TW202335378A - Electrical connector structure, method of manufacturing the same, and electrical connector assembly - Google Patents

Abstract

An electrical connector structure includes an insulating housing and an electrical connection structure. The insulating housing has at least one accommodating groove. The electrical connection structure includes an insulating base material and a metal layer disposed on the surface of the insulating base material, and the metal layer forms a circuit. The electrical connection structure is arranged in the accommodating groove of the insulating housing, and at least one end of the electrical connection structure extends to the outside of the accommodating groove, and at least one end has a bending structure, and the metal layer is located on an outer side of the bending structure relative to in the insulating base material.

Description

Electrical connector structure, manufacturing method and electrical connector assembly

The present invention relates to an electrical connector structure, its manufacturing method and an electrical connector assembly. In particular, it relates to an electrical connector structure formed by embedding and ejecting a flexible circuit structure, its manufacturing method and an electrical connector assembly. Connector assembly.

In modern electronic equipment, printed circuit boards (PCBs) need to be electrically connected through connectors to achieve signal transmission. Currently, most electrical connectors are through flexible printed circuits (FPC) or flexible flat panels. An electrical connector composed of flexible flat cable (FFC), conductive terminals, connection shells and other structures. Although the electrical connector can achieve electrical connection and use, it still has the following shortcomings. For example, FPC or FFC are often connected to the conductive terminals of the electrical connector circuit board by welding or gluing, but the welding area is very small, difficult to weld and easy to short-circuit. Furthermore, FPC or FFC are both flexible circuit structures. Therefore, it is more difficult to position and support, so the assembly and manufacturing methods are more difficult and cumbersome.

Furthermore, due to the above-mentioned characteristics of FPC or FFC, some existing manufacturing processes of electrical connectors first stamp, fit, and weld metal strips to form conductive terminals, and then combine the FPC or FFC with the conductive terminals. Assembled into an insulated connector body, however, this method not only consumes a lot of time and material costs, but the volume of the final electrical connector cannot be effectively reduced due to the structural limitations, resulting in the size of the electronic device being unable to be reduced. Another breakthrough development.

Therefore, how to solve the above conventional problems and deficiencies is an urgent research and improvement direction that the applicant of the present invention and related manufacturers engaged in this industry want to research and improve.

In view of this, an object of the present invention is to provide an electrical connector structure and a manufacturing method thereof. It uses the existing flexible circuit board (flexible printed circuit, FPC) or flexible flat cable (flexible flat cable, FFC) to be directly placed in the mold to form an insulating shell by insert molding, which can simplify production. The manufacturing process of electrical connectors can also form multiple contact points through the design of the bending structure of the electrical connection structure, thereby replacing the metal conductive terminals of traditional electrical connectors, eliminating the need for additional assembly of metal conductive terminals, insulating shells, etc. The parts can be formed into an electrical connector, which can reduce process time and reduce the volume space of the electrical connector, effectively improving the problem of large and limited volume of traditional electrical connectors, achieving the advantages of volume reduction, time saving and cost reduction.

An embodiment of the electrical connector structure of the present invention includes at least one insulating housing and at least one electrical connection structure. The insulating shell has a receiving groove. The electrical connection structure includes an insulating base material and a metal layer disposed on the surface of the insulating base material, and the metal layer forms a circuit. The electrical connection structure is arranged in the accommodation groove of the insulating shell, and at least one end of the electrical connection structure extends to the outside of the accommodation groove, and at least one end has a bending structure, and the metal layer is located there relative to the insulating base material. The outer side of the bending structure; the electrical connection structure and the insulating shell system are combined and arranged by insert molding; further, the electrical connection structure is either a flexible circuit board or a flexible flat cable.

In another embodiment, the insulating housing further has at least one protruding portion. The at least one protruding portion is disposed on the side of the insulating housing and adjacent to the accommodating groove. The other end of the electrical connection structure extends to the at least one protruding portion. , and the insulating base material is located between the metal layer and the convex part.

In another embodiment, the insulating housing further has at least one recess. The at least one recess is provided on the side of the insulating housing, and the accommodating groove is located at the bottom of the at least one recess. The other end of the electrical connection structure extends to at least A recess, and the insulating base material is located between the metal layer and the recess.

In another embodiment, one side wall of the recess is flush with the wall of the accommodating groove, the other end of the electrical connection structure extends horizontally from the accommodating groove to the side wall of the recess, and the insulating base material is located between the metal layer and the recess. between the side walls of the recess.

In another embodiment, it further includes a plurality of the electrical connection structures, wherein the insulating shell has a plurality of accommodating grooves, and the electrical connection structures are respectively disposed in the accommodating grooves.

In another embodiment, it further includes a plurality of electrical connection structures and a plurality of insulating casings, wherein each of the insulating casings has an accommodating slot, and the electrical connection structures are respectively arranged in the accommodating slots. in the groove, and the sides of each insulating shell are closely connected.

In another embodiment, the insulating shell systems are closely connected by the sides of the insulating shells in an adhesive manner.

In another embodiment, each of the insulating shell systems is tightly connected by the sides of each of the insulating shells in a snap-on manner.

In another embodiment, one long side of the insulating housing is provided with at least one female buckle; and the other long side of the insulating housing is provided with at least one male buckle corresponding to the female buckle. pieces.

The invention provides an electrical connector assembly, which includes a first electrical connector and a second electrical connector; wherein, the first electrical connector includes an insulating shell and an electrical connection structure, and the insulating shell has An accommodating groove, the electrical connection structure includes an insulating base material and a metal layer disposed on the surface of the insulating base material, and the metal layer forms a circuit. The electrical connection structure is arranged in the accommodation groove of the insulating shell, and at least one end of the electrical connection structure extends to the outside of the accommodation groove, and at least one end has a bending structure, and the metal layer is located there relative to the insulating base material. The outer side of the bending structure; the electrical connection structure and the insulating shell system are combined and arranged in an insert molding manner. Further, the electrical connection structure is either a flexible circuit board or a flexible flat cable, wherein The insulating housing further has at least one protruding portion. The at least one protruding portion is disposed on the side of the insulating housing and adjacent to the accommodating groove. The other end of the electrical connection structure extends to the at least one protruding portion, and the insulating base material is located on the metal between the layer and the convex part. The second electrical connector includes an insulating housing and an electrical connection structure. The insulating housing has a receiving groove. The electrical connection structure includes an insulating base material and a metal layer disposed on the surface of the insulating base material. , this metal layer forms a circuit. The electrical connection structure is arranged in the accommodation groove of the insulating shell, and at least one end of the electrical connection structure extends to the outside of the accommodation groove, and at least one end has a bending structure, and the metal layer is located there relative to the insulating base material. The outer side of the bending structure; the electrical connection structure and the insulating shell system are combined and arranged in an insert molding manner. Further, the electrical connection structure is either a flexible circuit board or a flexible flat cable, wherein The insulating housing further has at least one recess. The at least one recess is provided on the side of the insulating housing, and the accommodating groove is located at the bottom of the at least one recess. The other end of the electrical connection structure extends to the at least one recess, and the insulating base material Located between the metal layer and the recess. Wherein, the convex part of the first electrical connector is inserted into the recessed part of the second electrical connector, so that the metal layer of the electrical connection structure of the first electrical connector contacts the metal layer of the electrical connection structure of the second electrical connector. and form an electrical connection.

The present invention provides a manufacturing method of an electrical connector structure, which includes step A: forming a metal layer on an insulating base material to form an electrical connection structure; step B: placing at least one of the electrical connection structure in a mold in, and insulating plastic is injected into the mold to form an insulating shell covering at least one of the electrical connection structures by insert molding. The insulating shell forms at least one accommodation groove, and the electrical connection structure is The connection structure is located in the at least one accommodating groove, the at least one accommodating groove runs through the opposite end surfaces of the insulating housing, and the electrical connection structure penetrates from both ends of the at least one accommodating groove; Step C: Cut the electrical connection structure at the accommodation slot and expose the electrical connection structure to a predetermined length of the accommodation slot; and step D: bend the electrical connection structure exposing the accommodation slot so that the electrical connection structure is exposed to a predetermined length of the accommodation slot. The electrical connection structure is in contact with the end surface of the insulating housing, and the insulating base material is located between the metal layer and the insulating housing.

In another embodiment of the manufacturing method of the electrical connector structure, the insulating housing further has at least one protruding portion, and the at least one protruding portion is disposed on the side of the insulating housing and adjacent to the accommodating groove, and the other end of the electrical connection structure The portion extends to at least one convex portion, and the insulating base material is located between the metal layer and the convex portion.

In another embodiment of the manufacturing method of the electrical connector structure, the insulating housing further has at least one recess, the at least one recess is provided on the side of the insulating housing, and the accommodating groove is located at the bottom of the at least one recess, and the electrical connection structure The other end extends to at least one recess, and the insulating base material is located between the metal layer and the recess.

In another embodiment of the method for manufacturing an electrical connector structure, in step B, a plurality of electrical connection structures are placed in a mold, and insulating plastic is injected into the mold to form an insulating plastic covering the electrical connection structures. The insulating shell forms a plurality of accommodating slots. The electrical connection structures are respectively located in the accommodating slots. The accommodating slots penetrate the opposite end surfaces of the insulating shell. The electrical connection structures are from The two ends of the accommodation slots pass through.

In another embodiment of the method for manufacturing an electrical connector structure, in step B, a plurality of electrical connection structures are placed in a mold, and insulating plastic is injected into the mold to form a plurality of coverings on the electrical connections. The insulating shell of the structure, each of the insulating shells forms an accommodating groove, and the electrical connection structures are respectively located in the accommodating groove. The accommodating groove penetrates the opposite end surfaces of the insulating shell, and the electrical connections Structures pass through both ends of the accommodation slot.

In another embodiment of the manufacturing method of the electrical connector structure, it further includes a plurality of the electrical connection structures and a plurality of the insulating shells, wherein the insulating shells respectively have the accommodating grooves, and the electrical connections The structures are respectively arranged in the accommodating grooves, and the sides of the insulating shells are closely connected.

In another embodiment of the manufacturing method of the electrical connector structure, the insulating shell systems are closely connected by the sides of the insulating shells in an adhesive manner.

In another embodiment of the manufacturing method of an electrical connector structure, the insulating shell systems are closely connected by the sides of the insulating shells in a snap-on manner.

In another embodiment of the manufacturing method of an electrical connector structure, one long side of the insulating housing is provided with at least one female clip; and the other long side of the insulating housing is provided with at least one corresponding clip. The male fastener is fastened to the female fastener.

In the electrical connector structure of the present invention, an electrical connection structure having an insulating base material and a metal layer is placed in a mold, and an insulating shell covering the electrical connection structure is formed by insert injection molding, exposing the insulating material. The electrical connection structure of the housing is bent so that the side with the metal layer is exposed to become the terminal of the electrical connector. In addition, a male connector or a female connector is formed by forming a convex portion or a concave portion in the insulating housing.

Please refer to Figures 1, 2, 3, 4 and 5, which illustrate an embodiment of the electrical connector structure of the present invention. Please also refer to Figure 14.

As shown in Figure 14, in the manufacturing method of the electrical connector structure of this embodiment, in step A, a metal layer is formed on an insulating base material. The metal layer includes circuit patterns and wiring lines, thereby forming An electrical connection structure, that is, the electrical connection structure connects different electronic components to form an electrical connection between the electronic components. Then proceed to step B.

In step B, please also refer to FIG. 1 , at least one electrical connection structure 10 is placed in a mold, and an insulating plastic is injected into the mold using an insert molding process to form a coating on at least An insulating shell 20 of the electrical connection structure 10 . In this embodiment, multiple insulating shells 20 are formed along the extending direction of one electrical connection structure 10 . Each insulating housing 20 forms an accommodating groove 21 , and the electrical connection structure 10 is located in the accommodating groove 20 . The accommodating groove 20 penetrates the two opposite end surfaces of the insulating housing 10 , and the electrical connection structure 10 penetrates from both ends of the accommodating groove 20 . Then proceed to step C.

In step C, the electrical connection structure 10 is cut adjacent to the accommodation groove 21 , and the electrical connection structure 10 is exposed to a predetermined length of the accommodation groove 21 , as shown in FIG. 2 . The predetermined length of the accommodating groove 21 of the electrical connection structure 10 of this embodiment exposed from the insulating housing 20 is 0.3 mm to 0.5 mm. Then proceed to step D.

In step D, as shown in FIGS. 3 , 4 and 5 , the electrical connection structure 10 exposing the accommodating groove 21 of the insulating case 20 is bent, so that the electrical connection structure 10 is in contact with the insulating case. On the end surface 22 of the body 20, the insulating base material 11 is located between the metal layer 12 and the insulating housing 20, thereby forming an electrical connector structure 100.

As shown in FIG. 5 , the electrical connector structure 100 manufactured by the manufacturing method of the electrical connector structure of the present invention includes an electrical connection structure 10 and an insulating housing 20 . The insulating housing 20 has a receiving groove 21 . The electrical connection structure 10 includes an insulating base material 11 and a metal layer 12 disposed on the surface of the insulating base material 11. The metal layer 12 forms a circuit pattern or wiring. The electrical connection structure 10 of this embodiment can be an existing flexible Circuit board (flexible printed circuit, FPC) or flexible flat cable (flexible flat cable, FFC). The electrical connection structure 10 is disposed in the accommodating groove 21 of the insulating housing 20 . The two ends of the electrical connection structure 10 in this embodiment extend to the outside of the accommodating groove 21, and the two ends form a bent structure 13, and the metal layer 12 is located on the outer side of the bent structure 13 relative to the insulating base material 11, that is, The insulating base material 11 is located between the metal layer 12 and the insulating shell 20 . Thereby, the metal layer 12 located on the outside can contact other electronic components to achieve an electrical connection function.

Please refer to Figures 6A and 6B, which illustrate the second and third embodiments of the electrical connector structure of the present invention. As shown in Figure 6A, it is a schematic diagram of a second embodiment of an electrical connector structure formed by covering a plurality of electrical connection structures with an insulating shell. The electrical connector structure in this embodiment is shown in Figure 16 In step B shown, a plurality of electrical connection structures 10 are placed in a mold, and an insulating plastic is injected into the mold using an insert molding process to form a covering around the electrical connection structures 10 The insulating housing 20' forms a plurality of accommodating grooves 21. The plurality of electrical connection structures 10 are respectively located in the accommodating grooves 21. The plurality of accommodating grooves 21 penetrate through the insulating housing 20'. On the opposite end surfaces, a plurality of electrical connection structures 10 penetrate from both ends of the plurality of accommodating slots 21 . Next, as shown in step C and step D in Figure 16, the plurality of electrical connection structures 10 are cut at both ends of the insulating case 20' so that the plurality of electrical connection structures 10 are exposed to appropriate lengths, and then the electrical connection structures 10 are cut. The portion of the sexual connection structure 10 exposed to the insulating shell 20' is bent to form a bending structure 13 at both ends of the insulating shell 20', and the metal layer 12 is located on the outer side of the bending structure 13 relative to the insulating base material 11. That is, the insulating base material 11 is located between the metal layer 12 and the insulating housing 20 to form a multi-point contact electrical connector. As shown in Figure 6B, it is a schematic diagram of a third embodiment of an electrical connector structure formed by covering a plurality of electrical connection structures with a plurality of insulating shells. In this embodiment, the electrical connector structure is in the 16th embodiment. In step B shown in the figure, a plurality of electrical connection structures 10 are placed in a mold, and an insulating plastic is injected into the mold using an insert molding process to form a plurality of electrical connection structures 10 coated on the mold. The insulating shell 20 of the connection structure 10 forms an accommodating groove 21. A plurality of electrical connection structures 10 are respectively located in the accommodating groove 21. The accommodating groove 21 penetrates the opposite end surfaces of the insulating shell 20, and there are many An electrical connection structure 10 extends from both ends of the accommodating groove 21 . In another embodiment, the insulating housings 20 are closely connected by the sides of the insulating housings 20 in an adhesive manner to form a multi-point contact electrical connector. Please also refer to Figure 10, which is a schematic diagram of an electrical connector structure formed by snapping together a plurality of convex insulating shells, and Figure 14, which is an electrical connector structure formed by snapping together a plurality of concave insulating shells. Schematic diagram of an embodiment of the connector structure. In one embodiment, one long side of the insulating housing 20 is provided with at least one female fastener 25; and the other long side of the insulating housing 20 is provided with at least one Correspondingly, the male fastener 26 is fastened to the female fastener 25, and each of the insulating shells 20 has the male fastener 26 and the female fastener 25 tightened from the side of each insulating shell 20 in a buckling manner. Assembled to form a multi-point contact electrical connector. Furthermore, there are two female fasteners 25 and male fasteners 26 , which are respectively provided on two long sides of the insulating housing 20 and on both sides opposite to the electrical connection structure 10 . Accordingly, the buckle design can save assembly and manufacturing time and effectively reduce production costs.

Please refer to Figures 7, 8 and 9, which illustrate yet another embodiment of the electrical connector structure of the present invention. As shown in FIG. 7 , the electrical connector structure 100 ′ of this embodiment is formed in step B of FIG. 14 when the insulating housing 20 is formed. The insulating housing 20 is further provided with at least one protrusion 23 through the design of the mold. , the insulating housing 20 of this embodiment has at least one protruding portion 23 , and the protruding portion 23 is disposed on the side of the insulating housing 20 and adjacent to the accommodating groove 21 . As shown in FIG. 9 , one end of the electrical connection structure 10 extends to expose the accommodating groove 21 , and the electrical connection structure 10 exposing the accommodating groove 21 is bent, which is the same as the structure in FIG. 3 or 4 . As shown in FIG. 8 , the other end of the electrical connection structure 10 extends to the convex part 23 and is not bent but flat against the surface of the convex part 23 , and the insulating base material 11 Located between the metal layer 12 and the convex portion 23 .

Please refer to Figures 11, 12 and 13, which illustrate yet another embodiment of the electrical connector structure of the present invention. As shown in Figure 11, in the electrical connector structure 100" of this embodiment, in step B of Figure 16, when the insulating housing 20 is formed, the insulating housing 20 is further provided with at least one recess 24 through the design of the mold. The insulating housing 20 of this embodiment has at least one recess 24. The recess 24 is disposed on the side of the insulating housing 20 and adjacent to the accommodating groove 21. As shown in Figure 13, one end of the electrical connection structure 10 extends to expose the accommodating groove 21. The receiving groove 21 is bent, and the electrical connection structure 10 exposing the receiving groove 21 is the same as the structure in Figure 3 or Figure 4. As shown in Figure 12, the receiving groove 21 is located at a bottom of the recess 24 241. The other end of the electrical connection structure 10 extends to the recess 24 and the other end of the electrical connection structure 10 is not bent but flat against the surface of the recess 23, and the insulating base material 11 is located between the metal layer 12 and the recess 24. space. In this embodiment, one side wall 242 of the recess 24 is flush with the wall of the accommodating groove 21. The other end of the electrical connection structure 10 extends horizontally from the accommodating groove 21 to the side wall of the recess 24, and the insulating base material 11 is located between the metal layer 12 and the side wall 242 of the recess 24 .

Please refer to Figure 15, which shows an embodiment of the electrical connector assembly of the present invention. The electrical connector assembly 1000 of this embodiment is composed of the electrical connector structure 100' in Figure 8 and the electrical connector structure 100" in Figure 12. The electrical connector structure 100' in Figure 8 has a convex portion 23, thereby forming a male connector, and the electrical connector structure 100" of Figure 12 has a recess 24, thus forming a female connector. The protruding portion 23 of the electrical connector structure 100' is inserted into the recessed portion 24 of the electrical connector structure 100", so that the metal layer 12 of the electrical connection structure 10 disposed on the protruding portion 23 of the electrical connector structure 100' is in contact with the concave portion 24 of the electrical connector structure 100". The metal layer 12 of the electrical connection structure 10 on the recess 24 of the electrical connector structure 100" contacts to form an electrical connection.

In the electrical connector structure of the present invention, an electrical connection structure having an insulating base material and a metal layer is placed in a mold, and an insulating shell covering the electrical connection structure is formed by insert injection molding, exposing the insulating material. The electrical connection structure of the housing is bent so that the side with the metal layer is exposed to become the terminal of the electrical connector. In addition, a male connector or a female connector is formed by forming a convex portion or a concave portion in the insulating housing.

However, the above are only preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. That is, simple equivalent changes and modifications may be made based on the patent scope of the present invention and the description of the invention. All are still within the scope of the patent of this invention. In addition, any embodiment or patentable scope of the present invention does not necessarily achieve all the purposes, advantages or features disclosed in the present invention. In addition, the abstract section and title are only used to assist in searching patent documents and are not intended to limit the scope of the invention. In addition, terms such as "first" and "second" mentioned in this specification or the patent application are only used to name elements or distinguish different embodiments or scopes, and are not used to limit the number of elements. upper or lower limit.

10: Electrical connection structure 11: Insulation base material 12:Metal layer 13: Bending structure 20, 20’: Insulating shell 21: Accommodation tank 22: End face 23:convex part 24: concave part 241:Bottom 242:Side wall 25:Mother card fastener 26: Male card fastener 100, 100’, 100”: Electrical connector structure 1000: Electrical connector assembly Steps:A,B,C,D

Figure 1 is a schematic diagram of the electrical connection structure being embedded and injection molded into a plurality of insulating shells in a mold in the manufacturing method of the electrical connector structure of the present invention. Figure 2 is a schematic diagram of the electrical connection structure in Figure 1 being cut to obtain an insulating shell covering a section of the electrical connection structure. Figures 3 and 4 are schematic diagrams of the electrical connection structure protruding from the insulating housing in Figure 2 after being bent to form an electrical connector structure. Figure 5 is a side view of the electrical connector structure of Figures 3 and 4. Figure 6A is a schematic diagram of a second embodiment of an electrical connector structure formed by covering a plurality of electrical connection structures with an insulating shell. FIG. 6B is a schematic diagram of a third embodiment of an electrical connector structure formed by covering multiple electrical connection structures with multiple insulating shells. FIG. 7 is a schematic diagram of another embodiment of forming a protrusion on an insulating housing in the manufacturing method of an electrical connector structure of the present invention. FIG. 8 is a schematic diagram of the electrical connector structure obtained by cutting the electrical connection structure from the structure of FIG. 7 . Figure 9 is a perspective view of the electrical connector structure of Figure 8 from another perspective. Figure 10 is a schematic diagram of an embodiment of an electrical connector structure formed by snap-assembly of multiple protruding insulating shells. Figure 11 is a schematic diagram of yet another embodiment of forming a recessed portion on an insulating housing in the manufacturing method of an electrical connector structure of the present invention. FIG. 12 is a schematic diagram of the electrical connector structure obtained by cutting the electrical connection structure from the structure of FIG. 11 . FIG. 13 is a perspective view of the electrical connector structure of FIG. 12 from another perspective. Figure 14 is a schematic diagram of an embodiment of an electrical connector structure formed by snap-assembly of multiple recessed insulating shells. Figure 15 is a schematic diagram of the electrical connector of Figure 8 and the electrical connector of Figure 11 combined into an electrical connector assembly. FIG. 16 is a flow chart of a manufacturing method of the electrical connector structure of FIG. 1 .

10: Electrical connection structure

11: Insulation base material

12:Metal layer

13: Bending structure

20: Insulating shell

21: Accommodation tank

22: End face

100: Electrical connector structure

Claims (20)

An electrical connector structure, which at least includes: At least one insulating housing (20) has at least one receiving groove (21); and At least one electrical connection structure (10) includes an insulating base material (11) and a metal layer (12) disposed on the surface of the insulating base material (11), the metal layer (12) forming a circuit; The electrical connection structure (10) is disposed in the accommodation groove (21) of the insulating housing (20), and at least one end of the electrical connection structure (10) extends to the accommodation groove (21) Externally, the at least one end has a bent structure (13), and the metal layer (12) is located on the outer side of the bent structure (13) relative to the insulating base material (11); wherein the electrical connection structure (10) is combined with the insulating shell (20) by insert molding; further, the electrical connection structure (10) is either a flexible circuit board or a flexible flat cable. The electrical connector structure of claim 1, wherein the insulating housing (20) further has at least one protruding portion (23), and the at least one protruding portion (23) is disposed on a side of the insulating housing (20). And adjacent to the accommodating groove (21), the other end of the electrical connection structure (10) extends to the at least one protrusion (23), and the insulating base material (11) is located between the metal layer (12) and between the convex portions (23). The electrical connector structure of claim 1, wherein the insulating housing (20) further has at least one recess (24), and the at least one recess (24) is disposed on a side of the insulating housing (20), and The accommodating groove (21) is located at a bottom (241) of the at least one recess (24), the other end of the electrical connection structure (10) extends to the at least one recess (24), and the insulating base material ( 11) is located between the metal layer (12) and the recess (24). The electrical connector structure as claimed in claim 3, wherein one side wall (242) of the recess (24) is flush with the wall of the accommodating groove (21), and the other end of the electrical connection structure (10) Extend horizontally from the accommodating groove (21) to the side wall (242) of the recess (24), and the insulating base material (11) is located on the metal layer (12) and the side wall (242) of the recess (24) between. The electrical connector structure as claimed in any one of claims 1 to 4, further comprising a plurality of the electrical connection structures (10), wherein the insulating housing (20) has a plurality of the accommodation grooves (21) , the electrical connection structures (10) are respectively arranged in the accommodation grooves (21). The electrical connector structure according to any one of claims 1 to 4, further comprising a plurality of the electrical connection structures (10) and a plurality of the insulating shells (20), wherein the insulating shells (20) ) respectively have the accommodating grooves (21), the electrical connection structures (10) are respectively arranged in the accommodating grooves (21), and the sides of the insulating shells (20) are closely connected. The electrical connector structure as claimed in claim 6, wherein the insulating shells (20) are closely connected by the sides of the insulating shells (20) in an adhesive manner. The electrical connector structure as claimed in claim 6, wherein each of the insulating shells (20) is closely connected by the sides of the respective insulating shells (20) in a snap-on manner. The electrical connector structure as claimed in claim 8, wherein one long side of the insulating housing (20) is provided with at least one female fastener; and the other long side of the insulating housing (20) is provided with At least one corresponding male fastener is fastened to the female fastener. An electrical connector assembly, the electrical connector assembly (1000) at least includes: A first electrical connector having the electrical connector structure (100') as described in claim 2; and A second electrical connector having the electrical connector structure (100") as described in claim 3 or 4; The convex part (23) of the first electrical connector is inserted into the recessed part (24) of the second electrical connector, so that the metal layer of the electrical connection structure (10) of the first electrical connector (12) Contact with the metal layer (12) of the electrical connection structure (10) of the second electrical connector to form an electrical connection. The electrical connector assembly of claim 10, wherein the first electrical connector is a male connector; the second electrical connector is a female connector. A method of manufacturing an electrical connector structure, which at least includes the following steps: Step A: forming a metal layer on an insulating substrate to form an electrical connection structure; Step B: Place at least one of the electrical connection structures in a mold, and inject insulating plastic into the mold to form an insulating shell covering the at least one electrical connection structure by insert molding. , the insulating housing forms at least one accommodating groove, the electrical connection structure is located in the at least one accommodating groove, the at least one accommodating groove penetrates the opposite end surfaces of the insulating housing, and the electrical connection structure is from the at least one accommodating groove. A receiving groove passes through both ends; Step C: Cut the electrical connection structure adjacent to the accommodation slot, and expose the electrical connection structure to a predetermined length of the accommodation slot; and Step D: Bend the electrical connection structure to expose the accommodating groove, so that the electrical connection structure contacts the end surface of the insulating case, and the insulating base material is located between the metal layer and the insulating case. The manufacturing method of an electrical connector structure as claimed in claim 12, wherein the insulating housing further has at least one protruding portion, the at least one protruding portion is disposed on a side of the insulating housing and adjacent to the accommodating groove, the The other end of the electrical connection structure extends to the at least one protrusion, and the insulating base material is located between the metal layer and the protrusion. The manufacturing method of an electrical connector structure as claimed in claim 12, wherein the insulating housing further has at least one recess, the at least one recess is provided on a side of the insulating housing, and the accommodating groove is located in the at least one recess. The other end of the electrical connection structure extends to the at least one recess, and the insulating base material is located between the metal layer and the recess. The manufacturing method of an electrical connector structure as claimed in claim 12, wherein in step B, a plurality of the electrical connection structures are placed in the mold, and insulating plastic is injected into the mold to form a coating on the mold. The insulating shell has an equal electrical connection structure. The insulating shell forms a plurality of accommodation slots. The electrical connection structures are respectively located in the accommodation slots. The accommodation slots penetrate the opposite sides of the insulating shell. On the end faces, the electrical connection structures pass out from both ends of the accommodation slots. The manufacturing method of an electrical connector structure as claimed in claim 12, wherein in step B, a plurality of the electrical connection structures are placed in the mold, and insulating plastic is injected into the mold to form a plurality of coatings. In the insulating shell of the electrical connection structures, each insulating shell forms an accommodating groove, and the electrical connection structures are respectively located in the accommodating groove, and the accommodating groove runs through the insulating shell. On opposite ends, the electrical connection structures penetrate from both ends of the accommodating slot. The manufacturing method of an electrical connector structure as claimed in claim 16, further comprising a plurality of the electrical connection structures and a plurality of the insulating shells, wherein the insulating shells respectively have the accommodating grooves, and the electrical connection structures are The connection structures are respectively disposed in the accommodating grooves, and the sides of the insulating shells are closely connected. The manufacturing method of an electrical connector structure as claimed in claim 17, wherein the insulating shell systems are closely connected by the sides of the insulating shells in an adhesive manner. The manufacturing method of an electrical connector structure as claimed in claim 17, wherein each of the insulating shell systems is closely connected by the sides of each of the insulating shells in a snap-on manner. The manufacturing method of an electrical connector structure as claimed in claim 19, wherein one long side of the insulating housing is provided with at least one female fastener; and the other long side of the insulating housing is provided with at least one corresponding The male fastener snaps onto the female fastener.

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