Cable electrical connection device

Abstract

The present application provides a cable electrical connection device, which includes a connector, a flat wire and a grounding sheet. The flat wire is connected to the connector, and one end of the flat wire defines a soldering end. The flat wire includes an insulating body, a plurality of conductive cores, a shielding layer and an insulating layer. The conductive cores are embedded in the insulating body, one end of each of the conductive cores protrudes from the soldering end and is soldered to the connector, and the plurality of conductive cores includes a grounding core. The shielding layer is wrapped outside the insulating body. The insulating layer is wrapped outside the shielding layer. The shielding layer protrudes from the insulating layer at the soldering end to form a grounding portion. The grounding sheet includes an attaching portion and a grounding claw. The attaching portion is attached to the outside of the grounding portion of the shielding layer. The grounding claw extends from one side of the attaching portion and is electrically connected to the grounding core.

Description

Technical Field

[0001] This application relates to cable electrical connection devices, and more particularly to a cable electrical connection device with a grounded shield. Background Technology

[0002] Existing cable electrical connection devices generally consist of a cable with connectors at both ends for connecting electronic devices. The cable contains multiple parallel conductors, each encased in a metal shield to block external electromagnetic interference (such as crosstalk). However, the shielding layer of existing cable electrical connection devices is not grounded, thus offering limited shielding effectiveness for high-frequency signal transmission.

[0003] In view of this, the applicant has devoted himself to studying the aforementioned prior art and applying theoretical principles to try his best to solve the above-mentioned problems, which has become the target of the applicant's improvement. Utility Model Content

[0004] This application provides a cable electrical connection device with a grounded shield layer.

[0005] This application provides a cable electrical connection device, comprising a connector, a flat wire, and a grounding plate. The flat wire connects to the connector, and one end of the flat wire defines a solder end. The flat wire includes an insulating body, a plurality of conductive cores, a shielding layer, and an insulating layer. The conductive cores are embedded in the insulating body, and one end of each conductive core protrudes from the soldering end and is soldered to the connector, and the plurality of conductive cores includes a grounding core. The shielding layer covers the insulating body. The insulating layer covers the shielding layer. The shielding layer protrudes from the insulating layer at the soldering end to form a grounding portion. The grounding plate includes an attachment portion and a grounding claw. The attachment portion is attached to the outside of the grounding portion of the shielding layer. The grounding claw extends from one side of the attachment portion and is electrically connected to the grounding core.

[0006] In one embodiment of this application, the grounding claw is attached to the grounding wire core.

[0007] In one embodiment of this application, the connector has a circuit board with a grounding circuit, and the plurality of conductive cores are respectively soldered to the circuit board.

[0008] In one embodiment of this application, the grounding claw and the grounding wire core are electrically connected by welding a grounding circuit.

[0009] In one embodiment of this application, the connector has an outer mold, a portion of the circuit board is embedded in the outer mold, and the protruding conductive cores and grounding plates are all embedded in the outer mold.

[0010] In one embodiment of this application, a conductive patch is attached to the attachment portion, and the conductive patch is further attached to the ground portion of the shielding layer.

[0011] In one embodiment of this application, a conductive patch covers a grounding sheet.

[0012] In one embodiment of this application, a conductive patch covers the side edge of a flat wire.

[0013] In one embodiment of this application, the insulating body is in the form of a strip.

[0014] In one embodiment of this application, the insulating body protrudes from the shielding layer at the welding end of the flat wire.

[0015] The aforementioned grounding plate can ground the shielding layer to improve its shielding effect and effectively reduce crosstalk interference. Attached Figure Description

[0016] Figure 1 This is a perspective view of the cable electrical connection device according to the first embodiment of this application.

[0017] Figure 2 This is an exploded perspective view of the cable electrical connection device according to the first embodiment of this application.

[0018] Figure 3 This is a perspective view of the connection structure of the cable electrical connection device according to the first embodiment of this application.

[0019] Figure 4 This is another perspective view of the connection structure of the cable electrical connection device according to the first embodiment of this application.

[0020] Figure 5 This is an exploded perspective view of the connection structure of the cable electrical connection device according to the first embodiment of this application.

[0021] Figure 6 This is an exploded perspective view of one of the flat wire configurations in the cable electrical connection device of the first embodiment of this application.

[0022] Figure 7 This is a perspective view of one of the flat wire configurations in the cable electrical connection device of the first embodiment of this application.

[0023] Figure 8 for Figure 3 The middle frame shows a magnified view of point 8.

[0024] Figure 9 This is a side view of the cable electrical connection device according to the first embodiment of this application.

[0025] Figure 10 This is a three-dimensional schematic diagram of a cable electrical connection device according to the second embodiment of this application.

[0026] Figure 11 for Figure 10 The middle frame shows a magnified view of point 11.

[0027] Figure 12This is a three-dimensional schematic diagram of a cable electrical connection device according to the third embodiment of this application.

[0028] Figure 13 for Figure 12 The middle frame shows a magnified view of point 13.

[0029] Figure 14 This is a side view of a cable electrical connection device according to a third embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10: Connector;

[0032] 20: Cables;

[0033] 100: Circuit board;

[0034] 101: Groove;

[0035] 110: terminal;

[0036] 120, 120a: Grounding solder joint;

[0037] 120b: Functional solder joint;

[0038] 200: Outer mold;

[0039] 300: Outer casing;

[0040] 400: Flat wire;

[0041] 401: Welding end;

[0042] 410: Insulating body;

[0043] 420: Conductive wire core;

[0044] 420a: Grounding conductor;

[0045] 420b: Functional wire core;

[0046] 430: Shielding layer;

[0047] 431: Grounding part;

[0048] 440: Insulation layer;

[0049] 500: Grounding plate;

[0050] 510: Attachment part;

[0051] 520: Grounding claw;

[0052] 600: Conductive patch. Detailed Implementation

[0053] In the description of this application, it should be understood that the terms "front side", "rear side", "left side", "right side", "front end", "rear end", "end", "longitudinal", "lateral", "vertical", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0054] Unless otherwise defined herein, terms such as "substantially" and "approximately" are used to describe and narrate small changes. When used in the context of an event or situation, these terms may include the exact moment the event or situation occurred, or an approximate point in time. For example, when used in the context of a numerical value, these terms may include a range of variation less than or equal to ±10% of the numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%.

[0055] The detailed description and technical content of this application will be explained below with reference to the accompanying drawings. However, the accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application.

[0056] Figure 1 This is a perspective view of the cable electrical connection device according to the first embodiment of this application. (See also...) Figure 1 The first embodiment of this application provides a cable electrical connection device, which includes a connector 10 and a cable 20, wherein the cable 20 is connected to the connector 10. Figure 2 This is an exploded perspective view of the cable electrical connection device according to the first embodiment of this application. (See attached diagram.) Figure 2 The connector 10 includes a circuit board 100, an outer mold 200, and a housing 300. The circuit board 100 has multiple terminals 110 and a grounding circuit (not shown). The terminals 110 are arranged along one side of the side edge of the circuit board 100. A portion of the circuit board 100 is embedded in the outer mold 200, and all of its terminals 110 are exposed outside the outer mold 200. Specifically, the outer mold 200 is bonded to the circuit board 100 by an overmolding method. The housing 300 is fitted over the outer mold 200. For ease of explanation, the outer mold 200 and the housing 300 are not shown in the figures below. In another embodiment, the outer mold 200 may also be assembled to sandwich a portion of the circuit board 100, but this is not a limitation of the invention.

[0057] Figure 3 This is a three-dimensional schematic diagram of the connection structure of the cable electrical connection device according to the first embodiment of this application. Figure 4This is another perspective view of the connection structure of the cable electrical connection device according to the first embodiment of this application. Figure 5 This is an exploded perspective view of the connection structure of the cable electrical connection device according to the first embodiment of this application. (See attached diagram) Figures 3 to 5 Terminals 110 are arranged along the side edge of the circuit board 100. In one embodiment, terminals 110 are provided at corresponding locations on both sides of the circuit board 100. A plurality of solder joints are provided on the surface of the circuit board 100, including a plurality of grounding solder joints 120a connected to a grounding circuit, and other functional solder joints 120b not belonging to the grounding circuit. In this embodiment, these solder joints are located on the inner surface of the circuit board 100 relative to the sides of each terminal 110. In one embodiment, solder joints are provided at corresponding locations on both sides of the circuit board 100.

[0058] See Figures 3 to 5 The cable 20 includes at least one flat wire 400. The cable 20 illustrated in this embodiment includes at least two flat wires 400, but this application is not limited to this. Specifically, the two flat wires 400 are stacked and connected to both sides of the same edge of the connector 10, and the flat wires 400 are connected to the connector 10 on the side opposite to the aforementioned terminal 110.

[0059] The aforementioned two flat wires 400 are soldered to both sides of the circuit board 100. Each flat wire 400 has the same structure, so the following text will use the flat wire 400 connected to the circuit board 100 as an example.

[0060] Figure 6 This is an exploded perspective view of a flat wire 400 configured in the cable electrical connection device of the first embodiment of this application. Figure 7 This is a perspective view of a flat wire 400 configured in the cable electrical connection device of the first embodiment of this application. Figure 8 for Figure 3 The middle frame shows a magnified view of point 8. Figure 9 A side view of the cable electrical connection device according to the first embodiment of this application. (See also...) Figures 6 to 9 One end of the flat wire 400 is defined with a solder end 401, which is connected to the connector 10 and as shown in the figure. Figure 2 As shown, it is embedded in the outer mold 200. The aforementioned welding end 401 does not only refer to the end of the flat wire 400, but further includes a certain length of the flat wire 400 adjacent to the end, that is, the portion where all components of the flat wire 400 are located. In this embodiment, it can be embedded in, for example... Figure 2 The part shown in the outer mold 200 is interpreted as the welding end 401.

[0061] The flat wire 400 includes an insulating body 410, multiple conductive cores 420, a shielding layer 430, and an insulating layer 440. The insulating body 410 is a strip-shaped insulator. The conductive cores 420 are embedded in the insulating body 410. The multiple conductive cores 420 are arranged side-by-side and extend along the longitudinal direction (or length direction, not referring to a specific straight line; the longitudinal direction may change as the flat wire 400 is bent) of the insulating body 410. One end of each conductive core 420 protrudes from the soldering end 401 and is soldered to the circuit board 100 of the connector 10. The protruding ends of each conductive core 420 are embedded in a shielding layer 430. Figure 2 The outer mold 200 is shown.

[0062] Specifically, the plurality of conductive cores 420 includes at least one grounding core 420a and functional cores 420b for other functions. The grounding core 420a is used to connect to the grounding circuit on the circuit board 100, and the functional cores 420b are connected to the circuit board 100 for power supply or signal transmission. Specifically, in this embodiment, a plurality of grounding cores 420a are configured, and the grounding cores 420a are respectively soldered to each grounding solder point 120a connected to the grounding circuit. The remaining functional solder points 120b are used for soldering connections of the functional cores 420b. The shielding layer 430 is a conductive coating layer that covers the insulating body 410 to shield the electromagnetic interference of the plurality of conductive cores 420. The insulating layer 440 covers the shielding layer 430 to insulate the flat wire 400 from the outside. The shielding layer 430 protrudes from the insulating layer 440 at the soldering end 401 to form a grounding portion 431.

[0063] In this embodiment, the cable 20 of the cable electrical connection device further includes a grounding plate 500. The grounding plate 500 is attached to the soldering end 401 of the flat wire 400 and is embedded in the outer mold 200. The grounding plate 500 includes an attachment portion 510 and a grounding claw 520. The attachment portion 510 is sheet-shaped and is attached to the outside of the grounding portion 431 of the shielding layer 430. The grounding claw 520 extends from one side of the attachment portion 510 and is electrically connected to the grounding core 420a. In this embodiment, multiple grounding claws 520 are arranged corresponding to multiple grounding cores 420a, and each grounding claw 520 directly overlaps the corresponding grounding core 420a, thereby being electrically connected together with the grounding core 420a to the grounding solder point 120a corresponding to the grounding circuit.

[0064] The aforementioned grounding piece 500 grounds the shielding layer 430, thereby improving its shielding effect and effectively reducing crosstalk interference from the functional core 420b. Specifically, assembly is completed simply by removing the insulation layer 440 at the soldering end 401 to expose the grounding portion 431 of the shielding layer 430, and then attaching the grounding piece 500 to the grounding portion 431. Therefore, the structure of this application is easy to assemble. (See reference...) Figures 7 to 9 Furthermore, a conductive patch 600 can also be attached to the attachment part 510, and as... Figure 9 As shown, one side of the attachment portion 510 contacts the outer side of the grounding portion 431, and the conductive patch 600 is attached to the other side of the attachment portion 510. A portion of the conductive patch 600 extends beyond the edge of the attachment portion 510 and is attached to the grounding portion 431 of the shielding layer 430, thereby electrically connecting the side of the attachment portion 510 that does not contact the grounding portion 431 to the shielding layer 430. This increases the contact area between the shielding layer 430 and the grounding patch 500, thereby reducing the resistance between them.

[0065] See Figure 10 and Figure 11 The second embodiment of this application provides a cable electrical connection device, the structure of which is generally the same as that of the first embodiment. Specifically, the cable electrical connection device of this embodiment includes a connector 10 and a cable 20, the cable 20 being connected to the connector 10. The connector 10 has at least a circuit board 100, the circuit board 100 having a grounding circuit (not shown) and a plurality of terminals 110, the terminals 110 being arranged along the side edge of the circuit board 100, and all of the terminals 110 being exposed. The connector 10 can be like that of the first embodiment. Figure 1 and Figure 2 The diagram further includes an outer mold 200 and a housing 300. A portion of the circuit board 100 is embedded in the outer mold 200; specifically, the outer mold 200 is coupled to the circuit board 100 using an overlay injection molding method. The housing 300 is fitted over the outer mold 200. Further details are omitted in this embodiment.

[0066] In this embodiment, the cable 20 includes at least one flat wire 400. The cable 20 illustrated in this embodiment includes at least two flat wires 400, but this application is not limited to this. Specifically, the two flat wires 400 are stacked and connected to the same side of the connector 10, and the flat wires 400 are connected to the connector 10 on the side opposite to the aforementioned terminal 110.

[0067] The aforementioned two flat wires 400 are respectively soldered to both sides of the circuit board 100. The structures of the two flat wires 400 and the construction of the circuit board 100 to which they are soldered are the same; therefore, the following description uses one of the flat wires 400 as an example. One end of the flat wire 400 is defined as a soldering end 401, which is connected to the connector 10 and embedded in the outer mold 200. The flat wire 400 includes an insulating body 410, a plurality of conductive cores 420, a shielding layer 430, and an insulating layer 440. The insulating body 410 is a strip-shaped insulator. The conductive cores 420 are embedded in the insulating body 410. The plurality of conductive cores 420 are arranged side by side, and each conductive core 420 extends longitudinally along the insulating body 410. One end of each conductive core 420 protrudes from the soldering end 401 and is soldered to the circuit board 100 of the connector 10.

[0068] Specifically, among the plurality of conductive cores 420, there is at least one grounding core 420a and functional cores 420b for other functions. The grounding core 420a is soldered to a grounding solder joint 120a on the circuit board to connect to the grounding circuit on the circuit board 100. The functional cores 420b are soldered to functional solder joints 120b on the circuit board 100 for power supply or signal transmission. The shielding layer 430 is a conductive coating that covers the insulating body 410 to shield the plurality of conductive cores 420 from electromagnetic interference. The insulating layer 440 covers the shielding layer 430 to insulate the flat wire 400 from the outside. The shielding layer 430 protrudes from the insulating layer 440 at the soldering end 401 to form a grounding portion 431.

[0069] In this embodiment, the cable 20 of the cable electrical connection device further includes a grounding plate 500. The grounding plate 500 is attached to the solder end 401 of the flat wire 400. The grounding plate 500 includes an attachment portion 510 and at least one grounding claw 520. The attachment portion 510 is sheet-shaped and is attached to the outside of the grounding portion 431 of the shielding layer 430 with its central surface. The grounding claw 520 extends from one side of the attachment portion 510 and is electrically connected to the grounding core 420a. In this embodiment, the grounding claw 520 and the grounding core 420a are respectively soldered to the grounding circuit and are electrically connected to the grounding circuit together. In this embodiment, multiple grounding claws 520 are configured for multiple grounding cores 420a, but this application is not limited to this.

[0070] This embodiment differs from the first embodiment in that the grounding claw 520 and the grounding circuit are electrically connected via a different physical structure than in the first embodiment. Multiple solder points are provided on the surface of the circuit board 100, including multiple grounding solder points (120, 120a) connected to the grounding circuit, and other functional solder points 120b not belonging to the grounding circuit. The grounding core 420a is soldered to the corresponding grounding solder point 120a on the circuit board for connecting to the grounding circuit on the circuit board 100, while the functional core 420b is soldered to the functional solder point 120b on the circuit board 100 for power supply or signal transmission. Some of the grounding solder points 120 are configured corresponding to each grounding claw 520, with the grounding claw 520 extending across the corresponding grounding core 420a and soldered to the corresponding grounding solder point 120.

[0071] In this embodiment, a conductive patch 600 is attached to the attachment portion 510, and the ground portion 431 of the shielding layer 430 is also attached to the conductive patch 600. Another difference between this embodiment and the first embodiment described above is that the conductive patch 600 covers the grounding piece 500 and the side edge of the flat wire 400 before attaching the ground portion 431. Specifically, the conductive patch 600 extends beyond the two side edges of the attachment portion 510 and covers the side edge of the flat wire 400 before attaching the ground portion 431 of the shielding layer 430. This electrically connects the other side of the attachment portion 510 to the grounding shielding layer 430, which increases the contact area between the shielding layer 430 and the grounding piece 500 to reduce the resistance between them. This structure also binds the grounding piece 500 to the flat wire 400.

[0072] Figure 12 This is a three-dimensional schematic diagram of a cable electrical connection device according to the third embodiment of this application. Figure 13 for Figure 12 The middle frame shows a magnified view of point 13. Figure 14 This is a side view of a cable electrical connection device according to a third embodiment of this application. (See also...) Figures 12 to 14 The third embodiment of this application provides a cable electrical connection device, the structure of which is generally the same as that of the first embodiment. Specifically, the cable electrical connection device of this embodiment includes a connector 10 and a cable 20, the cable 20 being connected to the connector 10. The connector 10 has at least a circuit board 100, the circuit board 100 having a grounding circuit (not shown) and a plurality of terminals 110, the terminals 110 being arranged along the side edge of the circuit board 100, and all terminals 110 being exposed. The connector 10 can be like that of the first embodiment. Figure 1 and Figure 2The diagram further includes an outer mold 200 and a housing 300. A portion of the circuit board 100 is embedded in the outer mold 200; specifically, the outer mold 200 is coupled to the circuit board 100 using an overlay injection molding method. The housing 300 is fitted over the outer mold 200. Further details are omitted in this embodiment.

[0073] In this embodiment, the cable 20 includes at least one flat wire 400. The cable 20 illustrated in this embodiment includes at least two flat wires 400, but this application is not limited to this. Specifically, the two flat wires 400 are stacked and connected to the same side of the connector 10, and the flat wires 400 are connected to the connector 10 on the side opposite to the aforementioned terminal 110.

[0074] The aforementioned two flat wires 400 are respectively soldered to both sides of the circuit board 100. The structures of the two flat wires 400 and the construction of the circuit board 100 to which they are soldered are the same; therefore, the following description uses one of the flat wires 400 as an example. One end of the flat wire 400 is defined as a soldering end 401, which is connected to the connector and embedded in the outer mold 200. The flat wire 400 includes an insulating body 410, a plurality of conductive cores 420, a shielding layer 430, and an insulating layer 440. The insulating body 410 is a strip-shaped insulator. The conductive cores 420 are embedded in the insulating body 410. The plurality of conductive cores 420 are arranged side by side, and each conductive core 420 extends longitudinally along the insulating body 410. One end of each conductive core 420 protrudes from the soldering end 401 and is soldered to the circuit board 100 of the connector 10.

[0075] Specifically, the plurality of conductive cores 420 includes at least one grounding core 420a and functional cores 420b for other functions. The grounding core 420a is soldered to a grounding solder joint 120a on the circuit board 100 to connect to the grounding circuit on the circuit board 100. The functional cores 420b are soldered to functional solder joints 120b on the circuit board 100 for power supply or signal transmission. The shielding layer 430 is a conductive coating that covers the insulating body 410 to shield the plurality of conductive cores 420 from electromagnetic interference. The insulating layer 440 covers the shielding layer 430 to insulate the flat wire 400 from the outside. The shielding layer 430 protrudes from the insulating layer 440 at the soldering end 401 to form a grounding portion 431.

[0076] In this embodiment, the cable 20 of the cable electrical connection device further includes a grounding plate 500. The grounding plate 500 is attached to the solder end 401 of the flat wire 400. The grounding plate 500 includes an attachment portion 510 and at least one grounding claw 520. The attachment portion 510 is sheet-shaped and is attached to the outside of the grounding portion 431 of the shielding layer 430 with its central surface. The grounding claw 520 extends from one side of the attachment portion 510 and is electrically connected to the grounding core 420a. In this embodiment, multiple grounding claws 520 are arranged corresponding to multiple grounding cores 420a, and each grounding claw 520 directly overlaps the corresponding grounding core 420a and is electrically connected to the grounding circuit together with the grounding core 420a.

[0077] This embodiment differs from the first embodiment in that the edge of the circuit board 100 is provided with a groove 101 to accommodate the insulating body 410 at the soldering end 401 of the flat wire 400, thereby reducing the thickness of the cable 20. In this embodiment, a conductive patch 600 is attached to the attachment portion 510, and the ground portion 431 of the shielding layer 430 is also attached to the conductive patch 600. Specifically, the conductive patch 600 covers the grounding piece 500 and the side edge of the flat wire 400 to attach the ground portion 431. Specifically, the conductive patch 600 extends and protrudes from both sides of the attachment portion 510 to cover the side edge of the flat wire 400 and attach the ground portion 431 of the shielding layer 430. This electrically connects the other side of the attachment portion 510 to the grounding shielding layer 430, which increases the contact area between the shielding layer 430 and the grounding piece 500 to reduce the resistance between them, and at the same time, it can bind the grounding piece 500 to the flat wire 400.

[0078] The above description is merely a preferred embodiment of this application and is not intended to limit the patent scope of this application. Other equivalent variations that utilize the patent spirit of this application should all fall within the patent scope of this application.

Claims

1. A cable electrical connection device, characterized in that, Include: Connector; A flat wire, connected to the connector, wherein one end of the flat wire is defined as a solder end, and the flat wire comprises: Insulating body; Multiple conductive cores are embedded in the insulating body, one end of each conductive core protrudes from the welding end and is welded to the connector, and the multiple conductive cores include a grounding core. A shielding layer is applied over the insulating body; and An insulating layer is provided outside the shielding layer, wherein the shielding layer protrudes from the insulating layer adjacent to the welding end to form a grounding portion; as well as A grounding plate, covering the grounding portion, the grounding plate comprising: An attachment portion is provided on the grounding portion; and A grounding claw extends from one side of the attachment portion and is electrically connected to the grounding core.

2. The cable electrical connection device as described in claim 1, characterized in that, The grounding claw is attached to the grounding wire core.

3. The cable electrical connection device as described in claim 1, characterized in that, The connector has a circuit board, and the plurality of conductive cores are respectively soldered to the circuit board.

4. The cable electrical connection device as described in claim 3, characterized in that, The circuit board is provided with a grounding circuit, and the grounding claw and the grounding wire core are respectively soldered to the grounding circuit and electrically connected.

5. The cable electrical connection device as described in claim 3, characterized in that, The connector has an outer mold, a portion of the circuit board is embedded in the outer mold, the flat wire adjacent to the side of the welding end, each of the conductive cores and the grounding plate are all embedded in the outer mold.

6. The cable electrical connection device as described in claim 1, characterized in that, A conductive patch is attached to the attachment portion, and a portion of the conductive patch is further attached to the ground portion of the shielding layer.

7. The cable electrical connection device as described in claim 6, characterized in that, The conductive patch covers the grounding plate.

8. The cable electrical connection device as described in claim 6, characterized in that, The conductive patch covers the side edge of the flat wire.

9. The cable electrical connection device as described in claim 1, characterized in that, The insulating body is in the form of a strip.

10. The cable electrical connection device as claimed in claim 1, characterized in that, The insulating body protrudes from the shielding layer at the welding end of the flat wire.

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