Terminal assembly, electric connector and method for manufacturing electric connector

Abstract

The invention provides a terminal assembly and an electric connector, and relates to the technical field of electric connectors, the thickness of a first terminal for transmitting current is a first thickness, the partial thickness of a second terminal for transmitting signals is a second thickness, and the second thickness is smaller than the first thickness, that is, the partial thickness of the second terminal is smaller than the thickness of the first terminal. The second terminal is thinner than a traditional signal terminal, the requirement for high-speed transmission can be met, and the technical problem that in the prior art, a USB Type-C terminal structure cannot meet the requirement for high-speed signal transmission is solved. The invention further provides a method for manufacturing the electric connector.

Description

Technical Field

[0001] The present application relates to the technical field of electrical connectors, and in particular to a terminal assembly, an electrical connector, and a method for manufacturing the electrical connector. Background Art

[0002] This section provides background information related to the present application but this information does not necessarily constitute prior art.

[0003] As the use scenarios of various portable electronic devices become more and more diverse, for example, mobile phones, smart watches, tablet computers and other small electronic products are carried by users. Electronic devices are usually equipped with USB Type-C female connectors, and electronic devices are connected to USB male connectors through USB female connectors to realize charging of electronic products or data exchange with other electronic devices.

[0004] The USB Type-C connector is a USB interface standard that is smaller than both the Type-A female connector and the Type-B female connector. It can be used in both PCs and external devices.

[0005] In the related art, after the USB Type-C female connector is assembled into an electronic device, there may be a gap between the female connector and the mounting portion of the housing of the electronic device. Water or dust entering from the socket of the USB Type-C female connector can easily enter the interior of the electronic device from the gap between the main housing and the mounting portion of the electronic device, causing an internal short circuit in the electronic device and poor safety performance. Therefore, the waterproof function of the female connector of the electronic device (such as the USB Type-C charging port) becomes very important. If the electronic device is charged when water vapor enters the inside of the charging port, the electronic device is likely to be burned, and in severe cases, it may cause an explosion, thereby threatening the life safety of the user. The electronic device structure of the related art cannot meet the high requirements of the waterproof function or the waterproof effect is poor, so there is an urgent need to improve the sealing structure of the electrical connector in order to improve the waterproof performance of the electronic device.

[0006] In the related art, the USB Type-C female connector has a current terminal and a signal terminal. The current terminal is used to transmit current, and the signal terminal is used to transmit signals. With the development of technology, the use scenarios of the USB Type-C female connector are becoming more and more abundant, and the requirements for the USB Type-C female connector are becoming higher and higher, and higher signal transmission requirements need to be met. Therefore, there is an urgent need for a USB Type-C female connector that can meet the needs of high-speed signal transmission. Summary of the invention

[0007] This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

[0008] In view of the problems existing in the above conventional technologies, there is a need to improve the relevant female connector to overcome or alleviate all or at least part of the above technical problems.

[0009] The present application provides a terminal assembly and an electrical connector to alleviate the technical problem in the prior art that the USB Type-C terminal structure cannot meet the requirements of high-speed signal transmission.

[0010] The terminal assembly provided in some embodiments of the present application may include: a first terminal having a first thickness used for transmitting current and a second terminal used for transmitting signals, at least a portion of each second terminal having a second thickness less than the first thickness.

[0011] In an optional embodiment, the first thickness is in a range of 0.1 mm to 0.35 mm.

[0012] In an optional embodiment, the second terminal has a thinned section after thinning treatment, and the thickness of the thinned section is the second thickness; the thickness of the second terminal in the non-thinned section is 0.1mm to 0.25mm; the thinned thickness of the thinned section is 0.01mm to 0.10mm.

[0013] In an optional embodiment, the first terminal includes a proximal terminal portion and a distal terminal portion, the second terminal includes a proximal terminal portion and a distal terminal portion, the proximal terminal portion of the second terminal includes a thinned section, and the thickness of the proximal terminal portion of the first terminal is consistent.

[0014] In an optional embodiment, the first terminal is configured to be capable of providing current delivery of 5A to 10A; and the second terminal is configured to be capable of transmitting signals at 5Gbps to 80Gbps per second.

[0015] In an optional embodiment, both the first terminal and the second terminal have a corrosion-resistant coating, and the material of the coating is any one of platinum, rhodium, ruthenium, and palladium.

[0016] Other embodiments of the present application provide an electrical connector, which may include an injection-molded shell and the terminal assembly; the first terminal and the second terminal are each provided in plurality, and form two rows of terminals arranged vertically along the height direction of the electrical connector; the injection-molded shell is sleeved outside the two rows of terminals for fixing the two rows of terminals.

[0017] In an optional embodiment, one row of the two rows of terminals is configured as a first group of conductive elements formed by a portion of the first terminals among the plurality of first terminals and a portion of the second terminals among the plurality of second terminals, and the other row of the two rows of terminals is configured as a second group of conductive elements formed by the remaining first terminals among the plurality of first terminals and the remaining second terminals among the plurality of second terminals, and the first group of conductive elements and the second group of conductive elements are arranged relatively to each other in the height direction of the electrical connector.

[0018] In an optional embodiment, at least a portion of the second terminals forming the first group of conductive elements and at least a portion of the second terminals forming the second group of conductive elements have thinned sections that have been thinned, and the second terminals forming the first group of conductive elements with the thinned sections and the second terminals forming the second group of conductive elements with the thinned sections are aligned up and down with each other along the height direction.

[0019] In an optional embodiment, the terminal assembly includes a shielding member located between the first group of conductive elements and the second group of conductive elements, and the shielding member is spaced apart from the first group of conductive elements and the second group of conductive elements by a predetermined distance in the height direction, respectively.

[0020] In an optional embodiment, the injection-molded shell includes an inner shell, which defines a accommodating portion for accommodating the first terminal and the second terminal, and the distal terminal portion of the first terminal and the distal terminal portion of the second terminal are molded into the accommodating portion of the inner shell by injection molding.

[0021] In an optional embodiment, the shielding member is molded in the accommodating portion of the inner housing by injection molding together with the distal terminal portions of the first terminals and the distal terminal portions of the second terminals forming the first and second groups of conductive elements.

[0022] In an optional embodiment, the electrical connector further includes a first sealing member; a sealing groove is provided along the circumference of the injection-molded housing, and the first sealing member is provided in the sealing groove.

[0023] In an optional embodiment, the electrical connector further includes a second seal; the injection-molded housing is provided with a sealing hole, the depth direction of the sealing hole is perpendicular to the top surface of the terminal assembly, and the second seal is arranged in the sealing hole.

[0024] In an optional embodiment, the injection-molded shell is provided with a first rough section at the bottom of the sealing groove, which is used to increase the adhesion between the first seal and the injection-molded shell; the terminal assembly is provided with a second rough section in the area of ​​the sealing hole projected onto the terminal assembly along the hole depth direction, which is used to increase the adhesion between the second seal and the terminal assembly.

[0025] In an optional embodiment, the first seal is an elastically deformable member, and the first seal is configured to be elastically deformed when the first seal contacts a mounting portion of an electronic device that is compatible with the electrical connector, and to form an interference fit with the mounting portion of the electronic device.

[0026] In an optional embodiment, the first seal is configured to have an annular shape extending continuously in a circumferential direction around the proximal end of the injection-molded housing, and the first seal is configured to have an attachment surface that forms a form fit with the sealing groove of the injection-molded housing.

[0027] In an optional embodiment, the second seal is configured to have a substantially square shape, and the second seal is configured to have an attachment surface that forms a positive fit with the sealing hole of the injection-molded housing.

[0028] In an optional embodiment, the electrical connector also includes a metal outer frame; the metal outer frame has a first outer frame portion embedded in the injection molded shell, a second outer frame portion covering the outside of the injection molded shell, and a third outer frame portion extending from both sides of the first outer frame portion; screw plate hole brackets extend from both sides of the injection molded shell, and the third outer frame portion of the metal outer frame is embedded in the screw plate hole brackets.

[0029] In an optional embodiment, a receiving portion for receiving the first portion of the outer frame is configured near the distal end of the inner housing, so that the metal outer frame is positioned at a predetermined position relative to the inner housing and the terminal assembly.

[0030] In an optional embodiment, the sealing hole is formed in a central portion of the injection-molded housing connected to the screw plate hole bracket, and before the second seal is disposed in the sealing hole, a corresponding one of the first terminal and the second terminal is exposed through the sealing hole.

[0031] In an optional embodiment, the sealing groove is formed in the proximal portion of the injection-molded housing at a predetermined position away from the central portion.

[0032] Some further embodiments of the present application provide a method for manufacturing the above-mentioned electrical connector, which may include the following steps:

[0033] Step 01): providing a plurality of first terminals and a plurality of second terminals, and forming a first group of conductive elements with a portion of the first terminals and a portion of the second terminals, and forming a second group of conductive elements with the remaining first terminals and the remaining second terminals;

[0034] Step 02): Providing a shielding member;

[0035] Step 03): placing the first group of conductive elements and the shielding element in a first injection mold and performing a first injection molding to form a first molded part;

[0036] Step 04): assembling the second group of conductive elements onto the first molded part, and positioning the second group of conductive elements at a predetermined position relative to the first molded part; and

[0037] Step 05): Provide a metal outer frame and position the metal outer frame at a predetermined position relative to the first molded part and the second group of conductive elements, place the metal outer frame, the second group of conductive elements and the first molded part in a second injection mold, and perform a second injection molding to form a second molded part, wherein the second molded part includes an injection molded shell.

[0038] In an optional embodiment, in the step 03), a mounting groove for assembling the second group of conductive elements is integrally molded on the first molded part on a side of the shielding part opposite to the first group of conductive elements.

[0039] In an optional embodiment, the mounting slots include a plurality of first slots near the proximal end side of the first molded piece, a plurality of third slots near the distal end side of the first molded piece, and a plurality of second slots arranged between the plurality of first slots and the plurality of third slots along the mating direction of the electrical connector. The plurality of first slots, the plurality of second slots, and the plurality of third slots are aligned with each other in a one-to-one manner in the mating direction of the electrical connector for accommodating and positioning a corresponding one of the terminals forming the second group of conductive elements.

[0040] In an optional embodiment, the first molded part formed in step 03) includes an inner shell, and a receiving portion is configured on a side of the inner shell where the first group of conductive elements are provided and near a distal end of the first molded part.

[0041] In an optional embodiment, in step 05), providing a metal frame includes forming the metal frame to have: a first frame portion serving as the central portion of the metal frame; a second frame portion extending from the first frame portion along the mating direction toward the distal end of the electrical connector; and a third frame portion cantilevered from both sides of the first frame portion in the width direction of the electrical connector in the height direction of the electrical connector, the third frame portion being formed as an L-shaped step portion having a leg portion parallel to the first frame portion, the second frame portion being accommodated in the accommodating portion so that the metal frame is positioned at a predetermined position relative to the first molded piece and the second group of conductive elements assembled together in step 04).

[0042] In an optional embodiment, in the step 05), during the second injection molding to form a second molded part, a support seat portion is formed near the distal end of the injection molded shell, wherein a sealing groove is formed on the proximal side of the support seat portion at a predetermined distance from the support seat portion, and a sealing hole is formed on two opposite surfaces of the support seat portion along the height direction of the electrical connector.

[0043] In an optional embodiment, the method further comprises the step of roughening the electrical connector, the sealing groove and the sealing hole to form a roughened portion.

[0044] In an optional embodiment, the method further includes: applying an adhesive to the roughened portion of the sealing groove and / or the roughened portion of the sealing hole to correspondingly form a first seal in the sealing groove and / or a second seal in the sealing hole.

[0045] In an optional embodiment, in the step 03), the first group of conductive elements and the shielding member are spaced apart from each other in a height direction of the electrical connector.

[0046] In an optional embodiment, in step 04), the second group of conductive elements are positioned at a predetermined position relative to the first molded part in such a manner that the first group of conductive elements are spaced apart from each other in the height direction of the electrical connector and the shielding part is located between the first group of conductive elements and the second group of conductive elements.

[0047] The terminal assembly provided in the present application has a first thickness as the thickness of the first terminal for transmitting current, and a second thickness as the partial thickness of the second terminal for transmitting signals. The second thickness is less than the first thickness, that is, the partial thickness of the second terminal is less than the thickness of the first terminal. The second terminal is thinner than the traditional signal terminal and can meet the needs of high-speed transmission, thereby alleviating the technical problem that the USB Type-C terminal structure in the prior art cannot meet the requirements of high-speed signal transmission.

[0048] The above-mentioned features and advantages and other features and advantages of the present application will become more apparent through the following detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0050] Figure 1 A schematic diagram of the structure of a terminal assembly provided for an exemplary embodiment of the present application;

[0051] Figure 2 A schematic diagram of the structure of a second terminal in a terminal assembly provided in an exemplary embodiment of the present application;

[0052] Figure 3 A perspective view of a first terminal and a second terminal of a terminal assembly provided in an exemplary embodiment of the present application;

[0053] Figure 4 A perspective view of a shielding member provided for an exemplary embodiment of the present application;

[0054] Figure 5 An installation arrangement diagram of a terminal assembly provided for an exemplary embodiment of the present application;

[0055] Figure 6 A schematic diagram of the overall structure of an electrical connector provided in an exemplary embodiment of the present application;

[0056] Figure 7 Another schematic diagram of the overall structure of the electrical connector provided by the exemplary embodiment of the present application;

[0057] Figure 8 An exploded view of the overall structure of an electrical connector provided in an exemplary embodiment of the present application;

[0058] Fig. 9A schematic diagram of the structure of an inner shell and a metal outer frame including an injection-molded shell provided in an exemplary embodiment of the present application;

[0059] Fig.10 A schematic diagram of the positions of a first rough section and a second rough section in an electrical connector provided in an exemplary embodiment of the present application;

[0060] Fig.11 An installation schematic diagram of step 03 of installing an electrical connector provided in an exemplary embodiment of the present application;

[0061] Fig.12 Another installation schematic diagram of the installation step 03 of the electrical connector provided in the exemplary embodiment of the present application;

[0062] Fig.13 An installation schematic diagram of step 04 of installing an electrical connector provided in an exemplary embodiment of the present application;

[0063] Fig.14 An installation schematic diagram of step 05 of installing an electrical connector provided in an exemplary embodiment of the present application;

[0064] Fig.15 An installation schematic diagram of step 06 of installing an electrical connector provided in an exemplary embodiment of the present application; and

[0065] Fig.16 A side view of a second terminal in row A terminals and a second terminal in row B terminals in a terminal assembly provided in an exemplary embodiment of the present application.

[0066] Icons: 1-electrical connector; 10-first terminal; 20-second terminal; 21-thinning section; 100-terminal assembly; 101-first group of conductive elements; 102-second group of conductive elements, 110-shielding member; 200-injection molded housing; 210-sealing groove; 220-sealing hole; 230-first rough section; 240-second rough section; 250-screw plate hole bracket; 260-inner housing; 261-first card slot; 262-second card slot; 263-third card slot; 270-support seat; 300-first seal; 400-second seal; 500-metal outer frame; 510-first part of the outer frame; 520-second part of the outer frame; 530-third part of the outer frame. DETAILED DESCRIPTION

[0067] The technical solution of the present application will be clearly and completely described below in conjunction with the exemplary embodiments. Obviously, the exemplary embodiments described are part of the embodiments of the present application, rather than all of the embodiments. Based on the exemplary embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0068] It should be noted that the exemplary embodiments of the present application are intended to enable those of ordinary skill in the art to easily implement the present application, and the various embodiments of the present application can be implemented in many different forms and should not be interpreted as being limited to the embodiments described in the present application. Accordingly, the following detailed description of the present application is only for illustrative purposes and is by no means a limitation of the present application. In addition, the same reference numerals are used in the various drawings to represent the same components.

[0069] It should also be noted that, for the sake of clarity, not all features of an actual specific implementation are described and illustrated in the specification and drawings of the present application. Furthermore, in order to avoid unnecessary details obscuring the technical solution that the present application focuses on, only the device structure closely related to the technical solution of the present application is described and illustrated in the drawings and the specification, while other details that are not closely related to the technical content of the present application and are known to those skilled in the art are omitted.

[0070] Accordingly, in order to make the purpose, technical scheme and advantages of the exemplary embodiments of the present application clearer, each exemplary embodiment of the present application will be described in detail below in conjunction with the accompanying drawings. However, it will be appreciated by those skilled in the art that in each exemplary embodiment of the present application, many technical details are proposed in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following exemplary embodiments, the technical scheme claimed in the present application can also be implemented. The division of the following exemplary embodiments is for the convenience of description and should not constitute any limitation on the specific implementation of the present application. The technical features of each exemplary embodiment can be combined and referenced to each other without contradiction.

[0071] As far as the disclosure of the present application is concerned, unless otherwise stated, singular terms such as "one", "a kind" include plural references, and vice versa. The terms "and" and "or" should be both associated and separate. The meanings of the terms "any" and "all" both include "any and all". It should also be understood that although ordinal terms such as "first" and "second" are used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These ordinal terms are only used to distinguish a certain element, component, region, layer and / or section from other elements, components, regions, layers and / or sections, and should not be understood to indicate or imply relative importance or relative order. In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0072] Next, the terminal assembly provided according to some embodiments of the present application will be described in detail with reference to the accompanying drawings. For the sake of clarity and conciseness of the description, the X, Y, and Z directions are used in the figure to indicate the horizontal direction X, the mating direction Y, and the vertical direction Z, respectively. The horizontal direction X, the mating direction Y, and the vertical direction Z are perpendicular to each other. Among them, the horizontal direction X is used to indicate the width direction of the electrical connector according to the present application. The mating direction Y is used to indicate the connection direction of the electrical connector and another matching electrical connector, that is, the mating direction of the electrical connector and the corresponding matching electrical connector. The vertical direction Z is used to indicate the height direction (i.e., the thickness direction) of the electrical connector.

[0073] In order to meet the high-speed signal transmission requirements of USB Type-C female connectors, such as Figure 1 , Figure 2 As shown, the terminal assembly 100 provided according to some exemplary embodiments of the present application includes: a first terminal 10 having a first thickness used for transmitting current and a second terminal 20 used for transmitting signals, and at least a portion of each second terminal 20 has a second thickness less than the first thickness.

[0074] Specifically, the first terminal 10 is a terminal for transmitting current, that is, a current terminal, and the second terminal 20 is a terminal for transmitting signals, that is, a signal terminal. The thickness of the first terminal 10 is the first thickness. The first thickness is 0.1 mm to 0.35 mm. The first terminal 10 is thicker than the traditional current terminal, so that the first terminal 10 can meet the rated current of 5A to 10A.

[0075] The second terminal 20 is used as a terminal for transmitting signals. In the exemplary embodiment shown, after the second terminal 20 is thinned, the thickness of the second terminal 20 at some positions is thinner than the thickness at other positions, forming a thinned section 21. The thickness of the thinned section 21 is the second thickness. The thickness of the second terminal 20 at the non-thinned section is 0.1mm to 0.25mm; the thinned thickness of the thinned section 21 is 0.01mm to 0.10mm to meet the requirements of high-speed transmission of 5G to 80G per second. In other words, the thickness of the thinned section is 0.01mm to 0.10mm less than the thickness of the non-thinned section.

[0076] In some exemplary embodiments, Figure 3 As shown, the first terminal 10 may have a proximal terminal portion 11 and a distal terminal portion 12. The second terminal 20 may have a proximal terminal portion 22 and a distal terminal portion 23. The proximal terminal portion 22 of the second terminal 20 includes a thinned section 21, and the thickness h of the thinned section 21 is less than the thickness H of other sections of the proximal terminal portion 22 of the second terminal 20. The proximal terminal portion 11 of the first terminal has a uniform thickness in its length direction.

[0077] The thickness of each of the first terminal and the second terminal is the thickness of each of the first terminal and the second terminal in the vertical direction, that is, the height direction Z of the electrical connector.

[0078] In some examples, the thinned section 21 of the second terminal 20 is formed by a stamping process, such as a stamping forming process. It should be understood that stamping is a production technology that uses stamping equipment (press) and tools (die) to apply pressure to sheet metal or non-metal to separate or plastically deform it, thereby obtaining a product with a certain shape, size and performance requirements.

[0079] It is understood that the expression "proximal end" used in the description of this application refers to the end of the female connector facing the male connector when the female connector is connected to the corresponding male connector, and the expression "distal end" refers to the end of the female connector facing away from the male connector when the female connector is connected to the corresponding male connector. In other words, the "proximal end" and the "distal end" respectively indicate the opposite ends of the female connector in the mating direction.

[0080] In some exemplary embodiments, Figure 4 As shown, the terminal assembly 100 includes a plurality of first terminals 10 and a plurality of second terminals 20 arranged in a row. In the exemplary embodiment shown, the terminal assembly 100 includes two rows of terminals, each row including a plurality of first terminals 10 and a plurality of second terminals 20. Figure 4As shown, one row of terminals in the two rows of terminals is formed by a portion of the first terminals in the plurality of the first terminals 10 and a portion of the second terminals in the plurality of the second terminals 20. Correspondingly, the other row of terminals in the two rows of terminals is configured to be formed by the remaining first terminals in the plurality of the first terminals 10 and the remaining second terminals in the plurality of the second terminals 20. In some exemplary embodiments, the corresponding first terminals 10 and second terminals 20 forming any row of the two rows of terminals may be arranged in an array.

[0081] According to an exemplary embodiment of the present application, Figure 5 As shown, the terminal assembly is provided with two rows of terminals, namely Figure 5 The A row of terminals and the B row of terminals are spaced apart in the thickness direction of the terminal assembly, and are located Figure 5 The row of terminals at the top are labeled A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, and A12 from right to left. Figure 5 The row of terminals at the bottom are marked as B1, B2, B3, B4, B5, B6, B7, B8, B9, B10, B11 and B12 from left to right.

[0082] In the exemplary embodiment shown, each of the A-row terminals and the B-row terminals includes a first terminal 10 and a second terminal 20, wherein the first terminal 10 and the second terminal 20 are arranged side by side to form a row of terminals. Among them, the thickness of A4, A5, A6, A9 and B4, B5, B6, B9 as the first terminals 10 is 0.1mm to 0.35mm to meet the rated current of 5A to 10A. The thickness of A1, A2, A3, A7, A8, A10, A11, A12 and B1, B2, B3, B7, B8, B10, B11, B12 as the second terminals 20 is 0.1mm to 0.25mm to meet the high-speed signal transmission of 5G to 80G.

[0083] In addition, if Figure 2 As shown, in some embodiments, the original terminal material thickness of the second terminal 20 is 0.10mm to 0.25mm. In order to better meet the high-frequency structure requirements, the terminal can be thinned to a depth of 0.01mm to 0.10mm. In an optional exemplary embodiment, four of the second terminals 20 can be thinned. Figure 1 , A2, A3, A10, and A11 in the A row of terminals, which are the second terminals 20, are thinned.

[0084] In the exemplary embodiment shown, the terminals in row A and the terminals in row B are aligned with each other in the vertical direction Z (the height direction of the terminal assembly). In an optional exemplary embodiment, the thinned second terminals 20 in row A are aligned with the thinned second terminals 20 in row B. In the exemplary embodiment shown, corresponding to the thinning of A2, A3, A10, A11 as the second terminals 20 in row A, B2, B3, B10, B11 as the second terminals 20 in row B are thinned, and terminals A2, A3, A10, A11 are aligned with B11, B10, B3, B2 in the vertical direction Z, respectively. In some embodiments, the recesses formed by the thinning process on the second terminals in row A and the recesses formed by the thinning process on the second terminals in row B are arranged facing each other in the vertical direction Z. Refer to Fig.16 As an example, the recess formed by thinning terminal A2 in row A is arranged to face row B terminals in the vertical direction Z, and the recess formed by thinning terminal B11 in row B is arranged to face row A terminals in the vertical direction Z.

[0085] In an optional embodiment, the first terminal 10 and the second terminal 20 both have a corrosion-resistant coating, and the coating material is any one of platinum, rhodium ruthenium, and palladium. That is, the terminal surfaces of the first terminal 10 and the second terminal 20 are processed, and both are coated with special coatings such as platinum coating, rhodium ruthenium coating, or palladium coating to meet the corrosion resistance effect.

[0086] In some exemplary embodiments, the first terminal 10 and the second terminal 20 are surface treated with platinum, rhodium, ruthenium, or palladium by electroplating to form corresponding plating layers, thereby forming a uniform, dense, and well-bonded metal surface while improving the corrosion resistance of the corresponding terminals.

[0087] The terminal assembly 100 provided in the exemplary embodiment of the present application has a first terminal 10 for transmitting current with a first thickness, and a second terminal 20 for transmitting signals with a partial thickness with a second thickness, wherein the second thickness is less than the first thickness, that is, the partial thickness of the second terminal 20 is less than the thickness of the first terminal 10. The second terminal 20 is thinner than the traditional signal terminal and can meet the requirements of high-speed transmission, thereby alleviating the technical problem in the prior art that the USB Type-C terminal structure cannot meet the requirements of high-speed signal transmission.

[0088] Based on the above exemplary embodiments, Figure 5 , 6As shown, according to another aspect of the present application, an electrical connector 1 is provided, which is mainly suitable for 5G mobile phones, tablets, adapters, communication equipment, network equipment, routers, laptops, electronic cigarettes, etc. As an example, the electrical connector 1 can be a USB Type-C female connector.

[0089] In the exemplary embodiment shown, the electrical connector 1 according to the present application may include an injection molded housing and a terminal assembly. The terminal assembly may be the terminal assembly 100 described in the aforementioned embodiment. As described in the aforementioned embodiment, in the terminal assembly 100, a plurality of first terminals 10 and second terminals 20 are provided, and two rows of terminals are formed in an upper and lower arrangement. In the exemplary embodiment shown, the injection molded housing 200 of the electrical connector 1 is sleeved outside the two rows of terminals for fixing the two rows of terminals.

[0090] Specifically, the electrical connector 1 includes a terminal assembly 100 and an injection molded housing 200, wherein the injection molded housing 200 is sleeved on at least a portion of the outer side of the terminal assembly 100; the terminal assembly 100 includes a plurality of first terminals 10 and second terminals 20, each of which is formed into a long strip shape. A portion of the first terminals 10 and the second terminals 20 are arranged to form a row of terminal groups, namely, a first group of conductive elements 101, and another portion of the first terminals 10 and the second terminals 20 are arranged to form another row of terminal groups, namely, a second group of conductive elements 102, such as Figure 4 shown.

[0091] According to an exemplary embodiment of the present application, one row of the two rows of terminals is configured to be a first group of conductive elements 101 formed by a portion of the first terminals 10 and a portion of the second terminals 20, and the other row of the two rows of terminals is configured to be a second group of conductive elements 102 formed by the remaining first terminals 10 and the remaining second terminals 20.

[0092] In the exemplary embodiment shown, the first and second groups of conductive elements 101 and 102 are spaced apart from each other in the thickness direction Z of the electrical connector 1 , and are coated with a resin as the injection molded housing 200 .

[0093] In some exemplary embodiments, the first group of conductive elements 101 and the second group of conductive elements 102 are arranged opposite to each other. In some exemplary embodiments, the first terminal 10 may have a proximal terminal portion 11 and a distal terminal portion 12. The second terminal 20 may have a proximal terminal portion 22 and a distal terminal portion 23.

[0094] In some exemplary embodiments, the terminal assembly 100 includes an insulating rubber core and a plurality of first terminals 10 and a plurality of second terminals 20 formed as an integral piece with the insulating rubber core. A portion of the first terminals 10 and a portion of the second terminals 20 are arranged in a row in a horizontal direction X to form a first group of conductive elements 101, and another portion of the first terminals 10 and another portion of the second terminals 20 are arranged in a row in the horizontal direction X to form a second group of conductive elements 102. The first group of conductive elements 101 and the second group of conductive elements 102 are arranged opposite to each other in a thickness direction Z of the electrical connector 1, so that: at least a portion of the second terminals 20 forming the first group of conductive elements 101 and at least a portion of the second terminals 20 forming the second group of conductive elements 102 have thinned sections that have been thinned, and the second terminals 20 forming the first group of conductive elements 101 and the second terminals 20 forming the second group of conductive elements 102 are aligned with each other up and down along the height direction Z.

[0095] In some embodiments, Figure 4 As shown, the terminal assembly 100 further includes: a shielding member 110 disposed between the first group of conductive elements 101 and the second group of conductive elements 102 in the thickness direction Z of the electrical connector 1. The shielding member 110 is spaced apart from the first group of conductive elements 101 and the second group of conductive elements 102 by a predetermined distance in the height direction Z of the electrical connector 1. The shielding member 110 is configured to shield signal interference between the two rows of conductive terminals.

[0096] In some exemplary embodiments, the injection molded housing 200 includes an inner housing 260, which may define a receiving portion for receiving the first terminal 10 and the second terminal 20. Each of the proximal terminal portion 11 of the first terminal 10 and the proximal terminal portion 22 of the second terminal 20 of the terminal assembly 100 is molded into the receiving portion of the inner housing 260 by injection molding.

[0097] In some embodiments, the shield 110 may be molded together with the distal terminal portion 12 of the first terminal 10 and / or the distal terminal portion 23 of the second terminal 20 in the receiving portion of the inner housing by injection molding to form an integral molded part.

[0098] In some embodiments, the shield 110 may be formed as a plate. In an alternative embodiment, the shield 110 formed as a plate may be disposed between the first group of conductive elements 101 and the second group of conductive elements 102 and parallel to the first group of conductive elements 101 and the second group of conductive elements 102, respectively.

[0099] Reference Figures 6 to 8In an optional embodiment, the electrical connector 1 further includes a first sealing member 300 . A sealing groove 210 is provided along the circumference of the injection-molded housing 200 , and the first sealing member 300 is provided in the sealing groove 210 .

[0100] Specifically, a sealing groove 210 is provided in the circumference of the injection-molded housing 200. A first sealing member 300 is formed in the sealing groove 210 by LIM (liquid injection molding) process, and the first sealing member 300 fills the sealing groove 210 to achieve the front sealing effect of the electrical connector 1.

[0101] In an exemplary embodiment according to the present application, the sealing groove 210 is provided in a region of the injection-molded housing 200 close to a distal terminal portion of the terminals forming the first group of conductive elements 101 and the second group of conductive elements 102 .

[0102] In some embodiments, the sealing groove 210 is roughened by laser engraving (also referred to as laser processing) or discharge machining to form a roughened portion (see Fig.10 The so-called "bottom" of the sealing groove 210 includes the groove surface of the bottom wall of the sealing groove and the two side walls connected to the bottom wall. In an optional embodiment, the groove surface of the sealing groove 210 can be embossed or knurled to form a roughened portion.

[0103] In some embodiments, the first seal 300 can be formed by placing the roughened portion of the seal groove 210 to be processed in the adhesive molding tool using an adhesive molding tool that matches the predetermined size and shape of the first seal 300, and applying adhesive to the roughened portion along the circumferential direction of the injection-molded housing 200. In some examples, the adhesive is applied in the adhesive molding tool by using one of the following methods: time pressure type dispensing, piston pump dispensing, and screw metering pump dispensing.

[0104] In an optional embodiment, the adhesive molding tool contains an adhesive, and the adhesive can be selected from one of the following: UV adhesive, silicone, and epoxy resin adhesive.

[0105] In an exemplary embodiment according to the present application, the electrical connector 1 also includes a second seal 400 ; the injection molded housing 200 is provided with a sealing hole 220 , the depth direction of the sealing hole 220 is perpendicular to the top surface of the terminal assembly 100 , and the second seal 400 is arranged in the sealing hole 220 .

[0106] Specifically, a sealing hole 220 is provided through the injection molded shell 200, that is, a sealing hole 220 is provided on both sides of the injection molded shell 200, and the two sealing holes 220 are arranged opposite to each other, and the terminal assembly 100 is located between the two sealing holes 220, and a second sealing member 400 is formed in the sealing hole 220 through the LIM process, and the sealing hole 220 is sealed by the second sealing member 400 to achieve the rear sealing effect of the electrical connector.

[0107] Reference Figures 6 to 8 In some embodiments of the present application, the injection molded housing 200 may include a support seat 270 formed near the distal end of the injection molded housing 200. The support seat 270 may be configured as a stopper for preventing excessive movement of the electrical connector 1 in the mating direction Y when the electrical connector 1 is plug-matched with a matching corresponding electrical connector.

[0108] In the exemplary embodiment shown, the sealing holes 220 are provided on two opposite surfaces of the support seat portion 270 along the thickness direction Z of the electrical connector 1. In the case where the second seal 400 is not provided, a portion of the distal terminal portion of the terminals forming the first group of conductive elements 101 and the second group of conductive elements 102 can be visible from the outside of the electrical connector 1 through the sealing holes 200.

[0109] In the exemplary embodiment shown, the sealing groove 210 is arranged to be a predetermined distance away from the support seat portion 270 and is located on the proximal side of the support seat portion 270, so that when the electrical connector 1 is plugged into and mated with the corresponding electrical connector along the mating direction Y, the first seal 300 arranged in the sealing groove 210 first contacts the engaging portion of the corresponding electrical connector, thereby achieving a front sealing effect of the electrical connector 1.

[0110] In an optional embodiment, like the sealing groove 210, the inner surface of the sealing hole 220 can be roughened by laser engraving (also known as laser processing) or discharge machining to form a roughened portion; or the outer surface of the sealing groove 210 can be embossed or knurled to form a roughened portion.

[0111] In some exemplary embodiments, by using an adhesive molding tool that matches the predetermined size and shape of the second seal 400, the roughened portion to be processed of the sealing hole 220 is placed in the adhesive molding tool, and adhesive is applied to the roughened portion along the circumferential inner surface of the sealing hole 220, thereby forming the second seal 400.

[0112] In some exemplary embodiments, the roughened portion includes a pattern formed by at least one of a twill pattern, a grid pattern, or a predetermined symbol pattern. For example, the predetermined symbol pattern includes at least one of a cross shape, an H shape, or an X shape.

[0113] In some exemplary embodiments, the first seal 300 is configured to have an annular shape extending continuously in the circumferential direction around the outer peripheral surface of the injection molded housing 200 near the support seat portion 270. In an alternative embodiment, the first seal 300 is configured to have an attachment surface that forms a form fit with the sealing groove.

[0114] In some exemplary embodiments, the sealing hole 220 may be configured to have a square opening cross-sectional shape, and thus the second sealing member 400 is configured to have a substantially square shape and have an attachment surface that forms a form fit with the sealing hole 220 .

[0115] It should be understood that the term "form-fit" used in the present application refers to a relationship in which two cooperating parts form a mutual abutment and close combination relationship in terms of shape and position.

[0116] In some exemplary embodiments, the first seal 300 and / or the second seal 400 may be an elastically deformable member. The first seal 300 and / or the second seal 400 are configured to produce elastic deformation when the first seal 300 and / or the second seal 400 contacts the mounting portion of the corresponding electrical connector (e.g., a portion of the housing of the adapter connector of the electronic device), and form an interference fit with the mounting portion of the electronic device in a direction perpendicular to the mating direction Y. In one example, the seal may be made of ultraviolet light curing glue (UV glue), silicone or epoxy resin glue. The ultraviolet light curing glue is rapidly cured into an elastic adhesive film under ultraviolet light, and has the characteristics of high bonding strength, vibration resistance, high temperature resistance, and good durability.

[0117] According to the electrical connector 1 of the exemplary embodiment of the present application, in particular, in the embodiment in which the sealing groove 210 and / or the sealing hole 220 are formed with a roughened portion, the roughened portion increases the surface roughness of the contact surface between the seal 300, 400 and the corresponding sealing groove 210, sealing hole 220 on the injection-molded shell 200, thereby improving the adhesion of the seal to the injection-molded shell and ensuring the sealing performance of the electrical connector 1.

[0118] Through the above technical solution, it is possible to provide a very tight attachment between the first seal and / or the second seal and the injection molded shell, and the surface roughness of the outer side wall of the injection molded shell of the female connector provided with the roughened portion is higher than the surface roughness of the rest of the injection molded shell, thereby significantly improving the adhesion between the first seal and / or the second seal and the roughened portion of the main shell, and effectively preventing the seal from falling off. Therefore, when the female connector is installed to the mounting portion of the electronic device, a seamless seal can be generated between the female connector and the mounting portion of the electronic device to effectively prevent water vapor / dust from entering the interior of the electronic device.

[0119] In an optional embodiment, if Figure 6 As shown, in order to increase the adhesion of the first seal 300 and the second seal 400 on the injection molded shell 200, the injection molded shell 200 is provided with a first rough section 230 at the bottom of the sealing groove 210, and the terminal assembly 100 is provided with a second rough section 240 in the area of ​​the sealing hole 220 projected on the terminal assembly 100 along the hole depth direction. The first rough section 230 and the second rough section 240 are formed by laser technology to increase the surface roughness and increase the adhesion of the first seal 300 and the second seal 400 to meet the waterproof requirements.

[0120] The waterproof structure of the product adopts the method of simultaneous LIM at the front and back to meet the waterproof requirements. The method of LIM+Glue is changed to the method of simultaneous LIM and laser to increase the adhesion of LIM to meet the waterproof requirements and meet the IPX8 waterproof requirements; from two processes to one process, the manufacturing process becomes simpler, the product reliability is better, and the production cost is lower.

[0121] In some embodiments according to the present application, Figures 6 to 8 As shown, the electrical connector 1 may further include a metal outer frame 500, which can increase the strength of the injection molded housing 200. The metal outer frame 500 includes an outer frame first portion 510 embedded in the support seat portion 270 of the injection molded housing 200, an outer frame second portion 520 covering the outside of the injection molded housing 200, and an outer frame third portion 530 extending from both sides of the outer frame first portion 510. In the width direction X of the electrical connector 1, screw plate hole brackets 250 are extended and formed on both sides of the support seat portion 270 of the injection molded housing 200. The outer frame third portion 530 of the metal outer frame 500 is embedded in the screw plate hole bracket 250.

[0122] It should be noted that the first outer frame part 510, the second outer frame part 520 and the third outer frame part 530 are all interconnected integrally formed structures. The first outer frame part 510 is embedded in the injection molded housing 200 by insert molding, the third outer frame part 530 is embedded in the screw plate hole bracket 250 by insert molding, and the second outer frame part 520 is covered on the injection molded housing 200, which effectively enhances the strength and drop resistance of the product, and the manufacturing process is simple.

[0123] According to the electrical connector 1 provided in the exemplary embodiment of the present application, the first seal 300 and the second seal 400 are integrally formed by LIM to meet the waterproof requirement of the electrical connector, and the process is simpler. In addition, a laser process is used to form the first rough section 230 and the second rough section 240, thereby increasing the surface roughness and increasing the adhesion of the seal to meet the waterproof requirement. The first part and the third part of the metal outer frame 500 are embedded in the injection molded shell 200 to improve the strength of the injection molded shell 200.

[0124] According to yet another aspect of the present application, a method for manufacturing an electrical connector 1 is provided.

[0125] According to an exemplary embodiment of the present application, a method for manufacturing an electrical connector 1 may include the following steps:

[0126] Step 01: Provide a plurality of first terminals 10 and second terminals 20; form the plurality of first terminals 10 and second terminals 20 into a first group of conductive elements 101 (lower row terminals) and a second group of conductive elements 102 (upper row terminals), respectively.

[0127] In some embodiments, step 01 may also be implemented as follows: a plurality of first terminals 10 and a plurality of second terminals 20 are arranged in rows such that each row includes the first terminals 10 and the second terminals 20 arranged in an array.

[0128] In some embodiments, reference Figure 1 and Figure 4 In step 01, a portion of the plurality of first terminals 10 and a portion of the plurality of second terminals 20 may be arranged in an array to form a first group of conductive elements 101, and the remaining first terminals of the plurality of first terminals 10 and the remaining second terminals of the plurality of second terminals 20 may be arranged in an array to form a second group of conductive elements 102.

[0129] Step 02: Provide a shielding member 110 .

[0130] In some embodiments, in step 02 , a shielding member 110 formed as a plate member may be provided.

[0131] Step 03: Place the first group of conductive elements 101 (lower row terminals) and the shielding member 110 (middle shielding plate) in a first injection mold, wherein the first group of conductive elements 101 and the shielding member 110 are spaced apart from each other in the thickness direction Z of the electrical connector 1, and perform a first injection molding to form a first molded part M1, as shown in FIG. Fig.11 shown.

[0132] Reference Fig.11 and Fig.12 In some embodiments, in step 03 , a mounting slot for assembling the second group of conductive elements 102 may be integrally molded on a side of the first molded part M1 located opposite to the first group of conductive elements 101 of the shielding part 110 . Fig.11 FIG. 4 shows a state where the first molded part M1 is not assembled with the second group of conductive elements 102 . Fig.12 The first molding M1 is shown in a state where the second group of conductive elements 102 is assembled to the first molding M1 .

[0133] In the exemplary embodiment shown, the first molded part M1 includes an inner housing 260 formed by injection molding around the first group of conductive elements 101 (lower row terminals) and the shield 110 (middle shield plate). On the side of the first molded part M1 located opposite to the first group of conductive elements 101 of the shield 110, the inner housing 260 is configured to have a mounting slot for assembling the second group of conductive elements 102.

[0134] In some embodiments, Fig.11 As shown, the mounting slots may include a plurality of first slots 261 near the proximal end side of the terminal assembly 100 ( / first molded part M1), a plurality of third slots 263 near the distal end side of the terminal assembly 100 ( / first molded part M1), and a plurality of second slots 262 disposed between the first slots 261 and the third slots 263 along the mating direction Y of the electrical connector 1. The number of the first slots 261, the second slots 262, and the third slots 263 is the same, and the corresponding first slots 261, the second slots 262, and the third slots 263 aligned with each other in the mating direction Y of the electrical connector 1 are used to accommodate and position one of the terminals forming the second group of conductive elements 102.

[0135] Step 04: Assemble the second group of conductive elements 102 (upper row terminals) onto the first molded part M1, wherein the second group of conductive elements 102 (upper row terminals) are positioned relative to the first molded part M1 in a manner such that they are spaced apart from the first group of conductive elements 101 in the height direction Z of the electrical connector 1 and the shielding member 110 is located between the first group of conductive elements 101 and the second group of conductive elements 102, as shown in FIG. Fig.12 shown.

[0136] Step 05: The first group of conductive elements (upper row terminals) and the first molded part M1 are placed in a second injection mold, and a metal outer frame 500 is provided as a reinforcement member and the metal outer frame 500 is positioned at a predetermined position relative to the first molded part M1 and the second group of conductive elements 102 assembled in step 04, and then a second injection molding (overmolding molding) is performed with the assembled reinforcement member (metal outer frame 500), the second group of conductive elements 102 and the first molded part M1 as the core to form a second molded part M2, as shown in FIG. Fig.14 shown.

[0137] According to an exemplary embodiment of the present application, the first molded part M1, the second group of conductive elements 102, and the metal outer frame 500 assembled together are subjected to overmolding, so that the second molded part M2 is formed around the first molded part M1, the second group of conductive elements 102, and the metal outer frame 500. The second molded part M2 includes an injection molded housing 200. Through two injection moldings, the metal outer frame 500 is embedded in the interior of the injection molded housing 200, thereby providing greater rigidity for the electrical connector.

[0138] In the exemplary embodiment shown in the figure, Figure 8 As shown, the metal frame 500 serving as a reinforcement may be constructed to have: a first frame portion 510 serving as the central portion of the metal frame 500; a second frame portion 520 extending from the first frame portion 510 along the mating direction Y of the electrical connector 1 toward the distal end of the electrical connector 1; and a third frame portion 530 extending from both sides of the first frame portion 510 in the width direction X of the electrical connector 1 along the thickness direction Z of the electrical connector 1 toward one side of the second group of conductive elements 102, the third frame portion 530 being formed as an L-shaped step portion having a leg portion parallel to the first frame portion 510.

[0139] In some embodiments, in step 03, during the process of forming the first molded part M1, a receiving portion 264 (see FIG. 264 ) for receiving the second portion 520 of the outer frame 500 of the metal outer frame may be configured on one side of the inner housing 260 where the first group of conductive elements 101 are disposed and near the distal end of the first molded part M1. Figure 8 ) is used to position the metal outer frame 500 at a predetermined position relative to the first molded part M1 and the second group of conductive elements 102 assembled together in step 04.

[0140] In some embodiments, during the second injection molding (overmolding) to form the second molded part M2, the first frame portion 510 of the metal frame 500 can be embedded in the injection molded housing 200 formed by the second molded part M2 by molding, and the second frame portion 520 is exposed outside the injection molded housing 200. The third frame portion 530 of the metal frame 500 can be embedded in the injection molded housing 200 formed by the second molded part M2 by molding to form the screw plate hole bracket 250 of the electrical connector 1.

[0141] In some embodiments, during the second injection molding (overmolding) to form the second molded part M2, the support seat 270 can be molded near the distal end of the injection molded housing 200. The outer frame first portion 510 of the metal outer frame 500 is embedded in the support seat 270 of the injection molded housing 200.

[0142] In some embodiments, during the second injection molding (overmolding) to form the second molded part M2, a sealing groove 210 may be formed at a predetermined distance from the support seat portion 270 of the injection-molded housing 200 and at the proximal side of the support seat portion 270, such as Fig.14 shown.

[0143] In some embodiments, during the second injection molding (overmolding) to form the second molded part M2, the sealing holes 220 may be formed on two opposite surfaces of the support seat portion 270 of the injection-molded housing 200 along the thickness direction Z of the electrical connector 1, such as Fig.14 shown.

[0144] In an optional embodiment, the groove surface of the sealing groove 210 and the inner surface of the sealing hole 220 may be roughened by laser engraving (also referred to as laser processing), or electrical discharge machining, or embossing or knurling to form a roughened portion. Fig.10 As shown, a first rough section 230 may be formed on the groove surface of the sealing groove 210. A second rough section 240 may be provided in the region of the sealing hole 220 projected on the terminal assembly 100 along the hole depth direction.

[0145] Step 06: Apply adhesive to the first rough section 230 and the second rough section 240 respectively, and cure the adhesive to form the first seal 300 and the second seal 400 respectively in the first rough section 230 and the second rough section 240. Fig.10 and Fig.15 shown.

[0146] It should be understood that the method of manufacturing an electrical connector of the present application is not limited to the method described in the above specific embodiments, and the various steps described only involve a non-exhaustive enumeration and have no specific order. Technical personnel in this field can adjust the order of the steps according to actual conditions.

[0147] Finally, it should be noted that the above exemplary embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned exemplary embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned exemplary embodiments may still be modified, or some or all of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the exemplary embodiments of the present application.

Claims

1. A terminal assembly (100), characterized in that: include: A first terminal (10) having a first thickness and used for transmitting current and a second terminal (20) used for transmitting a signal, at least a portion of each second terminal (20) having a second thickness smaller than the first thickness.

2. The terminal assembly (100) according to claim 1, characterized in that: The first thickness is in a range of 0.1 mm to 0.35 mm.

3. The terminal assembly (100) according to claim 1, characterized in that: The second terminal (20) has a thinned section (21) after being thinned, and the thickness of the thinned section (21) is the second thickness; The thickness of the second terminal (20) in the non-thinned section (21) is 0.1 mm to 0.25 mm; The thinning thickness of the thinning section (21) is 0.01 mm to 0.10 mm.

4. The terminal assembly (100) according to claim 3, characterized in that: The first terminal (10) includes a proximal terminal portion (11) and a distal terminal portion (12), the second terminal (20) includes a proximal terminal portion (22) and a distal terminal portion (23), the proximal terminal portion (22) of the second terminal (10) includes the thinned section (21), and the thickness of the proximal terminal portion (11) of the first terminal (10) is consistent.

5. The terminal assembly (100) according to claim 1, characterized in that: The first terminal (10) is configured to be capable of providing current delivery of 5A to 10A; The second terminal (20) is configured to be capable of transmitting signals at 5 Gbps to 80 Gbps per second.

6. The terminal assembly (100) according to claim 1, characterized in that: The first terminal (10) and the second terminal (20) both have a corrosion-resistant coating, and the material of the coating is any one of platinum, rhodium, ruthenium, and palladium.

7. An electrical connector, characterized in that: It comprises an injection-molded housing (200) and a terminal assembly (100) according to any one of claims 1 to 6; Wherein, the first terminal (10) and the second terminal (20) are both provided in plurality, and form two rows of terminals arranged vertically along the height direction (Z) of the electrical connector; The injection molded housing (200) is sleeved outside the two rows of terminals and is used to fix the two rows of terminals.

8. The electrical connector according to claim 7, characterized in that: One row of the two rows of terminals is configured as a first group of conductive elements (101) formed by a portion of the first terminals (10) and a portion of the second terminals (20), and the other row of the two rows of terminals is configured as a second group of conductive elements (102) formed by the remaining first terminals (10) and the remaining second terminals (20), wherein the first group of conductive elements (101) and the second group of conductive elements (102) are arranged opposite to each other in a height direction of the electrical connector.

9. The electrical connector according to claim 8, characterized in that: At least a portion of the second terminals forming the first group of conductive elements (101) and at least a portion of the second terminals forming the second group of conductive elements (102) have thinned sections that have been thinned, and the second terminals forming the first group of conductive elements (101) and the second terminals forming the second group of conductive elements (102) and the thinned sections are aligned with each other up and down along the height direction.

10. The electrical connector according to claim 8 or 9, characterized in that: The terminal assembly (100) comprises a shielding member (110) located between the first group of conductive elements (101) and the second group of conductive elements (102), and the shielding member (110) is spaced apart from the first group of conductive elements (101) and the second group of conductive elements (102) by a predetermined distance in the height direction.

11. The electrical connector according to any one of claims 7 to 9, characterized in that: The injection-molded housing (200) includes an inner housing (260), wherein the inner housing (260) defines a receiving portion for accommodating the first terminal (10) and the second terminal (20), and the distal terminal portion (12) of the first terminal (10) and the distal terminal portion (23) of the second terminal (20) are molded into the receiving portion of the inner housing (260) by injection molding.

12. The electrical connector according to claim 11, characterized in that: The shielding member (106) is molded in the accommodating portion of the inner housing (260) by injection molding together with the distal terminal portion (12) of the first terminal and the distal terminal portion (23) of the second terminal (20) forming the first group of conductive elements and the second group of conductive elements.

13. The electrical connector according to claim 7, characterized in that: The electrical connector also includes a first sealing member (300); A sealing groove (210) is arranged along the circumference of the injection-molded housing (200), and the first sealing member (300) is arranged in the sealing groove (210).

14. The electrical connector according to claim 13, characterized in that: The electrical connector further comprises a second sealing member (400); The injection molded housing (200) is provided with a sealing hole (220), the hole depth direction of the sealing hole (220) is perpendicular to the top surface of the terminal assembly (100), and the second sealing member (400) is arranged in the sealing hole (220).

15. The electrical connector according to claim 14, characterized in that: The injection-molded housing (200) is provided with a first rough section (230) at the bottom of the sealing groove (210), which is used to increase the adhesion between the first sealing component (300) and the injection-molded housing (200); The terminal assembly (100) is provided with a second rough section (240) in a region of the sealing hole (220) projected onto the terminal assembly (100) in a hole depth direction, for increasing adhesion between the second sealing member (400) and the terminal assembly (100).

16. The electrical connector according to claim 13, characterized in that: The first seal (300) is an elastically deformable member, and the first seal (300) is configured to generate elastic deformation when the first seal (300) contacts the mounting portion of the electronic device that is compatible with the electrical connector, and to form an interference fit with the mounting portion of the electronic device.

17. The electrical connector according to claim 13, characterized in that: The first seal (300) is configured to have an annular shape extending continuously in a circumferential direction around the proximal end of the injection-molded housing (200), and the first seal (300) is configured to have an attachment surface that forms a form-fit with the sealing groove (210) of the injection-molded housing (200).

18. The electrical connector according to claim 14, characterized in that: The second sealing member (400) is configured to have a substantially square shape, and the second sealing member (400) is configured to have an attachment surface that forms a positive fit with the sealing hole of the injection-molded housing (200).

19. The electrical connector according to claim 14, characterized in that: The electrical connector also includes a metal outer frame (500); The metal outer frame (500) comprises an outer frame first part (510) embedded in the injection-molded housing (200), an outer frame second part (520) covering the outside of the injection-molded housing (200), and an outer frame third part (530) extending from both sides of the outer frame first part (510); Screw plate hole brackets (250) are extended to form two sides of the injection-molded housing (200), and the outer frame third part (530) of the metal outer frame (500) is embedded in the screw plate hole brackets (250).

20. The electrical connector according to claim 19, characterized in that A receiving portion (264) for receiving the first portion (510) of the outer frame is configured near the distal end of the inner housing (260), so that the metal outer frame (500) is positioned at a predetermined position relative to the inner housing (260) and the terminal assembly (100).

21. The electrical connector according to claim 19, characterized in that The sealing hole (220) is formed in the central portion of the injection-molded housing (200) connected to the screw plate hole bracket (250), and before the second sealing member (400) is arranged in the sealing hole (220), a corresponding one of the first terminal (10) and the second terminal (20) is exposed through the sealing hole (220).

22. The electrical connector according to claim 21, characterized in that The sealing groove (210) is formed at a proximal portion of the injection-molded housing (200) at a predetermined position away from the central portion.

23. A method for manufacturing an electrical connector according to any one of claims 7 to 22, the method comprising the following steps: Step 01): providing a plurality of first terminals (10) and a plurality of second terminals (20), and forming a first group of conductive elements (101) with a portion of the first terminals (10) and a portion of the second terminals (20), and forming a second group of conductive elements (102) with the remaining first terminals (10) and the remaining second terminals (20); Step 02): providing a shielding member (110); Step 03): placing the first group of conductive elements (101) and the shielding element (110) in a first injection mold and performing a first injection molding to form a first molded part (M1); Step 04): Assembling the second group of conductive elements (102) onto the first molded part (M1), and positioning the second group of conductive elements (102) at a predetermined position relative to the first molded part (M1); as well as Step 05): Provide a metal outer frame (500), and position the metal outer frame (500) at a predetermined position relative to the first molded part (M1) and the second group of conductive elements (102), place the metal outer frame (500), the second group of conductive elements (102) and the first molded part (M1) in a second injection mold, and perform a second injection molding to form a second molded part (M2), wherein the second molded part (M2) includes an injection molded shell (200).

24. The method according to claim 23, characterized in that In the step 03), a mounting groove for assembling the second group of conductive elements (102) is integrally molded on the first molded part (M1) on the side of the shielding part (110) opposite to the first group of conductive elements (101).

25. The method according to claim 24, characterized in that The mounting slots include a plurality of first slots (261) near the proximal end side of the first molded piece (M1), a plurality of third slots (263) near the distal end side of the first molded piece (M1), and a plurality of second slots (262) arranged between the plurality of first slots (261) and the plurality of third slots (263) along the mating direction (Y) of the electrical connector (1); the plurality of first slots (261), the plurality of second slots (262) and the plurality of third slots (263) are aligned with each other in a one-to-one correspondence in the mating direction (Y) of the electrical connector (1) for accommodating and positioning a corresponding terminal in forming the second group of conductive elements (102).

26. The method according to claim 23, characterized in that The first molded part (M1) formed in the step 03) includes an inner shell (260), and a receiving portion (264) is constructed on one side of the inner shell (260) where the first group of conductive elements (101) are provided and near the distal end of the first molded part (M1).

27. The method according to claim 26, characterized in that In the step (05), providing a metal outer frame (500) includes configuring the metal outer frame (500) to have: a first outer frame portion (510) as the central portion of the metal outer frame (500); a second outer frame portion (520) extending from the first outer frame portion (510) along the mating direction (Y) toward the distal end of the electrical connector (1); and a third outer frame portion (530) cantilevered from both sides of the first outer frame portion (510) in the width direction (X) of the electrical connector (1) along the height direction (Z) of the electrical connector (1), the third outer frame portion (530) being formed as an L-shaped step portion having a leg portion parallel to the first outer frame portion (510), the second outer frame portion (520) being accommodated in the accommodation portion (264) so ​​that the metal outer frame (500) is positioned at a predetermined position relative to the first molded piece (M1) and the second group of conductive elements (102) assembled together in the step (04).

28. The method according to claim 23, characterized in that In the step 05), during the second injection molding to form a second molded part (M2), a support seat portion (270) is formed near the distal end of the injection molding shell (200), wherein a sealing groove (210) is formed on the proximal side of the support seat portion (270) at a predetermined distance from the support seat portion (270), and a sealing hole (220) is formed on two opposite surfaces of the support seat portion (270) along the height direction (Z) of the electrical connector (1).

29. The method according to claim 28, characterized in that The method further comprises the step of roughening the electrical connector, the sealing groove (210) and the sealing hole (220) to form a roughened portion.

30. The method according to claim 29, characterized in that The method further comprises: applying adhesive to the roughened portion of the sealing groove and / or the roughened portion of the sealing hole to form a first sealing member (300) in the sealing groove and / or a second sealing member (400) in the sealing hole, respectively.

31. The method according to claim 23, characterized in that In the step 03), the first group of conductive elements (101) and the shielding member (110) are spaced apart from each other in the height direction (Z) of the electrical connector (1).

32. The method according to claim 31, characterized in that In the step 04), the second group of conductive elements (102) are positioned at a predetermined position relative to the first molded member (M1) in such a manner that the first group of conductive elements (101) are spaced apart from each other in the height direction (Z) of the electrical connector (1) and the shielding member (110) is located between the first group of conductive elements (101) and the second group of conductive elements (102).

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