Power cord structure

Abstract

A power cord structure is disclosed, comprising a conductive cord body consisting of plural conductive cords which are mutually entangled at a twist distance satisfying security requirements, and an opaque insulation protective outer layer, wherein the insulation protective outer layer includes an insulation cladding layer and a spiral color correspondence layer, the insulation cladding layer is wrapped around the outside of the conductive cord body; also, the spiral color correspondence layer spirally displays on the outer surface of the insulation cladding layer with at least three color segments, and the interval widths of such at least three color segments are in a proportional ratio to the twist distance satisfying security requirements of the plural conductive cords.

Claims

1. A power cord structure, comprising: a conductive cord body, formed by means of plural conductive cords mutually entangled at a twist distance satisfying security requirements; and an insulation protective outer layer, made of opaque materials, including an insulation cladding layer and a spiral color correspondence layer, in which the insulation cladding layer wraps around the outside of the conductive body, the spiral color correspondence layer spirally displays on the outer surface of the insulation cladding layer with at least three color segments, and the interval widths between such three color segments are in a proportional ratio to the twist distance of the plural conductive cords in the conductive cord body.

2. The power cord structure according to claim 1, wherein the power cord structure is an alternative current (AC) power cord.

3. The power cord structure according to claim 1, wherein the conductive cord body is formed by means of two conductive cords mutually entangled at a twist distance satisfying security requirements.

4. The power cord structure according to claim 1, wherein the conductive cord body is formed by means of three conductive cords mutually entangled at a twist distance satisfying security requirements.

5. The power cord structure according to claim 1, wherein the spiral color correspondence layer includes a first color segment, a second color segment and a third color segment, and such first color segment, second color segment and third color segment have respectively a different color.

6. The power cord structure according to claim 5, wherein the spirally displaying on the outer surface of the insulation cladding layer can be achieved by means of the repeatedly sequential arrangement with the first color segment, the second color segment and the third color segment.

7. The power cord structure according to claim 5, wherein the spirally displaying on the outer surface of the insulation cladding layer can be achieved by means of the repeatedly sequential arrangement with the first color segment, the second color segment, the first color segment and the third color segment.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows a view of the internal twisted cords of a conventional AC power cord.

(2) FIG. 2A shows an exterior structural view for a first embodiment of the power cord structure according to the present invention.

(3) FIG. 2B shows an interior partial structural view for the first embodiment of the power cord structure according to the present invention.

(4) FIG. 3 shows a comparison view of the interval widths of such colors and the twist distance satisfying relevant security regulation for the first embodiment of the power cord structure according to the present invention.

(5) FIG. 4 shows another exterior structural view for the first embodiment of the power cord structure according to the present invention.

(6) FIG. 5 shows an interior partial structural view for a second embodiment of the power cord structure according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(7) Other technical contents, aspects and effects in relation to the present invention can be clearly appreciated through the detailed descriptions concerning the preferred embodiments of the present invention in conjunction with the appended drawings.

(8) Refer first to FIGS. 2A-2B, wherein an exterior structural view and an interior partial structural view for a first embodiment of the power cord structure according to the present invention are respectively shown. Herein the power cord structure 4 is an alternative current (AC) power cord and includes a conductive cord body 41 and an insulation protective outer layer 42, and the conductive cord body 41 is manufactured with plural conductive cords 411, 412, 413 entangled at a twist distance satisfying security requirements (three conductive cords 411, 412, 413 are exemplarily used and twisted in the present embodiment).

(9) Also, the insulation protective outer layer 42 is made of opaque materials and includes an insulation cladding layer 421 and a spiral color correspondence layer 422, in which the insulation cladding layer 421 is wrapped around the outside of the conductive cord body 41, and the spiral color correspondence layer 422 has a first color segment 4221, a second color segment 4222 and a third color segment 4223, with each of the first color segment 4221, second color segment 4222 and third color segment 4223 having a difference color.

(10) It can be seen that the first color segment 4221, second color segment 4222 and third color segment 4223 display on the outer surface of the insulation cladding layer 421 with their color segments, and the interval widths between such three color segments are in a proportional ratio to the twist distance satisfying security requirements of the plural conductive cords 411, 412, 413 in the conductive cord body 41.

(11) As shown in FIG. 3, the interval width A displayed by the first color segment 4221, second color segment 4222 and third color segment 4223 is in a proportional ratio to the twist distance B satisfying security requirements of the plural conductive cords 411, 412, 413, such that, when a user sees the first color segment 4221, second color segment 4222 and third color segment 4223 on the surface, it is possible to reversely infer and appreciate whether the twist distance B meets security requirements base don the interval distance A, and the verification personnel also does not need to peel off the insulation protective outer layer 42 in order to confirm whether the internal twist distance meets security requirements.

(12) Moreover, as shown in FIG. 2A, the sequence for such first color segment 4221, second color segment 4222 and third color segment 4223 may be arranged as the first color segment 4221, second color segment 4222, first color segment 4221 and then third color segment 4223 and so forth; or alternatively, as shown in FIG. 4, the sequence may be arranged as the first color segment 4221, second color segment 4222 and then third color segment 4223, thus repeatedly displayed.

(13) Furthermore, in addition that the conductive cord body 41 having three conductive cords 411, 412, 413 is manufactured in a twisted form at a twist distance satisfying security requirements, it is possible to alternatively use simply two conductive cords 414, 415 to fabricate a twisted cord at a twist distance satisfying security requirements, in which at least three color segments are provided and able to display whether the twist distance of the two-conductive-cord body 41 satisfies security requirements, as shown in FIG. 5; while other features thereof are identical to those previously illustrated in FIGS. 1-4, they are herein omitted for brevity.

(14) In comparison with other conventional technologies, the power cord structure according to the present invention provides the following advantages: 1. The present invention configures the spiral color correspondence layer on the insulation cladding layer so the user needs only to look at the spiral color correspondence layer shown on the insulation cladding layer to know whether the twist distance of the conductive cord body in the power cord structure satisfies security requirements. 2. The present invention configures and displays the spiral color correspondence layer of different colors on the insulation cladding layer, and the interval widths of the at least three color segments are in a proportional ratio to the twist distance satisfying security requirements of the conductive cords in the conductive cord body, so it needs only to observe the color distribution shown on the surface to clearly understand the conductive cords in the conductive cord body are indeed manufactured in accordance with specifications featuring a twist distance satisfying security requirements. 3. The present invention allows to demonstrate the relative ratio value on the product packages such that the verification personnel can reversely infer whether the twist distance satisfies security requirements based on the interval widths, and also know the internal twist distance satisfying security requirements without having to peel off the insulation protective outer layer.

(15) It should be noticed that, although the present invention has been disclosed through the detailed descriptions of the aforementioned embodiments, such illustrations are by no means used to restrict the scope of the present invention; that is, skilled ones in relevant fields of the present invention can certainly devise any applicable alternations and modifications after having comprehended the aforementioned technical characteristics and embodiments of the present invention without departing from the spirit and scope thereof. Hence, the scope of the present invention to be protected under patent laws should be decordated in accordance with the claims set forth hereunder in the present specification.