Connector, connector assembly, and method of manufacturing a connector

Abstract

The application discloses a connector, a connector assembly and a connector manufacturing method. The connector comprises an insulating base, a plurality of terminals mounted on the insulating base and a reinforcing metal piece. The insulating base comprises: a pair of half body portions integrally injection molded with the plurality of terminals; a body base portion formed by a second insert molding, comprising a pair of base connecting portions and a pair of body end portions integrally formed on both sides of the base connecting portions; wherein each base connecting portion forms a pair of opposite parallel and spaced side walls together with the half body portions; the pair of body end portions are formed at both ends of the insulating base and jointly enclose the pair of side walls to form the insulating base with a through hole in the middle portion; and the reinforcing metal piece is mounted on the body end portions. The application integrally injection molds the half body portions into the connector as a whole through the base connecting portions, and the production process flow is greatly simplified through twice injection molding, the process complexity and production cost are reduced, and the overall structural strength of the connector is effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of electrical connector technology, and particularly relates to connectors, connector assemblies and connector manufacturing methods. Background Technology

[0002] To achieve synchronous transmission of more signals within limited installation space, connectors with four rows of conductive terminals have become the mainstream solution in the industry. These connectors increase signal transmission density by vertically stacking terminals, effectively alleviating the contradiction between high-density connections and limited layout space. However, these connectors with four rows of high-density staggered terminals have a precise structure and small size, and their manufacturing and structural design still face many technical challenges, making it impossible to complete production using the one-time injection molding process of traditional dual-row connectors.

[0003] The technical solution disclosed in patent document "CN118249102A Connector, Connector Assembly, and Connector Manufacturing Method" requires a process where two rows of terminals are first fixed in a first injection molding to form two half-body connectors with embedded portions at their ends. A second injection molding then combines the two half-body connectors with a reinforcing metal component into a single unit. This two-stage injection molding method is prone to insufficient structural integrity and weak strength at the joint of the insulating adhesive (embedded portion), making it susceptible to breakage and detachment during subsequent assembly or end-use, thus affecting product reliability. Therefore, there is an urgent need to optimize the existing manufacturing method to further reduce production costs, simplify the process, and improve structural strength while ensuring connector connection accuracy and product consistency. Summary of the Invention

[0004] To address the issues of insufficient structural integrity and weak strength in existing four-row connectors using a two-stage injection molding process, the present invention aims to provide a connector, connector assembly, and connector manufacturing method. By designing a "two-stage insert molding process," the process flow is simplified while ensuring product assembly accuracy and structural reliability, thus meeting the needs of miniaturized, high-density electronic products.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0006] A connector having an insulating base, a plurality of terminals mounted on the insulating base, and a reinforcing metal member, the insulating base comprising:

[0007] A pair of half-body portions, each half-body portion being formed integrally with multiple terminals through a first insert forming process to form a pair of half-body portions;

[0008] The body base is formed by a second insert, which connects a pair of half-body parts into a whole; the body base includes a pair of base connecting parts and a pair of body ends integrally formed on both sides of the base connecting parts;

[0009] Each of the aforementioned base connection portions is attached to the half-body portion, and together with the half-body portion forms a pair of relatively parallel and spaced sidewalls; the pair of body ends are formed at both ends of the insulating base, and together with the pair of sidewalls, they enclose an insulating base with a through hole in the middle; the reinforcing metal member is installed at the body end;

[0010] A pair of half-body structures are mirror-symmetrical, each including a base plate extending along the length of the connector and a vertical wall protruding above the base plate; a plurality of terminals are held side by side along the length at a certain interval on the vertical wall and are alternately arranged in opposite orientations.

[0011] Each half-body also includes a clearance structure, which is arranged along the length of the vertical wall portion; each base connection portion of the body base is filled into the clearance structure during the second insert forming, so that the base connection portion and the half-body portion are integrated into one.

[0012] Furthermore, the clearance structure of the half-body is a groove provided in the vertical wall portion and on the side opposite to the side where the through hole is located. The groove extends and penetrates along the length direction of the vertical wall portion.

[0013] Furthermore, the terminal includes a fixing part, a contact part connected to one end of the fixing part, and a tail part connected to the other end of the fixing part;

[0014] Each half-body has a first skirt portion on the inner side of the bottom plate facing the through hole, and the tail of some terminals is embedded in the first skirt portion; the base connecting portion extends outward to form a second skirt portion; the tail of another portion of terminals is embedded in the second skirt portion, and the first skirt portion and the corresponding second skirt portion of each half-body are symmetrically provided on both sides of the same side wall.

[0015] The distance between adjacent terminals of the tail within the first skirt portion is equal to the distance between adjacent terminals of the tail within the second skirt portion, and both are twice the distance between adjacent terminals on the vertical wall portion.

[0016] Furthermore, the base of the body has a frame-shaped structure, and a pair of reinforcing metal parts and a pair of half-body parts are combined into one body in a completely encircling and insert-forming manner from the outside.

[0017] Among them, a pair of base connecting portions extend along the length direction of the body base, and a pair of body ends extend along the width direction of the body base;

[0018] The reinforcing metal part is fitted and fixed to the end of the body.

[0019] The present invention also provides a connector assembly, including the connector described above and a mating connector that engages with the connector.

[0020] The present invention also provides a method for manufacturing a connector, for manufacturing the connector as described above, comprising the following steps:

[0021] S1. First insert forming: Take the pre-prepared terminal strips carrying terminals and arrange them opposite each other. Place the terminals in the first forming mold and form the half body and half body by the first injection molding.

[0022] S2. First cut: Cut off the terminal strip at the tail of one side of the terminal, and keep the terminal strip on the other side as the positioning reference for the next step;

[0023] S3. Second insert forming: Take a pair of half-body parts connected with terminal strips and set them in a mirror-image state at a predetermined middle position of the second forming mold, and place the housing strips connected with a pair of reinforcing metal parts at predetermined two sides of the second forming mold, so that the half-body parts and the reinforcing metal parts form a frame structure, injection mold the body base, combine the base connecting part with the half-body parts, and combine the body end with the reinforcing metal parts to form a connector semi-finished product;

[0024] S4. Second cutting: Cut off the remaining terminal strip from the tail of the terminal and cut off the housing strip from the connection of the pair of reinforcing metal parts to obtain the finished connector.

[0025] Preferably, in step S1, a metal carrier belt for auxiliary positioning is also provided; in step S2, the metal carrier belt is retained as a positioning reference for subsequent processes.

[0026] Preferably, step S4 further includes cutting off the metal carrier tape.

[0027] Compared with the prior art, the beneficial effects of the connector, connector assembly and connector manufacturing method provided by the present invention are as follows: by setting a void structure in the half body after the first insert molding to provide a plastic flow channel, and forming the body base by the second insert molding, the risk of breakage of the core bonding part is greatly reduced, and the overall process is simple and cost is reduced.

[0028] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0029] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0030] Figure 1A schematic diagram of the process flow of the connector manufacturing method provided in this embodiment of the invention;

[0031] Figure 2 The connector manufacturing method provided in this embodiment of the invention includes a prefabrication step before step S1 and a schematic diagram of the state after the terminals are placed.

[0032] Figure 3 The connector manufacturing method provided in this embodiment of the invention, after step S1, is shown in the schematic diagram of the forming state of the half part;

[0033] Figure 4 The connector manufacturing method provided in this embodiment of the invention, after step S3, shows the forming state of the connector semi-finished product;

[0034] Figure 5 The connector manufacturing method provided in this embodiment of the invention, after step S4, shows the bottom view of the connector;

[0035] Figure 6 A schematic diagram of the connector from the front view provided in an embodiment of the present invention;

[0036] Figure 7 Exploded view of the connector provided in this embodiment of the invention;

[0037] Figure 8 A schematic diagram of the structure of the connector body base provided in an embodiment of the present invention;

[0038] Figure 9 A schematic diagram of the structure of the connector half-body provided in an embodiment of the present invention;

[0039] Figure 10 An exploded view of the connector half-body provided in an embodiment of the present invention;

[0040] Figure 11 A schematic diagram of the structure of the half-body of the connector provided in an embodiment of the invention from another perspective;

[0041] The attached diagram lists the components represented by each number as follows:

[0042] 10-Half-body section, 101-Half-body section, 1010-Base plate section, 1011-Vertical wall section, 10100-First skirt section, 102-Air-proof structure, 13-Insulating base, 130-Side wall;

[0043] 20-Terminal, 201-Contact, 202-Fixing part, 203-Tail;

[0044] 30-Base of the main body, 300-Through hole, 302-Base connecting part, 3020-Second skirt part, 303-End of the main body;

[0045] 40-Reinforcing metal part, 401-Top plate part, 402-Inner wall plate part, 403-Outer wall plate part, 404-Inner bottom plate part, 405-Outer bottom plate part, 406-Weld foot part;

[0046] 50 - Terminal strip, 501 - Reference hole position. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] First refer to Figures 6 to 11 The diagram shows a structural schematic of the connector of this application. The present application provides a connector including an insulating base 13, a plurality of terminals 20 mounted on the insulating base 13, and a reinforcing metal part 40.

[0049] like Figures 7-10 The insulating base 13 includes: a pair of half-body portions 101 and a body base 30. Each half-body portion 101 is formed by a first insert and integrally forms a half-body portion 10 with a plurality of terminals 20. The body base 30 is formed by a second insert and connects the pair of half-body portions 10 into a whole. The body base 30 includes a pair of base connecting portions 302 and a pair of body ends 303 integrally formed on both sides of the base connecting portions 302. Each base connecting portion 302 is attached to the half-body portion 101 and together with the half-body portion 101 forms a pair of relatively parallel and spaced sidewalls 130. The pair of body ends 303 are formed at both ends of the insulating base 13 and together with the pair of sidewalls 130 enclose an insulating base 13 with a through hole 300 in the middle.

[0050] Reference Figure 10 The half-body 101 includes a base plate 1010 extending along the length direction of the connector and a vertical wall 1011 protruding above the base plate 1010. Multiple terminals 20 are arranged side by side on the vertical wall 1011 at a certain interval along the length direction and are alternately arranged in opposite directions. The connector adopts multiple rows of terminals 20 arranged in opposite directions, which realizes high-density signal transmission in a limited space, ensures sufficient electrical clearance, perfectly adapts to the development trend of "thin and light, high density" of modern electronic products, and has strong practicality. Each half-body 10 is arranged in a mirror image opposite to the body base 30.

[0051] Continue to refer to Figure 10Each half-body 101 also includes a clearance structure 102, which is provided along the length direction of the vertical wall portion 1011; each base connection portion 302 of the body base portion 30 is filled into the clearance structure 102 during the second insert forming, so that the base connection portion 302 is integrated with the half-body portion 10; see reference Figure 9 The clearance structure 102 of the half body 101 can be a groove provided in the vertical wall 1011 and on the side opposite to the side where the through hole 300 is located. The groove extends and penetrates along the length of the vertical wall 1011. Of course, it can also be a clearance structure of other designs, not limited to a groove.

[0052] As a preferred method, refer to Figure 11 The depth n of the void structure 102 is at least half the height h of the half-body 101, and the width m of the void structure 102 is at least half the width w of the half-body 101. The depth n and width m of the void structure 102 form a sufficiently large, longitudinally extending "dovetail groove" or "anchor hole." During the second insert molding, the molten insulating material fills this void structure 102, and after solidification, it forms an embedded reinforcing rib that runs through the entire length of the connector. This large-sized filling structure ensures that the body base 30 and the half-body 101 are not merely surface-bonded, but physically interlocked. This significantly improves the bonding force between the body base 30 and the half-body 101, preventing them from peeling or delaminating under insertion / extraction forces, torque, or thermal stress. Moreover, the larger void structure 102 provides a smooth channel for the flow of molten plastic during the second injection molding, which is beneficial for rapid filling and pressure holding, reducing bubbles or voids caused by insufficient filling, and improving product yield.

[0053] For ease of description, the two sides of the half-body 101 corresponding to the contact portion 201 are designated as the positioning side and the splicing side, respectively. When a pair of half-body portions 10 are arranged in a mirror-symmetrical manner, the internal clearance structure 102 is located on the side of the pair of half-body portions 10 that is far apart from each other (i.e., the positioning side). Since the clearance structure 102 is large in size and located on the outside, it can effectively resist the warping deformation caused by uneven shrinkage of plastic after injection molding, ensuring the overall flatness and dimensional stability of the connector.

[0054] Continue to refer to Figure 10The terminal 20 includes a fixing part 202, a contact part 201 connected to one end of the fixing part 202, and a tail part 203 connected to the other end of the fixing part 202; the bottom plate part 1010 of each half body 101 is provided with a first skirt part 10100 facing the inside of the through hole 300, and the tail part 203 of some terminals 20 is embedded in the first skirt part 10100; the base connecting part 302 extends outward to form a second skirt part 3020; the tail part 203 of another part of the terminals 20 is embedded in the second skirt part 3020, and the first skirt part 10100 and the corresponding second skirt part 3020 of each half body 101 are symmetrically provided on both sides of the same side wall 130.

[0055] The design of the first skirt portion 10100 and the second skirt portion 3020 mainly solves problems such as insecure terminal fixing, positional misalignment, insufficient electrical creepage distance, and assembly difficulties, significantly improving the mechanical reliability, electrical safety, and manufacturability of connectors or electronic modules.

[0056] Reference Figure 5 In a preferred configuration, the spacing between adjacent terminals 20 of the tail portion 203 within the first skirt portion 10100 is equal to the spacing between adjacent terminals 20 of the tail portion 203 within the second skirt portion 3020, and both are twice the spacing between adjacent terminals 20 on the vertical wall portion 1011. The increased spacing of the tail portion 203, doubling the terminal spacing on the half-body portion 10, directly increases the electrical clearance (shortest distance in air) and creepage distance (shortest distance on insulating surfaces) between adjacent tail portions. In high-voltage, humid, or polluted environments, this significantly reduces the risk of leakage, arc flashover, or short circuits, improving the connector's withstand voltage rating and long-term reliability.

[0057] Continue to refer to Figure 9 and combined Figure 6 Two half-body portions 101 with terminals 20 form a pair of half-body portions 10. The pair of half-body portions 10 are mirror-symmetrical and spaced apart from each other. The contact portions 201 of the two rows of terminals 20 are exposed on both sides of the vertical wall portion 1011 to ensure effective electrical contact with the mating connector (not shown in the figure). This structure, which alternately arranges two rows of terminals 20 facing opposite directions on a vertical wall portion 1011, not only achieves a high-density arrangement of terminals 20 in the length direction of the connector, but also further increases the insulation distance between the contact portions 201 of two adjacent terminals 20, thereby effectively reducing the risk of electrical breakdown between adjacent terminals.

[0058] As a preferred embodiment, the base 30 of the body has a frame-shaped structure, and a pair of reinforcing metal parts 40 and a pair of half-body parts 10 are combined into one body in a completely encircling and insert-forming manner from the outside. Among them, a pair of base connecting parts 302 extend along the length direction of the base 30 of the body, and a pair of body ends 303 extend along the width direction of the base 30 of the body. The reinforcing metal parts 40 are fitted and fixed on the body ends 303.

[0059] like Figures 6-8 A pair of reinforcing metal parts 40 are symmetrically disposed at both ends of a pair of half-body parts 10 in the width direction, forming a frame structure with the pair of half-body parts 10; the body base 30 is formed by a second insert molding method, the body base 30 surrounds and connects the pair of half-body parts 10 and the pair of reinforcing metal parts 40 to form a connector, and the middle of the body base 30 is provided with a through hole 300 for the female connector to be inserted.

[0060] By integrally injection molding reinforcing metal parts 40 at both ends of the half-body 101 in the width direction, the body ends 303 at both ends of the body base 30 can be reinforced, greatly enhancing the overall structural strength of the connector and preventing deformation or breakage of the extension. This makes the two half-body parts 10 form a solid whole, improving the connection reliability of the connector and effectively avoiding loosening problems under high vibration and high impact scenarios.

[0061] In addition, the reinforcing metal part 40 of this application is designed as a seamless shell structure that fully covers the end 303 of the main body, which can form an all-round coverage, protecting the base 30 of the main body, effectively blocking external electromagnetic interference, and preventing internal signals from radiating outward, thus meeting the electromagnetic compatibility requirements of consumer electronics products and adapting to high-density signal transmission scenarios.

[0062] like Figure 5 As shown, the inner bottom plate portion 404 of the reinforcing metal part 40 is partially exposed on the lower end face of the body base 30 for electrical connection with the circuit board. By exposing the lower end face of the reinforcing metal part 40 outside the body base 30, it can be directly soldered to the circuit board. This not only achieves grounding connection to improve the shielding effect of high-frequency signals, but also serves as auxiliary positioning and anti-tilt support during SMT assembly, significantly improving soldering yield. Simultaneously, this structure directly transfers the mechanical stress of insertion and removal to the circuit board, effectively protecting the solder joints of the internal terminals 20 and greatly enhancing the long-term reliability of the connector.

[0063] As a preferred embodiment, the reinforcing metal part 40 is a seamless shell that fully covers the end portion 303 of the main body base 30 and covers part of the half-body 101. Its overall structure is adapted to the shape of the two ends of the main body base 30 in the length direction. Specifically, it includes an inverted U-shaped top plate portion 401 that fits and covers the top surface of the entire end portion 303, an inner wall plate portion 402 that extends vertically downward from the inner side of the top plate portion 401 and covers part of the inner side wall of the main body base 30, an outer wall plate portion 403 that extends vertically downward from the outer side of the top plate portion 401 and covers part of the outer side wall of the main body base 30, an outer bottom plate portion 405 that extends horizontally outward from the outer wall plate portion 403, and an inner bottom plate portion 404 that extends horizontally from the inner wall plate portion 402 in the direction of the through hole 300. The reinforcing metal part 40 is integrally formed into a seamless shell structure, which can fully cover the end of the body base 30, effectively improving the electromagnetic shielding performance of the connector. The outer bottom plate part 405 is also provided with solder feet 406 extending outward for soldering to the circuit board. The reinforcing metal part 40 fixes the two halves 10 into a solid whole, realizing the assembly and fixation of the four-row connector with a simpler and more reliable process, reducing production costs.

[0064] This embodiment also protects a connector assembly, including the connector described above and a mating connector that engages with the connector. The mating connector is capable of engaging with the connector for connection, and its specific structure is not specifically limited here.

[0065] like Figures 1 to 5 As shown, the present invention also provides a manufacturing method for manufacturing the above-mentioned connector, comprising the following steps:

[0066] Material strip preparation and pre-assembly: According to product design requirements, the required reinforcing metal parts 40 and terminals 20 are prepared separately. The reinforcing metal parts 40 are made of stainless steel strip as the base material for the housing material strip. The reinforcing metal parts 40 are manufactured through a secondary stretching and forming process to provide all-around protection for both ends of the connector. The solder feet 406 of the reinforcing metal parts 40 are integrally connected to the housing material strip.

[0067] Terminals 20 are made of copper alloy strip, which combines conductivity and elasticity, and are formed on the strip using a high-precision continuous stamping process. Several terminals 20 are arranged at equal intervals on the terminal strip 50. To ensure the relative positional accuracy of each component, the tail 203 of all terminals 20 are integrally connected to the terminal strip 50 before injection molding. Furthermore, after the terminals 20 are stamped, the contact portion 201 is electroplated, using a tin or gold plating layer.

[0068] S1: First insert molding: Take a pair of terminal strips 50 and arrange them facing each other, and adjust the relative positions of the two terminal strips 50 so that the two rows of terminals 20 on the two terminal strips 50 are arranged in opposite directions and staggered; then, according to the preset reference hole positions 501 on the terminal strips 50, the terminal strips 50 are riveted and fixed by an automated riveting device to form the component to be injection molded.

[0069] Terminal 20 is placed into the cavity of the first injection mold. The contact portion 201 of terminal 20 is shielded and protected to prevent the injection molding material from covering the contact portion 201 and affecting subsequent electrical contact. A protruding structure (not shown in the figure) is set in the cavity of the first injection mold. The purpose is to form a void structure 102 on the half body 101 during the first injection molding. Then, insulating plastic is injected into the cavity through insert injection molding. During insert injection molding, the injection temperature is controlled at 220-250℃ and the injection pressure is 80-100MPa so that both rows of terminals 20 are firmly bonded to the injection-molded half body 101, forming a half body 10. The two sides of the one-piece molded half body 101 corresponding to the contact portion 201 are the positioning side and the splicing side, respectively.

[0070] S2: First cut: The injection-molded half part 10 is transferred to the precision punching station. The punching accuracy is controlled at ±0.01mm. The terminal material strip 50 on the splicing side of the half part 10 is removed by the punching process, and only the terminal material strip 50 on the positioning side of the half part 10 is retained. The retained terminal material strip 50 serves as the positioning reference for subsequent splicing and positioning processes to ensure the positioning accuracy of subsequent processes.

[0071] S3: Second Insert Forming: The automated equipment picks up the half-body 10 and rotates it 180° around the central axis of the connector insertion / removal direction, so that it is aligned with another identical half-body 10 at a preset spacing (i.e., aligned at a preset spacing of 0.8-1.2mm). Using the reference holes 501 on the terminal strip 50 retained on the positioning side, the half-body 10 is fixed by riveting, completing the secondary positioning. The two pre-fabricated reinforcing metal parts 40 are then positioned on the two half-body parts by the automated positioning equipment. The two ends of the length direction of 10 are enclosed to form a rectangular frame structure with a terminal arrangement structure; the two half-body parts 10 and a pair of reinforcing metal parts 40 are placed in the second injection mold. During the second insert injection molding, the injection temperature can be controlled at 220-250℃ and the injection pressure at 80-100MPa. Molten insulating material such as synthetic resin is filled into the second injection mold and fills the two half-body parts 10 and the two reinforcing metal parts 40 along the void structure 102, so that they are enclosed to form a connector semi-finished product.

[0072] S4: Second Cutting: After the second injection molding is completed, the remaining terminal strip 50 and housing strip are cut and removed by precision cutting equipment, and the cut surfaces are deburred to obtain the finished connector.

[0073] Optionally, in step S1, a metal carrier strip is also provided for auxiliary positioning. In step S2, the metal carrier strip is retained as a positioning reference for subsequent processes. Throughout the entire process, the reference holes on each material strip and the positioning holes on each metal carrier strip are used to adapt to automated and precise alignment, ensuring that the relative positional accuracy of each component is controllable and improving product consistency. Furthermore, step S4 also includes cutting off the metal carrier strip.

[0074] After step S4, the process also includes visual inspection and electrical performance testing of the finished product according to industry standards. Visual inspection checks for defects such as missing materials, burrs, bent terminals, welding deformation, and loose reinforcing metal parts. Electrical performance testing measures key indicators such as contact resistance, insulation resistance, and withstand voltage. Once the test is passed, the product is considered a qualified finished product.

[0075] This invention, through its "two-stage injection molding" structural design, simplifies the production process and reduces complexity and cost by creating a clearance structure 102 during the first insert injection molding to form a connection channel for the second insert injection molding, thus forming the connector. This achieves high-density arrangement of multiple rows of terminals 20 while effectively improving the connector's connection reliability and overall structural strength, resulting in excellent electromagnetic shielding. Furthermore, the entire process utilizes metal carrier tapes and various material strips for positioning and transport. Based on pre-set positioning holes on the metal carrier tapes and pre-set reference holes 501 on various material strips, automated equipment completes riveting, injection molding, punching, splicing, and welding processes. The alignment accuracy between each material strip and its corresponding metal carrier tape is ±0.008mm, and the transport speed of each metal carrier tape is controlled at 5-8m / min, reducing the cumulative error caused by positioning reference conversion and ensuring that the relative position accuracy of each component is ≤±0.01mm, thus meeting the product's dimensional and assembly accuracy requirements.

[0076] The embodiments described above only illustrate some implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. 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 protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A connector comprising an insulating base and a plurality of terminals mounted on the insulating base, and a reinforcing metal member, characterized in that, The insulating base includes: A pair of half-body portions, each half-body portion being formed integrally with multiple terminals through a first insert forming process to form a pair of half-body portions; The body base is formed by a second insert, which connects a pair of half-body parts into a whole; the body base includes a pair of base connecting parts and a pair of body ends integrally formed on both sides of the base connecting parts; Each of the aforementioned base connection portions is attached to the half-body portion, and together with the half-body portion forms a pair of relatively parallel and spaced sidewalls; the pair of body ends are formed at both ends of the insulating base, and together with the pair of sidewalls, they enclose an insulating base with a through hole in the middle; the reinforcing metal member is installed at the body end; A pair of half-body structures are mirror-symmetrical, each including a base plate extending along the length of the connector and a vertical wall protruding above the base plate; a plurality of terminals are held side by side along the length at a certain interval on the vertical wall and are alternately arranged in opposite orientations. Each half-body also includes a clearance structure, which is arranged along the length of the vertical wall portion; each base connection portion of the body base is filled into the clearance structure during the second insert forming, so that the base connection portion and the half-body portion are integrated into one.

2. The connector according to claim 1, characterized in that, The clearance structure of the half-body is a groove provided in the vertical wall portion and on the side opposite to the side where the through hole is located. The groove extends and penetrates along the length direction of the vertical wall portion.

3. The connector according to claim 1, characterized in that, The terminal includes a fixing part, a contact part connected to one end of the fixing part, and a tail part connected to the other end of the fixing part; Each half-body has a first skirt portion on the inner side of the bottom plate facing the through hole, and the tail of some terminals is embedded in the first skirt portion; the base connecting portion extends outward to form a second skirt portion; the tail of another portion of terminals is embedded in the second skirt portion, and the first skirt portion and the corresponding second skirt portion of each half-body are symmetrically provided on both sides of the same side wall. The distance between adjacent terminals of the tail within the first skirt portion is equal to the distance between adjacent terminals of the tail within the second skirt portion, and both are twice the distance between adjacent terminals on the vertical wall portion.

4. The connector according to claim 1, characterized in that, The base of the main body has a frame-shaped structure, and a pair of reinforcing metal parts and a pair of half-body parts are combined into one body in a completely encircling and insert-forming manner from the outside. Among them, a pair of base connecting portions extend along the length direction of the body base, and a pair of body ends extend along the width direction of the body base; The reinforcing metal part is fitted and fixed to the end of the body.

5. A connector assembly, characterized in that, It includes the connector according to any one of claims 1-4 and the mating connector that engages with the connector.

6. A method for manufacturing a connector, for manufacturing a connector as described in any one of claims 1-4, characterized in that, include: S1. First insert forming: Take the pre-prepared terminal strips carrying terminals and arrange them opposite each other. Place the terminals in the first forming mold and form the half body and half body by the first injection molding. S2. First cut: Cut off the terminal strip at the tail of one side of the terminal, and keep the terminal strip on the other side as the positioning reference for the next step; S3. Second insert forming: Take a pair of half-body parts connected with terminal strips and set them in a mirror-image state at a predetermined middle position of the second forming mold, and place the housing strips connected with a pair of reinforcing metal parts at predetermined two sides of the second forming mold, so that the half-body parts and the reinforcing metal parts form a frame structure, injection mold the body base, combine the base connecting part with the half-body parts, and combine the body end with the reinforcing metal parts to form a connector semi-finished product; S4. Second cutting: Cut off the remaining terminal strip from the tail of the terminal and cut off the housing strip from the connection of the pair of reinforcing metal parts to obtain the finished connector.

7. The connector manufacturing method according to claim 6, characterized in that, In step S1, a metal carrier belt for auxiliary positioning is also provided; in step S2, the metal carrier belt is retained as a positioning reference for subsequent processes.

8. The connector manufacturing method according to claim 7, characterized in that, Step S4 also includes cutting off the metal carrier tape.

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