A connector kit

Abstract

The application discloses a connector kit, relates to the technical field of connectors, and comprises a connector assembly and a board seat assembly. The connector assembly comprises a connector shell, a busbar and a female terminal. The connector shell is internally provided with a limiting groove, the busbar is clamped in the limiting groove, one end of the busbar is connected with the female terminal, and the other end of the busbar is connected with a wire. The application adopts a rigid busbar as an intermediate connecting piece between the wire and the terminal, significantly improves the mechanical strength and anti-dragging capacity of a connecting point, solves the technical pain point that the wire is easily damaged due to stress in a traditional structure, and is high in reliability. The connector assembly and the board seat assembly are reliably locked through locking elastic sheets and locking sockets. The application can also integrate signal terminals to form a hybrid connector, and provides a detachable suction cover which is compatible with different needle diameters and is used for assisting in automatic patch production, so that the application flexibility and production convenience of the product are enhanced. The application is stable in structure, simple in assembly, and is particularly suitable for application environments limited in space.

Description

Technical Field

[0001] This application relates to the field of connector technology, and in particular to a connector kit. Background Technology

[0002] Connectors are indispensable components in electronic devices, used to achieve electrical connections between different circuits, modules, or devices. As electronic products continue to develop towards miniaturization, integration, and multifunctionality, application scenarios are placing increasingly higher demands on the size, power density, and space adaptability of connectors.

[0003] In certain specific application scenarios, such as in compact equipment chassis, battery packs or controllers of new energy vehicles, the installation and routing of connectors face significant challenges. Existing connector products often suffer from the following problems: large size and low space utilization; traditional connectors are typically bulky, occupying too much space in confined areas and limiting the layout of other components; limited power and signal specifications; many existing connectors can only transmit fixed power or specific types of signals, requiring multiple different types of connectors when devices need multiple power levels or simultaneous power and signal transmission; fixed lead-out direction and poor flexibility; traditional connectors usually have fixed lead-out directions (e.g., only supporting horizontal or vertical lead-out); insufficient compatibility with automated production; in large-scale automated production, board-side connectors typically require pick-and-place machines, but existing board-side connectors have diverse structures, their tops may not have a suitable plane for pick-and-place machine nozzles, or their pin (terminal) specifications may vary, making it difficult to use a unified pick-and-place cover for compatibility, thus reducing production efficiency and increasing manufacturing costs.

[0004] Therefore, the market urgently needs a new type of connector solution that is not only small in size and able to adapt to stringent space constraints, but also capable of supporting various power requirements, providing flexible cable routing, and being compatible with automated production processes, in order to meet the application needs of modern electronic devices for efficient and reliable connections in confined spaces. Utility Model Content

[0005] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a connector kit that can improve the reliability of the connector and simplify the wiring arrangement inside the connector.

[0006] A connector kit according to an embodiment of this application includes: a connector assembly, the connector assembly including a connector housing, a busbar, and female terminals. The connector housing has at least one limiting groove, the busbar corresponds to each limiting groove and is snapped into the corresponding limiting groove, the female terminals correspond to each busbar, one end of the busbar is connected to one end of the female terminal, and the other end of the busbar is fixedly connected to several wires. The connector housing has a socket on its insertion surface, the socket corresponding to each female terminal and coaxially arranged with the socket and the corresponding female terminal; and a base assembly, the base assembly including a base plate and a through-hole terminal, the through-hole terminal passing through the base plate and corresponding to each female terminal. One end of the through-hole terminal is used for soldering to an external device, and when the connector assembly and the base assembly are engaged, the other end of the through-hole terminal is inserted into the corresponding female terminal.

[0007] The connector kit according to the embodiments of this application has at least the following beneficial effects: The connector kit of this application, by setting a connector assembly and a base assembly, allows the other end of the through-hole terminal to be inserted into the corresponding female terminal when the connector assembly and base assembly are engaged, thus realizing the connection between the connector assembly and the base assembly. Specifically, by setting a busbar in the connector assembly and engaging it within a limiting groove on the connector housing, the connection between the busbar and the female terminal is made more stable, preventing damage to the female terminal due to external forces on the wires and improving the reliability of the connector. Simultaneously, by fixing the wires to the busbar, the internal wiring harness arrangement of the connector is simplified, making the internal structure of the connector more compact. This allows for assembly in confined spaces and enables flexible adjustment of the wire exit direction according to the needs of actual application scenarios, improving the applicability of the connector.

[0008] According to some embodiments of this application, the connector housing is provided with a locking spring on a first adjacent surface adjacent to the insertion surface, and the plate base assembly is provided with a locking slot at a position corresponding to the locking spring. One end of the locking spring is fixedly connected to the connector housing, and the other end is provided with a locking claw pointing to the locking slot. When the connector assembly and the plate base assembly are engaged, the locking claw is engaged in the locking slot.

[0009] According to some embodiments of this application, the wire passes through either the second adjacent surface or the third adjacent surface of the connector housing and is connected to the busbar, wherein the second adjacent surface is adjacent to both the plug surface and the first adjacent surface, and the third adjacent surface is opposite to the second adjacent surface; The busbar includes a first connecting part, a second connecting part, and a third connecting part. One end of the first connecting part is connected to the female terminal, and the other end is connected to one end of the second connecting part. The second connecting part is perpendicular to the first connecting part, and the other end of the second connecting part is connected to one end of the third connecting part. The third connecting part is perpendicular to both the second and first connecting parts, and the other end of the third connecting part is connected to the wire. The first connecting part, the second connecting part, and the third connecting part are connected end to end to form a U-shaped structure. The connector housing has two busbars, namely a first busbar and a second busbar. The connector housing has a partition between the first busbar and the second busbar. The third connection part of the first busbar is located inside the opening of the U-shaped structure of the second busbar, and the first connection part of the second busbar is located inside the opening of the U-shaped structure of the first busbar.

[0010] According to some embodiments of this application, the wire passes through the fourth adjacent surface of the connector housing and is connected to the busbar. The fourth adjacent surface is adjacent to the plug surface and is opposite to the first adjacent surface. The connector assembly further includes a first inner housing, the outer contour of which is adapted to the inner contour of the connector housing. The first inner housing is provided with a plurality of second retaining cylinders corresponding one-to-one with the female terminal. The female terminal is inserted into the corresponding second retaining cylinder. When the first inner housing is nested in the connector housing, the second retaining cylinder is coaxially arranged with the corresponding socket. The system includes two busbars, a third busbar and a fourth busbar. Each busbar comprises a main body and a terminal portion perpendicular to each other. One end of the main body is connected to the wire, and the other end is connected to one end of the terminal portion. The other end of the terminal portion is fixedly connected to the female terminal. The main bodies of the third and fourth busbars are respectively located on opposite sides of the first inner housing. The terminal portions of both the third and fourth busbars are located on the side of the first inner housing opposite to the socket. When the first inner housing is nested within the connector housing, the outer wall of the first inner housing and the inner wall of the connector housing jointly press against the third and fourth busbars to fix them in place.

[0011] According to some embodiments of this application, the first inner housing is further provided with a first retaining spring, one end of the first retaining spring is connected to the first inner housing, and the other end is provided with a first retaining claw pointing towards the connector housing. The inner side of the connector housing is provided with a first retaining slot at a position corresponding to the first retaining claw. When the first inner housing is nested in the connector housing, the first retaining claw is engaged in the first retaining slot.

[0012] According to some embodiments of this application, the wire passes through the connector housing from the first opposing surface and is connected to the busbar. The first opposing surface is opposite to the insertion surface. The connector assembly further includes a second inner housing. The second inner housing has a plurality of retaining grooves corresponding to the busbar. The busbar is fitted into the retaining grooves. The second inner housing is also provided with a second retaining spring. One end of the second retaining spring is connected to the second inner housing, and the other end is provided with a second retaining claw pointing towards the connector housing. The inner side of the connector housing is provided with a second retaining slot at a position corresponding to the second retaining claw. When the second inner housing is nested within the connector housing, the second retaining claw is fitted into the second retaining slot.

[0013] According to some embodiments of this application, the connector housing is provided with a first retaining cylinder corresponding to the female terminal, the first retaining cylinder is coaxially arranged with the corresponding socket, and the female terminal is inserted into the corresponding first retaining cylinder.

[0014] According to some embodiments of this application, it also includes a suction cap assembly, the suction cap assembly including a cap body and a plurality of sleeve modules connected to the bottom of the cap body, the sleeve modules corresponding one-to-one with the through-hole terminals, the top of the cap body having a planar structure for cooperating with the nozzle of an external pick-and-place machine, and the sleeve modules for inserting into the corresponding through-hole terminals; The sleeve module includes an outer sleeve, and at least one inner sleeve is coaxially disposed inside the outer sleeve. The length of the inner sleeve is less than that of the outer sleeve. The outer sleeve is used to accommodate a straight-through terminal of a first diameter specification, and the inner sleeve is used to accommodate a straight-through terminal of a second diameter specification that is smaller than the first diameter specification.

[0015] According to some embodiments of this application, the connector assembly further includes at least one first signal terminal, which is snapped into the connector housing. The board base assembly further includes a plurality of second signal terminals, which are disposed through the board base. The second signal terminals correspond one-to-one with the first signal terminals. When the connector assembly and the board base assembly are engaged, one end of the first signal terminal is inserted into one end of the corresponding second signal terminal. Attached Figure Description

[0016] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of the plate base assembly in the embodiment; Figure 2 This is a schematic diagram of the structure of the first type of connector assembly in the embodiment; Figure 3 This is a schematic diagram of the structure of the first type of connector assembly in the embodiment from another perspective; Figure 4 This is a schematic diagram of the structure of the first type of connector assembly after the connector housing is hidden, as shown in the embodiment. Figure 5 This is a schematic diagram of the structure of the first type of connector assembly after the connector housing is hidden, as shown in the embodiment. Figure 6 This is a schematic diagram of the first type of connector assembly in the embodiment, with the connector housing hidden, from another perspective. Figure 7 This is a schematic diagram of the first type of connector assembly in another outgoing wire direction according to the embodiment; Figure 8 This is a schematic diagram of the structure of the second type of connector assembly in the embodiment; Figure 9 This is a schematic diagram of the second type of connector assembly from another perspective in the embodiment; Figure 10 This is a schematic diagram of the second type of connector assembly after the connector housing is hidden, as shown in the embodiment. Figure 11 This is an exploded structural diagram of the second type of connector assembly after the connector housing is hidden, as shown in the embodiment. Figure 12 This is a schematic diagram of the structure of the third type of connector assembly in the embodiment; Figure 13 This is an exploded structural diagram of the third type of connector assembly in the embodiment; Figure 14 This is a schematic diagram of the connector housing structure of the third type of connector assembly in the embodiment; Figure 15 This is a schematic diagram of the structure of the suction cap assembly in an embodiment; Figure 16 This is a schematic diagram of the structure when the straight-insertion terminal of the first diameter specification is inserted into the suction cap assembly in the embodiment; Figure 17 This is a schematic diagram of the structure when the straight-insertion terminal of the second diameter specification is inserted into the suction cap assembly in the embodiment; Figure 18 This is a schematic diagram of the structure of the drawing component in the embodiment.

[0017] Figure label: Connector assembly 100; connector housing 110; mating surface 111; socket 111a; locking spring 112; first retaining sleeve 113; busbar 120; first connecting part 121; second connecting part 122; third connecting part 123; main body part 124; terminal part 125; first inner housing 130; second retaining sleeve 131; first retaining spring 132; second inner housing 140; female terminal 150; first signal terminal 160; pull-out member 170; plate base assembly 200; base plate 210; straight insertion terminal 220; second signal terminal 230; locking bayonet 240; suction cover assembly 300; cover body 310; sleeve module 320. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0022] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] like Figure 2 and Figure 3 As shown, the embodiment of the connector kit includes a connector assembly 100 and a base assembly 200. For example, the connector assembly 100 includes an integrally injection-molded connector housing 110. The connector housing 110 defines an internal space for accommodating other components and has a mating surface 111 for mating with the base assembly 200. Inside the connector housing 110, at least one retaining groove is provided. In some embodiments, the retaining groove may be through-hole or a blind groove, its shape and size matching that of the subsequently assembled bus 120.

[0024] like Figure 4 As shown, the connector assembly 100 also includes a bus 120 and a female terminal 150. Both the bus 120 and the female terminal 150 are made of a conductive metal material (e.g., copper alloy). The bus 120 corresponds one-to-one with the aforementioned limiting grooves and is fixed within the corresponding limiting grooves by a snap-fit ​​mechanism. This design precisely defines the position of the bus 120 within the connector housing 110, resulting in a very stable structure. The female terminal 150 corresponds one-to-one with the bus 120, and one end of the female terminal 150 is securely connected to one end of the bus 120 by welding or crimping. Figure 3As shown, the insertion surface 111 has insertion holes 111a corresponding to the female terminals 150, and the insertion holes 111a are coaxially arranged with the axis of the female terminals 150 to ensure that the terminals of the board base assembly 200 can be smoothly inserted. Several wires are fixedly connected to the other end of the bus 120. The external wires are connected to the internal female terminals 150 through this intermediate component, the bus 120. Compared to directly soldering flexible wires to the small female terminals 150, the advantages of the bus 120 in this embodiment are: firstly, the bus 120 has a certain rigidity and is stably fixed in the limiting groove, which greatly enhances the mechanical strength of the connection point, effectively preventing the connection point from loosening or the female terminals 150 from being damaged due to external forces such as dragging or vibration of the wires, significantly improving the reliability and durability of the connector. Secondly, by first connecting multiple wires to the busbar 120 and then installing the busbar 120 into the housing, the assembly process is simplified and production efficiency is improved, especially in connectors where space is limited.

[0025] like Figure 1 As shown, the board holder assembly 200 includes a base plate 210 and through-hole terminals 220. The base plate 210 is typically made of an insulating material, such as engineering plastic, and has through holes for the through-hole terminals 220 to pass through. The through-hole terminals 220 are pin-shaped male terminals, and their number and arrangement correspond one-to-one with the female terminals 150 in the connector assembly 100. The through-hole terminals 220 pass through the base plate 210, with one end extending from the mating surface of the base plate 210 for electrical connection with external devices (such as circuit boards) via soldering or other methods; the other end is ready to be inserted into the female terminals 150 of the connector assembly 100.

[0026] When the connector assembly 100 and the base assembly 200 are fastened together, the insertion surface 111 of the connector assembly 100 is opposite to the mating surface of the base assembly 200. The operator applies pressure so that the straight insertion terminal 220 of the base assembly 200 is accurately inserted into the corresponding female terminal 150 through the insertion hole 111a of the connector housing 110, thereby realizing electrical conduction between the two components.

[0027] Understandably, to further improve the stability and reliability of the connection and prevent detachment under vibration or accidental pulling, the connector kit of the embodiment also provides a preferred locking structure. For example, such as... Figure 2 and Figure 3As shown, on the connector housing 110, a locking spring 112 is integrally formed or additionally assembled on the first abutment surface adjacent to the mating surface 111. This locking spring 112 has a certain elasticity; one end is fixed to the connector housing 110, and the other end is a free end, protruding to form a locking claw pointing towards the board base assembly 200. Correspondingly, on the side wall of the board base assembly 200, at a position corresponding to the locking spring 112, a recessed locking slot 240 is provided. When the connector assembly 100 and the board base assembly 200 approach each other and engage, the locking claw at the end of the locking spring 112 will first contact the side wall of the board base assembly 200. As they continue to approach, the locking claw will slide along the side wall of the board base assembly 200 and deflect outwards due to the elastic deformation of the spring. When the two components are fully engaged, the locking pawl moves precisely to the locking slot 240. Due to the elastic restoring force of the spring clip, the locking pawl quickly "springs" in and locks into the locking slot 240, usually accompanied by a crisp "click," providing the operator with clear feedback that the installation is complete. This cooperation between the spring clip and the slot provides a strong axial locking for the two components, ensuring the long-term reliability of the connection.

[0028] Understandably, in order to adapt to different application scenarios and wiring requirements, especially for use in environments where space is limited in the height or depth direction, the wire exit direction and internal structure of the connector assembly 100 have been specially designed.

[0029] In some embodiments, the lead-out direction of the wires is designed to be lateral. For clarity of orientation, as mentioned above, the surface of the connector housing 110 that mates with the base assembly 200 is defined herein as the "mating surface 111". Here, the side with the locking spring 112 is defined herein as the "first adjacent surface". Figure 2 and Figure 7 As shown, based on this, the wires can pass through either the "second adjacent surface" or the "third adjacent surface" into the connector housing 110 and connect to the busbar 120. For ease of description, this connector assembly with this wire exit direction is referred to as a "first type connector assembly". The "second adjacent surface" is the side face adjacent to both the mating surface 111 and the first adjacent surface; while the "third adjacent surface" is positioned opposite the "second adjacent surface". This side-exit design allows the wire harness to be routed to the left or right after the connector is engaged with the base assembly 200, greatly reducing the overall space required for the connector in the mating direction. This is particularly suitable for compact devices where there is insufficient space behind the installation location to accommodate wire harness extension.

[0030] To complement the aforementioned lateral cabling structure and further optimize internal space utilization, in some embodiments, the busbar 120 of the second type of connector assembly employs a special three-dimensional construction. For example, such as... Figure 5 and Figure 6 As shown, each busbar 120 includes a first connecting portion 121, a second connecting portion 122, and a third connecting portion 123. These three portions are perpendicular to each other and connected end to end, forming a three-dimensional "U-shaped" or "C-shaped" structure. More specifically, one end of the first connecting portion 121 is directly connected to the female terminal 150 (e.g., by welding), ensuring a stable electrical connection. Its orientation is perpendicular to the axis of the female terminal 150, i.e., parallel to the insertion surface 111. The second connecting portion 122 is connected to the other end of the first connecting portion 121 and is perpendicular to it. The second connecting portion 122 forms the bottom of the U-shaped structure, and its orientation is approximately perpendicular to the insertion surface 111. The third connecting portion 123 is connected to the other end of the second connecting portion 122 and is perpendicular to both the first and second connecting portions 122. The end of the third connecting portion 123 is used to connect external wires. In some embodiments, two such buses 120 are typically provided, referred to herein as the first bus 120 and the second bus 120, for transmitting different electrical signals or power, respectively. To arrange these two U-shaped buses 120 side-by-side within a very small space, the bus 120 in the embodiments employs a "nested" or "interlocked" layout. For example, inside the connector housing 110, an insulating barrier is provided between the first bus 120 and the second bus 120. This barrier serves as physical and electrical isolation, preventing accidental contact between the two buses 120 that could lead to a short circuit. During assembly, the two buses 120 are oriented in opposite directions and nested within each other. Specifically, the third connecting portion 123 of the first bus 120 (i.e., the portion connecting the wires) extends precisely into the opening of the U-shaped structure of the second bus 120; simultaneously, the first connecting portion 121 of the second bus 120 (i.e., the portion connecting the female terminal 150) also extends into the opening of the U-shaped structure of the first bus 120. Through this interlocking and nested layout, the two three-dimensional bus 120s are tightly integrated, greatly reducing the lateral space they occupy within the connector housing 110, allowing the overall size of the connector to be made smaller, thereby achieving higher density connections.

[0031] In other embodiments, such as Figure 8 and Figure 9As shown, the wire passes through the "fourth adjacent surface" of the connector housing 110 and connects to the busbar 120. According to the previous definition, this "fourth adjacent surface" is opposite to the "first adjacent surface" where the locking spring 112 is located. For ease of description, this connector assembly with this wire exit direction is referred to as a "second type connector assembly". This design places the wire exit on the side opposite to the main locking structure, providing convenience for certain circuit board layouts or wiring inside the chassis.

[0032] Understandably, to accommodate the aforementioned cable routing direction, the second type of connector assembly 100 in this embodiment may be provided with a first inner housing 130. For example, as... Figure 10 and Figure 11 As shown, the first inner housing 130 can be understood as the skeleton of a pre-assembled module, whose outer contour is adapted to the inner contour of the connector housing 110 so that it can be smoothly nested inside. The first inner housing 130 is provided with a plurality of "second retaining sleeves 131", the number and position of which correspond one-to-one with the female terminals 150. During assembly, the female terminals 150 are pre-inserted and fixed within these second retaining sleeves 131. Subsequently, when the entire first inner housing 130 module is installed into the connector housing 110, these second retaining sleeves 131 ensure that the female terminals 150 inside are precisely coaxially aligned with the insertion holes 111a on the insertion surface 111 of the connector housing 110, ensuring smooth insertion and removal.

[0033] Accordingly, the bus 120 in the embodiment can also adopt different designs. For example, such as Figure 10 and Figure 11 As shown, there are two busbars 120, referred to herein as the third busbar 120 and the fourth busbar 120. These two busbars 120 have the same structure, each including a main body 124 and a terminal portion 125 perpendicular to each other, forming an "L" shape. One end of the main body 124 is used to connect a wire, and the other end is connected to one end of the terminal portion 125. The other end of the terminal portion 125 is fixedly connected to a female terminal 150.

[0034] Accordingly, the assembly and fixing method of the second type of connector assembly 100 in embodiment 2 can also adopt a different design than that described above. First, the third bus 120 and the fourth bus 120 are respectively placed on two opposite outer side walls of the first inner housing 130, so that their main body 124 extends along the side wall of the inner housing. Their terminal portions 125 are bent over and uniformly set on the side of the first inner housing 130 opposite to the socket 111a. At this time, the wire, bus 120, female terminal 150 and the first inner housing 130 together form a pre-assembly module. Then, this pre-assembly module is pushed into the connector housing 110 as a whole. During the pushing process, the outer side wall of the first inner housing 130 and the inner side wall of the connector housing 110 will jointly squeeze the main body 124 of the bus 120 located between them. The frictional force generated by this squeezing will firmly fix the third bus 120 and the fourth bus 120 in the connector housing 110. This design eliminates the need for additional machining of slots or limiting structures on the housing to secure the busbar 120, simplifying mold design and manufacturing while providing a highly reliable securing effect. To ensure that the first inner housing 130 does not loosen or accidentally come out after being inserted into the connector housing 110, a corresponding locking structure can be further designed. For example, such as... Figure 10 and Figure 11 As shown, one or more elastic first retaining springs 132 are integrally formed on the outer wall of the first inner housing 130. Each spring has a first retaining claw protruding outward at its free end. Correspondingly, a recessed first retaining slot is provided on the inner wall of the connector housing 110 at a position corresponding to the first retaining claw. When the first inner housing 130 is pushed into the connector housing 110, the retaining claw on the first retaining spring 132 first contacts the inner wall of the housing and retracts inward due to elasticity. When the inner housing is pushed to its final predetermined position, the retaining claw reaches the position of the retaining slot, and the spring recovers its elasticity, causing the retaining claw to engage in the slot. This snap-fit ​​structure securely locks the first inner housing 130 within the connector housing 110, preventing displacement due to vibration or other reasons during subsequent use, thereby ensuring the long-term stability of the entire connector's internal structure.

[0035] In other implementations, such as Figure 12 and Figure 13As shown, the conductors of connector assembly 100 pass through the "first opposing surface" of connector housing 110 and connect to busbar 120. Here, the "first opposing surface" refers to the surface opposite the "mating surface 111," which is the rear surface of the connector. For ease of description, this connector assembly 100 with this type of lead-out direction is referred to as a "third-type connector assembly." This "rear lead-out" or "straight lead-out" design is very suitable for situations where there is ample rear installation space, allowing the wiring harness to extend directly to the rear, facilitating neat and direct wiring.

[0036] To achieve this rear-out wiring structure for the third type of connector assembly and simplify assembly, in some embodiments, such as Figure 13 As shown, a second inner housing 140 is provided inside the connector housing 110. The second inner housing 140 can be an independently injection-molded insulating component, whose main function is to serve as a support and positioning skeleton for the bus 120. Several "retention grooves" corresponding to the shape and number of the bus 120 are provided on the second inner housing 140. These retention grooves are pre-designed recesses or channels whose contours precisely match the cross-section of the bus 120. During assembly, the worker first inserts or presses the bus 120 (with pre-connected wires and female terminals 150) one by one into the corresponding retention grooves on the second inner housing 140. Through the interference fit or snap-fit ​​structure between the groove and the bus 120, the bus 120 is stably fixed to the second inner housing 140, forming a robust and easy-to-operate pre-assembled module. This pre-assembled module is then pushed into the housing as a whole from the rear opening (i.e., the first opposing surface) of the connector housing 110.

[0037] To ensure that the second inner housing 140, containing the core components, is securely locked after being inserted into the connector housing 110, preventing it from loosening or dislodging due to cable dragging or equipment vibration, in some embodiments, one or more resilient second retaining springs are integrally formed. The free end of each spring extends into a second retaining claw pointing towards the inner wall of the connector housing 110. Correspondingly, a recessed second retaining slot is machined on the inner wall of the connector housing 110 at a position that engages with the second retaining claw. When the second inner housing 140, containing the busbar 120, is pushed into the connector housing 110, the retaining claw on the second retaining spring first contacts the inner wall of the housing. When the second inner housing 140 is fully pushed into the predetermined assembly position, the retaining claw moves precisely above the second retaining slot. At this point, under the restoring force of the spring itself, the retaining claw instantly springs in and securely engages within the retaining slot, thereby ensuring a stable connection between the second inner housing 140 and the connector housing 110.

[0038] Understandably, to enhance the stability of the connector's internal components and the reliability of the connection, in addition to providing a second retaining sleeve on the first inner housing 130 as described above, in some embodiments that do not include a first inner housing 130, a first retaining sleeve 113 can also be directly provided inside the connector housing 110. For example, such as... Figure 14 As shown, inside the connector housing 110, immediately behind each socket 111a, a first retaining sleeve 113 is integrally injection molded. The number of these first retaining sleeves 113 corresponds one-to-one with the number of female terminals 150, and their axes are strictly coaxial with the axis of the corresponding socket 111a. The inner diameter of the sleeve matches the outer diameter of the female terminal 150 to ensure a tight fit. During the assembly of the connector assembly 100, when the busbar 120 with female terminals 150 or the second inner housing 140 module with female terminals 150 is inserted into the connector housing 110, the front end of each female terminal 150 is inserted into the corresponding first retaining sleeve 113. By setting the first retaining sleeve 113, even if the busbar 120 has been initially fixed by the limiting groove or retaining groove, the first retaining sleeve 113 provides the final precise alignment at the insertion interface, forcing the female terminal 150 to be calibrated to the ideal position that is completely concentric with the socket 111a, ensuring that the straight-through terminal 220 can be smoothly inserted without deviation when docking with the board base assembly 200, thus improving the smoothness and reliability of insertion and removal.

[0039] Understandably, in the electronics manufacturing industry, pick-and-place machines are core equipment for achieving automated production. Pick-and-place machines use a suction nozzle at their end to employ negative pressure (vacuum) to pick up electronic components from a tray and then precisely place them onto preset pads on a printed circuit board. This process requires the surface on which the component is picked up to be a flat, airtight plane so that the suction nozzle can form an effective vacuum seal, thereby stably picking up and transporting the component. However, the board mount assembly 200 of the embodiment, characterized by having one or more rows of protruding metal through-hole terminals 220 (i.e., pins), has an inherently uneven top structure, making it impossible for the pick-and-place machine's suction nozzle to directly and effectively pick it up.

[0040] To address this challenge, in some embodiments, the connector kit also includes a pick-up cap assembly 300. The pick-up cap assembly 300 is essentially a temporary "adapter" or "auxiliary tooling" whose sole purpose is to provide a standard, pick-upable, flat surface for the board holder assembly 200 during the automated placement phase. For example, as... Figure 15As shown, the pick-up cover assembly 300 includes a cover body 310 and several sleeve modules 320 extending downward from the bottom of the cover body 310. The key feature of the cover body 310 is that its top has a complete planar structure with optimized dimensions and surface roughness; this planar surface is specifically prepared for the pick-up surface of the pick-up machine's nozzle. The number and spatial arrangement of the sleeve modules correspond one-to-one with the through-hole terminals 220 on the board holder assembly 200. Before placement, the operator or automated equipment installs the pick-up cover assembly 300 onto the board holder assembly 200 by inserting each sleeve module 320 into its corresponding through-hole terminal 220, temporarily and securely fixing the pick-up cover to the board holder assembly 200. After the placement and reflow soldering processes are completed, i.e., the through-hole terminals 220 are permanently soldered onto the PCB, the pick-up cover assembly 300's function is complete, and it can be manually or with tools removed from the board holder assembly 200 and discarded.

[0041] To further enhance the versatility and economy of the sample cap, the sample cap assembly 300 of the embodiment features an innovative design to the internal structure of the sleeve module 320. In some embodiments, the connector product line may include through-hole terminals 220 of different specifications; for example, power terminals for transmitting high current have a larger diameter, while terminals for transmitting signals have a smaller diameter. Designing a dedicated sample cap for each different diameter terminal would undoubtedly increase mold costs and inventory management complexity. The sleeve module 320 of the embodiment solves this problem through a coaxial nesting structure. For example, as... Figure 15 As shown, each sleeve module 320 includes an outer sleeve and an inner sleeve coaxially disposed within it. The outer sleeve has a larger inner diameter to accommodate a thicker through-hole terminal 220 of a first diameter specification; the inner sleeve has a smaller inner diameter to accommodate a thinner through-hole terminal 220 of a second diameter specification (smaller than the first diameter specification). The length of the inner sleeve is shorter than that of the outer sleeve, ensuring sufficient insertion depth for stability when accommodating thinner terminals, while the shorter inner sleeve does not interfere with the insertion of thicker terminals. Through this design, the same suction cap assembly 300 can be compatible with at least two different diameter through-hole terminals 220. Figure 16 and Figure 17 As shown, when used in a board holder assembly 200 with coarse terminals, the terminals are housed in an outer sleeve; when used in a board holder assembly 200 with fine terminals, the terminals are housed in an inner sleeve. This design greatly enhances the versatility of the suction cap, allowing manufacturers to use one suction cap to serve multiple models in a product line, significantly reducing production and logistics costs.

[0042] Understandably, in some embodiments, such as Figure 1 and Figure 6As shown, in the connector assembly 100 (i.e., the plug side), in addition to the original bus 120 and female terminal 150, at least one first signal terminal 160 is added. Unlike the high-current bus 120, the first signal terminal 160 is typically smaller and more precise, used to transmit weak electrical signals. Its installation method is also more flexible; it is not integrated with the bus 120, but rather acts as an independent component, directly snapped into a dedicated slot within the connector housing 110 using its own structural features (such as barbs, spring clips, etc.). Correspondingly, in the socket assembly 200 (i.e., the receptacle side), a second signal terminal 230 corresponding to the first signal terminal 160 is also added. This second signal terminal 230 is similar to the through-hole terminal 220 of the power supply section, also passing through and fixed to the insulating socket. One end extends out, ready to be plugged into the first signal terminal 160; the other end is also a pin, used to be soldered onto the circuit board via surface mount or through-hole mounting technology, connecting to the signal processing unit of the motherboard. When the connector assembly 100 and the board base assembly 200 are engaged, not only are the female terminals 150 of the power supply section plugged into the through-hole terminals 220, but the first signal terminal 160 and the second signal terminal 230 of the signal section are also aligned and plugged in simultaneously, thereby establishing one or more stable and independent signal transmission channels.

[0043] In some embodiments, to facilitate user removal of the connector assembly 100 from the base assembly 200, particularly in situations where connector installation space is limited and it is difficult to pull it out directly by hand, the connector assembly 100 is further provided with a pull member 170. For example, such as... Figure 18 The pull member 170 is specifically a pull strap with a certain degree of toughness and strength. Both ends of the pull strap are fixed to the side walls of the connector housing 110, forming a loop or arched structure that allows fingers to pass through or pinch it. Of course, in other embodiments, the material and structure of the pull member 170 can be varied; for example, it can be a pull rope made of high-strength fibers or an injection-molded one-piece pull ring, as long as it can achieve the purpose of assisting in the application of force to separate the connector. When it is necessary to separate the connector assembly 100 from the board base assembly 200, the user only needs to pull the pull member 170 upwards or outwards. The force is then transmitted to the connector housing 110 through the pull member 170, thereby moving the entire connector assembly 100 along the insertion / removal direction, easily pulling the connector assembly 100 out of the board base assembly 200. This design greatly improves the ease of use and operability of the connector, and is especially suitable for high-density or compact electronic devices.

[0044] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A connector kit, characterized in that, include: A connector assembly (100) includes a connector housing (110), a busbar (120), and female terminals (150). The connector housing (110) has at least one limiting groove. The busbar (120) corresponds to the limiting groove and is engaged in the corresponding limiting groove. The female terminals (150) correspond to the busbar (120). One end of the busbar (120) is connected to one end of the female terminal (150). The other end of the busbar (120) is fixedly connected to several wires. The connector housing (110) has a socket (111a) on its insertion surface (111). The socket (111a) corresponds to the female terminal (150) and is coaxially arranged with the corresponding female terminal (150). The board base assembly (200) includes a base plate (210) and a through-hole terminal (220). The through-hole terminal (220) passes through the base plate (210) and corresponds one-to-one with the female terminal (150). One end of the through-hole terminal (220) is used for soldering to an external device. When the connector assembly (100) is engaged with the board base assembly (200), the other end of the through-hole terminal (220) is inserted into the corresponding female terminal (150).

2. The connector kit according to claim 1, characterized in that, The connector housing (110) has a locking spring (112) on a first adjacent surface adjacent to the insertion surface (111). The plate base assembly (200) has a locking slot (240) at a position corresponding to the locking spring (112). One end of the locking spring (112) is fixedly connected to the connector housing (110), and the other end has a locking claw pointing to the locking slot (240). When the connector assembly (100) and the plate base assembly (200) are engaged, the locking claw is engaged in the locking slot (240).

3. The connector kit according to claim 2, characterized in that, The wire passes through either the second or third adjacent surface of the connector housing (110) into the connector housing (110) and is connected to the bus (120). The second adjacent surface is adjacent to both the plug surface (111) and the first adjacent surface, and the third adjacent surface is opposite to the second adjacent surface. The busbar (120) includes a first connecting part (121), a second connecting part (122), and a third connecting part (123). One end of the first connecting part (121) is connected to the female terminal (150), and the other end is connected to one end of the second connecting part (122). The second connecting part (122) is perpendicular to the first connecting part (121), and the other end of the second connecting part (122) is connected to one end of the third connecting part (123). The third connecting part (123) is perpendicular to the second connecting part (122) and the first connecting part (121), and the other end of the third connecting part (123) is connected to the wire. The first connecting part (121), the second connecting part (122), and the third connecting part (123) are connected end to end to form a U-shaped structure. The busbar (120) is provided in two parts, namely a first busbar (120) and a second busbar (120). The connector housing (110) is provided with a partition between the first busbar (120) and the second busbar (120). The third connecting part (123) of the first busbar (120) is located inside the opening of the U-shaped structure of the second busbar (120), and the first connecting part (121) of the second busbar (120) is located inside the opening of the U-shaped structure of the first busbar (120).

4. The connector kit according to claim 2, characterized in that, The wire passes through the fourth adjacent surface of the connector housing (110) and is connected to the bus (120). The fourth adjacent surface is adjacent to the plug surface (111) and opposite to the first adjacent surface. The connector assembly (100) further includes a first inner housing (130), the outer contour of which is adapted to the inner contour of the connector housing (110). The first inner housing (130) is provided with a plurality of second retaining cylinders (131) corresponding one-to-one with the female terminal (150). The female terminal (150) is inserted into the corresponding second retaining cylinder (131). When the first inner housing (130) is nested in the connector housing (110), the second retaining cylinder (131) is coaxially arranged with the corresponding socket (111a). The busbar (120) comprises two components, namely a third busbar (120) and a fourth busbar (120). Both the third busbar (120) and the fourth busbar (120) include mutually perpendicular main body portions (124) and terminal portions (125). One end of the main body portion (124) is connected to the wire, and the other end is connected to one end of the terminal portion (125). The other end of the terminal portion (125) is fixedly connected to the female terminal (150). The main body portions (124) of the third busbar (120) and the fourth busbar (120) are respectively disposed on the first... On opposite sides of the inner housing (130), the terminal portions (125) of the third bus (120) and the fourth bus (120) are both located on the side of the first inner housing (130) opposite to the socket (111a); when the first inner housing (130) is nested in the connector housing (110), the outer sidewall of the first inner housing (130) and the inner sidewall of the connector housing (110) jointly press the third bus (120) and the fourth bus (120) to fix the third bus (120) and the fourth bus (120).

5. The connector kit according to claim 4, characterized in that, The first inner housing (130) is also provided with a first retaining spring (132). One end of the first retaining spring (132) is connected to the first inner housing (130), and the other end is provided with a first retaining claw pointing towards the connector housing (110). The inner side of the connector housing (110) is provided with a first retaining slot at a position corresponding to the first retaining claw. When the first inner housing (130) is nested in the connector housing (110), the first retaining claw is engaged in the first retaining slot.

6. The connector kit according to claim 2, characterized in that, The wire passes through the first opposing surface of the connector housing (110) and connects to the busbar (120). The first opposing surface is opposite to the insertion surface (111). The connector assembly (100) also includes a second inner housing (140). The second inner housing (140) is provided with a plurality of retaining grooves corresponding to the busbar (120). The busbar (120) is fitted into the retaining grooves. The second inner housing (140) is also provided with a second retaining spring. One end of the second retaining spring is connected to the second inner housing (140), and the other end is provided with a second retaining claw pointing towards the connector housing (110). The inner side of the connector housing (110) is provided with a second retaining slot at a position corresponding to the second retaining claw. When the second inner housing (140) is nested in the connector housing (110), the second retaining claw is fitted into the second retaining slot.

7. The connector kit according to claim 3 or 6, characterized in that, The connector housing (110) is provided with a first retaining cylinder (113) corresponding to the female terminal (150). The first retaining cylinder (113) is coaxially arranged with the corresponding socket (111a). The female terminal (150) is inserted into the corresponding first retaining cylinder (113).

8. The connector kit according to claim 3, 4, or 6, characterized in that, It also includes a suction cap assembly (300), which includes a cap body (310) and a plurality of sleeve modules (320) connected to the bottom of the cap body (310). The sleeve modules (320) correspond one-to-one with the through-hole terminals (220). The top of the cap body (310) has a planar structure for cooperating with the nozzle of an external pick-and-place machine. The sleeve modules (320) are used to be inserted into the corresponding through-hole terminals (220). The sleeve module (320) includes an outer sleeve, and at least one inner sleeve is coaxially disposed inside the outer sleeve. The length of the inner sleeve is less than that of the outer sleeve. The outer sleeve is used to accommodate a straight-through terminal (220) of a first diameter specification, and the inner sleeve is used to accommodate a straight-through terminal (220) of a second diameter specification that is smaller than that of the first diameter specification.

9. The connector kit according to claim 3, 4, or 6, characterized in that, The connector assembly (100) further includes at least one first signal terminal (160), which is snapped into the connector housing (110). The board base assembly (200) further includes a plurality of second signal terminals (230), which are disposed in the board base. The second signal terminals (230) correspond one-to-one with the first signal terminals (160). When the connector assembly (100) and the board base assembly (200) are engaged, one end of the first signal terminal (160) is inserted into one end of the corresponding second signal terminal (230).

10. The connector kit according to claim 1, characterized in that, The connector assembly (100) is further provided with a pull member (170), which is connected to the connector housing (110) to assist in separating the connector assembly (100) from the base assembly (200).

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