Split type photovoltaic junction box

Abstract

The utility model discloses a split type photovoltaic junction box, which belongs to the field of solar photovoltaic technology, and comprises a junction half box, two sides of the junction half box are movably connected with wiring terminals, the inner sides of the wiring terminals are fixedly connected with photovoltaic cables, the front side of the left photovoltaic cable is fixedly connected with an anode plug, and the front side of the right photovoltaic cable is fixedly connected with a cathode plug. The front side of the right photovoltaic cable is fixedly connected with a cathode slot, the inner side of the wiring half box is movably connected with a clamping mechanism, the inner side of the clamping mechanism is movably connected with a copper sheet, the inner side of the copper sheet is movably connected with a diode, and the inner side of the wiring half box is movably connected with an installation mechanism. According to the junction box, the situation that the photovoltaic cable is fixedly installed on the junction box and is tightly pressed by the copper sheet can be avoided, and the flexible copper plectrum at the multi-surface contact end of the copper sheet can be in contact with the wiring terminal in a larger area in the process of installing the photovoltaic cable while disassembly and assembly are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar photovoltaic technical field, especially relate to a split type photovoltaic junction box. BACKGROUND

[0002] The photovoltaic junction box is a connecting device arranged between the photovoltaic panel square array and the solar charging control device, and is used for outputting the power generated by the solar cell square array to the external circuit, in order to improve the power output to the external circuit, a plurality of photovoltaic panels are usually connected in series or parallel through the photovoltaic junction box, and the three-split photovoltaic junction box comprises a first junction box connected with the positive electrode, a second junction box connected with the negative electrode and an intermediate junction box located between the first junction box and the second junction box and connected with the first junction box and the second junction box through a bus bar.

[0003] In the prior art, the first connector is connected with the first junction box through a connecting line, and the second connector is connected with the second junction box through a connecting line, and when the first connector and the second connector are connected, they will naturally drop, if there is accumulated water under the photovoltaic panel, the first connector and the second connector are easy to be soaked in the accumulated water, causing a short circuit at the connection, and thus the two photovoltaic panels cannot be connected together.

[0004] In view of the above problems, the existing patent (publication number: CN218162389U) proposes a split type photovoltaic junction box, which comprises a first junction box provided with a first plug-in slot, a second junction box provided with a second plug-in slot, an intermediate junction box located between the first junction box and the second junction box, and a connecting piece comprising a first clamping head slidably inserted into the first plug-in slot and a second clamping head slidably inserted into the second plug-in slot, the first clamping head is provided with a clamping piece, and the second clamping head is provided with a clamping groove matched with the clamping piece, which has the effect of improving the stability of the two photovoltaic panels connected through the photovoltaic junction box.

[0005] In view of the above problems, the existing patent gives a solution, but the existing split type junction box photovoltaic cable is usually directly fixed on the two sides of the junction box, and the junction terminal of the photovoltaic cable in contact with the copper sheet inside the junction box is usually directly fixed and pressed to the copper sheet, on the one hand, the junction terminal is fixedly installed in the junction box, and when the junction box is scrapped, the effective photovoltaic cable cannot be recycled, and it is inconvenient to install and disassemble and can only be directly scrapped, on the other hand, the fixed pressing to the copper sheet can ensure that it will not loosen to cause poor contact, but during operation, it will cause uneven contact resistance, poor vibration resistance and high stress, and the conductive copper sheet inside the junction box is usually installed through a bolt, and the bolt is a metal material of other properties, which will affect the conductivity of the copper sheet to a certain extent and cause energy loss.

[0006] To this end, a split type photovoltaic junction box is provided. Utility model content

[0007] The utility model discloses a split type photovoltaic junction box can solve the problem that the existing photovoltaic cable terminal is directly fixed on the junction box and is directly fixed and pressed to death with copper sheet and copper sheet uses the bolt to install.

[0008] To achieve the above object, the utility model provides the following technical scheme: a split type photovoltaic junction box, including the junction half box, both sides of the junction half box are movably connected with the junction terminal, the inside fixed connection of the junction terminal has photovoltaic cable, the front side fixed connection of left photovoltaic cable has positive plug, the front side fixed connection of right photovoltaic cable has negative slot, the inside movably connected of the junction half box has clamping mechanism, the inside movably connected of clamping mechanism has copper sheet, the inside movably connected of copper sheet has diode, the inside movably connected of the junction half box has installation mechanism,

[0009] The installation mechanism includes the clamping jaw, the installation slot, the first compression spring, the half ring clamping block, the sealing ring, the sealing rubber block, the inclined clamping groove and the ductile copper blade, the bottom clamping jaw is fixedly connected at the bottom of the both sides of the bottom junction half box, the top clamping jaw is fixedly connected at the bottom of the both sides of the top junction half box, the junction terminal is movably connected at the bottom of the top clamping jaw, the junction terminal is fixedly connected at the top of the bottom clamping jaw, the installation slot is set up at the both sides of the inside of the bottom bottom junction half box, the junction terminal is movably connected at the inside of the installation slot, the first compression spring is fixedly connected at the inside of the top of the top junction half box, the half ring clamping block is fixedly connected at the bottom of the first compression spring, the half ring clamping block is set up at the inside of the installation slot, the half ring clamping block is movably connected at the outside of the junction terminal, the inclined clamping groove is set up at the both sides of the top of the copper sheet, the inclined clamping groove is set up at the right side of the left installation slot, the inclined clamping groove is set up at the left side of the right installation slot, the junction terminal is movably connected at the inside of the inclined clamping groove, the front side of the front side ductile copper blade is fixedly connected at the top of the copper sheet, the rear side of the rear side ductile copper blade is fixedly connected at the top of the copper sheet, the front side ductile copper blade is set up at the front side of the front side inclined clamping groove, the rear side ductile copper blade is set up at the rear side of the inclined clamping groove, the sealing ring is set up at the top of the bottom junction half box, the sealing rubber block is fixedly connected at the bottom of the top junction half box, the sealing rubber block is movably connected at the inside of the sealing ring.

[0010] Preferably, the top of the bottom junction half box is fixedly connected with a mounting bottom plate, the top of the mounting bottom plate is fixedly connected with a protrusion, the inside of the copper sheet is provided with a groove, and the protrusion is movably connected in the inside of the groove.

[0011] Preferably, the top of the inside of the top junction half box is fixedly connected with a second compression spring, the bottom of the second compression spring is fixedly connected with a linkage plate, and the bottom of the linkage plate is fixedly connected with a support frame.

[0012] Preferably, the bottom of the supporting frame is fixedly connected with a clamping cotton block.

[0013] Preferably, the outside of the wiring half-box is sleeved with an elastic protective sleeve, and the top and bottom of the elastic protective sleeve are provided with stretching openings.

[0014] Preferably, the inside of the elastic protective sleeve is fixedly connected with a heat insulation soft pad.

[0015] Preferably, the top of the top wiring half-box is fixedly connected with a heat dissipation block.

[0016] Preferably, the bottom of the clamping cotton block is fixedly connected with an anti-skid pad.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1. The mounting mechanism is arranged, the photovoltaic cable can be mounted without being fixed on the wiring box, the copper sheet cannot be pressed to death, the copper sheet can be contacted with the wiring terminal in a large area during the process of mounting the photovoltaic cable, the conduction is guaranteed, the contact end of the wiring terminal can enter the inclined clamping groove together, the flexible copper sheet on the two sides of the inclined clamping groove is pushed away, the flexible copper sheet is rebounded, the wiring terminal can be contacted with the flexible copper sheet without being fixed and pressed to death, and then the top wiring half-box and the bottom wiring half-box are closed to be mounted by the half-ring clamping block and the clamping jaw.

[0019] 2. The clamping mechanism is arranged, the copper sheet can be inserted through the protrusion and mounted with the photovoltaic cable, the inside of the top wiring half-box is provided with the linkage plate supported by the second compression spring, the bottom of the linkage plate is provided with the four clamping cotton blocks through the supporting frame, the clamping cotton blocks are insulated and soft, the copper sheet is not damaged, the protrusion is clamped in the groove when the top wiring half-box is closed, and the mounting is completed. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structural drawing of the split type photovoltaic wiring box.

[0021] Figure 2 It is the internal structure drawing of the split type photovoltaic wiring box.

[0022] Figure 3 It is the overall structural diagram of the installation mechanism of the utility model;

[0023] Figure 4 It is the overall structural diagram of the clamping mechanism of the utility model;

[0024] Figure 5 It is the overall structural diagram of the elastic protective sleeve of the utility model.

[0025] In the figure, 1, wiring half box; 2, wiring terminal; 3, photovoltaic cable; 4, positive plug; 5, negative plug slot; 6, clamping mechanism; 61, installation base plate; 62, protruding block; 63, recess; 64, second compression spring; 65, linkage plate; 66, support frame; 67, clamping cotton block; 7, copper sheet; 8, diode; 9, installation mechanism; 91, clamping jaw; 92, installation slot; 93, first compression spring; 94, half ring clamping block; 95, sealing ring; 96, sealing rubber block; 97, inclined clamping groove; 98, ductile copper push piece; 10, elastic protective sleeve; 11, stretching opening; 12, heat insulation soft pad; 13, heat dissipation block; 14, anti-skid pad. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-5 The utility model provides technical schemes:

[0028] A split type photovoltaic wiring box, including wiring half box 1, both sides of wiring half box 1 are movably connected with wiring terminal 2, the inner side of wiring terminal 2 is fixedly connected with photovoltaic cable 3, the front side of left photovoltaic cable 3 is fixedly connected with positive plug 4, the front side of right photovoltaic cable 3 is fixedly connected with negative plug slot 5, the inner side of wiring half box 1 is movably connected with clamping mechanism 6, the inner side of clamping mechanism 6 is movably connected with copper sheet 7, the inner side of copper sheet 7 is movably connected with diode 8, the inner side of wiring half box 1 is movably connected with installation mechanism 9;

[0029] The mounting mechanism 9 comprises a clamping jaw 91, a mounting groove 92, a first compression spring 93, a half-ring clamp block 94, a sealing ring 95, a sealing rubber block 96, an inclined clamping groove 97 and a flexible copper push piece 98. The bottom clamping jaw 91 is fixedly connected to the bottom of the bottom terminal half box 1 on both sides, the top clamping jaw 91 is fixedly connected to the bottom of the top terminal half box 1 on both sides, the terminal 2 is movably connected to the bottom of the top clamping jaw 91, the terminal 2 is fixedly connected to the top of the bottom clamping jaw 91, the mounting groove 92 is arranged on the inner side of the bottom terminal half box 1 on both sides, the terminal 2 is movably connected to the inner side of the mounting groove 92, the first compression spring 93 is fixedly connected to the inner side of the top terminal half box 1, the half-ring clamp block 94 is fixedly connected to the bottom of the first compression spring 93, the half-ring clamp block 94 is arranged on the inner side of the mounting groove 92, the half-ring clamp block 94 is movably connected to the outer side of the terminal 2, the inclined clamping groove 97 is arranged on the top of the copper sheet 7 on both sides, the inclined clamping groove 97 is arranged on the right side of the left mounting groove 92, the inclined clamping groove 97 is arranged on the left side of the right mounting groove 92, the terminal 2 is movably connected to the inner side of the inclined clamping groove 97, the front side of the front flexible copper push piece 98 is fixedly connected to the top of the copper sheet 7, the rear side of the rear flexible copper push piece 98 is fixedly connected to the top of the copper sheet 7, the front flexible copper push piece 98 is arranged on the front side of the front inclined clamping groove 97, the rear flexible copper push piece 98 is arranged on the rear side of the inclined clamping groove 97, the sealing ring 95 is arranged on the top of the bottom terminal half box 1, and the sealing rubber block 96 is fixedly connected to the bottom of the top terminal half box 1 and movably connected to the inner side of the sealing ring 95.

[0030] In this embodiment: by separating the bottom terminal half box 1 from the bottom terminal half box 1, the contact end of the terminal 2 on the photovoltaic cable 3 is installed along the mounting groove 92, and the terminal 2 is placed on the bottom clamping jaw 91 after being installed, and the downward pressure is stopped after being stable, at this time the front end of the terminal 2 is located in the mounting groove 92 box inclined clamping groove 97, and in the process of sliding down the inclined clamping groove 97, the front contact end of the terminal 2 will push the flexible copper push piece 98 to both sides, and the flexibility of the flexible copper push piece 98 will pull the flexible copper push piece 98 to the copper sheet 7, but it is blocked by the contact end of the terminal 2, so the flexible copper push piece 98 will be tightly attached to the contact end of the terminal 2, achieving the effect of close-fitting, thereby realizing the need for fixed pressure, after installation, the top terminal half box 1 is inserted and compacted by the sealing rubber block 96 through the sealing ring 95 to achieve adhesion sealing, and in the process of pressing down, the half-ring clamp block 94 will press down the part of the terminal 2 located in the mounting groove 92 and press it tightly through the first compression spring 93, and the top clamping jaw 91 will cooperate with the bottom clamping jaw 91 to clamp the outside of the terminal 2, thereby completing the installation of the terminal half box 1 and the photovoltaic cable 3, and after the terminal half box 1 is scrapped, it is generally in a relatively long time, and the sealing rubber block 96 has low viscosity and can be directly pulled apart to recover the photovoltaic cable 3, or the terminal half box 1 can be supplemented with glue.

[0031] Specifically, asFigure 1 、 Figure 2 、 Figure 4 As shown in FIG. 1, the bottom of the copper sheet 7 is fixedly connected with the bottom wiring half box 1, and the top of the copper sheet 7 is fixedly connected with the top wiring half box 1.

[0032] Specifically, as shown in FIG. 1, the top of the copper sheet 7 is fixedly connected with the top wiring half box 1, and the bottom of the copper sheet 7 is fixedly connected with the bottom wiring half box 1. Figure 1 、 Figure 2 、 Figure 4 As shown in FIG. 1, the top of the copper sheet 7 is fixedly connected with the top wiring half box 1, and the bottom of the copper sheet 7 is fixedly connected with the bottom wiring half box 1.

[0033] Specifically, as shown in FIG. 1, the top of the copper sheet 7 is fixedly connected with the top wiring half box 1, and the bottom of the copper sheet 7 is fixedly connected with the bottom wiring half box 1. Figure 1 、 Figure 2 、 Figure 4 As shown in FIG. 1, the top of the copper sheet 7 is fixedly connected with the top wiring half box 1, and the bottom of the copper sheet 7 is fixedly connected with the bottom wiring half box 1.

[0034] In this embodiment: when the copper sheet 7 is directly inserted through the protrusion 62 and the photovoltaic cable 3 is installed to close the bottom wiring half box 1, the top wiring half box 1 is provided with the linkage plate 65 supported by the second compression spring 64, and the linkage plate 65 is provided with four clamping cotton blocks 67 at the bottom through the support frame 66. The insulation and soft texture are compressed at the same time without causing damage to the copper sheet 7. When the top wiring half box 1 is closed, the second compression spring 64 is pressed down to make the linkage plate 65 downwardly drive the clamping cotton block 67 to compress the copper sheet 7, so that the protrusion 62 is clamped in the inner side of the groove 63 to complete the fixation.

[0035] Specifically, as shown in FIG. 1, the top of the copper sheet 7 is fixedly connected with the top wiring half box 1, and the bottom of the copper sheet 7 is fixedly connected with the bottom wiring half box 1. Figure 1 、 Figure 5 As shown in FIG. 1, the top of the copper sheet 7 is fixedly connected with the top wiring half box 1, and the bottom of the copper sheet 7 is fixedly connected with the bottom wiring half box 1.

[0036] Specifically, as shown in FIG. 1, the top of the copper sheet 7 is fixedly connected with the top wiring half box 1, and the bottom of the copper sheet 7 is fixedly connected with the bottom wiring half box 1. Figure 5 As shown in FIG. 1, the top of the copper sheet 7 is fixedly connected with the top wiring half box 1, and the bottom of the copper sheet 7 is fixedly connected with the bottom wiring half box 1.

[0037] In this embodiment: after installation, the elastic protective sleeve 10 is sleeved outside the wiring half box 1, and the two wiring half boxes 1 are pulled tightly through elasticity, so that the sealing glue force is reduced and the wiring half box 1 can be fixed. After removal, the elastic protective sleeve 10 can be easily removed, and the special material of the elastic protective sleeve 10 can protect the wiring half box 1, and the inner side provided with the heat insulation soft pad 12 can control the temperature of the wiring half box 1.

[0038] Specifically, as shown in FIG. 1, the top of the copper sheet 7 is fixedly connected with the top wiring half box 1, and the bottom of the copper sheet 7 is fixedly connected with the bottom wiring half box 1. Figure 1 、 Figure 2 As shown in FIG. 1, the top of the copper sheet 7 is fixedly connected with the top wiring half box 1, and the bottom of the copper sheet 7 is fixedly connected with the bottom wiring half box 1.

[0039] Specifically, as shown in Figure 3 The bottom of the clamping cotton block 67 is fixedly connected with the anti-skid pad 14.

[0040] In the embodiment: the heat dissipation block 13 is arranged to dissipate heat of the diode 8 inside the wiring half box 1, and the anti-skid pad 14 is arranged to support the friction force of the copper sheet 7 against the clamping cotton block 67.

[0041] Working principle: before installation, the bottom wiring half box 1 is separated from the bottom wiring half box 1, the contact end before the wiring terminal 2 on the photovoltaic cable 3 is installed along the installation groove 92 downward, and the downward pressing is stopped after the wiring terminal 2 is placed on the bottom clamping jaw 91 to be stable, at this time, the front end of the wiring terminal 2 is located in the installation groove 92 box inclined clamping groove 97, and in the sliding process of the inclined clamping groove 97, the front contact end of the wiring terminal 2 will push the flexible copper sheet 98 to the two sides, and the flexibility of the flexible copper sheet 98 will pull the flexible copper sheet 98 to the copper sheet 7, but it is blocked by the contact end of the wiring terminal 2, so the flexible copper sheet 98 will be tightly attached to the contact end of the wiring terminal 2, achieving the effect of sticking, so as to realize the installation without fixing and pressing, after the installation is completed, the top wiring half box 1 is pressed downward through the sealing ring 95, the sealing rubber block 96 is inserted and compacted to achieve adhesion sealing, and in the pressing process, the semi-ring clamping block 94 will press the part of the wiring terminal 2 located in the installation groove 92 and be pressed tightly by the first compression spring 93, and the top clamping jaw 91 will cooperate with the bottom clamping jaw 91 to clamp the outside of the wiring terminal 2, thereby completing the installation of the wiring half box 1 and the photovoltaic cable 3, and after the wiring half box 1 is scrapped, the sealing rubber block 96 with low viscosity can be directly pulled apart to recover the photovoltaic cable 3, or the wiring half box 1 is supplemented with glue, when installing, the copper sheet 7 is directly inserted through the protrusion 62, and the photovoltaic cable 3 is installed to close the bottom wiring half box 1, the top wiring half box 1 is provided with a linkage plate 65 supported by a second compression spring 64, and the bottom of the linkage plate 65 is provided with four clamping cotton blocks 67 through a support frame 66, which are insulated and soft in texture, and will not damage the copper sheet 7 when pressed tightly, when the top wiring half box 1 is closed, the second compression spring 64 is pressed downward to make the linkage plate 65 downwardly drive the clamping cotton block 67 to press the copper sheet 7, so that the protrusion 62 is clamped in the inner side of the groove 63, thereby completing the fixation.

[0042] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Split photovoltaic junction box comprising a junction half-box (1), characterized in that: Both sides of the wiring half box (1) are movably connected with wiring terminals (2), the inner side of the wiring terminal (2) is fixedly connected with a photovoltaic cable (3), the front side of the left photovoltaic cable (3) is fixedly connected with a positive plug (4), the front side of the right photovoltaic cable (3) is fixedly connected with a negative slot (5), the inner side of the wiring half box (1) is movably connected with a clamping mechanism (6), the inner side of the clamping mechanism (6) is movably connected with a copper sheet (7), the inner side of the copper sheet (7) is movably connected with a diode (8), the inner side of the wiring half box (1) is movably connected with a mounting mechanism (9); The mounting mechanism (9) includes a clamping jaw (91), a mounting groove (92), a first compression spring (93), a half ring clamping block (94), a sealing ring (95), a sealing rubber block (96), an inclined clamping groove (97) and a flexible copper sheet (98), the bottom clamping jaw (91) is fixedly connected to the bottom of the bottom wiring half box (1) on both sides, the top clamping jaw (91) is fixedly connected to the bottom of the top wiring half box (1) on both sides, the wiring terminal (2) is movably connected to the bottom of the top clamping jaw (91), the wiring terminal (2) is fixedly connected to the top of the bottom clamping jaw (91), the mounting groove (92) is arranged on both sides of the inner side of the bottom wiring half box (1), the wiring terminal (2) is movably connected to the inner side of the mounting groove (92), the first compression spring (93) is fixedly connected to the inner side of the top of the top wiring half box (1), the half ring clamping block (94) is fixedly connected to the bottom of the first compression spring (93), the half ring clamping block (94) is arranged on the inner side of the mounting groove (92), the half ring clamping block (94) is movably connected to the outer side of the wiring terminal (2), the inclined clamping groove (97) is arranged on both sides of the top of the copper sheet (7), the inclined clamping groove (97) is arranged on the right side of the left mounting groove (92), the inclined clamping groove (97) is arranged on the left side of the right mounting groove (92), the wiring terminal (2) is movably connected to the inner side of the inclined clamping groove (97), the front side of the front flexible copper sheet (98) is fixedly connected to the top of the copper sheet (7), the rear side of the rear flexible copper sheet (98) is fixedly connected to the top of the copper sheet (7), the front flexible copper sheet (98) is arranged on the front side of the front inclined clamping groove (97), the rear flexible copper sheet (98) is arranged on the rear side of the inclined clamping groove (97), the sealing ring (95) is arranged on the top of the bottom wiring half box (1), the sealing rubber block (96) is fixedly connected to the bottom of the top wiring half box (1), and the sealing rubber block (96) is movably connected to the inner side of the sealing ring (95).

2. The split photovoltaic junction box of claim 1, wherein: The top of the bottom wiring half box (1) is fixedly connected with a mounting bottom plate (61), the top of the mounting bottom plate (61) is fixedly connected with a protrusion (62), the inner side of the copper sheet (7) is provided with a groove (63), and the protrusion (62) is movably connected to the inner side of the groove (63).

3. The split photovoltaic junction box of claim 2, wherein: The top of the inner side of the top wiring half box (1) is fixedly connected with a second compression spring (64), the bottom of the second compression spring (64) is fixedly connected with a linkage plate (65), and the bottom of the linkage plate (65) is fixedly connected with a support frame (66).

4. The split photovoltaic junction box of claim 3, wherein: The bottom of the support frame (66) is fixedly connected with a clamping cotton block (67).

5. The split photovoltaic junction box of claim 1, wherein: The outer side of the wiring half box (1) is sleeved with an elastic protective sleeve (10), and the top and bottom of the elastic protective sleeve (10) are provided with stretching openings (11).

6. The split photovoltaic junction box of claim 5, wherein: The inner side of the elastic protective sleeve (10) is fixedly connected with a heat insulation soft pad (12).

7. The split photovoltaic junction box of claim 1, wherein: The top of the top wiring half box (1) is fixedly connected with a heat dissipation block (13).

8. The split photovoltaic junction box of claim 4, wherein: The bottom of the clamping cotton block (67) is fixedly connected with an anti-skid pad (14).

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