further enhance the overall structural strength of the secondary locking connector 100, please refer to [reference needed]. Figure 8 , Figure 9 As shown, optionally, the second reinforcing part further includes a second rib groove 21a and a second rib 111a. The inner wall of the slot 111 along the other side of the second direction is provided with a plurality of second ribs 111a. The plurality of second ribs 111a are spaced apart along the first direction. The second housing 21 along the other side of the second direction is provided with a plurality of second rib grooves 21a. The plurality of second ribs 111a and the plurality of second rib grooves 21a are inserted into each other to enhance the structural strength of the first housing 11 when the second housing 21 is inserted into the slot 111.

[0047] With this configuration, when the secondary locking connector 100 is relatively thin, resulting in a thinner inner wall on the other side of the first housing 11 in the thickness direction, another part of the second reinforcing part can be formed by the one-to-one insertion and cooperation of multiple second ribs 111a with multiple second rib grooves 21a on the outer surface of the second housing 21. This increases the contact area between the second housing 21 and the inner wall of the first housing 11 at this point. With the second housing 21 having increased overall structural strength through the auxiliary mounting part 30, the structural strength of the inner wall of the first housing 11 at this point can be enhanced when the plug assembly 20 is connected to the socket assembly 10. This strengthens the structural strength of the inner walls at both points in the thickness direction of the first housing 11, thereby enhancing the overall strength of the socket assembly 10 when it is connected to the plug assembly 20 and preventing the socket assembly 10 from being deformed by external forces.

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

[0049] This arrangement allows the second rib 111a to be triangular, which reduces the space occupied by the second rib 111a inside the slot 111 compared to a square rib. Furthermore, the triangular second rib 111a has greater structural strength, enabling the first housing 11 to withstand greater external forces when it mates with the second rib groove 21a, thereby further enhancing the structural strength of the inner wall of the first housing 11 at that location.

[0050] The following section provides a further explanation of how the auxiliary mounting component 30 connects to the second housing 21. (See attached document.) Figure 4 , Figure 6 As shown, the mounting part 212 includes two sets of fastening members 2121, which are respectively disposed on both sides of the second housing 21 along the first direction. The mounting body includes a base 30a and two side parts 30b respectively disposed on both sides of the base 30a. Each side part 30b is provided with a fastening engagement member 32, and the fastening member 2121 engages with the fastening engagement member 32.

[0051] When the mounting body includes a base 30a and two side portions 30b respectively located on both sides of the base 30a, the mounting body can be U-shaped as a whole. The abutment protrusion 34 can be located on the side of the base 30a facing the slot opening 2122. The latching member 2121 can be set as a first latching protrusion, and the latching mating member 32 can be set as a second latching protrusion. The second latching protrusion is located on the inner side of the side portion 30b. When the auxiliary mounting member 30 is installed on the second housing 21, the first latching protrusion and the second latching protrusion are engaged with each other to realize the installation and fixation of the auxiliary mounting member 30 on the second housing 21. Thus, the convenient installation of the auxiliary mounting member 30 and the second housing 21 facilitates the installation and fixation of the second terminal 22.

[0052] Optionally, see Figure 2 , Figure 10 As shown, the first housing 11 has prefabricated grooves 112 on both sides along the first direction. Reinforcing plates 13 are provided within the prefabricated grooves 112 and are fixed to the circuit board 200 for mounting the first housing 11. Thus, by providing prefabricated grooves 112 on both sides of the first housing 11 in the width direction and by providing reinforcing plates 13 within the prefabricated grooves 112, the structural strength of the first housing 11 itself can be enhanced. This ensures that the socket assembly 10 has a certain structural strength even when it is not connected to the plug assembly 20. Furthermore, the reinforcing plates 13, by being fixed to the circuit board 200, can enhance the connection strength between the first housing 11 and the circuit board 200, thereby preventing the socket assembly 10 from loosening on the circuit board 200.

[0053] The following section provides a further description of the plug-in connection between the second housing 21 and the first housing 11. (See attached document.) Figure 3 , Figure 5 As shown, in one embodiment, the second housing 21 further includes a latching portion 213, which is disposed on one side of the insertion portion 211 along the first direction, and the latching portion 213 engages with the inner wall of the slot 111 along the first direction.

[0054] This design allows the second housing 21 to engage with the slot 111 via the latching part 213 when it is inserted into the slot 111, thus securing the second housing 21 after it is inserted into the first housing 11. Furthermore, by providing the latching part 213 only on one side of the second housing 21 for engagement with the slot 111, compared to providing latching parts 213 on both sides of the second housing 21, the impact of the latching part 213 on the width of the second housing 21 is reduced. This allows for a narrower plug assembly 20, resulting in a narrower secondary locking connector 100 compared to existing products, thus reducing the overall size.

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

[0056] The structure of the latching part 213 is described below. (See attached image.) Figure 5 As shown, optionally, the latching part 213 includes a rib 213a and a latching protrusion 213b. The rib 213a is elastically connected to the insertion part 211. The rib 213a has a latching protrusion 213b on the side opposite to the insertion part 211. The inner wall of the slot 111 has a latching opening 118 that engages with the latching protrusion 213b. A deformation space is provided between the rib 213a and the insertion part 211. The rib 213a is used to move toward the deformation space under the action of external force so that the latching protrusion 213b engages and separates from the latching opening 118.

[0057] The rib 213a extends from the insertion part 211 to the mounting part 212. The deformation space extends from one side of the insertion part 211 to one side of the mounting part 212. The latching protrusion 213b can be provided on a section of the rib 213a near the insertion part 211. When the rib 213a is pressed toward the deformation space, the latching protrusion 213b moves with the rib 213a toward the deformation space, thereby narrowing the overall width of the second housing 21. When the width of the part of the second housing 21 used for insertion into the slot 111 is less than the inner diameter width of the slot 111, the latching protrusion 213b... The second housing 21 can be separated from the first housing 11 by the snap-fit ​​118 on the inner wall of the slot 111. Since the rib 213a is elastically connected to the plug part 211, when the rib 213a is not subjected to the squeezing force towards the deformation space, the rib 213a can be reset to a position away from the deformation space. When the second housing 21 is inserted into the slot 111, the snap-fit ​​protrusion 213b can move towards the snap-fit ​​118 and engage with the snap-fit ​​118, so that the second housing 21 is engaged in the slot 111, thereby realizing the connection and fixation of the plug assembly 20 and the socket assembly 10.

[0058] Among them, the end of the rib 213a near the mounting part 212 may be provided with an anti-slip protrusion 213c. The anti-slip protrusion 213c may be located on the side of the rib 213a away from the mounting part 212. When pressing the rib 213a 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 present invention only provides a buckle portion 213 on one side of the second housing 21 to realize the connection and fixation between the second housing 21 and the first housing 11, when it is necessary to press the rib 213a to separate the protrusion 213b from the slot 118, a pressing slope 331 can be provided on the reinforcing rib 33, and the pressing slope 331 can be provided on the other side of the second housing 21, opposite to the anti-slip protrusion 213c. In this way, by pressing the anti-slip protrusion 213c and the pressing slope 331, the rib 213a can be pressed towards the deformation space by applying force from both sides at the same time, so that the protrusion 213b can be snapped and separated from the slot 118, thereby making it easy to remove the plug assembly 20 from the socket assembly 10.

[0060] Optionally, please continue reading Figure 5 The second housing 21 further includes an end plate portion 214, which is disposed on the side of the mounting portion 212 away from the insertion portion 211. The rib 213a is elastically connected to the end plate portion 214, and the side of the rib 213a facing the mounting portion 212 is set at an obtuse angle to the end plate portion 214.

[0061] Thus, by providing the end plate portion 214, the other end of the rib 213a can be connected to the end plate portion 214. The rib 213a can be limited by the fixed portions at both ends, requiring a greater external force to deform into the deformation space when the rib 213a is subjected to force, thereby helping to improve the connection firmness of the plug assembly 20 on the socket assembly 10. Furthermore, since the side of the rib 213a facing the mounting portion 212 is set at an obtuse angle to the end plate portion 214, better support can be provided at the end of the rib 213a connected to the end plate portion 214, improving the connection strength between the rib 213a and the end plate portion 214, thereby ensuring the service life of the rib 213a.

[0062] Optionally, see Figure 3 , Figure 4 , Figure 9 As shown, the insertion part 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. The inner wall of the slot 111 is provided with a stop rib 114. The stop rib 114 is limited to the side of the third mating rib 21e away from the rib 213a.

[0063] Among them, a mating groove is formed between the third mating rib 21e and the plug portion 211 for the insertion of the abutment rib 114. When the second housing 21 is inserted into the slot 111, the abutment rib 114 is inserted into the mating groove, and the abutment rib 114 can abut against the side of the third mating rib 21e away from the rib 213a. When the rib 213a is pressed and moves towards the deformation space, the rib 213a applies the pressing force to the third mating rib 21e through the end connected to the third mating rib 21e, so that the third mating rib 21e can transmit the force to the abutment rib 114. By resisting the force with the abutment rib 114, the plug portion 211 of the second housing 21 can be prevented from being directly subjected to force and deformed, thus improving the service life of the plug assembly 20.

[0064] Furthermore, in this invention, such as Figure 9 As shown, the abutment rib 114 can be disposed on one side of the first rib portion 111b, and the abutment rib 114 can cooperate with the first rib portion 111b to form a first limiting groove 111d. In this way, the abutment rib 114 can also form a plug-in 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 will not be described in detail here.

[0065] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A small-volume secondary locking connector for use in on-board charger controllers, characterized in that, include: A socket assembly includes a first housing and a plurality of first terminals disposed on the first housing, the plurality of first terminals being spaced apart along a first direction; A plug assembly includes a second housing and a plurality of second terminals disposed on the second housing, wherein the second housing is plugged into a first housing, and the plurality of first terminals are mated with the plurality of second terminals one by one; and An auxiliary mounting component is disposed on the second housing. The auxiliary mounting component is used to be inserted into the first housing along with the second housing, and is used to cooperate with the second housing to form a first reinforcing part. The first reinforcing part is used to enhance the structural strength of the plug assembly. The first reinforcing part includes arc-shaped protrusions and arc-shaped grooves. The auxiliary mounting part is provided with a plurality of arc-shaped grooves arranged at intervals along the first direction on the side near the first housing. The second housing is provided with a plurality of arc-shaped protrusions arranged at intervals along the first direction. The arc-shaped grooves are inserted into and engaged with the corresponding arc-shaped protrusions. The first housing has a slot, and the second housing includes a plug-in part that plugs into the slot. The plug-in part has a mounting part on the side away from the slot, and the auxiliary mounting part is snapped onto the mounting part. The auxiliary mounting component includes a mounting body and a reinforcing rib. The mounting body is snapped into the mounting part. The mounting body is used to be inserted into the slot along with the plug-in part. The reinforcing rib is located on the side of the mounting body away from the plug-in part. When the second housing is inserted into the first housing, at least one of the mounting body and the insertion part cooperates with the inner wall of the slot to form a second reinforcing part, which is used to enhance the structural strength of the socket assembly.

2. The small-volume secondary locking connector for use in an on-board charger controller as described in claim 1, characterized in that, The mounting body is provided with a plurality of first mating ribs on one side along the second direction, and the plug-in part is provided with a plurality of second mating ribs on one side along the second direction. The plurality of second mating ribs are connected to the plurality of first mating ribs one by one. At least one second mating rib is provided with the arc-shaped protrusion at one end near the first mating rib, and the first mating rib is provided with the arc-shaped groove. The first direction and the second direction are intersected.

3. The small-volume secondary locking connector for use in an on-board charger controller as described in claim 1, characterized in that, The second reinforcing part includes a first rib groove and a first rib. The mounting body is provided with a plurality of first mating ribs on one side along the second direction. A first sub-rib groove is formed between adjacent first mating ribs. The second housing is provided with a plurality of second sub-rib grooves on one side along the second direction. The plurality of first sub-rib grooves and the plurality of second sub-rib grooves are connected one by one to form a plurality of first rib grooves. The slot has a plurality of first ribs on one inner wall along the second direction. The plurality of first ribs are spaced apart along the first direction. The plurality of first rib grooves are inserted into the plurality of first ribs one by one to enhance the structural strength of the first shell when the second shell is inserted into the slot. The first direction and the second direction are intersected.

4. The small-volume secondary locking connector for use in an on-board charger controller as described in claim 3, characterized in that, The adjacent first ribs cooperate to form a first limiting groove. The first limiting groove has a first groove segment and a second groove segment. The first groove segment is located between the second groove segment and the inner wall of the slot. The first groove segment is flared from the inner wall of the slot to the second groove segment. The second groove segment is equidistant from the first groove segment to the free end of the first rib.

5. The small-volume secondary locking connector for use in an on-board charger controller as described in claim 3, characterized in that, The second reinforcing part further includes a second rib groove and a second rib. The inner wall of the slot along the other side of the second direction is provided with a plurality of second ribs. The plurality of second ribs are spaced apart along the first direction. The second housing is provided with a plurality of second rib grooves along the other side of the second direction. The plurality of second ribs and the plurality of second rib grooves are inserted into each other to enhance the structural strength of the first housing when the second housing is inserted into the slot. The adjacent second ribs cooperate to form a second limiting groove, which is flared from the inner wall of the slot to the free end of the second rib.

6. The small-volume secondary locking connector for use in an on-board charger controller as described in claim 1, characterized in that, The mounting part includes two sets of fasteners, which are respectively located on both sides of the second housing along the first direction. The mounting body includes a base and two side portions respectively located on both sides of the base. Each side portion is provided with a fastening engagement component, and the fasteners engage with the fastening engagement component. And / or, one side of the first housing in the thickness direction is used to connect the circuit board; or, the side of the first housing away from the insertion of the second housing is used to connect the circuit board.

7. The small-volume secondary locking connector for use in an on-board charger controller as described in claim 1, characterized in that, The first housing has prefabricated grooves on both sides along the first direction, and reinforcing plates are provided in the prefabricated grooves. The reinforcing plates are used to fix the circuit board on which the first housing is installed. And / or, the second housing further includes a latching portion, which is disposed on one side of the insertion portion along the first direction, and the latching portion engages with the inner wall of the slot on one side along the first direction.

8. The small-volume secondary locking connector for use in an on-board charger controller as described in claim 7, characterized in that, The buckle includes a rib and a protrusion. The rib is elastically connected to the insertion part. The rib has a protrusion on the side opposite to the insertion part. The inner wall of the slot has a slot that engages with the protrusion. A deformation space is provided between the rib and the insertion part. The rib is used to move toward the deformation space under the action of external force so that the protrusion can be disengaged from the slot.

9. The small-volume secondary locking connector for use in an on-board charger controller as described in claim 8, characterized in that, The second housing further includes an end plate portion, which is located on the side of the mounting portion away from the insertion portion. The rib is elastically connected to the end plate portion, and the side of the rib facing the mounting portion is set at an obtuse angle to the end plate portion. And / or, the second housing is provided with a third mating rib on one side along the second direction, the third mating rib is connected to the rib strip, the inner wall of the slot is provided with a stop rib, the stop rib is limited to the side of the third mating rib away from the rib strip.

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