CN218958067U - Electric connector structure and electric connector assembly - Google Patents

Abstract

The utility model relates to an electric connector structure and an electric connector assembly, wherein the electric connector structure comprises an insulating shell and an electric connection structure. The insulating shell is provided with at least one accommodating groove. The electric connection structure comprises an insulating base material and a metal layer arranged on the surface of the insulating base material, wherein the metal layer forms a circuit. The electric connection structure is arranged in the accommodating groove of the insulating shell, at least one end part of the electric connection structure extends to the outside of the accommodating groove, at least one end part of the electric connection structure is provided with a bending structure, and the metal layer is positioned on the outer side surface of the bending structure relative to the insulating base material.

Description

Electric connector structure and electric connector assembly

Technical Field

The present utility model relates to an electrical connector structure and an electrical connector assembly, and more particularly, to an electrical connector structure and an electrical connector assembly formed by embedding and injecting a flexible circuit structure.

Background

In modern electronic devices, printed Circuit Boards (PCBs) are electrically connected to each other through connectors to achieve signal transmission, and most of the current electrical connectors are composed of flexible circuit boards (flexible printed circuit, FPCs) or flexible flat cables (flexible flat cable, FFCs) and conductive terminals, connection housings, and other structures. While the electrical connector can achieve electrical connection and use, the following drawbacks remain. For example, the FPC or FFC is often connected to the conductive terminals of the circuit board of the electrical connector by soldering or bonding, but the soldering area is small, the soldering is difficult and the short circuit is easy, and furthermore, the FPC or FFC is a flexible circuit structure, so that the FPC or FFC is not easy to position and support, and therefore, the assembly and manufacturing methods are difficult and complicated.

Moreover, because of the above characteristics of FPC or FFC, some processes of the conventional electrical connector first form the conductive terminals by punching, jogging and soldering the metal material strips, and then assemble the FPC or FFC and the conductive terminals in the insulated connector body, however, this approach not only consumes a lot of time and material costs, but also the final volume of the final electrical connector cannot be effectively reduced due to the limited structure, so that the volume of the electronic device cannot be developed in a breakthrough manner.

Therefore, how to solve the above-mentioned problems and disadvantages is the direction of research and improvement for the applicant of the present utility model and the related manufacturers who are engaged in the industry.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: an electrical connector structure is provided, which is formed by directly placing an existing flexible circuit board (flexible printed circuit, FPC) or flexible flat cable (flexible flat cable, FFC) in a mold to embed and eject (insert molding) the electrical connector into an insulating housing, so that the process of manufacturing the electrical connector can be simplified, and a plurality of contact points can be formed by the design of the bending structure of the electrical connection structure, thereby replacing the metal conductive terminals of the conventional electrical connector, so that the electrical connector can be formed without additional assembly of metal conductive terminals, insulating housing and other parts, the process time can be reduced, the volume space of the electrical connector can be reduced, the problem that the conventional electrical connector is large and limited can be effectively solved, and the advantages of small volume, time saving, cost reduction and the like can be achieved.

The technical means of the utility model is as follows: an embodiment of the electrical connector structure of the present utility model includes at least one insulating housing and at least one electrical connection structure. The insulating shell is provided with a containing groove. The electric connection structure comprises an insulating base material and a metal layer arranged on the surface of the insulating base material, wherein the metal layer forms a circuit. The electric connection structure is arranged in the accommodating groove of the insulating shell, at least one end part of the electric connection structure extends to the outside of the accommodating groove, at least one end part of the electric connection structure is provided with a bending structure, and the metal layer is positioned on the outer side surface of the bending structure relative to the insulating base material; wherein the electric connection structure and the insulating shell are combined and arranged in a buried injection molding mode; further, the electrical connection structure is any one of a flexible circuit board and a flexible flat cable.

In another embodiment, the insulating housing further has at least one protrusion disposed on a 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 protrusion, and the insulating substrate is disposed between the metal layer and the protrusion.

In another embodiment, the insulating housing further has at least one recess, the at least one recess is disposed at a side of the insulating housing, the accommodating groove is disposed at a 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 substrate is disposed between the metal layer and the recess.

In another embodiment, a sidewall of the recess is flush with a wall surface of the accommodating groove, the other end of the electrical connection structure extends horizontally from the accommodating groove to the sidewall of the recess, and the insulating substrate is located between the metal layer and the sidewall of the recess.

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

In another embodiment, the device further comprises a plurality of electrical connection structures and a plurality of insulating shells, wherein the insulating shells are respectively provided with a containing groove, the electrical connection structures are respectively arranged in the containing grooves, and the side edges of the insulating shells are closely connected.

In another embodiment, each of the insulating cases is tightly connected by a side of each of the insulating cases in an adhesive manner.

In another embodiment, each of the insulating housings is tightly connected by a side of each of the insulating housings in a snap-fit manner.

In another embodiment, at least one female fastener is disposed on a long side of the insulating housing; and at least one male fastener corresponding to the female fastener is arranged on the other long side of the insulating shell.

The utility model provides an electric connector assembly, which comprises a first electric connector and a second electric connector; the first electric connector comprises an insulating shell and an electric connection structure, wherein the insulating shell is provided with a containing groove, the electric connection structure comprises an insulating base material and a metal layer arranged on the surface of the insulating base material, and the metal layer forms a circuit. The electric connection structure is arranged in the accommodating groove of the insulating shell, at least one end part of the electric connection structure extends to the outside of the accommodating groove, at least one end part of the electric connection structure is provided with a bending structure, and the metal layer is positioned on the outer side surface of the bending structure relative to the insulating base material; the electrical connection structure and the insulation shell are combined in a buried injection molding mode, and further, the electrical connection structure is any one of a flexible circuit board and a flexible flat cable, wherein the insulation shell is further provided with at least one convex part, the at least one convex part is arranged on the side edge of the insulation shell and is adjacent to the accommodating groove, the other end part of the electrical connection structure extends to the at least one convex part, and the insulation substrate is positioned between the metal layer and the convex part. The second electric connector comprises an insulating shell and an electric connection structure, wherein the insulating shell is provided with a containing groove, the electric connection structure comprises an insulating base material and a metal layer arranged on the surface of the insulating base material, and the metal layer forms a circuit. The electric connection structure is arranged in the accommodating groove of the insulating shell, at least one end part of the electric connection structure extends to the outside of the accommodating groove, at least one end part of the electric connection structure is provided with a bending structure, and the metal layer is positioned on the outer side surface of the bending structure relative to the insulating base material; the electrical connection structure and the insulation shell are combined in a buried injection molding mode, and further, the electrical connection structure is any one of a flexible circuit board and a flexible flat cable, wherein the insulation shell is further provided with at least one concave portion, the at least one concave portion is arranged on the side edge of the insulation shell, the accommodating groove is arranged at the bottom of the at least one concave portion, the other end portion of the electrical connection structure extends to the at least one concave portion, and the insulation substrate is arranged between the metal layer and the concave portion. The convex part of the first electric connector is inserted into the concave part of the second electric connector, so that the metal layer of the electric connection structure of the first electric connector is contacted with the metal layer of the electric connection structure of the second electric connector to form electric connection.

The utility model provides a manufacturing method of an electric connector structure, which comprises the following steps: forming a metal layer on an insulating substrate to form an electrical connection structure; and (B) step (B): placing at least one electrical connection structure in a mold, and forming an insulating shell coated on at least one electrical connection structure in a buried injection molding mode by injecting insulating plastic into the mold, wherein the insulating shell forms at least one accommodating groove, the electrical connection structure is positioned in the at least one accommodating groove, the at least one accommodating groove penetrates through opposite end surfaces of the insulating shell, and the electrical connection structure penetrates out of two ends of the at least one accommodating groove; step C: cutting the electric connection structure at a position adjacent to the accommodating groove, and exposing the electric connection structure to a preset length of the accommodating groove; and D, step D: the electric connection structure of the containing groove is exposed through bending, so that the electric connection structure is abutted against the end face of the insulating shell, and the insulating base material is positioned between the metal layer and the insulating shell.

In another embodiment of the method for manufacturing an electrical connector structure, the insulating housing further has at least one protrusion, the at least one protrusion is disposed on a side of the insulating housing and is adjacent to the accommodating groove, the other end of the electrical connection structure extends to the at least one protrusion, and the insulating substrate is disposed between the metal layer and the protrusion.

In another embodiment of the method for manufacturing an electrical connector structure, the insulating housing further has at least one recess, the at least one recess is disposed on a side of the insulating housing, the accommodating groove is disposed at a 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 substrate is disposed between the metal layer and the recess.

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

In another embodiment of the method for manufacturing an electrical connector structure, in the 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 insulating shells wrapped on the electrical connection structures, each insulating shell respectively forms a receiving groove, the electrical connection structures are respectively located in the receiving grooves, the receiving grooves penetrate through opposite end surfaces of the insulating shell, and the electrical connection structures penetrate out from two ends of the receiving grooves.

In another embodiment of the method for manufacturing an electrical connector structure, the electrical connector further includes a plurality of the electrical connection structures and a plurality of the insulating housings, wherein the insulating housings respectively have the accommodating grooves, the electrical connection structures are respectively disposed in the accommodating grooves, and sides of the insulating housings are closely connected.

In another embodiment of the method for manufacturing an electrical connector structure, the insulating housings are closely connected to each other by bonding sides of the insulating housings.

In another embodiment of the method for manufacturing an electrical connector structure, each of the insulating housings is tightly connected by a side of each of the insulating housings in a snap-fit manner.

In another embodiment of the method for manufacturing an electrical connector structure, at least one female fastener is disposed on a long side of the insulating housing; and the other long side of the insulating shell is provided with at least one male clamping piece which is correspondingly clamped with the female clamping piece.

The beneficial effects of the utility model are as follows: the electric connector structure of the utility model is characterized in that an electric connection structure with an insulating base material and a metal layer is placed in a mould, an insulating shell which covers the electric connection structure is formed in a buried injection molding mode, and the electric connection structure exposed out of the insulating shell exposes one side with the metal layer in a bending mode to form a terminal of the electric connector. Further, the male connector or the female connector is formed by forming a convex portion or a concave portion in the insulating housing.

Drawings

Fig. 1 is a schematic view of a method for manufacturing an electrical connector structure according to the present utility model, in which a plurality of insulating housings are injection molded by embedding an electrical connection structure in a mold.

Fig. 2 is a schematic diagram of the electrical connection structure of fig. 1 after being cut to obtain an insulating housing covering a section of the electrical connection structure.

Fig. 3 and 4 are schematic diagrams illustrating the electrical connection structure protruding from the insulating housing in fig. 2 after being bent to form an electrical connector structure.

Fig. 5 is a side view of the electrical connector structure of fig. 3 and 4.

Fig. 6A is a schematic diagram of a second embodiment of an electrical connector structure formed by coating a plurality of electrical connection structures with an insulating housing.

Fig. 6B is a schematic diagram of a third embodiment of an electrical connector structure formed by coating a plurality of electrical connection structures with a plurality of insulating housings.

Fig. 7 is a schematic view of another embodiment of forming a protrusion on an insulating housing in the method of manufacturing an electrical connector structure of the present utility model.

Fig. 8 is a schematic view of the electrical connector structure of the structure of fig. 7 after cutting the electrical connection structure.

Fig. 9 is a perspective view of another view of the electrical connector structure of fig. 8.

Fig. 10 is a schematic view of an embodiment of an electrical connector structure formed by snap-fitting a plurality of male insulating housings.

Fig. 11 is a schematic view of still another embodiment of forming a recess in an insulating housing in a method of manufacturing an electrical connector structure of the present utility model.

Fig. 12 is a schematic view of the electrical connector structure of the structure of fig. 11 after cutting the electrical connection structure.

Fig. 13 is a perspective view of another view of the electrical connector structure of fig. 12.

Fig. 14 is a schematic view of an embodiment of an electrical connector structure formed by snap-fitting a plurality of recessed insulating housings.

Fig. 15 is a schematic view of the electrical connector of fig. 8 combined with the electrical connector of fig. 11 to form an electrical connector assembly.

Fig. 16 is a flow chart of a method of manufacturing the electrical connector structure of fig. 1.

Description of the figure:

10: electrical connection structure

11: insulating base material

12: metal layer

13: bending structure

20. 20': insulating shell

21: accommodating groove

22: end face

23: convex part

24: concave part

241: bottom part

242: side wall

25: female fastener

26: male fastener

100. 100', 100": electric connector structure

1000: an electrical connector assembly.

Detailed Description

Referring to fig. 1, 2, 3, 4 and 5, an embodiment of an electrical connector structure of the present utility model is shown, and referring to fig. 14.

As shown in fig. 14, in the method for manufacturing an electrical connector structure of the present embodiment, in step a, a metal layer is formed on an insulating substrate, and the metal layer includes circuit patterns, wires, etc., so as to form an electrical connection structure, i.e. the electrical connection structure is connected with different electronic components to form electrical connection between the electronic components. Step B is then entered.

In step B, referring to fig. 1, at least one electrical connection structure 10 is placed in a mold, and an insulating plastic is injected into the mold by using an insert molding process to form an insulating housing 20 covering the at least one electrical connection structure 10. In this embodiment, a plurality of insulating cases 20 are formed along the extending direction of one electrical connection structure 10. Each insulating housing 20 forms a receiving groove 21, and the electrical connection structure 10 is located in the receiving groove 20. The accommodating groove 20 penetrates through two opposite end surfaces of the insulating housing 10, and the electrical connection structure 10 penetrates out of two ends of the accommodating groove 20. Step C is then entered.

In step C, the electrical connection structure 10 is cut adjacent to the accommodating groove 21, and the electrical connection structure 10 is exposed out of the accommodating groove 21 for a predetermined length, as shown in fig. 2. The predetermined length of the accommodating groove 21 of the insulating housing 20 exposed by the electrical connection structure 10 of the present embodiment is 0.3mm to 0.5mm. Step D is then entered.

In step D, as shown in fig. 3, 4 and 5, the electrical connection structure 10 of the accommodating groove 21 of the insulating housing 20 is bent and exposed, such that the electrical connection structure 10 abuts against the end face 22 of the insulating housing 20, and the insulating substrate 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 method for manufacturing an electrical connector structure of the present utility model 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 substrate 11 and a metal layer 12 disposed on a surface of the insulating substrate 11, wherein the metal layer 12 forms a circuit pattern or a flat cable, and the electrical connection structure 10 of the present embodiment may be a conventional flexible circuit board (flexible printed circuit, FPC) or a 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 of the present embodiment extend to the outside of the accommodating groove 21, the two ends form the bending structure 13, and the metal layer 12 is located on the outer side of the bending structure 13 relative to the insulating substrate 11, that is, the insulating substrate 11 is located between the metal layer 12 and the insulating housing 20. Therefore, the metal layer 12 positioned on the outer side can be in contact with other electronic components to achieve the function of electric connection.

Please refer to fig. 6A and 6B, which illustrate a second embodiment and a third embodiment of the electrical connector structure of the present utility model. As shown in fig. 6A, a schematic diagram of a second embodiment of an electrical connector structure formed by wrapping a plurality of electrical connection structures with an insulating housing is shown, in the electrical connector structure of this embodiment, in step B shown in fig. 16, a plurality of electrical connection structures 10 are placed in a mold, and insulating plastics are injected into the mold by using an insert molding process to form an insulating housing 20' wrapped 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 plurality of accommodating grooves 21, the plurality of accommodating grooves 21 penetrate through opposite end surfaces of the insulating housing 20', and the plurality of electrical connection structures 10 penetrate from two ends of the plurality of accommodating grooves 21. Next, as shown in step C and step D of fig. 16, the plurality of electrical connection structures 10 are cut at two ends of the insulating housing 20' respectively to expose the plurality of electrical connection structures 10 by a proper length, and then the portion of the electrical connection structure 10 exposed out of the insulating housing 20' is bent to form a bent structure 13 at two ends of the insulating housing 20', and the metal layer 12 is located on an outer side surface of the bent structure 13 with respect to the insulating substrate 11, i.e. the insulating substrate 11 is located between the metal layer 12 and the insulating housing 20, so as to form the multi-point contact type electrical connector. As shown in fig. 6B, a schematic diagram of a third embodiment of an electrical connector structure formed by coating a plurality of electrical connection structures with a plurality of insulating housings is shown, in the electrical connector structure of this embodiment, in step B shown in fig. 16, a plurality of electrical connection structures 10 are placed in a mold, and insulating plastics are injected into the mold by using an insert molding process to form a plurality of insulating housings 20 coated on the electrical connection structures 10, the insulating housings 20 form a receiving slot 21, the plurality of electrical connection structures 10 are respectively located in the receiving slot 21, the receiving slot 21 penetrates through opposite end surfaces of the insulating housing 20, and the plurality of electrical connection structures 10 penetrate out from two ends of the receiving slot 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 type electrical connector. Referring to fig. 10, an embodiment of an electrical connector structure formed by snap-fitting a plurality of protruding insulating housings is shown, and fig. 14 is a schematic view of an embodiment of an electrical connector structure formed by snap-fitting a plurality of recessed insulating housings, wherein in an embodiment, at least one female snap member 25 is provided on a long side of the insulating housing 20; and the other long side of the insulating housing 20 is provided with at least one male buckle piece 26 corresponding to the female buckle piece 25, and each insulating housing 20 tightly connects the male buckle piece 26 and the female buckle piece 25 by the side of each insulating housing 20 in a buckling manner so as to form the multi-point contact type electric connector. Further, the female snap 25 and the male snap 26 are respectively disposed on two long sides of the insulating housing 20 and on two sides opposite to the electrical connection structure 10. Therefore, the time for assembling and manufacturing can be saved through the buckle design, and the production cost is effectively reduced.

Referring to fig. 7, 8 and 9, another embodiment of the electrical connector structure of the present utility model is shown. As shown in fig. 7, in the step B of fig. 16, when the insulating housing 20 is formed, the insulating housing 20 further has at least one protrusion 23 through the mold design, and the insulating housing 20 of the present embodiment has at least one protrusion 23, and the protrusion 23 is disposed at 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 of fig. 3 or fig. 4. As shown in fig. 8, the other end of the electrical connection structure 10 extends to the protruding portion 23, and the other end of the electrical connection structure 10 is not bent but is flat against the surface of the protruding portion 23, and the insulating substrate 11 is located between the metal layer 12 and the protruding portion 23.

Referring to fig. 11, 12 and 13, another embodiment of the electrical connector structure of the present utility model is shown. As shown in fig. 11, in the electrical connector structure 100″ of the present embodiment, when the insulating housing 20 is formed in step B of fig. 16, the insulating housing 20 further has at least one recess 24 through the mold design, and the insulating housing 20 of the present embodiment has at least one recess 24, and the recess 24 is disposed at a side of the insulating housing 20 and adjacent to the accommodating groove 21. As shown in fig. 13, 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 of fig. 3 or fig. 4. As shown in fig. 12, the accommodating groove 21 is located at a bottom 241 of the recess 24, the other end of the electrical connection structure 10 extends to the recess 24, the other end of the electrical connection structure 10 is not bent but is flat against the surface of the recess 23, and the insulating substrate 11 is located between the metal layer 12 and the recess 24. A sidewall 242 of the recess 24 of the present embodiment is flush with a wall surface of the accommodating groove 21, the other end portion of the electrical connection structure 10 extends horizontally from the accommodating groove 21 to the sidewall of the recess 24, and the insulating substrate 11 is located between the metal layer 12 and the sidewall 242 of the recess 24.

Referring to fig. 15, an embodiment of an electrical connector assembly according to the present utility model is shown. The electrical connector assembly 1000 of the present embodiment is formed by combining the electrical connector structure 100' of fig. 8 with the electrical connector structure 100″ of fig. 12. The electrical connector structure 100' of fig. 8 has a male portion 23, thus forming a male connector, and the electrical connector structure 100 "of fig. 12 has a female portion 24, thus forming a female connector. The protruding portion 23 of the electrical connector structure 100 'is inserted into the recess 24 of the electrical connector structure 100", such that the metal layer 12 of the electrical connection structure 10 disposed on the protruding portion 23 of the electrical connector structure 100' contacts the metal layer 12 of the electrical connection structure 10 disposed on the recess 24 of the electrical connector structure 100" to form an electrical connection.

The electric connector structure of the utility model is characterized in that an electric connection structure with an insulating base material and a metal layer is placed in a mould, an insulating shell which covers the electric connection structure is formed in a buried injection molding mode, and the electric connection structure exposed out of the insulating shell exposes one side with the metal layer in a bending mode to form a terminal of the electric connector. Further, the male connector or the female connector is formed by forming a convex portion or a concave portion in the insulating housing.

Claims (19)

1. An electrical connector structure, comprising at least:

at least one insulating housing (20) having at least one receiving slot (21); and

at least one electrical connection structure (10) comprising an insulating substrate (11) and a metal layer (12) disposed on the surface of the insulating substrate (11), wherein the metal layer (12) forms a circuit;

the electrical connection structure (10) is disposed in the accommodating groove (21) of the insulating housing (20), at least one end portion of the electrical connection structure (10) extends to the outside of the accommodating groove (21), the at least one end portion is provided with a bending structure (13), and the metal layer (12) is located on an outer side face of the bending structure (13) relative to the insulating substrate (11).

2. The electrical connector structure of claim 1, wherein the insulating housing (20) further has at least one protrusion (23), the at least one protrusion (23) is disposed on a side of the insulating housing (20) and adjacent to the accommodating groove (21), the other end portion of the electrical connection structure (10) extends to the at least one protrusion (23), and the insulating substrate (11) is located between the metal layer (12) and the protrusion (23).

3. The electrical connector structure of claim 1, wherein the insulating housing (20) further has at least one recess (24), the at least one recess (24) is disposed at a side of the insulating housing (20), the accommodating groove (21) is disposed 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 substrate (11) is disposed between the metal layer (12) and the recess (24).

4. The electrical connector structure of claim 3, wherein a sidewall (242) of the recess (24) is flush with a wall surface of the accommodating groove (21), the other end portion of the electrical connection structure (10) extends horizontally from the accommodating groove (21) to the sidewall (242) of the recess (24), and the insulating substrate (11) is located between the metal layer (12) and the sidewall (242) of the recess (24).

5. The electrical connector structure of claim 4, wherein the end surfaces of the insulating substrate (11) and the metal layer (12) are flush with the end surface of the insulating housing.

6. The electrical connector structure according to any one of claims 1 to 5, further comprising a plurality of the electrical connection structures (10), wherein the insulating housing (20) has a plurality of the receiving slots (21), and the electrical connection structures (10) are disposed in the receiving slots (21), respectively.

7. The electrical connector structure of claim 6, wherein the distance between the receiving slots is all equal, all unequal, or at least partially equal.

8. The electrical connector structure according to any one of claims 1 to 5, further comprising a plurality of the electrical connection structures (10) and a plurality of the insulating housings (20), wherein the insulating housings (20) respectively have the accommodating grooves (21), the electrical connection structures (10) are respectively disposed in the accommodating grooves (21), and sides of the insulating housings (20) are closely connected.

9. The electrical connector structure of claim 8, wherein an adhesive layer is disposed between the sides of each of the insulating housings (20), and the sides of each of the insulating housings (20) are tightly connected by the adhesive layer.

10. The electrical connector structure of claim 8, wherein a snap-fit structure is provided between the sides of each of the insulating housings (20), the sides of each of the insulating housings (20) being tightly connected by the snap-fit structure.

11. The electrical connector structure of claim 10, wherein the snap-fit structure comprises at least one female snap-fit member disposed on a long side of the insulating housing (20); the fastening structure further comprises at least one male fastening piece, the at least one male fastening piece is arranged on the other long side edge of the insulating shell (20), and the at least one male fastening piece is correspondingly fastened to the female fastening piece.

12. The electrical connector structure of claim 8, wherein the thickness of the insulative housing is all equal, all unequal, or at least partially equal.

13. The electrical connector structure of claim 1, wherein the electrical connection structure (10) is a flexible circuit board or a flexible flat cable.

14. The electrical connector structure of claim 13, wherein the electrical connection structure (10) is combined with the insulating housing (20) in a buried injection manner.

15. The electrical connector structure of claim 13, wherein the metal layer comprises a plurality of metal strips arranged parallel to each other, and both ends of the metal strips extend toward the opening of the accommodating groove, respectively.

16. The electrical connector structure of claim 1, wherein the ends of the base material of the bent structure protrude from the end face of the insulating housing.

17. The electrical connector structure of claim 15, wherein the bend of the metal layer of the bent structure is proximate one of edges of the opening of the receiving slot.

18. An electrical connector assembly (1000) comprising at least:

a first electrical connector having the electrical connector structure (100') of claim 2; and

a second electrical connector having the electrical connector structure (100 ") of claim 3 or 4;

wherein the convex part (23) of the first electric connector is inserted into the concave part (24) of the second electric connector, so that the metal layer (12) of the electric connection structure (10) of the first electric connector is contacted with the metal layer (12) of the electric connection structure (10) of the second electric connector to form electric connection.

19. The electrical connector assembly of claim 18, wherein the first electrical connector is a male connector; the second electrical connector is a female connector.

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