Photovoltaic combiner box

Abstract

The utility model discloses a photovoltaic combiner box, which relates to the technical field of photovoltaic combiner boxes and comprises a photovoltaic combiner box body, a first bolt and a second bolt, electric appliance elements are arranged in the photovoltaic combiner box body, and the bottom of the photovoltaic combiner box body is electrically connected with a plurality of cables. The photovoltaic combiner box comprises a photovoltaic combiner box body, the bottom of the photovoltaic combiner box body is fixedly connected with two symmetrically arranged connecting blocks, the bottom of each connecting block is provided with a limiting cover, one side of each limiting cover is rotatably connected with a cover plate through a hinge, and one side of each cover plate is provided with an insulating silica gel pad. Through the arrangement of a structure composed of the limiting cover, the cover plate, the insulating silica gel pad, the lock and the like, the insulating silica gel pad can cooperate with the limiting cover and the cover plate to limit the cable, the shaking space of the cable in a windy environment is reduced, the shaking amplitude of the cable is weakened, and the service life of the cable is prolonged. The problem that the risk of loosening at the joint is increased due to the fact that the shaking frequency of the cable at the bottom of the photovoltaic combiner box is too high under the windy condition is solved.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic combiner box technology, and specifically relates to a photovoltaic combiner box. Background Technology

[0002] The direct current generated by the photovoltaic modules is connected to the input terminal of the combiner box via cables. The photovoltaic combiner box is a wiring device in the photovoltaic power generation system that ensures the orderly connection of photovoltaic modules and the function of current collection. This device can ensure that the photovoltaic system can be easily disconnected during maintenance and inspection, and reduce the scope of power outage when the photovoltaic system fails. To improve the reliability and practicality of the system, the photovoltaic combiner box is usually equipped with photovoltaic-specific DC surge protection modules, DC fuses and circuit breakers, and is equipped with working status indicator lights, lightning counters, etc., so that users can timely and accurately grasp the working status of the photovoltaic cells and ensure that the solar photovoltaic power generation system achieves maximum efficiency.

[0003] In windy conditions, the cables at the bottom of the photovoltaic combiner box will sway due to the wind. Excessive swaying frequency in windy conditions increases the risk of loosening at the connection points, which may not only affect the current transmission efficiency but also threaten the safe operation of the equipment. Therefore, a photovoltaic combiner box is proposed to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a photovoltaic combiner box to solve the problem that the high frequency of swaying of the cables at the bottom of the photovoltaic combiner box in windy conditions will increase the risk of loosening at the connection.

[0005] The specific technical solution is as follows:

[0006] A photovoltaic combiner box includes a photovoltaic combiner box body with built-in electrical components, a first bolt, and a second bolt;

[0007] The bottom of the photovoltaic combiner box body is electrically connected to several cables. The bottom of the photovoltaic combiner box body is fixedly connected to two symmetrically arranged connecting blocks. The bottom of the connecting blocks is provided with a limiting cover with one side open. The top and bottom of the limiting cover are provided with through grooves. The cables are arranged inside the through grooves. One side of the limiting cover is rotatably connected to a cover plate by a hinge.

[0008] Preferably, an installation block is fixedly connected to the outer side of the insulating silicone pad, and the installation block is detachably connected to the cover plate by a first bolt.

[0009] Preferably, an insulating silicone pad is provided on one side of the cover plate.

[0010] Preferably, the top of the limiting cover is fixedly connected to two symmetrically arranged fixing blocks, and the fixing blocks are detachably connected to the connecting block by a second bolt.

[0011] Preferably, the bottom of the photovoltaic combiner box body is fixedly connected to two inclined water baffles, which are symmetrically arranged on the top of the limiting cover.

[0012] Preferably, the inner side of the insulating silicone pad has a number of through holes that are evenly arranged.

[0013] Preferably, the outer sides of the limiting cover and the cover plate are equipped with corresponding locks.

[0014] Compared with existing technologies, this utility model has the following beneficial effects:

[0015] In this invention, a structure consisting of a limiting cover, a through groove, a cover plate, an insulating silicone pad, and a lock is used to place the cable inside the limiting cover through the through groove. The cover plate is then locked to the limiting cover by the lock. At this time, the insulating silicone pad will fit tightly against the cable, thereby limiting the cable in conjunction with the limiting cover and the cover plate, reducing the space for the cable to sway in windy conditions, thus reducing the amplitude of the cable swaying. This solves the problem that the high frequency of cable swaying at the bottom of the photovoltaic combiner box in windy conditions increases the risk of loosening at the connection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This utility model Figure 1 A schematic diagram of the structure at point A;

[0019] Figure 3 This is a schematic diagram of the structure of the limiting cover of this utility model.

[0020] Explanation of key figure labels:

[0021] 1-Photovoltaic combiner box body; 2-Cable; 3-Connecting block; 4-Limit cover; 5-Through groove; 6-Cover plate; 7-Insulating silicone pad; 8-Mounting block; 9-First bolt; 10-Through hole; 11-Fixing block; 12-Second bolt; 13-Water baffle; 14-Lock. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0026] Example

[0027] Please see Figure 1-3This embodiment discloses a photovoltaic combiner box, including a photovoltaic combiner box body 1 with built-in electrical components, a first bolt 9, and a second bolt 12. Several cables 2 are electrically connected to the bottom of the photovoltaic combiner box body 1. Two symmetrically arranged connecting blocks 3 are fixedly connected to the bottom of the photovoltaic combiner box body 1. A limiting cover 4 with one side open is provided at the bottom of the connecting block 3. The top and bottom of the limiting cover 4 are provided with through grooves 5. The cables 2 are arranged inside the through grooves 5. A cover plate 6 is rotatably connected to one side of the limiting cover 4 by a hinge. An insulating silicone pad 7 is provided on one side of the cover plate 6. Locks 14 are installed on the outer sides of the limiting cover 4 and the cover plate 6 in a corresponding manner. This arrangement allows the cables 2 to be limited by the limiting cover 4, the cover plate 6, and the insulating silicone pad 7, reducing the space for the cables 2 to sway in windy conditions, thereby reducing the amplitude of the swaying of the cables 2 and solving the problem that the high frequency of swaying of the cables 2 at the bottom of the photovoltaic combiner box in windy conditions will increase the risk of loosening at the connection.

[0028] An mounting block 8 is fixedly connected to the outer side of the insulating silicone pad 7. The mounting block 8 is detachably connected to the cover plate 6 by a first bolt 9. This arrangement allows for the detachable installation of the insulating silicone pad 7. The inner side of the insulating silicone pad 7 has a number of evenly spaced through holes 10. This arrangement enhances the deformation capability of the insulating silicone pad 7 through the through holes 10. The top of the limiting cover 4 is fixedly connected to two symmetrically arranged fixing blocks 11. The fixing blocks 11 are detachably connected to the connecting block 3 by a second bolt 12. This arrangement allows for the detachable installation of the limiting cover 4. The bottom of the photovoltaic combiner box body 1 is fixedly connected to two inclined water baffles 13. The water baffles 13 are symmetrically arranged on the top of the limiting cover 4. This arrangement allows the water baffles 13 to guide rainwater and prevent rainwater from entering the limiting cover 4.

[0029] Workflow: All electrical appliances in this utility model are equipped with an external power supply or a built-in battery. To improve the reliability and practicality of the photovoltaic combiner box body 1, the photovoltaic combiner box body 1 is usually equipped with a photovoltaic-specific DC lightning protection module, DC fuse, and circuit breaker, and is equipped with working status indicator lights, lightning counters, etc., so that users can timely and accurately grasp the working status of the photovoltaic cells and ensure that the solar photovoltaic power generation system plays its maximum role. First, install the photovoltaic combiner box body 1 in the preset position, and then connect the cable 2 through the through slot 5 opened inside the limiting cover 4 to the wiring terminal inside the photovoltaic combiner box body 1. Thus, the DC power generated by the photovoltaic module can be connected to the input end of the combiner box through the cable 2. After completing the installation of the cable 2, rotate the cover plate 6 towards the limiting cover 4 so that the lock 14 on the cover plate 6 locks together with the lock 14 on the limiting cover 4. At this time, the insulating silicone pad 7 will be in contact with the cable 2, and the mounting block 8 will be set in the inner cavity of the limiting cover 4. The through hole 10 opened inside the insulating silicone pad 7 can enhance the insulating silicone pad 7. The deformability of the rubber pad 7 allows it to better adapt to cables 2 of different sizes. The insulating silicone pad 7, together with the limiting cover 4 and the cover plate 6, limits the movement of the cable 2, reducing the space for it to sway in windy conditions. This reduces the amplitude of the swaying and solves the problem that excessive swaying frequency of the cable 2 at the bottom of the photovoltaic combiner box in windy conditions increases the risk of loosening at the connection. The water baffle 13 prevents rainwater from entering the limiting cover 4 from the through groove 5. When replacing the insulating silicone pad 7, remove the first bolt 9... The first bolt 9 is removed from the mounting block 8 and the insulating silicone pad 7, thus allowing the mounting block 8 and the insulating silicone pad 7 to be disassembled. The installation of the mounting block 8 and the insulating silicone pad 7 can be achieved by reversing the operation. When the limiting cover 4 needs to be replaced, the second bolt 12 is removed and the limiting cover 4 is pulled away from the connecting block 3, thus removing the second bolt 12 from the connecting block 3 and the fixing block 11, thus allowing the fixing block 11 and the limiting cover 4 to be disassembled. The installation of the fixing block 11 and the limiting cover 4 can be achieved by reversing the operation.

[0030] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A photovoltaic combiner box, characterized in that: The photovoltaic combiner box body (1) includes built-in electrical components, a first bolt (9), and a second bolt (12); The bottom of the photovoltaic combiner box body (1) is electrically connected to several cables (2). The bottom of the photovoltaic combiner box body (1) is fixedly connected to two symmetrically arranged connecting blocks (3). The bottom of the connecting blocks (3) is provided with a limiting cover (4) with one side open. The top and bottom of the limiting cover (4) are provided with through grooves (5). The cables (2) are arranged inside the through grooves (5). One side of the limiting cover (4) is connected to a cover plate (6) by a hinge.

2. A photovoltaic combiner box according to claim 1, characterized in that: An installation block (8) is fixedly connected to the outside of the insulating silicone pad (7), and the installation block (8) is detachably connected to the cover plate (6) by a first bolt (9).

3. A photovoltaic combiner box according to claim 1, characterized in that: An insulating silicone pad (7) is provided on one side of the cover plate (6).

4. A photovoltaic combiner box according to claim 1, characterized in that: The top of the limiting cover (4) is fixedly connected to two symmetrically arranged fixing blocks (11), and the fixing blocks (11) are detachably connected to the connecting block (3) by a second bolt (12).

5. A photovoltaic combiner box according to claim 1, characterized in that: The bottom of the photovoltaic combiner box body (1) is fixedly connected to two inclined baffles (13), which are symmetrically arranged on the top of the limiting cover (4).

6. A photovoltaic combiner box according to claim 3, characterized in that: The insulating silicone pad (7) has through holes (10) evenly arranged on its inner side, and there are a total number of through holes (10).

7. A photovoltaic combiner box according to claim 1, characterized in that: Locks (14) are installed on the outer sides of the limiting cover (4) and the cover plate (6) in a corresponding manner.

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