A distributed photovoltaic power generation combiner box with protection function

Abstract

The utility model relates to the technical field of junction boxes, and discloses a distributed photovoltaic power generation junction box with a protective function, including a junction box, a cover plate fixedly arranged on the top surface of the junction box, a box door arranged on the front surface of the junction box, the box door and the junction box are hinged, a fixing plate one is fixedly arranged inside the junction box, a wire bundling mechanism is arranged below the fixing plate one, a placement mechanism is arranged below the wire bundling mechanism, the wire bundling mechanism includes a wire bundling part and a fixing part, the wire bundling part is located on the left side of the fixing part, the placement mechanism includes a connecting part and a placement part, the wire harness is restricted by moving the hinged rod so that the right end of the hinged rod is located in the placement groove of the fixing seat, and the upper end wire harness of the working element is fixed by fixing the bolt to ensure that the wire harness will not be entangled inside the junction box, thereby improving the safety of the device, and the working element is conveniently installed and disassembled by clamping the working element with the fixing frame two, the fixing plate two is connected with the fixing frame one by bolts, so as to facilitate the installation and fixation of the placement frame.

Description

Technical Field

[0001] The utility model relates to the technical field of combiner boxes, in particular to a distributed photovoltaic power generation combiner box with a protective function. Background Art

[0002] The combiner box is a wiring device that ensures the orderly connection and convergence function of photovoltaic modules in the photovoltaic power generation system. This device can ensure that the photovoltaic system is easy to cut off the circuit during maintenance and inspection, and reduce the scope of power outage when the photovoltaic system fails. The combiner box means that users can connect a certain number of photovoltaic cells of the same specifications in series to form photovoltaic strings, and then connect several photovoltaic strings in parallel to the photovoltaic combiner box. After the convergence in the photovoltaic combiner box, it is used in conjunction with the controller, DC distribution cabinet, photovoltaic inverter, and AC distribution cabinet to form a complete photovoltaic power generation system;

[0003] When the existing combiner box is in use, the internal working component circuits do not have a wiring harness with a fixed mechanism, and the wiring harness will be tangled and disordered inside the combiner box. During use, the wiring harness surface temperature may increase due to contact between the wiring harnesses, thereby causing fire.

[0004] Therefore, a distributed photovoltaic power generation combiner box with protection function is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a distributed photovoltaic power generation combiner box with a protection function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a distributed photovoltaic power generation combiner box with a protective function, comprising a combiner box, a cover plate is fixedly arranged on the top surface of the combiner box, a box door is arranged on the front of the combiner box, the box door is hinged to the combiner box, a fixing plate 1 is fixedly arranged inside the combiner box, a wire bundling mechanism is arranged below the fixing plate 1, and a placement mechanism is arranged below the wire bundling mechanism;

[0007] The wire harness mechanism comprises a wire harness portion and a fixing portion;

[0008] The cable harness is located on the left side of the fixed part;

[0009] The placement mechanism comprises a connecting portion and a placing portion.

[0010] Preferably, the wiring harness portion comprises an articulated seat, the articulated seat is fixedly connected to the inner wall of the combiner box, an articulated rod is arranged in front of the articulated seat, and the articulated seat is articulated to the articulated rod.

[0011] Preferably, a limit block is fixedly provided on the back of the articulated rod, a plurality of limit blocks are horizontally arranged, and the limit blocks are spaced at the same intervals, and the articulated rod is moved to limit the wiring harness.

[0012] Preferably, the fixing part includes a fixing seat, which is fixedly connected to the inner wall of the junction box, a placement groove is provided at the front end of the fixing seat, the right end of the hinged rod is located in the placement groove, and a fixing plug is provided above the fixing seat. The fixing seat is connected to the right end of the hinged rod through the fixing plug to fix the upper end wiring harness of the working element to ensure that the wiring harness will not be entangled inside the junction box, thereby improving the safety of the device.

[0013] Preferably, a lightning arrester is provided on the right side of the fixing plate, a DC circuit breaker is provided on the right side of the lightning arrester, and the lightning arrester and the DC circuit breaker are fixedly connected to the inner wall of the junction box to protect the internal circuits of the device.

[0014] Preferably, the connecting part includes a placement rack, a fixing rack 1 is arranged behind the placement rack, the fixing rack 1 is fixedly connected to the inner wall of the junction box, a fixing plate 2 is fixedly arranged on the top surface of the placement rack, and the fixing plate 2 is connected to the placement rack by bolts, so as to facilitate the installation and fixation of the placement rack.

[0015] Preferably, the placement portion includes a second fixing frame, the back side of the second fixing frame is fixedly connected to the fixing plate, a working element is arranged inside the second fixing frame, and the working element is clamped with the second fixing frame to facilitate installation and removal of the working element.

[0016] Preferably, a wire harness groove is provided at the lower end of the second fixing frame, and a wire release groove is provided on the bottom surface of the inner wall of the junction box. The wire release groove is located below the wire harness groove and is capable of placing and restricting the wire harness at the lower end of the working component.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the distributed photovoltaic power generation combiner box with protection function,

[0018] 1) The wiring harness is restricted by moving the hinged rod so that the right end of the hinged rod is located in the placement groove of the fixed seat, and the wiring harness on the upper end of the working element is fixed by fixing the bolt to ensure that the wiring harness will not be entangled inside the junction box, thereby improving the safety of the device.

[0019] 2) The working element is connected to the second fixing frame by clamping, so that the working element can be installed and disassembled conveniently. The second fixing plate is connected to the first fixing frame by bolts, so that the placement frame can be installed and fixed conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a three-dimensional schematic diagram of the wire harness mechanism of the utility model;

[0022] Figure 3 For this utility model Figure 2 Enlarged view of part A;

[0023] Figure 4 It is a three-dimensional schematic diagram of the fixing mechanism of the utility model;

[0024] Figure 5 This is an exploded view of the fixing mechanism of the utility model.

[0025] In the figure: combiner box 1, cover plate 2, box door 3, bottom plate 4, DC circuit breaker 5, lightning arrester 6, wire harness mechanism 7, hinged seat 71, hinged rod 72, limit block 73, fixed seat 74, fixed plug 75, placement mechanism 8, placement frame 81, fixed frame 1 82, fixed plate 2 83, fixed frame 2 84, working element 85, fixed plate 1 9. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1:

[0028] See also Figure 1-Figure 5 The utility model provides a technical solution: a distributed photovoltaic power generation junction box with a protective function, comprising a junction box 1, a cover plate 2 is fixedly arranged on the top surface of the junction box 1, a box door 3 is arranged on the front surface of the junction box 1, the box door 3 is hinged to the junction box 1, a fixing plate 9 is fixedly arranged inside the junction box 1, a wire bundling mechanism 7 is arranged below the fixing plate 9, and a placing mechanism 8 is arranged below the wire bundling mechanism 7;

[0029] The wire harness mechanism 7 includes a wire harness portion and a fixing portion;

[0030] The cable harness is located on the left side of the fixed part;

[0031] The placement mechanism 8 includes a connecting portion and a placement portion;

[0032] The harness portion includes an articulated seat 71, which is fixedly connected to the inner wall of the combiner box 1, a hinged rod 72 is arranged in front of the articulated seat 71, the articulated seat 71 is hinged to the articulated rod 72, a limit block 73 is fixedly arranged on the back of the articulated rod 72, and a plurality of limit blocks 73 are arranged horizontally, and the limit blocks 73 are spaced at the same intervals;

[0033] The fixing part includes a fixing seat 74, which is fixedly connected to the inner wall of the combiner box 1. A placement groove is provided at the front end of the fixing seat 74, and the right end of the hinged rod 72 is located in the placement groove. A fixing plug 75 is provided above the fixing seat 74, and the fixing seat 74 is connected to the right end of the hinged rod 72 through the fixing plug 75. A lightning arrester 6 is provided on the right side of the fixing plate 9, and a DC circuit breaker 5 is provided on the right side of the lightning arrester 6. The lightning arrester 6 and the DC circuit breaker 5 are fixedly connected to the inner wall of the combiner box 1;

[0034] Furthermore, in this embodiment, the upper end wire harness of the working element 85 is connected to the upper end fixing plate 9 through the interval of the limit block 73 in sequence, and the hinge rod 72 is moved to limit the wire harness, so that the right end of the hinge rod 72 is located in the placement groove of the fixing seat 74 and fixed by the fixing plug 75;

[0035] Furthermore, in this embodiment, the wire harness is restricted by moving the hinge rod 72, so that the right end of the hinge rod 72 is located in the placement groove of the fixing seat 74, and the wire harness on the upper end of the working element 85 is fixed by the fixing plug 75 to ensure that the wire harness will not be entangled inside the junction box, thereby improving the safety of the device;

[0036] Embodiment 2

[0037] See also Figure 1-Figure 5 , and on the basis of the first embodiment, it is further obtained that: the connection part includes a placement frame 81, a fixing frame 82 is arranged behind the placement frame 81, the fixing frame 82 is fixedly connected to the inner wall of the combiner box 1, and a fixing plate 83 is fixedly arranged on the top surface of the placement frame 81, and the fixing plate 83 is connected to the placement frame 81 by bolts;

[0038] The placement part includes a second fixing frame 84, the back of the second fixing frame 84 is fixedly connected to the fixing plate 83, a working element 85 is arranged inside the second fixing frame 84, the working element 85 is clamped with the second fixing frame 84, a wire harness groove is opened at the lower end of the second fixing frame 84, and a wire release groove is opened on the bottom surface of the inner wall of the junction box 1, and the wire release groove is located below the wire harness groove;

[0039] Furthermore, in this embodiment, the working element 85 is clamped with the second fixing frame 84, which is convenient for installing and disassembling the working element 85. The fixing plate 83 is connected to the fixing frame 82 by bolts. The lower end of the second fixing frame 84 is provided with a harness groove, which can place and limit the harness at the lower end of the working element 85.

[0040] Furthermore, in this embodiment, the working element 85 is clamped with the second fixing frame 84 to facilitate installation and removal of the working element 85, and the second fixing plate 83 is connected to the first fixing frame 82 by bolts to facilitate installation and fixation of the placement frame 81.

[0041] When in use, the working element 85 is snap-fitted with the fixing frame 84 to facilitate the installation and disassembly of the working element 85. The fixing plate 83 is connected to the fixing frame 82 by bolts to facilitate the installation and fixation of the placement frame 81. A wire harness groove is provided at the lower end of the fixing frame 84 to place and limit the wire harness at the lower end of the working element 85. The wire harness at the upper end of the working element 85 is connected to the upper fixing plate 9 at the intervals of the limit blocks 73 in turn. The hinged rod 72 is moved to limit the wire harness so that the right end of the hinged rod 72 is located in the placement groove of the fixing seat 74. The wire harness at the upper end of the working element 85 is fixed by the fixing plug 75 to ensure that the wire harness will not be entangled inside the junction box, thereby improving the safety of the device.

[0042] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distributed photovoltaic power generation combiner box with a protective function, comprising a combiner box (1), characterized in that: The top surface of the junction box (1) is fixedly provided with a cover plate (2), the front surface of the junction box (1) is provided with a box door (3), the box door (3) is hinged to the junction box (1), a fixing plate (9) is fixedly provided inside the junction box (1), a wire bundling mechanism (7) is provided below the fixing plate (9), and a placement mechanism (8) is provided below the wire bundling mechanism (7); The wire harness mechanism (7) comprises a wire harness portion and a fixing portion; The cable harness is located on the left side of the fixed part; The placement mechanism (8) comprises a connecting portion and a placement portion.

2. A distributed photovoltaic power generation combiner box with protection function according to claim 1, characterized in that: The wiring harness portion comprises an articulated seat (71), the articulated seat (71) is fixedly connected to the inner wall of the junction box (1), a hinged rod (72) is arranged in front of the articulated seat (71), and the articulated seat (71) is articulated with the articulated rod (72).

3. A distributed photovoltaic power generation combiner box with protection function according to claim 2, characterized in that: A limit block (73) is fixedly arranged on the back of the hinge rod (72), and a plurality of the limit blocks (73) are arranged horizontally, and the limit blocks (73) are spaced at the same intervals.

4. The distributed photovoltaic power generation combiner box with protection function according to claim 1, characterized in that: The fixing portion comprises a fixing seat (74), the fixing seat (74) being fixedly connected to the inner wall of the junction box (1), a placement groove being provided at the front end of the fixing seat (74), the right end of the hinged rod (72) being located in the placement groove, a fixing plug (75) being provided above the fixing seat (74), and the fixing seat (74) being connected to the right end of the hinged rod (72) via the fixing plug (75).

5. The distributed photovoltaic power generation combiner box with protection function according to claim 1, characterized in that: A lightning arrester (6) is arranged on the right side of the fixing plate 1 (9), a DC circuit breaker (5) is arranged on the right side of the lightning arrester (6), and the lightning arrester (6) and the DC circuit breaker (5) are fixedly connected to the inner wall of the junction box (1).

6. The distributed photovoltaic power generation combiner box with protection function according to claim 1, characterized in that: The connecting portion comprises a placement frame (81), a fixing frame 1 (82) is arranged at the rear of the placement frame (81), the fixing frame 1 (82) is fixedly connected to the inner wall of the junction box (1), and a fixing plate 2 (83) is fixedly arranged on the top surface of the placement frame (81), and the fixing plate 2 (83) is connected to the placement frame (81) by bolts.

7. The distributed photovoltaic power generation combiner box with protection function according to claim 1, characterized in that: The placement portion comprises a second fixing frame (84), the back of which is fixedly connected to a second fixing plate (83), and a working element (85) is arranged inside the second fixing frame (84), and the working element (85) is clamped with the second fixing frame (84).

8. The distributed photovoltaic power generation combiner box with protection function according to claim 7, characterized in that: The lower end of the second fixing frame (84) is provided with a wire harness groove, and the bottom surface of the inner wall of the junction box (1) is provided with a wire release groove, which is located below the wire harness groove.

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