Hidden photovoltaic junction box

Abstract

The utility model relates to a hidden photovoltaic junction box. The lower part of the junction box is rotatably connected with a cover plate, the cover plate comprises a rotating plate, the lower part of a first mounting frame is rotatably connected with the rotating plate, the rotating plate is connected with a clamping plate, the clamping plate is clamped with a clamping block, the first mounting frame is provided with four through holes, and the first mounting frame is provided with three circuit boards. By arranging the filter screen, the ventilation area of the junction box is increased, the heat dissipation effect of the circuit board is further improved, meanwhile, the filter screen can prevent impurities from entering the junction box, the slope structure of the baffle plate plays a role in blocking or guiding rainwater or other impurities, and when impurities are accumulated on the filter screen, the pressing plate is pressed backwards, so that the circuit board is prevented from being damaged. The pressing plate drives the cleaning plate to move backwards, and the cleaning plate can scrape impurities accumulated on the filter screen, so that the surface of the filter screen is kept clean, and normal ventilation and heat dissipation effects are recovered.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic technology field especially relates to a hidden photovoltaic junction box. BACKGROUND

[0002] The photovoltaic junction box is one of important components of solar photovoltaic assembly, is used for connecting the output circuit of solar cell panel, gathers and transmits the current generated to inverter or other power system, the photovoltaic junction box is usually installed on photovoltaic panel, and the circuit board of line connection operates and can emit heat, the existing junction box is opened and has a vent to promote the heat dissipation of circuit board, the existing vent is single in ventilation direction, and there is limited ventilation effect, and the insufficient heat dissipation of circuit board can affect the normal operation of circuit board.

[0003] In view of the above problem, a hidden photovoltaic junction box is developed. UTILITY MODEL CONTENTS

[0004] In order to overcome the single ventilation direction of the existing vent, the limited ventilation effect, the insufficient heat dissipation of circuit board, and the possible influence on the normal operation of circuit board, the utility model provides a hidden photovoltaic junction box.

[0005] The utility model discloses a hidden photovoltaic junction box, including junction box, junction box includes first installation frame, the first installation frame upper side is connected with the clamping block on the front part, the first installation frame is opened 2 vents on, the first installation frame is connected with 3 positioning blocks, the first installation frame lower part is connected with 2 junction sleeves, the junction box lower part is rotatably connected with the cover plate, the cover plate includes the rotating plate, the first installation frame lower part is rotatably connected with the rotating plate, the rotating plate is connected with the clamping plate, the clamping plate is connected with the clamping block, the first installation frame is opened 4 through -holes, and the first installation frame is installed 3 circuit boards.

[0006] In a preferred embodiment of the utility model, it further includes filter screen, the first installation frame left and right sides are connected with 7 filter screens, the first installation frame left and right sides are installed with second installation frame, the first installation frame left and right sides are connected with 7 shielding plates, the second installation frame is installed with cleaning assembly, the cleaning assembly includes pressing plate, the second installation frame upper and lower parts are slidably connected with the pressing plate, the pressing plate is connected with 7 cleaning plates, the cleaning plate is adjacent to the filter screen and plays the role of cleaning, and the pressing plate upper and lower parts are connected with adjacent second installation frame with reset spring.

[0007] In a preferred embodiment of the utility model, the first installation frame lower part is installed with 3 arc structure's limit block.

[0008] In a preferred embodiment of the utility model, the circuit boards are all connected in a detachable manner.

[0009] In a preferred embodiment of the utility model, the shielding plates are all inclined surface structures.

[0010] In a preferred embodiment of the utility model, the pressing plates are all connected with assisting pieces.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The utility model discloses a filter screen, enlarge the ventilation area of junction box, and then improve the heat dissipation effect of circuit board, meanwhile, the filter screen can prevent impurities from entering the junction box, the inclined surface structure of the shielding plate can block or guide the rainwater or other impurities, when the impurities accumulate on the filter screen, press the pressing plate backward, the pressing plate drives the cleaning plate to move backward, the cleaning plate can scrape off the accumulated impurities on the filter screen, and then the surface of the filter screen is kept clean, so that the normal ventilation and heat dissipation effect is recovered. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the first kind of three-dimensional structure schematic diagram of the utility model.

[0014] Figure 2 It is the second kind of three-dimensional structure schematic diagram of the utility model.

[0015] Figure 3 It is the third kind of three-dimensional structure schematic diagram of the utility model.

[0016] Figure 4 It is the first kind of partial cross section three-dimensional structure schematic diagram of the utility model.

[0017] Figure 5 It is the second kind of partial cross section three-dimensional structure schematic diagram of the utility model.

[0018] The marks of various components in the drawings are as follows: 1, junction box, 101, first mounting frame, 102, clamping block, 103, ventilation opening, 104, positioning block, 105, wiring sleeve, 2, cover plate, 201, rotating plate, 202, clamping plate, 3, through hole, 4, circuit board, 5, filter screen, 6, second mounting frame, 7, shielding plate, 8, cleaning assembly, 81, pressing plate, 82, cleaning plate, 9, reset spring. DETAILED DESCRIPTION

[0019] It is first to be noted that in the different described embodiments identical components are provided with identical reference numerals or identical component names, wherein the disclosure contained in the entire description can be transferred by its meaning to the identical components having the identical reference numerals or identical component names. The chosen position indications in the description, for example, upper, lower, lateral, and the like, also refer to the directly described and shown figures and are transferred by their meaning to the new positions in case of a change of position.

[0020] A hidden photovoltaic junction box, as shown in Figures 1-3 The junction box 1 comprises a first mounting frame 101, three arc-shaped limiting blocks are mounted on the lower part of the first mounting frame 101, a clamping block 102 is connected to the upper side of the front part of the first mounting frame 101, two ventilation openings 103 are opened on the first mounting frame 101, three positioning blocks 104 are connected to the first mounting frame 101, two wire sleeves 105 are connected to the lower part of the first mounting frame 101, a cover plate 2 is rotatably connected to the lower part of the junction box 1, the cover plate 2 comprises a rotating plate 201, the rotating plate 201 is rotatably connected to the lower part of the first mounting frame 101, a clamping plate 202 is connected to the rotating plate 201, the clamping plate 202 is clamped with the clamping block 102, four through holes 3 are opened on the first mounting frame 101, three circuit boards 4 are mounted on the first mounting frame 101, and the circuit boards 4 are all detachably connected structures.

[0021] As shown in Figures 1-5 The first mounting frame 101 is connected with seven filter screens 5 on the left and right sides, the first mounting frame 101 is mounted with a second mounting frame 6 on the left and right sides, the first mounting frame 101 is connected with seven shielding plates 7 on the left and right sides, the shielding plates 7 are all inclined surface structures, the second mounting frame 6 is mounted with a cleaning assembly 8, the cleaning assembly 8 comprises a pressing plate 81, the pressing plate 81 is slidingly connected between the upper and lower parts of the second mounting frame 6, the pressing plate 81 is connected with a power-assisted part, the pressing plate 81 is connected with seven cleaning plates 82, the cleaning plates 82 clean the adjacent filter screens 5, and the upper and lower parts of the pressing plate 81 are connected with a reset spring 9 between the adjacent second mounting frames 6.

[0022] It should be noted that the photovoltaic junction box 1 is one of the important components of the solar photovoltaic module, used for connecting the output line of the solar panel, collecting and transmitting the generated current to the inverter or other power system, the photovoltaic junction box 1 is usually installed on the photovoltaic panel, first turn the rotating plate 201 outward, so that the clamping plate 202 is separated from the clamping state with the clamping block 102, then install the junction box 1 on the photovoltaic panel through the through hole 3, then pass the line through the junction sleeve 105, and connect it to the corresponding circuit board 4 with the limiting block, to complete the line connection operation, the ventilation opening 103 can increase the ventilation area of the circuit board 4, thereby improving the ventilation and heat dissipation effect, when the circuit board 4 needs to be replaced, the circuit board 4 can be quickly positioned with the positioning block 104, and then the circuit board 4 is fixed on the first mounting frame 101 by means of screws, so that the circuit board 4 is quickly replaced, the filter screen 5 can increase the heat dissipation area of the junction box 1, and can prevent impurities from entering the junction box 1, the inclined surface structure of the shielding plate 7 blocks or guides the rainwater or other impurities, when impurities accumulate on the filter screen 5, press the pressing plate 81 backward, the pressing plate 81 drives the cleaning plate 82 to move backward, the reset spring 9 is compressed under stress, with the backward movement of the cleaning plate 82, the cleaning plate 82 will scrape off the impurities accumulated on the filter screen 5, thereby keeping the surface of the filter screen 5 clean to restore the normal ventilation and heat dissipation effect.

[0023] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that changes can be made in these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A concealed photovoltaic junction box, characterized in that, The utility model provides an improved junction box, which comprises a junction box (1), the junction box (1) comprises a first mounting frame (101), the first mounting frame (101) is connected with the clamping block (102) on the upper side of front part, the first mounting frame (101) is opened with 2 air vents (103), the first mounting frame (101) is connected with 3 locating blocks (104), the first mounting frame (101) is connected with 2 junction sleeves (105) in lower part, the junction box (1) is rotatably connected with the cover plate (2) in lower part, the cover plate (2) comprises the rotary plate (201), the first mounting frame (101) is rotatably connected with the rotary plate (201) in lower part, the rotary plate (201) is connected with the clamping plate (202), the clamping plate (202) is clamped with the clamping block (102), the first mounting frame (101) is opened with 4 through -holes (3), and the first mounting frame (101) is installed with 3 circuit boards (4).

2. A flush photovoltaic junction box according to claim 1, wherein It also comprises filter screens (5), the first mounting frame (101) is connected with 7 filter screens (5) on the left and right sides, the first mounting frame (101) is installed with second mounting frames (6) on the left and right sides, the first mounting frame (101) is connected with 7 shielding plates (7) on the left and right sides, the second mounting frame (6) is installed with cleaning assemblies (8) on the left and right sides, the cleaning assembly (8) comprises a pressing plate (81), the second mounting frame (6) is slidably connected with the pressing plate (81) between the upper and lower parts, the pressing plate (81) is connected with 7 cleaning plates (82), the cleaning plate (82) cleans the adjacent filter screen (5), and the upper and lower parts of the pressing plate (81) are connected with reset springs (9) between the adjacent second mounting frames (6).

3. A flush photovoltaic junction box as described in claim 1, wherein, The first mounting frame (101) is installed with 3 arc-shaped limit blocks in lower part.

4. A flush photovoltaic junction box according to claim 1, wherein The circuit board (4) is detachably connected.

5. A flush photovoltaic junction box according to claim 2, wherein The shielding plate (7) is a slope structure.

6. A flush photovoltaic junction box according to claim 2, wherein The pressing plate (81) is connected with a booster.

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