Connector assembly and flat cable

Abstract

The utility model discloses a connector assembly and a flat cable. The connector assembly includes: a circuit board; a connector including a housing and a plurality of terminals disposed in the housing; the flat cable comprises a row of core wires and an inner insulating layer wrapping the row of core wires; and an insulator. The rear ends of the terminals extend out of the shell and are electrically connected to the circuit board, and the front ends of the row of core wires are exposed out of the inner insulating layer and welded to the circuit board. The insulator is injection-molded on the circuit board, the rear ends of the plurality of terminals and the front end of the row of core wires through an embedded injection molding process, so that the insulator, the circuit board, the plurality of terminals and the row of core wires are integrated. According to the utility model, the flat cable has the advantages of small volume, easy processing and convenient welding, can realize automatic production, improves the production efficiency and reduces the manufacturing cost. Besides, in some embodiments of the utility model, the flat cable is also provided with a shielding layer, so that the stability of signal transmission of the connector assembly can be ensured.

Description

Technical Field

[0001] The utility model relates to a flat cable and a connector assembly including the flat cable. Background Art

[0002] In the prior art, the wire harness for a Type-C connector usually includes a plurality of round wires. The plurality of round wires need to be welded to the circuit board one by one. When welding, it is necessary to clamp and fix each round wire, resulting in a complex welding process and difficulty in realizing automated production. In addition, the plurality of round wires are bundled together in a messy manner, having the disadvantages of large volume and difficulty in distinguishing. In the prior art, each round wire sequentially includes a core wire, an inner insulating layer, an aluminum foil layer, a braided layer, and an outer insulating layer from the inside to the outside. Before welding, it is necessary to first strip the outer insulating layer, bend and cut the braided layer, remove the aluminum foil layer, and cut off the inner insulating layer. This results in a very complex and time-consuming welding process for the round wire, reducing the production efficiency and increasing the manufacturing cost. Summary of the Utility Model

[0003] The purpose of the utility model aims to solve at least one of the above problems and defects existing in the prior art.

[0004] According to one aspect of the utility model, a connector assembly is provided. The connector assembly includes: a circuit board; a connector including a housing and a plurality of terminals disposed in the housing; a flat cable including a row of core wires and an inner insulating layer wrapping the row of core wires; and an insulator. The rear ends of the plurality of terminals extend out of the housing and are electrically connected to the circuit board, and the front ends of the row of core wires are exposed from the inner insulating layer and welded to the circuit board. The insulator is injection molded on the circuit board, the rear ends of the plurality of terminals, and the front ends of the row of core wires through an insert injection molding process, so that the insulator, the circuit board, the plurality of terminals, and the row of core wires become an integral part.

[0005] According to an exemplary embodiment of the utility model, a row of pads is formed on the circuit board, and the front ends of the row of core wires of the flat cable are respectively welded to the row of pads on the circuit board.

[0006] According to another exemplary embodiment of the utility model, the row of core wires of the flat cable includes a plurality of different types of core wires with different cross-sections and / or dimensions; the row of pads includes a plurality of different types of pads respectively corresponding to the plurality of different types of core wires.

[0007] According to another exemplary embodiment of the utility model, the row of core wires of the flat cable includes flat core wires with a rectangular cross-section and round core wires with a circular cross-section; the row of pads includes first pads corresponding to the flat core wires and second pads corresponding to the round core wires.

[0008] According to another exemplary embodiment of the present utility model, the width of the flat core wire is greater than the diameter of the circular core wire, and the thickness of the flat core wire is equal to the diameter of the circular core wire; the width of the row of pads is greater than the width of the second pad, and the thickness of the row of pads is equal to the thickness of the second pad.

[0009] According to another exemplary embodiment of the present utility model, the row of core wires includes a single flat core wire and multiple circular core wires, and the single flat core wire is the first or the last core wire in the row of core wires.

[0010] According to another exemplary embodiment of the present utility model, a plurality of terminals of the connector are arranged in upper and lower rows, the rear ends of the upper row of terminals are soldered to the front surface of the circuit board, and the rear ends of the lower row of terminals are soldered to the back surface of the circuit board.

[0011] According to another exemplary embodiment of the present utility model, the connector is a Type-C connector conforming to the Type-C interface standard.

[0012] According to another exemplary embodiment of the present utility model, the connector further includes a shielding case sleeved outside the housing, and the rear end of the shielding case is sleeved and latched to the insulator to fix the connector to the front end of the insulator.

[0013] According to another exemplary embodiment of the present utility model, the flat cable further includes: a shielding layer wrapped outside the inner insulating layer; and an outer insulating layer wrapped outside the shielding layer. The connector assembly further includes: a shielding cover mounted on the insulator. The rear end of the shielding case is inserted into the front end of the shielding cover and is in electrical contact with the front end of the shielding cover, and the rear end of the shielding cover is crimped to the shielding layer exposed from the outer insulating layer of the flat cable.

[0014] According to another exemplary embodiment of the present utility model, a crimping portion is formed on the rear end of the shielding cover, and the crimping portion is crimped to the shielding layer of the flat cable.

[0015] According to another exemplary embodiment of the present utility model, an elastic buckle is formed on the front end of the shielding cover, and a engaging groove is formed on the rear end of the shielding case, and the elastic buckle is latched into the engaging groove to latch the rear end of the shielding case to the front end of the shielding cover.

[0016] According to another exemplary embodiment of the present utility model, a contact projection protruding inward is formed on the shielding cover, an opening is formed on the insulator, a part of the circuit board is exposed via the opening, and the contact projection of the shielding cover is engaged into the opening of the insulator and is in electrical contact with the circuit board.

[0017] According to another exemplary embodiment of the present utility model, the shielding cover includes an upper shielding cover and a lower shielding cover assembled together. A spring piece is formed on a side wall of one of the upper shielding cover and the lower shielding cover, and a card slot is formed on the other. The spring piece is locked into the card slot to lock the upper shielding cover and the lower shielding cover together.

[0018] According to another exemplary embodiment of the present utility model, the connector assembly further includes: an outer insulating shell, sleeved on the shielding cover and having a front port and a rear port opposite to each other in its axial direction. The flat cable is led out from the rear port of the outer insulating shell, and a part of the connector protrudes from the front port of the outer insulating shell.

[0019] According to another exemplary embodiment of the present utility model, the connector assembly further includes: a rear end cover, sleeved on the flat cable and locked to the rear end of the outer insulating shell for holding the flat cable to the outer insulating shell.

[0020] According to another exemplary embodiment of the present utility model, the rear end cover includes: a fixing part for locking to the rear end of the outer insulating shell; and a buffer part extending rearward from the fixing part and capable of elastic deformation. The flat cable passes through the buffer part, and the buffer part provides stress buffering for the flat cable to prevent the flat cable from being bent and damaged.

[0021] According to another aspect of the present utility model, a flat cable is provided. The flat cable includes: a row of core wires; and an inner insulating layer wrapping the row of core wires. One end of the row of core wires is exposed from the inner insulating layer for soldering to the circuit board of the connector assembly, and the row of core wires includes multiple different types of core wires with different cross-sections and / or dimensions.

[0022] According to an exemplary embodiment of the present utility model, the row of core wires includes flat core wires with a rectangular cross-section and round core wires with a circular cross-section.

[0023] According to another exemplary embodiment of the present utility model, the flat cable further includes: a shielding layer wrapping the outside of the inner insulating layer; and an outer insulating layer wrapping the outside of the shielding layer. One end of the shielding layer is exposed from the outer insulating layer for electrical connection to the shielding cover of the connector assembly.

[0024] In each of the foregoing exemplary embodiments according to the present utility model, the flat cable has the advantages of small volume, easy handling, and convenient soldering, enabling automated production, improving production efficiency, and reducing manufacturing costs.

[0025] In addition, in some of the foregoing exemplary embodiments according to the present utility model, the flat cable further has a shielding layer, which can ensure the stability of signal transmission of the connector assembly.

[0026] Through the description of the present utility model with reference to the accompanying drawings hereinafter, other objects and advantages of the present utility model will become apparent and can help to have a comprehensive understanding of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A perspective schematic view showing a connector assembly according to an exemplary embodiment of the present utility model;

[0028] Figure 2 An exploded schematic view showing a connector assembly according to an exemplary embodiment of the present utility model;

[0029] Figure 3 Another exploded schematic view showing a connector assembly according to an exemplary embodiment of the present utility model;

[0030] Figure 4 A perspective schematic view showing a connector assembly according to an exemplary embodiment of the present utility model, in which the outer insulating shell and the rear end cover are removed;

[0031] Figure 5 A perspective schematic view showing the electrical connection module and the shielding cover of a connector assembly according to an exemplary embodiment of the present utility model;

[0032] Figure 6 A perspective schematic view showing the electrical connection module of a connector assembly according to an exemplary embodiment of the present utility model;

[0033] Figure 7 A perspective schematic view showing the electrical connection module of a connector assembly according to an exemplary embodiment of the present utility model, in which the insulator is not shown;

[0034] Figure 8 A perspective schematic view showing the circuit board and the flat cable of a connector assembly according to an exemplary embodiment of the present utility model;

[0035] Figure 9 An exploded schematic view showing the circuit board and the flat cable of a connector assembly according to an exemplary embodiment of the present utility model;

[0036] Figure 10Displays a cross-sectional view of a flat cable of a connector assembly according to an exemplary embodiment of the present utility model. Detailed Description

[0037] The technical solution of the present utility model will be further specifically described below through embodiments in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present utility model with reference to the accompanying drawings is intended to explain the overall inventive concept of the present utility model and should not be construed as a limitation of the present utility model.

[0038] In addition, in the following detailed description, for the sake of explanation, many specific details are set forth to provide a thorough understanding of the embodiments of the present disclosure. However, it is obvious that one or more embodiments can be implemented without these specific details. In other instances, well-known structures and devices are illustrated in a schematic manner to simplify the drawings.

[0039] According to an overall inventive concept of the present utility model, a connector assembly is provided. The connector assembly includes: a circuit board; a connector including a housing and a plurality of terminals disposed in the housing; a flat cable including a row of core wires and an inner insulating layer wrapping the row of core wires; and an insulator. The rear ends of the plurality of terminals protrude from the housing and are electrically connected to the circuit board, and the front ends of the row of core wires are exposed from the inner insulating layer and are soldered to the circuit board. The insulator is injection molded on the circuit board, the rear ends of the plurality of terminals, and the front ends of the row of core wires through an insert injection molding process, so that the insulator, the circuit board, the plurality of terminals, and the row of core wires become an integral part.

[0040] According to another overall inventive concept of the present utility model, a flat cable is provided. The flat cable includes: a row of core wires; and an inner insulating layer wrapping the row of core wires. One end of the row of core wires is exposed from the inner insulating layer for soldering to a circuit board of a connector assembly, and the row of core wires includes multiple different types of core wires with different cross-sections and / or dimensions.

[0041] Figure 1 Displays a perspective schematic view of a connector assembly according to an exemplary embodiment of the present utility model; Figure 2 Displays an exploded schematic view of a connector assembly according to an exemplary embodiment of the present utility model; Figure 3 Displays another exploded schematic view of a connector assembly according to an exemplary embodiment of the present utility model; Figure 4 Displays a perspective schematic view of a connector assembly according to an exemplary embodiment of the present utility model, in which the outer insulating shell 8 and the rear end cover 9 are removed; Figure 5A perspective view showing the electrical connection module and the shielding cover 5 of the connector assembly according to an exemplary embodiment of the present utility model; Figure 6 A perspective view showing the electrical connection module of the connector assembly according to an exemplary embodiment of the present utility model; Figure 7 A perspective view showing the electrical connection module of the connector assembly according to an exemplary embodiment of the present utility model, wherein the insulator 4 is not shown; Figure 8 A perspective view showing the circuit board 3 and the flat cable 1 of the connector assembly according to an exemplary embodiment of the present utility model; Figure 9 An exploded view showing the circuit board 3 and the flat cable 1 of the connector assembly according to an exemplary embodiment of the present utility model; Figure 10 A cross-sectional view showing the flat cable 1 of the connector assembly according to an exemplary embodiment of the present utility model.

[0042] As Figures 1 to 10 Shown, in an exemplary embodiment of the present utility model, a connector assembly is disclosed. The connector assembly includes: a flat cable 1, a connector 2, a circuit board 3, and an insulator 4. The connector 2 includes a housing 20 and a plurality of terminals 21 disposed in the housing 20. The flat cable 1 includes a row of core wires 10 and an inner insulating layer 13 that wraps the row of core wires 10. The rear ends of the plurality of terminals 21 extend out of the housing 20 and are electrically connected to the circuit board 3, and the front ends of the row of core wires 10 are exposed from the inner insulating layer 13 and are soldered to the circuit board 3. The insulator 4 is injection molded onto the circuit board 3, the rear ends of the plurality of terminals 21, and the front ends of the row of core wires 10 by an insert molding process, such that the insulator 4, the circuit board 3, the plurality of terminals 21, and the row of core wires 10 become an integral part.

[0043] As Figures 1 to 10 Shown, in the illustrated embodiment, a row of pads 30 is formed on the circuit board 3, and the front ends of the row of core wires 10 of the flat cable 1 are respectively soldered to the row of pads 30 on the circuit board 3.

[0044] As Figures 1 to 10 Shown, in the illustrated embodiment, the row of core wires 10 of the flat cable 1 includes a plurality of different types of core wires 10 having different cross-sections and / or dimensions. The row of pads 30 includes a plurality of different types of pads 30 respectively corresponding to the plurality of different types of core wires 10.

[0045] As Figures 1 to 10 Shown, in the illustrated embodiment, the row of core wires 10 of the flat cable 1 includes flat core wires 11 having a rectangular cross-section and round core wires 12 having a circular cross-section. The row of pads 30 includes first pads 31 corresponding to the flat core wires 11 and second pads 32 corresponding to the round core wires 12.

[0046] AsFigures 1 to 10 As shown, in the illustrated embodiment, the width of the flat core wire 11 is greater than the diameter of the circular core wire 12, and the thickness of the flat core wire 11 is equal to the diameter of the circular core wire 12. The width of a row of pads 30 is greater than the width of the second pad 32, and the thickness of a row of pads 30 is equal to the thickness of the second pad 32.

[0047] As Figures 1 to 10 shown, in the illustrated embodiment, a row of core wires 10 includes a single flat core wire 11 and multiple circular core wires 12, and the single flat core wire 11 is the first or the last core wire 10 in the row of core wires 10.

[0048] As Figures 1 to 10 shown, in the illustrated embodiment, a plurality of terminals 21 of the connector 2 are arranged in upper and lower rows, the rear ends of the upper row of terminals 21 are soldered to the front side of the circuit board 3, and the rear ends of the lower row of terminals 21 are soldered to the back side of the circuit board 3.

[0049] As Figures 1 to 10 shown, in the illustrated embodiment, the connector 2 is a Type-C connector 2 that conforms to the Type-C interface standard.

[0050] As Figures 1 to 10 shown, in the illustrated embodiment, the connector 2 further includes a shielding case 22 sleeved outside the housing 20, and the rear end of the shielding case 22 is sleeved and latched onto the insulator 4 to fix the connector 2 to the front end of the insulator 4.

[0051] As Figures 1 to 10 shown, in the illustrated embodiment, the flat cable 1 further includes: a shielding layer 14 and an outer insulating layer 15. The shielding layer 14 is wrapped outside the inner insulating layer 13. The outer insulating layer 15 is wrapped outside the shielding layer 14. The connector assembly further includes a shielding cover 5, and the shielding cover 5 is mounted on the insulator 4. The rear end of the shielding case 22 is inserted into the front end of the shielding cover 5 and is in electrical contact with the front end of the shielding cover 5, and the rear end of the shielding cover 5 is crimped onto the shielding layer 14 exposed from the outer insulating layer 15 of the flat cable 1.

[0052] As Figures 1 to 10 shown, in the illustrated embodiment, a crimping portion 5a is formed on the rear end of the shielding cover 5, and the crimping portion 5a is crimped onto the shielding layer 14 of the flat cable 1.

[0053] As Figures 1 to 10 shown, in the illustrated embodiment, an elastic buckle 5b is formed on the front end of the shielding cover 5, and a engaging groove 2b is formed on the rear end of the shielding case 22, and the elastic buckle 5b is latched into the engaging groove 2b to latch the rear end of the shielding case 22 to the front end of the shielding cover 5.

[0054] As Figures 1 to 10As shown, in the illustrated embodiment, contact protrusions 5c protruding inward are formed on the shielding case 5, an opening 43 is formed on the insulator 4, a part of the circuit board 3 is exposed through the opening 43, and the contact protrusions 5c of the shielding case 5 are engaged into the opening 43 of the insulator 4 and are in electrical contact with the circuit board 3.

[0055] As Figures 1 to 10 shown, in the illustrated embodiment, the shielding case 5 includes an upper shielding case 5 and a lower shielding case 5 assembled together. A spring piece 5e is formed on the side wall of one of the upper shielding case 5 and the lower shielding case 5, and a card slot 5f is formed on the other. The spring piece 5e is locked into the card slot 5f to lock the upper shielding case 5 and the lower shielding case 5 together.

[0056] As Figures 1 to 10 shown, in the illustrated embodiment, the connector assembly further includes an outer insulating case 8. The outer insulating case 8 is sleeved on the shielding case 5 and has a front port and a rear port axially opposite to each other. The flat cable 1 is led out from the rear port of the outer insulating case 8, and a part of the connector 2 protrudes from the front port of the outer insulating case 8.

[0057] As Figures 1 to 10 shown, in the illustrated embodiment, the connector assembly further includes a rear end cover 9. The rear end cover 9 is sleeved on the flat cable 1 and is locked to the rear end of the outer insulating case 8 for holding the flat cable 1 to the outer insulating case 8.

[0058] As Figures 1 to 10 shown, in the illustrated embodiment, the rear end cover 9 includes: a fixing part 91 and a buffering part 92. The fixing part 91 is used for sleeving and locking to the rear end of the outer insulating case 8. The buffering part 92 extends rearward from the fixing part 91 and can be elastically deformed. The flat cable 1 passes through the buffering part 92, and the buffering part 92 provides stress buffering for the flat cable 1 to prevent the flat cable 1 from being bent and damaged.

[0059] As Figures 1 to 10 shown, in another exemplary embodiment of the present utility model, a flat cable 1 is also disclosed. The flat cable 1 includes: a row of core wires 10 and an inner insulating layer 13. The inner insulating layer 13 wraps the row of core wires 10. One end of the row of core wires 10 is exposed from the inner insulating layer 13 for soldering to the circuit board 3 of the connector assembly. The row of core wires 10 includes multiple different types of core wires 10 with different cross-sections and / or dimensions.

[0060] As Figures 1 to 10 shown, in the illustrated embodiment, the row of core wires 10 includes flat core wires 11 with a rectangular cross-section and round core wires 12 with a circular cross-section.

[0061] As Figures 1 to 10As shown, in the illustrated embodiment, the flat cable further includes: a shielding layer 14 and an outer insulating layer 15. The shielding layer 14 is wrapped around the outside of the inner insulating layer 13. The outer insulating layer 15 is wrapped around the outside of the shielding layer 14. One end of the shielding layer 14 is exposed from the outer insulating layer 15 for electrical connection to the shielding cover 5 of the connector assembly.

[0062] Those skilled in the art can understand that the above-described embodiments are all exemplary, and those skilled in the art can make improvements to them. The structures described in various embodiments can be freely combined without conflict in terms of structure or principle. These changes should reasonably fall within the protection scope of the present invention.

[0063] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate the preferred embodiments of the present invention and should not be construed as a limitation to the present invention.

[0064] Although some embodiments of the general concept of the present invention have been shown and described, those of ordinary skill in the art will understand that changes can be made to these embodiments without departing from the principles and spirit of the general concept of the present invention. The scope of the present invention is defined by the claims and their equivalents.

[0065] It should be noted that the term "comprising" does not exclude other elements or steps, and the terms "a" or "an" do not exclude a plurality. Additionally, any reference numerals in the claims should not be construed as limiting the scope of the present invention.

Claims

1. A connector assembly, characterized in that: include: Circuit board (3); A connector (2) comprising a housing (20) and a plurality of terminals (21) arranged in the housing (20); A flat cable (1) comprising a row of core wires (10) and an inner insulating layer (13) wrapping the row of core wires (10); and Insulator (4), The rear ends of the plurality of terminals (21) extend out of the housing (20) and are electrically connected to the circuit board (3), the front ends of the row of core wires (10) are exposed from the inner insulating layer (13) and are soldered to the circuit board (3), The insulator (4) is injection-molded onto the rear ends of the circuit board (3), the plurality of terminals (21) and the front ends of the row of core wires (10) through an embedded injection molding process, so that the insulator (4), the circuit board (3), the plurality of terminals (21) and the row of core wires (10) form an integral part.

2. The connector assembly according to claim 1, characterized in that: A row of solder pads (30) is formed on the circuit board (3), and front ends of a row of core wires (10) of the flat cable (1) are respectively soldered to the row of solder pads (30) of the circuit board (3).

3. The connector assembly according to claim 2, characterized in that: The row of core wires (10) of the flat cable (1) comprises a plurality of different types of core wires (10) having different cross-sections and / or sizes; The row of solder pads (30) includes a plurality of different types of solder pads (30) corresponding to the plurality of different types of core wires (10), respectively.

4. The connector assembly according to claim 2, characterized in that: A row of core wires (10) of the flat cable (1) comprises a flat core wire (11) with a rectangular cross section and a round core wire (12) with a round cross section; The row of pads (30) includes a first pad (31) corresponding to the flat core wire (11) and a second pad (32) corresponding to the round core wire (12).

5. The connector assembly according to claim 4, characterized in that: The width of the flat core wire (11) is greater than the diameter of the round core wire (12), and the thickness of the flat core wire (11) is equal to the diameter of the round core wire (12); The width of the row of pads (30) is greater than the width of the second pads (32), and the thickness of the row of pads (30) is equal to the thickness of the second pads (32).

6. The connector assembly according to claim 4, characterized in that: The row of core wires (10) comprises a single flat core wire (11) and a plurality of round core wires (12), and the single flat core wire (11) is the first core wire (10) or the last core wire (10) in the row of core wires (10).

7. The connector assembly according to claim 1, characterized in that: The plurality of terminals (21) of the connector (2) are arranged in two rows, upper and lower, the rear ends of the upper row terminals (21) are welded to the front side of the circuit board (3), and the rear ends of the lower row terminals (21) are welded to the back side of the circuit board (3).

8. The connector assembly according to claim 7, characterized in that: The connector (2) is a Type-C connector (2) that complies with the Type-C interface standard.

9. The connector assembly according to claim 1, characterized in that: The connector (2) further comprises a shielding shell (22) which is sleeved on the outside of the housing (20), and the rear end of the shielding shell (22) is sleeved and locked onto the insulator (4) to fix the connector (2) to the front end of the insulator (4).

10. The connector assembly according to claim 9, characterized in that: The flat cable (1) further comprises: a shielding layer (14) wrapped around the inner insulating layer (13); and An outer insulating layer (15) is wrapped around the outside of the shielding layer (14). The connector assembly further comprises: A shielding cover (5) is mounted on the insulator (4). The rear end of the shielding shell (22) is inserted into the front end of the shielding cover (5) and is in electrical contact with the front end of the shielding cover (5), and the rear end of the shielding cover (5) is crimped onto the shielding layer (14) of the flat cable (1) exposed from the outer insulating layer (15).

11. The connector assembly according to claim 10, characterized in that: A crimping portion (5a) is formed on the rear end of the shielding shell (5), and the crimping portion (5a) is crimped onto the shielding layer (14) of the flat cable (1).

12. The connector assembly according to claim 10, characterized in that: An elastic buckle (5b) is formed on the front end of the shielding cover (5), and an engagement groove (2b) is formed on the rear end of the shielding shell (22). The elastic buckle (5b) is locked into the engagement groove (2b) to lock the rear end of the shielding shell (22) to the front end of the shielding cover (5).

13. The connector assembly according to claim 10, characterized in that: A contact protrusion (5c) protruding inward is formed on the shielding cover (5), an opening (43) is formed on the insulator (4), a portion of the circuit board (3) is exposed through the opening (43), and the contact protrusion (5c) of the shielding cover (5) is engaged with the opening (43) of the insulator (4) and is in electrical contact with the circuit board (3).

14. The connector assembly according to claim 10, characterized in that: The shielding cover (5) comprises an upper shielding cover (5) and a lower shielding cover (5) assembled together, a spring sheet (5e) is formed on the side wall of one of the upper shielding cover (5) and the lower shielding cover (5), and a slot (5f) is formed on the other, and the spring sheet (5e) is locked into the slot (5f) to lock the upper shielding cover (5) and the lower shielding cover (5) together.

15. The connector assembly according to claim 10, wherein: Also includes: An outer insulating shell (8) is sleeved on the shielding cover (5) and has a front port and a rear port that are opposite to each other in the axial direction. The flat cable (1) is led out from a rear port of the outer insulating shell (8), and a portion of the connector (2) extends out from a front port of the outer insulating shell (8).

16. The connector assembly according to claim 15, characterized in that Also includes: A rear end cover (9) is mounted on the flat cable (1) and is locked onto the rear end of the outer insulating shell (8) to hold the flat cable (1) to the outer insulating shell (8).

17. The connector assembly according to claim 16, characterized in that: The rear end cover (9) comprises: A fixing portion (91) for locking onto the rear end of the outer insulating shell (8); and The buffer portion (92) extends rearward from the fixing portion (91) and is elastically deformable. The flat cable (1) passes through the buffer portion (92), and the buffer portion (92) provides stress buffering for the flat cable (1) to prevent the flat cable (1) from being bent and damaged.

18. A flat cable, characterized in that: include: a row of core wires (10); and An inner insulating layer (13) wraps the row of core wires (10), One end of the row of core wires (10) is exposed from the inner insulating layer (13) and is used for soldering to a circuit board (3) of the connector assembly. The row of core wires (10) comprises a plurality of different types of core wires (10) having different cross-sections and / or sizes.

19. The flat cable according to claim 18, characterized in that: The row of core wires (10) comprises a flat core wire (11) with a rectangular cross section and a round core wire (12) with a round cross section.

20. The flat cable according to claim 18, characterized in that Also includes: A shielding layer (14) wrapped around the outside of the inner insulating layer (13); and An outer insulating layer (15) is wrapped around the outside of the shielding layer (14). One end of the shielding layer (14) is exposed from the outer insulating layer (15) and is used for being electrically connected to the shielding cover (5) of the connector assembly.

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