A photovoltaic box with a compact structure

Abstract

The present invention discloses a photovoltaic box with a compact structure, comprising: a box body and a central tube body, wherein the corner of the box body is provided with a first support part, the middle of the inner wall of the box body is provided with a second support part, the two ends of the central tube body are respectively connected with conductive plates formed by rolling pin round bars, the cable end is connected with the conductive plate, the conductive plate comprises a welding hole arranged along the longitudinal direction of the box body and a first heat dissipation hole arranged in parallel with the welding hole and a second heat dissipation hole arranged perpendicular to the first heat dissipation hole, and a circular mounting hole is provided on the outer side of the second heat dissipation hole; a limit block is provided on the upper cover body, and a vent hole is provided inside the limit block; the first support part comprises an L-shaped frame body and a first support seat, and a pair of L-shaped frames located at the same end form a clamping channel for facilitating the passage of cables. The present invention uses a pair of L-shaped frames located at the same end to form a clamping channel for facilitating the passage of cables, which occupies less space, and the L-shaped frame plays a supporting and limiting role at the same time, so the limiting effect is better and the structure is more compact.

Description

Technical Field

[0001] The invention relates to the field of photovoltaic boxes with compact structures, and in particular to a photovoltaic box with compact structures. Background Art

[0002] At present, solar photovoltaic modules are devices that convert solar energy into electrical energy. In the production process of photovoltaic modules, junction boxes play an important role in the effective output of photovoltaic power. Their main function is to output the current generated by the photovoltaic modules and protect the solar photovoltaic modules. The current generated by each solar panel is relatively small, and a photovoltaic junction box is needed to electrically connect multiple solar panels together so that the current generated by multiple solar panels can be gathered together to output a photovoltaic system with a certain power generation capacity. The common photovoltaic box welding parts have relatively thin wiring, the welding parts are relatively concentrated, and the heat dissipation effect is poor. And it is necessary to independently configure the limit structure and support structure to limit and fix the cables respectively. Summary of the invention

[0003] In view of the above problems, the present invention proposes a photovoltaic box with a compact structure, which solves the defects of the existing photovoltaic box, such as thin wires at welding points, concentrated welding points, poor heat dissipation effect, and the need to independently configure a limiting structure and a supporting structure to limit and fix the cables respectively.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A photovoltaic box with a compact structure comprises: a box body and a central tube body, wherein a first support portion is provided at a corner of the box body, a second support portion is provided at the middle of the inner wall of the box body, the central tube body comprises a chip, and conductive plates formed by rolling a lead round bar are respectively connected to both ends of the central tube body, and a cable end is connected to the conductive plate, the conductive plate comprises welding holes arranged along the longitudinal direction of the box body, first heat dissipation holes arranged in parallel with the welding holes, and second heat dissipation holes arranged perpendicular to the first heat dissipation holes, and circular mounting holes are provided on the outer sides of the second heat dissipation holes; an upper cover body is provided on the box body, a limit block is provided on the upper cover body, and an air vent is provided inside the limit block; the first support portion comprises an L-shaped frame body and a first support seat, and a pair of L-shaped frames located at the same end form a clamping channel for facilitating the passage of cables. The present invention directly uses a diode pin round bar to roll into a conductive plate to replace the conductor, and the connection at the welding point is relatively thick, and the heat dissipation effect is better. A pair of L-shaped frames located at the same end are used to form a clamping channel for the cable to pass through, which occupies less space. The L-shaped frame plays a supporting and limiting role at the same time, has a better limiting effect, and its structure is more compact.

[0006] Optionally, the second supporting portion includes a plurality of vertical pieces and a second supporting seat arranged in parallel; and outer end walls of the first supporting seat and the second supporting seat are in the same plane.

[0007] Optionally, an arc-shaped protruding structure is provided on the outer side of the limit block, and the arc-shaped protruding structure includes a base and a protruding fan-shaped deformable block. The front end of the arc-shaped protruding block is provided with a first through hole connected to the air hole, and the side of the fan-shaped deformable block is provided with a second through hole. The fan-shaped deformable block includes a first deformation portion close to the base and a second deformation portion away from the base.

[0008] Optionally, the elastic coefficient of the first deformation portion is smaller than the elastic coefficient of the second deformation portion.

[0009] Optionally, a limiting hole matched with the limiting block is provided on the side wall of the box body, the limiting hole passes through the box body, a protective plate is hinged on the limiting hole, and the side of the protective plate close to the upper cover body is hinged to the side wall of the limiting hole.

[0010] Optionally, a plurality of ventilation grooves are provided at the lower portion of the protective plate.

[0011] Optionally, a lower cover is provided under the box body.

[0012] Optionally, a rotating shaft is installed on the side wall of the limiting hole, a rotating hole is provided on the protective plate, the rotating shaft passes through the rotating hole, a torsion spring is installed on one side of the rotating shaft, and the torsion spring is used to drive the protective plate to deflect inward.

[0013] Optionally, an upper limit piece and a lower limit block are provided in the limit hole, the upper limit piece and the lower limit block form a limit channel allowing the deformed part to squeeze in, and the upper limit piece and the lower limit block are provided with curved surfaces that match the fan-shaped deformation block.

[0014] Beneficial Effects

[0015] 1. The present invention directly uses a diode pin round bar to roll into a conductive plate to replace the conductor, and the connection at the welding point is relatively thick, and the heat dissipation effect is better; a pair of L-shaped frames located at the same end are used to form a clamping channel for the cable to pass through, which occupies less space. The L-shaped frame plays a supporting and limiting role at the same time, has a better limiting effect, and its structure is more compact.

[0016] 2. When the upper cover plate in the present invention is installed, its limit block is inserted downward into the box body and pushes open the protective plate. Its first deformation part and the second deformation part are both pushed out after deformation, and two deformation processes are provided. The second deformation part has a large elastic coefficient, which is convenient for the operator to squeeze and deform with his fingers, and the first deformation part provides elastic force for snapping into the air hole, and the first perforation and the first perforation and the air hole play a role in heat dissipation and ventilation, and the protective plate prevents dust or sewage from entering the limit hole.

[0017] 3. In the present invention, since the elastic coefficient of the second deformation part is larger, it is easy to deform. The elastic part is squeezed so that the magnetic ring contacts and absorbs the steel ball in turn. The contact area with the operator's fingers is larger, and the deformation is the overall horizontal inward contraction. With the two-section first deformation part and the second deformation part, the extrusion operation is smoother and has no sticky feeling, instead of making the bottom of the second deformation part deform more due to the lever effect and the top deform less, which makes the hand feel sticky when squeezed. The air permeable groove plays a role of ventilation. It is located at the bottom end of the protective plate to prevent sewage from flowing into the limiting hole. The protective plate is provided with an air permeable groove and a magnetic ring, which also increases the friction. The upper limit piece and the lower limit block form a limiting channel that allows the deformation part to squeeze in, which further guides the deformation of the first deformation part and the second deformation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural diagram of a compact photovoltaic box according to embodiment 1 of the present invention;

[0019] Figure 2 The compact photovoltaic box of embodiment 2 of the present invention Figure 1 The three-dimensional structure diagram of

[0020] Figure 3 This is a diagram of the limiting block structure of the compact photovoltaic box of Example 1 of the present invention;

[0021] Figure 4 It is a cross-sectional view of the limiting block of the photovoltaic box with a compact structure according to Example 3 of the present invention.

[0022] The reference numerals in the figure are: 1, box body, 2, central tube body, 3, first support part, 4, second support part, 5, cable end, 6, conductive plate, 7, welding hole, 8, first heat dissipation hole, 9, second heat dissipation hole, 10, mounting hole, 11, limit channel, 12, L-shaped frame, 13, first support seat, 14, clamping channel, 15, vertical piece, 16, second support seat, 17, upper cover body, 18, lower cover body, 19, limit block, 20. Air vent, 21. Arc-shaped protruding structure, 22. Base, 23. Fan-shaped deformation block, 25. Second through hole, 26. First deformation part, 27. Second deformation part, 28. Limit hole, 29. Protective plate, 30. Rotating shaft, 31. Rotating hole, 32. Air vent, 33. Magnetic ring, 34. Steel ball, 35. Hard part, 36. Elastic part, 37. Upper limit part, 38. Lower limit block, 39. Torsion spring. DETAILED DESCRIPTION

[0023] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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 cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example 1

[0026] The technical solution adopted by the present invention is as follows:

[0027] like Figure 1 As shown, the present invention discloses a photovoltaic box with a compact structure, comprising: a box body 1 and a central tube body 2, wherein a first support portion 3 is provided at a corner of the box body, a second support portion 4 is provided at the middle of the inner wall of the box body, the central tube body comprises a chip, and pins are provided at both ends of the central tube body. The two ends of the central tube body are respectively connected to a conductive plate 6 formed by rolling a pin round bar, and a cable end 5 is connected to the conductive plate. The conductive plate comprises a welding hole 7 arranged along the longitudinal direction of the box body, a first heat dissipation hole 8 arranged in parallel with the welding hole, and a second heat dissipation hole 9 arranged perpendicular to the first heat dissipation hole, and a circular mounting hole 10 is provided on the outside of the second heat dissipation hole. The first support portion comprises an L-shaped frame 12 and a first support seat 13, and a pair of L-shaped frames located at the same end form a clamping channel 14 for facilitating the passage of cables. The second support portion comprises a plurality of vertical pieces 15 and a second support seat 16 arranged in parallel; the outer end walls of the first support seat and the second support seat are on the same plane, and an upper cover 17 is provided on the box body.

[0028] When this embodiment is implemented, the outer end walls of the first support seat and the second support seat are on the same plane, which makes the conductive plate more stable. The diode pin round bar is directly rolled into a conductive plate to replace the conductor, and the connection at the welding point is relatively thick, and the heat dissipation effect is better; a pair of L-shaped frames located at the same end are used to form a clamping channel for the cable to pass through, which occupies less space. The L-shaped frame plays a supporting and limiting role at the same time, with a better limiting effect and a more compact structure.

[0029] Example 2

[0030] like Figure 2 and Figure 3 As shown, the difference between Example 2 and Example 1 is that a lower cover 18 is provided under the box body. A limit block 19 is provided on the upper cover body, and a vent hole 20 is provided inside the limit block. An arc-shaped protruding structure 21 is provided on the outer side of the limit block, and the arc-shaped protruding structure includes a hard base 22 and a protruding fan-shaped deformed block 23. A first through hole connected to the vent hole is provided at the front end of the arc-shaped protruding block, and a second through hole 25 is provided on the side of the fan-shaped deformed block. Both the first through hole and the second through hole are part of the vent hole.

[0031] The fan-shaped deformation block includes a first deformation portion 26 close to the base and a second deformation portion 27 away from the base. The elastic coefficient of the first deformation portion is smaller than the elastic coefficient of the second deformation portion. It should be noted that the second perforation of the present application is partially formed by the first deformation portion and the second deformation portion.

[0032] The side wall of the box body is provided with a limiting hole 28 adapted to the limiting block, the limiting hole passes through the box body, a protective plate 29 is hinged on the limiting hole, and the side of the protective plate close to the upper cover body is hinged to the side wall of the limiting hole. A rotating shaft 30 is installed on the side wall of the limiting hole, a rotating hole 31 is provided on the protective plate, the rotating shaft passes through the rotating hole, and a torsion spring 39 is installed on one side of the rotating shaft, and the torsion spring is used to drive the protective plate to deflect inward.

[0033] During implementation of this embodiment, when the upper cover is installed, its limit block is inserted downward into the box body and pushes open the protective plate. Its first deformation part and the second deformation part are both pushed out after deformation, and two deformation processes are provided. The second deformation part has a large elastic coefficient, which is convenient for the operator to squeeze and deform with his fingers, and the first deformation part provides elastic force for snapping into the air hole, and the first perforation and the first perforation and the air hole play a role in heat dissipation and ventilation, and the protective plate prevents dust or sewage from entering the limit hole.

[0034] Example 3

[0035] like Figure 4 As shown, the difference between Example 3 and Example 2 is that the lower part of the protective plate is provided with a plurality of air-permeable grooves 32, the inner side wall of the air-permeable groove is provided with a magnetic ring 33, the second deformation part is provided with a plurality of steel balls 34, the protective plate includes a hard part 35 close to the upper cover body and an elastic part 36 away from the upper cover body, and the elastic part is squeezed so that the magnetic ring contacts the steel balls in turn. An upper limit member 37 and a lower limit block 38 are provided in the limit hole, and the upper limit member and the lower limit block form a limit channel 11 that allows the deformation part to squeeze in, and the upper limit member and the lower limit member are provided with a curved surface that matches the fan-shaped deformation block.

[0036] When this embodiment is implemented, since the elastic coefficient of the second deformation part is larger, it is easy to deform. The elastic part is squeezed so that the magnetic ring contacts and absorbs the steel ball in turn. The contact area with the operator's fingers is larger, and when deformed, it shrinks inward horizontally as a whole. With the two-section first deformation part and the second deformation part, the extrusion operation is smoother and has no sticky feeling, instead of making the bottom of the second deformation part deform more due to the lever effect and the top deform less, which makes the hand feel sticky when squeezed. The air permeable groove plays a role of ventilation. It is located at the bottom end of the protective plate to prevent sewage from flowing into the limiting hole. The protective plate is provided with an air permeable groove and a magnetic ring, which also increases the friction. The upper limit piece and the lower limit block form a limiting channel that allows the deformed part to squeeze in, which further guides the deformation of the first deformation part and the second deformation part.

[0037] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention and the drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the present invention.

Claims

1. A photovoltaic box with a compact structure, characterized in that: include: A box body and a central tube body, a first support portion is provided at a corner of the box body, a second support portion is provided at the middle of the inner wall of the box body, the central tube body includes a chip, and both ends of the central tube body are respectively connected to conductive plates formed by rolling a lead round bar, and the cable end is connected to the conductive plate, the conductive plate includes welding holes arranged along the longitudinal direction of the box body and first heat dissipation holes arranged in parallel with the welding holes and second heat dissipation holes arranged perpendicular to the first heat dissipation holes, and a circular mounting hole is provided on the outer side of the second heat dissipation hole; an upper cover body is provided on the box body, and a limit block is provided on the upper cover body, and the limit block The block is provided with an air hole inside; the first support part includes an L-shaped frame and a first support seat, and a pair of L-shaped frames located at the same end form a clamping channel for the cable to pass through; an arc-shaped protruding structure is provided on the outside of the limit block, and the arc-shaped protruding structure includes a base and a protruding fan-shaped deformed block, and a first through hole connected to the air hole is provided at the front end of the arc-shaped protruding structure, and a second through hole is provided on the side of the fan-shaped deformed block, and the first through hole and the second through hole are both part of the air hole; the fan-shaped deformed block includes a first deforming part close to the base and a second deforming part away from the base; A limiting hole matched with the limiting block is provided on the side wall of the box body, the limiting hole passes through the box body, a protective plate is hinged on the limiting hole, and the side of the protective plate close to the upper cover body is hinged to the side wall of the limiting hole; a plurality of ventilation grooves are provided at the lower part of the protective plate.

2. A compact photovoltaic box as claimed in claim 1, characterized in that: The second supporting portion includes a plurality of vertical pieces and a second supporting seat arranged in parallel; and the outer side end walls of the first supporting seat and the second supporting seat are located on the same plane.

3. A compact photovoltaic box as claimed in claim 1, characterized in that: The elastic coefficient of the first deformation portion is smaller than the elastic coefficient of the second deformation portion.

4. A compact photovoltaic box as claimed in claim 1 or 2, characterized in that: A lower cover body is arranged under the box body.

5. A compact photovoltaic box as claimed in claim 1 or 2, characterized in that: A rotating shaft is installed on the side wall of the limiting hole, a rotating hole is provided on the protective plate, the rotating shaft passes through the rotating hole, a torsion spring is installed on one side of the rotating shaft, and the torsion spring is used to drive the protective plate to deflect inward.

6. A compact photovoltaic box as claimed in claim 1 or 2, characterized in that: An upper limit piece and a lower limit block are arranged in the limit hole, and the upper limit piece and the lower limit block form a limit channel allowing the deformed part to squeeze in. The upper limit piece and the lower limit block are provided with curved surfaces that match the fan-shaped deformation block.

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