Photovoltaic cable laid on outdoor balcony

Abstract

The utility model discloses a photovoltaic cable laid on an outdoor balcony, which comprises an inner core, an insulating layer and a sheath which are gradually arranged from inside to outside. The cross section of the inner core is rectangular, the width of the inner core is larger than or equal to 5.0 mm, the thickness of the inner core is smaller than or equal to 0.8 mm, and the inner core is made of tinned soft copper materials; the photovoltaic cable further comprises metal wires embedded in the insulating layer and arranged on the left side and the right side of the inner core in parallel, the upper sides of the metal wires are higher than the upper side of the inner core, the lower sides of the metal wires are lower than the lower side of the inner core, and the thickness of the photovoltaic cable is smaller than or equal to 2mm. The utility model provides a photovoltaic cable laid on an outdoor balcony, which adopts a flat structure and can be laid in a gap between a window and a windowsill.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cables, in particular to a photovoltaic cable for outdoor balcony laying. Background Art

[0002] The existing household outdoor photovoltaic system includes a photovoltaic panel, a cable and an energy storage device. The photovoltaic panel is connected to the energy storage device through the cable. The photovoltaic panel is installed outside the balcony. After the photovoltaic panel generates electricity using solar energy, the current is transmitted to the energy storage device through the cable to store the electrical energy for later use. And more and more families' balconies are enclosed by windows. For example Figure 2 there is a slender gap 203 between the window 201 and the window sill 202. The actual cable has a cylindrical structure with a large outer diameter and cannot be laid in the gap, but can only be laid outside along the window sill, which affects the aesthetics. Summary of the Utility Model

[0003] In order to solve the defect that the existing cable cannot be laid in the gap between the window and the window sill, the utility model provides a photovoltaic cable for outdoor balcony laying, which adopts a flat structure and can be laid in the gap between the window and the window sill.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A photovoltaic cable for outdoor balcony laying includes an inner core, an insulating layer and a sheath, which are arranged gradually from the inside to the outside. The inner core has a rectangular cross-section, the width of the inner core is greater than or equal to 5.0 mm, the thickness of the inner core is less than or equal to 0.8 mm, and the inner core is made of tinned soft copper. The photovoltaic cable further includes metal wires embedded in the insulating layer and arranged parallel to the left and right sides of the inner core. The upper side of the metal wire is higher than the upper side of the inner core, the lower side of the metal wire is lower than the lower side of the inner core, and the thickness of the photovoltaic cable is less than or equal to 2 mm.

[0006] Through the above settings, first, the photovoltaic cable has a small thickness and is in a flat structure, which is convenient for embedding in the gap between the window and the window sill for laying; second, the cross-section of the inner core is greater than 3.9 square millimeters, and the electrical conductivity is good, meeting the standard requirements; third, after the metal wire is bent, it is convenient to bend the photovoltaic cable for laying; fourth, the metal wire protects the inner core and reduces the extrusion force on the inner core to prevent the inner core from breaking.

[0007] Further, rounded corners are provided on the four edges of the inner core along the circumferential direction.

[0008] Through the above settings, the concentrated discharge caused by the sharp edge of the inner core is reduced.

[0009] Further, the distance from the metal wire to the inner core is greater than or equal to 2 mm.

[0010] Through the above settings, the risk of leakage of the inner core is further reduced.

[0011] Furthermore, the materials of the insulating layer and the sheath are both non-irradiated cross-linked polyolefin.

[0012] Through the above settings, it has good weather resistance, ultraviolet resistance and high temperature resistance, improving the safety of the photovoltaic cable outdoors.

[0013] Furthermore, the tensile strength of the inner core is greater than or equal to 196 Mpa, and the elongation rate of the inner core is greater than or equal to 25%.

[0014] Through the above settings, the inner core is not easily broken, further improving the safety of the photovoltaic cable. Brief Description of the Drawings

[0015] Figure 1 It is a cross-sectional view of the photovoltaic cable of the embodiment.

[0016] Figure 2 It is a schematic diagram of an existing window. Detailed Description of the Invention

[0017] Next, through embodiments and in conjunction with the drawings, the technical solutions of the present invention will be further specifically described.

[0018] As Figure 1 shown, a photovoltaic cable for laying on an outdoor balcony includes an inner core 3, an insulating layer 4 and a sheath 5. The inner core 3, the insulating layer 4 and the sheath 5 are arranged gradually from the inside out; for the inner core 3, the cross-section of the inner core 3 is rectangular, the width W of the inner core 3 is greater than or equal to 5.0 mm, the thickness D1 of the inner core 3 is less than or equal to 0.8 mm, and the inner core 3 is made of tinned soft copper; the photovoltaic cable further includes metal wires embedded in the insulating layer 4 and arranged parallel to the left and right sides of the inner core 3. The upper side of the metal wire is higher than the upper side of the inner core 3, the lower side of the metal wire is lower than the lower side of the inner core 3, and the thickness D2 of the photovoltaic cable is less than or equal to 2 mm.

[0019] Through the above settings, first, the photovoltaic cable has a small thickness and is in a flat structure, which is convenient for embedding into the gap between the window and the window sill for laying; second, the cross-section of the inner core 3 is greater than 3.9 square millimeters, and the electrical conductivity is good, meeting the standard requirements; third, after the metal wire is bent, it is convenient to bend the photovoltaic cable for laying; fourth, the metal wire protects the inner core 3 and reduces the extrusion force on the inner core 3 to prevent the inner core 3 from breaking.

[0020] In this application, the inner core 3 is used to transmit current, the insulating layer 4 functions as insulation, and the sheath 5 functions as protection; the cross-section of the inner core 3 is rectangular, reducing the vertical thickness to facilitate embedding into the gap between the window sill and the window of an outdoor balcony, increasing the horizontal width to enhance the cross-sectional area and improve the current transmission performance; the cross-section of the metal wire is circular, and materials such as aluminum alloy and iron wire can be used. After the photovoltaic cable is embedded in the gap, the photovoltaic cable is squeezed by the window sill and the window. When the extrusion force is large, the metal wire can support the window sill and the window, reducing the extrusion force on the inner core 3 and preventing the inner core 3 from breaking.

[0021] As an implementation manner, rounded corners 6 are provided on the four edges of the inner core 3 along the circumferential direction.

[0022] Through the above setting, the concentrated discharge caused by the sharp edge of the inner core 3 is reduced.

[0023] As an implementation manner, the distance D3 from the metal wire to the inner core 3 is greater than or equal to 2 mm.

[0024] Through the above setting, the risk of leakage of the inner core 3 is further reduced.

[0025] As an implementation manner, the materials of the insulating layer 4 and the sheath 5 are both non-irradiated cross-linked polyolefin.

[0026] Through the above setting, it has good weather resistance, ultraviolet resistance and high temperature resistance, improving the safety of the photovoltaic cable outdoors.

[0027] As an implementation manner, the tensile strength of the inner core 3 is greater than or equal to 196 Mpa, and the elongation rate of the inner core 3 is greater than or equal to 25%.

[0028] Through the above setting, the inner core 3 is not easily broken, further improving the safety of the photovoltaic cable.

[0029] It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A photovoltaic cable for outdoor balcony laying, characterized in that, It includes a core, an insulating layer and a sheath, and the core, the insulating layer and the sheath are arranged gradually from inside to outside; the core, the cross-section of the core is rectangular, the width of the core is greater than or equal to 5.0 mm, the thickness of the core is less than or equal to 0.8 mm, and the core is made of tinned soft copper material; the photovoltaic cable further includes metal wires embedded in the insulating layer and arranged parallel to the left and right sides of the core, the upper side of the metal wire is higher than the upper side of the core, the lower side of the metal wire is lower than the lower side of the core, and the thickness of the photovoltaic cable is less than or equal to 2 mm.

2. The photovoltaic cable for outdoor balcony laying according to claim 1, wherein, Rounded corners are provided on the four edges of the core along the circumferential direction.

3. A photovoltaic cable for outdoor balcony laying according to claim 1, characterized in that, The distance from the metal wire to the core is greater than or equal to 2 mm.

4. The photovoltaic cable for outdoor balcony laying according to claim 1, wherein, The materials of the insulating layer and the sheath are both non-irradiated cross-linked polyolefin.

5. A photovoltaic cable for outdoor balcony laying according to claim 1, characterized in that, The tensile strength of the core is greater than or equal to 196 Mpa, and the elongation rate of the core is greater than or equal to 25%.

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