Electrical connector assembly

Abstract

This application provides an electrical connector assembly. The electrical connector assembly includes an insulating housing and a first electrical connector, a second electrical connector, and a third electrical connector disposed on the insulating housing. The first electrical connector contains multiple conductive terminals, and the third electrical connector contains multiple contact terminals. Each conductive terminal includes a body and a first connecting portion, a second connecting portion, and a third connecting portion extending outward from the body. The first connecting portion of the conductive terminal serves as the first mating portion of the first electrical connector, the second connecting portion serves as the second mating portion of the second electrical connector, and the third connecting portion is electrically connected to the contact terminals of the third electrical connector. The electrical connector assembly has a compact structure and is suitable for space-constrained applications.

Description

Technical Field

[0001] This invention relates to the field of electrical connector technology, and more specifically to an electrical connector assembly. Prior Technology

[0002] With the rapid development of electric bicycles, electric vehicles, and other electric devices, electrical connectors are being used more and more widely in these devices. As a critical electrical connection component, the performance of electrical connectors directly affects the operational stability and safety of the entire device.

[0003] Chinese Patent No. CN217823441U discloses an electrical connector, including a female connector and a male connector. The female connector includes a female connector housing and a retaining ring. The female connector housing has a female connector square body with a female connector square groove at the front. The female connector square body has multiple retaining ring mounting grooves located behind the female connector square groove. One retaining ring is installed in each retaining ring mounting groove. The male connector includes a male connector housing, a male connector sealing ring, a PIN pin mounting seat, and PIN pins. Multiple PIN pins are installed inside the PIN pin mounting seat.

[0004] However, the aforementioned electrical connectors only have two connecting parts located on the front and rear sides, respectively, enabling electrical connection only between the male and female connectors. They cannot achieve electrical connection with a third electrical connector (such as a vehicle control unit), which hinders the miniaturization and multi-functionality of the device. Therefore, there is still room for improvement in the structural compactness and ease of manufacturing of electrical connector assemblies. Summary of the Invention

[0005] Based on this, the present invention provides an electrical connector assembly with a relatively compact structure, suitable for application scenarios where space is limited and multiple electrical connectors are required.

[0006] According to some embodiments, the present invention provides an electrical connector assembly, including an insulating housing and a first electrical connector, a second electrical connector, and a third electrical connector disposed on the insulating housing; wherein, the first electrical connector has a plurality of conductive terminals, and the third electrical connector has a plurality of contact terminals; each conductive terminal includes a body, and a first connecting portion, a second connecting portion, and a third connecting portion extending outward from the body;

[0007] Wherein, the first connecting portion of the conductive terminal serves as the first mating portion of the first electrical connector, the second connecting portion of the conductive terminal serves as the second mating portion of the second electrical connector, and the third connecting portion of the conductive terminal is electrically connected to the contact terminal of the third electrical connector.

[0008] In the above embodiments, by integrating the first, second, and third connecting portions onto the same conductive terminal, the overall structure of the electrical connector assembly becomes more compact. Compared to traditional electrical connector assembly designs, the above embodiments can electrically connect three electrical connectors simultaneously, reducing the size of the electrical connector assembly and making it more suitable for space-constrained applications, such as electric bicycles and electric vehicles. Furthermore, the single-body design of the conductive terminal in the above embodiments reduces the number of connection points between separate terminals, lowering the risk of electrical failures due to poor contact. The design of the first, second, and third connecting portions extending outward from the same body enhances the reliability and stability of the electrical connector assembly during use.

[0009] In some embodiments, the first connecting portion of the conductive terminal extends outward from the body along a first direction, the second connecting portion extends outward from the body along a second direction, and the third connecting portion extends outward from the body along a third direction; wherein any two of the first direction, the second direction, and the third direction are perpendicular to each other.

[0010] In the above embodiments, by extending the first, second, and third connecting portions of the conductive terminals in different directions, the space occupied can be effectively reduced, making the structure of the electrical connector assembly more compact. This not only improves the applicability of the electrical connector assembly in small spaces but also makes its installation and wiring more convenient.

[0011] In some embodiments, each of the conductive terminals is formed by stamping and bending a metal sheet, and the first connecting portions of the plurality of conductive terminals are arranged in three rows, including two flat first connecting portions located on both sides and a plurality of needle-shaped first connecting portions located in the middle.

[0012] Conductive terminals formed by stamping and bending thin metal sheets can not only improve production efficiency but also reduce manufacturing costs. In the above embodiment, by arranging the first connecting parts in three rows, with the two side first connecting parts being flat plates used as high-current power terminals and the middle first connecting part being needle-shaped used as a low-current signal terminal, the conductive terminal layout can be more compact, thus saving considerable space.

[0013] In some embodiments, the third connection portions of the plurality of conductive terminals are arranged in a row.

[0014] The above embodiment arranges the third connecting portions of the conductive terminals in a row, which makes it easier to connect the third connecting portions to the contact terminals of the third electrical connector. This arrangement also facilitates automated assembly, helps improve connection efficiency, and reduces labor costs.

[0015] In some embodiments, the insulating housing includes a first side and a second side opposite to each other, the first electrical connector is disposed on the first side of the insulating housing, and the second electrical connector is disposed on the second side of the insulating housing; the first connection portion of the conductive terminal extends toward the first side of the insulating housing, while the second connection portion extends toward the second side of the insulating housing.

[0016] In the above embodiment, the first electrical connector and the second electrical connector are respectively disposed on both sides of the insulating housing, and the first connection part and the second connection part of the conductive terminal extend toward the corresponding side of the insulating housing, which can achieve a reasonable allocation of space and make the entire electrical connector assembly more compact.

[0017] In some embodiments, the electrical connector assembly further includes a conductive structure; a plurality of contact terminals of the third electrical connector are electrically connected one-to-one with a third connection portion of the plurality of conductive terminals via the conductive structure.

[0018] The above embodiments, by adding conductive structures, ensure the stability and reliability of the internal circuitry of the electrical connector by electrically connecting the contact terminals of the third electrical connector to the third connecting portions of the conductive terminals in a one-to-one correspondence. The conductive structures also provide a longer electrical connection path, facilitating the arrangement of third electrical connectors that are spaced far apart.

[0019] In some embodiments, the contact terminals of the third electrical connector extend toward a first side of the insulating housing; the third connection portion of the conductive terminal extends perpendicular to the first side and the second side.

[0020] The above embodiments further optimize the internal layout of the electrical connector assembly, reducing its overall thickness and making it more suitable for space-constrained applications. Simultaneously, the vertically extending design of these embodiments also helps increase the mechanical strength of the connection points, improving the reliability of the electrical connector assembly.

[0021] In some embodiments, the conductive structure includes a plurality of metal busbars, a flexible circuit board, or a printed circuit board; one end of the conductive structure is electrically connected to the conductive terminal of the first electrical connector, and the other end is electrically connected to the contact terminal of the third electrical connector.

[0022] In some embodiments, the insulating housing is injection molded, and the insulating housing fixes the plurality of contact terminals and the plurality of conductive terminals thereon; the insulating housing forms a mating wall portion protruding toward a first side on the outer periphery of the first connection portion of the plurality of conductive terminals, and forms a plurality of protruding positioning protrusions on a second side.

[0023] In the above embodiments, multiple contact terminals and conductive terminals are fixed to the insulating housing formed by insert molding. This not only simplifies the manufacturing process and improves production efficiency, but also ensures the structural stability and reliability of the electrical connector assembly. The insulating housing has a mating wall protruding towards the first side and a positioning protrusion protruding towards the second side, which facilitates smooth insertion with another mating electrical connector.

[0024] In some embodiments, the insulating housing has a receiving cavity inside the mating wall portion for accommodating the first connection portion of the conductive terminal; the insulating housing is provided with a sealing element for sealing the gap between the conductive terminal and the receiving cavity.

[0025] In the above embodiments, the use of sealing elements effectively prevents the intrusion of external environmental factors such as dust and moisture, protecting the internal structure of the electrical connector assembly and extending its service life. Simultaneously, the design of the sealing elements can also improve the protection level of the electrical connector assembly, enhancing its suitability for harsh environments.

[0026] In some embodiments, the third connection portion of the conductive terminal is electrically connected to the contact terminal of the third electrical connector via a circuit board.

[0027] In the above embodiments, the third connection part is electrically connected to the contact terminals of the third electrical connector via the circuit board. This fully utilizes the conductive channels and wiring structure of the circuit board, making the overall structure of the electrical connector assembly more compact and helping to reduce internal wiring length and space occupation, thereby further improving integration. Furthermore, thanks to the wiring capabilities of the circuit board, the electrical connector assembly can flexibly connect the third connection part to more electrical connectors or other functional modules according to application requirements, thereby achieving greater functional expansion to meet the working needs of different application scenarios.

[0028] In some embodiments, the circuit board is a printed circuit board, and the end of the third connecting portion away from the main body is needle-shaped; a plurality of first conductive through holes are formed on the printed circuit board; the end of the third connecting portion is inserted into the first conductive through hole of the printed circuit board.

[0029] In the above embodiments, the end of the third connector is designed as a needle and tightly fitted with the first conductive via on the printed circuit board, which provides higher connection stability, prevents loosening, and ensures a long-term stable electrical connection. The connection method between the needle-shaped end and the first conductive via is simpler and easier to implement. Compared with laser welding, it does not require high-precision alignment and complex equipment, and is more efficient, which helps to reduce production difficulty and improve assembly efficiency.

[0030] In some embodiments, the first connecting portions of the plurality of conductive terminals are arranged in three rows, including two flat first connecting portions located on both sides and a plurality of needle-shaped first connecting portions located in the middle; the second connecting portions of the plurality of conductive terminals are flat.

[0031] In the above embodiment, the first connecting portions of the multiple conductive terminals are arranged in three rows. The first connecting portions on both sides are designed as flat plates to meet the requirements of high current transmission, while the first connecting portion in the middle is designed as a needle to be suitable for low current transmission. Combining different terminal shapes in this way not only makes the conductive terminal layout more compact, but also saves space and achieves efficient space utilization.

[0032] In some embodiments, the third electrical connector includes a mating housing, and a plurality of contact terminals are fixed inside the mating housing; the tail of each contact terminal is correspondingly connected to the circuit board.

[0033] In some embodiments, the insulating housing has a receiving groove; the third connection portion of the plurality of conductive terminals is disposed in the receiving groove, and the receiving groove is filled with a third sealant.

[0034] In some embodiments, a first electrical connector interface is provided on a first side of the insulating housing; the first connection portion of the plurality of conductive terminals is disposed within the first electrical connector interface, and the first electrical connector interface is filled with a first sealant.

[0035] In the above embodiments, by filling the interface with sealant, the tiny gaps between the connecting parts of the conductive terminals and the corresponding interface can be effectively filled, forming an additional waterproof barrier. This helps to further improve the waterproof performance of the electrical connector assembly, ensuring its reliable operation in humid or underwater environments to meet higher levels of waterproof standards. Furthermore, the sealant filling process is relatively simple and easy to implement, and therefore will not adversely affect high production efficiency or production costs.

[0036] In some embodiments, the insulating housing is further provided with a second electrical connector interface on a second side opposite to the first side, and a sealing ring disposed on the second electrical connector interface; the sealing ring has a plurality of through holes, and the second connection portions of the plurality of conductive terminals are correspondingly disposed in the through holes.

[0037] In some embodiments, the sealing ring is injection molded onto the insulating housing.

[0038] In the above embodiments, the sealing ring is injection molded onto the insulating shell. This one-piece molding method allows the entire electrical connector assembly to achieve a higher level of waterproofing, ensuring reliable operation even in harsh, humid environments or after short-term immersion in water. This effectively prevents electrical faults caused by moisture intrusion, guaranteeing the safety and stability of the equipment. Traditional multi-stage injection molding processes are prone to leaving gaps, creating potential leakage channels. Injection molding, however, creates a continuous, seamless sealing interface, significantly reducing the risk of leakage and enhancing waterproofing reliability. Furthermore, because the sealing ring is injection molded onto the insulating shell, it does not detach, reducing the risk of connection instability or decreased waterproofing performance due to sealing ring detachment.

[0039] In other embodiments, the outer edge of the second electrical connector interface is provided with a fitting groove; the sealing ring is provided with at least one retaining protrusion on the side facing the insulating housing, the retaining protrusion being embedded in the fitting groove, so that the sealing ring is fixed to the second electrical connector interface.

[0040] The above embodiments provide an mountable sealing ring design. The sealing ring is fixed to the insulating housing through the engagement of the retaining protrusion and the fitting groove, ensuring that the sealing ring will not detach during long-term use. Compared to injection molding, the above embodiments also simplify the manufacturing process and help reduce production costs. Simple Explanation of the Diagram

[0041] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figures 1 and 2 are three-dimensional structural schematic diagrams of the electrical connector assembly according to the first embodiment of the present invention; Figure 3 is a top view of the electrical connector assembly shown in Figure 1; Figure 4 is a cross-sectional view along direction AA in Figure 3; Figure 5 is a bottom view of the electrical connector assembly shown in Figure 1; Figures 6 to 8 are three-dimensional electrical connection structure diagrams of conductive terminals and contact terminals in the electrical connector assembly of the first embodiment of the present invention; Figure 9 is a three-dimensional structural diagram of the conductive terminal; Figures 10 and 11 are schematic diagrams of the first connecting portion being a sheet-shaped conductive terminal in the electrical connector assembly of the first embodiment of the present invention; Figures 12 and 13 are schematic diagrams of the conductive terminal of the first connecting part being a pin-shaped connecting post in the electrical connector assembly of the first embodiment of the present invention; Figures 14 and 15 are three-dimensional structural diagrams of the first cover body in the electrical connector assembly of the first embodiment of the present invention; Figures 16 and 17 are three-dimensional structural diagrams of the second cover in the electrical connector assembly of the first embodiment of the present invention; Figures 18 and 19 are three-dimensional structural diagrams of the electrical connector assembly according to the first embodiment of the present invention, showing the conductive terminals after being attached to the first cover body. Figures 20 and 21 are three-dimensional structural diagrams of the sealing element in the electrical connector assembly of the first embodiment of the present invention; Figure 22 is a three-dimensional structural diagram of the metal busbars in the electrical connector assembly of the first embodiment of the present invention, wherein the connecting portion between the metal busbars has not yet been cut off; Figure 23 is a top view of the conductive terminal and the metal busbar of the present invention, wherein the connecting portion of the metal busbar has been cut off; Figure 24 is a bottom view of the conductive terminal and the metal busbar of the present invention, wherein the connecting portion of the metal busbar has not yet been cut off; Figure 25 is a front view of the first electrical connector in the electrical connector assembly according to the first embodiment of the present invention; Figure 26 is a front view of the second electrical connector in the electrical connector assembly of the first embodiment of the present invention; Figure 27 is a front view of the third electrical connector in the electrical connector assembly of the first embodiment of the present invention; Figure 28 is a schematic diagram of the electrical connections of each connecting part in the electrical connector assembly according to the first embodiment of the present invention; Figure 29 is a three-dimensional structural diagram of the contact terminals in the electrical connector assembly according to the first embodiment of the present invention; Figure 30 is a three-dimensional structural schematic diagram of the electrical connector assembly according to the second embodiment of the present invention; Figure 31 is a top view of the electrical connector assembly shown in Figure 30; Figure 32 is a bottom view of the electrical connector assembly shown in Figure 30; Figure 33 is a cross-sectional view along the BB direction in Figure 31; Figure 34 is an exploded view of the electrical connector assembly shown in Figure 30 from the first angle; Figure 35 is an exploded view of the electrical connector assembly shown in Figure 30 from a second angle; Figure 36 is a three-dimensional structural diagram of the conductive terminals in the electrical connector assembly according to the second embodiment of the present invention; Figure 37 is a perspective view of the printed circuit board in the electrical connector assembly according to the second embodiment of the present invention; Figure 38 is a perspective view of the conductive terminals and printed circuit board in the electrical connector assembly according to the second embodiment of the present invention from a first angle; Figure 39 is a perspective view of the conductive terminals and printed circuit board in the electrical connector assembly of the second embodiment of the present invention from a second angle; Figure 40 is a perspective structural diagram of the mating housing in the electrical connector assembly according to the second embodiment of the present invention; Figure 41 is a perspective structural diagram of the insulating shell in the electrical connector assembly according to the second embodiment of the present invention; Figure 42 is a three-dimensional structural diagram of the sealing ring in the electrical connector assembly according to the second embodiment of the present invention; Figure 43 is a perspective view of the electrical connector assembly from a first angle according to the second embodiment of the present invention, wherein another sealing ring assembled on the insulating housing is removed; Figure 44 is a perspective view of the electrical connector assembly from a second angle according to the second embodiment of the present invention, wherein the insulating shell is slightly different; Figure 45 is a perspective structural view of another sealing ring at a first angle in the electrical connector assembly of the second embodiment of the present invention; and Figure 46 is a perspective view of another sealing ring at a second angle in the electrical connector assembly of the second embodiment of the present invention. Implementation

[0042] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0043] Although terms such as "upper," "lower," and "between" may be used in this specification to describe different exemplary features and elements of the invention, these terms are used herein only for convenience, such as the orientation of the examples shown in the drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the invention. Furthermore, the drawings provided in this embodiment are only schematic illustrations of the basic concept of the invention. Although the drawings only show components relevant to the invention and are not drawn according to the actual number, shape, and size of components in implementation, the type, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the component layout may also be more complex.

[0044] This invention provides an electrical connector assembly with a compact structure, suitable for space-constrained applications. Details will be elaborated in subsequent embodiments.

[0045] Please refer to Figures 1 to 29 below to understand the first embodiment of the present invention.

[0046] Please refer to Figures 1 to 5. In some preferred examples, the electrical connector assembly may specifically include an insulating housing 3 and a first electrical connector 21, a second electrical connector 22 and a third electrical connector 23 disposed on the insulating housing 3.

[0047] The first electrical connector 21 may be provided with a plurality of conductive terminals 1 as shown in Figures 6 to 8, and the third electrical connector 23 may be provided with a plurality of contact terminals 231 as shown in Figures 6 to 8. Each conductive terminal 1 may specifically include a body 10, and a first connecting portion 11, a second connecting portion 12 and a third connecting portion 13 extending outward from the body 10.

[0048] The first connecting portion 11 of the conductive terminal 1 can serve as the first mating portion of the first electrical connector 21, the second connecting portion 12 of the conductive terminal 1 can serve as the second mating portion of the second electrical connector 22, and the third connecting portion 13 of the conductive terminal 1 can be electrically connected to the contact terminal 231 of the third electrical connector 23.

[0049] The aforementioned electrical connector assembly integrates the first connecting portion 11, the second connecting portion 12, and the third connecting portion 13 onto the same main body 10 via conductive terminals 1, making the overall structure of the electrical connector assembly more compact. Traditional electrical connector assemblies typically include multiple separate terminals, resulting in a large number of terminals, leading to a complex overall structure and larger size. Compared to traditional electrical connector assembly designs, the above embodiment reduces the size of the electrical connector assembly, making it more suitable for space-constrained applications, such as electric bicycles and electric vehicles.

[0050] In the aforementioned electrical connector assembly, the single-body design of the conductive terminal 1 reduces the number of connection points between the separate terminals, lowering the risk of electrical failures due to poor contact. The design of the first connecting part 11, the second connecting part 12, and the third connecting part 13 extending outward from the same body 10 makes the connection more stable, which helps to enhance the reliability and stability of the electrical connector assembly during use.

[0051] Furthermore, by integrating the three connecting parts onto a single body 10, it is possible to electrically connect three different electrical connectors simultaneously, reducing assembly difficulty and time costs.

[0052] For example, as shown in Figures 9 to 13, the first connecting portion 11 can extend outward from the main body 10 along a first direction, the second connecting portion 12 can extend outward from the main body 10 along a second direction, and the third connecting portion 13 can extend outward from the main body 10 along a third direction.

[0053] Wherein, any two of the first direction, second direction, and third direction are different. For example, the first direction can be represented by the positive X direction in Figures 9 to 13, the second direction can be represented by the negative X direction in Figures 9 to 13, and the third direction can be represented by the Y direction in Figures 9 to 13.

[0054] In the above embodiment, the first connecting portion 11, the second connecting portion 12, and the third connecting portion 13 of the conductive terminal 1 extend in different directions. This effectively reduces space occupancy and makes the electrical connector assembly more compact. This not only improves the applicability of the electrical connector assembly in small spaces but also makes its installation and wiring more convenient.

[0055] For example, any two of the aforementioned first, second, and third directions are perpendicular to each other. This perpendicular arrangement increases the isolation between different connection points, reduces signal interference, and improves the performance and stability of the electrical connector assembly.

[0056] As exemplarily shown in Figures 9 to 13, the conductive terminal 1 may further include a first bend 14 and a second bend 15.

[0057] In the electrical connector assembly provided in the above embodiments, the first connecting part 11 is connected to the main body 10 via the first bending part 14, and the second connecting part 12 is connected to the main body 10 via the second bending part 15.

[0058] In the electrical connector assembly provided in the above embodiments, the bending structure of the first connecting part 11 and the second connecting part 12 is formed on the main body 10, so that the first connecting part 11 and the second connecting part 12 are closely distributed, which significantly reduces the space occupied by the conductive terminal 1, which is conducive to the miniaturization design of the electrical connector assembly and makes it more suitable for space-constrained applications.

[0059] For example, each conductive terminal 1 can be formed by stamping and bending a metal sheet. Using a metal sheet to form the conductive terminal 1 can not only improve production efficiency and reduce manufacturing costs, but also help ensure the accuracy and consistency of the conductive terminal 1.

[0060] Please refer to Figure 6. For example, the first connection portions 11 of the plurality of conductive terminals 1 can be arranged in three rows, including two first connection portions 11 in the form of plates located on both sides and a plurality of first connection portions 11 in the form of needles located in the middle.

[0061] For example, as shown in Figure 6, among the six spaced-apart conductive terminals 1, the first connecting portions 11 of the two outermost conductive terminals 1 extend upwards and are wide and flat, which can be used as power terminals for high current transmission (as shown in Figures 10 and 11). The first connecting portions 11 of the plurality of conductive terminals 1 spaced between the aforementioned two flat conductive terminals 1 are needle-shaped and extend vertically upwards, which can be used as signal terminals for transmitting signals (as shown in Figures 12 and 13). This arrangement of the first connecting portions 11 of the six conductive terminals 1 allows for a more compact layout of the conductive terminals 1, thereby saving space.

[0062] As shown in Figure 7, the second connecting parts 12 of the two outer conductive terminals 1 are downwardly extended and are in the form of a wide flat plate, while the second connecting parts 12 of the four conductive terminals 1 arranged in the middle are in the form of a relatively narrow flat plate, arranged in two rows, with two in each row.

[0063] Please continue to refer to Figures 12 and 13. By way of example, the conductive terminal 1 may also include a third bend 16. The third connection portion 13 may be connected to the main body 10 via the third bend 16.

[0064] In the electrical connector assembly provided in the above embodiments, the third connecting part 13 is connected to the main body 10 via the third bending part 16. The conductive terminal 1 forms a multi-layer structure through multiple bending, which makes it more compact in a limited space, further reducing the space occupied by the conductive terminal 1. This is beneficial to the miniaturization design of the electrical connector assembly, making it more suitable for space-constrained applications.

[0065] This invention does not specifically limit the material of the conductive terminal 1. As an example, the material of the conductive terminal 1 may include metallic and / or alloy materials, such as copper alloys. Using copper alloys to prepare the conductive terminal 1 can give it excellent conductivity and good mechanical strength.

[0066] In this embodiment of the invention, the first electrical connector 21 may be a power unit connector (e.g., a main power connector), the second electrical connector 22 may be a battery unit connector (also called a battery connector), and the third electrical connector 23 may be a vehicle control unit (VCU) connector, but is not limited thereto. Correspondingly, the first connecting portion 11 may serve as the mating portion of the power unit connector, i.e., the aforementioned first mating portion; the second connecting portion 12 may serve as the mating portion of the battery unit connector, i.e., the aforementioned second mating portion; and the third connecting portion 13 may be electrically connected to the contact terminal of the corresponding vehicle control unit connector.

[0067] This embodiment of the invention does not specifically limit the material of the contact terminal 231 of the third electrical connector 23. Exemplarily, the material of the contact terminal 231 may include metallic materials and / or alloy materials.

[0068] Please continue referring to Figures 1 to 5. Exemplarily, the insulating housing 3 may include a first side and a second side opposite to each other. Exemplarily, the first side of the insulating housing 3 may be the top surface of the insulating housing 3, and the second side of the insulating housing 3 may be the bottom surface of the insulating housing 3.

[0069] In the electrical connector assembly of the above embodiments, the first electrical connector 21 can be disposed on the first side of the insulating housing 3, and the second electrical connector 22 can be disposed on the second side of the insulating housing 3. The first connecting portion 11 of the conductive terminal 1 extends toward the first side of the insulating housing 3, as can be understood in conjunction with Figures 1 to 6; while the second connecting portion 12 extends toward the second side of the insulating housing 3, as can be understood in conjunction with Figures 1 to 6. Exemplarily, the first connecting portion 11 can extend upward from the top surface of the insulating housing 3, and the second connecting portion 12 can extend downward from the bottom surface of the insulating housing 3.

[0070] In the above embodiment, the first electrical connector 21 and the second electrical connector 22 are respectively disposed on the upper and lower sides of the insulating housing 3, and the first connecting part 11 and the second connecting part 12 of the conductive terminal 1 extend toward the corresponding side of the insulating housing 3, which can achieve a reasonable allocation of space and make the entire electrical connector assembly more compact.

[0071] As an example, the third connecting part 13 can extend horizontally and be arranged in a row.

[0072] The above embodiment arranges the third connecting portions 13 of the conductive terminals 1 in a row, which makes it easier for the third connecting portions 13 to connect to the contact terminals of the third electrical connector 23, further improving the connection reliability of the electrical connector assembly. This arrangement also facilitates automated assembly, helps improve connection efficiency, and reduces labor costs.

[0073] Please refer to Figure 6. For example, the electrical connector assembly may also include a conductive structure.

[0074] In the electrical connector assembly of the above embodiment, the plurality of contact terminals 231 of the third electrical connector 23 can be electrically connected to the third connection portion 13 of the plurality of conductive terminals 1 in a one-to-one correspondence via a conductive structure.

[0075] In the above embodiments, by adding a conductive structure, a longer electrical connection path can be provided, thereby facilitating the arrangement of the widely spaced third electrical connectors 23. The conductive structure provides a stable electrical connection path, reducing the number of connection points and thus lowering the risk of poor contact and electrical faults in the electrical connector assembly.

[0076] Referring to Figure 6, by way of example, the contact terminal 231 of the third electrical connector 23 can extend toward the first side of the insulating housing 3. That is, the contact terminal 231 of the third electrical connector 23 extends in the same direction as the first connecting portion 11. Furthermore, the third connecting portion 13 of the conductive terminal 1 can extend perpendicular to both the first and second sides.

[0077] The above embodiments further optimize the internal layout of the electrical connector assembly, reducing its overall thickness and making it more suitable for space-constrained applications. Simultaneously, the vertically extending design of these embodiments also helps increase the mechanical strength of the connection points, improving the reliability of the electrical connector assembly.

[0078] Please refer to Figure 6. The embodiments of the present invention do not specifically limit the implementation of the conductive structure. As an example, the conductive structure may include, but is not limited to, one or more of flexible circuit boards, printed circuit boards, or metal busbars.

[0079] For example, one end of the conductive structure is electrically connected to the conductive terminal 1 of the first connector, while the other end is electrically connected to the contact terminal 231 of the third electrical connector 23.

[0080] As an example, as shown in Figure 6, the conductive structure may include a bent section 40, a longitudinal extension section 41, and a transverse extension section 42; specifically, the longitudinal extension section 41, the bent section 40, and the transverse extension section 42 are connected sequentially.

[0081] For example, the insulating housing 3 can be manufactured by one or more injection molding processes, and multiple contact terminals 231 and multiple conductive terminals 1 can be fixed on the insulating housing 3 by insert molding process.

[0082] For example, the insulating housing 3 may form a mating wall portion 3A protruding toward the first side on the outer periphery of the first connection portion 11 of the plurality of conductive terminals 1, and may form a plurality of protruding positioning protrusions 3B on the second side.

[0083] In the above embodiment, the insulating housing 3 has a mating wall 3A protruding towards the first side and a positioning protrusion 3B protruding towards the second side, which facilitates smooth insertion with another mating electrical connector. This prevents misalignment and loosening of the conductive terminal 1 and the contact terminal 231, further improving the connection stability of the electrical connector assembly.

[0084] For example, the insulating shell 3 may be formed by combining a first cover 301 and a second cover 302.

[0085] The manufacturing process of the aforementioned insulating shell 3 can specifically include a primary insert molding stage and a secondary molding stage. In the primary insert molding stage, a first covering 301, as shown in Figures 14 and 15, is created by embedding conductive terminals 1 and contact terminals 231 and then injecting molten plastic. A conductive structure is then attached and welded to the conductive terminals 1 and contact terminals 231, resulting in the assembly shown in Figures 18 and 19. The secondary molding stage then forms a second covering 302, as shown in Figures 16 and 17, on the outside of the first covering 301, resulting in the electrical connector assembly shown in Figures 1 and 2. After the secondary molding, a sealing and protective material (e.g., a flexible or more protective material, such as flexible plastic or rubber) can be used to cover or fill specific parts of the base structure, thereby providing better waterproof, dustproof, and shockproof performance.

[0086] The embodiments of the present invention do not specifically limit the constituent materials of the insulating shell 3. As an example, the insulating shell 3 can be made of engineering plastic materials, such as poly(hexamethylene terephthalamide) (PA6T), polybutylene terephthalate (PBT), etc.

[0087] As an example, the insulating housing 3 may have a receiving cavity 31 inside the mating wall portion 3A for accommodating the first connecting portion 11 of the conductive terminal 1.

[0088] For example, referring to Figures 20 and 21, a sealing element 32 may be provided on the insulating housing 3. By providing the sealing element 32, the intrusion of external environmental factors such as dust and moisture can be effectively prevented, protecting the internal structure of the electrical connector assembly and extending its service life. At the same time, the design of the sealing element 32 can also improve the protection level of the electrical connector assembly and enhance its applicability in harsh environments.

[0089] As an example, a sealant can be used to form the sealing element 32. The sealant may include, but is not limited to, UV adhesive and silicone. Referring to Figure 2 and also to Figures 20 and 21, the sealing element 32 can be disposed at the bottom of the insulating housing 3. The sealing element 32 has at least one through hole 321 for the second connecting portion 12 to pass through and for sealing the second connecting portion 12.

[0090] When the electrical connector assembly of the above embodiment is mated with another electrical connector (not shown), the mating point can be sealed by the sealing element 32.

[0091] In this embodiment of the invention, the number of conductive terminals 1 in the electrical connector assembly is not specifically limited. The number of conductive terminals 1 can be adaptively adjusted according to the specifications of the first electrical connector 21, the second electrical connector 22 and the third electrical connector 23.

[0092] As shown in Figure 6, six conductive terminals 1 are spaced apart, and each conductive terminal 1 has three connecting parts (first connecting part 11, second connecting part 12, and third connecting part 13). The third electrical connector 23 has six contact terminals 231, which can be electrically connected to each of the third connecting parts 13 of the six conductive terminals 1 through a conductive structure.

[0093] It is understood that, since the plurality of contact terminals 231 of the exemplary third electrical connector 23 are electrically connected to the third connection portion 13 of the plurality of conductive terminals 1 via a conductive structure, the form of the conductive structure can be adapted to the number of conductive terminals 1.

[0094] For example, as shown in Figures 22 to 24, the conductive structure may include six metal busbars 4, each of which can be connected to one of the six contact terminals 231. Specifically, the six metal busbars 4 can be connected to a metal strip through connecting portions 45. After welding, the connecting portions 45 are cut off to obtain six independent metal busbars 4.

[0095] The above can be understood in conjunction with Figures 6 and 23, wherein the three-dimensional structure of the conductive terminal 1 can be referred to the description of the aforementioned embodiments.

[0096] Referring to Figures 25 to 28, as an example, the first mating portion of the first electrical connector 21 includes six first connecting portions 11a, 11b, 11c, 11d, 11e, and 11f, arranged in three rows. These include two flat first connecting portions 11a and 11b located on either side, and four needle-shaped first connecting portions 11c, 11d, 11e, and 11f arranged in a row in the middle. The second mating portion of the second electrical connector 22 includes six second connecting portions 12a, 12b, 12c, 12d, 12e, and 12f. The third mating portion of the third electrical connector 23 includes six contact terminals 231a, 231b, 231c, 231d, 231e, and 231f arranged circumferentially, which are electrically connected one-to-one with the third connecting portions 13a, 13b, 13c, 13d, 13e, and 13f of the six conductive terminals 1.

[0097] The aforementioned six first connecting parts 11, six second connecting parts 12 and six contact terminals 231 can be electrically connected together via a conductive structure as shown in FIG28.

[0098] The embodiments of the present invention do not specifically limit the form of the contact terminal 231 of the third electrical connector 23. As an example, as shown in FIG29, the contact terminal 231 can be a cylindrical metal terminal with an outer diameter that is thinner at the top and thicker at the bottom.

[0099] Please refer to Figures 30 to 42 below to understand the second embodiment of the present invention.

[0100] Figure 30 is a three-dimensional structural schematic diagram of the electrical connector assembly provided in the second embodiment of the present invention; Figure 31 is a top view of the electrical connector assembly shown in Figure 30; Figure 32 is a bottom view of the electrical connector assembly shown in Figure 30; Figure 33 is a cross-sectional view along the BB direction in Figure 31; Figure 34 is an exploded view of the electrical connector assembly shown in Figure 30 from a first angle; Figure 35 is an exploded view of the electrical connector assembly shown in Figure 30 from a second angle.

[0101] It is worth noting that the main difference between the second embodiment and the first embodiment of the present invention is that the conductive structure is implemented in a different way.

[0102] Please refer to Figures 36 to 39. In the second embodiment, the conductive structure can be a circuit board. This embodiment is illustrated using the printed circuit board (PCB) 50 shown in Figure 36 as an example. In other embodiments, it can also be a flexible circuit board.

[0103] Taking the conductive terminal 1 shown in FIG37 as an example, the third connection portion 13 of the conductive terminal 1 can be electrically connected to a plurality of contact terminals 231 of at least one third electrical connector 23 via the printed circuit board 50 shown in FIG36.

[0104] In the above embodiment, the third connection part 13 is electrically connected to the contact terminal 231 of the third electrical connector 23 through the printed circuit board 50. This makes full use of the conductive channels and wiring structure of the printed circuit board 50, making the overall structure of the electrical connector assembly more compact, which helps to reduce the internal wiring length and space occupation, thereby further improving the integration and providing convenience for assembly.

[0105] Furthermore, thanks to the wiring capabilities of the printed circuit board 50, the electrical connector assembly can flexibly connect the third connection part 13 to one or more more third electrical connectors 23 according to application requirements, or connect to other electrical connectors or functional modules. The third connection part 13 of one or more conductive terminals 1 may not be electrically connected to the contact terminal 231 in the third electrical connector 23, thereby achieving more functional expansion to meet the working requirements of different application scenarios.

[0106] For example, as shown in FIG37, the end of the third connecting portion 13 away from the main body 10 is needle-shaped.

[0107] As shown in Figure 36, a first conductive through hole 51 matching the end of the third connecting part 13 can be opened on the printed circuit board 50; in conjunction with Figures 38 and 39, the end of the third connecting part 13 can be inserted into the first conductive through hole 51 of the printed circuit board 50.

[0108] In the above example, designing the end of the third connection portion 13 as a needle shape and tightly fitting it with the first conductive via 51 on the printed circuit board 50 provides higher connection stability, prevents loosening of the connection, and thus ensures a long-term stable electrical connection. Soldering the needle-shaped end to the first conductive via 51 is simpler and easier to implement. Compared to laser soldering, it eliminates the need for high-precision alignment and complex equipment, and is more efficient, thus reducing production difficulty and improving assembly efficiency.

[0109] For example, the third connection portion 13 of the conductive terminal 1 may extend toward the first side of the insulating housing 3.

[0110] Please refer to Figures 38 and 39. By way of example, the first connection portions 11 of the plurality of conductive terminals 1 can be arranged in three rows, including two first connection portions 11 in the form of plates located on both sides and a plurality of first connection portions 11 in the form of needles located in the middle.

[0111] By designing the first connecting parts 11 on both sides as flat plates to meet the requirements of high current transmission, and designing the first connecting part 11 in the middle as needle-shaped, it is suitable for low current transmission.

[0112] For example, as shown in Figure 38, among the six spaced-apart conductive terminals 1, the first connecting portions 11 of the two outermost conductive terminals 1 extend upwards and are wide and flat, which can be used as power supply terminals for high current transmission. The first connecting portions 11 of the plurality of conductive terminals 1 spaced apart between the aforementioned two conductive terminals 1 are needle-shaped and extend vertically upwards, which can be used as signal terminals for transmitting signals. This arrangement of the first connecting portions 11 of the six conductive terminals 1 allows for a more compact layout of the conductive terminals 1, thereby saving space.

[0113] Please refer to Figures 38 and 39. By way of example, the second connection portion 12 of the plurality of conductive terminals 1 can be in the form of a flat plate in order to meet the requirements of high current transmission.

[0114] For example, as shown in Figure 39, the second connection portion 12 of the two outer conductive terminals 1 extends downward and is a wide flat plate, while the second connection portion 12 of the four conductive terminals 1 arranged in the middle is a relatively narrow flat plate, arranged in two rows, with two in each row.

[0115] In the example above, combining different terminal shapes in this way not only makes the layout of conductive terminal 1 more compact, but also saves space and achieves efficient space utilization.

[0116] Please refer to Figure 38. For example, the third electrical connector 23 may include a mating housing 232 as shown in Figure 40, and a plurality of contact terminals 231 are fixed inside the mating housing 232; the tail of the contact terminals 231 is connected to the printed circuit board 50.

[0117] In the above example, the docking housing 232 and the insulating housing 3 are designed as independent components. Compared with the first embodiment, the second embodiment can integrate the docking housing 232 of the third electrical connector 23 and the contact terminal 231 fixed on the docking housing 232 and solder them to the printed circuit board 50, thereby helping to improve assembly efficiency.

[0118] As shown in Figure 36, a second conductive via 52 matching the contact terminal 231 can also be formed on the printed circuit board 50. The tail of the contact terminal 231 can be connected to the second conductive via 52 of the printed circuit board 50 as shown in Figure 39. For example, the third connection portion 13 of the plurality of conductive terminals 1 can also be connected to the printed circuit board 50 using surface mount technology (SMT).

[0119] Furthermore, the process of forming the insulating shell 3 through a single injection molding process, and simultaneously combining the conductive terminal 1 with the insulating shell 3, simplifies the production process, reduces production steps and equipment usage, and helps to reduce production costs.

[0120] Please continue referring to Figure 34. In some embodiments, the insulating housing 3 has a receiving groove 103. Exemplarily, the insulating housing 3 has a receiving groove 103 that extends peripherally upward (e.g., in the positive direction of the X direction in Figure 34) and is recessed downward in the center. The third connecting portion 13 extends upward from the receiving groove 103, and the printed circuit board 50 and the third electrical connector 23 are mounted downward within the receiving groove 103.

[0121] For example, the third connection portion 13 can be soldered to the printed circuit board 50 by through-hole soldering, thereby ensuring the stability and reliability of its connection. The receiving groove 103 can be filled with a third sealant 63 to provide a waterproof seal for the printed circuit board 50 and the third connection portion 13.

[0122] Please continue referring to Figure 34. In some embodiments, the first side of the insulating housing 3 is further provided with a first electrical connector interface 101. Exemplarily, the first side of the insulating housing 3 is provided with a first electrical connector interface 101 that extends upward around its periphery and is recessed downward in the center.

[0123] The first connection portion 11 of the plurality of conductive terminals 1 is disposed within the first electrical connector interface 101, and the first electrical connector interface 101 may be filled with a first sealant 61.

[0124] In the above example, by filling the first electrical connector interface 101 and the receiving groove 103 with sealant, the tiny gaps between the various connecting parts of the conductive terminal 1 and the insulating shell 3 can be effectively filled, forming an additional waterproof barrier. This helps to further improve the waterproof performance of the electrical connector assembly, ensuring its reliable operation in humid or underwater environments to meet IPX7 or even higher waterproof standards. Furthermore, the sealant filling process is relatively simple and easy to implement, and therefore will not adversely affect high production efficiency or production costs.

[0125] Referring to Figure 35, in some embodiments, the insulating housing 3 further includes a second electrical connector interface 102 on a second side opposite to the first side, and a sealing ring 70 disposed on the second electrical connector interface 102. Exemplarily, the insulating housing 3 further includes a second electrical connector interface 102 extending downwards (e.g., the negative direction of the X direction in Figure 35) on a second side opposite to the first side.

[0126] The sealing ring 70 has through holes 71 that match the second connection portions 12 of the plurality of conductive terminals 1, and the second connection portions 12 of the plurality of conductive terminals 1 are correspondingly inserted into the through holes 71. Exemplarily, the sealing ring 70 is formed on the insulating shell 3 using a plastic material injection molding process.

[0127] In the example above, the sealing ring 70 and the insulating housing 3 are integrally molded, which enables the entire electrical connector assembly to achieve a higher waterproof standard (e.g., IPX7). In addition, it reduces the risk of connection instability or reduced waterproof performance due to the sealing ring 70 falling off.

[0128] As an example, as shown in Figure 41, the outer edge of the second electrical connector interface 102 may be provided with a groove 102a. Correspondingly, as shown in Figure 42, the inner side of the sealing ring 70 is provided with a protrusion 70a.

[0129] After the sealing ring 70 is injection molded, the protrusion 70a on its inner side can be embedded into the groove 102a on the outer edge of the second electrical connector interface 102. The sealing ring 70 is fixed by the embedded fit, thereby ensuring that the sealing ring 70 is firmly fixed on the second electrical connector interface 102 and is not easy to fall off.

[0130] In some other possible examples, the insulating housing 3 shown in Figures 43 and 44 is slightly modified, wherein a mating groove 102b is provided on the outer edge of the interface of the second electrical connector 22. The mating groove 102b may be filled with adhesive.

[0131] Please refer to Figures 45 and 46. In the above example, the slightly modified sealing ring 70 may have four mushroom-shaped retaining protrusions 70b on the side facing the insulating housing 3. The retaining protrusions 70b can be correspondingly embedded in the fitting groove 102b. In this example, the insulating housing 3 can be further glued to the retaining protrusions 70b in the fitting groove 102b, so that the sealing ring 70 is fixedly installed on the interface of the second electrical connector 22.

[0132] Specifically, the embedded protrusion 70b can be wrapped with glue and bonded to the fitting groove 102b. After the glue cures, it hardens to form a hard adhesive layer, which can ensure that the sealing ring 70 is tightly fitted to the insulating shell 3 and will not come off during long-term use.

[0133] The above example provides an adhesive-mounted sealing ring design. The sealing ring 70 is fixedly installed on the insulating housing 3 by adhesive bonding and the fitting and fixing between the retaining protrusion 70b and the fitting groove 102b. The retaining protrusion 70b can keep the sealing ring 70 stable when subjected to external force, prevent the sealing ring 70 from displacing, and thus ensure that the sealing ring 70 will not come off during long-term use.

[0134] Furthermore, the above examples not only further improve sealing performance, but also reduce the reliance on high-precision molds and lower the requirements for parts compared to traditional one-piece molding processes of sealing rings and plastics. Therefore, they can also simplify the manufacturing process and reduce production costs.

[0135] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claim (the claimed technical solution) and its equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.

[0136] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

[0137] 1: Conductive terminal 3: Insulating housing 3A: Connecting wall section 3B: Positioning protrusion 4: Metal busbar 10: Main Body 11: First connecting part 11a: First connecting part 11b: First connecting part 11c: First connecting part 11d: First connecting part 11e: First connecting part 11f: First connecting part 12: Second connecting part 12a: Second connecting part 12b: Second connecting part 12c: Second connecting part 12d: Second connecting part 12e: Second connecting part 12f: Second connecting part 13: Third connecting part 13a: Third connecting part 13b: Third connecting part 13c: Third connecting part 13d: Third connecting part 13e: Third connecting part 13f: Third connecting part 14: First bend 15: Second bend 16: Third bend 21: First electrical connector 22: Second electrical connector 23: Third electrical connector 31: Receiving cavity 32: Sealing element 40: Bending section 41: Longitudinal extension segment 42: Lateral extension segment 45: Connecting parts 50: Printed Circuit Board 51: First conductive via 52: Second conductive via 61: First sealant 63: Third sealant 70: Sealing ring 70a: Protrusion 70b: Retaining protrusion 71: Perforation 101: First electrical connector interface 102: Second electrical connector interface 102a: Groove 102b: Fitting groove 103: Containment Slot 231: Contact terminal 231a: Contact terminal 231b: Contact terminal 231c: Contact terminal 231d: Contact terminal 231e: Contact terminal 231f: Contact terminal 232: Docking shell 301: First Cover Body 302: Second Cover 321: Through hole

Claims

1. An electrical connector assembly, characterized in that it comprises an insulating housing and a first electrical connector, a second electrical connector, and a third electrical connector disposed on the insulating housing; wherein, The first electrical connector has a plurality of conductive terminals, and the third electrical connector has a plurality of contact terminals; each conductive terminal includes a body, and a first connecting portion, a second connecting portion, and a third connecting portion extending outward from the body; wherein, the first connecting portion of the conductive terminal serves as the first mating portion of the first electrical connector, the second connecting portion of the conductive terminal serves as the second mating portion of the second electrical connector, and the third connecting portion of the conductive terminal is electrically connected to the contact terminals of the third electrical connector.

2. The electrical connector assembly according to claim 1, characterized in that a first connecting portion of the conductive terminal extends outward from the body along a first direction, a second connecting portion extends outward from the body along a second direction, and a third connecting portion extends outward from the body along a third direction; wherein, Any two of the first direction, the second direction, and the third direction are perpendicular to each other.

3. The electrical connector assembly according to claim 2, characterized in that each of the conductive terminals is formed by stamping and bending a metal sheet, and the first connecting portions of the plurality of conductive terminals are arranged in three rows, including two flat first connecting portions located on both sides and a plurality of needle-shaped first connecting portions located in the middle.

4. The electrical connector assembly according to claim 2, characterized in that the third connecting portions of the plurality of conductive terminals are arranged in a row.

5. The electrical connector assembly according to any one of claims 1 to 4, characterized in that the insulating housing includes opposing first and second sides, the first electrical connector being disposed on the first side of the insulating housing, and the second electrical connector being disposed on the second side of the insulating housing; the first connection portion of the conductive terminal extends toward the first side of the insulating housing, while the second connection portion extends toward the second side of the insulating housing.

6. The electrical connector assembly according to claim 5, characterized in that it further comprises a conductive structure; the plurality of contact terminals of the third electrical connector are electrically connected one-to-one with the third connection portion of the plurality of conductive terminals via the conductive structure.

7. The electrical connector assembly according to claim 6, characterized in that the contact terminal of the third electrical connector extends toward a first side of the insulating housing; and the third connecting portion of the conductive terminal extends perpendicular to the first side and the second side.

8. The electrical connector assembly according to claim 6, characterized in that the conductive structure is a combination of one or more of a plurality of metal busbars, flexible circuit boards and printed circuit boards; one end of the conductive structure is electrically connected to a third connection portion of the conductive terminal, and the other end is electrically connected to a contact terminal of the third electrical connector.

9. The electrical connector assembly according to claim 5, characterized in that the insulating housing is injection molded, the insulating housing fixing the plurality of contact terminals and the plurality of conductive terminals thereon; the insulating housing forming a mating wall portion protruding toward a first side on the outer periphery of the first connection portion of the plurality of conductive terminals, and forming a plurality of protruding positioning protrusions on a second side.

10. The electrical connector assembly according to claim 9, characterized in that the insulating housing has a receiving cavity within the mating wall portion for receiving the first connecting portion of the conductive terminal; and the insulating housing is provided with a sealing element for sealing the gap between the conductive terminal and the receiving cavity.

11. The electrical connector assembly according to claim 1, characterized in that the third connection portion of the conductive terminal is electrically connected to the contact terminal of the third electrical connector via a circuit board.

12. The electrical connector assembly according to claim 11, characterized in that the circuit board is a printed circuit board, the end of the third connecting portion away from the main body is needle-shaped; a plurality of first conductive through holes are provided on the printed circuit board; and the end of the third connecting portion is correspondingly inserted into the first conductive through hole of the printed circuit board.

13. The electrical connector assembly according to claim 11, characterized in that the first connecting portions of the plurality of conductive terminals are arranged in three rows, including two flat first connecting portions located on both sides and a plurality of needle-shaped first connecting portions located in the middle; the second connecting portions of the plurality of conductive terminals are flat.

14. The electrical connector assembly according to claim 11, characterized in that the third electrical connector includes a mating housing, and a plurality of the contact terminals are fixed inside the mating housing; the tail of each contact terminal is correspondingly connected to the circuit board.

15. The electrical connector assembly according to claim 11, characterized in that the insulating housing has a receiving groove; the third connection portion of the plurality of conductive terminals is disposed in the receiving groove, and the receiving groove is filled with a third sealant.

16. The electrical connector assembly according to claim 11, characterized in that a first electrical connector interface is provided on a first side of the insulating housing; a first connection portion of the plurality of conductive terminals is disposed within the first electrical connector interface, and the first electrical connector interface is filled with a first sealant.

17. The electrical connector assembly according to claim 11, characterized in that the insulating housing further comprises a second electrical connector interface on a second side opposite to the first side, and a sealing ring disposed on the second electrical connector interface; the sealing ring has a plurality of through holes, and the second connecting portions of the plurality of conductive terminals are correspondingly disposed in the through holes.

18. The electrical connector assembly according to claim 17, wherein the sealing ring is injection molded onto the insulating housing.

19. The electrical connector assembly according to claim 17, characterized in that the outer edge of the second electrical connector interface is provided with a mating groove; the sealing ring is provided with at least one retaining protrusion on the side facing the insulating housing, the retaining protrusion being embedded in the mating groove, thereby fixing the sealing ring to the second electrical connector interface.

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