Signal transmission line and HDMI data line

Abstract

The utility model discloses a signal transmission line and an HDMI data line. The signal transmission line comprises two wires, an insulator, a ground wire and a shielding layer, the insulator wraps the two wires, the ground wire is arranged on the outer side of the insulator, and the shielding layer wraps the insulator and the ground wire; the surface of the insulator is provided with a groove extending along the extension direction of the ground wire, and a part of the ground wire is embedded in the groove. According to the utility model, the ground wire is not easy to slide relative to the insulator, and the ground wire can maintain its position relative to the insulator.

Description

Technical Field

[0001] The utility model relates to the technical field of signal lines, in particular to a signal transmission line and an HDMI data line. Background Art

[0002] Signal transmission line is a data line that transmits signals and is widely used in the field of electronic information technology. Some signal transmission lines have two conductors in their shielding layer, and the two conductors are respectively wrapped by two insulating layers. This kind of signal transmission line has problems of signal distortion and poor signal transmission quality.

[0003] In this regard, the prior art has designed a signal transmission line in which two conductors are wrapped by the same insulator. For example, Chinese utility model patent with publication number CN216528074U discloses such a signal transmission line. However, the ground wire of such a signal transmission line cannot be hinged together with the insulator, but is only wrapped by an external shielding layer. The ground wire is easy to slide relative to the insulator, resulting in a deviation in the position of the ground wire. Utility Model Content

[0004] The utility model provides a signal transmission line and an HDMI data line, which can prevent a ground line from sliding relatively to an insulator, and the ground line can maintain its position relatively to the insulator.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] According to the first aspect of the utility model, an embodiment of the utility model provides a signal transmission line, comprising two conductive wires, an insulator, a ground wire and a shielding layer, wherein the insulator wraps the two conductive wires, the ground wire is arranged on the outside of the insulator, and the shielding layer wraps the insulator and the ground wire; the surface of the insulator is provided with a groove extending along the extension direction of the ground wire, and a part of the ground wire is embedded in the groove.

[0007] In some embodiments, the groove includes a groove bottom, the groove bottom is arc-shaped, and a portion of the ground wire is embedded in the groove bottom.

[0008] In some embodiments, the groove further includes two connecting portions, which are respectively located on both sides of the groove bottom, and the groove bottom smoothly transitions to the surface of the insulator through the connecting portions.

[0009] In some embodiments, the two conductive lines are spaced apart by a predetermined distance.

[0010] In some embodiments, the shielding layer is aluminum foil.

[0011] According to a second aspect of the utility model, an embodiment of the utility model provides an HDMI data cable, comprising a plurality of inner core wires and an outer sheath wrapping all the inner core wires, at least one inner core wire being the signal transmission wire described in any one of the above-mentioned first aspect.

[0012] In some embodiments, the inner core wires are arranged along the width direction of the outer sheath.

[0013] In some embodiments, the width direction of the insulator of the signal transmission line is parallel to the width direction of the outer casing, and the ground line of the signal transmission line is located at the bottom of the insulator.

[0014] The utility model has at least the following beneficial effects: a groove extending along the extension direction of the ground wire is provided on the surface of the insulator, a part of the ground wire is embedded in the groove, and the groove plays a role in positioning the ground wire. Under the synchronous action of the wrapping force of the shielding layer, the ground wire is not easy to separate from the groove, and is not easy to slide relative to the insulator, so that the ground wire can maintain its position relative to the insulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic cross-sectional view of a signal transmission line according to an embodiment of the utility model;

[0016] Figure 2 A cross-sectional schematic diagram of an insulator according to an embodiment of the utility model;

[0017] Figure 3 The figure is a cross-sectional schematic diagram of an HDMI data cable according to an embodiment of the present invention.

[0018] Wherein, the accompanying drawings are marked as follows:

[0019] Conductor 100 , insulator 200 , groove 210 , groove bottom 211 , connecting portion 212 , ground wire 300 , shielding layer 400 , inner core wire 500 , outer sheath 600 . DETAILED DESCRIPTION

[0020] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.

[0021] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0023] The embodiment of the utility model provides a signal transmission line, such as Figure 1 and Figure 2 As shown, it includes two wires 100, an insulator 200, a ground wire 300 and a shielding layer 400. The wire 100 can transmit signals, and the insulator 200 is made of an insulating material such as rubber, which wraps the two wires 100. The ground wire 300 is arranged on the outside of the insulator 200 and extends along the extension direction of the insulator 200 following the insulator 200. The shielding layer 400 wraps the insulator 200 and the ground wire 300, plays a role in shielding external signals and avoiding interference between different signal transmission lines. The surface of the insulator 200 is provided with a groove 210 extending along the extension direction of the ground wire 300, and a part of the ground wire 300 is embedded in the groove 210. The groove 210 will play a role in positioning the ground wire 300. Under the synchronous action of the wrapping force of the shield 400, the ground wire 300 is not easy to get out of the groove 210, and it is not easy to slide relative to the insulator 200, so that the ground wire 300 can maintain its position relative to the insulator 200, which is helpful for wiring and also helps to improve the signal transmission quality.

[0024] In some embodiments, the groove 210 includes a groove bottom 211, which is arc-shaped, and a portion of the ground wire 300 is embedded in the groove bottom 211. The shape of the groove bottom 211 is adapted to the cross-sectional shape of the ground wire 300, so that the ground wire 300 can be relatively close to the groove bottom 211 to improve the positioning effect of the ground wire 300. The groove bottom 211 can be the entire groove 210 or a portion of the groove 210.

[0025] Furthermore, the groove 210 further includes two connecting portions 212, which are respectively located on both sides of the groove bottom 211. The groove bottom 211 smoothly transitions with the surface of the insulator 200 through the connecting portions 212, and the two sides of the connecting portion 212 are respectively connected to the groove bottom 211 and the surface of the insulator 200. The connecting portion 212 may also be arc-shaped and tangent to the groove bottom 211 and the surface of the insulator 200, respectively.

[0026] In some embodiments, the two wires 100 are spaced apart by a preset distance, which is determined by a person skilled in the art according to actual conditions, and can avoid a short circuit between the two wires 100 .

[0027] In some embodiments, the shielding layer 400 is aluminum foil, which is easy to bend and can be well wrapped around the outside of the insulator 200 and the ground wire 300, thus having a good shielding effect.

[0028] The embodiment of the utility model provides an HDMI data cable, such as Figure 3 As shown, it includes a plurality of inner core wires 500 and an outer sheath 600 that wraps all the inner core wires 500, wherein at least one inner core wire 500 is a signal transmission wire of any of the above embodiments. The specific description of the signal transmission wire can refer to the above embodiments, and will not be repeated here. When the inner core wire 500 is not a signal transmission wire of any of the above embodiments, a conventional core wire can be selected.

[0029] In some embodiments, the inner core wire 500 is arranged along the width direction of the outer jacket 600 to form a flat wire structure, which can reduce the overall thickness.

[0030] In some embodiments, the width direction of the insulator 200 of the signal transmission line is parallel to the width direction of the outer casing 600, and the ground wire 300 of the signal transmission line is located at the bottom of the insulator 200. Thus, the direction of the signal transmission line remains consistent, which facilitates unified wiring inside the outer casing 600.

[0031] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.

Claims

1. A signal transmission line, characterized in that: The invention comprises two conducting wires, an insulator, a ground wire and a shielding layer, wherein the insulator wraps the two conducting wires, the ground wire is arranged on the outside of the insulator, and the shielding layer wraps the insulator and the ground wire; the surface of the insulator is provided with a groove extending along the extension direction of the ground wire, and a part of the ground wire is embedded in the groove.

2. The signal transmission line according to claim 1, characterized in that: The groove comprises a groove bottom which is in an arc shape, and a part of the ground wire is embedded in the groove bottom.

3. The signal transmission line according to claim 2, characterized in that: The groove further comprises two connecting parts, which are respectively located at two sides of the groove bottom, and the groove bottom smoothly transitions to the surface of the insulator through the connecting parts.

4. The signal transmission line according to any one of claims 1 to 3, characterized in that: The two wires are separated by a preset distance.

5. The signal transmission line according to any one of claims 1 to 3, characterized in that: The shielding layer is aluminum foil.

6. An HDMI data cable, characterized in that: It comprises a plurality of inner core wires and an outer sheath wrapping all the inner core wires, and at least one of the inner core wires is the signal transmission wire according to any one of claims 1 to 5.

7. The HDMI data cable according to claim 6, characterized in that: The inner core wires are arranged along the width direction of the outer sheath.

8. The HDMI data cable according to claim 7, characterized in that: The width direction of the insulator of the signal transmission line is parallel to the width direction of the outer sheath, and the ground line of the signal transmission line is located at the bottom of the insulator.

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