Photovoltaic junction box with double-sided wiring structure

Abstract

The present invention relates to the technical field of photovoltaic junction boxes, and discloses a photovoltaic junction box with a double-sided wiring structure, including a junction box body, which can allow photovoltaic wires to be fitted and wound on the curved surfaces of a movable clamping plate and a fixed clamping plate in a rotational manner. Compared with the existing fixing method, the present solution effectively increases the friction between the photovoltaic wires and the movable clamping plate and the fixed clamping plate through winding, thereby making it less likely for the photovoltaic wires to fall off from the movable clamping plate and the fixed clamping plate. On the other hand, when the photovoltaic wires are being fitted and wound, the first extrusion strip will also complete the extrusion movement of the fastening plate, so that the fastening plate can complete the secondary fixing effect of the photovoltaic wires.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic junction boxes, in particular to a photovoltaic junction box with a double-sided wiring structure. Background Art

[0002] The photovoltaic junction box is a connection device that protects solar photovoltaic modules. It is a connection device between the solar cell array composed of solar cell modules and the solar charging control device. Its main function is to connect and protect solar photovoltaic modules, connect the power generated by solar cells to external lines, and conduct the current generated by photovoltaic modules.

[0003] In the prior art, the connection between the photovoltaic wire and the photovoltaic junction box is usually directly achieved by fixing bolts to achieve the electrical connection between the two. Although this connection method does not affect the electrical connection effect between the two, since most of the photovoltaic wire is exposed to the outside of the photovoltaic junction box, when the photovoltaic wire is subjected to external force, the photovoltaic wire is likely to be stretched too much due to the external force, resulting in the detachment between the photovoltaic wire and the photovoltaic junction box.

[0004] Therefore, the existing demand is not met, and we propose a photovoltaic junction box with a double-sided wiring structure. Summary of the invention

[0005] The present invention provides a photovoltaic junction box with a double-sided wiring structure, which, on the one hand, allows the photovoltaic wire to be fitted and wound on the curved surfaces of a movable clamp and a fixed clamp in a rotational manner. Compared with the existing fixing method, the present solution effectively increases the friction between the photovoltaic wire and the movable clamp and the fixed clamp by winding, thereby making it less likely for the photovoltaic wire to fall off from the movable clamp and the fixed clamp. On the other hand, when the photovoltaic wire is being fitted and wound, the first extrusion strip will also complete the extrusion movement of the fastening plate, thereby the fastening plate can complete the secondary fixing effect of the photovoltaic wire, thereby solving the problem mentioned in the above background technology that when the photovoltaic wire is subjected to external force, the photovoltaic wire is likely to be stretched too much due to the external force, thereby causing the photovoltaic wire to fall off from the photovoltaic junction box.

[0006] The present invention provides the following technical solution: a photovoltaic junction box with a double-sided wiring structure, comprising a junction box body, the junction box body consisting of a sealing cover and a box body, two sets of sealing covers are provided, and are fixed on both sides of the box body by bolts, and a storage cavity is provided on the top surface and the bottom surface of the box body, and the interior of each storage cavity is used to install a photovoltaic line;

[0007] A first clamping assembly and a second clamping assembly are arranged inside each storage cavity, and the first clamping assembly and the second clamping assembly are both used to squeeze and fix the photovoltaic wires.

[0008] As an optional solution for a photovoltaic junction box with a double-sided wiring structure described in the present invention, two junction blocks are also arranged inside each storage cavity, and the junction blocks are used to fix the front end line port of the photovoltaic line by fixing bolts, and a first clamping assembly is arranged on one side of each junction block, and the first clamping assembly is composed of a clamping base and a fastening block, the clamping base is fixedly arranged on the bottom surface of the storage cavity, and the fastening block is movably connected to the clamping base by connecting a torsion spring, and the first clamping assembly is used to squeeze and fix the upper end of the photovoltaic line.

[0009] As an optional solution for a photovoltaic junction box with a double-sided wiring structure described in the present invention, first movable grooves are symmetrically opened inside the storage cavity, two of the first movable grooves are respectively opened on the other side of the first clamping component, and each first movable groove is movably provided with a second clamping component.

[0010] As an optional solution for a photovoltaic junction box with a double-sided wiring structure described in the present invention, the second clamping assembly is composed of a rotating upper plate and a movable lower plate, the rotating upper plate and the movable lower plate are connected by a third connecting rod, and the upper end of the third connecting rod is fixedly connected to the rotating upper plate, while the lower end of the third connecting rod is movablely connected to the movable lower plate.

[0011] As an optional solution for a photovoltaic junction box with a double-sided wiring structure described in the present invention, the top surface of the rotating upper plate is also provided with a movable clamping plate and a fixed clamping plate, and the movable clamping plate is movably set in the second movable groove through a movable block integrally arranged at the bottom, and the second movable groove is opened inside the rotating upper plate, and at the same time, the bottom of the rotating upper plate is also fixedly connected with the upper end of the first connecting rod, and the lower end of the first connecting rod is movably set between a movable straight groove and a movable arc groove opened inside the movable lower plate, and the movable straight groove and the movable arc groove are connected.

[0012] As an optional solution for a photovoltaic junction box with a double-sided wiring structure described in the present invention, the rotating upper plate is also movably provided with a first extrusion strip and a fastening plate, and one end of the first extrusion strip is arranged on the arc surface of the rotating upper plate, and the other end of the first extrusion strip is movably arranged inside the rotating upper plate, and the other end of the first extrusion strip is provided with a third inclined surface, and at the same time, a side surface of the fastening plate away from the fixed clamping plate is also movably arranged inside the rotating upper plate through an integrally formed extrusion rod, and the extrusion rod is also provided with a fourth inclined surface.

[0013] As an optional solution for a photovoltaic junction box with a double-sided wiring structure described in the present invention, the surface of the third connecting rod is also respectively sleeved with a first adjusting gear and a take-up wheel, the first adjusting gear is matched with a first adjusting rack arranged inside the first movable groove for meshing, and the interior of the take-up wheel is fixedly connected with one end of the traction line, and the other end of the traction line is fixedly set on the take-up rod, and the take-up rod is set inside a second accommodating cavity opened inside the box body.

[0014] As an optional solution for a photovoltaic junction box with a double-sided wiring structure described in the present invention, a second adjusting gear and a second adjusting rack are also arranged inside the second accommodating cavity, and the second adjusting gear is sleeved on the surface of the take-up rod, and the second adjusting gear and the second adjusting rack are meshed with each other, and one end of the second adjusting rack is fixedly connected to the second extrusion strip.

[0015] As an optional solution for a photovoltaic junction box with a double-sided wiring structure described in the present invention, the top outer edge and the bottom outer edge of the box body are both provided with connecting holes, and the positions of the two sealing covers corresponding to the connecting holes are provided with connecting blocks, and the connecting blocks are provided with a first inclined surface and a second inclined surface.

[0016] As an optional solution for a photovoltaic junction box with a double-sided wiring structure described in the present invention, wherein: a fifth inclined surface is provided at the other end of the second extrusion strip, and the second extrusion strip is extruded and moved by matching the fifth inclined surface with the second inclined surface provided on the connecting block, and at the same time, the first inclined surface provided on the connecting block is extruded and moved by matching the sixth inclined surface provided at one end of the second connecting rod, and a fixed connection is formed between the other end of the second connecting rod and the push rod, and the push rod is used to push the first connecting rod to move.

[0017] The present invention has the following beneficial effects:

[0018] 1. The photovoltaic junction box with a double-sided wiring structure, on the one hand, allows the photovoltaic wire to be fitted and wound on the curved surfaces of the movable clamp and the fixed clamp in a rotating manner, and compared with the existing fixing method, this solution effectively increases the friction between the photovoltaic wire and the movable clamp and the fixed clamp by winding, thereby making it less likely for the photovoltaic wire to fall off from the movable clamp and the fixed clamp; on the other hand, when the photovoltaic wire is being fitted and wound, the first extrusion strip will also complete the extrusion movement of the fastening plate, so that the fastening plate can complete the secondary fixing effect of the photovoltaic wire.

[0019] 2. The photovoltaic junction box with a double-sided wiring structure allows the second clamping component to move, and the photovoltaic wires near one end of the first clamping component will be piled up to a certain extent. Through this movement, the photovoltaic wires are piled up to avoid the problem in the prior art that the photovoltaic wires are detached from the junction block due to excessive tensile force from external forces, thereby affecting the wire connection between the photovoltaic wires and the junction box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the enlarged structure of point A of the present invention.

[0022] Figure 3 It is a schematic diagram of the longitudinal section structure of a partial box body of the present invention.

[0023] Figure 4 It is a schematic diagram of the enlarged structure of point B of the present invention.

[0024] Figure 5 It is a schematic diagram of the transverse section structure of a partial box body of the present invention.

[0025] Figure 6 It is a schematic structural diagram of the second clamping assembly of the present invention.

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the local movable splint of the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the partially rotating upper plate of the present invention.

[0028] Fig. 9 It is a schematic structural diagram of the first clamping assembly of the present invention.

[0029] In the figure: 1. Junction box body;

[0030] 101, sealing cover; 102, box body; 103, storage cavity; 104, wiring block; 105, first clamping assembly; 106, first moving groove; 107, outlet hole; 108, second clamping assembly; 109, connecting plug block; 110, connecting plug hole; 111, first adjusting rack; 112, rotating upper plate; 113, moving lower plate; 114, moving clamping plate; 115, second moving groove; 116, first extrusion strip; 117, fastening plate; 118, Fixed splint; 119, first connecting rod; 120, second connecting rod; 121, first adjusting gear; 122, third connecting rod; 123, take-up wheel; 124, movable arc groove; 125, movable straight groove; 126, push rod; 127, second extrusion strip; 128, traction line; 129, second adjusting rack; 130, take-up rod; 131, second adjusting gear; 132, clamping base; 133, fastening block; 134, movable slide rod; 135, second accommodating chamber. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] See also Figure 1-Figure 5 A photovoltaic junction box with a double-sided wiring structure includes a junction box body 1, which is composed of a sealing cover 101 and a box body 102. The sealing cover 101 is provided with two groups and is fixed on both sides of the box body 102 by bolts. At the same time, the top surface and the bottom surface of the box body 102 are both provided with a storage cavity 103, and each storage cavity 103 is used to install a photovoltaic line;

[0034] A first clamping assembly 105 and a second clamping assembly 108 are disposed inside each storage cavity 103 , and the first clamping assembly 105 and the second clamping assembly 108 are both used to squeeze and fix the photovoltaic wires.

[0035] The top outer edge and the bottom outer edge of the box body 102 are both provided with connection holes 110 , and the two sealing covers 101 are provided with connection plugs 109 at positions corresponding to the connection holes 110 , and the connection plugs 109 are provided with a first inclined surface and a second inclined surface.

[0036] A fifth inclined surface is provided at the other end of the second extrusion strip 127, and the second extrusion strip 127 is extruded and moved by matching the fifth inclined surface with the second inclined surface provided on the connecting block 109. At the same time, the first inclined surface provided on the connecting block 109 is extruded and moved by matching the sixth inclined surface provided at one end of the second connecting rod 120, and a fixed connection is formed between the other end of the second connecting rod 120 and the push rod 126, and the push rod 126 is used to push the first connecting rod 119 to move.

[0037] In this embodiment: when the user needs to connect the photovoltaic line, firstly, the photovoltaic line needs to be inserted into the storage cavity 103 through the outlet hole 107, and then the photovoltaic line needs to be inserted into the second clamping component 108 and the first clamping component 105 in sequence until the front end of the photovoltaic line is inserted into the wiring block 104, and the wiring block 104 can realize the electrical connection between the photovoltaic line and the junction box body 1 through the corresponding fixing bolts. With the completion of the electrical connection, the user can now connect the two sealing covers 101 and the box body 102 together;

[0038] Since the connection holes 110 are provided at the outer edges of the top and bottom of the box body 102, and the connection plug blocks 109 are also provided at the positions of each box body 102 corresponding to the connection holes 110, after the sealing cover 101 is connected by the corresponding fixing bolts, the connection plug blocks 109 will also be inserted into the corresponding connection holes 110. Since the connection plug blocks 109 are respectively provided with the first inclined surface and the second inclined surface, the second connecting rod 120 and the second extrusion strip 127 movably provided inside the connection hole 110 will move to a certain extent under the extrusion of the first inclined surface and the second inclined surface of the connection plug block 109 as the connection plug block 109 is inserted;

[0039] It should be noted that the second inclined plane is arranged above the first inclined plane, and through this arrangement, the first inclined plane can first contact the fifth inclined plane arranged on the second connecting rod 120, and connecting springs are arranged on the second connecting rod 120 and the second extrusion strip 127. This arrangement also ensures that when the connecting block 109 releases the extrusion on the second connecting rod 120 and the second extrusion strip 127, the second connecting rod 120 and the second extrusion strip 127 can be reset.

[0040] Embodiment 2

[0041] This embodiment is an improvement made on the basis of the first embodiment. Figure 1 , Figure 2 as well as Figure 6 As shown, first movable grooves 106 are symmetrically opened inside the storage cavity 103 , and two first movable grooves 106 are respectively opened on the other side of the first clamping component 105 , and each first movable groove 106 is movably provided with a second clamping component 108 .

[0042] The second clamping assembly 108 is composed of a rotating upper plate 112 and a movable lower plate 113, which are connected by a third connecting rod 122, and a fixed connection is formed between the upper end of the third connecting rod 122 and the rotating upper plate 112, while a movable connection is formed between the lower end of the third connecting rod 122 and the movable lower plate 113.

[0043] The top surface of the rotating upper plate 112 is also provided with a movable clamping plate 114 and a fixed clamping plate 118. The movable clamping plate 114 is movably set in the second movable groove 115 through a movable block integrally arranged at the bottom, and the second movable groove 115 is opened inside the rotating upper plate 112. At the same time, the bottom of the rotating upper plate 112 is also fixedly connected with the upper end of the first connecting rod 119, and the lower end of the first connecting rod 119 is movably set between the movable straight groove 125 and the movable arc groove 124 opened inside the movable lower plate 113, and the movable straight groove 125 and the movable arc groove 124 are connected.

[0044] The surface of the third connecting rod 122 is also respectively sleeved with the first adjusting gear 121 and the take-up wheel 123, the first adjusting gear 121 is matched with the first adjusting rack 111 arranged inside the first movable groove 106 for meshing, and the interior of the take-up wheel 123 is fixedly connected with one end of the traction line 128, and the other end of the traction line 128 is fixedly set on the take-up rod 130, and the take-up rod 130 is set inside the second accommodating cavity 135 opened inside the box body 102.

[0045] A second adjusting gear 131 and a second adjusting rack 129 are also provided inside the second accommodating cavity 135, and the second adjusting gear 131 is sleeved on the surface of the take-up rod 130, and the second adjusting gear 131 and the second adjusting rack 129 are meshed with each other, and one end of the second adjusting rack 129 is fixedly connected to the second extrusion bar 127.

[0046] In this embodiment: when the second connecting rod 120 moves, since the other end of the second connecting rod 120 is fixedly connected to the push rod 126, when the second connecting rod 120 moves, the push rod 126 will gradually contact the first connecting rod 119, and since the lower end of the first connecting rod 119 is movably arranged inside the movable straight groove 125, and the upper end of the first connecting rod 119 is fixedly connected to the bottom surface of the movable clamping plate 114, as the push rod 126 is in contact and squeezed with the first connecting rod 119, the movable clamping plate 114 will move toward the direction close to the fixed clamping plate 118. Since the photovoltaic line is arranged between the movable clamping plate 114 and the fixed clamping plate 118, this arrangement can allow the photovoltaic line to complete a preliminary squeezing and fixing effect under the movement of the movable clamping plate 114.

[0047] When the second extrusion bar 127 moves, since the other end of the second extrusion bar 127 is fixedly connected to the second adjustment rack 129, the second adjustment rack 129 will also move accordingly with the movement of the second extrusion bar 127. Since the second adjustment rack 129 is also meshed with the second adjustment gear 131, and the second adjustment gear 131 is fixedly sleeved on the surface of the take-up rod 130, this arrangement allows the take-up rod 130 to rotate to a certain extent. Since one end of the traction line 128 is wound around the take-up rod 130, the traction line 128 will gradually be tightened and wound around the take-up rod 130 as the take-up rod 130 rotates.

[0048] Since the other end of the traction line 128 is fixedly set on the take-up wheel 123 fixedly sleeved on the surface of the third connecting rod 122, and the movable lower plate 113 is movably set inside the first movable groove 106 through the movable slide rods 134 at both ends, and this arrangement can allow the second clamping assembly 108 to move to a certain extent inside the first movable groove 106 under the tightening and winding of the traction line 128. Since the first adjusting gear 121 is also fixedly sleeved on the third connecting rod 122, and the first adjusting gear 121 is meshed with the first adjusting rack 111 set in the first movable groove 106, this makes it possible for the rotating upper plate 112 and the third connecting rod 122 to rotate to a certain extent on the movable lower plate 113 as the second clamping assembly 108 moves;

[0049] When the third connecting rod 122 rotates, the traction line 128 wound on the take-up wheel 123 will also be tightened and wound to a certain extent under the action of the rotation. Since the tightening and winding of the traction line 128 on the take-up wheel 123 and the tightening and winding on the take-up rod 130 are carried out synchronously, when the traction line 128 is tightened by a certain length of the traction line 128, the second clamping assembly 108 will first move the tightening length of the traction line 128, and when the second clamping assembly 108 moves, the third connecting rod 122 will rotate, and the take-up wheel 123 will also tighten the traction line 128 is tightened by a corresponding length, and when the take-up wheel 123 is tightened, the second clamping assembly 108 will move again by the tightening length of the take-up wheel 123, and when the second clamping assembly 108 is moving, the take-up wheel 123 will tighten the traction line 128 again, and so on. Through the above arrangement, the moving distance of the second clamping assembly 108 will be greater than the length of the take-up rod 130 tightening the traction line 128, so the take-up rod 130 only needs to tighten the traction line 128 by a shorter length to meet the movement effect of the second clamping assembly 108;

[0050] It should be noted that the rotational movement angle of the second clamping assembly 108 will not exceed one hundred and eighty degrees;

[0051] It should be noted that, since the movable lower plate 113 is provided with a movable straight groove 125 and a movable arc groove 124, and the movable straight groove 125 and the movable arc groove 124 are connected, when the rotating upper plate 112 and the third connecting rod 122 rotate, the first connecting rod 119 can also perform a synchronous rotation effect inside the movable arc groove 124, so as to avoid the first connecting rod 119 from getting stuck, resulting in the rotating upper plate 112 being unable to rotate;

[0052] It should be noted that a connecting spring is also fixedly arranged on the surface of the movable lower plate 113, and the other end of the connecting spring is fixedly connected to the inner wall of the first movable groove 106, and this arrangement can ensure that when the movable lower plate 113 is reset, the elastic force of the connecting spring can be effectively realized;

[0053] When the second clamping component 108 moves, the photovoltaic wires near one end of the first clamping component 105 will be piled up to a certain extent. Through this movement, the photovoltaic wires are piled up to avoid the situation in the prior art where the photovoltaic wires are pulled apart from the wiring block 104 due to excessive external tensile force, thereby affecting the wire connection between the photovoltaic wires and the wiring box body 1.

[0054] Embodiment 3

[0055] This embodiment is an improvement made on the basis of the first embodiment. Figure 6-Figure 8 As shown, the rotating upper plate 112 is also movably provided with a first extrusion strip 116 and a fastening plate 117, and one end of the first extrusion strip 116 is arranged on the arc surface of the rotating upper plate 112, and the other end of the first extrusion strip 116 is movably arranged inside the rotating upper plate 112, and the other end of the first extrusion strip 116 is provided with a third inclined surface, and at the same time, a side surface of the fastening plate 117 away from the fixed clamping plate 118 is also movably arranged inside the rotating upper plate 112 through an integrally formed extrusion rod, and the extrusion rod is also provided with a fourth inclined surface.

[0056] In this embodiment: when the rotating upper plate 112 rotates, since the photovoltaic line is arranged between the movable clamping plate 114 and the fixed clamping plate 118, as the rotating upper plate 112 rotates, part of the photovoltaic line will be fitted and wound on the curved surface of the movable clamping plate 114 and the fixed clamping plate 118, and since the first extrusion strip 116 is movably arranged on the curved surface of the movable clamping plate 114, this arrangement allows part of the photovoltaic line to be squeezed on the first extrusion strip 116 when it is fitted and wound, and when the first extrusion strip 116 is squeezed, the first extrusion strip 116 will move to a certain extent inside the movable clamping plate 114, and since the first extrusion strip 116 is moved on the other side of the movable clamping plate 114, the first extrusion strip 116 is moved on the movable clamping plate 114. A third inclined surface is provided at the end, and a fastening plate 117 and an extrusion rod integrally formed with the fastening plate 117 are movably provided inside the movable clamping plate 114, and a fifth inclined surface is also provided at one end of the extrusion rod close to the first extrusion strip 116, so that when the first extrusion strip 116 contacts the extrusion rod, the third inclined surface will squeeze the fourth inclined surface, thereby driving the extrusion rod and the fastening plate 117 to move to a certain extent. Since the fastening plate 117 is arranged between the movable clamping plate 114 and the fixed clamping plate 118, after the fastening plate 117 moves, the fastening plate 117 will perform a secondary extrusion and fixing effect on the photovoltaic line arranged between the movable clamping plate 114 and the fixed clamping plate 118;

[0057] It should be noted that the first extrusion strip 116 and the extrusion rod are also provided with connecting springs, and this arrangement can also effectively allow the first extrusion strip 116 and the fastening plate 117 to be reset when the photovoltaic line releases the extrusion of the first extrusion strip 116;

[0058] It should be noted that a connecting spring is also provided inside the second moving groove 115, and a fixed connection is formed between the connecting spring and the moving slider integrally provided at the lower end of the moving clamping plate 114. By means of such a setting, it can be ensured that when the moving clamping plate 114 is reset, the elastic force of the connecting spring can be effectively realized;

[0059] Through the above-mentioned arrangement, on the one hand, the photovoltaic wire can be fitted and wound on the curved surface of the movable clamp 114 and the fixed clamp 118 in a rotational manner, and compared with the existing fixing method, the present solution effectively increases the friction between the photovoltaic wire and the movable clamp 114 and the fixed clamp 118 through winding, thereby making it less likely for the photovoltaic wire to fall off from the movable clamp 114 and the fixed clamp 118; on the other hand, when the photovoltaic wire is being fitted and wound, the first extrusion strip 116 will also complete the extrusion movement of the fastening plate 117, so that the fastening plate 117 can complete the secondary fixing effect of the photovoltaic wire.

[0060] Embodiment 4

[0061] This embodiment is an improvement made on the basis of the first embodiment. Figure 1 and Fig. 9 As shown, two terminal blocks 104 are further provided inside each storage cavity 103. The terminal blocks 104 fix the front end line port of the photovoltaic line by fixing bolts, and a first clamping assembly 105 is provided on one side of each terminal block 104. The first clamping assembly 105 is composed of a clamping base 132 and a fastening block 133. The clamping base 132 is fixedly arranged on the bottom surface of the storage cavity 103, and the fastening block 133 forms a movable connection with the clamping base 132 by connecting a torsion spring. The first clamping assembly 105 is used to squeeze and fix the upper end of the photovoltaic line.

[0062] In this embodiment: through the setting of the first clamping component 105, the front end of the photovoltaic line can achieve the corresponding fixed clamping effect through the compression and squeezing of the fastening block 133, and the squeezing and clamping of the first clamping component 105 can further improve the installation stability of the photovoltaic line.

[0063] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A photovoltaic junction box with a double-sided wiring structure, comprising a junction box body (1), Features: The junction box body (1) is composed of a sealing cover (101) and a box body (102); two sets of the sealing covers (101) are provided and are fixed on two sides of the box body (102) by bolts; and a storage cavity (103) is provided on the top surface and the bottom surface of the box body (102); the interior of each storage cavity (103) is used for installing a photovoltaic line; A first clamping assembly (105) and a second clamping assembly (108) are arranged inside each of the storage cavities (103), and the first clamping assembly (105) and the second clamping assembly (108) are both used to squeeze and fix the photovoltaic wires; Two wiring blocks (104) are also arranged inside each storage cavity (103), and the wiring blocks (104) are used to fix the front end of the photovoltaic line by fixing bolts, and a first clamping assembly (105) is arranged on one side of each wiring block (104), and the first clamping assembly (105) is composed of a clamping base (132) and a fastening block (133), the clamping base (132) is fixedly arranged on the bottom surface of the storage cavity (103), and the fastening block (133) is movably connected to the clamping base (132) by connecting a torsion spring, and the first clamping assembly (105) is used to squeeze and fix the upper end of the photovoltaic line; The storage cavity (103) is further provided with first movable grooves (106) symmetrically therein, and two first movable grooves (106) are respectively provided on the other side of the first clamping assembly (105), and each first movable groove (106) is movably provided with a second clamping assembly (108); The second clamping assembly (108) is composed of a rotating upper plate (112) and a movable lower plate (113); the rotating upper plate (112) and the movable lower plate (113) are connected via a third connecting rod (122); an upper end of the third connecting rod (122) is fixedly connected to the rotating upper plate (112), while a lower end of the third connecting rod (122) is movably connected to the movable lower plate (113); The top surface of the rotating upper plate (112) is also provided with a movable clamping plate (114) and a fixed clamping plate (118); the movable clamping plate (114) is movably arranged in a second movable groove (115) through a movable block integrally arranged at the bottom, and the second movable groove (115) is opened inside the rotating upper plate (112); at the same time, the bottom of the rotating upper plate (112) is also fixedly connected to the upper end of the first connecting rod (119), and the lower end of the first connecting rod (119) is movably arranged between a movable straight groove (125) and a movable arc groove (124) opened inside the movable lower plate (113), and the movable straight groove (125) and the movable arc groove (124) are connected; The rotating upper plate (112) is also movably provided with a first extrusion strip (116) and a fastening plate (117), one end of the first extrusion strip (116) is provided on the arc surface of the rotating upper plate (112), the other end of the first extrusion strip (116) is movably provided inside the rotating upper plate (112), and the other end of the first extrusion strip (116) is provided with a third inclined surface, and at the same time, a side surface of the fastening plate (117) away from the fixed clamping plate (118) is also movably provided inside the rotating upper plate (112) via an integrally formed extrusion rod, and the extrusion rod is also provided with a fourth inclined surface.

2. A photovoltaic junction box with a double-sided wiring structure according to claim 1, Features: The surface of the third connecting rod (122) is also respectively sleeved with a first adjusting gear (121) and a take-up wheel (123); the first adjusting gear (121) is matched with a first adjusting rack (111) arranged inside the first movable groove (106) for meshing, and the inside of the take-up wheel (123) is fixedly connected to one end of the traction line (128), and the other end of the traction line (128) is fixedly set on the take-up rod (130), and the take-up rod (130) is set inside a second accommodating cavity (135) opened inside the box body (102).

3. A photovoltaic junction box with a double-sided wiring structure according to claim 2, Features: A second adjusting gear (131) and a second adjusting rack (129) are also provided inside the second accommodating cavity (135), and the second adjusting gear (131) is sleeved on the surface of the take-up rod (130), and the second adjusting gear (131) and the second adjusting rack (129) are meshed with each other, and one end of the second adjusting rack (129) is fixedly connected to the second extrusion strip (127).

4. A photovoltaic junction box with a double-sided wiring structure according to claim 1, Features: The top outer edge and the bottom outer edge of the box body (102) are both provided with connection holes (110), and the two sealing covers (101) are provided with connection plug blocks (109) at positions corresponding to the connection plug holes (110), and the connection plug blocks (109) are provided with a first inclined surface and a second inclined surface.

5. A photovoltaic junction box with a double-sided wiring structure according to claim 3, Features: The other end of the second extrusion strip (127) is provided with a fifth inclined surface, and the second extrusion strip (127) is extruded and moved by matching the fifth inclined surface with the second inclined surface provided on the connecting plug block (109), and at the same time, the first inclined surface provided on the connecting plug block (109) is extruded and moved by matching the sixth inclined surface provided on one end of the second connecting rod (120), and a fixed connection is formed between the other end of the second connecting rod (120) and the push rod (126), and the push rod (126) is used to push the first connecting rod (119) to move.

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